manual-release.yml

name: Manual Release

on:
  workflow_dispatch:
    inputs:
      tag_version:
        description: 'Existing tag version to release (e.g., v1.2.3)'
        required: true
        type: string

permissions:
  contents: write
  packages: write

env:
  REGISTRY: ghcr.io
  IMAGE_NAME: ${{ github.repository }}

jobs:
  validate-tag:
    runs-on: ubuntu-latest
    outputs:
      tag-exists: ${{ steps.check.outputs.exists }}
    steps:
    - name: Checkout code
      uses: actions/checkout@v4
      with:
        fetch-depth: 0

    - name: Check if tag exists
      id: check
      run: |
        if git tag -l | grep -q "^${{ github.event.inputs.tag_version }}$"; then
          echo "exists=true" >> $GITHUB_OUTPUT
          echo "✅ Tag ${{ github.event.inputs.tag_version }} exists"
        else
          echo "exists=false" >> $GITHUB_OUTPUT
          echo "❌ Tag ${{ github.event.inputs.tag_version }} does not exist"
          exit 1
        fi

  release:
    needs: validate-tag
    if: needs.validate-tag.outputs.tag-exists == 'true'
    runs-on: ubuntu-latest
    steps:
    - name: Checkout code
      uses: actions/checkout@v4
      with:
        ref: ${{ github.event.inputs.tag_version }}
        fetch-depth: 0

    - name: Log in to Container Registry
      uses: docker/login-action@v3
      with:
        registry: ${{ env.REGISTRY }}
        username: ${{ github.actor }}
        password: ${{ secrets.GITHUB_TOKEN }}

    - name: Tag Docker image as latest
      run: |
        # Pull the existing versioned image and retag as latest
        docker pull ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ github.event.inputs.tag_version }}
        docker tag ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ github.event.inputs.tag_version }} ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:latest
        docker push ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:latest

    - name: Find workflow run for tag
      id: find-run
      run: |
        # Find the workflow run that created this tag
        TAG_COMMIT=$(git rev-list -n 1 ${{ github.event.inputs.tag_version }})
        echo "Tag commit: $TAG_COMMIT"
        
        # Get the workflow run ID that built this commit
        RUN_ID=$(curl -s -H "Authorization: Bearer ${{ secrets.GITHUB_TOKEN }}" \
          "https://api.github.com/repos/${{ github.repository }}/actions/runs?head_sha=$TAG_COMMIT&status=completed" \
          | jq -r '.workflow_runs[] | select(.name == "Build and Release") | .id' | head -1)
        
        if [ "$RUN_ID" = "null" ] || [ -z "$RUN_ID" ]; then
          echo "❌ Could not find workflow run for tag ${{ github.event.inputs.tag_version }}"
          exit 1
        fi
        
        echo "Found workflow run: $RUN_ID"
        echo "run-id=$RUN_ID" >> $GITHUB_OUTPUT

    - name: Download build artifacts
      uses: actions/download-artifact@v4
      with:
        name: binaries-${{ github.event.inputs.tag_version }}
        path: dist/
        github-token: ${{ secrets.GITHUB_TOKEN }}
        repository: ${{ github.repository }}
        run-id: ${{ steps.find-run.outputs.run-id }}

    - name: Generate changelog
      id: changelog
      run: |
        # Get the previous tag for changelog generation
        PREVIOUS_TAG=$(git describe --tags --abbrev=0 ${{ github.event.inputs.tag_version }}^)
        echo "Generating changelog from $PREVIOUS_TAG to ${{ github.event.inputs.tag_version }}"
        
        # Generate changelog
        CHANGELOG=$(git log --pretty=format:"- %s (%h)" $PREVIOUS_TAG..${{ github.event.inputs.tag_version }})
        
        # Save changelog to output
        echo "changelog<<EOF" >> $GITHUB_OUTPUT
        echo "$CHANGELOG" >> $GITHUB_OUTPUT
        echo "EOF" >> $GITHUB_OUTPUT

    - name: Create GitHub Release
      uses: softprops/action-gh-release@v1
      with:
        tag_name: ${{ github.event.inputs.tag_version }}
        name: Release ${{ github.event.inputs.tag_version }}
        body: |
          ## What's Changed
          
          ${{ steps.changelog.outputs.changelog }}
          
          ## Docker Images
          
          ```bash
          docker pull ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ github.event.inputs.tag_version }}
          docker pull ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:latest
          ```
          
          ## Installation
          
          ### Homebrew
          ```bash
          brew tap thand-io/tap
          brew install thand
          ```
          
        files: |
          dist/*
        draft: false
        prerelease: false

  homebrew:
    needs: release
    runs-on: ubuntu-latest
    steps:
    - name: Trigger Homebrew Tap Update
      uses: peter-evans/repository-dispatch@v3
      with:
        token: ${{ secrets.HOMEBREW_TAP_TOKEN }}
        repository: thand-io/homebrew-tap
        event-type: update-formula
        client-payload: |
          {
            "version": "${{ github.event.inputs.tag_version }}",
            "repository": "${{ github.repository }}",
            "release_url": "https://github.com/${{ github.repository }}/releases/tag/${{ github.event.inputs.tag_version }}"
          }