nit: Add a short comment explain path dependencies

.ci/dev/README.md

@@ -0,0 +1,19 @@
+This directory contains resources that the Flutter team uses during 
+the development of plugins.
+
+## Luci builder file
+`try_builders.json` contains the supported luci try builders 
+for plugins. It follows format:
+```json
+{
+    "builders":[
+        {
+            "name":"yyy",
+            "repo":"plugins",
+            "enabled":true
+        }
+    ]
+}
+```
+This file will be mainly used in [`flutter/cocoon`](https://github.com/flutter/cocoon) 
+to trigger/update pre-submit luci tasks.

.ci/dev/try_builders.json

@@ -0,0 +1,9 @@
+{
+   "builders":[
+      {
+         "name":"Windows Plugins",
+         "repo":"plugins",
+         "enabled":true
+      }
+   ]
+}

.cirrus.yml

@@ -14,7 +14,9 @@ task:
     - flutter channel master
     - flutter upgrade
     - git fetch origin master
-  activate_script: pub global activate flutter_plugin_tools
+  submodules_script:
+    - git submodule init
+    - git submodule update
   matrix:
     - name: publishable
       script:
@@ -39,8 +41,16 @@ task:
         - flutter channel $CHANNEL
         - ./script/incremental_build.sh test
     - name: analyze
+      env:
+        matrix:
+          CHANNEL: "master"
+          CHANNEL: "stable"
       script: ./script/incremental_build.sh analyze
     - name: build_all_plugins_apk
+      env:
+        matrix:
+          CHANNEL: "master"
+          CHANNEL: "stable"
       script:
         # TODO(jackson): Allow web plugins once supported on stable
         # https://github.com/flutter/flutter/issues/42864
@@ -59,7 +69,7 @@ task:
         - ./chromedriver/chromedriver --port=4444 &
       test_script:
         - cd $INTEGRATION_TEST_PATH/example/
-        - flutter drive -v --target=test_driver/example_integration.dart -d web-server --release --browser-name=chrome
+        - flutter drive -v --driver=test_driver/integration_test.dart --target=integration_test/example_test.dart -d web-server --release --browser-name=chrome
     - name: build-apks+java-test+firebase-test-lab
       env:
         matrix:
@@ -114,7 +124,9 @@ task:
     - flutter channel master
     - flutter upgrade
     - git fetch origin master
-  activate_script: pub global activate flutter_plugin_tools
+  submodules_script:
+    - git submodule init
+    - git submodule update
   matrix:
     - name: build-linux+drive-examples
       install_script:
@@ -126,43 +138,41 @@ task:
         - xvfb-run ./script/incremental_build.sh drive-examples --linux
 
 task:
+  # Xcode 12 task
   # don't run on release tags since it creates O(n^2) tasks where n is the number of plugins
   only_if: $CIRRUS_TAG == ''
   use_compute_credits: $CIRRUS_USER_COLLABORATOR == 'true'
   osx_instance:
-    image: catalina-xcode-11.3.1-flutter
+    image: big-sur-xcode-12.3
   upgrade_script:
+    - sudo gem install cocoapods
     - flutter channel stable
     - flutter upgrade
     - flutter channel master
     - flutter upgrade
     - git fetch origin master
-  activate_script: pub global activate flutter_plugin_tools
+  submodules_script:
+    - git submodule init
+    - git submodule update
   create_simulator_script:
     - xcrun simctl list
-    - xcrun simctl create Flutter-iPhone com.apple.CoreSimulator.SimDeviceType.iPhone-X com.apple.CoreSimulator.SimRuntime.iOS-13-3 | xargs xcrun simctl boot
+    - xcrun simctl create Flutter-iPhone com.apple.CoreSimulator.SimDeviceType.iPhone-11 com.apple.CoreSimulator.SimRuntime.iOS-14-3 | xargs xcrun simctl boot
   matrix:
     - name: build_all_plugins_ipa
+      env:
+        matrix:
+          CHANNEL: "master"
+          CHANNEL: "stable"
       script:
         # TODO(jackson): Allow web plugins once supported on stable
         # https://github.com/flutter/flutter/issues/42864
         - if [[ "$CHANNEL" -eq "stable" ]]; then find . | grep _web$ | xargs rm -rf; fi
         - flutter channel $CHANNEL
         - ./script/build_all_plugins_app.sh ios --no-codesign
-    - name: lint_darwin_plugins
-      env:
-        matrix:
-          PLUGIN_SHARDING: "--shardIndex 0 --shardCount 2"
-          PLUGIN_SHARDING: "--shardIndex 1 --shardCount 2"
-      script:
-        # TODO(jmagman): Lint macOS podspecs but skip any that fail library validation.
-        - find . -name "*.podspec" | xargs grep -l "osx" | xargs rm
-        # Skip the dummy podspecs used to placate the tool.
-        - find . -name "*_web*.podspec" -o -name "*_mac*.podspec" | xargs rm
-        - ./script/incremental_build.sh podspecs
     - name: build-ipas+drive-examples
       env:
         PATH: $PATH:/usr/local/bin
+        PLUGINS_TO_SKIP_XCTESTS: "battery/battery,camera/camera,connectivity/connectivity,device_info/device_info,espresso,google_maps_flutter/google_maps_flutter,google_sign_in/google_sign_in,in_app_purchase,integration_test,ios_platform_images,local_auth,package_info,path_provider/path_provider,quick_actions,sensors,shared_preferences/shared_preferences,url_launcher/url_launcher,video_player/video_player,webview_flutter,wifi_info_flutter/wifi_info_flutter"
         matrix:
           PLUGIN_SHARDING: "--shardIndex 0 --shardCount 4"
           PLUGIN_SHARDING: "--shardIndex 1 --shardCount 4"
@@ -177,21 +187,61 @@ task:
         # https://github.com/flutter/flutter/issues/42864
         - if [[ "$CHANNEL" -eq "stable" ]]; then find . | grep _web$ | xargs rm -rf; fi
         - flutter channel $CHANNEL
+        - flutter upgrade
         - ./script/incremental_build.sh build-examples --ipa
         - ./script/incremental_build.sh drive-examples
+        - ./script/incremental_build.sh xctest --target RunnerUITests --skip $PLUGINS_TO_SKIP_XCTESTS --ios-destination "platform=iOS Simulator,name=iPhone 11,OS=14.3"
+
 task:
+  # Xcode 11 task
+  # TODO(cyanglaz): merge Xcode 11 task to Xcode 12 task when all the matrix can be run in Xcode 12.
   # don't run on release tags since it creates O(n^2) tasks where n is the number of plugins
   only_if: $CIRRUS_TAG == ''
   use_compute_credits: $CIRRUS_USER_COLLABORATOR == 'true'
   osx_instance:
     image: catalina-xcode-11.3.1-flutter
+  upgrade_script:
+    - sudo gem install cocoapods
+    - flutter channel stable
+    - flutter upgrade
+    - flutter channel master
+    - flutter upgrade
+    - git fetch origin master
+  submodules_script:
+    - git submodule init
+    - git submodule update
+  create_simulator_script:
+    - xcrun simctl list
+    - xcrun simctl create Flutter-iPhone com.apple.CoreSimulator.SimDeviceType.iPhone-X com.apple.CoreSimulator.SimRuntime.iOS-13-3 | xargs xcrun simctl boot
+  matrix:
+    - name: lint_darwin_plugins
+      env:
+        matrix:
+          PLUGIN_SHARDING: "--shardIndex 0 --shardCount 2"
+          PLUGIN_SHARDING: "--shardIndex 1 --shardCount 2"
+      script:
+        # TODO(jmagman): Lint macOS podspecs but skip any that fail library validation.
+        - find . -name "*.podspec" | xargs grep -l "osx" | xargs rm
+        # Skip the dummy podspecs used to placate the tool.
+        - find . -name "*_web*.podspec" -o -name "*_mac*.podspec" | xargs rm
+        - ./script/incremental_build.sh podspecs
+
+task:
+  # don't run on release tags since it creates O(n^2) tasks where n is the number of plugins
+  only_if: $CIRRUS_TAG == ''
+  use_compute_credits: $CIRRUS_USER_COLLABORATOR == 'true'
+  osx_instance:
+    image: big-sur-xcode-12.3
   setup_script:
     - flutter config --enable-macos-desktop
   upgrade_script:
+    - sudo gem install cocoapods
     - flutter channel master
     - flutter upgrade
     - git fetch origin master
-  activate_script: pub global activate flutter_plugin_tools
+  submodules_script:
+    - git submodule init
+    - git submodule update
   matrix:
     - name: build_all_plugins_app
       script:

.clang-format

@@ -0,0 +1 @@
+BasedOnStyle: Google

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,37 +1,32 @@
-## Description
+*Replace this paragraph with a description of what this PR is changing or adding, and why. Consider including before/after screenshots.*
 
-*Replace this paragraph with a description of what this PR is doing. If you're modifying existing behavior, describe the existing behavior, how this PR is changing it, and what motivated the change.*
+*List which issues are fixed by this PR. You must list at least one issue.*
 
-## Related Issues
+*If you had to change anything in the [flutter/tests] repo, include a link to the migration guide as per the [breaking change policy].*
 
-*Replace this paragraph with a list of issues related to this PR from the [issue database](https://github.com/flutter/flutter/issues). Indicate, which of these issues are resolved or fixed by this PR. Note that you'll have to prefix the issue numbers with flutter/flutter#.*
-
-## Checklist
-
-Before you create this PR confirm that it meets all requirements listed below by checking the relevant checkboxes (`[x]`). This will ensure a smooth and quick review process.
+## Pre-launch Checklist
 
+- [ ] The title of the PR starts with the name of the plugin surrounded by square brackets, e.g. `[shared_preferences]`
 - [ ] I read the [Contributor Guide] and followed the process outlined there for submitting PRs.
-- [ ] My PR includes unit or integration tests for *all* changed/updated/fixed behaviors (See [Contributor Guide]).
-- [ ] All existing and new tests are passing.
-- [ ] I updated/added relevant documentation (doc comments with `///`).
-- [ ] The analyzer (`flutter analyze`) does not report any problems on my PR.
-- [ ] I read and followed the [Flutter Style Guide].
-- [ ] The title of the PR starts with the name of the plugin surrounded by square brackets, e.g. [shared_preferences]
+- [ ] I read the [Tree Hygiene] wiki page, which explains my responsibilities.
+- [ ] I read and followed the [Flutter Style Guide] and the [C++, Objective-C, Java style guides].
+- [ ] I listed at least one issue that this PR fixes in the description above.
+- [ ] I added new tests to check the change I am making or feature I am adding, or Hixie said the PR is test exempt.
 - [ ] I updated pubspec.yaml with an appropriate new version according to the [pub versioning philosophy].
 - [ ] I updated CHANGELOG.md to add a description of the change.
+- [ ] I updated/added relevant documentation (doc comments with `///`).
 - [ ] I signed the [CLA].
-- [ ] I am willing to follow-up on review comments in a timely manner.
-
-## Breaking Change
-
-Does your PR require plugin users to manually update their apps to accommodate your change?
+- [ ] All existing and new tests are passing.
 
-- [ ] Yes, this is a breaking change (please indicate a breaking change in CHANGELOG.md and increment major revision).
-- [ ] No, this is *not* a breaking change.
+If you need help, consider asking for advice on the #hackers-new channel on [Discord].
 
 <!-- Links -->
-[issue database]: https://github.com/flutter/flutter/issues
-[Contributor Guide]: https://github.com/flutter/plugins/blob/master/CONTRIBUTING.md
+[Contributor Guide]: https://github.com/flutter/flutter/wiki/Tree-hygiene#overview
+[Tree Hygiene]: https://github.com/flutter/flutter/wiki/Tree-hygiene
 [Flutter Style Guide]: https://github.com/flutter/flutter/wiki/Style-guide-for-Flutter-repo
-[pub versioning philosophy]: https://www.dartlang.org/tools/pub/versioning
+[C++, Objective-C, Java style guides]: https://github.com/flutter/engine/blob/master/CONTRIBUTING.md#style
 [CLA]: https://cla.developers.google.com/
+[flutter/tests]: https://github.com/flutter/tests
+[breaking change policy]: https://github.com/flutter/flutter/wiki/Tree-hygiene#handling-breaking-changes
+[Discord]: https://github.com/flutter/flutter/wiki/Chat
+[pub versioning philosophy]: https://dart.dev/tools/pub/versioning

.github/labeler.yml

@@ -0,0 +1,110 @@
+'p: android_alarm_manager':
+  - packages/android_alarm_manager/**/*
+
+'p: android_intent':
+  - packages/android_intent/**/*
+
+'p: battery':
+  - packages/battery/**/*
+
+'p: camera':
+  - packages/camera/**/*
+
+'p: connectivity':
+  - packages/connectivity/**/*
+
+'p: cross_file':
+  - packages/cross_file/**/*
+
+'p: device_info':
+  - packages/device_info/**/*
+
+'p: e2e':
+  - packages/e2e/**/*
+
+'p: espresso':
+  - packages/espresso/**/*
+
+'p: file_selector':
+  - packages/file_selector/**/*
+
+'p: flutter_plugin_android_lifecycle':
+  - packages/flutter_plugin_android_lifecycle/**/*
+
+'p: google_maps_flutter':
+  - packages/google_maps_flutter/**/*
+
+'p: google_sign_in':
+  - packages/google_sign_in/**/*
+
+'p: image_picker':
+  - packages/image_picker/**/*
+
+'p: in_app_purchase':
+  - packages/in_app_purchase/**/*
+
+'p: integration_test':
+  - packages/integration_test/**/*
+
+'p: ios_platform_images':
+  - packages/ios_platform_images/**/*
+
+'p: local_auth':
+  - packages/local_auth/**/*
+
+'p: package_info':
+  - packages/package_info/**/*
+
+'p: path_provider':
+  - packages/path_provider/**/*
+
+'p: plugin_platform_interface':
+  - packages/plugin_platform_interface/**/*
+
+'p: quick_actions':
+  - packages/quick_actions/**/*
+
+'p: sensors':
+  - packages/sensors/**/*
+
+'p: share':
+  - packages/share/**/*
+
+'p: shared_preferences':
+  - packages/shared_preferences/**/*
+
+'p: url_launcher':
+  - packages/url_launcher/**/*
+
+'p: video_player':
+  - packages/video_player/**/*
+
+'p: webview_flutter':
+  - packages/webview_flutter/**/*
+
+'p: wifi_info_flutter':
+  - packages/wifi_info_flutter/**/*
+
+'platform-android':
+  - packages/*/*_android/**/*
+  - packages/**/android/**/*
+
+'platform-ios':
+  - packages/*/*_ios/**/*
+  - packages/**/ios/**/*
+
+'platform-linux':
+  - packages/*/*_linux/**/*
+  - packages/**/linux/**/*
+
+'platform-macos':
+  - packages/*/*_macos/**/*
+  - packages/**/macos/**/*
+
+'platform-web':
+  - packages/*/*_web/**/*
+  - packages/**/web/**/*
+
+'platform-windows':
+  - packages/*/*_windows/**/*
+  - packages/**/windows/**/*

.github/post_merge_labeler.yml

@@ -0,0 +1,2 @@
+'needs-publishing':
+  - packages/*/**