Removes unused file

backend/modules/metadata.py

@@ -1,87 +0,0 @@
-def parameters_to_metadata(opt,
-                   seeds=[],
-                   model_hash=None,
-                   postprocessing=None):
-    '''
-    Given an Args object, returns a dict containing the keys and
-    structure of the proposed stable diffusion metadata standard
-    https://github.com/lstein/stable-diffusion/discussions/392
-    This is intended to be turned into JSON and stored in the 
-    "sd
-    '''
-
-    # top-level metadata minus `image` or `images`
-    metadata = {
-        'model'       : 'stable diffusion',
-        'model_id'    : opt.model,
-        'model_hash'  : model_hash,
-        'app_id'      : APP_ID,
-        'app_version' : APP_VERSION,
-    }
-
-    # add some RFC266 fields that are generated internally, and not as
-    # user args
-    image_dict = opt.to_dict(
-        postprocessing=postprocessing
-    )
-
-    # 'postprocessing' is either null or an array of postprocessing metadatal
-    if postprocessing:
-        # TODO: This is just a hack until postprocessing pipeline work completed
-        image_dict['postprocessing'] = []
-
-        if image_dict['gfpgan_strength'] and image_dict['gfpgan_strength'] > 0:
-            image_dict['postprocessing'].append('GFPGAN (not RFC compliant)')
-        if image_dict['upscale'] and image_dict['upscale'][0] > 0:
-            image_dict['postprocessing'].append('ESRGAN (not RFC compliant)')
-    else:
-        image_dict['postprocessing'] = None
-
-    # remove any image keys not mentioned in RFC #266
-    rfc266_img_fields = ['type','postprocessing','sampler','prompt','seed','variations','steps',
-                         'cfg_scale','step_number','width','height','extra','strength']
-
-    rfc_dict ={}
-
-    for item in image_dict.items():
-        key,value = item
-        if key in rfc266_img_fields:
-            rfc_dict[key] = value
-
-    # semantic drift
-    rfc_dict['sampler']  = image_dict.get('sampler_name',None)
-
-    # display weighted subprompts (liable to change)
-    if opt.prompt:
-        subprompts = split_weighted_subprompts(opt.prompt)
-        subprompts = [{'prompt':x[0],'weight':x[1]} for x in subprompts]
-        rfc_dict['prompt'] = subprompts
-
-    # 'variations' should always exist and be an array, empty or consisting of {'seed': seed, 'weight': weight} pairs
-    rfc_dict['variations'] = [{'seed':x[0],'weight':x[1]} for x in opt.with_variations] if opt.with_variations else []
-
-    if opt.init_img:
-        rfc_dict['type']           = 'img2img'
-        rfc_dict['strength_steps'] = rfc_dict.pop('strength')
-        rfc_dict['orig_hash']      = calculate_init_img_hash(opt.init_img)
-        rfc_dict['sampler']        = 'ddim'  # TODO: FIX ME WHEN IMG2IMG SUPPORTS ALL SAMPLERS
-    else:
-        rfc_dict['type']  = 'txt2img'
-        rfc_dict.pop('strength')
-
-    if len(seeds)==0 and opt.seed:
-        seeds=[seed]
-
-    if opt.grid:
-        images = []
-        for seed in seeds:
-            rfc_dict['seed'] = seed
-            images.append(copy.copy(rfc_dict))
-        metadata['images'] = images
-    else:
-        # there should only ever be a single seed if we did not generate a grid
-        assert len(seeds) == 1, 'Expected a single seed'
-        rfc_dict['seed'] = seeds[0]
-        metadata['image'] = rfc_dict
-
-    return metadata