WIP Reduce CI testing time, add caching

.cirrus.yml

@@ -1,50 +1,73 @@
+flutter_skip_web_template: &FLUTTER_SKIP_WEB_TEMPLATE
+  remove_web_plugins_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
+
 task:
   use_compute_credits: $CIRRUS_USER_COLLABORATOR == 'true' && $CIRRUS_PR == ''
   container:
     dockerfile: .ci/Dockerfile
     cpu: 8
     memory: 16G
+  environment:
+    PATH: $PATH:$HOME/.pub-cache/bin
+    CHANNEL: "master" # Default to flutter master, tests can override.
+  channel_script:
+    - flutter channel $CHANNEL
+    - rm -rf $FLUTTER_HOME/bin/cache/*
+  # flutter_pkg_cache:
+  #   folder: $FLUTTER_HOME/bin/cache/pkg
+  #   fingerprint_script: echo $OS; cat ${FLUTTER_HOME}/bin/internal/*.version
+  # flutter_artifacts_cache:
+  #   folder: $FLUTTER_HOME/bin/cache/artifacts
+  #   fingerprint_script: echo $OS; cat ${FLUTTER_HOME}/bin/internal/*.version
+  # dart_cache:
+  #   folder: $FLUTTER_HOME/bin/cache/dart-sdk
+  #   fingerprint_script: echo $OS; cat ${FLUTTER_HOME}/bin/internal/*.version
   upgrade_script:
-    - flutter channel stable
-    - flutter upgrade
-    - flutter channel master
     - flutter upgrade
     - git fetch origin master
   activate_script: pub global activate flutter_plugin_tools
   matrix:
     - name: publishable
+      environment:
+         CHANNEL: "stable"
       script:
-        - flutter channel stable
         - ./script/check_publish.sh
     - name: format
       install_script:
         - wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add -
         - sudo apt-add-repository "deb http://apt.llvm.org/xenial/ llvm-toolchain-xenial-7 main"
         - sudo apt-get update
         - sudo apt-get install -y --allow-unauthenticated clang-format-7
+        - dpkg -L clang-format-7
       format_script: ./script/incremental_build.sh format --travis --clang-format=clang-format-7
     - name: test
-      env:
+      << : *FLUTTER_SKIP_WEB_TEMPLATE
+      environment:
         matrix:
           CHANNEL: "master"
           CHANNEL: "stable"
       test_script:
-        # TODO(jackson): Allow web plugins once supported on stable
-        # https://github.com/flutter/flutter/issues/42864
-        - if [[ "$CHANNEL" -eq "stable" ]]; then find . | grep _web$ | xargs rm -rf; fi
-        - flutter channel $CHANNEL
         - ./script/incremental_build.sh test
+      # depends_on:
+      #   - publishable # Upload the stable cache first.
+      #   - format # Upload the master cache first.
     - name: analyze
-      script: ./script/incremental_build.sh analyze
+      script:
+        - ./script/incremental_build.sh analyze
+      # depends_on:
+      #   - format # Upload the master cache first.
     - name: build_all_plugins_apk
+      << : *FLUTTER_SKIP_WEB_TEMPLATE
       script:
-        # TODO(jackson): Allow web plugins once supported on stable
-        # https://github.com/flutter/flutter/issues/42864
-        - if [[ "$CHANNEL" -eq "stable" ]]; then find . | grep _web$ | xargs rm -rf; fi
-        - flutter channel $CHANNEL
         - ./script/build_all_plugins_app.sh apk
+      # depends_on:
+      #   - format # Upload the master cache first.
     - name: build-apks+java-test+firebase-test-lab
-      env:
+      << : *FLUTTER_SKIP_WEB_TEMPLATE
+      environment:
         matrix:
           PLUGIN_SHARDING: "--shardIndex 0 --shardCount 2"
           PLUGIN_SHARDING: "--shardIndex 1 --shardCount 2"
@@ -54,10 +77,6 @@ task:
         MAPS_API_KEY: ENCRYPTED[596a9f6bca436694625ac50851dc5da6b4d34cba8025f7db5bc9465142e8cd44e15f69e3507787753accebfc4910d550]
         GCLOUD_FIREBASE_TESTLAB_KEY: ENCRYPTED[07586610af1fdfc894e5969f70ef2458341b9b7e9c3b7c4225a663b4a48732b7208a4d91c3b7d45305a6b55fa2a37fc4]
       script:
-        # TODO(jackson): Allow web plugins once supported on stable
-        # https://github.com/flutter/flutter/issues/42864
-        - if [[ "$CHANNEL" -eq "stable" ]]; then find . | grep _web$ | xargs rm -rf; fi
-        - flutter channel $CHANNEL
         # Unsetting CIRRUS_CHANGE_MESSAGE and CIRRUS_COMMIT_MESSAGE as they
         # might include non-ASCII characters which makes Gradle crash.
         # See: https://github.com/flutter/flutter/issues/24935
@@ -78,36 +97,49 @@ task:
         - fi
         - export CIRRUS_CHANGE_MESSAGE=`cat /tmp/cirrus_change_message.txt`
         - export CIRRUS_COMMIT_MESSAGE=`cat /tmp/cirrus_commit_message.txt`
+      # depends_on:
+      #   - publishable
+      #   - format
 
 task:
   use_compute_credits: $CIRRUS_USER_COLLABORATOR == 'true'
   osx_instance:
-    image: mojave-xcode-11.2.1-flutter
-  setup_script:
-    - pod repo update
+    image: mojave-flutter
+  environment:
+    COCOAPODS_DISABLE_STATS: true
+    PATH: $PATH:/usr/local/bin:$HOME/.pub-cache/bin
+    CHANNEL: "master" # Default to flutter master, tests can override.
+  channel_script:
+    - flutter channel $CHANNEL
+    - rm -rf $FLUTTER_HOME/bin/cache/*
+  # flutter_pkg_cache:
+  #   folder: $FLUTTER_HOME/bin/cache/pkg
+  #   fingerprint_script: echo $OS; cat ${FLUTTER_HOME}/bin/internal/*.version
+  # flutter_artifacts_cache:
+  #   folder: $FLUTTER_HOME/bin/cache/artifacts
+  #   fingerprint_script: echo $OS; cat ${FLUTTER_HOME}/bin/internal/*.version
+  # dart_cache:
+  #   folder: $FLUTTER_HOME/bin/cache/dart-sdk
+  #   fingerprint_script: echo $OS; cat ${FLUTTER_HOME}/bin/cache/dart-sdk/revision
   upgrade_script:
-    - flutter channel stable
-    - flutter upgrade
-    - flutter channel master
     - flutter upgrade
     - git fetch origin master
   activate_script: pub global activate flutter_plugin_tools
+  << : *FLUTTER_SKIP_WEB_TEMPLATE
   create_simulator_script:
     - xcrun simctl list
     - xcrun simctl create Flutter-iPhone com.apple.CoreSimulator.SimDeviceType.iPhone-X com.apple.CoreSimulator.SimRuntime.iOS-13-2 | xargs xcrun simctl boot
   matrix:
     - name: build_all_plugins_ipa
       script:
-        # TODO(jackson): Allow web plugins once supported on stable
-        # https://github.com/flutter/flutter/issues/42864
-        - if [[ "$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
-      script: ./script/lint_darwin_plugins.sh
+      environment:
+         CHANNEL: "stable"
+      script:
+        - ./script/lint_darwin_plugins.sh
     - name: build-ipas+drive-examples
-      env:
-        PATH: $PATH:/usr/local/bin
+      environment:
         matrix:
           PLUGIN_SHARDING: "--shardIndex 0 --shardCount 4"
           PLUGIN_SHARDING: "--shardIndex 1 --shardCount 4"
@@ -117,10 +149,9 @@ task:
           CHANNEL: "master"
           CHANNEL: "stable"
         SIMCTL_CHILD_MAPS_API_KEY: ENCRYPTED[596a9f6bca436694625ac50851dc5da6b4d34cba8025f7db5bc9465142e8cd44e15f69e3507787753accebfc4910d550]
-      build_script:
-        # TODO(jackson): Allow web plugins once supported on stable
-        # https://github.com/flutter/flutter/issues/42864
-        - if [[ "$CHANNEL" -eq "stable" ]]; then find . | grep _web$ | xargs rm -rf; fi
-        - flutter channel $CHANNEL
+      script:
         - ./script/incremental_build.sh build-examples --ipa
         - ./script/incremental_build.sh drive-examples
+      # depends_on:
+      #   - build_all_plugins_ipa # Upload the master cache first.
+      #   - lint_darwin_plugins # Upload the stable cache first.

analysis_options.yaml

@@ -3,7 +3,7 @@ analyzer:
   exclude:
     # Ignore generated files
     - '**/*.g.dart'
-    - 'lib/src/generated/*.dart'
+    - '**/lib/src/generated/*.dart'
 linter:
   rules:
     - public_member_api_docs