TwitchDropsMiner/.github/workflows/release.yml

name: Release

on:
  workflow_dispatch:
    inputs:
      version:
        description: 'Release version (SemVer format, e.g., 1.2.3 or 2.0.0-rc.1)'
        required: true
        type: string

permissions:
  contents: write
  packages: write

jobs:
  validate:
    name: Validate Version
    runs-on: ubuntu-latest
    outputs:
      version: ${{ steps.validate.outputs.version }}
      is_prerelease: ${{ steps.validate.outputs.is_prerelease }}

    steps:
      - name: Validate SemVer format
        id: validate
        run: |
          VERSION="${{ github.event.inputs.version }}"

          # SemVer regex: https://semver.org/#is-there-a-suggested-regular-expression-regex-to-check-a-semver-string
          SEMVER_REGEX='^(0|[1-9][0-9]*)\.(0|[1-9][0-9]*)\.(0|[1-9][0-9]*)(-((0|[1-9][0-9]*|[0-9]*[a-zA-Z-][0-9a-zA-Z-]*)(\.(0|[1-9][0-9]*|[0-9]*[a-zA-Z-][0-9a-zA-Z-]*))*))?(\+([0-9a-zA-Z-]+(\.[0-9a-zA-Z-]+)*))?$'

          if ! echo "$VERSION" | grep -Pq "$SEMVER_REGEX"; then
            echo "Error: Version '$VERSION' is not valid SemVer format"
            echo "Examples: 1.2.3, 2.0.0-rc.1, 1.0.0-beta.2+build.123"
            exit 1
          fi

          echo "version=$VERSION" >> "$GITHUB_OUTPUT"

          # Check if pre-release (contains hyphen)
          if echo "$VERSION" | grep -q '-'; then
            echo "is_prerelease=true" >> "$GITHUB_OUTPUT"
            echo "Detected pre-release version: $VERSION"
          else
            echo "is_prerelease=false" >> "$GITHUB_OUTPUT"
            echo "Detected stable release version: $VERSION"
          fi

  create-release-branch:
    name: Create Release Branch
    runs-on: ubuntu-latest
    needs: validate
    outputs:
      branch_name: ${{ steps.create-branch.outputs.branch_name }}

    steps:
      - name: Checkout code
        uses: actions/checkout@v5
        with:
          ref: master
          fetch-depth: 0

      - name: Configure Git
        run: |
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"

      - name: Check if branch exists
        id: check-branch
        run: |
          BRANCH_NAME="release/${{ needs.validate.outputs.version }}"

          if git ls-remote --heads origin "$BRANCH_NAME" | grep -q "$BRANCH_NAME"; then
            echo "Error: Branch '$BRANCH_NAME' already exists"
            exit 1
          fi

          echo "Branch '$BRANCH_NAME' does not exist, proceeding..."

      - name: Create release branch
        id: create-branch
        run: |
          BRANCH_NAME="release/${{ needs.validate.outputs.version }}"
          VERSION="${{ needs.validate.outputs.version }}"

          # Create and checkout new branch
          git checkout -b "$BRANCH_NAME"

          # Update version.py
          echo "__version__ = \"$VERSION\"" > src/version.py

          # Commit changes
          git add src/version.py
          git commit -m "chore: bump version to $VERSION"

          # Push branch
          git push origin "$BRANCH_NAME"

          # Create and push tag
          git tag "v$VERSION"
          git push origin "v$VERSION"

          echo "branch_name=$BRANCH_NAME" >> "$GITHUB_OUTPUT"
          echo "Created branch '$BRANCH_NAME' and tag 'v$VERSION'"

  docker-build:
    name: Build & Push Docker Images
    runs-on: ubuntu-latest
    needs: [validate, create-release-branch]
    environment: prod

    steps:
      - name: Checkout release branch
        uses: actions/checkout@v5
        with:
          ref: ${{ needs.create-release-branch.outputs.branch_name }}

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v3

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Login to Docker Hub
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Generate Docker tags
        id: docker-tags
        run: |
          VERSION="${{ needs.validate.outputs.version }}"
          IMAGE="rangermix/twitch-drops-miner"
          IS_PRERELEASE="${{ needs.validate.outputs.is_prerelease }}"

          # Always include the full version tag
          TAGS="$IMAGE:$VERSION"

          # For stable releases, add major.minor, major, and latest tags
          if [ "$IS_PRERELEASE" = "false" ]; then
            # Extract major.minor.patch
            MAJOR=$(echo "$VERSION" | cut -d. -f1)
            MINOR=$(echo "$VERSION" | cut -d. -f2)

            TAGS="$TAGS,$IMAGE:$MAJOR.$MINOR"
            TAGS="$TAGS,$IMAGE:$MAJOR"
            TAGS="$TAGS,$IMAGE:latest"
          fi

          echo "tags=$TAGS" >> "$GITHUB_OUTPUT"
          echo "Generated tags: $TAGS"

      - name: Build and push Docker image
        uses: docker/build-push-action@v6
        with:
          context: .
          platforms: linux/amd64,linux/arm64
          push: true
          tags: ${{ steps.docker-tags.outputs.tags }}
          labels: |
            org.opencontainers.image.title=Twitch Drops Miner
            org.opencontainers.image.description=Automatically mine Twitch drops
            org.opencontainers.image.version=${{ needs.validate.outputs.version }}
            org.opencontainers.image.revision=${{ github.sha }}
            org.opencontainers.image.created=${{ github.event.repository.updated_at }}
          cache-from: type=gha
          cache-to: type=gha,mode=max
          build-args: |
            BUILD_DATE=${{ github.event.repository.updated_at }}
            VCS_REF=${{ github.sha }}
            VERSION=${{ needs.validate.outputs.version }}

  github-release:
    name: Create GitHub Release
    runs-on: ubuntu-latest
    needs: [validate, create-release-branch, docker-build]

    steps:
      - name: Checkout release branch
        uses: actions/checkout@v5
        with:
          ref: ${{ needs.create-release-branch.outputs.branch_name }}
          fetch-depth: 0

      - name: Generate release notes
        id: release-notes
        run: |
          VERSION="${{ needs.validate.outputs.version }}"

          # Get the previous tag
          PREV_TAG=$(git describe --tags --abbrev=0 HEAD^ 2>/dev/null || echo "")

          if [ -n "$PREV_TAG" ]; then
            echo "## Changes since $PREV_TAG" > release_notes.md
            echo "" >> release_notes.md
            git log $PREV_TAG..HEAD --pretty=format:"- %s (%h)" >> release_notes.md
          else
            echo "## Initial Release" > release_notes.md
            echo "" >> release_notes.md
            echo "First release of Twitch Drops Miner $VERSION" >> release_notes.md
          fi

          echo "" >> release_notes.md
          echo "" >> release_notes.md
          echo "## Docker Images" >> release_notes.md
          echo "" >> release_notes.md
          echo '```bash' >> release_notes.md
          echo "docker pull rangermix/twitch-drops-miner:$VERSION" >> release_notes.md
          echo '```' >> release_notes.md

      - name: Create GitHub Release
        uses: softprops/action-gh-release@v2
        with:
          tag_name: v${{ needs.validate.outputs.version }}
          name: Release ${{ needs.validate.outputs.version }}
          body_path: release_notes.md
          prerelease: ${{ needs.validate.outputs.is_prerelease }}
          draft: false
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}