github-release.yml

on:
  schedule:
    - cron: "0 20 * * *"
  workflow_dispatch:

name: do-github-release

jobs:

  check-app-changes:
    runs-on: ubuntu-latest
    outputs:
      app_changed: ${{ steps.check_app_changes.outputs.app_changed }}
    steps:
      - name: Checkout repo
        uses: actions/checkout@v2
        with:
          token: ${{secrets.ACTIONS_PAT}}
          fetch-depth: 0

      - name: Check if app directory changed
        id: check_app_changes
        run: |
          LAST_RELEASE_TAG=$(git describe --tags $(git rev-list --tags --max-count=1))
          echo "LAST_RELEASE_TAG was $LAST_RELEASE_TAG"
          LAST_RELEASE_COMMIT=$(git rev-list -n 1 $LAST_RELEASE_TAG)
          echo "LAST_RELEASE_COMMIT was $LAST_RELEASE_COMMIT"
    
          changed_files=$(git diff-tree --no-commit-id --name-only $LAST_RELEASE_COMMIT $GITHUB_SHA | grep '^app' || echo "none")
          echo "Changed app files: $changed_files"

          if [ "$changed_files" != "none" ]; then
            echo "App directory has changed since the last release."
            echo "app_changed=true" >> "$GITHUB_OUTPUT"
          else
            echo "App directory hasn't changed since the last release."
            echo "app_changed=false" >> "$GITHUB_OUTPUT"
          fi

  build-and-release:
    runs-on: ubuntu-latest
    needs: check-app-changes
    if: ${{ needs.check-app-changes.outputs.app_changed == 'true' }}
    steps:

      - name: Checkout repo
        uses: actions/checkout@v2
        with:
          token: ${{secrets.ACTIONS_PAT}}

      # Uses semantic commits to automate version bumping.
      # No scope or "fix:" = PATCH, "feat:" or "minor:" = MINOR, "BREAKING CHANGE:", "major:", or fix/feat with appended "!" = MAJOR
      # Additional details: https://www.conventionalcommits.org/en/v1.0.0/
      - name: Increment version
        run: |
          #!/bin/bash
          COMMIT_MSG=$(git log -1 --pretty=format:"%b" || git log -1 --pretty=format:"%B")
          source version.properties
          BUMP_TYPE="patchVersion"
          buildNumber=${{ github.run_number }}

          if [[ $COMMIT_MSG == *"BREAKING CHANGE"* || $COMMIT_MSG == *"!"* || $COMMIT_MSG == *"major:"* ]]; then
              majorVersion=$((majorVersion + 1))
              minorVersion=0
              patchVersion=0
              BUMP_TYPE="majorVersion"
          elif [[ $COMMIT_MSG == *"feat:"* || $COMMIT_MSG == *"minor:"* ]]; then
              minorVersion=$((minorVersion + 1))
              patchVersion=0
              BUMP_TYPE="minorVersion"
          else
              patchVersion=$((patchVersion + 1))
          fi
          
          echo "majorVersion=$majorVersion" > version.properties
          echo "minorVersion=$minorVersion" >> version.properties
          echo "patchVersion=$patchVersion" >> version.properties
          echo "buildNumber=$buildNumber" >> version.properties

          VERSION=$majorVersion.$minorVersion.$patchVersion.$buildNumber
          RELEASE=$majorVersion.$minorVersion
          echo "COMMIT_MSG=$COMMIT_MSG" >> $GITHUB_ENV
          echo "VERSION=$VERSION" >> $GITHUB_ENV
          echo "RELEASE=$RELEASE" >> $GITHUB_ENV
          echo "BUMP_TYPE=$BUMP_TYPE" >> $GITHUB_ENV

      - name: Commit version changes
        uses: EndBug/add-and-commit@v7
        with:
          add: 'version.properties'
          message: Bump ${{ env.BUMP_TYPE }}
          author_email: git-action-bot@example.com
          author_name: Git Action Bot

      - name: Push changes
        uses: ad-m/github-push-action@master
        with:
          github_token: ${{ secrets.GITHUB_TOKEN }}
          branch: ${{ github.ref }}

      - name: Set up JDK 11
        uses: actions/setup-java@v1
        with:
          java-version: '11'

      - name: Make gradlew executable
        run: chmod +x ./gradlew

      - name: Build APK
        run: ./gradlew app:assembleRelease 

      - name: Sign APK
        uses: r0adkll/sign-android-release@v1
        with:
          releaseDirectory: app/build/outputs/apk/release
          signingKeyBase64: ${{ secrets.SIGNING_KEY }}
          alias: ${{ secrets.ALIAS }}
          keyStorePassword: ${{ secrets.KEY_STORE_PASSWORD }}
          keyPassword: ${{ secrets.KEY_PASSWORD }}

      - name: Upload built APK
        uses: actions/upload-artifact@v2
        with:
          name: Signed APK
          path: app/build/outputs/

      - name: Get matching release
        uses: cardinalby/git-get-release-action@1.2.4
        id: matching_release
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          releaseName: v${{ env.RELEASE }}
          doNotFailIfNotFound: 'true'

      - name: Delete matching release if exists
        if: steps.matching_release.outputs.id != ''
        run: |
          curl -X DELETE -H "Authorization: token ${{ secrets.GITHUB_TOKEN }}" "https://api.github.com/repos/${{ github.repository }}/releases/${{ steps.matching_release.outputs.id}}"

      # Updates the latest release if just a new patch, drafts a new prerelease if major or minor version has changed 
      - name: Make github release
        uses: svenstaro/upload-release-action@v2
        with:
          repo_token: ${{ secrets.GITHUB_TOKEN }}
          release_name: v${{ env.RELEASE }}
          tag: ${{ env.VERSION }}
          file: app/build/outputs/apk/release/app-release-unsigned-signed.apk
          asset_name: Field-Book-v${{ env.RELEASE }}.apk
          overwrite: ${{ env.BUMP_TYPE == 'patchVersion' }}
          prerelease: ${{ env.BUMP_TYPE != 'patchVersion' }}
          body: |
            ${{ steps.matching_release.outputs.body }}
            ${{ env.COMMIT_MSG }}
    
      - name: Release APK to Play Store
        uses: r0adkll/upload-google-play@v1
        with:
          serviceAccountJsonPlainText: ${{ secrets.SERVICE_ACCOUNT_JSON }}
          packageName: com.fieldbook.tracker
          releaseFiles: app/build/outputs/apk/release/app-release-unsigned-signed.apk
          track: alpha