java-cd.yaml

on:
  workflow_dispatch:
    inputs:
      logLevel:
        description: 'Log level (info or debug)'
        required: true
        default: 'info'
  push:
    tags:
      # Semver release tags
      - 'v[0-9]+.[0-9]+.[0-9]+*'

# Continuous delivery
name: Java CD

jobs:
  generate:
    name: Generate changelog
    runs-on: ubuntu-latest
    steps:
      # Checkout repository
      - uses: actions/checkout@v2
      # Ruby is needed to generate changelog
      - name: Setup Ruby
        uses: ruby/setup-ruby@v1
        with:
          ruby-version: 3.0
          bundler-cache: true
      # Generate project changelog with gradle
      - name: Generate changelog
        env:
          CHANGELOG_GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        uses: burrunan/gradle-cache-action@v1
        with:
          arguments: generateChangelog --stacktrace
      # Cache generated changelog
      - name: Cache changelog
        uses: actions/cache@v2
        with:
          path: ./CHANGELOG.md
          key: ${{ runner.os }}-changelog-${{ github.sha }}

  build:
    name: Build on Linux
    runs-on: ubuntu-latest
    steps:
      # Checkout repository
      - uses: actions/checkout@v2
      # Setup Java environment
      - name: Setup JDK 1.8
        uses: actions/setup-java@v1
        with:
          java-version: 1.8
      # Pull gradle project files from cache
      - name: Cache gradle files
        id: cache-gradle
        uses: actions/cache@v2
        with:
          path: |
            ./.gradle
            ./buildSrc/.gradle
          key: ${{ runner.os }}-gradle-${{ hashFiles('**/gradle-wrapper.properties') }}
          restore-keys: |
            ${{ runner.os }}-gradle-
      # Check if cache was pulled correctly
      - name: Validate cache
        id: cache-validate
        run: |
          echo Validating gradle cache...
          if [ "${{ steps.cache-gradle.outputs.cache-hit }}" != true ]; then
            echo ::set-output name=fail::true
            echo ::error Gradle project files were not pulled from cache
          fi
      # Assemble the output of this project with gradle
      - name: Assemble distribution
        uses: burrunan/gradle-cache-action@v1
        with:
          arguments: assembleDist -x generateChangelog --stacktrace
      # Cache distribution files
      - name: Cache distribution
        id: cache-build
        uses: actions/cache@v2
        with:
          path: |
            ./build/distributions
          key: ${{ runner.os }}-dist-${{ github.sha }}

  release:
    name: Release project
    runs-on: ubuntu-latest
    needs: [ build, generate ]
    steps:
      # Checkout repository
      - uses: actions/checkout@v2
        with:
          ref: ${{ github.ref }}    # Checkout target tag
          fetch-depth: 0            # Fetch all branches and tags
      # Ruby is needed to generate changelog
      - name: Setup Ruby
        uses: ruby/setup-ruby@v1
        with:
          ruby-version: 3.0
          bundler-cache: true
      # Print information about working tree
      - name: Inspect working tree
        run: |
          printf "Working tree files: \n%s\n\n" "$(ls | sed 's/.*/-- &/')"
          if [ -d ./build ]; then
            printf "Build files found: \n%s\n\n" "$(ls ./build | sed 's/.*/-- &/')"
          fi
          if [ -d ./build/distributions ]; then
            printf "Distributions found: \n%s\n" "$(ls ./build/distributions | sed 's/.*/-- &/')"
          fi
          # Delete the changelog, it will be pulled from cache in next step
          if [ -f ./CHANGELOG.md ]; then
            rm ./CHANGELOG.md
            if [ $? != 0 ]; then
              echo ::error Unable to delete CHANGELOG.md
            fi
          fi
      # Pull gradle project files from cache
      - name: Cache gradle files
        id: cache-gradle
        uses: actions/cache@v2
        with:
          path: |
            ./.gradle
            ./buildSrc/.gradle
          key: ${{ runner.os }}-gradle-${{ hashFiles('**/gradle-wrapper.properties') }}
          restore-keys: |
            ${{ runner.os }}-gradle-
      # Pull generated changelog from cache
      - name: Cache changelog
        id: cache-changelog
        uses: actions/cache@v2
        with:
          path: ./CHANGELOG.md
          key: ${{ runner.os }}-changelog-${{ github.sha }}
      # Pull distribution files from cache
      - name: Cache distribution
        id: cache-build
        uses: actions/cache@v2
        with:
          path: |
            ./build/distributions
          key: ${{ runner.os }}-dist-${{ github.sha }}
      # Check if cache was pulled correctly
      - name: Validate cache
        id: cache-validate
        run: |
          echo Validating changelog cache...
          if [ "${{ steps.cache-gradle.outputs.cache-hit }}" != true ]; then
            echo ::set-output name=fail::true
            echo ::error Gradle project files were not pulled from cache
          fi
          if [ "${{ steps.cache-changelog.outputs.cache-hit }}" != true ]; then
            echo ::set-output name=fail::true
            echo ::error Changelog was not pulled from cache
          fi
          if [ "${{ steps.cache-build.outputs.cache-hit }}" != true ]; then
            echo ::set-output name=fail::true
            echo ::error distributions were not pulled from cache
          fi
      # Read previous tag created in repository
      # Parse and see if it's a pre-release
      - name: Read last tag
        id: read-tag
        run: |
          echo ::set-output name=tag::$(git describe --abbrev=0 --match v[0-9]*.[0-9]*.[0-9]* ${{ github.ref }}^)
          echo ::set-output name=ref::$(echo ${{ github.ref }} | cut -c 11-)
          echo ::set-output name=name::$(echo ${{ github.ref }} | cut -c 12-)
          if [[ ${{ github.ref }} =~ ^.*\-(alpha|beta|rc).*$ ]]; then
              echo ::set-output name=isPreRelease::true
          fi
      # Generate changelog including only latest tag
      - uses: burrunan/gradle-cache-action@v1
        name: Generate release text
        env:
          CHANGELOG_GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          arguments: generateChangelog
          properties: |
            cg.sinceTag=${{ steps.read-tag.outputs.tag }}
            cg.output=./release_text.md
            cg.header=''
      # Remove notice from generated changelog
      - name: Trim release text
        run: |
          head -n -3 release_text.md > tmp.txt
          tail -n +4 tmp.txt > release_text.md
          less release_text.md
      # Create a release in Github repository
      - name: Create Github release
        id: create-release
        uses: actions/create-release@v1
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          tag_name: ${{ steps.read-tag.outputs.ref }}
          release_name: ${{ steps.read-tag.outputs.name }}
          prerelease: ${{ steps.read-tag.outputs.isPreRelease }}
          body_path: ./release_text.md
          draft: true
      # Upload distribution artifact to release
      - name: Upload distribution zip
        uses: actions/upload-release-asset@v1
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          upload_url: ${{ steps.create-release.outputs.upload_url }}
          asset_path: ./build/distributions/pz-zdoc-${{ steps.read-tag.outputs.name }}.zip
          asset_name: pz-zdoc-${{ steps.read-tag.outputs.name }}.zip
          asset_content_type: application/zip
      # Upload distribution artifact to release
      - name: Upload distribution tar
        uses: actions/upload-release-asset@v1
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          upload_url: ${{ steps.create-release.outputs.upload_url }}
          asset_path: ./build/distributions/pz-zdoc-${{ steps.read-tag.outputs.name }}.tar
          asset_name: pz-zdoc-${{ steps.read-tag.outputs.name }}.tar
          asset_content_type: application/tar
      # Publish to Sonatype repository
      - uses: burrunan/gradle-cache-action@v1
        name: Publish to Sonatype
        with:
          arguments: publishToSonatypeAndCloseStagingRepository
          properties: |
            signingKey=${{ secrets.GPG_SIGNING_KEY }}
            signingPassword=${{ secrets.GPG_SIGNING_PASSWORD }}
            sonatypeUsername=${{ secrets.SONATYPE_USERNAME }}
            sonatypePassword=${{ secrets.SONATYPE_PASSWORD }}