initial action complete (#2)

* Adds Github Action for CI

Co-authored-by: Eric Windmill <[email protected]>

Author: ericwindmill

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,7 +1,12 @@
-_Description of what this PR is changing or adding, and why:_
+_Description of what this PR is changing or adding:_
 
 _Issues fixed by this PR (if any):_
 
+## Risk Level
+- [ ] No risk
+- [ ] Somewhat Risky
+- [ ] High risk
+
 ## Pre-submit checklist
 - [ ] This PR follows the [Google Developer Documentation Style Guidelines](https://developers.google.com/style)
 - [ ] This PR uses [semantic line breaks](https://github.com/dart-lang/site-shared/blob/main/doc/writing-for-dart-and-flutter-websites.md#semantic-line-breaks)

.github/workflows/ci.yml

@@ -0,0 +1,57 @@
+name: Run CI
+
+on:
+  workflow_dispatch:
+  pull_request:
+    types: [opened, reopened, synchronize]
+    paths:
+    - "packages/**"
+    - ".github/workflows"
+  push:
+    paths-ignore:
+    - "**.md"
+
+jobs:
+  android:
+    runs-on: macos-latest
+    timeout-minutes: 30
+    steps:
+
+    - name: "Git Checkout"
+      uses: actions/checkout@v2
+
+    - name: "Install Node"
+      uses: actions/setup-node@v2
+      with:
+        node-version: '16'
+
+    - uses: actions/setup-java@v2
+      name: "Install Java"
+      with:
+        distribution: 'temurin'
+        java-version: '11'
+
+    - name: "Install Flutter"
+      run: |
+        sh .github/workflows/scripts/install-flutter.sh stable
+
+    - name: "Install Tools"
+      run: |
+        sh ./.github/workflows/scripts/install-tools.sh
+        flutter config --no-enable-web --no-enable-ios --no-enable-macos-desktop
+        sudo npm i -g firebase-tools
+#
+    - name: "Start Firebase Emulator"
+      run: |
+        sh ./.github/workflows/scripts/start-firebase-emulator.sh
+
+    - name: "Drive Example"
+      uses: reactivecircus/android-emulator-runner@v2
+      with:
+        api-level: 28
+        arch: x86_64
+        # Firebase Firestore works without Google Play Services, so we don't use the `googleapis`
+        # emulator target as it's considerably slower on CI.
+        target: default
+        profile: Nexus 5X
+        script: sh ./.github/workflows/scripts/drive-app.sh firebase_snippets_app

.github/workflows/scripts/drive-app.sh

@@ -0,0 +1,11 @@
+#!/bin/bash
+
+PROJECT_NAME=$1
+TARGET_PATH="packages/$PROJECT_NAME/"
+
+# The && are necessary for some reason when using the Android Emulator action
+pushd "$TARGET_PATH" || exit &&
+flutter clean &&
+flutter pub get &&
+flutter format . &&
+flutter test integration_test

.github/workflows/scripts/install-flutter.sh

@@ -0,0 +1,5 @@
+#!/bin/bash
+
+BRANCH=$1
+git clone https://github.com/flutter/flutter.git --depth 1 -b $BRANCH "$GITHUB_WORKSPACE/_flutter"
+echo "$GITHUB_WORKSPACE/_flutter/bin" >> $GITHUB_PATH

.github/workflows/scripts/install-tools.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+flutter config --no-analytics
+flutter pub global activate melos 1.1.0
+echo "$HOME/.pub-cache/bin" >> $GITHUB_PATH
+echo "$GITHUB_WORKSPACE/_flutter/.pub-cache/bin" >> $GITHUB_PATH
+echo "$GITHUB_WORKSPACE/_flutter/bin/cache/dart-sdk/bin" >> $GITHUB_PATH

.github/workflows/scripts/start-firebase-emulator.sh

@@ -0,0 +1,58 @@
+#!/bin/bash
+if ! [ -x "$(command -v firebase)" ]; then
+  echo "❌ Firebase tools CLI is missing."
+  exit 1
+fi
+
+if ! [ -x "$(command -v node)" ]; then
+  echo "❌ Node.js is missing."
+  exit 1
+fi
+
+if ! [ -x "$(command -v npm)" ]; then
+  echo "❌ NPM is missing."
+  exit 1
+fi
+
+export STORAGE_EMULATOR_DEBUG=true
+EMU_START_COMMAND="firebase emulators:start --only firestore --project flutter-fire-snippets"
+
+MAX_RETRIES=3
+MAX_CHECKATTEMPTS=60
+CHECKATTEMPTS_WAIT=1
+
+RETRIES=1
+while [ $RETRIES -le $MAX_RETRIES ]; do
+
+  if [[ -z "${CI}" ]]; then
+    echo "Starting Firebase Emulator Suite in foreground."
+    $EMU_START_COMMAND
+    exit 0
+  else
+    echo "Starting Firebase Emulator Suite in background."
+    $EMU_START_COMMAND &
+    CHECKATTEMPTS=1
+    while [ $CHECKATTEMPTS -le $MAX_CHECKATTEMPTS ]; do
+      sleep $CHECKATTEMPTS_WAIT
+      if curl --output /dev/null --silent --fail http://localhost:8080; then
+        # Check again since it can exit before the emulator is ready.
+        sleep 15
+        if curl --output /dev/null --silent --fail http://localhost:8080; then
+          echo "Firebase Emulator Suite is online!"
+          exit 0
+        else
+          echo "❌ Firebase Emulator exited after startup."
+          exit 1
+        fi
+      fi
+      echo "Waiting for Firebase Emulator Suite to come online, check $CHECKATTEMPTS of $MAX_CHECKATTEMPTS..."
+      ((CHECKATTEMPTS = CHECKATTEMPTS + 1))
+    done
+  fi
+
+  echo "Firebase Emulator Suite did not come online in $MAX_CHECKATTEMPTS checks. Try $RETRIES of $MAX_RETRIES."
+  ((RETRIES = RETRIES + 1))
+
+done
+echo "Firebase Emulator Suite did not come online after $MAX_RETRIES attempts."
+exit 1