[flutter_plugin_tools] Support YAML exception lists (#4183)

Currently the tool accepts `--custom-analysis` to allow a list of packages for which custom `analysis_options.yaml` are allowed, and `--exclude` to exclude a set of packages when running a command against all, or all changed, packages. This results in these exception lists being embedded into CI configuration files (e.g., .cirrus.yaml) or scripts, which makes them harder to maintain, and harder to re-use in other contexts (local runs, new CI systems).

This adds support for both flags to accept paths to YAML files that contain the lists, so that they can be maintained separately, and with inline comments about the reasons things are on the lists.

Also updates the CI to use this new support, eliminating those lists from `.cirrus.yaml` and `tool_runner.sh`

Fixes flutter/flutter#86799

Author: stuartmorgan-g

.cirrus.yml

@@ -72,7 +72,7 @@ task:
         - cd script/tool
         - dart analyze --fatal-infos
       script:
-        - ./script/tool_runner.sh analyze
+        - ./script/tool_runner.sh analyze --custom-analysis=script/configs/custom_analysis.yaml
     ### Android tasks ###
     - name: build_all_plugins_apk
       env:
@@ -137,22 +137,6 @@ task:
           CHANNEL: "stable"
         MAPS_API_KEY: ENCRYPTED[596a9f6bca436694625ac50851dc5da6b4d34cba8025f7db5bc9465142e8cd44e15f69e3507787753accebfc4910d550]
         GCLOUD_FIREBASE_TESTLAB_KEY: ENCRYPTED[07586610af1fdfc894e5969f70ef2458341b9b7e9c3b7c4225a663b4a48732b7208a4d91c3b7d45305a6b55fa2a37fc4]
-        # Currently missing harness files (https://github.com/flutter/flutter/issues/86749):
-        #   camera/camera
-        #   google_sign_in/google_sign_in
-        #   in_app_purchase/in_app_purchase
-        #   in_app_purchase_android
-        #   quick_actions
-        #   shared_preferences/shared_preferences
-        #   url_launcher/url_launcher
-        #   video_player/video_player
-        #   webview_flutter
-        # Deprecated; no plan to backfill the missing files:
-        #   android_intent,connectivity/connectivity,device_info/device_info,sensors,share,wifi_info_flutter/wifi_info_flutter
-        # No integration tests to run:
-        #   image_picker/image_picker - Native UI is the critical functionality
-        #   espresso - No Dart code, so no integration tests
-        PLUGINS_TO_EXCLUDE_INTEGRATION_TESTS: "camera/camera,google_sign_in/google_sign_in,in_app_purchase/in_app_purchase,in_app_purchase_android,quick_actions,shared_preferences/shared_preferences,url_launcher/url_launcher,video_player/video_player,webview_flutter,android_intent,connectivity/connectivity,device_info/device_info,sensors,share,wifi_info_flutter/wifi_info_flutter,image_picker/image_picker,espresso"
       build_script:
         # Unsetting CIRRUS_CHANGE_MESSAGE and CIRRUS_COMMIT_MESSAGE as they
         # might include non-ASCII characters which makes Gradle crash.
@@ -177,16 +161,13 @@ task:
         - export CIRRUS_COMMIT_MESSAGE=""
         - if [[ -n "$GCLOUD_FIREBASE_TESTLAB_KEY" ]]; then
         -   echo $GCLOUD_FIREBASE_TESTLAB_KEY > ${HOME}/gcloud-service-key.json
-        -   ./script/tool_runner.sh firebase-test-lab --device model=flame,version=29 --device model=starqlteue,version=26 --exclude $PLUGINS_TO_EXCLUDE_INTEGRATION_TESTS
+        -   ./script/tool_runner.sh firebase-test-lab --device model=flame,version=29 --device model=starqlteue,version=26 --exclude=script/configs/exclude_integration_android.yaml
         - else
         -   echo "This user does not have permission to run Firebase Test Lab tests."
         - fi
     ### Web tasks ###
     - name: build-web+drive-examples
       env:
-        # Currently missing; see https://github.com/flutter/flutter/issues/81982
-        # and https://github.com/flutter/flutter/issues/82211
-        PLUGINS_TO_EXCLUDE_INTEGRATION_TESTS: "file_selector,shared_preferences_web"
         matrix:
           CHANNEL: "master"
           CHANNEL: "stable"
@@ -199,7 +180,7 @@ task:
       build_script:
         - ./script/tool_runner.sh build-examples --web
       drive_script:
-        - ./script/tool_runner.sh drive-examples --web --exclude $PLUGINS_TO_EXCLUDE_INTEGRATION_TESTS
+        - ./script/tool_runner.sh drive-examples --web --exclude=script/configs/exclude_integration_web.yaml
 
 # macOS tasks.
 task:
@@ -221,10 +202,6 @@ task:
     - name: build-ipas+drive-examples
       env:
         PATH: $PATH:/usr/local/bin
-        # in_app_purchase_ios is currently missing tests; see https://github.com/flutter/flutter/issues/81695
-        # ios_platform_images is currently missing tests; see https://github.com/flutter/flutter/issues/82208
-        # sensor hangs on CI.
-        PLUGINS_TO_EXCLUDE_INTEGRATION_TESTS: "in_app_purchase_ios,ios_platform_images,sensors"
         matrix:
           PLUGIN_SHARDING: "--shardIndex 0 --shardCount 4"
           PLUGIN_SHARDING: "--shardIndex 1 --shardCount 4"
@@ -247,7 +224,7 @@ task:
         # `drive-examples` contains integration tests, which changes the UI of the application.
         # This UI change sometimes affects `xctest`.
         # So we run `drive-examples` after `native-test`; changing the order will result ci failure.
-        - ./script/tool_runner.sh drive-examples --ios --exclude $PLUGINS_TO_EXCLUDE_INTEGRATION_TESTS
+        - ./script/tool_runner.sh drive-examples --ios --exclude=script/configs/exclude_integration_ios.yaml
     ### macOS desktop tasks ###
     - name: build_all_plugins_macos
       env:
@@ -259,9 +236,6 @@ task:
         - ./script/build_all_plugins_app.sh macos
     - name: build-macos+drive-examples
       env:
-        # conncectivity_macos is deprecated, so is not getting unit test backfill.
-        # package_info is deprecated, so is not getting unit test backfill.
-        PLUGINS_TO_EXCLUDE_MACOS_XCTESTS: "connectivity_macos,package_info"
         matrix:
           CHANNEL: "master"
           CHANNEL: "stable"
@@ -272,6 +246,6 @@ task:
       xcode_analyze_script:
         - ./script/tool_runner.sh xcode-analyze --macos
       native_test_script:
-        - ./script/tool_runner.sh native-test --macos --exclude $PLUGINS_TO_EXCLUDE_MACOS_XCTESTS
+        - ./script/tool_runner.sh native-test --macos --exclude=script/configs/exclude_native_macos.yaml
       drive_script:
         - ./script/tool_runner.sh drive-examples --macos

packages/e2e/analysis_options.yaml

@@ -0,0 +1,8 @@
+This folder contains configuration files that are passed to commands in place
+of plugin lists. They are primarily used by CI to opt specific packages out of
+tests, but can also useful when running multi-plugin tests locally.
+
+**Any entry added to a file in this directory should include a comment**.
+Skipping tests or checks for plugins is usually not something we want to do,
+so should the comment should either include an issue link to the issue tracking
+removing it or—much more rarely—explaining why it is a permanent exclusion.

script/configs/README.md

@@ -0,0 +1,41 @@
+# Plugins that deliberately use their own analysis_options.yaml.
+#
+# This only exists to allow incrementally switching to the newer, stricter
+# analysis_options.yaml based on flutter/flutter, rather than the original
+# rules based on pedantic (now at analysis_options_legacy.yaml).
+#
+# DO NOT add new entries to the list, unless it is to push the legacy rules
+# from a top-level package into more specific packages in order to incrementally
+# migrate a federated plugin.
+#
+# TODO(ecosystem): Remove everything from this list. See:
+# https://github.com/flutter/flutter/issues/76229
+- camera
+- file_selector
+- flutter_plugin_android_lifecycle
+- google_maps_flutter
+- google_sign_in
+- image_picker
+- in_app_purchase
+- integration_test
+- ios_platform_images
+- local_auth
+- plugin_platform_interface
+- quick_actions
+- shared_preferences
+- url_launcher
+- video_player
+- webview_flutter
+
+# These plugins are deprecated in favor of the Community Plus versions, and
+# will be removed from the repo once the critical support window has passed,
+# so are not worth updating.
+- android_alarm_manager
+- android_intent
+- battery
+- connectivity
+- device_info
+- package_info
+- sensors
+- share
+- wifi_info_flutter

script/configs/custom_analysis.yaml

@@ -0,0 +1,22 @@
+# Currently missing harness files: https://github.com/flutter/flutter/issues/86749)
+- camera/camera
+- google_sign_in/google_sign_in
+- in_app_purchase/in_app_purchase
+- in_app_purchase_android
+- quick_actions
+- shared_preferences/shared_preferences
+- url_launcher/url_launcher
+- video_player/video_player
+- webview_flutter
+
+# Deprecated; no plan to backfill the missing files
+- android_intent
+- connectivity/connectivity
+- device_info/device_info
+- sensors
+- share
+- wifi_info_flutter/wifi_info_flutter
+
+# No integration tests to run:
+- image_picker/image_picker
+- espresso

script/configs/exclude_integration_android.yaml

@@ -0,0 +1,6 @@
+# Currently missing: https://github.com/flutter/flutter/issues/81695
+- in_app_purchase_ios
+# Currently missing: https://github.com/flutter/flutter/issues/82208
+- ios_platform_images
+# Hangs on CI. Deprecated, so there is no plan to fix it.
+- sensors

script/configs/exclude_integration_ios.yaml

@@ -0,0 +1,4 @@
+# Currently missing: https://github.com/flutter/flutter/issues/81982
+- shared_preferences_web
+# Currently missing: https://github.com/flutter/flutter/issues/82211
+- file_selector

script/configs/exclude_integration_web.yaml

@@ -0,0 +1,3 @@
+# Deprecated plugins that will not be getting unit test backfill.
+- connectivity_macos
+- package_info

script/configs/exclude_native_macos.yaml

@@ -1,5 +1,9 @@
 ## NEXT
 
+- `--exclude` and `--custom-analysis` now accept paths to YAML files that
+  contain lists of packages to exclude, in addition to just package names,
+  so that exclude lists can be maintained separately from scripts and CI
+  configuration.
 - Added an `xctest` flag to select specific test targets, to allow running only
   unit tests or integration tests.
 - **Breaking change**: Split Xcode analysis out of `xctest` and into a new

script/tool/CHANGELOG.md

@@ -6,6 +6,7 @@ import 'dart:async';
 
 import 'package:file/file.dart';
 import 'package:platform/platform.dart';
+import 'package:yaml/yaml.dart';
 
 import 'common/core.dart';
 import 'common/package_looping_command.dart';
@@ -23,7 +24,10 @@ class AnalyzeCommand extends PackageLoopingCommand {
   }) : super(packagesDir, processRunner: processRunner, platform: platform) {
     argParser.addMultiOption(_customAnalysisFlag,
         help:
-            'Directories (comma separated) that are allowed to have their own analysis options.',
+            'Directories (comma separated) that are allowed to have their own '
+            'analysis options.\n\n'
+            'Alternately, a list of one or more YAML files that contain a list '
+            'of allowed directories.',
         defaultsTo: <String>[]);
     argParser.addOption(_analysisSdk,
         valueHelp: 'dart-sdk',
@@ -37,6 +41,8 @@ class AnalyzeCommand extends PackageLoopingCommand {
 
   late String _dartBinaryPath;
 
+  Set<String> _allowedCustomAnalysisDirectories = const <String>{};
+
   @override
   final String name = 'analyze';
 
@@ -56,7 +62,7 @@ class AnalyzeCommand extends PackageLoopingCommand {
         continue;
       }
 
-      final bool allowed = (getStringListArg(_customAnalysisFlag)).any(
+      final bool allowed = _allowedCustomAnalysisDirectories.any(
           (String directory) =>
               directory.isNotEmpty &&
               path.isWithin(
@@ -107,6 +113,17 @@ class AnalyzeCommand extends PackageLoopingCommand {
       throw ToolExit(_exitPackagesGetFailed);
     }
 
+    _allowedCustomAnalysisDirectories =
+        getStringListArg(_customAnalysisFlag).expand<String>((String item) {
+      if (item.endsWith('.yaml')) {
+        final File file = packagesDir.fileSystem.file(item);
+        return (loadYaml(file.readAsStringSync()) as YamlList)
+            .toList()
+            .cast<String>();
+      }
+      return <String>[item];
+    }).toSet();
+
     // Use the Dart SDK override if one was passed in.
     final String? dartSdk = argResults![_analysisSdk] as String?;
     _dartBinaryPath =