post_release_version_bump.yml

name: Post Release - Prepare Main for Next Development Cycle

on:
  workflow_dispatch:
    inputs:
      version:
        description: 'Version number (e.g., 1.0.1)'
        required: true

permissions:
  contents: write
  pull-requests: write

jobs:
  check-version:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout main
        uses: actions/checkout@v2
        with:
          ref: main
          fetch-depth: 0

      - name: Extract Major.Minor Version and setup Env variable
        run: |
          echo "VERSION=${{ github.event.inputs.version }}" >> $GITHUB_ENV
          echo "MAJOR_MINOR=$(echo ${{ github.event.inputs.version }} | sed -E 's/([0-9]+\.[0-9]+)\.[0-9]+/\1/')" >> $GITHUB_ENV

      - name: Get current major.minor version from main branch
        id: get_version
        run: |
          CURRENT_VERSION=$(grep '__version__' aws-opentelemetry-distro/src/amazon/opentelemetry/distro/version.py | sed -E 's/__version__ = "([0-9]+\.[0-9]+)\.[0-9]+.*"/\1/')
          echo "CURRENT_MAJOR_MINOR_VERSION=$CURRENT_VERSION" >> $GITHUB_ENV
          
      - name: Compare major.minor version and skip if behind
        if: env.CURRENT_MAJOR_MINOR_VERSION < env.MAJOR_MINOR
        run: |
          echo "Input version behind main's current major.minor version, don't need to update major version"
          exit 1
          

  prepare-main:
    runs-on: ubuntu-latest
    needs: check-version
    steps:
      - name: Setup Git
        uses: actions/checkout@v2
        with:
          fetch-depth: 0

      - name: Configure Git
        run: |
          git config user.name "github-actions"
          git config user.email "github-actions@github.com"

      - name: Extract Major.Minor Version and setup Env variable
        run: |
          echo "VERSION=${{ github.event.inputs.version }}" >> $GITHUB_ENV
          echo "MAJOR_MINOR=$(echo ${{ github.event.inputs.version }} | sed -E 's/([0-9]+\.[0-9]+)\.[0-9]+/\1/')" >> $GITHUB_ENV

      - name: Determine release branch and checkout
        run: |
          RELEASE_BRANCH="release/${MAJOR_MINOR}.x"
          git fetch origin $RELEASE_BRANCH
          git checkout -b "prepare-main-for-next-dev-cycle-${VERSION}" origin/$RELEASE_BRANCH

      - name: Update version to next development version in main
        run: |
          DEV_VERSION="${{ github.event.inputs.version }}.dev0"
          sed -i 's/__version__ = ".*"/__version__ = "'$DEV_VERSION'"/' aws-opentelemetry-distro/src/amazon/opentelemetry/distro/version.py
          VERSION="${{ github.event.inputs.version }}"
          sed -i 's/python:v.*"/python:v'$VERSION'"/' .github/workflows/released_image_scan.yml
          git add aws-opentelemetry-distro/src/amazon/opentelemetry/distro/version.py
          git add .github/workflows/released_image_scan.yml
          git commit -m "Prepare main for next development cycle: Update version to $DEV_VERSION"
          git push --set-upstream origin "prepare-main-for-next-dev-cycle-${VERSION}"

      - name: Create Pull Request to main
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          DEV_VERSION="${{ github.event.inputs.version }}.dev0"
          gh pr create --title "Post release $VERSION: Update version to $DEV_VERSION" \
                       --body "This PR prepares the main branch for the next development cycle by updating the version to $DEV_VERSION and updating the image version to be scanned to the latest released.
          
          This PR should only be merge when release for version v$VERSION is success.
          
          By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice." \
                       --head prepare-main-for-next-dev-cycle-${VERSION} \
                       --base main