disable stupid ffigen in build.rs by default

.github/workflows/flutter-build.yml

@@ -426,11 +426,6 @@ jobs:
           prefix-key: rustdesk-lib-cache
           key: ${{ matrix.job.target }}-${{ matrix.job.extra-build-features }}
 
-      - name: Disable rust bridge build
-        shell: bash
-        run: |
-          sed -i build.rs.bak "s/gen_flutter_rust_bridge();/\/\//g" build.rs
-
       - name: Build rustdesk lib
         env:
           VCPKG_ROOT: /opt/rustdesk_thirdparty_lib/vcpkg
@@ -525,10 +520,6 @@ jobs:
           prefix-key: rustdesk-lib-cache
           key: ${{ matrix.job.target }}-${{ matrix.job.extra-build-features }}
 
-      - name: Disable rust bridge build
-        run: |
-          sed -i "s/gen_flutter_rust_bridge();/\/\//g" build.rs
-
       - name: Build rustdesk lib
         env:
           ANDROID_NDK_HOME: ${{ steps.setup-ndk.outputs.ndk-path }}
@@ -706,7 +697,6 @@ jobs:
 
       - name: Disable rust bridge build
         run: |
-          sed -i "s/gen_flutter_rust_bridge();/\/\//g" build.rs
           # only build cdylib
           sed -i  "s/\[\"cdylib\", \"staticlib\", \"rlib\"\]/\[\"cdylib\"\]/g" Cargo.toml
 
@@ -877,7 +867,6 @@ jobs:
 
       - name: Disable rust bridge build
         run: |
-          sed -i "s/gen_flutter_rust_bridge();/\/\//g" build.rs
           # only build cdylib
           sed -i  "s/\[\"cdylib\", \"staticlib\", \"rlib\"\]/\[\"cdylib\"\]/g" Cargo.toml
 

build.rs

@@ -78,7 +78,7 @@ fn install_oboe() {
 
 #[cfg(feature = "flutter")]
 fn gen_flutter_rust_bridge() {
-    if std::env::var("IGNORE_FFIGEN").is_ok() {
+    if std::env::var("RUN_FFIGEN").is_ok() {
         return;
     }
     use lib_flutter_rust_bridge_codegen::{

flutter/run.sh

@@ -4,5 +4,5 @@ dart pub global activate ffigen --version 5.0.1
 flutter pub get
 # call `flutter clean` if cargo build fails
 # export LLVM_HOME=/Library/Developer/CommandLineTools/usr/
-cargo build --features "flutter,flutter_texture_render"
+RUN_FFIGEN=Y cargo build --features "flutter,flutter_texture_render"
 flutter run $@