build.yml

name: build app

on:
  # Every Saturday at 21:00 UTC
  schedule:
    - cron: '0 21 * * 6'
  # Manual triggers
  workflow_dispatch:

env:
  JAVA_VERSION: 17
  JAVA_DISTRO: 'temurin'

jobs:
  build-app:
    runs-on: macos-latest
    outputs:
      CREATE_RELEASE: ${{ steps.prepare_changelog.outputs.CREATE_RELEASE }}
      CHANGELOG: ${{ steps.prepare_changelog.outputs.CHANGELOG }}
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          fetch-depth: 0
          repository: 'ArthurKun21/FGA-Preview'
          token: ${{ secrets.PAT }}
      - name: Get previous release
        id: last_release
        uses: InsonusK/get-latest-release@7a9ff16c8c6b7ead5d71c0f1cc61f2703170eade # v1.1.0
        with:
          myToken: ${{ github.token }}
          exclude_types: "draft|prerelease"
          view_top: 1
      - name: Prepare build
        run: |
          commit_count=$(git rev-list --count HEAD)
          echo "COMMIT_COUNT=$commit_count" >> $GITHUB_ENV
          current_sha=$(git rev-parse --short HEAD)
          echo "CURRENT_SHA=$current_sha" >> $GITHUB_ENV
          
          echo "FGA_VERSION_CODE=$commit_count" >>${GITHUB_ENV}
          echo "FGA_VERSION_NAME=$current_sha" >>${GITHUB_ENV}

          prev_commit_count=$(echo "${{ steps.last_release.outputs.tag_name }}" | sed -e "s/^pre-//")

          commit_count_diff=$(($commit_count - $prev_commit_count))
          echo "commit_count_diff=$commit_count_diff" >> $GITHUB_ENV

          prev_release_sha=$(git rev-parse --short HEAD~$commit_count_diff)
          echo "PREV_RELEASE_SHA=$prev_release_sha" >> $GITHUB_ENV

          echo "COMMIT_LOGS<<{delimiter}
          $(curl -H "Accept: application/vnd.github.v3+json" \
            -H "Authorization: Bearer ${{ secrets.PAT }}" \
            "https://api.github.com/repos/Arthurkun21/fga-preview/compare/$prev_release_sha...$current_sha" \
            | jq '[.commits[]|{message:(.commit.message | split("\n")), username:.author.login}]' \
            | jq -r '.[]|"- \(.message | first) (@\(.username))"')
          {delimiter}" >> $GITHUB_ENV
      - name: Prepare changelog
        id: prepare_changelog
        if: ${{ env.commit_count_diff > 0 }}
        run: |
          # Get the current date
          CURRENT_DATE=$(date +"%Y-%m-%d")

          COMPARISON_LINK="https://github.com/ArthurKun21/fga-preview/compare/${PREV_RELEASE_SHA}...${CURRENT_SHA}"

          CHANGELOG="\n## $CURRENT_DATE\n${COMMIT_LOGS}\n\n[Compare changes]($COMPARISON_LINK)\n"
          
          echo "CHANGELOG<<EOF" >> $GITHUB_OUTPUT
          echo -e "$CHANGELOG" >> $GITHUB_OUTPUT
          echo "EOF" >> $GITHUB_OUTPUT
          echo "CREATE_RELEASE=true" >> $GITHUB_OUTPUT

      - name: Validate Gradle Wrapper
        if: ${{ env.commit_count_diff > 0 }}
        uses: gradle/actions/wrapper-validation@v4
      
      - name: Set up JDK 17
        if: ${{ env.commit_count_diff > 0 }}
        uses: actions/setup-java@v4
        with:
          java-version: ${{ env.JAVA_VERSION }}
          distribution: ${{ env.JAVA_DISTRO }}
  
      - name: Set up gradle
        if: ${{ env.commit_count_diff > 0 }}
        uses: gradle/actions/setup-gradle@v4
    
      - name: Build Android Package
        if: ${{ env.commit_count_diff > 0 }}
        run: |
          ./gradlew assemblepreview --scan --parallel --no-daemon
      
      - name: Clean up build artifacts
        if: ${{ env.commit_count_diff > 0 }}
        run: |
          cp app/build/outputs/apk/preview/app-preview.apk fga-preview-${{ env.COMMIT_COUNT }}.apk
          sha=`shasum -a 256 fga-preview-${{ env.COMMIT_COUNT }}.apk | awk '{ print $1 }'`
          echo "APK_UNIVERSAL_SHA=$sha" >> $GITHUB_ENV

      - name: Create release
        uses: softprops/action-gh-release@c95fe1489396fe8a9eb87c0abf8aa5b2ef267fda # v2.2.1
        if: ${{ env.commit_count_diff > 0 }}
        with:
          tag_name: pre-${{ env.COMMIT_COUNT }}
          name: FGA Preview ${{ env.COMMIT_COUNT }}
          body: |
            ### Commits

            https://github.com/ArthurKun21/fga-preview/compare/${{ env.PREV_RELEASE_SHA }}...${{ env.CURRENT_SHA }}

            ${{ env.COMMIT_LOGS }}

            ---
              
            ### Checksums

            | Variant | SHA-256 |
            | ------- | ------- |
            | Universal APK | ${{ env.APK_UNIVERSAL_SHA }} |
          files: |
            fga-preview-${{ env.COMMIT_COUNT }}.apk
          prerelease: false
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      - name: Prune old releases
        uses: dev-drprasad/delete-older-releases@dfbe6be2a006e9475dfcbe5b8d201f1824c2a9fe # v0.3.4
        if: ${{ env.commit_count_diff > 0 }}
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          keep_latest: 5
          delete_tags: true
  
  changelog:
    runs-on: macos-latest
    needs: build-app
    permissions:
      contents: write
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
      
      - name: Update CHANGELOG.md
        if: ${{ needs.build-app.outputs.CREATE_RELEASE == 'true' }}
        run: |
          echo -e "${{ needs.build-app.outputs.CHANGELOG }}\n$(cat CHANGELOG.md)" > CHANGELOG.md

          git config --global user.name 'github-actions[bot]'
          git config --global user.email '41898282+github-actions[bot]@users.noreply.github.com' 

          # Use ISO-8601 format for consistency
          CURRENT_DATE_TIME=$(date -u +"%Y-%m-%dT%H:%M:%SZ")

          git add CHANGELOG.md
          git commit -m "Update CHANGELOG.md @ ${CURRENT_DATE_TIME}"
          git push