release.yml

name: Build and Release

on:
  workflow_dispatch:
    inputs:
      version:
        description: 'Release version (e.g. 1.0.0)'
        required: true
        type: string

env:
  JAVA_VERSION: '17'
  GRADLE_OPTS: "-Dorg.gradle.daemon=false"

jobs:
  verify-version:
    runs-on: ubuntu-22.04
    permissions:
      contents: write
    outputs:
      version: ${{ github.event.inputs.version }}
    steps:
    - name: Checkout code
      uses: actions/checkout@v4
      with:
        ref: master
        fetch-depth: 0

    - name: Setup Git
      run: |
        git config --global user.name 'github-actions[bot]'
        git config --global user.email 'github-actions[bot]@users.noreply.github.com'
    
    - name: Validate version format
      run: |
        if [[ ! ${{ github.event.inputs.version }} =~ ^[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
          echo "Invalid version format. Must be in format x.y.z"
          exit 1
        fi
    
    - name: Extract current version
      id: current_version
      run: |
        echo "version=$(grep -E "^[[:space:]]*version[[:space:]]*=[[:space:]]*[^[:space:]]" version.properties | head -n 1 | cut -d'=' -f2 | tr -d '[:space:]' | sed 's/-snapshot$//')" >> $GITHUB_OUTPUT

    - name: Compare versions
      run: |
        CURRENT_VERSION="${{ steps.current_version.outputs.version }}"
        NEW_VERSION="${{ github.event.inputs.version }}"
        
        if ! dpkg --compare-versions "$NEW_VERSION" ge "$CURRENT_VERSION"; then
          echo "[error] New version ($NEW_VERSION) must be greater than or equal to current version ($CURRENT_VERSION)"
          exit 1
        fi

    - name: Set version
      id: set_version
      run: echo "version=${{ github.event.inputs.version }}" >> $GITHUB_OUTPUT

    - name: Update version.properties version
      run: |
        VERSION="${{ github.event.inputs.version }}"
        if ! sed -i "s/^version=.*/version=$VERSION/" version.properties; then
          echo "[error] Failed to update version.properties"
          exit 1
        fi
        
        if git diff --quiet version.properties; then
          echo "[info] No changes to version.properties"
        else
          git add version.properties
          git commit -m "chore: update version to $VERSION"
          git push || {
            echo "[error] Failed to push version update"
            exit 1
          }
        fi

    - name: Create and push tag
      run: |
        TAG_NAME="v${{ steps.set_version.outputs.version }}"
        
        if git rev-parse "$TAG_NAME" >/dev/null 2>&1; then
          echo "[warning] Tag $TAG_NAME already exists, skipping tag creation"
        else
          echo "Creating new tag $TAG_NAME"
          git tag -a "$TAG_NAME" -m "Release $TAG_NAME"
          git push origin "$TAG_NAME" || {
            echo "[error] Failed to push tag $TAG_NAME"
            exit 1
          }
        fi
    
    - name: Verify version match
      run: |
        PKG_VERSION=$(grep -E "^[[:space:]]*version[[:space:]]*=[[:space:]]*[^[:space:]]" version.properties | head -n 1 | cut -d'=' -f2 | tr -d '[:space:]')
        if [ "${{ github.event.inputs.version }}" != "$PKG_VERSION" ]; then
          echo "Version mismatch: Input version (${{ github.event.inputs.version }}) does not match version.properties version ($PKG_VERSION)"
          exit 1
        fi

  build-jar:
    needs: verify-version
    runs-on: ubuntu-22.04
    steps:
    - name: Checkout code
      uses: actions/checkout@v4
      with:
        ref: master
        fetch-depth: 0

    - name: Set up JDK
      uses: actions/setup-java@v3
      with:
        distribution: 'temurin'
        java-version: ${{ env.JAVA_VERSION }}
        cache: 'gradle'

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

    - name: Build Processor JAR
      run: |
        ./gradlew clean bootJar -Pversion=${{ needs.verify-version.outputs.version }} --stacktrace || {
          echo "[error] Build failed. See below for detailed logs:"
          find . -name "*.log" -type f -exec sh -c 'echo "=== $1 ==="; cat "$1"' _ {} \;
          exit 1
        }

    - name: Prepare distribution
      run: |
        cp "build/libs/thymelab-processor-${{ needs.verify-version.outputs.version }}.jar" ./

    - name: Upload JAR artifact
      uses: actions/upload-artifact@v4
      with:
        name: jar
        path: thymelab-processor-${{ needs.verify-version.outputs.version }}.jar
        retention-days: 5

  package-examples:
    needs: verify-version
    runs-on: ubuntu-22.04
    steps:
    - name: Checkout code
      uses: actions/checkout@v4
      with:
        ref: master

    - name: Create examples archive
      run: |
        if [ ! -d "examples" ] || [ -z "$(ls -A examples)" ]; then
          echo "[error] Examples directory not found or empty"
          exit 1
        fi
        zip -r "thymelab-examples-${{ needs.verify-version.outputs.version }}.zip" examples/

    - name: Upload examples artifact
      uses: actions/upload-artifact@v4
      with:
        name: examples
        path: thymelab-examples-*.zip
        retention-days: 5

  create-release:
    needs: [verify-version, build-jar, package-examples]
    runs-on: ubuntu-22.04
    permissions:
      contents: write
    steps:
    - name: Checkout code
      uses: actions/checkout@v4
      with:
        ref: master
        fetch-depth: 0
        token: ${{ secrets.GITHUB_TOKEN }}

    - name: Setup Git
      run: |
        git config --global user.name 'github-actions[bot]'
        git config --global user.email 'github-actions[bot]@users.noreply.github.com'
        git checkout master

    - name: Get Changes
      id: get_changes
      run: |
        PREV_TAG=$(git describe --tags --abbrev=0 HEAD^ 2>/dev/null || echo "")
        if [ -z "$PREV_TAG" ]; then
          CHANGES=$(git log --pretty=format:"- %s")
        else
          CHANGES=$(git log --pretty=format:"- %s" ${PREV_TAG}..HEAD)
        fi
        echo "changes<<EOF" >> $GITHUB_OUTPUT
        echo "$CHANGES" >> $GITHUB_OUTPUT
        echo "EOF" >> $GITHUB_OUTPUT

    - name: Download JAR artifact
      uses: actions/download-artifact@v4
      with:
        name: jar
        path: release-files

    - name: Download examples artifact
      uses: actions/download-artifact@v4
      with:
        name: examples
        path: release-files

    - name: Create Release
      uses: softprops/action-gh-release@v1
      with:
        name: ThymeLab v${{ needs.verify-version.outputs.version }}
        body: |
          ## ThymeLab v${{ needs.verify-version.outputs.version }}

          ### 📥 Downloads
          - **📦 thymelab-processor-${{ needs.verify-version.outputs.version }}.jar**: Standalone processor JAR
          - **📚 thymelab-examples-${{ needs.verify-version.outputs.version }}.zip**: Template examples and resources

          ### 🚀 Quick Start
          ```bash
          java -jar thymelab-processor-${{ needs.verify-version.outputs.version }}.jar \
              -Dserver.port=8080 \
              -Dlogging.level.com.github.thkwag.thymelab=INFO \
              -Dwatch.directory.templates=/path/to/templates \
              -Dwatch.directory.thymeleaf-data=/path/to/thymelab/data \
              -Dwatch.directory.static=/path/to/static
          ```
          
          ### 📌 Note
          The examples package contains template examples that can be used with ThymeLab Processor.

          ### 📝 What's Changed
          ${{ steps.get_changes.outputs.changes }}
        files: |
          release-files/thymelab-processor-${{ needs.verify-version.outputs.version }}.jar
          release-files/thymelab-examples-${{ needs.verify-version.outputs.version }}.zip
        draft: false
        prerelease: false
        generate_release_notes: true
        tag_name: v${{ needs.verify-version.outputs.version }}
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

    - name: Update to next snapshot version
      run: |
        CURRENT_VERSION="${{ needs.verify-version.outputs.version }}"
        NEW_VERSION=$(echo $CURRENT_VERSION | awk -F. '{$NF = $NF + 1;} 1' OFS=.)-snapshot
        
        if ! sed -i "s/^version=.*/version=$NEW_VERSION/" version.properties; then
          echo "[error] Failed to update version.properties"
          exit 1
        fi
        git add version.properties
        git commit -m "chore: update version to $NEW_VERSION"
        git push || {
          echo "[error] Failed to push changes"
          exit 1
        }