feat(backend): test node cache selective invalidation

invoking needs access to `node_cache_size` to occur

.github/ISSUE_TEMPLATE/FEATURE_REQUEST.yml

@@ -1,5 +1,5 @@
 name: Feature Request
-description: Commit a idea or Request a new feature
+description: Contribute a idea or request a new feature
 title: '[enhancement]: '
 labels: ['enhancement']
 # assignees:
@@ -9,14 +9,14 @@ body:
   - type: markdown
     attributes:
       value: |
-        Thanks for taking the time to fill out this Feature request!
+        Thanks for taking the time to fill out this feature request!
 
   - type: checkboxes
     attributes:
       label: Is there an existing issue for this?
       description: |
         Please make use of the [search function](https://github.com/invoke-ai/InvokeAI/labels/enhancement)
-        to see if a simmilar issue already exists for the feature you want to request
+        to see if a similar issue already exists for the feature you want to request
       options:
         - label: I have searched the existing issues
           required: true
@@ -34,12 +34,9 @@ body:
     id: whatisexpected
     attributes:
       label: What should this feature add?
-      description: Please try to explain the functionality this feature should add
+      description: Explain the functionality this feature should add. Feature requests should be for single features. Please create multiple requests if you want to request multiple features.
       placeholder: |
-        Instead of one huge textfield, it would be nice to have forms for bug-reports, feature-requests, ...
-        Great benefits with automatic labeling, assigning and other functionalitys not available in that form
-        via old-fashioned markdown-templates. I would also love to see the use of a moderator bot 🤖 like
-        https://github.com/marketplace/actions/issue-moderator-with-commands to auto close old issues and other things
+        I'd like a button that creates an image of banana sushi every time I press it. Each image should be different. There should be a toggle next to the button that enables strawberry mode, in which the images are of strawberry sushi instead.
     validations:
       required: true
 
@@ -51,6 +48,6 @@ body:
 
   - type: textarea
     attributes:
-      label: Aditional Content
+      label: Additional Content
       description: Add any other context or screenshots about the feature request here.
-      placeholder: This is a Mockup of the design how I imagine it <screenshot>
+      placeholder: This is a mockup of the design how I imagine it <screenshot>

.github/workflows/style-checks.yml

@@ -1,6 +1,4 @@
 name: style checks
-# just formatting and flake8 for now
-# TODO: add isort later
 
 on:
   pull_request:
@@ -20,8 +18,8 @@ jobs:
 
       - name: Install dependencies with pip
         run: |
-          pip install black flake8 Flake8-pyproject
+          pip install black flake8 Flake8-pyproject isort
 
-      # - run: isort --check-only .
+      - run: isort --check-only .
       - run: black --check .
       - run: flake8

.pre-commit-config.yaml

@@ -15,3 +15,10 @@ repos:
     language: system
     entry: flake8
     types: [python]
+
+  - id: isort
+    name: isort
+    stages: [commit]
+    language: system
+    entry: isort
+    types: [python]

README.md

@@ -46,13 +46,13 @@ the foundation for multiple commercial products.
   Install](https://invoke-ai.github.io/InvokeAI/installation/INSTALLATION/)] [<a
   href="https://discord.gg/ZmtBAhwWhy">Discord Server</a>] [<a
   href="https://invoke-ai.github.io/InvokeAI/">Documentation and
-  Tutorials</a>] [<a
-  href="https://github.com/invoke-ai/InvokeAI/">Code and
-  Downloads</a>] [<a
-  href="https://github.com/invoke-ai/InvokeAI/issues">Bug Reports</a>]
+  Tutorials</a>]
+  [<a href="https://github.com/invoke-ai/InvokeAI/issues">Bug Reports</a>]
   [<a
   href="https://github.com/invoke-ai/InvokeAI/discussions">Discussion,
   Ideas & Q&A</a>] 
+   [<a
+  href="https://invoke-ai.github.io/InvokeAI/contributing/CONTRIBUTING/">Contributing</a>] 
 
 <div align="center">
 
@@ -368,9 +368,9 @@ InvokeAI offers a locally hosted Web Server & React Frontend, with an industry l
 
 The Unified Canvas is a fully integrated canvas implementation with support for all core generation capabilities, in/outpainting, brush tools, and more. This creative tool unlocks the capability for artists to create with AI as a creative collaborator, and can be used to augment AI-generated imagery, sketches, photography, renders, and more.
 
-### *Node Architecture & Editor (Beta)*
+### *Workflows & Nodes*
 
-Invoke AI's backend is built on a graph-based execution architecture. This allows for customizable generation pipelines to be developed by professional users looking to create specific workflows to support their production use-cases, and will be extended in the future with additional capabilities.
+InvokeAI offers a fully featured workflow management solution, enabling users to combine the power of nodes based workflows with the easy of a UI. This allows for customizable generation pipelines to be developed and shared by users looking to create specific workflows to support their production use-cases.
 
 ### *Board & Gallery Management*
 
@@ -383,8 +383,9 @@ Invoke AI provides an organized gallery system for easily storing, accessing, an
 - *Upscaling Tools*
 - *Embedding Manager & Support*
 - *Model Manager & Support*
+- *Workflow creation & management*
 - *Node-Based Architecture*
-- *Node-Based Plug-&-Play UI (Beta)*
+
 
 ### Latest Changes
 
@@ -395,20 +396,18 @@ Notes](https://github.com/invoke-ai/InvokeAI/releases) and the
 ### Troubleshooting
 
 Please check out our **[Q&A](https://invoke-ai.github.io/InvokeAI/help/TROUBLESHOOT/#faq)** to get solutions for common installation
-problems and other issues.
+problems and other issues. For more help, please join our [Discord][discord link]
 
 ## Contributing
 
 Anyone who wishes to contribute to this project, whether documentation, features, bug fixes, code
 cleanup, testing, or code reviews, is very much encouraged to do so.
 
-To join, just raise your hand on the InvokeAI Discord server (#dev-chat) or the GitHub discussion board.
-
-If you'd like to help with translation, please see our [translation guide](docs/other/TRANSLATION.md).
+Get started with contributing by reading our [Contribution documentation](https://invoke-ai.github.io/InvokeAI/contributing/CONTRIBUTING/), joining the [#dev-chat](https://discord.com/channels/1020123559063990373/1049495067846524939) or the GitHub discussion board.
 
 If you are unfamiliar with how
-to contribute to GitHub projects, here is a
-[Getting Started Guide](https://opensource.com/article/19/7/create-pull-request-github). A full set of contribution guidelines, along with templates, are in progress. You can **make your pull request against the "main" branch**.
+to contribute to GitHub projects, we have a new contributor checklist you can follow to get started contributing: 
+[New Contributor Checklist](https://invoke-ai.github.io/InvokeAI/contributing/contribution_guides/newContributorChecklist/).
 
 We hope you enjoy using our software as much as we enjoy creating it,
 and we hope that some of those of you who are reading this will elect
@@ -424,7 +423,7 @@ their time, hard work and effort.
 
 ### Support
 
-For support, please use this repository's GitHub Issues tracking service, or join the Discord.
+For support, please use this repository's GitHub Issues tracking service, or join the [Discord][discord link].
 
 Original portions of the software are Copyright (c) 2023 by respective contributors.
 

docs/contributing/CONTRIBUTING.md

@@ -1,39 +1,41 @@
-# How to Contribute
+# Contributing
 
-## Welcome to Invoke AI
 Invoke AI originated as a project built by the community, and that vision carries forward today as we aim to build the best pro-grade tools available. We work together to incorporate the latest in AI/ML research, making these tools available in over 20 languages to artists and creatives around the world as part of our fully permissive OSS project designed for individual users to self-host and use.
 
 
-## Contributing to Invoke AI
+# Methods of Contributing to Invoke AI
 Anyone who wishes to contribute to InvokeAI, whether features, bug fixes, code cleanup, testing, code reviews, documentation or translation is very much encouraged to do so.
 
-To join, just raise your hand on the InvokeAI Discord server (#dev-chat) or the GitHub discussion board.
+## Development
+If you’d like to help with development, please see our [development guide](contribution_guides/development.md). 
 
-### Areas of contribution: 
+**New Contributors:** If you’re unfamiliar with contributing to open source projects, take a look at our [new contributor guide](contribution_guides/newContributorChecklist.md).
 
-#### Development
-If you’d like to help with development, please see our [development guide](contribution_guides/development.md). If you’re unfamiliar with contributing to open source projects, there is a tutorial contained within the development guide.
+## Nodes
+If you’d like to add a Node, please see our [nodes contribution guide](../nodes/contributingNodes.md).
 
-#### Nodes
-If you’d like to help with development, please see our [nodes contribution guide](/nodes/contributingNodes). If you’re unfamiliar with contributing to open source projects, there is a tutorial contained within the development guide.
+## Support and Triaging
+Helping support other users in [Discord](https://discord.gg/ZmtBAhwWhy) and on Github are valuable forms of contribution that we greatly appreciate. 
 
-#### Documentation
+We receive many issues and requests for help from users. We're limited in bandwidth relative to our the user base, so providing answers to questions or helping identify causes of issues is very helpful. By doing this, you enable us to spend time on the highest priority work. 
+
+## Documentation
 If you’d like to help with documentation, please see our [documentation guide](contribution_guides/documentation.md).
 
-#### Translation
+## Translation
 If you'd like to help with translation, please see our [translation guide](contribution_guides/translation.md).
 
-#### Tutorials 
+## Tutorials 
 Please reach out to @imic or @hipsterusername on [Discord](https://discord.gg/ZmtBAhwWhy) to help create tutorials for InvokeAI.
 
 We hope you enjoy using our software as much as we enjoy creating it, and we hope that some of those of you who are reading this will elect to become part of our contributor community.
 
 
-### Contributors
+# Contributors
 
 This project is a combined effort of dedicated people from across the world. [Check out the list of all these amazing people](https://invoke-ai.github.io/InvokeAI/other/CONTRIBUTORS/). We thank them for their time, hard work and effort.
 
-### Code of Conduct
+# Code of Conduct
 
 The InvokeAI community is a welcoming place, and we want your help in maintaining that. Please review our [Code of Conduct](https://github.com/invoke-ai/InvokeAI/blob/main/CODE_OF_CONDUCT.md) to learn more - it's essential to maintaining a respectful and inclusive environment.
 
@@ -47,8 +49,7 @@ By making a contribution to this project, you certify that:
 This disclaimer is not a license and does not grant any rights or permissions. You must obtain necessary permissions and licenses, including from third parties, before contributing to this project.
 
 This disclaimer is provided "as is" without warranty of any kind, whether expressed or implied, including but not limited to the warranties of merchantability, fitness for a particular purpose, or non-infringement. In no event shall the authors or copyright holders be liable for any claim, damages, or other liability, whether in an action of contract, tort, or otherwise, arising from, out of, or in connection with the contribution or the use or other dealings in the contribution.
-
-### Support
+# Support
 
 For support, please use this repository's [GitHub Issues](https://github.com/invoke-ai/InvokeAI/issues), or join the [Discord](https://discord.gg/ZmtBAhwWhy).
 

docs/contributing/contribution_guides/development.md

@@ -4,14 +4,21 @@
 
 If you are looking to help to with a code contribution, InvokeAI uses several different technologies under the hood: Python (Pydantic, FastAPI, diffusers) and Typescript (React, Redux Toolkit, ChakraUI, Mantine, Konva). Familiarity with StableDiffusion and image generation concepts is helpful, but not essential. 
 
-For more information, please review our area specific documentation:
+
+## **Get Started**
+
+To get started, take a look at our [new contributors checklist](newContributorChecklist.md)
+
+Once you're setup, for more information, you can review the documentation specific to your area of interest:
 
 * #### [InvokeAI Architecure](../ARCHITECTURE.md)
 * #### [Frontend Documentation](development_guides/contributingToFrontend.md)
 * #### [Node Documentation](../INVOCATIONS.md)
 * #### [Local Development](../LOCAL_DEVELOPMENT.md)
 
-If you don't feel ready to make a code contribution yet, no problem! You can also help out in other ways, such as [documentation](documentation.md) or [translation](translation.md).
+
+
+If you don't feel ready to make a code contribution yet, no problem! You can also help out in other ways, such as [documentation](documentation.md), [translation](translation.md) or helping support other users and triage issues as they're reported in GitHub.
 
 There are two paths to making a development contribution: 
 
@@ -23,60 +30,10 @@ There are two paths to making a development contribution:
 
 ## Best Practices: 
 * Keep your pull requests small. Smaller pull requests are more likely to be accepted and merged
-* Comments! Commenting your code helps reviwers easily understand your contribution
+* Comments! Commenting your code helps reviewers easily understand your contribution
 * Use Python and Typescript’s typing systems, and consider using an editor with [LSP](https://microsoft.github.io/language-server-protocol/) support to streamline development
 * Make all communications public. This ensure knowledge is shared with the whole community
 
-## **How do I make a contribution?**
-
-Never made an open source contribution before? Wondering how contributions work in our project? Here's a quick rundown!
-
-Before starting these steps, ensure you have your local environment [configured for development](../LOCAL_DEVELOPMENT.md).
-
-1.  Find a [good first issue](https://github.com/invoke-ai/InvokeAI/contribute) that you are interested in addressing or a feature that you would like to add. Then, reach out to our team in the [#dev-chat](https://discord.com/channels/1020123559063990373/1049495067846524939) channel of the Discord to ensure you are  setup for success. 
-2. Fork the [InvokeAI](https://github.com/invoke-ai/InvokeAI) repository to your GitHub profile. This means that you will have a copy of the repository under **your-GitHub-username/InvokeAI**.
-3. Clone the repository to your local machine using:
-
-```bash
-git clone https://github.com/your-GitHub-username/InvokeAI.git
-```
-
-If you're unfamiliar with using Git through the commandline, [GitHub Desktop](https://desktop.github.com) is a easy-to-use alternative with a UI. You can do all the same steps listed here, but through the interface. 
-
-4. Create a new branch for your fix using:
-
-```bash
-git checkout -b branch-name-here
-```
-
-5. Make the appropriate changes for the issue you are trying to address or the feature that you want to add.
-6. Add the file contents of the changed files to the "snapshot" git uses to manage the state of the project, also known as the index:
-
-```bash
-git add insert-paths-of-changed-files-here
-```
-
-7. Store the contents of the index with a descriptive message.
-
-```bash
-git commit -m "Insert a short message of the changes made here"
-```
-
-8. Push the changes to the remote repository using
-
-```markdown
-git push origin branch-name-here
-```
-
-9. Submit a pull request to the **main** branch of the InvokeAI repository.
-10. Title the pull request with a short description of the changes made and the issue or bug number associated with your change. For example, you can title an issue like so "Added more log outputting to resolve #1234".
-11. In the description of the pull request, explain the changes that you made, any issues you think exist with the pull request you made, and any questions you have for the maintainer. It's OK if your pull request is not perfect (no pull request is), the reviewer will be able to help you fix any problems and improve it!
-12. Wait for the pull request to be reviewed by other collaborators.
-13. Make changes to the pull request if the reviewer(s) recommend them.
-14. Celebrate your success after your pull request is merged!
-
-If you’d like to learn more about contributing to Open Source projects, here is a [Getting Started Guide](https://opensource.com/article/19/7/create-pull-request-github). 
-
 ## **Where can I go for help?**
 
 If you need help, you can ask questions in the [#dev-chat](https://discord.com/channels/1020123559063990373/1049495067846524939) channel of the Discord.
@@ -85,6 +42,7 @@ For frontend related work, **@pyschedelicious** is the best person to reach out
 
 For backend related work, please reach out to **@blessedcoolant**, **@lstein**, **@StAlKeR7779** or **@pyschedelicious**.
 
+
 ## **What does the Code of Conduct mean for me?**
 
 Our [Code of Conduct](CODE_OF_CONDUCT.md)  means that you are responsible for treating everyone on the project with respect and courtesy regardless of their identity. If you are the victim of any inappropriate behavior or comments as described in our Code of Conduct, we are here for you and will do the best to ensure that the abuser is reprimanded appropriately, per our code.

docs/contributing/contribution_guides/newContributorChecklist.md

@@ -0,0 +1,68 @@
+# New Contributor Guide
+
+If you're a new contributor to InvokeAI or Open Source Projects, this is the guide for you. 
+
+## New Contributor Checklist
+- [x] Set up your local development environment & fork of InvokAI by following [the steps outlined here](../../installation/020_INSTALL_MANUAL.md#developer-install)
+- [x] Set up your local tooling with [this guide](InvokeAI/contributing/LOCAL_DEVELOPMENT/#developing-invokeai-in-vscode). Feel free to skip this step if you already have tooling you're comfortable with. 
+- [x] Familiarize yourself with [Git](https://www.atlassian.com/git) & our project structure by reading through the [development documentation](development.md)
+- [x] Join the [#dev-chat](https://discord.com/channels/1020123559063990373/1049495067846524939) channel of the Discord
+- [x] Choose an issue to work on! This can be achieved by asking in the #dev-chat channel, tackling a [good first issue](https://github.com/invoke-ai/InvokeAI/contribute) or finding an item on the [roadmap](https://github.com/orgs/invoke-ai/projects/7). If nothing in any of those places catches your eye, feel free to work on something of interest to you! 
+- [x] Make your first Pull Request with the guide below
+- [x] Happy development! Don't be afraid to ask for help - we're happy to help you contribute!
+
+
+## How do I make a contribution?
+
+Never made an open source contribution before? Wondering how contributions work in our project? Here's a quick rundown!
+
+Before starting these steps, ensure you have your local environment [configured for development](../LOCAL_DEVELOPMENT.md).
+
+1.  Find a [good first issue](https://github.com/invoke-ai/InvokeAI/contribute) that you are interested in addressing or a feature that you would like to add. Then, reach out to our team in the [#dev-chat](https://discord.com/channels/1020123559063990373/1049495067846524939) channel of the Discord to ensure you are  setup for success. 
+2. Fork the [InvokeAI](https://github.com/invoke-ai/InvokeAI) repository to your GitHub profile. This means that you will have a copy of the repository under **your-GitHub-username/InvokeAI**.
+3. Clone the repository to your local machine using:
+```bash
+git clone https://github.com/your-GitHub-username/InvokeAI.git
+```
+If you're unfamiliar with using Git through the commandline, [GitHub Desktop](https://desktop.github.com) is a easy-to-use alternative with a UI. You can do all the same steps listed here, but through the interface. 
+4. Create a new branch for your fix using:
+```bash
+git checkout -b branch-name-here
+```
+5. Make the appropriate changes for the issue you are trying to address or the feature that you want to add.
+6. Add the file contents of the changed files to the "snapshot" git uses to manage the state of the project, also known as the index:
+```bash
+git add -A
+```
+7. Store the contents of the index with a descriptive message.
+```bash
+git commit -m "Insert a short message of the changes made here"
+```
+8. Push the changes to the remote repository using
+```bash
+git push origin branch-name-here
+```
+9. Submit a pull request to the **main** branch of the InvokeAI repository. If you're not sure how to, [follow this guide](https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/proposing-changes-to-your-work-with-pull-requests/creating-a-pull-request)
+10. Title the pull request with a short description of the changes made and the issue or bug number associated with your change. For example, you can title an issue like so "Added more log outputting to resolve #1234".
+11. In the description of the pull request, explain the changes that you made, any issues you think exist with the pull request you made, and any questions you have for the maintainer. It's OK if your pull request is not perfect (no pull request is), the reviewer will be able to help you fix any problems and improve it!
+12. Wait for the pull request to be reviewed by other collaborators.
+13. Make changes to the pull request if the reviewer(s) recommend them.
+14. Celebrate your success after your pull request is merged!
+
+If you’d like to learn more about contributing to Open Source projects, here is a [Getting Started Guide](https://opensource.com/article/19/7/create-pull-request-github). 
+
+
+## Best Practices: 
+* Keep your pull requests small. Smaller pull requests are more likely to be accepted and merged
+* Comments! Commenting your code helps reviewers easily understand your contribution
+* Use Python and Typescript’s typing systems, and consider using an editor with [LSP](https://microsoft.github.io/language-server-protocol/) support to streamline development
+* Make all communications public. This ensure knowledge is shared with the whole community
+
+
+## **Where can I go for help?**
+
+If you need help, you can ask questions in the [#dev-chat](https://discord.com/channels/1020123559063990373/1049495067846524939) channel of the Discord.
+
+For frontend related work, **@pyschedelicious** is the best person to reach out to. 
+
+For backend related work, please reach out to **@blessedcoolant**, **@lstein**, **@StAlKeR7779** or **@pyschedelicious**.

docs/features/CONCEPTS.md

@@ -21,8 +21,8 @@ TI files that you'll encounter are `.pt` and `.bin` files, which are produced by
 different TI training packages. InvokeAI supports both formats, but its
 [built-in TI training system](TRAINING.md) produces `.pt`.
 
-The [Hugging Face company](https://huggingface.co/sd-concepts-library) has
-amassed a large ligrary of >800 community-contributed TI files covering a
+[Hugging Face](https://huggingface.co/sd-concepts-library) has
+amassed a large library of >800 community-contributed TI files covering a
 broad range of subjects and styles. You can also install your own or others' TI files 
 by placing them in the designated directory for the compatible model type
 

docs/features/CONTROLNET.md

@@ -104,7 +104,7 @@ The OpenPose control model allows for the identification of the general pose of
 
 The MediaPipe Face identification processor is able to clearly identify facial features in order to capture vivid expressions of human faces.
 
-**Tile (experimental)**:
+**Tile**:
 
 The Tile model fills out details in the image to match the image, rather than the prompt. The Tile Model is a versatile tool that offers a range of functionalities. Its primary capabilities can be boiled down to two main behaviors:
 
@@ -117,8 +117,6 @@ The Tile Model can be a powerful tool in your arsenal for enhancing image qualit
 
 With Pix2Pix, you can input an image into the controlnet, and then "instruct" the model to change it using your prompt. For example, you can say "Make it winter" to add more wintry elements to a scene.
 
-**Inpaint**: Coming Soon - Currently this model is available but not functional on the Canvas. An upcoming release will provide additional capabilities for using this model when inpainting.
-
 Each of these models can be adjusted and combined with other ControlNet models to achieve different results, giving you even more control over your image generation process.
 
 

docs/features/MODEL_MERGING.md

@@ -2,17 +2,50 @@
 title: Model Merging
 ---
 
-# :material-image-off: Model Merging
-
-## How to Merge Models
-
-As of version 2.3, InvokeAI comes with a script that allows you to
-merge two or three diffusers-type models into a new merged model. The
+InvokeAI provides the ability to merge two or three diffusers-type models into a new merged model. The
 resulting model will combine characteristics of the original, and can
 be used to teach an old model new tricks.
 
+## How to Merge Models
+
+Model Merging can be be done by navigating to the Model Manager and clicking the "Merge Models" tab. From there, you can select the models and settings you want to use to merge th models. 
+
+## Settings
+
+* Model Selection: there are three multiple choice fields that
+  display all the diffusers-style models that InvokeAI knows about.
+  If you do not see the model you are looking for, then it is probably
+  a legacy checkpoint model and needs to be converted using the
+  `invoke` command-line client and its `!optimize` command. You
+  must select at least two models to merge. The third can be left at
+  "None" if you desire.
+
+* Alpha: This is the ratio to use when combining models. It ranges
+  from 0 to 1. The higher the value, the more weight is given to the
+  2d and (optionally) 3d models. So if you have two models named "A"
+  and "B", an alpha value of 0.25 will give you a merged model that is
+  25% A and 75% B.
+
+* Interpolation Method: This is the method used to combine
+  weights. The options are "weighted_sum" (the default), "sigmoid",
+  "inv_sigmoid" and "add_difference". Each produces slightly different
+  results. When three models are in use, only "add_difference" is
+  available.
+
+* Save Location: The location you want the merged model to be saved in. Default is in the InvokeAI root folder
+
+* Name for merged model: This is the name for the new model. Please
+  use InvokeAI conventions - only alphanumeric letters and the
+  characters ".+-".
+
+* Ignore Mismatches / Force: Not all models are compatible with each other. The merge
+  script will check for compatibility and refuse to merge ones that
+  are incompatible. Set this checkbox to try merging anyway.
+
+
+
 You may run the merge script by starting the invoke launcher
-(`invoke.sh` or `invoke.bat`) and choosing the option for _merge
+(`invoke.sh` or `invoke.bat`) and choosing the option (4) for _merge
 models_. This will launch a text-based interactive user interface that
 prompts you to select the models to merge, how to merge them, and the
 merged model name.
@@ -40,34 +73,4 @@ this to get back.
 If the merge runs successfully, it will create a new diffusers model
 under the selected name and register it with InvokeAI.
 
-## The Settings
-
-* Model Selection -- there are three multiple choice fields that
-  display all the diffusers-style models that InvokeAI knows about.
-  If you do not see the model you are looking for, then it is probably
-  a legacy checkpoint model and needs to be converted using the
-  `invoke` command-line client and its `!optimize` command. You
-  must select at least two models to merge. The third can be left at
-  "None" if you desire.
-
-* Alpha -- This is the ratio to use when combining models. It ranges
-  from 0 to 1. The higher the value, the more weight is given to the
-  2d and (optionally) 3d models. So if you have two models named "A"
-  and "B", an alpha value of 0.25 will give you a merged model that is
-  25% A and 75% B.
-
-* Interpolation Method -- This is the method used to combine
-  weights. The options are "weighted_sum" (the default), "sigmoid",
-  "inv_sigmoid" and "add_difference". Each produces slightly different
-  results. When three models are in use, only "add_difference" is
-  available. (TODO: cite a reference that describes what these
-  interpolation methods actually do and how to decide among them).
-
-* Force -- Not all models are compatible with each other. The merge
-  script will check for compatibility and refuse to merge ones that
-  are incompatible. Set this checkbox to try merging anyway.
-
-* Name for merged model - This is the name for the new model. Please
-  use InvokeAI conventions - only alphanumeric letters and the
-  characters ".+-".
 

docs/features/PROMPTS.md

@@ -142,7 +142,7 @@ Prompt2prompt `.swap()` is not compatible with xformers, which will be temporari
 The `prompt2prompt` code is based off
 [bloc97's colab](https://github.com/bloc97/CrossAttentionControl).
 
-### Escaping parentheses () and speech marks ""
+### Escaping parentheses and speech marks 
 
 If the model you are using has parentheses () or speech marks "" as part of its
 syntax, you will need to "escape" these using a backslash, so that`(my_keyword)`
@@ -246,7 +246,7 @@ To create a Dynamic Prompt, follow these steps:
     Within the braces, separate each option using a vertical bar |.
     If you want to include multiple options from a single group, prefix with the desired number and $$.
 
-For instance: A {house|apartment|lodge|cottage} in {summer|winter|autumn|spring} designed in {2$$style1|style2|style3}.
+For instance: A {house|apartment|lodge|cottage} in {summer|winter|autumn|spring} designed in {style1|style2|style3}.
 ### How Dynamic Prompts Work
 
 Once a Dynamic Prompt is configured, the system generates an array of combinations using the options provided. Each group of options in curly braces is treated independently, with the system selecting one option from each group. For a prefixed set (e.g., 2$$), the system will select two distinct options.
@@ -273,3 +273,36 @@ Below are some useful strategies for creating Dynamic Prompts:
     Experiment with different quantities for the prefix. For example, 3$$ will select three distinct options.
     Be aware of coherence in your prompts. Although the system can generate all possible combinations, not all may semantically make sense. Therefore, carefully choose the options for each group.
     Always review and fine-tune the generated prompts as needed. While Dynamic Prompts can help you generate a multitude of combinations, the final polishing and refining remain in your hands.
+
+
+## SDXL Prompting
+
+Prompting with SDXL is slightly different than prompting with SD1.5 or SD2.1 models - SDXL expects a prompt _and_ a style. 
+
+
+### Prompting 
+<figure markdown>
+
+![SDXL prompt boxes in InvokeAI](../assets/prompt_syntax/sdxl-prompt.png)
+
+</figure>
+
+In the prompt box, enter a positive or negative prompt as you normally would. 
+
+For the style box you can enter a style that you want the image to be generated in. You can use styles from this example list, or any other style you wish: anime, photographic, digital art, comic book, fantasy art, analog film, neon punk, isometric, low poly, origami, line art, cinematic, 3d model, pixel art, etc.
+
+
+### Concatenated Prompts
+
+
+InvokeAI also has the option to concatenate the prompt and style inputs, by pressing the "link" button in the Positive Prompt box. 
+
+This concatenates the prompt & style inputs, and passes the joined prompt and style to the SDXL model. 
+![SDXL concatenated prompt boxes in InvokeAI](../assets/prompt_syntax/sdxl-prompt-concatenated.png)
+
+
+
+
+
+
+

docs/features/TRAINING.md

@@ -43,27 +43,22 @@ into the directory
 
 InvokeAI 2.3 and higher comes with a text console-based training front
 end. From within the `invoke.sh`/`invoke.bat` Invoke launcher script,
-start the front end by selecting choice (3):
+start training tool selecting choice (3):
 
 ```sh
-Do you want to generate images using the
-1: Browser-based UI
-2: Command-line interface
-3: Run textual inversion training
-4: Merge models (diffusers type only)
-5: Download and install models
-6: Change InvokeAI startup options
-7: Re-run the configure script to fix a broken install
-8: Open the developer console
-9: Update InvokeAI
-10: Command-line help
-Q: Quit
-
-Please enter 1-10, Q: [1] 
+1 "Generate images with a browser-based interface"
+2 "Explore InvokeAI nodes using a command-line interface"
+3 "Textual inversion training"
+4 "Merge models (diffusers type only)"
+5 "Download and install models"
+6 "Change InvokeAI startup options"
+7 "Re-run the configure script to fix a broken install or to complete a major upgrade"
+8 "Open the developer console"
+9 "Update InvokeAI"
 ```
 
-From the command line, with the InvokeAI virtual environment active,
-you can launch the front end with the command `invokeai-ti --gui`.
+Alternatively, you can select option (8) or from the command line, with the InvokeAI virtual environment active,
+you can then launch the front end with the command `invokeai-ti --gui`.
 
 This will launch a text-based front end that will look like this:
 

docs/index.md

@@ -15,7 +15,8 @@ title: Home
 <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/@fortawesome/fontawesome-free@6.2.1/css/fontawesome.min.css">
 <style>
     .button {
-      width: 300px;
+      width: 100%;
+      max-width: 100%;
       height: 50px;
       background-color: #448AFF;
       color: #fff;
@@ -27,8 +28,9 @@ title: Home
 
     .button-container {
       display: grid;
-      grid-template-columns: repeat(3, 300px);
+      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
       gap: 20px;
+      justify-content: center;
     }
 
     .button:hover {

docs/installation/020_INSTALL_MANUAL.md

@@ -287,7 +287,7 @@ manager, please follow these steps:
     Leave off the `--gui` option to run the script using command-line arguments. Pass the `--help` argument
     to get usage instructions.
 
-### Developer Install
+## Developer Install
 
 If you have an interest in how InvokeAI works, or you would like to
 add features or bugfixes, you are encouraged to install the source
@@ -296,13 +296,14 @@ code for InvokeAI. For this to work, you will need to install the
 on your system, please see the [Git Installation
 Guide](https://github.com/git-guides/install-git)
 
+1. Create a fork of the InvokeAI repository through the GitHub UI or [this link](https://github.com/invoke-ai/InvokeAI/fork) 
 1. From the command line, run this command:
    ```bash
-   git clone https://github.com/invoke-ai/InvokeAI.git
+   git clone https://github.com/<your_github_username>/InvokeAI.git
    ```
 
     This will create a directory named `InvokeAI` and populate it with the
-    full source code from the InvokeAI repository.
+    full source code from your fork of the InvokeAI repository.
 
 2. Activate the InvokeAI virtual environment as per step (4) of the manual
 installation protocol (important!)

docs/installation/030_INSTALL_CUDA_AND_ROCM.md

@@ -57,6 +57,30 @@ familiar with containerization technologies such as Docker.
 For downloads and instructions, visit the [NVIDIA CUDA Container
 Runtime Site](https://developer.nvidia.com/nvidia-container-runtime)
 
+### cuDNN Installation for 40/30 Series Optimization* (Optional)
+
+1. Find the InvokeAI folder
+2. Click on .venv folder - e.g., YourInvokeFolderHere\\.venv
+3. Click on Lib folder - e.g., YourInvokeFolderHere\\.venv\Lib
+4. Click on site-packages folder - e.g., YourInvokeFolderHere\\.venv\Lib\site-packages
+5. Click on Torch directory - e.g., YourInvokeFolderHere\InvokeAI\\.venv\Lib\site-packages\torch
+6. Click on the lib folder - e.g., YourInvokeFolderHere\\.venv\Lib\site-packages\torch\lib
+7. Copy everything inside the folder and save it elsewhere as a backup.
+8. Go to __https://developer.nvidia.com/cudnn__
+9. Login or create an Account. 
+10. Choose the newer version of cuDNN. **Note:** 
+There are two versions, 11.x or 12.x for the differents architectures(Turing,Maxwell Etc...) of GPUs.
+You can find which version you should download from [this link](https://docs.nvidia.com/deeplearning/cudnn/support-matrix/index.html).
+13. Download the latest version and extract it from the download location
+14. Find the bin folder E\cudnn-windows-x86_64-__Whatever Version__\bin
+15. Copy and paste the .dll files into YourInvokeFolderHere\\.venv\Lib\site-packages\torch\lib **Make sure to copy, and not move the files**
+16. If prompted, replace any existing files 
+
+**Notes:** 
+* If no change is seen or any issues are encountered, follow the same steps as above and paste the torch/lib backup folder you made earlier and replace it. If you didn't make a backup, you can also uninstall and reinstall torch through the command line to repair this folder. 
+* This optimization is  intended for the newer version of graphics card (40/30 series) but results have been seen with older graphics card.
+
+
 ### Torch Installation
 
 When installing torch and torchvision manually with `pip`, remember to provide

docs/installation/INSTALLATION.md

@@ -17,14 +17,32 @@ This fork is supported across Linux, Windows and Macintosh. Linux users can use
 either an Nvidia-based card (with CUDA support) or an AMD card (using the ROCm
 driver).
 
-### [Installation Getting Started Guide](installation)
-#### **[Automated Installer](010_INSTALL_AUTOMATED.md)**
+
+## **[Automated Installer](010_INSTALL_AUTOMATED.md)**
 ✅ This is the recommended installation method for first-time users. 
-#### [Manual Installation](020_INSTALL_MANUAL.md)
-This method is recommended for experienced users and developers
-#### [Docker Installation](040_INSTALL_DOCKER.md)
-This method is recommended for those familiar with running Docker containers
-### Other Installation Guides
+
+  This is a script that will install all of InvokeAI's essential
+  third party libraries and InvokeAI itself. It includes access to a
+  "developer console" which will help us debug problems with you and
+  give you to access experimental features.
+
+## **[Manual Installation](020_INSTALL_MANUAL.md)**
+This method is recommended for experienced users and developers.
+
+  In this method you will manually run the commands needed to install
+  InvokeAI and its dependencies. We offer two recipes: one suited to
+  those who prefer the `conda` tool, and one suited to those who prefer
+  `pip` and Python virtual environments. In our hands the pip install
+  is faster and more reliable, but your mileage may vary.
+  Note that the conda installation method is currently deprecated and
+  will not be supported at some point in the future.
+
+## **[Docker Installation](040_INSTALL_DOCKER.md)**
+This method is recommended for those familiar with running Docker containers.
+
+We offer a method for creating Docker containers containing InvokeAI and its dependencies. This method is recommended for individuals with experience with Docker containers and understand the pluses and minuses of a container-based install.
+
+## Other Installation Guides
   - [PyPatchMatch](060_INSTALL_PATCHMATCH.md)
   - [XFormers](070_INSTALL_XFORMERS.md)
   - [CUDA and ROCm Drivers](030_INSTALL_CUDA_AND_ROCM.md)
@@ -63,43 +81,3 @@ images in full-precision mode:
 - GTX 1650 series cards
 - GTX 1660 series cards
 
-## Installation options
-
-1. [Automated Installer](010_INSTALL_AUTOMATED.md)
-
-    This is a script that will install all of InvokeAI's essential
-    third party libraries and InvokeAI itself. It includes access to a
-    "developer console" which will help us debug problems with you and
-    give you to access experimental features.
-
-
-    ✅ This is the recommended option for first time users. 
-
-2. [Manual Installation](020_INSTALL_MANUAL.md)
-
-    In this method you will manually run the commands needed to install
-    InvokeAI and its dependencies. We offer two recipes: one suited to
-    those who prefer the `conda` tool, and one suited to those who prefer
-    `pip` and Python virtual environments. In our hands the pip install
-    is faster and more reliable, but your mileage may vary.
-    Note that the conda installation method is currently deprecated and
-    will not be supported at some point in the future.
-
-    This method is recommended for users who have previously used `conda`
-    or `pip` in the past, developers, and anyone who wishes to remain on
-    the cutting edge of future InvokeAI development and is willing to put
-    up with occasional glitches and breakage.
-
-3. [Docker Installation](040_INSTALL_DOCKER.md)
-
-    We also offer a method for creating Docker containers containing
-    InvokeAI and its dependencies. This method is recommended for
-    individuals with experience with Docker containers and understand
-    the pluses and minuses of a container-based install.
-
-## Quick Guides
-
-* [Installing CUDA and ROCm Drivers](./030_INSTALL_CUDA_AND_ROCM.md)
-* [Installing XFormers](./070_INSTALL_XFORMERS.md)
-* [Installing PyPatchMatch](./060_INSTALL_PATCHMATCH.md)
-* [Installing New Models](./050_INSTALLING_MODELS.md)

docs/nodes/NODES.md

@@ -1,11 +1,30 @@
-# Using the Node Editor
+# Using the Workflow Editor
 
-The nodes editor is a blank canvas allowing for the use of individual functions and image transformations to control the image generation workflow. Nodes take in inputs on the left side of the node, and return an output on the right side of the node. A node graph is composed of multiple nodes that are connected together to create a workflow. Nodes' inputs and outputs are connected by dragging connectors from node to node. Inputs and outputs are color coded for ease of use.
+The workflow editor is a blank canvas allowing for the use of individual functions and image transformations to control the image generation workflow. Nodes take in inputs on the left side of the node, and return an output on the right side of the node. A node graph is composed of multiple nodes that are connected together to create a workflow. Nodes' inputs and outputs are connected by dragging connectors from node to node. Inputs and outputs are color coded for ease of use.
 
-To better understand how nodes are used, think of how an electric power bar works. It takes in one input (electricity from a wall outlet) and passes it to multiple devices through multiple outputs. Similarly, a node could have multiple inputs and outputs functioning at the same (or different) time, but all node outputs pass information onward like a power bar passes electricity. Not all outputs are compatible with all inputs, however - Each node has different constraints on how it is expecting to input/output information. In general, node outputs are colour-coded to match compatible inputs of other nodes.
+If you're not familiar with Diffusion, take a look at our [Diffusion Overview.](../help/diffusion.md) Understanding how diffusion works will enable you to more easily use the Workflow Editor and build workflows to suit your needs.
 
+## UI Features
+
+### Linear View
+The Workflow Editor allows you to create a UI for your workflow, to make it easier to iterate on your generations. 
+
+To add an input to the Linear UI, right click on the input and select "Add to Linear View".
+
+The Linear UI View will also be part of the saved workflow, allowing you share workflows and enable other to use them, regardless of complexity. 
+
+![linearview](../assets/nodes/linearview.png)
+
+### Renaming Fields and Nodes
+Any node or input field can be renamed in the workflow editor. If the input field you have renamed has been added to the Linear View, the changed name will be reflected in the Linear View and the node. 
+
+### Managing Nodes
+
+* Ctrl+C to copy a node
+* Ctrl+V to paste a node
+* Backspace/Delete to delete a node
+* Shift+Click to drag and select multiple nodes 
 
-If you're not familiar with Diffusion, take a look at our [Diffusion Overview.](../help/diffusion.md) Understanding how diffusion works will enable you to more easily use the Nodes Editor and build workflows to suit your needs.
 
 ## Important Concepts 
 
@@ -37,7 +56,7 @@ It is common to want to use both the same seed (for continuity) and random seeds
 
 ### ControlNet
 
-The ControlNet node outputs a Control, which can be provided as input to non-image *ToLatents nodes. Depending on the type of ControlNet desired, ControlNet nodes usually require an image processor node, such as a Canny Processor or Depth Processor, which prepares an input image for use with ControlNet.
+The ControlNet node outputs a Control, which can be provided as input to a Denoise Latents node. Depending on the type of ControlNet desired, ControlNet nodes usually require an image processor node, such as a Canny Processor or Depth Processor, which prepares an input image for use with ControlNet.
 
 ![groupscontrol](../assets/nodes/groupscontrol.png)
 
@@ -59,10 +78,9 @@ Iteration is a common concept in any processing, and means to repeat a process w
 
 ![groupsiterate](../assets/nodes/groupsiterate.png)
 
-### Multiple Image Generation + Random Seeds
+### Batch / Multiple Image Generation + Random Seeds
 
-Multiple image generation in the node editor is done using the RandomRange node. In this case, the 'Size' field represents the number of images to generate. As RandomRange produces a collection of integers, we need to add the Iterate node to iterate through the collection. 
-
-To control seeds across generations takes some care. The first row in the screenshot will generate multiple images with different seeds, but using the same RandomRange parameters across invocations will result in the same group of random seeds being used across the images, producing repeatable results. In the second row, adding the RandomInt node as input to RandomRange's 'Seed' edge point will ensure that seeds are varied across all images across invocations, producing varied results.
+Batch or multiple image generation in the workflow editor is done using the RandomRange node. In this case, the 'Size' field represents the number of images to generate, meaning this example will generate 4 images. As RandomRange produces a collection of integers, we need to add the Iterate node to iterate through the collection. This noise can then be fed to the Denoise Latents node for it to iterate through the denoising process with the different seeds provided.
 
 ![groupsmultigenseeding](../assets/nodes/groupsmultigenseeding.png)
+

docs/nodes/communityNodes.md

@@ -4,9 +4,9 @@ These are nodes that have been developed by the community, for the community. If
 
 If you'd like to submit a node for the community, please refer to the [node creation overview](contributingNodes.md).
 
-To download a node, simply download the `.py` node file from the link and add it to the `invokeai/app/invocations` folder in your Invoke AI install location. Along with the node, an example node graph should be provided to help you get started with the node. 
+To download a node, simply download the `.py` node file from the link and add it to the `invokeai/app/invocations` folder in your Invoke AI install location. If you used the automated installation, this can be found inside the `.venv` folder. Along with the node, an example node graph should be provided to help you get started with the node. 
 
-To use a community node graph, download the the `.json` node graph file and load it into Invoke AI via the **Load Nodes** button on the Node Editor. 
+To use a community workflow, download the the `.json` node graph file and load it into Invoke AI via the **Load Workflow** button in the Workflow Editor. 
 
 ## Community Nodes
 

docs/nodes/contributingNodes.md

@@ -4,10 +4,10 @@ To learn about the specifics of creating a new node, please visit our [Node crea
 
 Once you’ve created a node and confirmed that it behaves as expected locally, follow these steps: 
 
-- Make sure the node is contained in a new Python (.py) file 
-- Submit a pull request with a link to your node in GitHub against the `nodes` branch to add the node to the [Community Nodes](Community Nodes) list
-    - Make sure you are following the template below and have provided all relevant details about the node and what it does.
-- A maintainer will review the pull request and node. If the node is aligned with the direction of the project, you might be asked for permission to include it in the core project.
+- Make sure the node is contained in a new Python (.py) file. Preferrably, the node is in a repo with a README detaling the nodes usage & examples to help others more easily use your node.
+- Submit a pull request with a link to your node(s) repo in GitHub against the `main` branch to add the node to the [Community Nodes](communityNodes.md) list
+    - Make sure you are following the template below and have provided all relevant details about the node and what it does. Example output images and workflows are very helpful for other users looking to use your node.
+- A maintainer will review the pull request and node. If the node is aligned with the direction of the project, you may be asked for permission to include it in the core project.
 
 ### Community Node Template
 

docs/nodes/defaultNodes.md

@@ -22,6 +22,7 @@ The table below contains a list of the default nodes shipped with InvokeAI and t
 |Divide Integers 			| Divides two numbers|
 |Dynamic Prompt 			| Parses a prompt using adieyal/dynamicprompts' random or combinatorial generator|
 |Upscale (RealESRGAN) 			| Upscales an image using RealESRGAN.|
+|Float Math             | Perform basic math operations on two floats|
 |Float Primitive Collection 			| A collection of float primitive values|
 |Float Primitive 			| A float primitive value|
 |Float Range 			| Creates a range|
@@ -29,6 +30,7 @@ The table below contains a list of the default nodes shipped with InvokeAI and t
 |Blur Image 			| Blurs an image|
 |Extract Image Channel 			| Gets a channel from an image.|
 |Image Primitive Collection 			| A collection of image primitive values|
+|Integer Math           | Perform basic math operations on two integers|
 |Convert Image Mode 			| Converts an image to a different mode.|
 |Crop Image 			| Crops an image to a specified box. The box can be outside of the image.|
 |Image Hue Adjustment 			| Adjusts the Hue of an image.|
@@ -42,6 +44,8 @@ The table below contains a list of the default nodes shipped with InvokeAI and t
 |Paste Image 			| Pastes an image into another image.|
 |ImageProcessor 			| Base class for invocations that preprocess images for ControlNet|
 |Resize Image 			| Resizes an image to specific dimensions|
+|Round Float            | Rounds a float to a specified number of decimal places|
+|Float to Integer       | Converts a float to an integer. Optionally rounds to an even multiple of a input number.|
 |Scale Image 			| Scales an image by a factor|
 |Image to Latents 			| Encodes an image into latents.|
 |Add Invisible Watermark 			| Add an invisible watermark to an image|

docs/nodes/exampleWorkflows.md

@@ -1,15 +1,13 @@
 # Example Workflows
 
-TODO: Will update once uploading workflows is available.
+We've curated some example workflows for you to get started with Workflows in InvokeAI
 
-## Text2Image
+To use them, right click on your desired workflow, press "Download Linked File". You can then use the "Load Workflow" functionality in InvokeAI to load the workflow and start generating images!
 
-## Image2Image
+If you're interested in finding more workflows, checkout the [#share-your-workflows](https://discord.com/channels/1020123559063990373/1130291608097661000) channel in the InvokeAI Discord.
 
-## ControlNet
+* [SD1.5 / SD2 Text to Image](https://github.com/invoke-ai/InvokeAI/blob/main/docs/workflows/Text_to_Image.json)
+* [SDXL Text to Image](https://github.com/invoke-ai/InvokeAI/blob/main/docs/workflows/SDXL_Text_to_Image.json)
+* [SDXL (with Refiner) Text to Image](https://github.com/invoke-ai/InvokeAI/blob/main/docs/workflows/SDXL_Text_to_Image.json) 
+* [Tiled Upscaling with ControlNet](https://github.com/invoke-ai/InvokeAI/blob/main/docs/workflows/ESRGAN_img2img_upscale w_Canny_ControlNet.json)ß
 
-## Upscaling
-
-## Inpainting / Outpainting
-
-## LoRAs

docs/workflows/SDXL_Text_to_Image.json

@@ -0,0 +1,735 @@
+{
+  "name": "SDXL Text to Image",
+  "author": "InvokeAI",
+  "description": "Sample text to image workflow for SDXL",
+  "version": "1.0.1",
+  "contact": "invoke@invoke.ai",
+  "tags": "text2image, SDXL, default",
+  "notes": "",
+  "exposedFields": [
+    {
+      "nodeId": "30d3289c-773c-4152-a9d2-bd8a99c8fd22",
+      "fieldName": "model"
+    },
+    {
+      "nodeId": "faf965a4-7530-427b-b1f3-4ba6505c2a08",
+      "fieldName": "prompt"
+    },
+    {
+      "nodeId": "faf965a4-7530-427b-b1f3-4ba6505c2a08",
+      "fieldName": "style"
+    },
+    {
+      "nodeId": "3193ad09-a7c2-4bf4-a3a9-1c61cc33a204",
+      "fieldName": "prompt"
+    },
+    {
+      "nodeId": "3193ad09-a7c2-4bf4-a3a9-1c61cc33a204",
+      "fieldName": "style"
+    },
+    {
+      "nodeId": "87ee6243-fb0d-4f77-ad5f-56591659339e",
+      "fieldName": "steps"
+    }
+  ],
+  "meta": {
+    "version": "1.0.0"
+  },
+  "nodes": [
+    {
+      "id": "3193ad09-a7c2-4bf4-a3a9-1c61cc33a204",
+      "type": "invocation",
+      "data": {
+        "version": "1.0.0",
+        "id": "3193ad09-a7c2-4bf4-a3a9-1c61cc33a204",
+        "type": "sdxl_compel_prompt",
+        "inputs": {
+          "prompt": {
+            "id": "5a6889e6-95cb-462f-8f4a-6b93ae7afaec",
+            "name": "prompt",
+            "type": "string",
+            "fieldKind": "input",
+            "label": "Negative Prompt",
+            "value": ""
+          },
+          "style": {
+            "id": "f240d0e6-3a1c-4320-af23-20ebb707c276",
+            "name": "style",
+            "type": "string",
+            "fieldKind": "input",
+            "label": "Negative Style",
+            "value": ""
+          },
+          "original_width": {
+            "id": "05af07b0-99a0-4a68-8ad2-697bbdb7fc7e",
+            "name": "original_width",
+            "type": "integer",
+            "fieldKind": "input",
+            "label": "",
+            "value": 1024
+          },
+          "original_height": {
+            "id": "2c771996-a998-43b7-9dd3-3792664d4e5b",
+            "name": "original_height",
+            "type": "integer",
+            "fieldKind": "input",
+            "label": "",
+            "value": 1024
+          },
+          "crop_top": {
+            "id": "66519dca-a151-4e3e-ae1f-88f1f9877bde",
+            "name": "crop_top",
+            "type": "integer",
+            "fieldKind": "input",
+            "label": "",
+            "value": 0
+          },
+          "crop_left": {
+            "id": "349cf2e9-f3d0-4e16-9ae2-7097d25b6a51",
+            "name": "crop_left",
+            "type": "integer",
+            "fieldKind": "input",
+            "label": "",
+            "value": 0
+          },
+          "target_width": {
+            "id": "44499347-7bd6-4a73-99d6-5a982786db05",
+            "name": "target_width",
+            "type": "integer",
+            "fieldKind": "input",
+            "label": "",
+            "value": 1024
+          },
+          "target_height": {
+            "id": "fda359b0-ab80-4f3c-805b-c9f61319d7d2",
+            "name": "target_height",
+            "type": "integer",
+            "fieldKind": "input",
+            "label": "",
+            "value": 1024
+          },
+          "clip": {
+            "id": "b447adaf-a649-4a76-a827-046a9fc8d89b",
+            "name": "clip",
+            "type": "ClipField",
+            "fieldKind": "input",
+            "label": ""
+          },
+          "clip2": {
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+      "target": "87ee6243-fb0d-4f77-ad5f-56591659339e",
+      "targetHandle": "noise",
+      "id": "reactflow__edge-55705012-79b9-4aac-9f26-c0b10309785bnoise-87ee6243-fb0d-4f77-ad5f-56591659339enoise",
+      "type": "default"
+    }
+  ]
+}

docs/workflows/Text_to_Image.json

@@ -0,0 +1,573 @@
+{
+  "name": "Text to Image",
+  "author": "InvokeAI",
+  "description": "Sample text to image workflow for Stable Diffusion 1.5/2",
+  "version": "1.0.1",
+  "contact": "invoke@invoke.ai",
+  "tags": "text2image, SD1.5, SD2, default",
+  "notes": "",
+  "exposedFields": [
+    {
+      "nodeId": "c8d55139-f380-4695-b7f2-8b3d1e1e3db8",
+      "fieldName": "model"
+    },
+    {
+      "nodeId": "7d8bf987-284f-413a-b2fd-d825445a5d6c",
+      "fieldName": "prompt"
+    },
+    {
+      "nodeId": "93dc02a4-d05b-48ed-b99c-c9b616af3402",
+      "fieldName": "prompt"
+    },
+    {
+      "nodeId": "75899702-fa44-46d2-b2d5-3e17f234c3e7",
+      "fieldName": "steps"
+    }
+  ],
+  "meta": {
+    "version": "1.0.0"
+  },
+  "nodes": [
+    {
+      "id": "93dc02a4-d05b-48ed-b99c-c9b616af3402",
+      "type": "invocation",
+      "data": {
+        "version": "1.0.0",
+        "id": "93dc02a4-d05b-48ed-b99c-c9b616af3402",
+        "type": "compel",
+        "inputs": {
+          "prompt": {
+            "id": "7739aff6-26cb-4016-8897-5a1fb2305e4e",
+            "name": "prompt",
+            "type": "string",
+            "fieldKind": "input",
+            "label": "Negative Prompt",
+            "value": ""
+          },
+          "clip": {
+            "id": "48d23dce-a6ae-472a-9f8c-22a714ea5ce0",
+            "name": "clip",
+            "type": "ClipField",
+            "fieldKind": "input",
+            "label": ""
+          }
+        },
+        "outputs": {
+          "conditioning": {
+            "id": "37cf3a9d-f6b7-4b64-8ff6-2558c5ecc447",
+            "name": "conditioning",
+            "type": "ConditioningField",
+            "fieldKind": "output"
+          }
+        },
+        "label": "Negative Compel Prompt",
+        "isOpen": true,
+        "notes": "",
+        "embedWorkflow": false,
+        "isIntermediate": true
+      },
+      "width": 320,
+      "height": 235,
+      "position": {
+        "x": 1400,
+        "y": -75
+      }
+    },
+    {
+      "id": "55705012-79b9-4aac-9f26-c0b10309785b",
+      "type": "invocation",
+      "data": {
+        "version": "1.0.0",
+        "id": "55705012-79b9-4aac-9f26-c0b10309785b",
+        "type": "noise",
+        "inputs": {
+          "seed": {
+            "id": "6431737c-918a-425d-a3b4-5d57e2f35d4d",
+            "name": "seed",
+            "type": "integer",
+            "fieldKind": "input",
+            "label": "",
+            "value": 0
+          },
+          "width": {
+            "id": "38fc5b66-fe6e-47c8-bba9-daf58e454ed7",
+            "name": "width",
+            "type": "integer",
+            "fieldKind": "input",
+            "label": "",
+            "value": 512
+          },
+          "height": {
+            "id": "16298330-e2bf-4872-a514-d6923df53cbb",
+            "name": "height",
+            "type": "integer",
+            "fieldKind": "input",
+            "label": "",
+            "value": 512
+          },
+          "use_cpu": {
+            "id": "c7c436d3-7a7a-4e76-91e4-c6deb271623c",
+            "name": "use_cpu",
+            "type": "boolean",
+            "fieldKind": "input",
+            "label": "",
+            "value": true
+          }
+        },
+        "outputs": {
+          "noise": {
+            "id": "50f650dc-0184-4e23-a927-0497a96fe954",
+            "name": "noise",
+            "type": "LatentsField",
+            "fieldKind": "output"
+          },
+          "width": {
+            "id": "bb8a452b-133d-42d1-ae4a-3843d7e4109a",
+            "name": "width",
+            "type": "integer",
+            "fieldKind": "output"
+          },
+          "height": {
+            "id": "35cfaa12-3b8b-4b7a-a884-327ff3abddd9",
+            "name": "height",
+            "type": "integer",
+            "fieldKind": "output"
+          }
+        },
+        "label": "",
+        "isOpen": true,
+        "notes": "",
+        "embedWorkflow": false,
+        "isIntermediate": true
+      },
+      "width": 320,
+      "height": 364,
+      "position": {
+        "x": 1000,
+        "y": 350
+      }
+    },
+    {
+      "id": "dbcd2f98-d809-48c8-bf64-2635f88a2fe9",
+      "type": "invocation",
+      "data": {
+        "version": "1.0.0",
+        "id": "dbcd2f98-d809-48c8-bf64-2635f88a2fe9",
+        "type": "l2i",
+        "inputs": {
+          "tiled": {
+            "id": "24f5bc7b-f6a1-425d-8ab1-f50b4db5d0df",
+            "name": "tiled",
+            "type": "boolean",
+            "fieldKind": "input",
+            "label": "",
+            "value": false
+          },
+          "fp32": {
+            "id": "b146d873-ffb9-4767-986a-5360504841a2",
+            "name": "fp32",
+            "type": "boolean",
+            "fieldKind": "input",
+            "label": "",
+            "value": false
+          },
+          "latents": {
+            "id": "65441abd-7713-4b00-9d8d-3771404002e8",
+            "name": "latents",
+            "type": "LatentsField",
+            "fieldKind": "input",
+            "label": ""
+          },
+          "vae": {
+            "id": "a478b833-6e13-4611-9a10-842c89603c74",
+            "name": "vae",
+            "type": "VaeField",
+            "fieldKind": "input",
+            "label": ""
+          }
+        },
+        "outputs": {
+          "image": {
+            "id": "c87ae925-f858-417a-8940-8708ba9b4b53",
+            "name": "image",
+            "type": "ImageField",
+            "fieldKind": "output"
+          },
+          "width": {
+            "id": "4bcb8512-b5a1-45f1-9e52-6e92849f9d6c",
+            "name": "width",
+            "type": "integer",
+            "fieldKind": "output"
+          },
+          "height": {
+            "id": "23e41c00-a354-48e8-8f59-5875679c27ab",
+            "name": "height",
+            "type": "integer",
+            "fieldKind": "output"
+          }
+        },
+        "label": "",
+        "isOpen": true,
+        "notes": "",
+        "embedWorkflow": true,
+        "isIntermediate": false
+      },
+      "width": 320,
+      "height": 266,
+      "position": {
+        "x": 1800,
+        "y": 200
+      }
+    },
+    {
+      "id": "c8d55139-f380-4695-b7f2-8b3d1e1e3db8",
+      "type": "invocation",
+      "data": {
+        "version": "1.0.0",
+        "id": "c8d55139-f380-4695-b7f2-8b3d1e1e3db8",
+        "type": "main_model_loader",
+        "inputs": {
+          "model": {
+            "id": "993eabd2-40fd-44fe-bce7-5d0c7075ddab",
+            "name": "model",
+            "type": "MainModelField",
+            "fieldKind": "input",
+            "label": "",
+            "value": {
+              "model_name": "stable-diffusion-v1-5",
+              "base_model": "sd-1",
+              "model_type": "main"
+            }
+          }
+        },
+        "outputs": {
+          "unet": {
+            "id": "5c18c9db-328d-46d0-8cb9-143391c410be",
+            "name": "unet",
+            "type": "UNetField",
+            "fieldKind": "output"
+          },
+          "clip": {
+            "id": "6effcac0-ec2f-4bf5-a49e-a2c29cf921f4",
+            "name": "clip",
+            "type": "ClipField",
+            "fieldKind": "output"
+          },
+          "vae": {
+            "id": "57683ba3-f5f5-4f58-b9a2-4b83dacad4a1",
+            "name": "vae",
+            "type": "VaeField",
+            "fieldKind": "output"
+          }
+        },
+        "label": "",
+        "isOpen": false,
+        "notes": "",
+        "embedWorkflow": false,
+        "isIntermediate": true
+      },
+      "width": 320,
+      "height": 32,
+      "position": {
+        "x": 1000,
+        "y": 200
+      }
+    },
+    {
+      "id": "7d8bf987-284f-413a-b2fd-d825445a5d6c",
+      "type": "invocation",
+      "data": {
+        "version": "1.0.0",
+        "id": "7d8bf987-284f-413a-b2fd-d825445a5d6c",
+        "type": "compel",
+        "inputs": {
+          "prompt": {
+            "id": "7739aff6-26cb-4016-8897-5a1fb2305e4e",
+            "name": "prompt",
+            "type": "string",
+            "fieldKind": "input",
+            "label": "Positive Prompt",
+            "value": ""
+          },
+          "clip": {
+            "id": "48d23dce-a6ae-472a-9f8c-22a714ea5ce0",
+            "name": "clip",
+            "type": "ClipField",
+            "fieldKind": "input",
+            "label": ""
+          }
+        },
+        "outputs": {
+          "conditioning": {
+            "id": "37cf3a9d-f6b7-4b64-8ff6-2558c5ecc447",
+            "name": "conditioning",
+            "type": "ConditioningField",
+            "fieldKind": "output"
+          }
+        },
+        "label": "Positive Compel Prompt",
+        "isOpen": true,
+        "notes": "",
+        "embedWorkflow": false,
+        "isIntermediate": true
+      },
+      "width": 320,
+      "height": 235,
+      "position": {
+        "x": 1000,
+        "y": -75
+      }
+    },
+    {
+      "id": "ea94bc37-d995-4a83-aa99-4af42479f2f2",
+      "type": "invocation",
+      "data": {
+        "version": "1.0.0",
+        "id": "ea94bc37-d995-4a83-aa99-4af42479f2f2",
+        "type": "rand_int",
+        "inputs": {
+          "low": {
+            "id": "3ec65a37-60ba-4b6c-a0b2-553dd7a84b84",
+            "name": "low",
+            "type": "integer",
+            "fieldKind": "input",
+            "label": "",
+            "value": 0
+          },
+          "high": {
+            "id": "085f853a-1a5f-494d-8bec-e4ba29a3f2d1",
+            "name": "high",
+            "type": "integer",
+            "fieldKind": "input",
+            "label": "",
+            "value": 2147483647
+          }
+        },
+        "outputs": {
+          "value": {
+            "id": "812ade4d-7699-4261-b9fc-a6c9d2ab55ee",
+            "name": "value",
+            "type": "integer",
+            "fieldKind": "output"
+          }
+        },
+        "label": "Random Seed",
+        "isOpen": false,
+        "notes": "",
+        "embedWorkflow": false,
+        "isIntermediate": true
+      },
+      "width": 320,
+      "height": 32,
+      "position": {
+        "x": 1000,
+        "y": 275
+      }
+    },
+    {
+      "id": "75899702-fa44-46d2-b2d5-3e17f234c3e7",
+      "type": "invocation",
+      "data": {
+        "version": "1.0.0",
+        "id": "75899702-fa44-46d2-b2d5-3e17f234c3e7",
+        "type": "denoise_latents",
+        "inputs": {
+          "noise": {
+            "id": "8b18f3eb-40d2-45c1-9a9d-28d6af0dce2b",
+            "name": "noise",
+            "type": "LatentsField",
+            "fieldKind": "input",
+            "label": ""
+          },
+          "steps": {
+            "id": "0be4373c-46f3-441c-80a7-a4bb6ceb498c",
+            "name": "steps",
+            "type": "integer",
+            "fieldKind": "input",
+            "label": "",
+            "value": 36
+          },
+          "cfg_scale": {
+            "id": "107267ce-4666-4cd7-94b3-7476b7973ae9",
+            "name": "cfg_scale",
+            "type": "float",
+            "fieldKind": "input",
+            "label": "",
+            "value": 7.5
+          },
+          "denoising_start": {
+            "id": "d2ce9f0f-5fc2-48b2-b917-53442941e9a1",
+            "name": "denoising_start",
+            "type": "float",
+            "fieldKind": "input",
+            "label": "",
+            "value": 0
+          },
+          "denoising_end": {
+            "id": "8ad51505-b8d0-422a-beb8-96fc6fc6b65f",
+            "name": "denoising_end",
+            "type": "float",
+            "fieldKind": "input",
+            "label": "",
+            "value": 1
+          },
+          "scheduler": {
+            "id": "53092874-a43b-4623-91a2-76e62fdb1f2e",
+            "name": "scheduler",
+            "type": "Scheduler",
+            "fieldKind": "input",
+            "label": "",
+            "value": "euler"
+          },
+          "control": {
+            "id": "7abe57cc-469d-437e-ad72-a18efa28215f",
+            "name": "control",
+            "type": "ControlField",
+            "fieldKind": "input",
+            "label": ""
+          },
+          "latents": {
+            "id": "add8bbe5-14d0-42d4-a867-9c65ab8dd129",
+            "name": "latents",
+            "type": "LatentsField",
+            "fieldKind": "input",
+            "label": ""
+          },
+          "denoise_mask": {
+            "id": "f373a190-0fc8-45b7-ae62-c4aa8e9687e1",
+            "name": "denoise_mask",
+            "type": "DenoiseMaskField",
+            "fieldKind": "input",
+            "label": ""
+          },
+          "positive_conditioning": {
+            "id": "c7160303-8a23-4f15-9197-855d48802a7f",
+            "name": "positive_conditioning",
+            "type": "ConditioningField",
+            "fieldKind": "input",
+            "label": ""
+          },
+          "negative_conditioning": {
+            "id": "fd750efa-1dfc-4d0b-accb-828e905ba320",
+            "name": "negative_conditioning",
+            "type": "ConditioningField",
+            "fieldKind": "input",
+            "label": ""
+          },
+          "unet": {
+            "id": "af1f41ba-ce2a-4314-8d7f-494bb5800381",
+            "name": "unet",
+            "type": "UNetField",
+            "fieldKind": "input",
+            "label": ""
+          }
+        },
+        "outputs": {
+          "latents": {
+            "id": "8508d04d-f999-4a44-94d0-388ab1401d27",
+            "name": "latents",
+            "type": "LatentsField",
+            "fieldKind": "output"
+          },
+          "width": {
+            "id": "93dc8287-0a2a-4320-83a4-5e994b7ba23e",
+            "name": "width",
+            "type": "integer",
+            "fieldKind": "output"
+          },
+          "height": {
+            "id": "d9862f5c-0ab5-46fa-8c29-5059bb581d96",
+            "name": "height",
+            "type": "integer",
+            "fieldKind": "output"
+          }
+        },
+        "label": "",
+        "isOpen": true,
+        "notes": "",
+        "embedWorkflow": false,
+        "isIntermediate": true
+      },
+      "width": 320,
+      "height": 558,
+      "position": {
+        "x": 1400,
+        "y": 200
+      }
+    }
+  ],
+  "edges": [
+    {
+      "source": "ea94bc37-d995-4a83-aa99-4af42479f2f2",
+      "sourceHandle": "value",
+      "target": "55705012-79b9-4aac-9f26-c0b10309785b",
+      "targetHandle": "seed",
+      "id": "reactflow__edge-ea94bc37-d995-4a83-aa99-4af42479f2f2value-55705012-79b9-4aac-9f26-c0b10309785bseed",
+      "type": "default"
+    },
+    {
+      "source": "c8d55139-f380-4695-b7f2-8b3d1e1e3db8",
+      "sourceHandle": "clip",
+      "target": "7d8bf987-284f-413a-b2fd-d825445a5d6c",
+      "targetHandle": "clip",
+      "id": "reactflow__edge-c8d55139-f380-4695-b7f2-8b3d1e1e3db8clip-7d8bf987-284f-413a-b2fd-d825445a5d6cclip",
+      "type": "default"
+    },
+    {
+      "source": "c8d55139-f380-4695-b7f2-8b3d1e1e3db8",
+      "sourceHandle": "clip",
+      "target": "93dc02a4-d05b-48ed-b99c-c9b616af3402",
+      "targetHandle": "clip",
+      "id": "reactflow__edge-c8d55139-f380-4695-b7f2-8b3d1e1e3db8clip-93dc02a4-d05b-48ed-b99c-c9b616af3402clip",
+      "type": "default"
+    },
+    {
+      "source": "c8d55139-f380-4695-b7f2-8b3d1e1e3db8",
+      "sourceHandle": "vae",
+      "target": "dbcd2f98-d809-48c8-bf64-2635f88a2fe9",
+      "targetHandle": "vae",
+      "id": "reactflow__edge-c8d55139-f380-4695-b7f2-8b3d1e1e3db8vae-dbcd2f98-d809-48c8-bf64-2635f88a2fe9vae",
+      "type": "default"
+    },
+    {
+      "source": "75899702-fa44-46d2-b2d5-3e17f234c3e7",
+      "sourceHandle": "latents",
+      "target": "dbcd2f98-d809-48c8-bf64-2635f88a2fe9",
+      "targetHandle": "latents",
+      "id": "reactflow__edge-75899702-fa44-46d2-b2d5-3e17f234c3e7latents-dbcd2f98-d809-48c8-bf64-2635f88a2fe9latents",
+      "type": "default"
+    },
+    {
+      "source": "7d8bf987-284f-413a-b2fd-d825445a5d6c",
+      "sourceHandle": "conditioning",
+      "target": "75899702-fa44-46d2-b2d5-3e17f234c3e7",
+      "targetHandle": "positive_conditioning",
+      "id": "reactflow__edge-7d8bf987-284f-413a-b2fd-d825445a5d6cconditioning-75899702-fa44-46d2-b2d5-3e17f234c3e7positive_conditioning",
+      "type": "default"
+    },
+    {
+      "source": "93dc02a4-d05b-48ed-b99c-c9b616af3402",
+      "sourceHandle": "conditioning",
+      "target": "75899702-fa44-46d2-b2d5-3e17f234c3e7",
+      "targetHandle": "negative_conditioning",
+      "id": "reactflow__edge-93dc02a4-d05b-48ed-b99c-c9b616af3402conditioning-75899702-fa44-46d2-b2d5-3e17f234c3e7negative_conditioning",
+      "type": "default"
+    },
+    {
+      "source": "c8d55139-f380-4695-b7f2-8b3d1e1e3db8",
+      "sourceHandle": "unet",
+      "target": "75899702-fa44-46d2-b2d5-3e17f234c3e7",
+      "targetHandle": "unet",
+      "id": "reactflow__edge-c8d55139-f380-4695-b7f2-8b3d1e1e3db8unet-75899702-fa44-46d2-b2d5-3e17f234c3e7unet",
+      "type": "default"
+    },
+    {
+      "source": "55705012-79b9-4aac-9f26-c0b10309785b",
+      "sourceHandle": "noise",
+      "target": "75899702-fa44-46d2-b2d5-3e17f234c3e7",
+      "targetHandle": "noise",
+      "id": "reactflow__edge-55705012-79b9-4aac-9f26-c0b10309785bnoise-75899702-fa44-46d2-b2d5-3e17f234c3e7noise",
+      "type": "default"
+    }
+  ]
+}

installer/create_installer.sh

@@ -14,7 +14,7 @@ fi
 VERSION=$(cd ..; python -c "from invokeai.version import __version__ as version; print(version)")
 PATCH=""
 VERSION="v${VERSION}${PATCH}"
-LATEST_TAG="v3.0-latest"
+LATEST_TAG="v3-latest"
 
 echo Building installer for version $VERSION
 echo "Be certain that you're in the 'installer' directory before continuing."

installer/lib/main.py

@@ -5,6 +5,7 @@ InvokeAI Installer
 import argparse
 import os
 from pathlib import Path
+
 from installer import Installer
 
 if __name__ == "__main__":

invokeai/app/api/dependencies.py

@@ -1,34 +1,35 @@
 # Copyright (c) 2022 Kyle Schouviller (https://github.com/kyle0654)
 
+import sqlite3
 from logging import Logger
-from invokeai.app.services.board_image_record_storage import (
-    SqliteBoardImageRecordStorage,
-)
-from invokeai.app.services.board_images import (
-    BoardImagesService,
-    BoardImagesServiceDependencies,
-)
+
+from invokeai.app.services.board_image_record_storage import SqliteBoardImageRecordStorage
+from invokeai.app.services.board_images import BoardImagesService, BoardImagesServiceDependencies
 from invokeai.app.services.board_record_storage import SqliteBoardRecordStorage
 from invokeai.app.services.boards import BoardService, BoardServiceDependencies
 from invokeai.app.services.config import InvokeAIAppConfig
 from invokeai.app.services.image_record_storage import SqliteImageRecordStorage
 from invokeai.app.services.images import ImageService, ImageServiceDependencies
+from invokeai.app.services.invocation_cache.invocation_cache_memory import MemoryInvocationCache
 from invokeai.app.services.resource_name import SimpleNameService
+from invokeai.app.services.session_processor.session_processor_default import DefaultSessionProcessor
+from invokeai.app.services.session_queue.session_queue_sqlite import SqliteSessionQueue
 from invokeai.app.services.urls import LocalUrlService
 from invokeai.backend.util.logging import InvokeAILogger
 from invokeai.version.invokeai_version import __version__
 
 from ..services.default_graphs import create_system_graphs
-from ..services.latent_storage import DiskLatentsStorage, ForwardCacheLatentsStorage
 from ..services.graph import GraphExecutionState, LibraryGraph
 from ..services.image_file_storage import DiskImageFileStorage
 from ..services.invocation_queue import MemoryInvocationQueue
 from ..services.invocation_services import InvocationServices
+from ..services.invocation_stats import InvocationStatsService
 from ..services.invoker import Invoker
+from ..services.latent_storage import DiskLatentsStorage, ForwardCacheLatentsStorage
+from ..services.model_manager_service import ModelManagerService
 from ..services.processor import DefaultInvocationProcessor
 from ..services.sqlite import SqliteItemStorage
-from ..services.model_manager_service import ModelManagerService
-from ..services.invocation_stats import InvocationStatsService
+from ..services.thread import lock
 from .events import FastAPIEventService
 
 
@@ -67,22 +68,32 @@ class ApiDependencies:
         output_folder = config.output_path
 
         # TODO: build a file/path manager?
+        if config.use_memory_db:
+            db_location = ":memory:"
+        else:
             db_path = config.db_path
             db_path.parent.mkdir(parents=True, exist_ok=True)
             db_location = str(db_path)
 
+        logger.info(f"Using database at {db_location}")
+        db_conn = sqlite3.connect(db_location, check_same_thread=False)  # TODO: figure out a better threading solution
+
+        if config.log_sql:
+            db_conn.set_trace_callback(print)
+        db_conn.execute("PRAGMA foreign_keys = ON;")
+
         graph_execution_manager = SqliteItemStorage[GraphExecutionState](
-            filename=db_location, table_name="graph_executions"
+            conn=db_conn, table_name="graph_executions", lock=lock
         )
 
         urls = LocalUrlService()
-        image_record_storage = SqliteImageRecordStorage(db_location)
+        image_record_storage = SqliteImageRecordStorage(conn=db_conn, lock=lock)
         image_file_storage = DiskImageFileStorage(f"{output_folder}/images")
         names = SimpleNameService()
         latents = ForwardCacheLatentsStorage(DiskLatentsStorage(f"{output_folder}/latents"))
 
-        board_record_storage = SqliteBoardRecordStorage(db_location)
-        board_image_record_storage = SqliteBoardImageRecordStorage(db_location)
+        board_record_storage = SqliteBoardRecordStorage(conn=db_conn, lock=lock)
+        board_image_record_storage = SqliteBoardImageRecordStorage(conn=db_conn, lock=lock)
 
         boards = BoardService(
             services=BoardServiceDependencies(
@@ -124,18 +135,29 @@ class ApiDependencies:
             boards=boards,
             board_images=board_images,
             queue=MemoryInvocationQueue(),
-            graph_library=SqliteItemStorage[LibraryGraph](filename=db_location, table_name="graphs"),
+            graph_library=SqliteItemStorage[LibraryGraph](conn=db_conn, lock=lock, table_name="graphs"),
             graph_execution_manager=graph_execution_manager,
             processor=DefaultInvocationProcessor(),
             configuration=config,
             performance_statistics=InvocationStatsService(graph_execution_manager),
             logger=logger,
+            session_queue=SqliteSessionQueue(conn=db_conn, lock=lock),
+            session_processor=DefaultSessionProcessor(),
+            invocation_cache=MemoryInvocationCache(max_cache_size=config.node_cache_size),
         )
 
         create_system_graphs(services.graph_library)
 
         ApiDependencies.invoker = Invoker(services)
 
+        try:
+            lock.acquire()
+            db_conn.execute("VACUUM;")
+            db_conn.commit()
+            logger.info("Cleaned database")
+        finally:
+            lock.release()
+
     @staticmethod
     def shutdown():
         if ApiDependencies.invoker:

invokeai/app/api/routers/images.py

@@ -1,20 +1,17 @@
 import io
 from typing import Optional
 
-from PIL import Image
 from fastapi import Body, HTTPException, Path, Query, Request, Response, UploadFile
 from fastapi.responses import FileResponse
 from fastapi.routing import APIRouter
+from PIL import Image
 from pydantic import BaseModel, Field
 
 from invokeai.app.invocations.metadata import ImageMetadata
 from invokeai.app.models.image import ImageCategory, ResourceOrigin
 from invokeai.app.services.image_record_storage import OffsetPaginatedResults
-from invokeai.app.services.models.image_record import (
-    ImageDTO,
-    ImageRecordChanges,
-    ImageUrlsDTO,
-)
+from invokeai.app.services.models.image_record import ImageDTO, ImageRecordChanges, ImageUrlsDTO
+
 from ..dependencies import ApiDependencies
 
 images_router = APIRouter(prefix="/v1/images", tags=["images"])

invokeai/app/api/routers/models.py

@@ -2,7 +2,7 @@
 
 
 import pathlib
-from typing import Literal, List, Optional, Union
+from typing import List, Literal, Optional, Union
 
 from fastapi import Body, Path, Query, Response
 from fastapi.routing import APIRouter
@@ -10,13 +10,13 @@ from pydantic import BaseModel, parse_obj_as
 from starlette.exceptions import HTTPException
 
 from invokeai.backend import BaseModelType, ModelType
+from invokeai.backend.model_management import MergeInterpolationMethod
 from invokeai.backend.model_management.models import (
     OPENAPI_MODEL_CONFIGS,
-    SchedulerPredictionType,
-    ModelNotFoundException,
     InvalidModelException,
+    ModelNotFoundException,
+    SchedulerPredictionType,
 )
-from invokeai.backend.model_management import MergeInterpolationMethod
 
 from ..dependencies import ApiDependencies
 

invokeai/app/api/routers/session_queue.py

@@ -0,0 +1,247 @@
+from typing import Optional
+
+from fastapi import Body, Path, Query
+from fastapi.routing import APIRouter
+from pydantic import BaseModel
+
+from invokeai.app.services.session_processor.session_processor_common import SessionProcessorStatus
+from invokeai.app.services.session_queue.session_queue_common import (
+    QUEUE_ITEM_STATUS,
+    Batch,
+    BatchStatus,
+    CancelByBatchIDsResult,
+    ClearResult,
+    EnqueueBatchResult,
+    EnqueueGraphResult,
+    PruneResult,
+    SessionQueueItem,
+    SessionQueueItemDTO,
+    SessionQueueStatus,
+)
+from invokeai.app.services.shared.models import CursorPaginatedResults
+
+from ...services.graph import Graph
+from ..dependencies import ApiDependencies
+
+session_queue_router = APIRouter(prefix="/v1/queue", tags=["queue"])
+
+
+class SessionQueueAndProcessorStatus(BaseModel):
+    """The overall status of session queue and processor"""
+
+    queue: SessionQueueStatus
+    processor: SessionProcessorStatus
+
+
+@session_queue_router.post(
+    "/{queue_id}/enqueue_graph",
+    operation_id="enqueue_graph",
+    responses={
+        201: {"model": EnqueueGraphResult},
+    },
+)
+async def enqueue_graph(
+    queue_id: str = Path(description="The queue id to perform this operation on"),
+    graph: Graph = Body(description="The graph to enqueue"),
+    prepend: bool = Body(default=False, description="Whether or not to prepend this batch in the queue"),
+) -> EnqueueGraphResult:
+    """Enqueues a graph for single execution."""
+
+    return ApiDependencies.invoker.services.session_queue.enqueue_graph(queue_id=queue_id, graph=graph, prepend=prepend)
+
+
+@session_queue_router.post(
+    "/{queue_id}/enqueue_batch",
+    operation_id="enqueue_batch",
+    responses={
+        201: {"model": EnqueueBatchResult},
+    },
+)
+async def enqueue_batch(
+    queue_id: str = Path(description="The queue id to perform this operation on"),
+    batch: Batch = Body(description="Batch to process"),
+    prepend: bool = Body(default=False, description="Whether or not to prepend this batch in the queue"),
+) -> EnqueueBatchResult:
+    """Processes a batch and enqueues the output graphs for execution."""
+
+    return ApiDependencies.invoker.services.session_queue.enqueue_batch(queue_id=queue_id, batch=batch, prepend=prepend)
+
+
+@session_queue_router.get(
+    "/{queue_id}/list",
+    operation_id="list_queue_items",
+    responses={
+        200: {"model": CursorPaginatedResults[SessionQueueItemDTO]},
+    },
+)
+async def list_queue_items(
+    queue_id: str = Path(description="The queue id to perform this operation on"),
+    limit: int = Query(default=50, description="The number of items to fetch"),
+    status: Optional[QUEUE_ITEM_STATUS] = Query(default=None, description="The status of items to fetch"),
+    cursor: Optional[int] = Query(default=None, description="The pagination cursor"),
+    priority: int = Query(default=0, description="The pagination cursor priority"),
+) -> CursorPaginatedResults[SessionQueueItemDTO]:
+    """Gets all queue items (without graphs)"""
+
+    return ApiDependencies.invoker.services.session_queue.list_queue_items(
+        queue_id=queue_id, limit=limit, status=status, order_id=cursor, priority=priority
+    )
+
+
+@session_queue_router.put(
+    "/{queue_id}/processor/resume",
+    operation_id="resume",
+    responses={200: {"model": SessionProcessorStatus}},
+)
+async def resume(
+    queue_id: str = Path(description="The queue id to perform this operation on"),
+) -> SessionProcessorStatus:
+    """Resumes session processor"""
+    return ApiDependencies.invoker.services.session_processor.resume()
+
+
+@session_queue_router.put(
+    "/{queue_id}/processor/pause",
+    operation_id="pause",
+    responses={200: {"model": SessionProcessorStatus}},
+)
+async def Pause(
+    queue_id: str = Path(description="The queue id to perform this operation on"),
+) -> SessionProcessorStatus:
+    """Pauses session processor"""
+    return ApiDependencies.invoker.services.session_processor.pause()
+
+
+@session_queue_router.put(
+    "/{queue_id}/cancel_by_batch_ids",
+    operation_id="cancel_by_batch_ids",
+    responses={200: {"model": CancelByBatchIDsResult}},
+)
+async def cancel_by_batch_ids(
+    queue_id: str = Path(description="The queue id to perform this operation on"),
+    batch_ids: list[str] = Body(description="The list of batch_ids to cancel all queue items for", embed=True),
+) -> CancelByBatchIDsResult:
+    """Immediately cancels all queue items from the given batch ids"""
+    return ApiDependencies.invoker.services.session_queue.cancel_by_batch_ids(queue_id=queue_id, batch_ids=batch_ids)
+
+
+@session_queue_router.put(
+    "/{queue_id}/clear",
+    operation_id="clear",
+    responses={
+        200: {"model": ClearResult},
+    },
+)
+async def clear(
+    queue_id: str = Path(description="The queue id to perform this operation on"),
+) -> ClearResult:
+    """Clears the queue entirely, immediately canceling the currently-executing session"""
+    queue_item = ApiDependencies.invoker.services.session_queue.get_current(queue_id)
+    if queue_item is not None:
+        ApiDependencies.invoker.services.session_queue.cancel_queue_item(queue_item.item_id)
+    clear_result = ApiDependencies.invoker.services.session_queue.clear(queue_id)
+    return clear_result
+
+
+@session_queue_router.put(
+    "/{queue_id}/prune",
+    operation_id="prune",
+    responses={
+        200: {"model": PruneResult},
+    },
+)
+async def prune(
+    queue_id: str = Path(description="The queue id to perform this operation on"),
+) -> PruneResult:
+    """Prunes all completed or errored queue items"""
+    return ApiDependencies.invoker.services.session_queue.prune(queue_id)
+
+
+@session_queue_router.get(
+    "/{queue_id}/current",
+    operation_id="get_current_queue_item",
+    responses={
+        200: {"model": Optional[SessionQueueItem]},
+    },
+)
+async def get_current_queue_item(
+    queue_id: str = Path(description="The queue id to perform this operation on"),
+) -> Optional[SessionQueueItem]:
+    """Gets the currently execution queue item"""
+    return ApiDependencies.invoker.services.session_queue.get_current(queue_id)
+
+
+@session_queue_router.get(
+    "/{queue_id}/next",
+    operation_id="get_next_queue_item",
+    responses={
+        200: {"model": Optional[SessionQueueItem]},
+    },
+)
+async def get_next_queue_item(
+    queue_id: str = Path(description="The queue id to perform this operation on"),
+) -> Optional[SessionQueueItem]:
+    """Gets the next queue item, without executing it"""
+    return ApiDependencies.invoker.services.session_queue.get_next(queue_id)
+
+
+@session_queue_router.get(
+    "/{queue_id}/status",
+    operation_id="get_queue_status",
+    responses={
+        200: {"model": SessionQueueAndProcessorStatus},
+    },
+)
+async def get_queue_status(
+    queue_id: str = Path(description="The queue id to perform this operation on"),
+) -> SessionQueueAndProcessorStatus:
+    """Gets the status of the session queue"""
+    queue = ApiDependencies.invoker.services.session_queue.get_queue_status(queue_id)
+    processor = ApiDependencies.invoker.services.session_processor.get_status()
+    return SessionQueueAndProcessorStatus(queue=queue, processor=processor)
+
+
+@session_queue_router.get(
+    "/{queue_id}/b/{batch_id}/status",
+    operation_id="get_batch_status",
+    responses={
+        200: {"model": BatchStatus},
+    },
+)
+async def get_batch_status(
+    queue_id: str = Path(description="The queue id to perform this operation on"),
+    batch_id: str = Path(description="The batch to get the status of"),
+) -> BatchStatus:
+    """Gets the status of the session queue"""
+    return ApiDependencies.invoker.services.session_queue.get_batch_status(queue_id=queue_id, batch_id=batch_id)
+
+
+@session_queue_router.get(
+    "/{queue_id}/i/{item_id}",
+    operation_id="get_queue_item",
+    responses={
+        200: {"model": SessionQueueItem},
+    },
+)
+async def get_queue_item(
+    queue_id: str = Path(description="The queue id to perform this operation on"),
+    item_id: str = Path(description="The queue item to get"),
+) -> SessionQueueItem:
+    """Gets a queue item"""
+    return ApiDependencies.invoker.services.session_queue.get_queue_item(item_id)
+
+
+@session_queue_router.put(
+    "/{queue_id}/i/{item_id}/cancel",
+    operation_id="cancel_queue_item",
+    responses={
+        200: {"model": SessionQueueItem},
+    },
+)
+async def cancel_queue_item(
+    queue_id: str = Path(description="The queue id to perform this operation on"),
+    item_id: str = Path(description="The queue item to cancel"),
+) -> SessionQueueItem:
+    """Deletes a queue item"""
+
+    return ApiDependencies.invoker.services.session_queue.cancel_queue_item(item_id)

invokeai/app/api/routers/sessions.py

@@ -9,13 +9,7 @@ from pydantic.fields import Field
 # Importing * is bad karma but needed here for node detection
 from ...invocations import *  # noqa: F401 F403
 from ...invocations.baseinvocation import BaseInvocation
-from ...services.graph import (
-    Edge,
-    EdgeConnection,
-    Graph,
-    GraphExecutionState,
-    NodeAlreadyExecutedError,
-)
+from ...services.graph import Edge, EdgeConnection, Graph, GraphExecutionState, NodeAlreadyExecutedError
 from ...services.item_storage import PaginatedResults
 from ..dependencies import ApiDependencies
 
@@ -29,12 +23,14 @@ session_router = APIRouter(prefix="/v1/sessions", tags=["sessions"])
         200: {"model": GraphExecutionState},
         400: {"description": "Invalid json"},
     },
+    deprecated=True,
 )
 async def create_session(
-    graph: Optional[Graph] = Body(default=None, description="The graph to initialize the session with")
+    queue_id: str = Query(default="", description="The id of the queue to associate the session with"),
+    graph: Optional[Graph] = Body(default=None, description="The graph to initialize the session with"),
 ) -> GraphExecutionState:
     """Creates a new session, optionally initializing it with an invocation graph"""
-    session = ApiDependencies.invoker.create_execution_state(graph)
+    session = ApiDependencies.invoker.create_execution_state(queue_id=queue_id, graph=graph)
     return session
 
 
@@ -42,6 +38,7 @@ async def create_session(
     "/",
     operation_id="list_sessions",
     responses={200: {"model": PaginatedResults[GraphExecutionState]}},
+    deprecated=True,
 )
 async def list_sessions(
     page: int = Query(default=0, description="The page of results to get"),
@@ -63,6 +60,7 @@ async def list_sessions(
         200: {"model": GraphExecutionState},
         404: {"description": "Session not found"},
     },
+    deprecated=True,
 )
 async def get_session(
     session_id: str = Path(description="The id of the session to get"),
@@ -83,6 +81,7 @@ async def get_session(
         400: {"description": "Invalid node or link"},
         404: {"description": "Session not found"},
     },
+    deprecated=True,
 )
 async def add_node(
     session_id: str = Path(description="The id of the session"),
@@ -115,6 +114,7 @@ async def add_node(
         400: {"description": "Invalid node or link"},
         404: {"description": "Session not found"},
     },
+    deprecated=True,
 )
 async def update_node(
     session_id: str = Path(description="The id of the session"),
@@ -148,6 +148,7 @@ async def update_node(
         400: {"description": "Invalid node or link"},
         404: {"description": "Session not found"},
     },
+    deprecated=True,
 )
 async def delete_node(
     session_id: str = Path(description="The id of the session"),
@@ -178,6 +179,7 @@ async def delete_node(
         400: {"description": "Invalid node or link"},
         404: {"description": "Session not found"},
     },
+    deprecated=True,
 )
 async def add_edge(
     session_id: str = Path(description="The id of the session"),
@@ -209,6 +211,7 @@ async def add_edge(
         400: {"description": "Invalid node or link"},
         404: {"description": "Session not found"},
     },
+    deprecated=True,
 )
 async def delete_edge(
     session_id: str = Path(description="The id of the session"),
@@ -247,8 +250,10 @@ async def delete_edge(
         400: {"description": "The session has no invocations ready to invoke"},
         404: {"description": "Session not found"},
     },
+    deprecated=True,
 )
 async def invoke_session(
+    queue_id: str = Query(description="The id of the queue to associate the session with"),
     session_id: str = Path(description="The id of the session to invoke"),
     all: bool = Query(default=False, description="Whether or not to invoke all remaining invocations"),
 ) -> Response:
@@ -260,7 +265,7 @@ async def invoke_session(
     if session.is_complete():
         raise HTTPException(status_code=400)
 
-    ApiDependencies.invoker.invoke(session, invoke_all=all)
+    ApiDependencies.invoker.invoke(queue_id, session, invoke_all=all)
     return Response(status_code=202)
 
 
@@ -268,6 +273,7 @@ async def invoke_session(
     "/{session_id}/invoke",
     operation_id="cancel_session_invoke",
     responses={202: {"description": "The invocation is canceled"}},
+    deprecated=True,
 )
 async def cancel_session_invoke(
     session_id: str = Path(description="The id of the session to cancel"),

invokeai/app/api/routers/utilities.py

@@ -0,0 +1,41 @@
+from typing import Optional
+
+from dynamicprompts.generators import CombinatorialPromptGenerator, RandomPromptGenerator
+from fastapi import Body
+from fastapi.routing import APIRouter
+from pydantic import BaseModel
+from pyparsing import ParseException
+
+utilities_router = APIRouter(prefix="/v1/utilities", tags=["utilities"])
+
+
+class DynamicPromptsResponse(BaseModel):
+    prompts: list[str]
+    error: Optional[str] = None
+
+
+@utilities_router.post(
+    "/dynamicprompts",
+    operation_id="parse_dynamicprompts",
+    responses={
+        200: {"model": DynamicPromptsResponse},
+    },
+)
+async def parse_dynamicprompts(
+    prompt: str = Body(description="The prompt to parse with dynamicprompts"),
+    max_prompts: int = Body(default=1000, description="The max number of prompts to generate"),
+    combinatorial: bool = Body(default=True, description="Whether to use the combinatorial generator"),
+) -> DynamicPromptsResponse:
+    """Creates a batch process"""
+    try:
+        error: Optional[str] = None
+        if combinatorial:
+            generator = CombinatorialPromptGenerator()
+            prompts = generator.generate(prompt, max_prompts=max_prompts)
+        else:
+            generator = RandomPromptGenerator()
+            prompts = generator.generate(prompt, num_images=max_prompts)
+    except ParseException as e:
+        prompts = [prompt]
+        error = str(e)
+    return DynamicPromptsResponse(prompts=prompts if prompts else [""], error=error)

invokeai/app/api/sockets.py

@@ -13,24 +13,22 @@ class SocketIO:
 
     def __init__(self, app: FastAPI):
         self.__sio = SocketManager(app=app)
-        self.__sio.on("subscribe", handler=self._handle_sub)
-        self.__sio.on("unsubscribe", handler=self._handle_unsub)
 
-        local_handler.register(event_name=EventServiceBase.session_event, _func=self._handle_session_event)
+        self.__sio.on("subscribe_queue", handler=self._handle_sub_queue)
+        self.__sio.on("unsubscribe_queue", handler=self._handle_unsub_queue)
+        local_handler.register(event_name=EventServiceBase.queue_event, _func=self._handle_queue_event)
 
-    async def _handle_session_event(self, event: Event):
+    async def _handle_queue_event(self, event: Event):
         await self.__sio.emit(
             event=event[1]["event"],
             data=event[1]["data"],
-            room=event[1]["data"]["graph_execution_state_id"],
+            room=event[1]["data"]["queue_id"],
         )
 
-    async def _handle_sub(self, sid, data, *args, **kwargs):
-        if "session" in data:
-            self.__sio.enter_room(sid, data["session"])
+    async def _handle_sub_queue(self, sid, data, *args, **kwargs):
+        if "queue_id" in data:
+            self.__sio.enter_room(sid, data["queue_id"])
 
-        # @app.sio.on('unsubscribe')
-
-    async def _handle_unsub(self, sid, data, *args, **kwargs):
-        if "session" in data:
-            self.__sio.leave_room(sid, data["session"])
+    async def _handle_unsub_queue(self, sid, data, *args, **kwargs):
+        if "queue_id" in data:
+            self.__sio.enter_room(sid, data["queue_id"])

invokeai/app/api_app.py

@@ -1,45 +1,46 @@
-# Copyright (c) 2022-2023 Kyle Schouviller (https://github.com/kyle0654) and the InvokeAI Team
-import asyncio
-import logging
-import socket
-from inspect import signature
-from pathlib import Path
-
-import uvicorn
-from fastapi import FastAPI
-from fastapi.middleware.cors import CORSMiddleware
-from fastapi.openapi.docs import get_redoc_html, get_swagger_ui_html
-from fastapi.openapi.utils import get_openapi
-from fastapi.staticfiles import StaticFiles
-from fastapi_events.handlers.local import local_handler
-from fastapi_events.middleware import EventHandlerASGIMiddleware
-from pydantic.schema import schema
-
 from .services.config import InvokeAIAppConfig
-from ..backend.util.logging import InvokeAILogger
 
-from invokeai.version.invokeai_version import __version__
+# parse_args() must be called before any other imports. if it is not called first, consumers of the config
+# which are imported/used before parse_args() is called will get the default config values instead of the
+# values from the command line or config file.
+app_config = InvokeAIAppConfig.get_config()
+app_config.parse_args()
 
-import invokeai.frontend.web as web_dir
-import mimetypes
+if True:  # hack to make flake8 happy with imports coming after setting up the config
+    import asyncio
+    import logging
+    import mimetypes
+    import socket
+    from inspect import signature
+    from pathlib import Path
 
-from .api.dependencies import ApiDependencies
-from .api.routers import sessions, models, images, boards, board_images, app_info
-from .api.sockets import SocketIO
-from .invocations.baseinvocation import BaseInvocation, _InputField, _OutputField, UIConfigBase
+    import torch
+    import uvicorn
+    from fastapi import FastAPI
+    from fastapi.middleware.cors import CORSMiddleware
+    from fastapi.openapi.docs import get_redoc_html, get_swagger_ui_html
+    from fastapi.openapi.utils import get_openapi
+    from fastapi.staticfiles import StaticFiles
+    from fastapi_events.handlers.local import local_handler
+    from fastapi_events.middleware import EventHandlerASGIMiddleware
+    from pydantic.schema import schema
 
-import torch
+    # noinspection PyUnresolvedReferences
+    import invokeai.backend.util.hotfixes  # noqa: F401 (monkeypatching on import)
+    import invokeai.frontend.web as web_dir
+    from invokeai.version.invokeai_version import __version__
 
-# noinspection PyUnresolvedReferences
-import invokeai.backend.util.hotfixes  # noqa: F401 (monkeypatching on import)
+    from ..backend.util.logging import InvokeAILogger
+    from .api.dependencies import ApiDependencies
+    from .api.routers import app_info, board_images, boards, images, models, session_queue, sessions, utilities
+    from .api.sockets import SocketIO
+    from .invocations.baseinvocation import BaseInvocation, UIConfigBase, _InputField, _OutputField
 
-if torch.backends.mps.is_available():
+    if torch.backends.mps.is_available():
         # noinspection PyUnresolvedReferences
         import invokeai.backend.util.mps_fixes  # noqa: F401 (monkeypatching on import)
 
 
-app_config = InvokeAIAppConfig.get_config()
-app_config.parse_args()
 logger = InvokeAILogger.getLogger(config=app_config)
 
 # fix for windows mimetypes registry entries being borked
@@ -90,6 +91,8 @@ async def shutdown_event():
 
 app.include_router(sessions.session_router, prefix="/api")
 
+app.include_router(utilities.utilities_router, prefix="/api")
+
 app.include_router(models.models_router, prefix="/api")
 
 app.include_router(images.images_router, prefix="/api")
@@ -100,6 +103,8 @@ app.include_router(board_images.board_images_router, prefix="/api")
 
 app.include_router(app_info.app_router, prefix="/api")
 
+app.include_router(session_queue.session_queue_router, prefix="/api")
+
 
 # Build a custom OpenAPI to include all outputs
 # TODO: can outputs be included on metadata of invocation schemas somehow?

invokeai/app/cli/commands.py

@@ -1,16 +1,18 @@
 # Copyright (c) 2023 Kyle Schouviller (https://github.com/kyle0654)
 
-from abc import ABC, abstractmethod
 import argparse
+from abc import ABC, abstractmethod
 from typing import Any, Callable, Iterable, Literal, Union, get_args, get_origin, get_type_hints
-from pydantic import BaseModel, Field
-import networkx as nx
+
 import matplotlib.pyplot as plt
+import networkx as nx
+from pydantic import BaseModel, Field
 
 import invokeai.backend.util.logging as logger
+
 from ..invocations.baseinvocation import BaseInvocation
 from ..invocations.image import ImageField
-from ..services.graph import GraphExecutionState, LibraryGraph, Edge
+from ..services.graph import Edge, GraphExecutionState, LibraryGraph
 from ..services.invoker import Invoker
 
 

invokeai/app/cli/completer.py

@@ -6,15 +6,15 @@ completer object.
 import atexit
 import readline
 import shlex
-
 from pathlib import Path
-from typing import List, Dict, Literal, get_args, get_type_hints, get_origin
+from typing import Dict, List, Literal, get_args, get_origin, get_type_hints
 
 import invokeai.backend.util.logging as logger
+
 from ...backend import ModelManager
 from ..invocations.baseinvocation import BaseInvocation
-from .commands import BaseCommand
 from ..services.invocation_services import InvocationServices
+from .commands import BaseCommand
 
 # singleton object, class variable
 completer = None

invokeai/app/cli_app.py

@@ -1,67 +1,67 @@
-# Copyright (c) 2022 Kyle Schouviller (https://github.com/kyle0654)
+# Copyright (c) 2022 Kyle Schouviller (https://github.com/kyle0654) and the InvokeAI Team
 
-import argparse
-import re
-import shlex
-import sys
-import time
-from typing import Union, get_type_hints, Optional
+from invokeai.app.services.invocation_cache.invocation_cache_memory import MemoryInvocationCache
 
-from pydantic import BaseModel, ValidationError
-from pydantic.fields import Field
-
-# This should come early so that the logger can pick up its configuration options
 from .services.config import InvokeAIAppConfig
-from invokeai.backend.util.logging import InvokeAILogger
-from invokeai.version.invokeai_version import __version__
 
+# parse_args() must be called before any other imports. if it is not called first, consumers of the config
+# which are imported/used before parse_args() is called will get the default config values instead of the
+# values from the command line or config file.
+config = InvokeAIAppConfig.get_config()
+config.parse_args()
 
-from invokeai.app.services.board_image_record_storage import (
-    SqliteBoardImageRecordStorage,
-)
-from invokeai.app.services.board_images import (
-    BoardImagesService,
-    BoardImagesServiceDependencies,
-)
-from invokeai.app.services.board_record_storage import SqliteBoardRecordStorage
-from invokeai.app.services.boards import BoardService, BoardServiceDependencies
-from invokeai.app.services.image_record_storage import SqliteImageRecordStorage
-from invokeai.app.services.images import ImageService, ImageServiceDependencies
-from invokeai.app.services.resource_name import SimpleNameService
-from invokeai.app.services.urls import LocalUrlService
-from invokeai.app.services.invocation_stats import InvocationStatsService
-from .services.default_graphs import default_text_to_image_graph_id, create_system_graphs
-from .services.latent_storage import DiskLatentsStorage, ForwardCacheLatentsStorage
+if True:  # hack to make flake8 happy with imports coming after setting up the config
+    import argparse
+    import re
+    import shlex
+    import sqlite3
+    import sys
+    import time
+    from typing import Optional, Union, get_type_hints
 
-from .cli.commands import BaseCommand, CliContext, ExitCli, SortedHelpFormatter, add_graph_parsers, add_parsers
-from .cli.completer import set_autocompleter
-from .invocations.baseinvocation import BaseInvocation
-from .services.events import EventServiceBase
-from .services.graph import (
+    import torch
+    from pydantic import BaseModel, ValidationError
+    from pydantic.fields import Field
+
+    import invokeai.backend.util.hotfixes  # noqa: F401 (monkeypatching on import)
+    from invokeai.app.services.board_image_record_storage import SqliteBoardImageRecordStorage
+    from invokeai.app.services.board_images import BoardImagesService, BoardImagesServiceDependencies
+    from invokeai.app.services.board_record_storage import SqliteBoardRecordStorage
+    from invokeai.app.services.boards import BoardService, BoardServiceDependencies
+    from invokeai.app.services.image_record_storage import SqliteImageRecordStorage
+    from invokeai.app.services.images import ImageService, ImageServiceDependencies
+    from invokeai.app.services.invocation_stats import InvocationStatsService
+    from invokeai.app.services.resource_name import SimpleNameService
+    from invokeai.app.services.urls import LocalUrlService
+    from invokeai.backend.util.logging import InvokeAILogger
+    from invokeai.version.invokeai_version import __version__
+
+    from .cli.commands import BaseCommand, CliContext, ExitCli, SortedHelpFormatter, add_graph_parsers, add_parsers
+    from .cli.completer import set_autocompleter
+    from .invocations.baseinvocation import BaseInvocation
+    from .services.default_graphs import create_system_graphs, default_text_to_image_graph_id
+    from .services.events import EventServiceBase
+    from .services.graph import (
         Edge,
         EdgeConnection,
         GraphExecutionState,
         GraphInvocation,
         LibraryGraph,
         are_connection_types_compatible,
-)
-from .services.image_file_storage import DiskImageFileStorage
-from .services.invocation_queue import MemoryInvocationQueue
-from .services.invocation_services import InvocationServices
-from .services.invoker import Invoker
-from .services.model_manager_service import ModelManagerService
-from .services.processor import DefaultInvocationProcessor
-from .services.sqlite import SqliteItemStorage
+    )
+    from .services.image_file_storage import DiskImageFileStorage
+    from .services.invocation_queue import MemoryInvocationQueue
+    from .services.invocation_services import InvocationServices
+    from .services.invoker import Invoker
+    from .services.latent_storage import DiskLatentsStorage, ForwardCacheLatentsStorage
+    from .services.model_manager_service import ModelManagerService
+    from .services.processor import DefaultInvocationProcessor
+    from .services.sqlite import SqliteItemStorage
 
-import torch
-import invokeai.backend.util.hotfixes  # noqa: F401 (monkeypatching on import)
-
-if torch.backends.mps.is_available():
+    if torch.backends.mps.is_available():
         import invokeai.backend.util.mps_fixes  # noqa: F401 (monkeypatching on import)
 
 
-config = InvokeAIAppConfig.get_config()
-config.parse_args()
 logger = InvokeAILogger().getLogger(config=config)
 
 
@@ -252,19 +252,18 @@ def invoke_cli():
         db_location = config.db_path
         db_location.parent.mkdir(parents=True, exist_ok=True)
 
+    db_conn = sqlite3.connect(db_location, check_same_thread=False)  # TODO: figure out a better threading solution
     logger.info(f'InvokeAI database location is "{db_location}"')
 
-    graph_execution_manager = SqliteItemStorage[GraphExecutionState](
-        filename=db_location, table_name="graph_executions"
-    )
+    graph_execution_manager = SqliteItemStorage[GraphExecutionState](conn=db_conn, table_name="graph_executions")
 
     urls = LocalUrlService()
-    image_record_storage = SqliteImageRecordStorage(db_location)
+    image_record_storage = SqliteImageRecordStorage(conn=db_conn)
     image_file_storage = DiskImageFileStorage(f"{output_folder}/images")
     names = SimpleNameService()
 
-    board_record_storage = SqliteBoardRecordStorage(db_location)
-    board_image_record_storage = SqliteBoardImageRecordStorage(db_location)
+    board_record_storage = SqliteBoardRecordStorage(conn=db_conn)
+    board_image_record_storage = SqliteBoardImageRecordStorage(conn=db_conn)
 
     boards = BoardService(
         services=BoardServiceDependencies(
@@ -306,12 +305,13 @@ def invoke_cli():
         boards=boards,
         board_images=board_images,
         queue=MemoryInvocationQueue(),
-        graph_library=SqliteItemStorage[LibraryGraph](filename=db_location, table_name="graphs"),
+        graph_library=SqliteItemStorage[LibraryGraph](conn=db_conn, table_name="graphs"),
         graph_execution_manager=graph_execution_manager,
         processor=DefaultInvocationProcessor(),
         performance_statistics=InvocationStatsService(graph_execution_manager),
         logger=logger,
         configuration=config,
+        invocation_cache=MemoryInvocationCache(max_cache_size=config.node_cache_size),
     )
 
     system_graphs = create_system_graphs(services.graph_library)

invokeai/app/invocations/baseinvocation.py

@@ -3,10 +3,10 @@
 from __future__ import annotations
 
 import json
+import re
 from abc import ABC, abstractmethod
 from enum import Enum
 from inspect import signature
-import re
 from typing import (
     TYPE_CHECKING,
     AbstractSet,
@@ -23,10 +23,12 @@ from typing import (
     get_type_hints,
 )
 
-from pydantic import BaseModel, Field, validator
-from pydantic.fields import Undefined, ModelField
-from pydantic.typing import NoArgAnyCallable
 import semver
+from pydantic import BaseModel, Field, validator
+from pydantic.fields import ModelField, Undefined
+from pydantic.typing import NoArgAnyCallable
+
+from invokeai.app.services.config.invokeai_config import InvokeAIAppConfig
 
 if TYPE_CHECKING:
     from ..services.invocation_services import InvocationServices
@@ -196,6 +198,7 @@ class _InputField(BaseModel):
     ui_type: Optional[UIType]
     ui_component: Optional[UIComponent]
     ui_order: Optional[int]
+    ui_choice_labels: Optional[dict[str, str]]
     item_default: Optional[Any]
 
 
@@ -244,6 +247,7 @@ def InputField(
     ui_component: Optional[UIComponent] = None,
     ui_hidden: bool = False,
     ui_order: Optional[int] = None,
+    ui_choice_labels: Optional[dict[str, str]] = None,
     item_default: Optional[Any] = None,
     **kwargs: Any,
 ) -> Any:
@@ -310,6 +314,7 @@ def InputField(
         ui_hidden=ui_hidden,
         ui_order=ui_order,
         item_default=item_default,
+        ui_choice_labels=ui_choice_labels,
         **kwargs,
     )
 
@@ -412,12 +417,18 @@ class UIConfigBase(BaseModel):
 
 
 class InvocationContext:
+    """Initialized and provided to on execution of invocations."""
+
     services: InvocationServices
     graph_execution_state_id: str
+    queue_id: str
+    queue_item_id: str
 
-    def __init__(self, services: InvocationServices, graph_execution_state_id: str):
+    def __init__(self, services: InvocationServices, queue_id: str, queue_item_id: str, graph_execution_state_id: str):
         self.services = services
         self.graph_execution_state_id = graph_execution_state_id
+        self.queue_id = queue_id
+        self.queue_item_id = queue_item_id
 
 
 class BaseInvocationOutput(BaseModel):
@@ -470,6 +481,7 @@ class BaseInvocation(ABC, BaseModel):
 
     @classmethod
     def get_all_subclasses(cls):
+        app_config = InvokeAIAppConfig.get_config()
         subclasses = []
         toprocess = [cls]
         while len(toprocess) > 0:
@@ -477,7 +489,23 @@ class BaseInvocation(ABC, BaseModel):
             next_subclasses = next.__subclasses__()
             subclasses.extend(next_subclasses)
             toprocess.extend(next_subclasses)
-        return subclasses
+        allowed_invocations = []
+        for sc in subclasses:
+            is_in_allowlist = (
+                sc.__fields__.get("type").default in app_config.allow_nodes
+                if isinstance(app_config.allow_nodes, list)
+                else True
+            )
+
+            is_in_denylist = (
+                sc.__fields__.get("type").default in app_config.deny_nodes
+                if isinstance(app_config.deny_nodes, list)
+                else False
+            )
+
+            if is_in_allowlist and not is_in_denylist:
+                allowed_invocations.append(sc)
+        return allowed_invocations
 
     @classmethod
     def get_invocations(cls):
@@ -498,6 +526,9 @@ class BaseInvocation(ABC, BaseModel):
         return signature(cls.invoke).return_annotation
 
     class Config:
+        validate_assignment = True
+        validate_all = True
+
         @staticmethod
         def schema_extra(schema: dict[str, Any], model_class: Type[BaseModel]) -> None:
             uiconfig = getattr(model_class, "UIConfig", None)
@@ -546,8 +577,30 @@ class BaseInvocation(ABC, BaseModel):
                     raise RequiredConnectionException(self.__fields__["type"].default, field_name)
                 elif _input == Input.Any:
                     raise MissingInputException(self.__fields__["type"].default, field_name)
+
+        # skip node cache codepath if it's disabled
+        if context.services.configuration.node_cache_size == 0:
             return self.invoke(context)
 
+        output: BaseInvocationOutput
+        if self.use_cache:
+            key = context.services.invocation_cache.create_key(self)
+            cached_value = context.services.invocation_cache.get(key)
+            if cached_value is None:
+                context.services.logger.debug(f'Invocation cache miss for type "{self.get_type()}": {self.id}')
+                output = self.invoke(context)
+                context.services.invocation_cache.save(output)
+                return output
+            else:
+                context.services.logger.debug(f'Invocation cache hit for type "{self.get_type()}": {self.id}')
+                return cached_value
+        else:
+            context.services.logger.debug(f'Skipping invocation cache for "{self.get_type()}": {self.id}')
+            return self.invoke(context)
+
+    def get_type(self) -> str:
+        return self.__fields__["type"].default
+
     id: str = Field(
         description="The id of this instance of an invocation. Must be unique among all instances of invocations."
     )
@@ -559,6 +612,7 @@ class BaseInvocation(ABC, BaseModel):
         description="The workflow to save with the image",
         ui_type=UIType.WorkflowField,
     )
+    use_cache: bool = InputField(default=True, description="Whether or not to use the cache")
 
     @validator("workflow", pre=True)
     def validate_workflow_is_json(cls, v):
@@ -582,6 +636,7 @@ def invocation(
     tags: Optional[list[str]] = None,
     category: Optional[str] = None,
     version: Optional[str] = None,
+    use_cache: Optional[bool] = True,
 ) -> Callable[[Type[GenericBaseInvocation]], Type[GenericBaseInvocation]]:
     """
     Adds metadata to an invocation.
@@ -614,6 +669,8 @@ def invocation(
             except ValueError as e:
                 raise InvalidVersionError(f'Invalid version string for node "{invocation_type}": "{version}"') from e
             cls.UIConfig.version = version
+        if use_cache is not None:
+            cls.__fields__["use_cache"].default = use_cache
 
         # Add the invocation type to the pydantic model of the invocation
         invocation_type_annotation = Literal[invocation_type]  # type: ignore

invokeai/app/invocations/collections.py

@@ -38,14 +38,16 @@ class RangeInvocation(BaseInvocation):
     version="1.0.0",
 )
 class RangeOfSizeInvocation(BaseInvocation):
-    """Creates a range from start to start + size with step"""
+    """Creates a range from start to start + (size * step) incremented by step"""
 
     start: int = InputField(default=0, description="The start of the range")
-    size: int = InputField(default=1, description="The number of values")
+    size: int = InputField(default=1, gt=0, description="The number of values")
     step: int = InputField(default=1, description="The step of the range")
 
     def invoke(self, context: InvocationContext) -> IntegerCollectionOutput:
-        return IntegerCollectionOutput(collection=list(range(self.start, self.start + self.size, self.step)))
+        return IntegerCollectionOutput(
+            collection=list(range(self.start, self.start + (self.step * self.size), self.step))
+        )
 
 
 @invocation(
@@ -54,6 +56,7 @@ class RangeOfSizeInvocation(BaseInvocation):
     tags=["range", "integer", "random", "collection"],
     category="collections",
     version="1.0.0",
+    use_cache=False,
 )
 class RandomRangeInvocation(BaseInvocation):
     """Creates a collection of random numbers"""

invokeai/app/invocations/compel.py

@@ -5,16 +5,15 @@ from typing import List, Union
 import torch
 from compel import Compel, ReturnedEmbeddingsType
 from compel.prompt_parser import Blend, Conjunction, CrossAttentionControlSubstitute, FlattenedPrompt, Fragment
-from invokeai.app.invocations.primitives import ConditioningField, ConditioningOutput
 
+from invokeai.app.invocations.primitives import ConditioningField, ConditioningOutput
 from invokeai.backend.stable_diffusion.diffusion.shared_invokeai_diffusion import (
     BasicConditioningInfo,
     SDXLConditioningInfo,
 )
 
-from ...backend.model_management.models import ModelType
 from ...backend.model_management.lora import ModelPatcher
-from ...backend.model_management.models import ModelNotFoundException
+from ...backend.model_management.models import ModelNotFoundException, ModelType
 from ...backend.stable_diffusion.diffusion import InvokeAIDiffuserComponent
 from ...backend.util.devices import torch_dtype
 from .baseinvocation import (

invokeai/app/invocations/controlnet_image_processors.py

@@ -28,15 +28,14 @@ from pydantic import BaseModel, Field, validator
 
 from invokeai.app.invocations.primitives import ImageField, ImageOutput
 
-
 from ...backend.model_management import BaseModelType
 from ..models.image import ImageCategory, ResourceOrigin
 from .baseinvocation import (
     BaseInvocation,
     BaseInvocationOutput,
     FieldDescriptions,
-    InputField,
     Input,
+    InputField,
     InvocationContext,
     OutputField,
     UIType,
@@ -44,7 +43,6 @@ from .baseinvocation import (
     invocation_output,
 )
 
-
 CONTROLNET_MODE_VALUES = Literal["balanced", "more_prompt", "more_control", "unbalanced"]
 CONTROLNET_RESIZE_VALUES = Literal[
     "just_resize",

invokeai/app/invocations/cv.py

@@ -4,9 +4,10 @@
 import cv2 as cv
 import numpy
 from PIL import Image, ImageOps
-from invokeai.app.invocations.primitives import ImageField, ImageOutput
 
+from invokeai.app.invocations.primitives import ImageField, ImageOutput
 from invokeai.app.models.image import ImageCategory, ResourceOrigin
+
 from .baseinvocation import BaseInvocation, InputField, InvocationContext, invocation
 
 

invokeai/app/invocations/image.py

@@ -98,7 +98,7 @@ class ImageCropInvocation(BaseInvocation):
         )
 
 
-@invocation("img_paste", title="Paste Image", tags=["image", "paste"], category="image", version="1.0.0")
+@invocation("img_paste", title="Paste Image", tags=["image", "paste"], category="image", version="1.0.1")
 class ImagePasteInvocation(BaseInvocation):
     """Pastes an image into another image."""
 
@@ -110,6 +110,7 @@ class ImagePasteInvocation(BaseInvocation):
     )
     x: int = InputField(default=0, description="The left x coordinate at which to paste the image")
     y: int = InputField(default=0, description="The top y coordinate at which to paste the image")
+    crop: bool = InputField(default=False, description="Crop to base image dimensions")
 
     def invoke(self, context: InvocationContext) -> ImageOutput:
         base_image = context.services.images.get_pil_image(self.base_image.image_name)
@@ -129,6 +130,10 @@ class ImagePasteInvocation(BaseInvocation):
         new_image.paste(base_image, (abs(min_x), abs(min_y)))
         new_image.paste(image, (max(0, self.x), max(0, self.y)), mask=mask)
 
+        if self.crop:
+            base_w, base_h = base_image.size
+            new_image = new_image.crop((abs(min_x), abs(min_y), abs(min_x) + base_w, abs(min_y) + base_h))
+
         image_dto = context.services.images.create(
             image=new_image,
             image_origin=ResourceOrigin.INTERNAL,
@@ -330,8 +335,8 @@ class ImageResizeInvocation(BaseInvocation):
     """Resizes an image to specific dimensions"""
 
     image: ImageField = InputField(description="The image to resize")
-    width: int = InputField(default=512, ge=64, multiple_of=8, description="The width to resize to (px)")
-    height: int = InputField(default=512, ge=64, multiple_of=8, description="The height to resize to (px)")
+    width: int = InputField(default=512, gt=0, description="The width to resize to (px)")
+    height: int = InputField(default=512, gt=0, description="The height to resize to (px)")
     resample_mode: PIL_RESAMPLING_MODES = InputField(default="bicubic", description="The resampling mode")
     metadata: Optional[CoreMetadata] = InputField(
         default=None, description=FieldDescriptions.core_metadata, ui_hidden=True
@@ -960,3 +965,42 @@ class ImageChannelMultiplyInvocation(BaseInvocation):
             width=image_dto.width,
             height=image_dto.height,
         )
+
+
+@invocation(
+    "save_image",
+    title="Save Image",
+    tags=["primitives", "image"],
+    category="primitives",
+    version="1.0.0",
+    use_cache=False,
+)
+class SaveImageInvocation(BaseInvocation):
+    """Saves an image. Unlike an image primitive, this invocation stores a copy of the image."""
+
+    image: ImageField = InputField(description="The image to load")
+    metadata: CoreMetadata = InputField(
+        default=None,
+        description=FieldDescriptions.core_metadata,
+        ui_hidden=True,
+    )
+
+    def invoke(self, context: InvocationContext) -> ImageOutput:
+        image = context.services.images.get_pil_image(self.image.image_name)
+
+        image_dto = context.services.images.create(
+            image=image,
+            image_origin=ResourceOrigin.INTERNAL,
+            image_category=ImageCategory.GENERAL,
+            node_id=self.id,
+            session_id=context.graph_execution_state_id,
+            is_intermediate=self.is_intermediate,
+            metadata=self.metadata.dict() if self.metadata else None,
+            workflow=self.workflow,
+        )
+
+        return ImageOutput(
+            image=ImageField(image_name=image_dto.image_name),
+            width=image_dto.width,
+            height=image_dto.height,
+        )

invokeai/app/invocations/latent.py

@@ -34,8 +34,8 @@ from invokeai.app.util.step_callback import stable_diffusion_step_callback
 from invokeai.backend.model_management.models import ModelType, SilenceWarnings
 
 from ...backend.model_management.lora import ModelPatcher
-from ...backend.model_management.seamless import set_seamless
 from ...backend.model_management.models import BaseModelType
+from ...backend.model_management.seamless import set_seamless
 from ...backend.stable_diffusion import PipelineIntermediateState
 from ...backend.stable_diffusion.diffusers_pipeline import (
     ConditioningData,
@@ -63,6 +63,9 @@ from .compel import ConditioningField
 from .controlnet_image_processors import ControlField
 from .model import ModelInfo, UNetField, VaeField
 
+if choose_torch_device() == torch.device("mps"):
+    from torch import mps
+
 DEFAULT_PRECISION = choose_precision(choose_torch_device())
 
 
@@ -541,6 +544,8 @@ class DenoiseLatentsInvocation(BaseInvocation):
             # https://discuss.huggingface.co/t/memory-usage-by-later-pipeline-stages/23699
             result_latents = result_latents.to("cpu")
             torch.cuda.empty_cache()
+            if choose_torch_device() == torch.device("mps"):
+                mps.empty_cache()
 
             name = f"{context.graph_execution_state_id}__{self.id}"
             context.services.latents.save(name, result_latents)
@@ -612,6 +617,8 @@ class LatentsToImageInvocation(BaseInvocation):
 
             # clear memory as vae decode can request a lot
             torch.cuda.empty_cache()
+            if choose_torch_device() == torch.device("mps"):
+                mps.empty_cache()
 
             with torch.inference_mode():
                 # copied from diffusers pipeline
@@ -624,6 +631,8 @@ class LatentsToImageInvocation(BaseInvocation):
                 image = VaeImageProcessor.numpy_to_pil(np_image)[0]
 
         torch.cuda.empty_cache()
+        if choose_torch_device() == torch.device("mps"):
+            mps.empty_cache()
 
         image_dto = context.services.images.create(
             image=image,
@@ -683,6 +692,8 @@ class ResizeLatentsInvocation(BaseInvocation):
         # https://discuss.huggingface.co/t/memory-usage-by-later-pipeline-stages/23699
         resized_latents = resized_latents.to("cpu")
         torch.cuda.empty_cache()
+        if device == torch.device("mps"):
+            mps.empty_cache()
 
         name = f"{context.graph_execution_state_id}__{self.id}"
         # context.services.latents.set(name, resized_latents)
@@ -719,6 +730,8 @@ class ScaleLatentsInvocation(BaseInvocation):
         # https://discuss.huggingface.co/t/memory-usage-by-later-pipeline-stages/23699
         resized_latents = resized_latents.to("cpu")
         torch.cuda.empty_cache()
+        if device == torch.device("mps"):
+            mps.empty_cache()
 
         name = f"{context.graph_execution_state_id}__{self.id}"
         # context.services.latents.set(name, resized_latents)
@@ -875,6 +888,8 @@ class BlendLatentsInvocation(BaseInvocation):
         # https://discuss.huggingface.co/t/memory-usage-by-later-pipeline-stages/23699
         blended_latents = blended_latents.to("cpu")
         torch.cuda.empty_cache()
+        if device == torch.device("mps"):
+            mps.empty_cache()
 
         name = f"{context.graph_execution_state_id}__{self.id}"
         # context.services.latents.set(name, resized_latents)

invokeai/app/invocations/math.py

@@ -1,8 +1,11 @@
 # Copyright (c) 2023 Kyle Schouviller (https://github.com/kyle0654)
 
-import numpy as np
+from typing import Literal
 
-from invokeai.app.invocations.primitives import IntegerOutput
+import numpy as np
+from pydantic import validator
+
+from invokeai.app.invocations.primitives import FloatOutput, IntegerOutput
 
 from .baseinvocation import BaseInvocation, FieldDescriptions, InputField, InvocationContext, invocation
 
@@ -51,7 +54,14 @@ class DivideInvocation(BaseInvocation):
         return IntegerOutput(value=int(self.a / self.b))
 
 
-@invocation("rand_int", title="Random Integer", tags=["math", "random"], category="math", version="1.0.0")
+@invocation(
+    "rand_int",
+    title="Random Integer",
+    tags=["math", "random"],
+    category="math",
+    version="1.0.0",
+    use_cache=False,
+)
 class RandomIntInvocation(BaseInvocation):
     """Outputs a single random integer."""
 
@@ -60,3 +70,201 @@ class RandomIntInvocation(BaseInvocation):
 
     def invoke(self, context: InvocationContext) -> IntegerOutput:
         return IntegerOutput(value=np.random.randint(self.low, self.high))
+
+
+@invocation(
+    "float_to_int",
+    title="Float To Integer",
+    tags=["math", "round", "integer", "float", "convert"],
+    category="math",
+    version="1.0.0",
+)
+class FloatToIntegerInvocation(BaseInvocation):
+    """Rounds a float number to (a multiple of) an integer."""
+
+    value: float = InputField(default=0, description="The value to round")
+    multiple: int = InputField(default=1, ge=1, title="Multiple of", description="The multiple to round to")
+    method: Literal["Nearest", "Floor", "Ceiling", "Truncate"] = InputField(
+        default="Nearest", description="The method to use for rounding"
+    )
+
+    def invoke(self, context: InvocationContext) -> IntegerOutput:
+        if self.method == "Nearest":
+            return IntegerOutput(value=round(self.value / self.multiple) * self.multiple)
+        elif self.method == "Floor":
+            return IntegerOutput(value=np.floor(self.value / self.multiple) * self.multiple)
+        elif self.method == "Ceiling":
+            return IntegerOutput(value=np.ceil(self.value / self.multiple) * self.multiple)
+        else:  # self.method == "Truncate"
+            return IntegerOutput(value=int(self.value / self.multiple) * self.multiple)
+
+
+@invocation("round_float", title="Round Float", tags=["math", "round"], category="math", version="1.0.0")
+class RoundInvocation(BaseInvocation):
+    """Rounds a float to a specified number of decimal places."""
+
+    value: float = InputField(default=0, description="The float value")
+    decimals: int = InputField(default=0, description="The number of decimal places")
+
+    def invoke(self, context: InvocationContext) -> FloatOutput:
+        return FloatOutput(value=round(self.value, self.decimals))
+
+
+INTEGER_OPERATIONS = Literal[
+    "ADD",
+    "SUB",
+    "MUL",
+    "DIV",
+    "EXP",
+    "MOD",
+    "ABS",
+    "MIN",
+    "MAX",
+]
+
+
+INTEGER_OPERATIONS_LABELS = dict(
+    ADD="Add A+B",
+    SUB="Subtract A-B",
+    MUL="Multiply A*B",
+    DIV="Divide A/B",
+    EXP="Exponentiate A^B",
+    MOD="Modulus A%B",
+    ABS="Absolute Value of A",
+    MIN="Minimum(A,B)",
+    MAX="Maximum(A,B)",
+)
+
+
+@invocation(
+    "integer_math",
+    title="Integer Math",
+    tags=[
+        "math",
+        "integer",
+        "add",
+        "subtract",
+        "multiply",
+        "divide",
+        "modulus",
+        "power",
+        "absolute value",
+        "min",
+        "max",
+    ],
+    category="math",
+    version="1.0.0",
+)
+class IntegerMathInvocation(BaseInvocation):
+    """Performs integer math."""
+
+    operation: INTEGER_OPERATIONS = InputField(
+        default="ADD", description="The operation to perform", ui_choice_labels=INTEGER_OPERATIONS_LABELS
+    )
+    a: int = InputField(default=0, description=FieldDescriptions.num_1)
+    b: int = InputField(default=0, description=FieldDescriptions.num_2)
+
+    @validator("b")
+    def no_unrepresentable_results(cls, v, values):
+        if values["operation"] == "DIV" and v == 0:
+            raise ValueError("Cannot divide by zero")
+        elif values["operation"] == "MOD" and v == 0:
+            raise ValueError("Cannot divide by zero")
+        elif values["operation"] == "EXP" and v < 0:
+            raise ValueError("Result of exponentiation is not an integer")
+        return v
+
+    def invoke(self, context: InvocationContext) -> IntegerOutput:
+        # Python doesn't support switch statements until 3.10, but InvokeAI supports back to 3.9
+        if self.operation == "ADD":
+            return IntegerOutput(value=self.a + self.b)
+        elif self.operation == "SUB":
+            return IntegerOutput(value=self.a - self.b)
+        elif self.operation == "MUL":
+            return IntegerOutput(value=self.a * self.b)
+        elif self.operation == "DIV":
+            return IntegerOutput(value=int(self.a / self.b))
+        elif self.operation == "EXP":
+            return IntegerOutput(value=self.a**self.b)
+        elif self.operation == "MOD":
+            return IntegerOutput(value=self.a % self.b)
+        elif self.operation == "ABS":
+            return IntegerOutput(value=abs(self.a))
+        elif self.operation == "MIN":
+            return IntegerOutput(value=min(self.a, self.b))
+        else:  # self.operation == "MAX":
+            return IntegerOutput(value=max(self.a, self.b))
+
+
+FLOAT_OPERATIONS = Literal[
+    "ADD",
+    "SUB",
+    "MUL",
+    "DIV",
+    "EXP",
+    "ABS",
+    "SQRT",
+    "MIN",
+    "MAX",
+]
+
+
+FLOAT_OPERATIONS_LABELS = dict(
+    ADD="Add A+B",
+    SUB="Subtract A-B",
+    MUL="Multiply A*B",
+    DIV="Divide A/B",
+    EXP="Exponentiate A^B",
+    ABS="Absolute Value of A",
+    SQRT="Square Root of A",
+    MIN="Minimum(A,B)",
+    MAX="Maximum(A,B)",
+)
+
+
+@invocation(
+    "float_math",
+    title="Float Math",
+    tags=["math", "float", "add", "subtract", "multiply", "divide", "power", "root", "absolute value", "min", "max"],
+    category="math",
+    version="1.0.0",
+)
+class FloatMathInvocation(BaseInvocation):
+    """Performs floating point math."""
+
+    operation: FLOAT_OPERATIONS = InputField(
+        default="ADD", description="The operation to perform", ui_choice_labels=FLOAT_OPERATIONS_LABELS
+    )
+    a: float = InputField(default=0, description=FieldDescriptions.num_1)
+    b: float = InputField(default=0, description=FieldDescriptions.num_2)
+
+    @validator("b")
+    def no_unrepresentable_results(cls, v, values):
+        if values["operation"] == "DIV" and v == 0:
+            raise ValueError("Cannot divide by zero")
+        elif values["operation"] == "EXP" and values["a"] == 0 and v < 0:
+            raise ValueError("Cannot raise zero to a negative power")
+        elif values["operation"] == "EXP" and type(values["a"] ** v) is complex:
+            raise ValueError("Root operation resulted in a complex number")
+        return v
+
+    def invoke(self, context: InvocationContext) -> FloatOutput:
+        # Python doesn't support switch statements until 3.10, but InvokeAI supports back to 3.9
+        if self.operation == "ADD":
+            return FloatOutput(value=self.a + self.b)
+        elif self.operation == "SUB":
+            return FloatOutput(value=self.a - self.b)
+        elif self.operation == "MUL":
+            return FloatOutput(value=self.a * self.b)
+        elif self.operation == "DIV":
+            return FloatOutput(value=self.a / self.b)
+        elif self.operation == "EXP":
+            return FloatOutput(value=self.a**self.b)
+        elif self.operation == "SQRT":
+            return FloatOutput(value=np.sqrt(self.a))
+        elif self.operation == "ABS":
+            return FloatOutput(value=abs(self.a))
+        elif self.operation == "MIN":
+            return FloatOutput(value=min(self.a, self.b))
+        else:  # self.operation == "MAX":
+            return FloatOutput(value=max(self.a, self.b))

invokeai/app/invocations/onnx.py

@@ -25,8 +25,8 @@ from .baseinvocation import (
     BaseInvocation,
     BaseInvocationOutput,
     FieldDescriptions,
-    InputField,
     Input,
+    InputField,
     InvocationContext,
     OutputField,
     UIComponent,

invokeai/app/invocations/param_easing.py

@@ -3,7 +3,6 @@ from typing import Literal, Optional
 
 import matplotlib.pyplot as plt
 import numpy as np
-
 import PIL.Image
 from easing_functions import (
     BackEaseIn,

invokeai/app/invocations/prompt.py

@@ -10,7 +10,14 @@ from invokeai.app.invocations.primitives import StringCollectionOutput
 from .baseinvocation import BaseInvocation, InputField, InvocationContext, UIComponent, invocation
 
 
-@invocation("dynamic_prompt", title="Dynamic Prompt", tags=["prompt", "collection"], category="prompt", version="1.0.0")
+@invocation(
+    "dynamic_prompt",
+    title="Dynamic Prompt",
+    tags=["prompt", "collection"],
+    category="prompt",
+    version="1.0.0",
+    use_cache=False,
+)
 class DynamicPromptInvocation(BaseInvocation):
     """Parses a prompt using adieyal/dynamicprompts' random or combinatorial generator"""
 

invokeai/app/invocations/strings.py

@@ -0,0 +1,139 @@
+# 2023 skunkworxdark (https://github.com/skunkworxdark)
+
+import re
+
+from .baseinvocation import (
+    BaseInvocation,
+    BaseInvocationOutput,
+    InputField,
+    InvocationContext,
+    OutputField,
+    UIComponent,
+    invocation,
+    invocation_output,
+)
+from .primitives import StringOutput
+
+
+@invocation_output("string_pos_neg_output")
+class StringPosNegOutput(BaseInvocationOutput):
+    """Base class for invocations that output a positive and negative string"""
+
+    positive_string: str = OutputField(description="Positive string")
+    negative_string: str = OutputField(description="Negative string")
+
+
+@invocation(
+    "string_split_neg",
+    title="String Split Negative",
+    tags=["string", "split", "negative"],
+    category="string",
+    version="1.0.0",
+)
+class StringSplitNegInvocation(BaseInvocation):
+    """Splits string into two strings, inside [] goes into negative string everthing else goes into positive string. Each [ and ] character is replaced with a space"""
+
+    string: str = InputField(default="", description="String to split", ui_component=UIComponent.Textarea)
+
+    def invoke(self, context: InvocationContext) -> StringPosNegOutput:
+        p_string = ""
+        n_string = ""
+        brackets_depth = 0
+        escaped = False
+
+        for char in self.string or "":
+            if char == "[" and not escaped:
+                n_string += " "
+                brackets_depth += 1
+            elif char == "]" and not escaped:
+                brackets_depth -= 1
+                char = " "
+            elif brackets_depth > 0:
+                n_string += char
+            else:
+                p_string += char
+
+            # keep track of the escape char but only if it isn't escaped already
+            if char == "\\" and not escaped:
+                escaped = True
+            else:
+                escaped = False
+
+        return StringPosNegOutput(positive_string=p_string, negative_string=n_string)
+
+
+@invocation_output("string_2_output")
+class String2Output(BaseInvocationOutput):
+    """Base class for invocations that output two strings"""
+
+    string_1: str = OutputField(description="string 1")
+    string_2: str = OutputField(description="string 2")
+
+
+@invocation("string_split", title="String Split", tags=["string", "split"], category="string", version="1.0.0")
+class StringSplitInvocation(BaseInvocation):
+    """Splits string into two strings, based on the first occurance of the delimiter. The delimiter will be removed from the string"""
+
+    string: str = InputField(default="", description="String to split", ui_component=UIComponent.Textarea)
+    delimiter: str = InputField(
+        default="", description="Delimiter to spilt with. blank will split on the first whitespace"
+    )
+
+    def invoke(self, context: InvocationContext) -> String2Output:
+        result = self.string.split(self.delimiter, 1)
+        if len(result) == 2:
+            part1, part2 = result
+        else:
+            part1 = result[0]
+            part2 = ""
+
+        return String2Output(string_1=part1, string_2=part2)
+
+
+@invocation("string_join", title="String Join", tags=["string", "join"], category="string", version="1.0.0")
+class StringJoinInvocation(BaseInvocation):
+    """Joins string left to string right"""
+
+    string_left: str = InputField(default="", description="String Left", ui_component=UIComponent.Textarea)
+    string_right: str = InputField(default="", description="String Right", ui_component=UIComponent.Textarea)
+
+    def invoke(self, context: InvocationContext) -> StringOutput:
+        return StringOutput(value=((self.string_left or "") + (self.string_right or "")))
+
+
+@invocation("string_join_three", title="String Join Three", tags=["string", "join"], category="string", version="1.0.0")
+class StringJoinThreeInvocation(BaseInvocation):
+    """Joins string left to string middle to string right"""
+
+    string_left: str = InputField(default="", description="String Left", ui_component=UIComponent.Textarea)
+    string_middle: str = InputField(default="", description="String Middle", ui_component=UIComponent.Textarea)
+    string_right: str = InputField(default="", description="String Right", ui_component=UIComponent.Textarea)
+
+    def invoke(self, context: InvocationContext) -> StringOutput:
+        return StringOutput(value=((self.string_left or "") + (self.string_middle or "") + (self.string_right or "")))
+
+
+@invocation(
+    "string_replace", title="String Replace", tags=["string", "replace", "regex"], category="string", version="1.0.0"
+)
+class StringReplaceInvocation(BaseInvocation):
+    """Replaces the search string with the replace string"""
+
+    string: str = InputField(default="", description="String to work on", ui_component=UIComponent.Textarea)
+    search_string: str = InputField(default="", description="String to search for", ui_component=UIComponent.Textarea)
+    replace_string: str = InputField(
+        default="", description="String to replace the search", ui_component=UIComponent.Textarea
+    )
+    use_regex: bool = InputField(
+        default=False, description="Use search string as a regex expression (non regex is case insensitive)"
+    )
+
+    def invoke(self, context: InvocationContext) -> StringOutput:
+        pattern = self.search_string or ""
+        new_string = self.string or ""
+        if len(pattern) > 0:
+            if not self.use_regex:
+                # None regex so make case insensitve
+                pattern = "(?i)" + re.escape(pattern)
+            new_string = re.sub(pattern, (self.replace_string or ""), new_string)
+        return StringOutput(value=new_string)

invokeai/app/invocations/upscale.py

@@ -7,8 +7,8 @@ import numpy as np
 from basicsr.archs.rrdbnet_arch import RRDBNet
 from PIL import Image
 from realesrgan import RealESRGANer
-from invokeai.app.invocations.primitives import ImageField, ImageOutput
 
+from invokeai.app.invocations.primitives import ImageField, ImageOutput
 from invokeai.app.models.image import ImageCategory, ResourceOrigin
 
 from .baseinvocation import BaseInvocation, InputField, InvocationContext, invocation

invokeai/app/services/board_image_record_storage.py

@@ -1,13 +1,10 @@
-from abc import ABC, abstractmethod
 import sqlite3
 import threading
+from abc import ABC, abstractmethod
 from typing import Optional, cast
 
 from invokeai.app.services.image_record_storage import OffsetPaginatedResults
-from invokeai.app.services.models.image_record import (
-    ImageRecord,
-    deserialize_image_record,
-)
+from invokeai.app.services.models.image_record import ImageRecord, deserialize_image_record
 
 
 class BoardImageRecordStorageBase(ABC):
@@ -56,24 +53,20 @@ class BoardImageRecordStorageBase(ABC):
 
 
 class SqliteBoardImageRecordStorage(BoardImageRecordStorageBase):
-    _filename: str
     _conn: sqlite3.Connection
     _cursor: sqlite3.Cursor
     _lock: threading.Lock
 
-    def __init__(self, filename: str) -> None:
+    def __init__(self, conn: sqlite3.Connection, lock: threading.Lock) -> None:
         super().__init__()
-        self._filename = filename
-        self._conn = sqlite3.connect(filename, check_same_thread=False)
+        self._conn = conn
         # Enable row factory to get rows as dictionaries (must be done before making the cursor!)
         self._conn.row_factory = sqlite3.Row
         self._cursor = self._conn.cursor()
-        self._lock = threading.Lock()
+        self._lock = lock
 
         try:
             self._lock.acquire()
-            # Enable foreign keys
-            self._conn.execute("PRAGMA foreign_keys = ON;")
             self._create_tables()
             self._conn.commit()
         finally:

invokeai/app/services/board_images.py

@@ -1,12 +1,9 @@
 from abc import ABC, abstractmethod
 from logging import Logger
 from typing import Optional
-from invokeai.app.services.board_image_record_storage import BoardImageRecordStorageBase
-from invokeai.app.services.board_record_storage import (
-    BoardRecord,
-    BoardRecordStorageBase,
-)
 
+from invokeai.app.services.board_image_record_storage import BoardImageRecordStorageBase
+from invokeai.app.services.board_record_storage import BoardRecord, BoardRecordStorageBase
 from invokeai.app.services.image_record_storage import ImageRecordStorageBase
 from invokeai.app.services.models.board_record import BoardDTO
 from invokeai.app.services.urls import UrlServiceBase

invokeai/app/services/board_record_storage.py

@@ -1,15 +1,13 @@
+import sqlite3
 import threading
-import uuid
 from abc import ABC, abstractmethod
 from typing import Optional, Union, cast
 
-import sqlite3
+from pydantic import BaseModel, Extra, Field
+
 from invokeai.app.services.image_record_storage import OffsetPaginatedResults
-from invokeai.app.services.models.board_record import (
-    BoardRecord,
-    deserialize_board_record,
-)
-from pydantic import BaseModel, Field, Extra
+from invokeai.app.services.models.board_record import BoardRecord, deserialize_board_record
+from invokeai.app.util.misc import uuid_string
 
 
 class BoardChanges(BaseModel, extra=Extra.forbid):
@@ -89,24 +87,20 @@ class BoardRecordStorageBase(ABC):
 
 
 class SqliteBoardRecordStorage(BoardRecordStorageBase):
-    _filename: str
     _conn: sqlite3.Connection
     _cursor: sqlite3.Cursor
     _lock: threading.Lock
 
-    def __init__(self, filename: str) -> None:
+    def __init__(self, conn: sqlite3.Connection, lock: threading.Lock) -> None:
         super().__init__()
-        self._filename = filename
-        self._conn = sqlite3.connect(filename, check_same_thread=False)
+        self._conn = conn
         # Enable row factory to get rows as dictionaries (must be done before making the cursor!)
         self._conn.row_factory = sqlite3.Row
         self._cursor = self._conn.cursor()
-        self._lock = threading.Lock()
+        self._lock = lock
 
         try:
             self._lock.acquire()
-            # Enable foreign keys
-            self._conn.execute("PRAGMA foreign_keys = ON;")
             self._create_tables()
             self._conn.commit()
         finally:
@@ -176,7 +170,7 @@ class SqliteBoardRecordStorage(BoardRecordStorageBase):
         board_name: str,
     ) -> BoardRecord:
         try:
-            board_id = str(uuid.uuid4())
+            board_id = uuid_string()
             self._lock.acquire()
             self._cursor.execute(
                 """--sql

invokeai/app/services/boards.py

@@ -1,17 +1,10 @@
 from abc import ABC, abstractmethod
-
 from logging import Logger
+
 from invokeai.app.services.board_image_record_storage import BoardImageRecordStorageBase
 from invokeai.app.services.board_images import board_record_to_dto
-
-from invokeai.app.services.board_record_storage import (
-    BoardChanges,
-    BoardRecordStorageBase,
-)
-from invokeai.app.services.image_record_storage import (
-    ImageRecordStorageBase,
-    OffsetPaginatedResults,
-)
+from invokeai.app.services.board_record_storage import BoardChanges, BoardRecordStorageBase
+from invokeai.app.services.image_record_storage import ImageRecordStorageBase, OffsetPaginatedResults
 from invokeai.app.services.models.board_record import BoardDTO
 from invokeai.app.services.urls import UrlServiceBase
 

invokeai/app/services/config/__init__.py

@@ -2,8 +2,5 @@
 Init file for InvokeAI configure package
 """
 
-from .invokeai_config import (  # noqa F401
-    InvokeAIAppConfig,
-    get_invokeai_config,
-)
 from .base import PagingArgumentParser  # noqa F401
+from .invokeai_config import InvokeAIAppConfig, get_invokeai_config  # noqa F401

invokeai/app/services/config/base.py

@@ -9,15 +9,17 @@ the command line.
 """
 
 from __future__ import annotations
+
 import argparse
 import os
 import pydoc
 import sys
 from argparse import ArgumentParser
-from omegaconf import OmegaConf, DictConfig, ListConfig
 from pathlib import Path
+from typing import ClassVar, Dict, List, Literal, Optional, Union, get_args, get_origin, get_type_hints
+
+from omegaconf import DictConfig, ListConfig, OmegaConf
 from pydantic import BaseSettings
-from typing import ClassVar, Dict, List, Literal, Union, get_origin, get_type_hints, get_args
 
 
 class PagingArgumentParser(argparse.ArgumentParser):
@@ -37,12 +39,14 @@ class InvokeAISettings(BaseSettings):
     read from an omegaconf .yaml file.
     """
 
-    initconf: ClassVar[DictConfig] = None
+    initconf: ClassVar[Optional[DictConfig]] = None
     argparse_groups: ClassVar[Dict] = {}
 
-    def parse_args(self, argv: list = sys.argv[1:]):
+    def parse_args(self, argv: Optional[list] = sys.argv[1:]):
         parser = self.get_parser()
-        opt = parser.parse_args(argv)
+        opt, unknown_opts = parser.parse_known_args(argv)
+        if len(unknown_opts) > 0:
+            print("Unknown args:", unknown_opts)
         for name in self.__fields__:
             if name not in self._excluded():
                 value = getattr(opt, name)
@@ -79,7 +83,8 @@ class InvokeAISettings(BaseSettings):
         else:
             settings_stanza = "Uncategorized"
 
-        env_prefix = cls.Config.env_prefix if hasattr(cls.Config, "env_prefix") else settings_stanza.upper()
+        env_prefix = getattr(cls.Config, "env_prefix", None)
+        env_prefix = env_prefix if env_prefix is not None else settings_stanza.upper()
 
         initconf = (
             cls.initconf.get(settings_stanza)
@@ -112,8 +117,8 @@ class InvokeAISettings(BaseSettings):
                 field.default = current_default
 
     @classmethod
-    def cmd_name(self, command_field: str = "type") -> str:
-        hints = get_type_hints(self)
+    def cmd_name(cls, command_field: str = "type") -> str:
+        hints = get_type_hints(cls)
         if command_field in hints:
             return get_args(hints[command_field])[0]
         else:
@@ -129,16 +134,12 @@ class InvokeAISettings(BaseSettings):
         return parser
 
     @classmethod
-    def add_subparser(cls, parser: argparse.ArgumentParser):
-        parser.add_parser(cls.cmd_name(), help=cls.__doc__)
-
-    @classmethod
-    def _excluded(self) -> List[str]:
+    def _excluded(cls) -> List[str]:
         # internal fields that shouldn't be exposed as command line options
         return ["type", "initconf"]
 
     @classmethod
-    def _excluded_from_yaml(self) -> List[str]:
+    def _excluded_from_yaml(cls) -> List[str]:
         # combination of deprecated parameters and internal ones that shouldn't be exposed as invokeai.yaml options
         return [
             "type",

invokeai/app/services/config/invokeai_config.py

@@ -172,9 +172,9 @@ from __future__ import annotations
 
 import os
 from pathlib import Path
-from typing import ClassVar, Dict, List, Literal, Union, get_type_hints, Optional
+from typing import ClassVar, Dict, List, Literal, Optional, Union, get_type_hints
 
-from omegaconf import OmegaConf, DictConfig
+from omegaconf import DictConfig, OmegaConf
 from pydantic import Field, parse_obj_as
 
 from .base import InvokeAISettings
@@ -194,8 +194,8 @@ class InvokeAIAppConfig(InvokeAISettings):
     setting environment variables INVOKEAI_<setting>.
     """
 
-    singleton_config: ClassVar[InvokeAIAppConfig] = None
-    singleton_init: ClassVar[Dict] = None
+    singleton_config: ClassVar[Optional[InvokeAIAppConfig]] = None
+    singleton_init: ClassVar[Optional[Dict]] = None
 
     # fmt: off
     type: Literal["InvokeAI"] = "InvokeAI"
@@ -234,6 +234,7 @@ class InvokeAIAppConfig(InvokeAISettings):
     # note - would be better to read the log_format values from logging.py, but this creates circular dependencies issues
     log_format          : Literal['plain', 'color', 'syslog', 'legacy'] = Field(default="color", description='Log format. Use "plain" for text-only, "color" for colorized output, "legacy" for 2.3-style logging and "syslog" for syslog-style', category="Logging")
     log_level           : Literal["debug", "info", "warning", "error", "critical"] = Field(default="info", description="Emit logging messages at this level or  higher", category="Logging")
+    log_sql             : bool = Field(default=False, description="Log SQL queries", category="Logging")
 
     dev_reload          : bool = Field(default=False, description="Automatically reload when Python sources are changed.", category="Development")
 
@@ -245,15 +246,24 @@ class InvokeAIAppConfig(InvokeAISettings):
     lazy_offload        : bool = Field(default=True, description="Keep models in VRAM until their space is needed", category="Model Cache", )
 
     # DEVICE
-    device              : Literal[tuple(["auto", "cpu", "cuda", "cuda:1", "mps"])] = Field(default="auto", description="Generation device", category="Device", )
-    precision: Literal[tuple(["auto", "float16", "float32", "autocast"])] = Field(default="auto", description="Floating point precision", category="Device", )
+    device              : Literal["auto", "cpu", "cuda", "cuda:1", "mps"] = Field(default="auto", description="Generation device", category="Device", )
+    precision           : Literal["auto", "float16", "float32", "autocast"] = Field(default="auto", description="Floating point precision", category="Device", )
 
     # GENERATION
     sequential_guidance : bool = Field(default=False, description="Whether to calculate guidance in serial instead of in parallel, lowering memory requirements", category="Generation", )
-    attention_type      : Literal[tuple(["auto", "normal", "xformers", "sliced", "torch-sdp"])] = Field(default="auto", description="Attention type", category="Generation", )
-    attention_slice_size: Literal[tuple(["auto", "balanced", "max", 1, 2, 3, 4, 5, 6, 7, 8])] = Field(default="auto", description='Slice size, valid when attention_type=="sliced"', category="Generation", )
+    attention_type      : Literal["auto", "normal", "xformers", "sliced", "torch-sdp"] = Field(default="auto", description="Attention type", category="Generation", )
+    attention_slice_size: Literal["auto", "balanced", "max", 1, 2, 3, 4, 5, 6, 7, 8] = Field(default="auto", description='Slice size, valid when attention_type=="sliced"', category="Generation", )
+    force_tiled_decode  : bool = Field(default=False, description="Whether to enable tiled VAE decode (reduces memory consumption with some performance penalty)", category="Generation",)
     force_tiled_decode: bool = Field(default=False, description="Whether to enable tiled VAE decode (reduces memory consumption with some performance penalty)", category="Generation",)
 
+    # QUEUE
+    max_queue_size      : int = Field(default=10000, gt=0, description="Maximum number of items in the session queue", category="Queue", )
+
+    # NODES
+    allow_nodes         : Optional[List[str]] = Field(default=None, description="List of nodes to allow. Omit to allow all.", category="Nodes")
+    deny_nodes          : Optional[List[str]] = Field(default=None, description="List of nodes to deny. Omit to deny none.", category="Nodes")
+    node_cache_size     : int = Field(default=512, description="How many cached nodes to keep in memory", category="Nodes", )
+
     # DEPRECATED FIELDS - STILL HERE IN ORDER TO OBTAN VALUES FROM PRE-3.1 CONFIG FILES
     always_use_cpu      : bool = Field(default=False, description="If true, use the CPU for rendering even if a GPU is available.", category='Memory/Performance')
     free_gpu_mem        : Optional[bool] = Field(default=None, description="If true, purge model from GPU after each generation.", category='Memory/Performance')
@@ -268,7 +278,7 @@ class InvokeAIAppConfig(InvokeAISettings):
     class Config:
         validate_assignment = True
 
-    def parse_args(self, argv: List[str] = None, conf: DictConfig = None, clobber=False):
+    def parse_args(self, argv: Optional[list[str]] = None, conf: Optional[DictConfig] = None, clobber=False):
         """
         Update settings with contents of init file, environment, and
         command-line settings.
@@ -279,11 +289,15 @@ class InvokeAIAppConfig(InvokeAISettings):
         # Set the runtime root directory. We parse command-line switches here
         # in order to pick up the --root_dir option.
         super().parse_args(argv)
+        loaded_conf = None
         if conf is None:
             try:
-                conf = OmegaConf.load(self.root_dir / INIT_FILE)
+                loaded_conf = OmegaConf.load(self.root_dir / INIT_FILE)
             except Exception:
                 pass
+        if isinstance(loaded_conf, DictConfig):
+            InvokeAISettings.initconf = loaded_conf
+        else:
             InvokeAISettings.initconf = conf
 
         # parse args again in order to pick up settings in configuration file
@@ -372,13 +386,6 @@ class InvokeAIAppConfig(InvokeAISettings):
         """
         return self._resolve(self.models_dir)
 
-    @property
-    def autoconvert_path(self) -> Path:
-        """
-        Path to the directory containing models to be imported automatically at startup.
-        """
-        return self._resolve(self.autoconvert_dir) if self.autoconvert_dir else None
-
     # the following methods support legacy calls leftover from the Globals era
     @property
     def full_precision(self) -> bool:
@@ -401,11 +408,11 @@ class InvokeAIAppConfig(InvokeAISettings):
         return True
 
     @property
-    def ram_cache_size(self) -> float:
+    def ram_cache_size(self) -> Union[Literal["auto"], float]:
         return self.max_cache_size or self.ram
 
     @property
-    def vram_cache_size(self) -> float:
+    def vram_cache_size(self) -> Union[Literal["auto"], float]:
         return self.max_vram_cache_size or self.vram
 
     @property

invokeai/app/services/default_graphs.py

@@ -1,21 +1,16 @@
-from ..invocations.latent import LatentsToImageInvocation, DenoiseLatentsInvocation
-from ..invocations.image import ImageNSFWBlurInvocation
-from ..invocations.noise import NoiseInvocation
 from ..invocations.compel import CompelInvocation
+from ..invocations.image import ImageNSFWBlurInvocation
+from ..invocations.latent import DenoiseLatentsInvocation, LatentsToImageInvocation
+from ..invocations.noise import NoiseInvocation
 from ..invocations.primitives import IntegerInvocation
 from .graph import Edge, EdgeConnection, ExposedNodeInput, ExposedNodeOutput, Graph, LibraryGraph
 from .item_storage import ItemStorageABC
 
-
 default_text_to_image_graph_id = "539b2af5-2b4d-4d8c-8071-e54a3255fc74"
 
 
 def create_text_to_image() -> LibraryGraph:
-    return LibraryGraph(
-        id=default_text_to_image_graph_id,
-        name="t2i",
-        description="Converts text to an image",
-        graph=Graph(
+    graph = Graph(
         nodes={
             "width": IntegerInvocation(id="width", value=512),
             "height": IntegerInvocation(id="height", value=512),
@@ -61,7 +56,12 @@ def create_text_to_image() -> LibraryGraph:
                 destination=EdgeConnection(node_id="8", field="image"),
             ),
         ],
-        ),
+    )
+    return LibraryGraph(
+        id=default_text_to_image_graph_id,
+        name="t2i",
+        description="Converts text to an image",
+        graph=graph,
         exposed_inputs=[
             ExposedNodeInput(node_path="4", field="prompt", alias="positive_prompt"),
             ExposedNodeInput(node_path="5", field="prompt", alias="negative_prompt"),

invokeai/app/services/events.py

@@ -1,28 +1,26 @@
 # Copyright (c) 2022 Kyle Schouviller (https://github.com/kyle0654)
 
 from typing import Any, Optional
+
 from invokeai.app.models.image import ProgressImage
+from invokeai.app.services.model_manager_service import BaseModelType, ModelInfo, ModelType, SubModelType
+from invokeai.app.services.session_queue.session_queue_common import EnqueueBatchResult, SessionQueueItem
 from invokeai.app.util.misc import get_timestamp
-from invokeai.app.services.model_manager_service import (
-    BaseModelType,
-    ModelType,
-    SubModelType,
-    ModelInfo,
-)
 
 
 class EventServiceBase:
-    session_event: str = "session_event"
+    queue_event: str = "queue_event"
 
     """Basic event bus, to have an empty stand-in when not needed"""
 
     def dispatch(self, event_name: str, payload: Any) -> None:
         pass
 
-    def __emit_session_event(self, event_name: str, payload: dict) -> None:
+    def __emit_queue_event(self, event_name: str, payload: dict) -> None:
+        """Queue events are emitted to a room with queue_id as the room name"""
         payload["timestamp"] = get_timestamp()
         self.dispatch(
-            event_name=EventServiceBase.session_event,
+            event_name=EventServiceBase.queue_event,
             payload=dict(event=event_name, data=payload),
         )
 
@@ -30,6 +28,8 @@ class EventServiceBase:
     # This will make them easier to integrate until we find a schema generator.
     def emit_generator_progress(
         self,
+        queue_id: str,
+        queue_item_id: str,
         graph_execution_state_id: str,
         node: dict,
         source_node_id: str,
@@ -39,11 +39,13 @@ class EventServiceBase:
         total_steps: int,
     ) -> None:
         """Emitted when there is generation progress"""
-        self.__emit_session_event(
+        self.__emit_queue_event(
             event_name="generator_progress",
             payload=dict(
+                queue_id=queue_id,
+                queue_item_id=queue_item_id,
                 graph_execution_state_id=graph_execution_state_id,
-                node=node,
+                node_id=node.get("id"),
                 source_node_id=source_node_id,
                 progress_image=progress_image.dict() if progress_image is not None else None,
                 step=step,
@@ -54,15 +56,19 @@ class EventServiceBase:
 
     def emit_invocation_complete(
         self,
+        queue_id: str,
+        queue_item_id: str,
         graph_execution_state_id: str,
         result: dict,
         node: dict,
         source_node_id: str,
     ) -> None:
         """Emitted when an invocation has completed"""
-        self.__emit_session_event(
+        self.__emit_queue_event(
             event_name="invocation_complete",
             payload=dict(
+                queue_id=queue_id,
+                queue_item_id=queue_item_id,
                 graph_execution_state_id=graph_execution_state_id,
                 node=node,
                 source_node_id=source_node_id,
@@ -72,6 +78,8 @@ class EventServiceBase:
 
     def emit_invocation_error(
         self,
+        queue_id: str,
+        queue_item_id: str,
         graph_execution_state_id: str,
         node: dict,
         source_node_id: str,
@@ -79,9 +87,11 @@ class EventServiceBase:
         error: str,
     ) -> None:
         """Emitted when an invocation has completed"""
-        self.__emit_session_event(
+        self.__emit_queue_event(
             event_name="invocation_error",
             payload=dict(
+                queue_id=queue_id,
+                queue_item_id=queue_item_id,
                 graph_execution_state_id=graph_execution_state_id,
                 node=node,
                 source_node_id=source_node_id,
@@ -90,28 +100,36 @@ class EventServiceBase:
             ),
         )
 
-    def emit_invocation_started(self, graph_execution_state_id: str, node: dict, source_node_id: str) -> None:
+    def emit_invocation_started(
+        self, queue_id: str, queue_item_id: str, graph_execution_state_id: str, node: dict, source_node_id: str
+    ) -> None:
         """Emitted when an invocation has started"""
-        self.__emit_session_event(
+        self.__emit_queue_event(
             event_name="invocation_started",
             payload=dict(
+                queue_id=queue_id,
+                queue_item_id=queue_item_id,
                 graph_execution_state_id=graph_execution_state_id,
                 node=node,
                 source_node_id=source_node_id,
             ),
         )
 
-    def emit_graph_execution_complete(self, graph_execution_state_id: str) -> None:
+    def emit_graph_execution_complete(self, queue_id: str, queue_item_id: str, graph_execution_state_id: str) -> None:
         """Emitted when a session has completed all invocations"""
-        self.__emit_session_event(
+        self.__emit_queue_event(
             event_name="graph_execution_state_complete",
             payload=dict(
+                queue_id=queue_id,
+                queue_item_id=queue_item_id,
                 graph_execution_state_id=graph_execution_state_id,
             ),
         )
 
     def emit_model_load_started(
         self,
+        queue_id: str,
+        queue_item_id: str,
         graph_execution_state_id: str,
         model_name: str,
         base_model: BaseModelType,
@@ -119,9 +137,11 @@ class EventServiceBase:
         submodel: SubModelType,
     ) -> None:
         """Emitted when a model is requested"""
-        self.__emit_session_event(
+        self.__emit_queue_event(
             event_name="model_load_started",
             payload=dict(
+                queue_id=queue_id,
+                queue_item_id=queue_item_id,
                 graph_execution_state_id=graph_execution_state_id,
                 model_name=model_name,
                 base_model=base_model,
@@ -132,6 +152,8 @@ class EventServiceBase:
 
     def emit_model_load_completed(
         self,
+        queue_id: str,
+        queue_item_id: str,
         graph_execution_state_id: str,
         model_name: str,
         base_model: BaseModelType,
@@ -140,9 +162,11 @@ class EventServiceBase:
         model_info: ModelInfo,
     ) -> None:
         """Emitted when a model is correctly loaded (returns model info)"""
-        self.__emit_session_event(
+        self.__emit_queue_event(
             event_name="model_load_completed",
             payload=dict(
+                queue_id=queue_id,
+                queue_item_id=queue_item_id,
                 graph_execution_state_id=graph_execution_state_id,
                 model_name=model_name,
                 base_model=base_model,
@@ -156,14 +180,18 @@ class EventServiceBase:
 
     def emit_session_retrieval_error(
         self,
+        queue_id: str,
+        queue_item_id: str,
         graph_execution_state_id: str,
         error_type: str,
         error: str,
     ) -> None:
         """Emitted when session retrieval fails"""
-        self.__emit_session_event(
+        self.__emit_queue_event(
             event_name="session_retrieval_error",
             payload=dict(
+                queue_id=queue_id,
+                queue_item_id=queue_item_id,
                 graph_execution_state_id=graph_execution_state_id,
                 error_type=error_type,
                 error=error,
@@ -172,18 +200,74 @@ class EventServiceBase:
 
     def emit_invocation_retrieval_error(
         self,
+        queue_id: str,
+        queue_item_id: str,
         graph_execution_state_id: str,
         node_id: str,
         error_type: str,
         error: str,
     ) -> None:
         """Emitted when invocation retrieval fails"""
-        self.__emit_session_event(
+        self.__emit_queue_event(
             event_name="invocation_retrieval_error",
             payload=dict(
+                queue_id=queue_id,
+                queue_item_id=queue_item_id,
                 graph_execution_state_id=graph_execution_state_id,
                 node_id=node_id,
                 error_type=error_type,
                 error=error,
             ),
         )
+
+    def emit_session_canceled(
+        self,
+        queue_id: str,
+        queue_item_id: str,
+        graph_execution_state_id: str,
+    ) -> None:
+        """Emitted when a session is canceled"""
+        self.__emit_queue_event(
+            event_name="session_canceled",
+            payload=dict(
+                queue_id=queue_id,
+                queue_item_id=queue_item_id,
+                graph_execution_state_id=graph_execution_state_id,
+            ),
+        )
+
+    def emit_queue_item_status_changed(self, session_queue_item: SessionQueueItem) -> None:
+        """Emitted when a queue item's status changes"""
+        self.__emit_queue_event(
+            event_name="queue_item_status_changed",
+            payload=dict(
+                queue_id=session_queue_item.queue_id,
+                queue_item_id=session_queue_item.item_id,
+                status=session_queue_item.status,
+                batch_id=session_queue_item.batch_id,
+                session_id=session_queue_item.session_id,
+                error=session_queue_item.error,
+                created_at=str(session_queue_item.created_at) if session_queue_item.created_at else None,
+                updated_at=str(session_queue_item.updated_at) if session_queue_item.updated_at else None,
+                started_at=str(session_queue_item.started_at) if session_queue_item.started_at else None,
+                completed_at=str(session_queue_item.completed_at) if session_queue_item.completed_at else None,
+            ),
+        )
+
+    def emit_batch_enqueued(self, enqueue_result: EnqueueBatchResult) -> None:
+        """Emitted when a batch is enqueued"""
+        self.__emit_queue_event(
+            event_name="batch_enqueued",
+            payload=dict(
+                queue_id=enqueue_result.queue_id,
+                batch_id=enqueue_result.batch.batch_id,
+                enqueued=enqueue_result.enqueued,
+            ),
+        )
+
+    def emit_queue_cleared(self, queue_id: str) -> None:
+        """Emitted when the queue is cleared"""
+        self.__emit_queue_event(
+            event_name="queue_cleared",
+            payload=dict(queue_id=queue_id),
+        )

invokeai/app/services/graph.py

@@ -2,24 +2,25 @@
 
 import copy
 import itertools
-import uuid
-from typing import Annotated, Any, Optional, Union, get_args, get_origin, get_type_hints
+from typing import Annotated, Any, Optional, Union, cast, get_args, get_origin, get_type_hints
 
 import networkx as nx
 from pydantic import BaseModel, root_validator, validator
 from pydantic.fields import Field
 
+from invokeai.app.util.misc import uuid_string
+
 # Importing * is bad karma but needed here for node detection
 from ..invocations import *  # noqa: F401 F403
 from ..invocations.baseinvocation import (
     BaseInvocation,
     BaseInvocationOutput,
-    invocation,
     Input,
     InputField,
     InvocationContext,
     OutputField,
     UIType,
+    invocation,
     invocation_output,
 )
 
@@ -137,19 +138,31 @@ def are_connections_compatible(
     return are_connection_types_compatible(from_node_field, to_node_field)
 
 
-class NodeAlreadyInGraphError(Exception):
+class NodeAlreadyInGraphError(ValueError):
     pass
 
 
-class InvalidEdgeError(Exception):
+class InvalidEdgeError(ValueError):
     pass
 
 
-class NodeNotFoundError(Exception):
+class NodeNotFoundError(ValueError):
     pass
 
 
-class NodeAlreadyExecutedError(Exception):
+class NodeAlreadyExecutedError(ValueError):
+    pass
+
+
+class DuplicateNodeIdError(ValueError):
+    pass
+
+
+class NodeFieldNotFoundError(ValueError):
+    pass
+
+
+class NodeIdMismatchError(ValueError):
     pass
 
 
@@ -227,7 +240,7 @@ InvocationOutputsUnion = Union[BaseInvocationOutput.get_all_subclasses_tuple()]
 
 
 class Graph(BaseModel):
-    id: str = Field(description="The id of this graph", default_factory=lambda: uuid.uuid4().__str__())
+    id: str = Field(description="The id of this graph", default_factory=uuid_string)
     # TODO: use a list (and never use dict in a BaseModel) because pydantic/fastapi hates me
     nodes: dict[str, Annotated[InvocationsUnion, Field(discriminator="type")]] = Field(
         description="The nodes in this graph", default_factory=dict
@@ -237,6 +250,59 @@ class Graph(BaseModel):
         default_factory=list,
     )
 
+    @root_validator
+    def validate_nodes_and_edges(cls, values):
+        """Validates that all edges match nodes in the graph"""
+        nodes = cast(Optional[dict[str, BaseInvocation]], values.get("nodes"))
+        edges = cast(Optional[list[Edge]], values.get("edges"))
+
+        if nodes is not None:
+            # Validate that all node ids are unique
+            node_ids = [n.id for n in nodes.values()]
+            duplicate_node_ids = set([node_id for node_id in node_ids if node_ids.count(node_id) >= 2])
+            if duplicate_node_ids:
+                raise DuplicateNodeIdError(f"Node ids must be unique, found duplicates {duplicate_node_ids}")
+
+            # Validate that all node ids match the keys in the nodes dict
+            for k, v in nodes.items():
+                if k != v.id:
+                    raise NodeIdMismatchError(f"Node ids must match, got {k} and {v.id}")
+
+        if edges is not None and nodes is not None:
+            # Validate that all edges match nodes in the graph
+            node_ids = set([e.source.node_id for e in edges] + [e.destination.node_id for e in edges])
+            missing_node_ids = [node_id for node_id in node_ids if node_id not in nodes]
+            if missing_node_ids:
+                raise NodeNotFoundError(
+                    f"All edges must reference nodes in the graph, missing nodes: {missing_node_ids}"
+                )
+
+            # Validate that all edge fields match node fields in the graph
+            for edge in edges:
+                source_node = nodes.get(edge.source.node_id, None)
+                if source_node is None:
+                    raise NodeFieldNotFoundError(f"Edge source node {edge.source.node_id} does not exist in the graph")
+
+                destination_node = nodes.get(edge.destination.node_id, None)
+                if destination_node is None:
+                    raise NodeFieldNotFoundError(
+                        f"Edge destination node {edge.destination.node_id} does not exist in the graph"
+                    )
+
+                # output fields are not on the node object directly, they are on the output type
+                if edge.source.field not in source_node.get_output_type().__fields__:
+                    raise NodeFieldNotFoundError(
+                        f"Edge source field {edge.source.field} does not exist in node {edge.source.node_id}"
+                    )
+
+                # input fields are on the node
+                if edge.destination.field not in destination_node.__fields__:
+                    raise NodeFieldNotFoundError(
+                        f"Edge destination field {edge.destination.field} does not exist in node {edge.destination.node_id}"
+                    )
+
+        return values
+
     def add_node(self, node: BaseInvocation) -> None:
         """Adds a node to a graph
 
@@ -697,8 +763,7 @@ class Graph(BaseModel):
 class GraphExecutionState(BaseModel):
     """Tracks the state of a graph execution"""
 
-    id: str = Field(description="The id of the execution state", default_factory=lambda: uuid.uuid4().__str__())
-
+    id: str = Field(description="The id of the execution state", default_factory=uuid_string)
     # TODO: Store a reference to the graph instead of the actual graph?
     graph: Graph = Field(description="The graph being executed")
 
@@ -847,7 +912,7 @@ class GraphExecutionState(BaseModel):
             new_node = copy.deepcopy(node)
 
             # Create the node id (use a random uuid)
-            new_node.id = str(uuid.uuid4())
+            new_node.id = uuid_string()
 
             # Set the iteration index for iteration invocations
             if isinstance(new_node, IterateInvocation):
@@ -1082,7 +1147,7 @@ class ExposedNodeOutput(BaseModel):
 
 
 class LibraryGraph(BaseModel):
-    id: str = Field(description="The unique identifier for this library graph", default_factory=uuid.uuid4)
+    id: str = Field(description="The unique identifier for this library graph", default_factory=uuid_string)
     graph: Graph = Field(description="The graph")
     name: str = Field(description="The name of the graph")
     description: str = Field(description="The description of the graph")

invokeai/app/services/image_record_storage.py

@@ -9,11 +9,7 @@ from pydantic import BaseModel, Field
 from pydantic.generics import GenericModel
 
 from invokeai.app.models.image import ImageCategory, ResourceOrigin
-from invokeai.app.services.models.image_record import (
-    ImageRecord,
-    ImageRecordChanges,
-    deserialize_image_record,
-)
+from invokeai.app.services.models.image_record import ImageRecord, ImageRecordChanges, deserialize_image_record
 
 T = TypeVar("T", bound=BaseModel)
 
@@ -152,24 +148,20 @@ class ImageRecordStorageBase(ABC):
 
 
 class SqliteImageRecordStorage(ImageRecordStorageBase):
-    _filename: str
     _conn: sqlite3.Connection
     _cursor: sqlite3.Cursor
     _lock: threading.Lock
 
-    def __init__(self, filename: str) -> None:
+    def __init__(self, conn: sqlite3.Connection, lock: threading.Lock) -> None:
         super().__init__()
-        self._filename = filename
-        self._conn = sqlite3.connect(filename, check_same_thread=False)
+        self._conn = conn
         # Enable row factory to get rows as dictionaries (must be done before making the cursor!)
         self._conn.row_factory = sqlite3.Row
         self._cursor = self._conn.cursor()
-        self._lock = threading.Lock()
+        self._lock = lock
 
         try:
             self._lock.acquire()
-            # Enable foreign keys
-            self._conn.execute("PRAGMA foreign_keys = ON;")
             self._create_tables()
             self._conn.commit()
         finally:

invokeai/app/services/images.py

@@ -1,6 +1,6 @@
 from abc import ABC, abstractmethod
 from logging import Logger
-from typing import TYPE_CHECKING, Optional
+from typing import TYPE_CHECKING, Callable, Optional
 
 from PIL.Image import Image as PILImageType
 
@@ -26,12 +26,7 @@ from invokeai.app.services.image_record_storage import (
     OffsetPaginatedResults,
 )
 from invokeai.app.services.item_storage import ItemStorageABC
-from invokeai.app.services.models.image_record import (
-    ImageDTO,
-    ImageRecord,
-    ImageRecordChanges,
-    image_record_to_dto,
-)
+from invokeai.app.services.models.image_record import ImageDTO, ImageRecord, ImageRecordChanges, image_record_to_dto
 from invokeai.app.services.resource_name import NameServiceBase
 from invokeai.app.services.urls import UrlServiceBase
 from invokeai.app.util.metadata import get_metadata_graph_from_raw_session
@@ -43,6 +38,27 @@ if TYPE_CHECKING:
 class ImageServiceABC(ABC):
     """High-level service for image management."""
 
+    _on_changed_callbacks: list[Callable[[ImageDTO], None]]
+    _on_deleted_callbacks: list[Callable[[str], None]]
+
+    @abstractmethod
+    def on_changed(self, on_changed: Callable[[ImageDTO], None]) -> None:
+        """Register a callback for when an item is changed"""
+        pass
+
+    @abstractmethod
+    def on_deleted(self, on_deleted: Callable[[str], None]) -> None:
+        """Register a callback for when an item is deleted"""
+        pass
+
+    @abstractmethod
+    def _on_changed(self, item: ImageDTO) -> None:
+        pass
+
+    @abstractmethod
+    def _on_deleted(self, item_id: str) -> None:
+        pass
+
     @abstractmethod
     def create(
         self,
@@ -164,6 +180,24 @@ class ImageServiceDependencies:
 
 class ImageService(ImageServiceABC):
     _services: ImageServiceDependencies
+    _on_changed_callbacks: list[Callable[[ImageDTO], None]] = list()
+    _on_deleted_callbacks: list[Callable[[str], None]] = list()
+
+    def on_changed(self, on_changed: Callable[[ImageDTO], None]) -> None:
+        """Register a callback for when an item is changed"""
+        self._on_changed_callbacks.append(on_changed)
+
+    def on_deleted(self, on_deleted: Callable[[str], None]) -> None:
+        """Register a callback for when an item is deleted"""
+        self._on_deleted_callbacks.append(on_deleted)
+
+    def _on_changed(self, item: ImageDTO) -> None:
+        for callback in self._on_changed_callbacks:
+            callback(item)
+
+    def _on_deleted(self, item_id: str) -> None:
+        for callback in self._on_deleted_callbacks:
+            callback(item_id)
 
     def __init__(self, services: ImageServiceDependencies):
         self._services = services
@@ -222,6 +256,7 @@ class ImageService(ImageServiceABC):
             self._services.image_files.save(image_name=image_name, image=image, metadata=metadata, workflow=workflow)
             image_dto = self.get_dto(image_name)
 
+            self._on_changed(image_dto)
             return image_dto
         except ImageRecordSaveException:
             self._services.logger.error("Failed to save image record")
@@ -240,7 +275,9 @@ class ImageService(ImageServiceABC):
     ) -> ImageDTO:
         try:
             self._services.image_records.update(image_name, changes)
-            return self.get_dto(image_name)
+            image_dto = self.get_dto(image_name)
+            self._on_changed(image_dto)
+            return image_dto
         except ImageRecordSaveException:
             self._services.logger.error("Failed to update image record")
             raise
@@ -379,6 +416,7 @@ class ImageService(ImageServiceABC):
         try:
             self._services.image_files.delete(image_name)
             self._services.image_records.delete(image_name)
+            self._on_deleted(image_name)
         except ImageRecordDeleteException:
             self._services.logger.error("Failed to delete image record")
             raise
@@ -395,6 +433,8 @@ class ImageService(ImageServiceABC):
             for image_name in image_names:
                 self._services.image_files.delete(image_name)
             self._services.image_records.delete_many(image_names)
+            for image_name in image_names:
+                self._on_deleted(image_name)
         except ImageRecordDeleteException:
             self._services.logger.error("Failed to delete image records")
             raise
@@ -411,6 +451,7 @@ class ImageService(ImageServiceABC):
             count = len(image_names)
             for image_name in image_names:
                 self._services.image_files.delete(image_name)
+                self._on_deleted(image_name)
             return count
         except ImageRecordDeleteException:
             self._services.logger.error("Failed to delete image records")

invokeai/app/services/invocation_cache/invocation_cache_base.py

@@ -0,0 +1,34 @@
+from abc import ABC, abstractmethod
+from typing import Optional, Union
+
+from invokeai.app.invocations.baseinvocation import BaseInvocation, BaseInvocationOutput
+
+
+class InvocationCacheBase(ABC):
+    """Base class for invocation caches."""
+
+    @abstractmethod
+    def get(self, key: Union[int, str]) -> Optional[BaseInvocationOutput]:
+        """Retrieves and invocation output from the cache"""
+        pass
+
+    @abstractmethod
+    def save(self, value: BaseInvocationOutput) -> None:
+        """Stores an invocation output in the cache"""
+        pass
+
+    @abstractmethod
+    def delete(self, key: Union[int, str]) -> None:
+        """Deleted an invocation output from the cache"""
+        pass
+
+    @abstractmethod
+    def clear(self) -> None:
+        """Clears the cache"""
+        pass
+
+    @classmethod
+    @abstractmethod
+    def create_key(cls, value: BaseInvocation) -> Union[int, str]:
+        """Creates the cache key for an invocation"""
+        pass

invokeai/app/services/invocation_cache/invocation_cache_memory.py

@@ -0,0 +1,70 @@
+from queue import Queue
+from typing import Optional, Union
+
+
+from invokeai.app.invocations.baseinvocation import BaseInvocation, BaseInvocationOutput
+from invokeai.app.services.invocation_cache.invocation_cache_base import InvocationCacheBase
+from invokeai.app.services.invoker import Invoker
+
+
+class MemoryInvocationCache(InvocationCacheBase):
+    __cache: dict[Union[int, str], tuple[BaseInvocationOutput, str]]
+    __max_cache_size: int
+    __cache_ids: Queue
+    __invoker: Invoker
+
+    def __init__(self, max_cache_size: int = 512) -> None:
+        self.__cache = dict()
+        self.__max_cache_size = max_cache_size
+        self.__cache_ids = Queue()
+
+    def start(self, invoker: Invoker) -> None:
+        self.__invoker = invoker
+        self.__invoker.services.images.on_deleted(self.delete_by_match)
+
+    def get(self, key: Union[int, str]) -> Optional[BaseInvocationOutput]:
+        if self.__max_cache_size == 0:
+            return None
+
+        item = self.__cache.get(key, None)
+        if item is not None:
+            return item[0]
+
+    def save(self, value: BaseInvocationOutput) -> None:
+        if self.__max_cache_size == 0:
+            return None
+
+        value_json = value.json(exclude={"id"})
+        key = hash(value_json)
+
+        if key not in self.__cache:
+            self.__cache[key] = (value, value_json)
+            self.__cache_ids.put(key)
+            if self.__cache_ids.qsize() > self.__max_cache_size:
+                try:
+                    self.__cache.pop(self.__cache_ids.get())
+                except KeyError:
+                    pass
+
+    def delete(self, key: Union[int, str]) -> None:
+        if self.__max_cache_size == 0:
+            return None
+
+        if key in self.__cache:
+            del self.__cache[key]
+
+    def delete_by_match(self, to_match: str) -> None:
+        to_delete = []
+        for name, item in self.__cache.items():
+            if to_match in item[1]:
+                to_delete.append(name)
+        for key in to_delete:
+            self.delete(key)
+
+    def clear(self, *args, **kwargs) -> None:
+        self.__cache.clear()
+        self.__cache_ids = Queue()
+
+    @classmethod
+    def create_key(cls, value: BaseInvocation) -> Union[int, str]:
+        return hash(value.json(exclude={"id"}))

invokeai/app/services/invocation_queue.py

@@ -3,14 +3,18 @@
 import time
 from abc import ABC, abstractmethod
 from queue import Queue
+from typing import Optional
 
 from pydantic import BaseModel, Field
-from typing import Optional
 
 
 class InvocationQueueItem(BaseModel):
     graph_execution_state_id: str = Field(description="The ID of the graph execution state")
     invocation_id: str = Field(description="The ID of the node being invoked")
+    session_queue_id: str = Field(description="The ID of the session queue from which this invocation queue item came")
+    session_queue_item_id: str = Field(
+        description="The ID of session queue item from which this invocation queue item came"
+    )
     invoke_all: bool = Field(default=False)
     timestamp: float = Field(default_factory=time.time)
 

invokeai/app/services/invocation_services.py

@@ -1,21 +1,26 @@
 # Copyright (c) 2022 Kyle Schouviller (https://github.com/kyle0654) and the InvokeAI Team
 from __future__ import annotations
+
 from typing import TYPE_CHECKING
 
 if TYPE_CHECKING:
     from logging import Logger
+
     from invokeai.app.services.board_images import BoardImagesServiceABC
     from invokeai.app.services.boards import BoardServiceABC
-    from invokeai.app.services.images import ImageServiceABC
-    from invokeai.app.services.invocation_stats import InvocationStatsServiceBase
-    from invokeai.app.services.model_manager_service import ModelManagerServiceBase
-    from invokeai.app.services.events import EventServiceBase
-    from invokeai.app.services.latent_storage import LatentsStorageBase
-    from invokeai.app.services.invocation_queue import InvocationQueueABC
-    from invokeai.app.services.item_storage import ItemStorageABC
     from invokeai.app.services.config import InvokeAIAppConfig
+    from invokeai.app.services.events import EventServiceBase
     from invokeai.app.services.graph import GraphExecutionState, LibraryGraph
+    from invokeai.app.services.images import ImageServiceABC
+    from invokeai.app.services.invocation_cache.invocation_cache_base import InvocationCacheBase
+    from invokeai.app.services.invocation_queue import InvocationQueueABC
+    from invokeai.app.services.invocation_stats import InvocationStatsServiceBase
     from invokeai.app.services.invoker import InvocationProcessorABC
+    from invokeai.app.services.item_storage import ItemStorageABC
+    from invokeai.app.services.latent_storage import LatentsStorageBase
+    from invokeai.app.services.model_manager_service import ModelManagerServiceBase
+    from invokeai.app.services.session_processor.session_processor_base import SessionProcessorBase
+    from invokeai.app.services.session_queue.session_queue_base import SessionQueueBase
 
 
 class InvocationServices:
@@ -26,8 +31,8 @@ class InvocationServices:
     boards: "BoardServiceABC"
     configuration: "InvokeAIAppConfig"
     events: "EventServiceBase"
-    graph_execution_manager: "ItemStorageABC"["GraphExecutionState"]
-    graph_library: "ItemStorageABC"["LibraryGraph"]
+    graph_execution_manager: "ItemStorageABC[GraphExecutionState]"
+    graph_library: "ItemStorageABC[LibraryGraph]"
     images: "ImageServiceABC"
     latents: "LatentsStorageBase"
     logger: "Logger"
@@ -35,6 +40,9 @@ class InvocationServices:
     processor: "InvocationProcessorABC"
     performance_statistics: "InvocationStatsServiceBase"
     queue: "InvocationQueueABC"
+    session_queue: "SessionQueueBase"
+    session_processor: "SessionProcessorBase"
+    invocation_cache: "InvocationCacheBase"
 
     def __init__(
         self,
@@ -42,8 +50,8 @@ class InvocationServices:
         boards: "BoardServiceABC",
         configuration: "InvokeAIAppConfig",
         events: "EventServiceBase",
-        graph_execution_manager: "ItemStorageABC"["GraphExecutionState"],
-        graph_library: "ItemStorageABC"["LibraryGraph"],
+        graph_execution_manager: "ItemStorageABC[GraphExecutionState]",
+        graph_library: "ItemStorageABC[LibraryGraph]",
         images: "ImageServiceABC",
         latents: "LatentsStorageBase",
         logger: "Logger",
@@ -51,10 +59,12 @@ class InvocationServices:
         processor: "InvocationProcessorABC",
         performance_statistics: "InvocationStatsServiceBase",
         queue: "InvocationQueueABC",
+        session_queue: "SessionQueueBase",
+        session_processor: "SessionProcessorBase",
+        invocation_cache: "InvocationCacheBase",
     ):
         self.board_images = board_images
         self.boards = boards
-        self.boards = boards
         self.configuration = configuration
         self.events = events
         self.graph_execution_manager = graph_execution_manager
@@ -66,3 +76,6 @@ class InvocationServices:
         self.processor = processor
         self.performance_statistics = performance_statistics
         self.queue = queue
+        self.session_queue = session_queue
+        self.session_processor = session_processor
+        self.invocation_cache = invocation_cache

invokeai/app/services/invocation_stats.py

@@ -28,22 +28,22 @@ The abstract base class for this class is InvocationStatsServiceBase. An impleme
 writes to the system log is stored in InvocationServices.performance_statistics.
 """
 
-import psutil
 import time
 from abc import ABC, abstractmethod
 from contextlib import AbstractContextManager
 from dataclasses import dataclass, field
 from typing import Dict
 
+import psutil
 import torch
 
 import invokeai.backend.util.logging as logger
+from invokeai.backend.model_management.model_cache import CacheStats
 
 from ..invocations.baseinvocation import BaseInvocation
 from .graph import GraphExecutionState
 from .item_storage import ItemStorageABC
 from .model_manager_service import ModelManagerService
-from invokeai.backend.model_management.model_cache import CacheStats
 
 # size of GIG in bytes
 GIG = 1073741824

invokeai/app/services/invoker.py

@@ -17,7 +17,9 @@ class Invoker:
         self.services = services
         self._start()
 
-    def invoke(self, graph_execution_state: GraphExecutionState, invoke_all: bool = False) -> Optional[str]:
+    def invoke(
+        self, queue_id: str, queue_item_id: str, graph_execution_state: GraphExecutionState, invoke_all: bool = False
+    ) -> Optional[str]:
         """Determines the next node to invoke and enqueues it, preparing if needed.
         Returns the id of the queued node, or `None` if there are no nodes left to enqueue."""
 
@@ -32,7 +34,8 @@ class Invoker:
         # Queue the invocation
         self.services.queue.put(
             InvocationQueueItem(
-                # session_id    = session.id,
+                session_queue_item_id=queue_item_id,
+                session_queue_id=queue_id,
                 graph_execution_state_id=graph_execution_state.id,
                 invocation_id=invocation.id,
                 invoke_all=invoke_all,

invokeai/app/services/latent_storage.py

@@ -3,7 +3,7 @@
 from abc import ABC, abstractmethod
 from pathlib import Path
 from queue import Queue
-from typing import Dict, Union, Optional
+from typing import Dict, Optional, Union
 
 import torch
 

invokeai/app/services/model_manager_service.py

@@ -5,27 +5,28 @@ from __future__ import annotations
 from abc import ABC, abstractmethod
 from logging import Logger
 from pathlib import Path
-from pydantic import Field
-from typing import Literal, Optional, Union, Callable, List, Tuple, TYPE_CHECKING
 from types import ModuleType
-
-from invokeai.backend.model_management import (
-    ModelManager,
-    BaseModelType,
-    ModelType,
-    SubModelType,
-    ModelInfo,
-    AddModelResult,
-    SchedulerPredictionType,
-    ModelMerger,
-    MergeInterpolationMethod,
-    ModelNotFoundException,
-)
-from invokeai.backend.model_management.model_search import FindModels
-from invokeai.backend.model_management.model_cache import CacheStats
+from typing import TYPE_CHECKING, Callable, List, Literal, Optional, Tuple, Union
 
 import torch
+from pydantic import Field
+
 from invokeai.app.models.exceptions import CanceledException
+from invokeai.backend.model_management import (
+    AddModelResult,
+    BaseModelType,
+    MergeInterpolationMethod,
+    ModelInfo,
+    ModelManager,
+    ModelMerger,
+    ModelNotFoundException,
+    ModelType,
+    SchedulerPredictionType,
+    SubModelType,
+)
+from invokeai.backend.model_management.model_cache import CacheStats
+from invokeai.backend.model_management.model_search import FindModels
+
 from ...backend.util import choose_precision, choose_torch_device
 from .config import InvokeAIAppConfig
 
@@ -524,7 +525,7 @@ class ModelManagerService(ModelManagerServiceBase):
 
     def _emit_load_event(
         self,
-        context,
+        context: InvocationContext,
         model_name: str,
         base_model: BaseModelType,
         model_type: ModelType,
@@ -536,6 +537,8 @@ class ModelManagerService(ModelManagerServiceBase):
 
         if model_info:
             context.services.events.emit_model_load_completed(
+                queue_id=context.queue_id,
+                queue_item_id=context.queue_item_id,
                 graph_execution_state_id=context.graph_execution_state_id,
                 model_name=model_name,
                 base_model=base_model,
@@ -545,6 +548,8 @@ class ModelManagerService(ModelManagerServiceBase):
             )
         else:
             context.services.events.emit_model_load_started(
+                queue_id=context.queue_id,
+                queue_item_id=context.queue_item_id,
                 graph_execution_state_id=context.graph_execution_state_id,
                 model_name=model_name,
                 base_model=base_model,

invokeai/app/services/models/board_record.py

@@ -1,6 +1,8 @@
-from typing import Optional, Union
 from datetime import datetime
+from typing import Optional, Union
+
 from pydantic import Field
+
 from invokeai.app.util.misc import get_iso_timestamp
 from invokeai.app.util.model_exclude_null import BaseModelExcludeNull
 

invokeai/app/services/processor.py

@@ -1,6 +1,7 @@
 import time
 import traceback
 from threading import BoundedSemaphore, Event, Thread
+from typing import Optional
 
 import invokeai.backend.util.logging as logger
 
@@ -37,10 +38,11 @@ class DefaultInvocationProcessor(InvocationProcessorABC):
         try:
             self.__threadLimit.acquire()
             statistics: InvocationStatsServiceBase = self.__invoker.services.performance_statistics
+            queue_item: Optional[InvocationQueueItem] = None
 
             while not stop_event.is_set():
                 try:
-                    queue_item: InvocationQueueItem = self.__invoker.services.queue.get()
+                    queue_item = self.__invoker.services.queue.get()
                 except Exception as e:
                     self.__invoker.services.logger.error("Exception while getting from queue:\n%s" % e)
 
@@ -48,7 +50,6 @@ class DefaultInvocationProcessor(InvocationProcessorABC):
                     # do not hammer the queue
                     time.sleep(0.5)
                     continue
-
                 try:
                     graph_execution_state = self.__invoker.services.graph_execution_manager.get(
                         queue_item.graph_execution_state_id
@@ -56,6 +57,8 @@ class DefaultInvocationProcessor(InvocationProcessorABC):
                 except Exception as e:
                     self.__invoker.services.logger.error("Exception while retrieving session:\n%s" % e)
                     self.__invoker.services.events.emit_session_retrieval_error(
+                        queue_item_id=queue_item.session_queue_item_id,
+                        queue_id=queue_item.session_queue_id,
                         graph_execution_state_id=queue_item.graph_execution_state_id,
                         error_type=e.__class__.__name__,
                         error=traceback.format_exc(),
@@ -67,6 +70,8 @@ class DefaultInvocationProcessor(InvocationProcessorABC):
                 except Exception as e:
                     self.__invoker.services.logger.error("Exception while retrieving invocation:\n%s" % e)
                     self.__invoker.services.events.emit_invocation_retrieval_error(
+                        queue_item_id=queue_item.session_queue_item_id,
+                        queue_id=queue_item.session_queue_id,
                         graph_execution_state_id=queue_item.graph_execution_state_id,
                         node_id=queue_item.invocation_id,
                         error_type=e.__class__.__name__,
@@ -79,6 +84,8 @@ class DefaultInvocationProcessor(InvocationProcessorABC):
 
                 # Send starting event
                 self.__invoker.services.events.emit_invocation_started(
+                    queue_item_id=queue_item.session_queue_item_id,
+                    queue_id=queue_item.session_queue_id,
                     graph_execution_state_id=graph_execution_state.id,
                     node=invocation.dict(),
                     source_node_id=source_node_id,
@@ -89,13 +96,16 @@ class DefaultInvocationProcessor(InvocationProcessorABC):
                     graph_id = graph_execution_state.id
                     model_manager = self.__invoker.services.model_manager
                     with statistics.collect_stats(invocation, graph_id, model_manager):
-                        # use the internal invoke_internal(), which wraps the node's invoke() method in
-                        # this accomodates nodes which require a value, but get it only from a
-                        # connection
+                        # use the internal invoke_internal(), which wraps the node's invoke() method,
+                        # which handles a few things:
+                        # - nodes that require a value, but get it only from a connection
+                        # - referencing the invocation cache instead of executing the node
                         outputs = invocation.invoke_internal(
                             InvocationContext(
                                 services=self.__invoker.services,
                                 graph_execution_state_id=graph_execution_state.id,
+                                queue_item_id=queue_item.session_queue_item_id,
+                                queue_id=queue_item.session_queue_id,
                             )
                         )
 
@@ -111,6 +121,8 @@ class DefaultInvocationProcessor(InvocationProcessorABC):
 
                         # Send complete event
                         self.__invoker.services.events.emit_invocation_complete(
+                            queue_item_id=queue_item.session_queue_item_id,
+                            queue_id=queue_item.session_queue_id,
                             graph_execution_state_id=graph_execution_state.id,
                             node=invocation.dict(),
                             source_node_id=source_node_id,
@@ -138,6 +150,8 @@ class DefaultInvocationProcessor(InvocationProcessorABC):
                     self.__invoker.services.logger.error("Error while invoking:\n%s" % e)
                     # Send error event
                     self.__invoker.services.events.emit_invocation_error(
+                        queue_item_id=queue_item.session_queue_item_id,
+                        queue_id=queue_item.session_queue_id,
                         graph_execution_state_id=graph_execution_state.id,
                         node=invocation.dict(),
                         source_node_id=source_node_id,
@@ -155,10 +169,17 @@ class DefaultInvocationProcessor(InvocationProcessorABC):
                 is_complete = graph_execution_state.is_complete()
                 if queue_item.invoke_all and not is_complete:
                     try:
-                        self.__invoker.invoke(graph_execution_state, invoke_all=True)
+                        self.__invoker.invoke(
+                            queue_item_id=queue_item.session_queue_item_id,
+                            queue_id=queue_item.session_queue_id,
+                            graph_execution_state=graph_execution_state,
+                            invoke_all=True,
+                        )
                     except Exception as e:
                         self.__invoker.services.logger.error("Error while invoking:\n%s" % e)
                         self.__invoker.services.events.emit_invocation_error(
+                            queue_item_id=queue_item.session_queue_item_id,
+                            queue_id=queue_item.session_queue_id,
                             graph_execution_state_id=graph_execution_state.id,
                             node=invocation.dict(),
                             source_node_id=source_node_id,
@@ -166,7 +187,11 @@ class DefaultInvocationProcessor(InvocationProcessorABC):
                             error=traceback.format_exc(),
                         )
                 elif is_complete:
-                    self.__invoker.services.events.emit_graph_execution_complete(graph_execution_state.id)
+                    self.__invoker.services.events.emit_graph_execution_complete(
+                        queue_item_id=queue_item.session_queue_item_id,
+                        queue_id=queue_item.session_queue_id,
+                        graph_execution_state_id=graph_execution_state.id,
+                    )
 
         except KeyboardInterrupt:
             pass  # Log something? KeyboardInterrupt is probably not going to be seen by the processor

invokeai/app/services/resource_name.py

@@ -1,6 +1,7 @@
 from abc import ABC, abstractmethod
 from enum import Enum, EnumMeta
-import uuid
+
+from invokeai.app.util.misc import uuid_string
 
 
 class ResourceType(str, Enum, metaclass=EnumMeta):
@@ -25,6 +26,6 @@ class SimpleNameService(NameServiceBase):
 
     # TODO: Add customizable naming schemes
     def create_image_name(self) -> str:
-        uuid_str = str(uuid.uuid4())
+        uuid_str = uuid_string()
         filename = f"{uuid_str}.png"
         return filename

invokeai/app/services/session_processor/session_processor_base.py

@@ -0,0 +1,28 @@
+from abc import ABC, abstractmethod
+
+from invokeai.app.services.session_processor.session_processor_common import SessionProcessorStatus
+
+
+class SessionProcessorBase(ABC):
+    """
+    Base class for session processor.
+
+    The session processor is responsible for executing sessions. It runs a simple polling loop,
+    checking the session queue for new sessions to execute. It must coordinate with the
+    invocation queue to ensure only one session is executing at a time.
+    """
+
+    @abstractmethod
+    def resume(self) -> SessionProcessorStatus:
+        """Starts or resumes the session processor"""
+        pass
+
+    @abstractmethod
+    def pause(self) -> SessionProcessorStatus:
+        """Pauses the session processor"""
+        pass
+
+    @abstractmethod
+    def get_status(self) -> SessionProcessorStatus:
+        """Gets the status of the session processor"""
+        pass

invokeai/app/services/session_processor/session_processor_common.py

@@ -0,0 +1,6 @@
+from pydantic import BaseModel, Field
+
+
+class SessionProcessorStatus(BaseModel):
+    is_started: bool = Field(description="Whether the session processor is started")
+    is_processing: bool = Field(description="Whether a session is being processed")

invokeai/app/services/session_processor/session_processor_default.py

@@ -0,0 +1,123 @@
+from threading import BoundedSemaphore
+from threading import Event as ThreadEvent
+from threading import Thread
+from typing import Optional
+
+from fastapi_events.handlers.local import local_handler
+from fastapi_events.typing import Event as FastAPIEvent
+
+from invokeai.app.services.events import EventServiceBase
+from invokeai.app.services.session_queue.session_queue_common import SessionQueueItem
+
+from ..invoker import Invoker
+from .session_processor_base import SessionProcessorBase
+from .session_processor_common import SessionProcessorStatus
+
+POLLING_INTERVAL = 1
+THREAD_LIMIT = 1
+
+
+class DefaultSessionProcessor(SessionProcessorBase):
+    def start(self, invoker: Invoker) -> None:
+        self.__invoker: Invoker = invoker
+        self.__queue_item: Optional[SessionQueueItem] = None
+
+        self.__resume_event = ThreadEvent()
+        self.__stop_event = ThreadEvent()
+        self.__poll_now_event = ThreadEvent()
+
+        local_handler.register(event_name=EventServiceBase.queue_event, _func=self._on_queue_event)
+
+        self.__threadLimit = BoundedSemaphore(THREAD_LIMIT)
+        self.__thread = Thread(
+            name="session_processor",
+            target=self.__process,
+            kwargs=dict(
+                stop_event=self.__stop_event, poll_now_event=self.__poll_now_event, resume_event=self.__resume_event
+            ),
+        )
+        self.__thread.start()
+
+    def stop(self, *args, **kwargs) -> None:
+        self.__stop_event.set()
+
+    def _poll_now(self) -> None:
+        self.__poll_now_event.set()
+
+    async def _on_queue_event(self, event: FastAPIEvent) -> None:
+        event_name = event[1]["event"]
+
+        match event_name:
+            case "graph_execution_state_complete" | "invocation_error" | "session_retrieval_error" | "invocation_retrieval_error":
+                self.__queue_item = None
+                self._poll_now()
+            case "session_canceled" if self.__queue_item is not None and self.__queue_item.session_id == event[1][
+                "data"
+            ]["graph_execution_state_id"]:
+                self.__queue_item = None
+                self._poll_now()
+            case "batch_enqueued":
+                self._poll_now()
+            case "queue_cleared":
+                self.__queue_item = None
+                self._poll_now()
+
+    def resume(self) -> SessionProcessorStatus:
+        if not self.__resume_event.is_set():
+            self.__resume_event.set()
+        return self.get_status()
+
+    def pause(self) -> SessionProcessorStatus:
+        if self.__resume_event.is_set():
+            self.__resume_event.clear()
+        return self.get_status()
+
+    def get_status(self) -> SessionProcessorStatus:
+        return SessionProcessorStatus(
+            is_started=self.__resume_event.is_set(),
+            is_processing=self.__queue_item is not None,
+        )
+
+    def __process(
+        self,
+        stop_event: ThreadEvent,
+        poll_now_event: ThreadEvent,
+        resume_event: ThreadEvent,
+    ):
+        try:
+            stop_event.clear()
+            resume_event.set()
+            self.__threadLimit.acquire()
+            queue_item: Optional[SessionQueueItem] = None
+            self.__invoker.services.logger
+            while not stop_event.is_set():
+                poll_now_event.clear()
+
+                # do not dequeue if there is already a session running
+                if self.__queue_item is None and resume_event.is_set():
+                    queue_item = self.__invoker.services.session_queue.dequeue()
+
+                    if queue_item is not None:
+                        self.__invoker.services.logger.debug(f"Executing queue item {queue_item.item_id}")
+                        self.__queue_item = queue_item
+                        self.__invoker.services.graph_execution_manager.set(queue_item.session)
+                        self.__invoker.invoke(
+                            queue_item_id=queue_item.item_id,
+                            queue_id=queue_item.queue_id,
+                            graph_execution_state=queue_item.session,
+                            invoke_all=True,
+                        )
+                        queue_item = None
+
+                if queue_item is None:
+                    self.__invoker.services.logger.debug("Waiting for next polling interval or event")
+                    poll_now_event.wait(POLLING_INTERVAL)
+                    continue
+        except Exception as e:
+            self.__invoker.services.logger.error(f"Error in session processor: {e}")
+            pass
+        finally:
+            stop_event.clear()
+            poll_now_event.clear()
+            self.__queue_item = None
+            self.__threadLimit.release()

invokeai/app/services/session_queue/session_queue_base.py

@@ -0,0 +1,112 @@
+from abc import ABC, abstractmethod
+from typing import Optional
+
+from invokeai.app.services.graph import Graph
+from invokeai.app.services.session_queue.session_queue_common import (
+    QUEUE_ITEM_STATUS,
+    Batch,
+    BatchStatus,
+    CancelByBatchIDsResult,
+    CancelByQueueIDResult,
+    ClearResult,
+    EnqueueBatchResult,
+    EnqueueGraphResult,
+    IsEmptyResult,
+    IsFullResult,
+    PruneResult,
+    SessionQueueItem,
+    SessionQueueItemDTO,
+    SessionQueueStatus,
+)
+from invokeai.app.services.shared.models import CursorPaginatedResults
+
+
+class SessionQueueBase(ABC):
+    """Base class for session queue"""
+
+    @abstractmethod
+    def dequeue(self) -> Optional[SessionQueueItem]:
+        """Dequeues the next session queue item."""
+        pass
+
+    @abstractmethod
+    def enqueue_graph(self, queue_id: str, graph: Graph, prepend: bool) -> EnqueueGraphResult:
+        """Enqueues a single graph for execution."""
+        pass
+
+    @abstractmethod
+    def enqueue_batch(self, queue_id: str, batch: Batch, prepend: bool) -> EnqueueBatchResult:
+        """Enqueues all permutations of a batch for execution."""
+        pass
+
+    @abstractmethod
+    def get_current(self, queue_id: str) -> Optional[SessionQueueItem]:
+        """Gets the currently-executing session queue item"""
+        pass
+
+    @abstractmethod
+    def get_next(self, queue_id: str) -> Optional[SessionQueueItem]:
+        """Gets the next session queue item (does not dequeue it)"""
+        pass
+
+    @abstractmethod
+    def clear(self, queue_id: str) -> ClearResult:
+        """Deletes all session queue items"""
+        pass
+
+    @abstractmethod
+    def prune(self, queue_id: str) -> PruneResult:
+        """Deletes all completed and errored session queue items"""
+        pass
+
+    @abstractmethod
+    def is_empty(self, queue_id: str) -> IsEmptyResult:
+        """Checks if the queue is empty"""
+        pass
+
+    @abstractmethod
+    def is_full(self, queue_id: str) -> IsFullResult:
+        """Checks if the queue is empty"""
+        pass
+
+    @abstractmethod
+    def get_queue_status(self, queue_id: str) -> SessionQueueStatus:
+        """Gets the status of the queue"""
+        pass
+
+    @abstractmethod
+    def get_batch_status(self, queue_id: str, batch_id: str) -> BatchStatus:
+        """Gets the status of a batch"""
+        pass
+
+    @abstractmethod
+    def cancel_queue_item(self, item_id: str) -> SessionQueueItem:
+        """Cancels a session queue item"""
+        pass
+
+    @abstractmethod
+    def cancel_by_batch_ids(self, queue_id: str, batch_ids: list[str]) -> CancelByBatchIDsResult:
+        """Cancels all queue items with matching batch IDs"""
+        pass
+
+    @abstractmethod
+    def cancel_by_queue_id(self, queue_id: str) -> CancelByQueueIDResult:
+        """Cancels all queue items with matching queue ID"""
+        pass
+
+    @abstractmethod
+    def list_queue_items(
+        self,
+        queue_id: str,
+        limit: int,
+        priority: int,
+        order_id: Optional[int] = None,
+        status: Optional[QUEUE_ITEM_STATUS] = None,
+    ) -> CursorPaginatedResults[SessionQueueItemDTO]:
+        """Gets a page of session queue items"""
+        pass
+
+    @abstractmethod
+    def get_queue_item(self, item_id: str) -> SessionQueueItem:
+        """Gets a session queue item by ID"""
+        pass

invokeai/app/services/session_queue/session_queue_common.py

@@ -0,0 +1,428 @@
+import datetime
+import json
+from itertools import chain, product
+from typing import Generator, Iterable, Literal, NamedTuple, Optional, TypeAlias, Union, cast
+
+from pydantic import BaseModel, Field, StrictStr, parse_raw_as, root_validator, validator
+from pydantic.json import pydantic_encoder
+
+from invokeai.app.invocations.baseinvocation import BaseInvocation
+from invokeai.app.services.graph import Graph, GraphExecutionState, NodeNotFoundError
+from invokeai.app.util.misc import uuid_string
+
+# region Errors
+
+
+class BatchZippedLengthError(ValueError):
+    """Raise when a batch has items of different lengths."""
+
+
+class BatchItemsTypeError(TypeError):
+    """Raise when a batch has items of different types."""
+
+
+class BatchDuplicateNodeFieldError(ValueError):
+    """Raise when a batch has duplicate node_path and field_name."""
+
+
+class TooManySessionsError(ValueError):
+    """Raise when too many sessions are requested."""
+
+
+class SessionQueueItemNotFoundError(ValueError):
+    """Raise when a queue item is not found."""
+
+
+# endregion
+
+
+# region Batch
+
+BatchDataType = Union[
+    StrictStr,
+    float,
+    int,
+]
+
+
+class NodeFieldValue(BaseModel):
+    node_path: str = Field(description="The node into which this batch data item will be substituted.")
+    field_name: str = Field(description="The field into which this batch data item will be substituted.")
+    value: BatchDataType = Field(description="The value to substitute into the node/field.")
+
+
+class BatchDatum(BaseModel):
+    node_path: str = Field(description="The node into which this batch data collection will be substituted.")
+    field_name: str = Field(description="The field into which this batch data collection will be substituted.")
+    items: list[BatchDataType] = Field(
+        default_factory=list, description="The list of items to substitute into the node/field."
+    )
+
+
+BatchDataCollection: TypeAlias = list[list[BatchDatum]]
+
+
+class Batch(BaseModel):
+    batch_id: str = Field(default_factory=uuid_string, description="The ID of the batch")
+    data: Optional[BatchDataCollection] = Field(default=None, description="The batch data collection.")
+    graph: Graph = Field(description="The graph to initialize the session with")
+    runs: int = Field(
+        default=1, ge=1, description="Int stating how many times to iterate through all possible batch indices"
+    )
+
+    @validator("data")
+    def validate_lengths(cls, v: Optional[BatchDataCollection]):
+        if v is None:
+            return v
+        for batch_data_list in v:
+            first_item_length = len(batch_data_list[0].items) if batch_data_list and batch_data_list[0].items else 0
+            for i in batch_data_list:
+                if len(i.items) != first_item_length:
+                    raise BatchZippedLengthError("Zipped batch items must all have the same length")
+        return v
+
+    @validator("data")
+    def validate_types(cls, v: Optional[BatchDataCollection]):
+        if v is None:
+            return v
+        for batch_data_list in v:
+            for datum in batch_data_list:
+                # Get the type of the first item in the list
+                first_item_type = type(datum.items[0]) if datum.items else None
+                for item in datum.items:
+                    if type(item) is not first_item_type:
+                        raise BatchItemsTypeError("All items in a batch must have the same type")
+        return v
+
+    @validator("data")
+    def validate_unique_field_mappings(cls, v: Optional[BatchDataCollection]):
+        if v is None:
+            return v
+        paths: set[tuple[str, str]] = set()
+        for batch_data_list in v:
+            for datum in batch_data_list:
+                pair = (datum.node_path, datum.field_name)
+                if pair in paths:
+                    raise BatchDuplicateNodeFieldError("Each batch data must have unique node_id and field_name")
+                paths.add(pair)
+        return v
+
+    @root_validator(skip_on_failure=True)
+    def validate_batch_nodes_and_edges(cls, values):
+        batch_data_collection = cast(Optional[BatchDataCollection], values["data"])
+        if batch_data_collection is None:
+            return values
+        graph = cast(Graph, values["graph"])
+        for batch_data_list in batch_data_collection:
+            for batch_data in batch_data_list:
+                try:
+                    node = cast(BaseInvocation, graph.get_node(batch_data.node_path))
+                except NodeNotFoundError:
+                    raise NodeNotFoundError(f"Node {batch_data.node_path} not found in graph")
+                if batch_data.field_name not in node.__fields__:
+                    raise NodeNotFoundError(f"Field {batch_data.field_name} not found in node {batch_data.node_path}")
+        return values
+
+    class Config:
+        schema_extra = {
+            "required": [
+                "graph",
+                "runs",
+            ]
+        }
+
+
+# endregion Batch
+
+
+# region Queue Items
+
+DEFAULT_QUEUE_ID = "default"
+
+QUEUE_ITEM_STATUS = Literal["pending", "in_progress", "completed", "failed", "canceled"]
+
+
+def get_field_values(queue_item_dict: dict) -> Optional[list[NodeFieldValue]]:
+    field_values_raw = queue_item_dict.get("field_values", None)
+    return parse_raw_as(list[NodeFieldValue], field_values_raw) if field_values_raw is not None else None
+
+
+def get_session(queue_item_dict: dict) -> GraphExecutionState:
+    session_raw = queue_item_dict.get("session", "{}")
+    return parse_raw_as(GraphExecutionState, session_raw)
+
+
+class SessionQueueItemWithoutGraph(BaseModel):
+    """Session queue item without the full graph. Used for serialization."""
+
+    item_id: str = Field(description="The unique identifier of the session queue item")
+    order_id: int = Field(description="The auto-incrementing ID of the session queue item")
+    status: QUEUE_ITEM_STATUS = Field(default="pending", description="The status of this queue item")
+    priority: int = Field(default=0, description="The priority of this queue item")
+    batch_id: str = Field(description="The ID of the batch associated with this queue item")
+    session_id: str = Field(
+        description="The ID of the session associated with this queue item. The session doesn't exist in graph_executions until the queue item is executed."
+    )
+    field_values: Optional[list[NodeFieldValue]] = Field(
+        default=None, description="The field values that were used for this queue item"
+    )
+    queue_id: str = Field(description="The id of the queue with which this item is associated")
+    error: Optional[str] = Field(default=None, description="The error message if this queue item errored")
+    created_at: Union[datetime.datetime, str] = Field(description="When this queue item was created")
+    updated_at: Union[datetime.datetime, str] = Field(description="When this queue item was updated")
+    started_at: Optional[Union[datetime.datetime, str]] = Field(description="When this queue item was started")
+    completed_at: Optional[Union[datetime.datetime, str]] = Field(description="When this queue item was completed")
+
+    @classmethod
+    def from_dict(cls, queue_item_dict: dict) -> "SessionQueueItemDTO":
+        # must parse these manually
+        queue_item_dict["field_values"] = get_field_values(queue_item_dict)
+        return SessionQueueItemDTO(**queue_item_dict)
+
+    class Config:
+        schema_extra = {
+            "required": [
+                "item_id",
+                "order_id",
+                "status",
+                "batch_id",
+                "queue_id",
+                "session_id",
+                "priority",
+                "session_id",
+                "created_at",
+                "updated_at",
+            ]
+        }
+
+
+class SessionQueueItemDTO(SessionQueueItemWithoutGraph):
+    pass
+
+
+class SessionQueueItem(SessionQueueItemWithoutGraph):
+    session: GraphExecutionState = Field(description="The fully-populated session to be executed")
+
+    @classmethod
+    def from_dict(cls, queue_item_dict: dict) -> "SessionQueueItem":
+        # must parse these manually
+        queue_item_dict["field_values"] = get_field_values(queue_item_dict)
+        queue_item_dict["session"] = get_session(queue_item_dict)
+        return SessionQueueItem(**queue_item_dict)
+
+    class Config:
+        schema_extra = {
+            "required": [
+                "item_id",
+                "order_id",
+                "status",
+                "batch_id",
+                "queue_id",
+                "session_id",
+                "session",
+                "priority",
+                "session_id",
+                "created_at",
+                "updated_at",
+            ]
+        }
+
+
+# endregion Queue Items
+
+# region Query Results
+
+
+class SessionQueueStatus(BaseModel):
+    queue_id: str = Field(..., description="The ID of the queue")
+    item_id: Optional[str] = Field(description="The current queue item id")
+    batch_id: Optional[str] = Field(description="The current queue item's batch id")
+    session_id: Optional[str] = Field(description="The current queue item's session id")
+    pending: int = Field(..., description="Number of queue items with status 'pending'")
+    in_progress: int = Field(..., description="Number of queue items with status 'in_progress'")
+    completed: int = Field(..., description="Number of queue items with status 'complete'")
+    failed: int = Field(..., description="Number of queue items with status 'error'")
+    canceled: int = Field(..., description="Number of queue items with status 'canceled'")
+    total: int = Field(..., description="Total number of queue items")
+
+
+class BatchStatus(BaseModel):
+    queue_id: str = Field(..., description="The ID of the queue")
+    batch_id: str = Field(..., description="The ID of the batch")
+    pending: int = Field(..., description="Number of queue items with status 'pending'")
+    in_progress: int = Field(..., description="Number of queue items with status 'in_progress'")
+    completed: int = Field(..., description="Number of queue items with status 'complete'")
+    failed: int = Field(..., description="Number of queue items with status 'error'")
+    canceled: int = Field(..., description="Number of queue items with status 'canceled'")
+    total: int = Field(..., description="Total number of queue items")
+
+
+class EnqueueBatchResult(BaseModel):
+    queue_id: str = Field(description="The ID of the queue")
+    enqueued: int = Field(description="The total number of queue items enqueued")
+    requested: int = Field(description="The total number of queue items requested to be enqueued")
+    batch: Batch = Field(description="The batch that was enqueued")
+    priority: int = Field(description="The priority of the enqueued batch")
+
+
+class EnqueueGraphResult(BaseModel):
+    enqueued: int = Field(description="The total number of queue items enqueued")
+    requested: int = Field(description="The total number of queue items requested to be enqueued")
+    batch: Batch = Field(description="The batch that was enqueued")
+    priority: int = Field(description="The priority of the enqueued batch")
+    queue_item: SessionQueueItemDTO = Field(description="The queue item that was enqueued")
+
+
+class ClearResult(BaseModel):
+    """Result of clearing the session queue"""
+
+    deleted: int = Field(..., description="Number of queue items deleted")
+
+
+class PruneResult(ClearResult):
+    """Result of pruning the session queue"""
+
+    pass
+
+
+class CancelByBatchIDsResult(BaseModel):
+    """Result of canceling by list of batch ids"""
+
+    canceled: int = Field(..., description="Number of queue items canceled")
+
+
+class CancelByQueueIDResult(CancelByBatchIDsResult):
+    """Result of canceling by queue id"""
+
+    pass
+
+
+class IsEmptyResult(BaseModel):
+    """Result of checking if the session queue is empty"""
+
+    is_empty: bool = Field(..., description="Whether the session queue is empty")
+
+
+class IsFullResult(BaseModel):
+    """Result of checking if the session queue is full"""
+
+    is_full: bool = Field(..., description="Whether the session queue is full")
+
+
+# endregion Query Results
+
+
+# region Util
+
+
+def populate_graph(graph: Graph, node_field_values: Iterable[NodeFieldValue]) -> Graph:
+    """
+    Populates the given graph with the given batch data items.
+    """
+    graph_clone = graph.copy(deep=True)
+    for item in node_field_values:
+        node = graph_clone.get_node(item.node_path)
+        if node is None:
+            continue
+        setattr(node, item.field_name, item.value)
+        graph_clone.update_node(item.node_path, node)
+    return graph_clone
+
+
+def create_session_nfv_tuples(
+    batch: Batch, maximum: int
+) -> Generator[tuple[GraphExecutionState, list[NodeFieldValue]], None, None]:
+    """
+    Create all graph permutations from the given batch data and graph. Yields tuples
+    of the form (graph, batch_data_items) where batch_data_items is the list of BatchDataItems
+    that was applied to the graph.
+    """
+
+    # TODO: Should this be a class method on Batch?
+
+    data: list[list[tuple[NodeFieldValue]]] = []
+    batch_data_collection = batch.data if batch.data is not None else []
+    for batch_datum_list in batch_data_collection:
+        # each batch_datum_list needs to be convered to NodeFieldValues and then zipped
+
+        node_field_values_to_zip: list[list[NodeFieldValue]] = []
+        for batch_datum in batch_datum_list:
+            node_field_values = [
+                NodeFieldValue(node_path=batch_datum.node_path, field_name=batch_datum.field_name, value=item)
+                for item in batch_datum.items
+            ]
+            node_field_values_to_zip.append(node_field_values)
+        data.append(list(zip(*node_field_values_to_zip)))
+
+    # create generator to yield session,nfv tuples
+    count = 0
+    for _ in range(batch.runs):
+        for d in product(*data):
+            if count >= maximum:
+                return
+            flat_node_field_values = list(chain.from_iterable(d))
+            graph = populate_graph(batch.graph, flat_node_field_values)
+            yield (GraphExecutionState(graph=graph), flat_node_field_values)
+            count += 1
+
+
+def calc_session_count(batch: Batch) -> int:
+    """
+    Calculates the number of sessions that would be created by the batch, without incurring
+    the overhead of actually generating them. Adapted from `create_sessions().
+    """
+    # TODO: Should this be a class method on Batch?
+    if not batch.data:
+        return batch.runs
+    data = []
+    for batch_datum_list in batch.data:
+        to_zip = []
+        for batch_datum in batch_datum_list:
+            batch_data_items = range(len(batch_datum.items))
+            to_zip.append(batch_data_items)
+        data.append(list(zip(*to_zip)))
+    data_product = list(product(*data))
+    return len(data_product) * batch.runs
+
+
+class SessionQueueValueToInsert(NamedTuple):
+    """A tuple of values to insert into the session_queue table"""
+
+    item_id: str  # item_id
+    queue_id: str  # queue_id
+    session: str  # session json
+    session_id: str  # session_id
+    batch_id: str  # batch_id
+    field_values: Optional[str]  # field_values json
+    priority: int  # priority
+    order_id: int  # order_id
+
+
+ValuesToInsert: TypeAlias = list[SessionQueueValueToInsert]
+
+
+def prepare_values_to_insert(
+    queue_id: str, batch: Batch, priority: int, max_new_queue_items: int, order_id: int
+) -> ValuesToInsert:
+    values_to_insert: ValuesToInsert = []
+    for session, field_values in create_session_nfv_tuples(batch, max_new_queue_items):
+        # sessions must have unique id
+        session.id = uuid_string()
+        values_to_insert.append(
+            SessionQueueValueToInsert(
+                uuid_string(),  # item_id
+                queue_id,  # queue_id
+                session.json(),  # session (json)
+                session.id,  # session_id
+                batch.batch_id,  # batch_id
+                # must use pydantic_encoder bc field_values is a list of models
+                json.dumps(field_values, default=pydantic_encoder) if field_values else None,  # field_values (json)
+                priority,  # priority
+                order_id,
+            )
+        )
+        order_id += 1
+    return values_to_insert
+
+
+# endregion Util

invokeai/app/services/session_queue/session_queue_sqlite.py

@@ -0,0 +1,829 @@
+import sqlite3
+import threading
+from typing import Optional, Union, cast
+
+from fastapi_events.handlers.local import local_handler
+from fastapi_events.typing import Event as FastAPIEvent
+
+from invokeai.app.services.events import EventServiceBase
+from invokeai.app.services.graph import Graph
+from invokeai.app.services.invoker import Invoker
+from invokeai.app.services.session_queue.session_queue_base import SessionQueueBase
+from invokeai.app.services.session_queue.session_queue_common import (
+    DEFAULT_QUEUE_ID,
+    QUEUE_ITEM_STATUS,
+    Batch,
+    BatchStatus,
+    CancelByBatchIDsResult,
+    CancelByQueueIDResult,
+    ClearResult,
+    EnqueueBatchResult,
+    EnqueueGraphResult,
+    IsEmptyResult,
+    IsFullResult,
+    PruneResult,
+    SessionQueueItem,
+    SessionQueueItemDTO,
+    SessionQueueItemNotFoundError,
+    SessionQueueStatus,
+    calc_session_count,
+    prepare_values_to_insert,
+)
+from invokeai.app.services.shared.models import CursorPaginatedResults
+
+
+class SqliteSessionQueue(SessionQueueBase):
+    __invoker: Invoker
+    __conn: sqlite3.Connection
+    __cursor: sqlite3.Cursor
+    __lock: threading.Lock
+
+    def start(self, invoker: Invoker) -> None:
+        self.__invoker = invoker
+        self._set_in_progress_to_canceled()
+        prune_result = self.prune(DEFAULT_QUEUE_ID)
+        local_handler.register(event_name=EventServiceBase.queue_event, _func=self._on_session_event)
+        self.__invoker.services.logger.info(f"Pruned {prune_result.deleted} finished queue items")
+
+    def __init__(self, conn: sqlite3.Connection, lock: threading.Lock) -> None:
+        super().__init__()
+        self.__conn = conn
+        # Enable row factory to get rows as dictionaries (must be done before making the cursor!)
+        self.__conn.row_factory = sqlite3.Row
+        self.__cursor = self.__conn.cursor()
+        self.__lock = lock
+        self._create_tables()
+
+    def _match_event_name(self, event: FastAPIEvent, match_in: list[str]) -> bool:
+        return event[1]["event"] in match_in
+
+    async def _on_session_event(self, event: FastAPIEvent) -> FastAPIEvent:
+        event_name = event[1]["event"]
+        match event_name:
+            case "graph_execution_state_complete":
+                await self._handle_complete_event(event)
+            case "invocation_error" | "session_retrieval_error" | "invocation_retrieval_error":
+                await self._handle_error_event(event)
+            case "session_canceled":
+                await self._handle_cancel_event(event)
+        return event
+
+    async def _handle_complete_event(self, event: FastAPIEvent) -> None:
+        try:
+            item_id = event[1]["data"]["queue_item_id"]
+            # When a queue item has an error, we get an error event, then a completed event.
+            # Mark the queue item completed only if it isn't already marked completed, e.g.
+            # by a previously-handled error event.
+            queue_item = self.get_queue_item(item_id)
+            if queue_item.status not in ["completed", "failed", "canceled"]:
+                queue_item = self._set_queue_item_status(item_id=queue_item.item_id, status="completed")
+                self.__invoker.services.events.emit_queue_item_status_changed(queue_item)
+        except SessionQueueItemNotFoundError:
+            return
+
+    async def _handle_error_event(self, event: FastAPIEvent) -> None:
+        try:
+            item_id = event[1]["data"]["queue_item_id"]
+            error = event[1]["data"]["error"]
+            queue_item = self.get_queue_item(item_id)
+            queue_item = self._set_queue_item_status(item_id=queue_item.item_id, status="failed", error=error)
+            self.__invoker.services.events.emit_queue_item_status_changed(queue_item)
+        except SessionQueueItemNotFoundError:
+            return
+
+    async def _handle_cancel_event(self, event: FastAPIEvent) -> None:
+        try:
+            item_id = event[1]["data"]["queue_item_id"]
+            queue_item = self.get_queue_item(item_id)
+            queue_item = self._set_queue_item_status(item_id=queue_item.item_id, status="canceled")
+            self.__invoker.services.events.emit_queue_item_status_changed(queue_item)
+        except SessionQueueItemNotFoundError:
+            return
+
+    def _create_tables(self) -> None:
+        """Creates the session queue tables, indicies, and triggers"""
+        try:
+            self.__lock.acquire()
+            self.__cursor.execute(
+                """--sql
+                CREATE TABLE IF NOT EXISTS session_queue (
+                    item_id TEXT NOT NULL PRIMARY KEY, -- the unique identifier of this queue item
+                    order_id INTEGER NOT NULL, -- used for ordering, cursor pagination
+                    batch_id TEXT NOT NULL, -- identifier of the batch this queue item belongs to
+                    queue_id TEXT NOT NULL, -- identifier of the queue this queue item belongs to
+                    session_id TEXT NOT NULL UNIQUE, -- duplicated data from the session column, for ease of access
+                    field_values TEXT, -- NULL if no values are associated with this queue item
+                    session TEXT NOT NULL, -- the session to be executed
+                    status TEXT NOT NULL DEFAULT 'pending', -- the status of the queue item, one of 'pending', 'in_progress', 'completed', 'failed', 'canceled'
+                    priority INTEGER NOT NULL DEFAULT 0, -- the priority, higher is more important
+                    error TEXT, -- any errors associated with this queue item
+                    created_at DATETIME NOT NULL DEFAULT(STRFTIME('%Y-%m-%d %H:%M:%f', 'NOW')),
+                    updated_at DATETIME NOT NULL DEFAULT(STRFTIME('%Y-%m-%d %H:%M:%f', 'NOW')), -- updated via trigger
+                    started_at DATETIME, -- updated via trigger
+                    completed_at DATETIME -- updated via trigger, completed items are cleaned up on application startup
+                    -- Ideally this is a FK, but graph_executions uses INSERT OR REPLACE, and REPLACE triggers the ON DELETE CASCADE...
+                    -- FOREIGN KEY (session_id) REFERENCES graph_executions (id) ON DELETE CASCADE
+                );
+                """
+            )
+
+            self.__cursor.execute(
+                """--sql
+                CREATE UNIQUE INDEX IF NOT EXISTS idx_session_queue_item_id ON session_queue(item_id);
+                """
+            )
+
+            self.__cursor.execute(
+                """--sql
+                CREATE UNIQUE INDEX IF NOT EXISTS idx_session_queue_order_id ON session_queue(order_id);
+                """
+            )
+
+            self.__cursor.execute(
+                """--sql
+                CREATE UNIQUE INDEX IF NOT EXISTS idx_session_queue_session_id ON session_queue(session_id);
+                """
+            )
+
+            self.__cursor.execute(
+                """--sql
+                CREATE INDEX IF NOT EXISTS idx_session_queue_batch_id ON session_queue(batch_id);
+                """
+            )
+
+            self.__cursor.execute(
+                """--sql
+                CREATE INDEX IF NOT EXISTS idx_session_queue_created_priority ON session_queue(priority);
+                """
+            )
+
+            self.__cursor.execute(
+                """--sql
+                CREATE INDEX IF NOT EXISTS idx_session_queue_created_status ON session_queue(status);
+                """
+            )
+
+            self.__cursor.execute(
+                """--sql
+                CREATE TRIGGER IF NOT EXISTS tg_session_queue_completed_at
+                AFTER UPDATE OF status ON session_queue
+                FOR EACH ROW
+                WHEN
+                  NEW.status = 'completed'
+                  OR NEW.status = 'failed'
+                  OR NEW.status = 'canceled'
+                BEGIN
+                  UPDATE session_queue
+                  SET completed_at = STRFTIME('%Y-%m-%d %H:%M:%f', 'NOW')
+                  WHERE item_id = NEW.item_id;
+                END;
+                """
+            )
+
+            self.__cursor.execute(
+                """--sql
+                CREATE TRIGGER IF NOT EXISTS tg_session_queue_started_at
+                AFTER UPDATE OF status ON session_queue
+                FOR EACH ROW
+                WHEN
+                  NEW.status = 'in_progress'
+                BEGIN
+                  UPDATE session_queue
+                  SET started_at = STRFTIME('%Y-%m-%d %H:%M:%f', 'NOW')
+                  WHERE item_id = NEW.item_id;
+                END;
+                """
+            )
+
+            self.__cursor.execute(
+                """--sql
+                CREATE TRIGGER IF NOT EXISTS tg_session_queue_updated_at
+                AFTER UPDATE
+                ON session_queue FOR EACH ROW
+                BEGIN
+                    UPDATE session_queue
+                    SET updated_at = STRFTIME('%Y-%m-%d %H:%M:%f', 'NOW')
+                    WHERE item_id = old.item_id;
+                END;
+                """
+            )
+
+            self.__conn.commit()
+        except Exception:
+            self.__conn.rollback()
+            raise
+        finally:
+            self.__lock.release()
+
+    def _set_in_progress_to_canceled(self) -> None:
+        """
+        Sets all in_progress queue items to canceled. Run on app startup, not associated with any queue.
+        This is necessary because the invoker may have been killed while processing a queue item.
+        """
+        try:
+            self.__lock.acquire()
+            self.__cursor.execute(
+                """--sql
+                UPDATE session_queue
+                SET status = 'canceled'
+                WHERE status = 'in_progress';
+                """
+            )
+        except Exception:
+            self.__conn.rollback()
+            raise
+        finally:
+            self.__lock.release()
+
+    def _get_current_queue_size(self, queue_id: str) -> int:
+        """Gets the current number of pending queue items"""
+        self.__cursor.execute(
+            """--sql
+            SELECT count(*)
+            FROM session_queue
+            WHERE
+              queue_id = ?
+              AND status = 'pending'
+            """,
+            (queue_id,),
+        )
+        return cast(int, self.__cursor.fetchone()[0])
+
+    def _get_highest_priority(self, queue_id: str) -> int:
+        """Gets the highest priority value in the queue"""
+        self.__cursor.execute(
+            """--sql
+            SELECT MAX(priority)
+            FROM session_queue
+            WHERE
+              queue_id = ?
+              AND status = 'pending'
+            """,
+            (queue_id,),
+        )
+        return cast(Union[int, None], self.__cursor.fetchone()[0]) or 0
+
+    def enqueue_graph(self, queue_id: str, graph: Graph, prepend: bool) -> EnqueueGraphResult:
+        enqueue_result = self.enqueue_batch(queue_id=queue_id, batch=Batch(graph=graph), prepend=prepend)
+        try:
+            self.__lock.acquire()
+            self.__cursor.execute(
+                """--sql
+                SELECT *
+                FROM session_queue
+                WHERE queue_id = ?
+                AND batch_id = ?
+                """,
+                (queue_id, enqueue_result.batch.batch_id),
+            )
+            result = cast(Union[sqlite3.Row, None], self.__cursor.fetchone())
+        except Exception:
+            self.__conn.rollback()
+            raise
+        finally:
+            self.__lock.release()
+        if result is None:
+            raise SessionQueueItemNotFoundError(f"No queue item with batch id {enqueue_result.batch.batch_id}")
+        return EnqueueGraphResult(
+            **enqueue_result.dict(),
+            queue_item=SessionQueueItemDTO.from_dict(dict(result)),
+        )
+
+    def enqueue_batch(self, queue_id: str, batch: Batch, prepend: bool) -> EnqueueBatchResult:
+        try:
+            self.__lock.acquire()
+
+            # TODO: how does this work in a multi-user scenario?
+            current_queue_size = self._get_current_queue_size(queue_id)
+            max_queue_size = self.__invoker.services.configuration.get_config().max_queue_size
+            max_new_queue_items = max_queue_size - current_queue_size
+
+            priority = 0
+            if prepend:
+                priority = self._get_highest_priority(queue_id) + 1
+
+            self.__cursor.execute(
+                """--sql
+                SELECT MAX(order_id)
+                FROM session_queue
+                """
+            )
+            max_order_id = cast(Optional[int], self.__cursor.fetchone()[0]) or 0
+
+            requested_count = calc_session_count(batch)
+            values_to_insert = prepare_values_to_insert(
+                queue_id=queue_id,
+                batch=batch,
+                priority=priority,
+                max_new_queue_items=max_new_queue_items,
+                order_id=max_order_id + 1,
+            )
+            enqueued_count = len(values_to_insert)
+
+            if requested_count > enqueued_count:
+                values_to_insert = values_to_insert[:max_new_queue_items]
+
+            self.__cursor.executemany(
+                """--sql
+                INSERT INTO session_queue (item_id, queue_id, session, session_id, batch_id, field_values, priority, order_id)
+                VALUES (?, ?, ?, ?, ?, ?, ?, ?)
+                """,
+                values_to_insert,
+            )
+            self.__conn.commit()
+        except Exception:
+            self.__conn.rollback()
+            raise
+        finally:
+            self.__lock.release()
+        enqueue_result = EnqueueBatchResult(
+            queue_id=queue_id,
+            requested=requested_count,
+            enqueued=enqueued_count,
+            batch=batch,
+            priority=priority,
+        )
+        self.__invoker.services.events.emit_batch_enqueued(enqueue_result)
+        return enqueue_result
+
+    def dequeue(self) -> Optional[SessionQueueItem]:
+        try:
+            self.__lock.acquire()
+            self.__cursor.execute(
+                """--sql
+                SELECT *
+                FROM session_queue
+                WHERE status = 'pending'
+                ORDER BY
+                  priority DESC,
+                  order_id ASC
+                LIMIT 1
+                """
+            )
+            result = cast(Union[sqlite3.Row, None], self.__cursor.fetchone())
+        except Exception:
+            self.__conn.rollback()
+            raise
+        finally:
+            self.__lock.release()
+        if result is None:
+            return None
+        queue_item = SessionQueueItem.from_dict(dict(result))
+        queue_item = self._set_queue_item_status(item_id=queue_item.item_id, status="in_progress")
+        self.__invoker.services.events.emit_queue_item_status_changed(queue_item)
+        return queue_item
+
+    def get_next(self, queue_id: str) -> Optional[SessionQueueItem]:
+        try:
+            self.__lock.acquire()
+            self.__cursor.execute(
+                """--sql
+                SELECT *
+                FROM session_queue
+                WHERE
+                  queue_id = ?
+                  AND status = 'pending'
+                ORDER BY
+                  priority DESC,
+                  created_at ASC
+                LIMIT 1
+                """,
+                (queue_id,),
+            )
+            result = cast(Union[sqlite3.Row, None], self.__cursor.fetchone())
+        except Exception:
+            self.__conn.rollback()
+            raise
+        finally:
+            self.__lock.release()
+        if result is None:
+            return None
+        return SessionQueueItem.from_dict(dict(result))
+
+    def get_current(self, queue_id: str) -> Optional[SessionQueueItem]:
+        try:
+            self.__lock.acquire()
+            self.__cursor.execute(
+                """--sql
+                SELECT *
+                FROM session_queue
+                WHERE
+                  queue_id = ?
+                  AND status = 'in_progress'
+                LIMIT 1
+                """,
+                (queue_id,),
+            )
+            result = cast(Union[sqlite3.Row, None], self.__cursor.fetchone())
+        except Exception:
+            self.__conn.rollback()
+            raise
+        finally:
+            self.__lock.release()
+        if result is None:
+            return None
+        return SessionQueueItem.from_dict(dict(result))
+
+    def _set_queue_item_status(
+        self, item_id: str, status: QUEUE_ITEM_STATUS, error: Optional[str] = None
+    ) -> SessionQueueItem:
+        try:
+            self.__lock.acquire()
+            self.__cursor.execute(
+                """--sql
+                UPDATE session_queue
+                SET status = ?, error = ?
+                WHERE item_id = ?
+                """,
+                (status, error, item_id),
+            )
+            self.__conn.commit()
+        except Exception:
+            self.__conn.rollback()
+            raise
+        finally:
+            self.__lock.release()
+        return self.get_queue_item(item_id)
+
+    def is_empty(self, queue_id: str) -> IsEmptyResult:
+        try:
+            self.__lock.acquire()
+            self.__cursor.execute(
+                """--sql
+                SELECT count(*)
+                FROM session_queue
+                WHERE queue_id = ?
+                """,
+                (queue_id,),
+            )
+            is_empty = cast(int, self.__cursor.fetchone()[0]) == 0
+        except Exception:
+            self.__conn.rollback()
+            raise
+        finally:
+            self.__lock.release()
+        return IsEmptyResult(is_empty=is_empty)
+
+    def is_full(self, queue_id: str) -> IsFullResult:
+        try:
+            self.__lock.acquire()
+            self.__cursor.execute(
+                """--sql
+                SELECT count(*)
+                FROM session_queue
+                WHERE queue_id = ?
+                """,
+                (queue_id,),
+            )
+            max_queue_size = self.__invoker.services.configuration.max_queue_size
+            is_full = cast(int, self.__cursor.fetchone()[0]) >= max_queue_size
+        except Exception:
+            self.__conn.rollback()
+            raise
+        finally:
+            self.__lock.release()
+        return IsFullResult(is_full=is_full)
+
+    def delete_queue_item(self, item_id: str) -> SessionQueueItem:
+        queue_item = self.get_queue_item(item_id=item_id)
+        try:
+            self.__lock.acquire()
+            self.__cursor.execute(
+                """--sql
+                DELETE FROM session_queue
+                WHERE
+                  item_id = ?
+                """,
+                (item_id,),
+            )
+            self.__conn.commit()
+        except Exception:
+            self.__conn.rollback()
+            raise
+        finally:
+            self.__lock.release()
+        return queue_item
+
+    def clear(self, queue_id: str) -> ClearResult:
+        try:
+            self.__lock.acquire()
+            self.__cursor.execute(
+                """--sql
+                SELECT COUNT(*)
+                FROM session_queue
+                WHERE queue_id = ?
+                """,
+                (queue_id,),
+            )
+            count = self.__cursor.fetchone()[0]
+            self.__cursor.execute(
+                """--sql
+                DELETE
+                FROM session_queue
+                WHERE queue_id = ?
+                """,
+                (queue_id,),
+            )
+            self.__conn.commit()
+        except Exception:
+            self.__conn.rollback()
+            raise
+        finally:
+            self.__lock.release()
+        self.__invoker.services.events.emit_queue_cleared(queue_id)
+        return ClearResult(deleted=count)
+
+    def prune(self, queue_id: str) -> PruneResult:
+        try:
+            where = """--sql
+                WHERE
+                  queue_id = ?
+                  AND (
+                    status = 'completed'
+                    OR status = 'failed'
+                    OR status = 'canceled'
+                  )
+                """
+            self.__lock.acquire()
+            self.__cursor.execute(
+                f"""--sql
+                SELECT COUNT(*)
+                FROM session_queue
+                {where};
+                """,
+                (queue_id,),
+            )
+            count = self.__cursor.fetchone()[0]
+            self.__cursor.execute(
+                f"""--sql
+                DELETE
+                FROM session_queue
+                {where};
+                """,
+                (queue_id,),
+            )
+            self.__conn.commit()
+        except Exception:
+            self.__conn.rollback()
+            raise
+        finally:
+            self.__lock.release()
+        return PruneResult(deleted=count)
+
+    def cancel_queue_item(self, item_id: str) -> SessionQueueItem:
+        queue_item = self.get_queue_item(item_id)
+        if queue_item.status not in ["canceled", "failed", "completed"]:
+            queue_item = self._set_queue_item_status(item_id=item_id, status="canceled")
+            self.__invoker.services.queue.cancel(queue_item.session_id)
+            self.__invoker.services.events.emit_session_canceled(
+                queue_item_id=queue_item.item_id,
+                queue_id=queue_item.queue_id,
+                graph_execution_state_id=queue_item.session_id,
+            )
+            self.__invoker.services.events.emit_queue_item_status_changed(queue_item)
+        return queue_item
+
+    def cancel_by_batch_ids(self, queue_id: str, batch_ids: list[str]) -> CancelByBatchIDsResult:
+        try:
+            current_queue_item = self.get_current(queue_id)
+            self.__lock.acquire()
+            placeholders = ", ".join(["?" for _ in batch_ids])
+            where = f"""--sql
+                WHERE
+                  queue_id == ?
+                  AND batch_id IN ({placeholders})
+                  AND status != 'canceled'
+                  AND status != 'completed'
+                  AND status != 'failed'
+                """
+            params = [queue_id] + batch_ids
+            self.__cursor.execute(
+                f"""--sql
+                SELECT COUNT(*)
+                FROM session_queue
+                {where};
+                """,
+                tuple(params),
+            )
+            count = self.__cursor.fetchone()[0]
+            self.__cursor.execute(
+                f"""--sql
+                UPDATE session_queue
+                SET status = 'canceled'
+                {where};
+                """,
+                tuple(params),
+            )
+            self.__conn.commit()
+            if current_queue_item is not None and current_queue_item.batch_id in batch_ids:
+                self.__invoker.services.queue.cancel(current_queue_item.session_id)
+                self.__invoker.services.events.emit_session_canceled(
+                    queue_item_id=current_queue_item.item_id,
+                    queue_id=current_queue_item.queue_id,
+                    graph_execution_state_id=current_queue_item.session_id,
+                )
+                self.__invoker.services.events.emit_queue_item_status_changed(current_queue_item)
+        except Exception:
+            self.__conn.rollback()
+            raise
+        finally:
+            self.__lock.release()
+        return CancelByBatchIDsResult(canceled=count)
+
+    def cancel_by_queue_id(self, queue_id: str) -> CancelByQueueIDResult:
+        try:
+            current_queue_item = self.get_current(queue_id)
+            self.__lock.acquire()
+            where = """--sql
+                WHERE
+                  queue_id is ?
+                  AND status != 'canceled'
+                  AND status != 'completed'
+                  AND status != 'failed'
+                """
+            params = [queue_id]
+            self.__cursor.execute(
+                f"""--sql
+                SELECT COUNT(*)
+                FROM session_queue
+                {where};
+                """,
+                tuple(params),
+            )
+            count = self.__cursor.fetchone()[0]
+            self.__cursor.execute(
+                f"""--sql
+                UPDATE session_queue
+                SET status = 'canceled'
+                {where};
+                """,
+                tuple(params),
+            )
+            self.__conn.commit()
+            if current_queue_item is not None and current_queue_item.queue_id == queue_id:
+                self.__invoker.services.queue.cancel(current_queue_item.session_id)
+                self.__invoker.services.events.emit_session_canceled(
+                    queue_item_id=current_queue_item.item_id,
+                    queue_id=current_queue_item.queue_id,
+                    graph_execution_state_id=current_queue_item.session_id,
+                )
+                self.__invoker.services.events.emit_queue_item_status_changed(current_queue_item)
+        except Exception:
+            self.__conn.rollback()
+            raise
+        finally:
+            self.__lock.release()
+        return CancelByQueueIDResult(canceled=count)
+
+    def get_queue_item(self, item_id: str) -> SessionQueueItem:
+        try:
+            self.__lock.acquire()
+            self.__cursor.execute(
+                """--sql
+                SELECT * FROM session_queue
+                WHERE
+                  item_id = ?
+                """,
+                (item_id,),
+            )
+            result = cast(Union[sqlite3.Row, None], self.__cursor.fetchone())
+        except Exception:
+            self.__conn.rollback()
+            raise
+        finally:
+            self.__lock.release()
+        if result is None:
+            raise SessionQueueItemNotFoundError(f"No queue item with id {item_id}")
+        return SessionQueueItem.from_dict(dict(result))
+
+    def list_queue_items(
+        self,
+        queue_id: str,
+        limit: int,
+        priority: int,
+        order_id: Optional[int] = None,
+        status: Optional[QUEUE_ITEM_STATUS] = None,
+    ) -> CursorPaginatedResults[SessionQueueItemDTO]:
+        try:
+            self.__lock.acquire()
+            query = """--sql
+                SELECT item_id,
+                    order_id,
+                    status,
+                    priority,
+                    field_values,
+                    error,
+                    created_at,
+                    updated_at,
+                    completed_at,
+                    started_at,
+                    session_id,
+                    batch_id,
+                    queue_id
+                FROM session_queue
+                WHERE queue_id = ?
+            """
+            params: list[Union[str, int]] = [queue_id]
+
+            if status is not None:
+                query += """--sql
+                    AND status = ?
+                    """
+                params.append(status)
+
+            if order_id is not None:
+                query += """--sql
+                    AND (priority < ?) OR (priority = ? AND order_id > ?)
+                    """
+                params.extend([priority, priority, order_id])
+
+            query += """--sql
+                ORDER BY
+                  priority DESC,
+                  order_id ASC
+                LIMIT ?
+                """
+            params.append(limit + 1)
+            self.__cursor.execute(query, params)
+            results = cast(list[sqlite3.Row], self.__cursor.fetchall())
+            items = [SessionQueueItemDTO.from_dict(dict(result)) for result in results]
+            has_more = False
+            if len(items) > limit:
+                # remove the extra item
+                items.pop()
+                has_more = True
+        except Exception:
+            self.__conn.rollback()
+            raise
+        finally:
+            self.__lock.release()
+        return CursorPaginatedResults(items=items, limit=limit, has_more=has_more)
+
+    def get_queue_status(self, queue_id: str) -> SessionQueueStatus:
+        try:
+            self.__lock.acquire()
+            self.__cursor.execute(
+                """--sql
+                SELECT status, count(*)
+                FROM session_queue
+                WHERE queue_id = ?
+                GROUP BY status
+                """,
+                (queue_id,),
+            )
+            counts_result = cast(list[sqlite3.Row], self.__cursor.fetchall())
+        except Exception:
+            self.__conn.rollback()
+            raise
+        finally:
+            self.__lock.release()
+
+        current_item = self.get_current(queue_id=queue_id)
+        total = sum(row[1] for row in counts_result)
+        counts: dict[str, int] = {row[0]: row[1] for row in counts_result}
+        return SessionQueueStatus(
+            queue_id=queue_id,
+            item_id=current_item.item_id if current_item else None,
+            session_id=current_item.session_id if current_item else None,
+            batch_id=current_item.batch_id if current_item else None,
+            pending=counts.get("pending", 0),
+            in_progress=counts.get("in_progress", 0),
+            completed=counts.get("completed", 0),
+            failed=counts.get("failed", 0),
+            canceled=counts.get("canceled", 0),
+            total=total,
+        )
+
+    def get_batch_status(self, queue_id: str, batch_id: str) -> BatchStatus:
+        try:
+            self.__lock.acquire()
+            self.__cursor.execute(
+                """--sql
+                SELECT status, count(*)
+                FROM session_queue
+                WHERE
+                  queue_id = ?
+                  AND batch_id = ?
+                GROUP BY status
+                """,
+                (queue_id, batch_id),
+            )
+            result = cast(list[sqlite3.Row], self.__cursor.fetchall())
+            total = sum(row[1] for row in result)
+            counts: dict[str, int] = {row[0]: row[1] for row in result}
+        except Exception:
+            self.__conn.rollback()
+            raise
+        finally:
+            self.__lock.release()
+
+        return BatchStatus(
+            batch_id=batch_id,
+            queue_id=queue_id,
+            pending=counts.get("pending", 0),
+            in_progress=counts.get("in_progress", 0),
+            completed=counts.get("completed", 0),
+            failed=counts.get("failed", 0),
+            canceled=counts.get("canceled", 0),
+            total=total,
+        )

invokeai/app/services/shared/models.py

@@ -0,0 +1,14 @@
+from typing import Generic, TypeVar
+
+from pydantic import BaseModel, Field
+from pydantic.generics import GenericModel
+
+GenericBaseModel = TypeVar("GenericBaseModel", bound=BaseModel)
+
+
+class CursorPaginatedResults(GenericModel, Generic[GenericBaseModel]):
+    """Cursor-paginated results"""
+
+    limit: int = Field(..., description="Limit of items to get")
+    has_more: bool = Field(..., description="Whether there are more items available")
+    items: list[GenericBaseModel] = Field(..., description="Items")

invokeai/app/services/sqlite.py

@@ -1,5 +1,5 @@
 import sqlite3
-from threading import Lock
+import threading
 from typing import Generic, Optional, TypeVar, get_args
 
 from pydantic import BaseModel, parse_raw_as
@@ -12,23 +12,19 @@ sqlite_memory = ":memory:"
 
 
 class SqliteItemStorage(ItemStorageABC, Generic[T]):
-    _filename: str
     _table_name: str
     _conn: sqlite3.Connection
     _cursor: sqlite3.Cursor
     _id_field: str
-    _lock: Lock
+    _lock: threading.Lock
 
-    def __init__(self, filename: str, table_name: str, id_field: str = "id"):
+    def __init__(self, conn: sqlite3.Connection, table_name: str, lock: threading.Lock, id_field: str = "id"):
         super().__init__()
 
-        self._filename = filename
         self._table_name = table_name
         self._id_field = id_field  # TODO: validate that T has this field
-        self._lock = Lock()
-        self._conn = sqlite3.connect(
-            self._filename, check_same_thread=False
-        )  # TODO: figure out a better threading solution
+        self._lock = lock
+        self._conn = conn
         self._cursor = self._conn.cursor()
 
         self._create_table()
@@ -49,8 +45,7 @@ class SqliteItemStorage(ItemStorageABC, Generic[T]):
 
     def _parse_item(self, item: str) -> T:
         item_type = get_args(self.__orig_class__)[0]
-        parsed = parse_raw_as(item_type, item)
-        return parsed
+        return parse_raw_as(item_type, item)
 
     def set(self, item: T):
         try:

invokeai/app/services/thread.py

@@ -0,0 +1,3 @@
+import threading
+
+lock = threading.Lock()

invokeai/app/util/controlnet_utils.py

@@ -1,12 +1,12 @@
 from typing import Union
-import torch
-import numpy as np
-import cv2
-from PIL import Image
-from diffusers.utils import PIL_INTERPOLATION
 
-from einops import rearrange
+import cv2
+import numpy as np
+import torch
 from controlnet_aux.util import HWC3
+from diffusers.utils import PIL_INTERPOLATION
+from einops import rearrange
+from PIL import Image
 
 ###################################################################
 # Copy of scripts/lvminthin.py from Mikubill/sd-webui-controlnet