auto_build.yml

# Action to automatically build the project when a new tag is created
# always uses the 'main' branch for building
# also, this action runs unit tests before the build (only published as artifact)

name: Build and Publish
on:
  # new tag pushed
  push:
    tags:
      - '*'
  
  # and manual run
  workflow_dispatch:
jobs:
  # build release
  build_apk:
    name: Build APK
    runs-on: ubuntu-latest
    timeout-minutes: 10
    env:
      JAVA_TOOL_OPTIONS: -Xmx5g -XX:+UseParallelGC
    steps:
      # setup env
      - uses: actions/checkout@v4
        with:
          ref: main
      - uses: actions/setup-java@v2
        with:
          java-version: 11
      - run: |
          mkdir -p ~/.gradle
          cp .github/gh-gradle.properties ~/.gradle/gradle.properties
          chmod +x ./gradlew

      # write sign.properties
      - name: Write Signing Config
        run: |
          # write keystore
          echo "${{ secrets.KEY_STORE }}" | base64 -d > ./keystore.jks

          # write sign.properties
          cat <<EOT > ./sign.properties         
          # key alias to use for application signing
          key_alias=${{ secrets.ALIAS }}
          
          # key password
          key_password=${{ secrets.KEY_PASSWORD }}
          
          # path of the keystore to use for signing
          # relative to the project root (where this file also is)
          keystore_path=keystore.jks
          
          # password for the keystore
          keystore_password=${{ secrets.KEY_STORE_PASSWORD}}
          EOT

      # run gradle build task
      - name: Run build
        uses: eskatos/gradle-command-action@v1
        with:
          arguments: testDebugUnitTest assembleRelease
          wrapper-cache-enabled: true
          dependencies-cache-enabled: true
          configuration-cache-enabled: true
      
      # delete universal APK to slim down artifact upload
      - run: rm -f ./app/build/outputs/apk/release/app-universal-release.apk

      # print contents of artifact dir
      - run: ls ./app/build/outputs/apk/release

      # print contents of artifact dir
      - run: ls ./app/build/test-results/testDebugUnitTest

      # upload results
      - name: Upload Test Results
        uses: actions/upload-artifact@v4
        if: always()
        with:
          name: unit-test-results
          path: ./app/build/test-results/testDebugUnitTest/*.xml

      # upload artifacts
      - name: Upload Artifacts
        uses: actions/upload-artifact@v4
        with:
          name: apks
          path: ./app/build/outputs/apk/release/*.apk

  # release to github
  release_github:
    name: Release On Github
    needs: build_apk
    runs-on: ubuntu-latest
    timeout-minutes: 10
    steps:
      # download artifacts
      - run: mkdir ./release/
      - name: Download Artifacts
        uses: actions/download-artifact@v4
        with:
          name: apks
          path: ./release/

      # print contents of artifact dir
      - run: ls ./release

      # calculate file hashes
      - name: Calculate Hashes
        id: apk_hash
        shell: bash
        run: |
          echo ::set-output name=arm::$(sha256sum "./release/app-armeabi-v7a-release.apk")
          echo ::set-output name=arm64::$(sha256sum "./release/app-arm64-v8a-release.apk")
          echo ::set-output name=x86::$(sha256sum "./release/app-x86-release.apk")
          echo ::set-output name=x64::$(sha256sum "./release/app-x86_64-release.apk")

      # print hashes
      - run: |
          echo ${{ steps.apk_hash.outputs.arm }}
          echo ${{ steps.apk_hash.outputs.arm64 }}
          echo ${{ steps.apk_hash.outputs.x86 }}
          echo ${{ steps.apk_hash.outputs.x64 }}

      # create new release
      - name: Create the Release
        uses: ncipollo/release-action@v1
        with:
          body: |           
            ---

            APK Hashes:
            
            - ${{ steps.apk_hash.outputs.arm }}
            - ${{ steps.apk_hash.outputs.arm64 }}
            - ${{ steps.apk_hash.outputs.x86 }}
            - ${{ steps.apk_hash.outputs.x64 }}

            > 🤖 this release was built automatically using Github Actions
          artifacts: "./release/*.apk"
          allowUpdates: true
          omitBody: false
          omitBodyDuringUpdate: false
          token: ${{ secrets.GITHUB_TOKEN }}

  # remove artifacts
  delete_artifacts:
    name: Delete Artifacts
    needs: release_github
    runs-on: ubuntu-latest
    timeout-minutes: 10
    steps:
      - name: Delete Artifacts
        uses: geekyeggo/delete-artifact@v1
        with:
          name: apks
          failOnError: false