diff --git a/frontend/scripts/flowy-tool/src/dart_event/dart_event.rs b/frontend/scripts/flowy-tool/src/dart_event/dart_event.rs
index e4288033af..167663a6b2 100644
--- a/frontend/scripts/flowy-tool/src/dart_event/dart_event.rs
+++ b/frontend/scripts/flowy-tool/src/dart_event/dart_event.rs
@@ -15,7 +15,7 @@ impl DartEventCodeGen {
         let event_crates = parse_dart_event_files(self.rust_sources.clone());
         let event_ast = event_crates
             .iter()
-            .map(|event_crate| parse_event_crate(event_crate))
+            .map(parse_event_crate)
             .flatten()
             .collect::<Vec<_>>();
 
@@ -62,7 +62,7 @@ pub fn parse_dart_event_files(roots: Vec<String>) -> Vec<DartEventCrate> {
             .into_iter()
             .filter_entry(|e| !is_hidden(e))
             .filter_map(|e| e.ok())
-            .filter(|e| is_crate_dir(e))
+            .filter(is_crate_dir)
             .flat_map(|e| parse_crate_config_from(&e))
             .map(|crate_config| DartEventCrate::from_config(&crate_config))
             .collect::<Vec<DartEventCrate>>();
diff --git a/frontend/scripts/flowy-tool/src/main.rs b/frontend/scripts/flowy-tool/src/main.rs
index c25b0041b5..7b23f2d00a 100644
--- a/frontend/scripts/flowy-tool/src/main.rs
+++ b/frontend/scripts/flowy-tool/src/main.rs
@@ -10,7 +10,7 @@ fn main() {
 
     let matches = app().get_matches();
 
-    if let Some(ref matches) = matches.subcommand_matches("pb-gen") {
+    if let Some(matches) = matches.subcommand_matches("pb-gen") {
         let rust_sources: Vec<String> = matches
             .values_of("rust_sources")
             .unwrap()
@@ -27,7 +27,7 @@ fn main() {
             .gen();
     }
 
-    if let Some(ref matches) = matches.subcommand_matches("dart-event") {
+    if let Some(matches) = matches.subcommand_matches("dart-event") {
         let rust_sources: Vec<String> = matches
             .values_of("rust_sources")
             .unwrap()
diff --git a/frontend/scripts/flowy-tool/src/proto/ast.rs b/frontend/scripts/flowy-tool/src/proto/ast.rs
index e03fd9a3a2..ba02480685 100644
--- a/frontend/scripts/flowy-tool/src/proto/ast.rs
+++ b/frontend/scripts/flowy-tool/src/proto/ast.rs
@@ -59,7 +59,7 @@ fn parse_files_protobuf(proto_crate_path: &str, proto_output_dir: &str) -> Vec<P
                 .iter()
                 .filter(|f| f.attrs.pb_index().is_some())
                 .for_each(|f| {
-                    struct_template.set_field(&f);
+                    struct_template.set_field(f);
                 });
 
             let s = struct_template.render().unwrap();
@@ -70,7 +70,7 @@ fn parse_files_protobuf(proto_crate_path: &str, proto_output_dir: &str) -> Vec<P
         let enums = get_ast_enums(&ast);
         enums.iter().for_each(|e| {
             let mut enum_template = EnumTemplate::new();
-            enum_template.set_message_enum(&e);
+            enum_template.set_message_enum(e);
             let s = enum_template.render().unwrap();
             proto_file_content.push_str(s.as_ref());
             proto_file_content.push('\n');
diff --git a/shared-lib/lib-infra/src/pb.rs b/shared-lib/lib-infra/src/pb.rs
index 1b0f3aa70f..650d233ef7 100644
--- a/shared-lib/lib-infra/src/pb.rs
+++ b/shared-lib/lib-infra/src/pb.rs
@@ -43,12 +43,19 @@ pub fn gen_files(crate_name: &str, root: &str) {
 
 #[cfg(feature = "dart")]
 fn gen_pb_for_dart(name: &str, root: &str, paths: &Vec<String>, file_names: &Vec<String>) {
-    let output = format!(
-        "{}/{}/{}",
-        env!("CARGO_MAKE_WORKING_DIRECTORY"),
-        env!("FLUTTER_FLOWY_SDK_PATH"),
-        name
-    );
+    if std::env::var("CARGO_MAKE_WORKING_DIRECTORY").is_err() {
+        log::warn!("CARGO_MAKE_WORKING_DIRECTORY was not set, skip generate dart pb");
+        return;
+    }
+
+    if std::env::var("FLUTTER_FLOWY_SDK_PATH").is_err() {
+        log::warn!("FLUTTER_FLOWY_SDK_PATH was not set, skip generate dart pb");
+        return;
+    }
+
+    let workspace_dir = std::env::var("CARGO_MAKE_WORKING_DIRECTORY").unwrap();
+    let flutter_sdk_path = std::env::var("FLUTTER_FLOWY_SDK_PATH").unwrap();
+    let output = format!("{}/{}/{}", workspace_dir, flutter_sdk_path, name);
     if !std::path::Path::new(&output).exists() {
         std::fs::create_dir_all(&output).unwrap();
     }
diff --git a/shared-lib/lib-infra/src/proto_gen/ast.rs b/shared-lib/lib-infra/src/proto_gen/ast.rs
index 2c313c0dea..8da1f64f62 100644
--- a/shared-lib/lib-infra/src/proto_gen/ast.rs
+++ b/shared-lib/lib-infra/src/proto_gen/ast.rs
@@ -56,7 +56,7 @@ fn parse_files_protobuf(proto_crate_path: &str, proto_output_dir: &str) -> Vec<P
             struct_template.set_message_struct_name(&s.name);
 
             s.fields.iter().filter(|f| f.attrs.pb_index().is_some()).for_each(|f| {
-                struct_template.set_field(&f);
+                struct_template.set_field(f);
             });
 
             let s = struct_template.render().unwrap();
@@ -67,7 +67,7 @@ fn parse_files_protobuf(proto_crate_path: &str, proto_output_dir: &str) -> Vec<P
         let enums = get_ast_enums(&ast);
         enums.iter().for_each(|e| {
             let mut enum_template = EnumTemplate::new();
-            enum_template.set_message_enum(&e);
+            enum_template.set_message_enum(e);
             let s = enum_template.render().unwrap();
             proto_file_content.push_str(s.as_ref());
             proto_file_content.push('\n');
diff --git a/shared-lib/lib-infra/src/proto_gen/mod.rs b/shared-lib/lib-infra/src/proto_gen/mod.rs
index 1bf7e159de..4d2f7c902b 100644
--- a/shared-lib/lib-infra/src/proto_gen/mod.rs
+++ b/shared-lib/lib-infra/src/proto_gen/mod.rs
@@ -1,3 +1,4 @@
+#![allow(clippy::module_inception)]
 mod ast;
 mod flowy_toml;
 mod proto_gen;
diff --git a/shared-lib/lib-infra/src/proto_gen/proto_gen.rs b/shared-lib/lib-infra/src/proto_gen/proto_gen.rs
index 6979ca9492..584d4395b1 100644
--- a/shared-lib/lib-infra/src/proto_gen/proto_gen.rs
+++ b/shared-lib/lib-infra/src/proto_gen/proto_gen.rs
@@ -1,6 +1,6 @@
 use crate::proto_gen::ast::parse_crate_protobuf;
 use crate::proto_gen::proto_info::ProtobufCrateContext;
-use crate::proto_gen::template::write_derive_meta;
+
 use crate::proto_gen::util::*;
 use crate::proto_gen::ProtoFile;
 use std::fs::File;
@@ -38,7 +38,7 @@ impl ProtoGenerator {
                 file.write_all(cache_str.as_bytes()).unwrap();
                 File::flush(file).unwrap();
             }
-            Err(err) => {
+            Err(_err) => {
                 panic!("Failed to open file: {}", protobuf_cache_path);
             }
         }
@@ -99,7 +99,7 @@ impl ProtoCache {
     fn from_crate_contexts(crate_contexts: &[ProtobufCrateContext]) -> Self {
         let proto_files = crate_contexts
             .iter()
-            .map(|ref crate_info| &crate_info.files)
+            .map(|crate_info| &crate_info.files)
             .flatten()
             .collect::<Vec<&ProtoFile>>();
 
diff --git a/shared-lib/lib-infra/src/proto_gen/proto_info.rs b/shared-lib/lib-infra/src/proto_gen/proto_info.rs
index 4f1ed49aa1..32b05e106c 100644
--- a/shared-lib/lib-infra/src/proto_gen/proto_info.rs
+++ b/shared-lib/lib-infra/src/proto_gen/proto_info.rs
@@ -109,7 +109,7 @@ pub fn parse_crate_info_from_path(roots: Vec<String>) -> Vec<ProtobufCrate> {
             .into_iter()
             .filter_entry(|e| !is_hidden(e))
             .filter_map(|e| e.ok())
-            .filter(|e| is_crate_dir(e))
+            .filter(is_crate_dir)
             .flat_map(|e| parse_crate_config_from(&e))
             .map(ProtobufCrate::from_config)
             .collect::<Vec<ProtobufCrate>>();
diff --git a/shared-lib/lib-infra/src/proto_gen/template/derive_meta/derive_meta.rs b/shared-lib/lib-infra/src/proto_gen/template/derive_meta/derive_meta.rs
index f84ebef5f7..336e5c201c 100644
--- a/shared-lib/lib-infra/src/proto_gen/template/derive_meta/derive_meta.rs
+++ b/shared-lib/lib-infra/src/proto_gen/template/derive_meta/derive_meta.rs
@@ -1,8 +1,5 @@
-use crate::proto_gen::proto_info::{ProtoFile, ProtobufCrateContext};
-use crate::proto_gen::template::{get_tera, read_file};
+use crate::proto_gen::template::get_tera;
 use itertools::Itertools;
-use std::fs::OpenOptions;
-use std::io::Write;
 use tera::Context;
 
 pub struct ProtobufDeriveMeta {
@@ -36,44 +33,3 @@ impl ProtobufDeriveMeta {
         }
     }
 }
-
-pub fn write_derive_meta(crate_infos: &[ProtobufCrateContext], derive_meta_dir: &str) {
-    let file_proto_infos = crate_infos
-        .iter()
-        .map(|ref crate_info| &crate_info.files)
-        .flatten()
-        .collect::<Vec<&ProtoFile>>();
-
-    let structs: Vec<String> = file_proto_infos
-        .iter()
-        .map(|info| info.structs.clone())
-        .flatten()
-        .collect();
-    let enums: Vec<String> = file_proto_infos
-        .iter()
-        .map(|info| info.enums.clone())
-        .flatten()
-        .collect();
-
-    let mut derive_template = ProtobufDeriveMeta::new(structs, enums);
-    let new_content = derive_template.render().unwrap();
-    let old_content = read_file(derive_meta_dir).unwrap();
-    if new_content == old_content {
-        return;
-    }
-    // println!("{}", diff_lines(&old_content, &new_content));
-    match OpenOptions::new()
-        .create(true)
-        .write(true)
-        .append(false)
-        .truncate(true)
-        .open(derive_meta_dir)
-    {
-        Ok(ref mut file) => {
-            file.write_all(new_content.as_bytes()).unwrap();
-        }
-        Err(err) => {
-            panic!("Failed to open log file: {}", err);
-        }
-    }
-}
diff --git a/shared-lib/lib-infra/src/proto_gen/template/mod.rs b/shared-lib/lib-infra/src/proto_gen/template/mod.rs
index 27624e66a2..e610bc373b 100644
--- a/shared-lib/lib-infra/src/proto_gen/template/mod.rs
+++ b/shared-lib/lib-infra/src/proto_gen/template/mod.rs
@@ -11,7 +11,13 @@ pub fn get_tera(directory: &str) -> Tera {
     let mut root = format!("{}/../", file!());
     root.push_str(directory);
 
-    let root_absolute_path = std::fs::canonicalize(root).unwrap().as_path().display().to_string();
+    let root_absolute_path = match std::fs::canonicalize(root) {
+        Ok(p) => p.as_path().display().to_string(),
+        Err(e) => {
+            panic!("canonicalize {} failed {:?}", root, e);
+        }
+    };
+
     let mut template_path = format!("{}/**/*.tera", root_absolute_path);
     if cfg!(windows) {
         // remove "\\?\" prefix on windows
@@ -27,6 +33,7 @@ pub fn get_tera(directory: &str) -> Tera {
     }
 }
 
+#[allow(dead_code)]
 pub fn read_file(path: &str) -> Option<String> {
     let mut file = File::open(path).unwrap_or_else(|_| panic!("Unable to open file at {}", path));
     let mut content = String::new();