create-release-pr.yml

name: Create Release PR

on:
  workflow_dispatch:
    branches:
      - dev
    inputs:
      version_bump:
        description: 'Version bump type'
        required: true
        type: choice
        options:
          - patch
          - minor
          - major
        default: 'patch'

jobs:
  create-release-pr:
    runs-on: ubuntu-latest
    permissions:
      contents: write
      pull-requests: write
    steps:
      - name: Checkout dev branch
        uses: actions/checkout@v4
        with:
          ref: dev
          fetch-depth: 0

      - name: Get current version
        id: current_version
        run: |
          # Get version from main branch since that's the source of truth for releases
          git fetch origin main
          version=$(git show origin/main:deploy/helm/rag/Chart.yaml | grep '^version:' | awk '{print $2}')
          echo "version=$version" >> $GITHUB_OUTPUT

      - name: Calculate new version
        id: new_version
        run: |
          current="${{ steps.current_version.outputs.version }}"
          IFS='.' read -r major minor patch <<< "$current"

          case "${{ inputs.version_bump }}" in
            major)
              new_version="$((major + 1)).0.0"
              ;;
            minor)
              new_version="${major}.$((minor + 1)).0"
              ;;
            patch)
              new_version="${major}.${minor}.$((patch + 1))"
              ;;
          esac

          echo "version=$new_version" >> $GITHUB_OUTPUT
          echo "New version will be: $new_version"

      - name: Update Chart version
        run: |
          sed -i "s/^version: .*/version: ${{ steps.new_version.outputs.version }}/" deploy/helm/rag/Chart.yaml
          sed -i "s/^appVersion: .*/appVersion: \"${{ steps.new_version.outputs.version }}\"/" deploy/helm/rag/Chart.yaml

      - name: Update image tag to use release version
        run: |
          sed -i "s/tag: .*/tag: ${{ steps.new_version.outputs.version }}/" deploy/helm/rag/values.yaml

      - name: Commit version bump
        run: |
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"
          git checkout -b release/v${{ steps.new_version.outputs.version }}
          git add deploy/helm/rag/Chart.yaml deploy/helm/rag/values.yaml
          git commit -m "chore: bump version to ${{ steps.new_version.outputs.version }}"

          # Merge main into release branch to pre-resolve conflicts
          git fetch origin main
          git merge origin/main --no-edit || {
            # If conflicts occur, take our (release branch) version for Chart.yaml and values.yaml
            git checkout --ours deploy/helm/rag/Chart.yaml deploy/helm/rag/values.yaml deploy/helm/rag/Chart.lock
            git add deploy/helm/rag/Chart.yaml deploy/helm/rag/values.yaml deploy/helm/rag/Chart.lock
            git commit --no-edit
          }

          git push origin release/v${{ steps.new_version.outputs.version }}

      - name: Create Pull Request
        env:
          GH_TOKEN: ${{ github.token }}
        run: |
          gh pr create \
            --title "Release v${{ steps.new_version.outputs.version }}" \
            --body "## Release v${{ steps.new_version.outputs.version }}

          This PR merges changes from \`dev\` to \`main\` for release v${{ steps.new_version.outputs.version }}.

          ### Checklist
          - [ ] All tests passing
          - [ ] Documentation updated
          - [ ] Breaking changes documented (if any)

          After merging, this will automatically:
          - Create git tag v${{ steps.new_version.outputs.version }}
          - Build and push container images" \
            --base main \
            --head release/v${{ steps.new_version.outputs.version }}