chore: add macOS artifacts to artifact proxy (#2662)

packages/artifact_proxy/README.md

@@ -27,7 +27,12 @@ poison the cache of your main Flutter checkout.
 
 ## Updating config.dart
 
-If run into 404s when fetching artifacts, you may need to update the artifact list in `config.dart`.
+If run into 404s when fetching artifacts, ensure that the expected manifest
+exists at
+https://storage.googleapis.com/download.shorebird.dev/shorebird/$engineRevision/artifacts_manifest.yaml.
+
+If it does, you may need to update the artifact list in `config.dart` and, if
+the artifact is one we're providing, add it in `tool/generate_manifest.sh`
 
 To do so, you will need to determine the artifact URLs. Follow these steps:
 

packages/artifact_proxy/lib/config.dart

@@ -39,14 +39,14 @@ final engineArtifactPatterns = {
   r'flutter_infra_release\/flutter\/(.*)\/darwin-x64\/font-subset\.zip',
   r'flutter_infra_release\/flutter\/(.*)\/darwin-x64\/FlutterMacOS.framework\.zip',
   r'flutter_infra_release\/flutter\/(.*)\/darwin-x64\/artifacts\.zip',
-  r'flutter_infra_release\/flutter\/(.*)\/darwin-x64-release\/gen_snapshot\.zip',
   r'flutter_infra_release\/flutter\/(.*)\/darwin-x64-release\/FlutterMacOS.framework\.zip',
-  r'flutter_infra_release\/flutter\/(.*)\/darwin-x64-release\/artifacts\.zip',
-  r'flutter_infra_release\/flutter\/(.*)\/darwin-x64-release\/framework\.zip',
-  r'flutter_infra_release\/flutter\/(.*)\/darwin-x64-profile\/gen_snapshot\.zip',
   r'flutter_infra_release\/flutter\/(.*)\/darwin-x64-profile\/FlutterMacOS.framework\.zip',
   r'flutter_infra_release\/flutter\/(.*)\/darwin-x64-profile\/artifacts\.zip',
   r'flutter_infra_release\/flutter\/(.*)\/darwin-x64-profile\/framework\.zip',
+  r'flutter_infra_release\/flutter\/(.*)\/darwin-x64-profile\/gen_snapshot\.zip',
+  r'flutter_infra_release\/flutter\/(.*)\/darwin-x64-release\/artifacts\.zip',
+  r'flutter_infra_release\/flutter\/(.*)\/darwin-x64-release\/framework\.zip',
+  r'flutter_infra_release\/flutter\/(.*)\/darwin-x64-release\/gen_snapshot\.zip',
   r'flutter_infra_release\/flutter\/(.*)\/darwin-arm64\/font-subset\.zip',
   r'flutter_infra_release\/flutter\/(.*)\/darwin-arm64\/artifacts\.zip',
   r'flutter_infra_release\/flutter\/(.*)\/dart-sdk-windows-x64\.zip',

packages/artifact_proxy/tool/generate_manifest.sh

@@ -71,3 +71,8 @@ artifact_overrides:
   # Includes unified Flutter.framework for device and simulator (debug)
   - flutter_infra_release/flutter/\$engine/ios-release/artifacts.zip
   - flutter_infra_release/flutter/\$engine/ios-release/Flutter.dSYM.zip
+
+  # macOS release artifacts
+  - flutter_infra_release/flutter/\$engine/darwin-x64-release/artifacts.zip
+  - flutter_infra_release/flutter/\$engine/darwin-x64-release/framework.zip
+  - flutter_infra_release/flutter/\$engine/darwin-x64-release/gen_snapshot.zip