Improved build time by avoiding 'brew update', caching, and using pre-compiled flutter (brianegan#103)

* Skipped 'brew update'

* Installed pre-compiled flutter for mac and linux

* Added caching of .pub-cache and .gradle

* Removed old dependency_overrides

Author: mmcc007

.travis.yml

@@ -7,14 +7,23 @@ jobs:
       env: All unit and widget tests
       before_script:
         - sudo apt-get install -y --no-install-recommends lib32stdc++6 libstdc++6 > /dev/null
-        - git clone https://github.com/flutter/flutter.git -b stable
+
+#        - git clone https://github.com/flutter/flutter.git -b stable
+#        - flutter precache
+
+        # install pre-compiled flutter
+        - FLUTTER_CHANNEL=stable
+        - FLUTTER_VERSION=1.0.0-${FLUTTER_CHANNEL}
+        - wget --quiet --output-document=flutter.tar.xz https://storage.googleapis.com/flutter_infra/releases/${FLUTTER_CHANNEL}/linux/flutter_linux_v${FLUTTER_VERSION}.tar.xz && tar xf flutter.tar.xz > /dev/null && rm flutter.tar.xz
         - export PATH="$PATH":"$HOME/.pub-cache/bin"
-        - export PATH=`pwd`/flutter/bin:`pwd`/flutter/bin/cache/dart-sdk/bin:$PATH
-        - flutter precache
+        - export PATH=$PWD/flutter/bin:$PWD/flutter/bin/cache/dart-sdk/bin:$PATH
         - flutter doctor -v
         - pub global activate coverage
       script: ./scripts/runTests.sh
       after_success: bash <(curl -s https://codecov.io/bash) -f lcov.info
+      cache:
+        directories:
+          - $HOME/.pub-cache
 
     - &integration-test-staging
       stage: Integration Testing
@@ -51,17 +60,28 @@ jobs:
         - sdkmanager --list | head -15
         - echo no | avdmanager create avd --force -n test -k "system-images;android-$EMULATOR_API_LEVEL;$ANDROID_ABI"
         - $ANDROID_HOME/emulator/emulator -avd test -no-audio -no-window -gpu swiftshader &
-        # install flutter
-        - git clone https://github.com/flutter/flutter.git -b stable
+
+#        - git clone https://github.com/flutter/flutter.git -b stable
+#        - flutter precache
+
+        # install pre-compiled flutter
+        - FLUTTER_CHANNEL=stable
+        - FLUTTER_VERSION=1.0.0-${FLUTTER_CHANNEL}
+        - wget --quiet --output-document=flutter.tar.xz https://storage.googleapis.com/flutter_infra/releases/${FLUTTER_CHANNEL}/linux/flutter_linux_v${FLUTTER_VERSION}.tar.xz && tar xf flutter.tar.xz > /dev/null && rm flutter.tar.xz
         - export PATH="$PATH":"$HOME/.pub-cache/bin"
-        - export PATH=`pwd`/flutter/bin:`pwd`/flutter/bin/cache/dart-sdk/bin:$PATH
-        - flutter precache
+        - export PATH=$PWD/flutter/bin:$PWD/flutter/bin/cache/dart-sdk/bin:$PATH
         - flutter doctor -v
+
         # Wait for emulator to finish startup.
         - ./scripts/android-wait-for-emulator.sh
         - adb shell input keyevent 82
         - flutter devices
       script: travis_retry ./scripts/ci.sh ./example/bloc_flutter
+      cache:
+        directories:
+          - $HOME/.pub-cache
+          - $HOME/.gradle
+
     - <<: *integration-test-staging
       os: osx
       # use oldest flutter supported version of xcode
@@ -70,19 +90,31 @@ jobs:
       # Run integration tests on ios
       before_install: &before_install_osx
         - open /Applications/Xcode.app/Contents/Developer/Applications/Simulator.app
-        - brew update
+        # skip homebrew update
+        - export HOMEBREW_NO_AUTO_UPDATE=1
+#        - brew update
         - brew install libimobiledevice
         - brew install ideviceinstaller
         - brew install ios-deploy
         - brew install cocoapods || echo 'ignore exit(1)'
         - brew link --overwrite cocoapods
-        - git clone https://github.com/flutter/flutter.git -b stable
+
+#        - git clone https://github.com/flutter/flutter.git -b stable
+#        - flutter precache
+
+        # install pre-compiled flutter
+        - FLUTTER_CHANNEL=stable
+        - FLUTTER_VERSION=1.0.0-${FLUTTER_CHANNEL}
+        - wget --quiet --output-document=flutter.zip https://storage.googleapis.com/flutter_infra/releases/${FLUTTER_CHANNEL}/macos/flutter_macos_v${FLUTTER_VERSION}.zip && unzip -qq flutter.zip > /dev/null && rm flutter.zip
         - export PATH="$PATH":"$HOME/.pub-cache/bin"
-        - export PATH=`pwd`/flutter/bin:`pwd`/flutter/bin/cache/dart-sdk/bin:$PATH
-        - flutter precache
+        - export PATH=$PWD/flutter/bin:$PWD/flutter/bin/cache/dart-sdk/bin:$PATH
         - flutter doctor -v
         - flutter devices
       script: travis_retry ./scripts/ci.sh ./example/bloc_flutter
+      cache:
+        directories:
+          - $HOME/.pub-cache
+
     - <<: *integration-test-staging
       os: linux
       env: built_redux_android

example/built_redux/pubspec.yaml

@@ -28,9 +28,6 @@ dev_dependencies:
   integration_tests:
     path: ../integration_tests
 
-dependency_overrides:
-  analyzer: ^0.34.1
-
 # For information on the generic Dart part of this file, see the
 # following page: https://www.dartlang.org/tools/pub/pubspec
 

example/mvu/pubspec.yaml

@@ -30,9 +30,6 @@ dev_dependencies:
     path: ../integration_tests
   test: ^1.5.1
 
-dependency_overrides:
-  analyzer: ^0.33.0
-
 # For information on the generic Dart part of this file, see the
 # following page: https://www.dartlang.org/tools/pub/pubspec
 

example/redurx/pubspec.yaml

@@ -29,8 +29,5 @@ dev_dependencies:
   integration_tests:
     path: ../integration_tests
 
-dependency_overrides:
-  analyzer: ^0.33.0
-
 flutter:
   uses-material-design: true