Add diagnostics for the still-failing Nix lipo permission issue

.github/workflows/ios.yml

@@ -28,9 +28,17 @@ jobs:
             flutter pub get
             dart scripts/generate.dart
             flutter pub run build_runner build
-            # Nix-provided Flutter'"'"'s bundled frameworks are read-only, which
-            # breaks lipo when Flutter thins them into build/ (NixOS/nixpkgs#405066).
-            find "$(dirname "$(dirname "$(readlink -f "$(command -v flutter)")")")" -type d -iname "*.framework" -exec chmod -R u+w {} + 2>/dev/null || true
+
+            # Diagnostics for NixOS/nixpkgs#405066 (Flutter'"'"'s bundled
+            # frameworks are read-only, which breaks lipo when Flutter thins
+            # them into build/). Remove once this is confirmed fixed.
+            echo "lipo resolves to: $(command -v lipo)"
+            FLUTTER_ROOT="$(dirname "$(dirname "$(readlink -f "$(command -v flutter)")")")"
+            echo "Resolved Flutter root: $FLUTTER_ROOT"
+            find "$FLUTTER_ROOT" -type d -iname "*.framework" -print
+            find "$FLUTTER_ROOT" -type d -iname "*.framework" -exec chmod -R u+w {} + 2>&1 || true
+            find "$FLUTTER_ROOT" -type d -iname "*.framework" -exec ls -ld {} \;
+
             flutter build ios --release --no-codesign
           '
 

.github/workflows/macos.yml

@@ -28,9 +28,17 @@ jobs:
             flutter pub get
             dart scripts/generate.dart
             flutter pub run build_runner build
-            # Nix-provided Flutter'"'"'s bundled frameworks are read-only, which
-            # breaks lipo when Flutter thins them into build/ (NixOS/nixpkgs#405066).
-            find "$(dirname "$(dirname "$(readlink -f "$(command -v flutter)")")")" -type d -iname "*.framework" -exec chmod -R u+w {} + 2>/dev/null || true
+
+            # Diagnostics for NixOS/nixpkgs#405066 (Flutter'"'"'s bundled
+            # frameworks are read-only, which breaks lipo when Flutter thins
+            # them into build/). Remove once this is confirmed fixed.
+            echo "lipo resolves to: $(command -v lipo)"
+            FLUTTER_ROOT="$(dirname "$(dirname "$(readlink -f "$(command -v flutter)")")")"
+            echo "Resolved Flutter root: $FLUTTER_ROOT"
+            find "$FLUTTER_ROOT" -type d -iname "*.framework" -print
+            find "$FLUTTER_ROOT" -type d -iname "*.framework" -exec chmod -R u+w {} + 2>&1 || true
+            find "$FLUTTER_ROOT" -type d -iname "*.framework" -exec ls -ld {} \;
+
             flutter build macos --release
           '
 

ios/scripts/lipo

@@ -3,11 +3,13 @@
 # stay read-only, so lipo can't write its temporary output file when Flutter
 # thins them during the build. Make the framework writable before delegating
 # to the real lipo.
+echo "lipo shim invoked with: $*" >&2
 for arg in "$@"; do
   case "$arg" in
     */*.framework/*)
       fw_dir="${arg%.framework/*}.framework"
-      chmod -R +w "$fw_dir" 2>/dev/null
+      echo "lipo shim: chmod -R +w $fw_dir" >&2
+      chmod -R +w "$fw_dir"
       ;;
   esac
 done

macos/scripts/lipo

@@ -3,11 +3,13 @@
 # stay read-only, so lipo can't write its temporary output file when Flutter
 # thins FlutterMacOS.framework during the build. Make the framework writable
 # before delegating to the real lipo.
+echo "lipo shim invoked with: $*" >&2
 for arg in "$@"; do
   case "$arg" in
     */*.framework/*)
       fw_dir="${arg%.framework/*}.framework"
-      chmod -R +w "$fw_dir" 2>/dev/null
+      echo "lipo shim: chmod -R +w $fw_dir" >&2
+      chmod -R +w "$fw_dir"
       ;;
   esac
 done