create-dev-branch.yaml

name: "Create Development Branch"
run-name: Create a new development branch

on:
  workflow_dispatch:
    inputs:
      bump-type:
        description: "bump type"
        required: true
        type: choice
        default: "major"
        options:
          - "major"
          - "minor"

jobs:
  create-branch:
    runs-on: ubuntu-24.04
    steps:
      # validate branch
      - name: Validate running branch
        run: |
          # we want to stop if this is not running on development branch
          [[ "${{github.ref_name}}" =~ ^development/[0-9.]+$ ]] || exit 1
      # create app token
      - uses: actions/create-github-app-token@v1
        id: app-token
        with:
          app-id: ${{ vars.ACTIONS_APP_ID }}
          private-key: ${{ secrets.ACTIONS_APP_PRIVATE_KEY }}
      # checkout
      - name: Checkout
        uses: actions/checkout@v4
        with:
          fetch-depth: 0
          token: ${{ steps.app-token.outputs.token }}
      # calculate new version
      - name: Calculate new version
        run: |
          source VERSION

          if [[ "${{ inputs.bump-type }}" == "major" ]]; then
            NEW_VERSION_MAJOR=$(($VERSION_MAJOR+1))
            NEW_VERSION_MINOR=0
          else
            NEW_VERSION_MAJOR=$VERSION_MAJOR
            NEW_VERSION_MINOR=$(($VERSION_MINOR+1))
          fi

          NEW_SHORT_VERSION="$NEW_VERSION_MAJOR.$NEW_VERSION_MINOR"

          echo "NEW_SHORT_VERSION=$NEW_SHORT_VERSION" >> $GITHUB_ENV
          echo "NEW_VERSION_MAJOR=$NEW_VERSION_MAJOR" >> $GITHUB_ENV
          echo "NEW_VERSION_MINOR=$NEW_VERSION_MINOR" >> $GITHUB_ENV
      # calculate new branch name
      - name: Calculate new branch name
        run: |
          NEW_BRANCH_NAME="development/${{ env.NEW_SHORT_VERSION }}"
          INIT_BRANCH_NAME="feature/init-dev-${{ env.NEW_SHORT_VERSION }}"

          echo "NEW_BRANCH_NAME=$NEW_BRANCH_NAME" >> $GITHUB_ENV
          echo "INIT_BRANCH_NAME=$INIT_BRANCH_NAME" >> $GITHUB_ENV
      # create development branch
      - name: Create new branch
        run: |
          if git ls-remote --exit-code --heads origin refs/heads/${{ env.NEW_BRANCH_NAME }}; then
              echo "${{ env.NEW_BRANCH_NAME }} already exists, exiting"
              exit 1
          fi
          git checkout -b "${{ env.NEW_BRANCH_NAME }}"
      # push development branch
      - name: Push new branch
        run: |
          git config --global user.email ${{ github.actor }}@scality.com
          git config --global user.name ${{ github.actor }}
          git push --set-upstream origin ${{ env.NEW_BRANCH_NAME }}
      # create new branch
      - name: Create an init branch
        run: |
          git checkout -b "${{ env.INIT_BRANCH_NAME }}"
      # find mentions of new version: warn user
      - name: Look for important messages
        id: warn_user
        run: |
          link="https://github.com/${{ github.repository }}/blob/${{ env.NEW_BRANCH_NAME }}/"
          {
            echo 'COMMENT<<EOF'
            echo "# Mentions of ${{ env.NEW_SHORT_VERSION }} in ${{ env.NEW_BRANCH_NAME }}"
            git grep -rHFn "${{ env.NEW_SHORT_VERSION }}" -- ':!*.svg' | sed -E "s;(.*):([0-9]+):.*;$link\1#L\2;"
            echo EOF
          } >> "$GITHUB_ENV"
      # bump version
      - name: Bump VERSION
        run: |
          cat << EOF > VERSION
          VERSION_MAJOR=${{ env.NEW_VERSION_MAJOR }}
          VERSION_MINOR=${{ env.NEW_VERSION_MINOR }}
          VERSION_PATCH=0
          VERSION_SUFFIX=-dev
          EOF
      # edit CHANGELOG
      - name: add new entry to changelog
        run: |
          sed -i "s/# CHANGELOG/# CHANGELOG\n\n## Release ${{ env.NEW_SHORT_VERSION }}.0 (in development)/" CHANGELOG.md
      # edit cron jobs
      - name: bump version in cron jobs
        run: |
          current=$(grep current .github/workflows/crons.yaml | sed -E "s/\s*# current=//")
          old=$(grep old .github/workflows/crons.yaml | sed -E "s/\s*# old=//")
          sed -i "s/$current/${{ env.NEW_SHORT_VERSION }}/g" .github/workflows/crons.yaml
          sed -i "s/$old/$current/g" .github/workflows/crons.yaml
      # push
      - name: push to init branch
        run: |
          git add VERSION
          git add CHANGELOG.md
          git add .github/workflows/crons.yaml
          git commit -m "Update version to ${{ env.NEW_SHORT_VERSION }}"
          git push --set-upstream origin ${{ env.INIT_BRANCH_NAME }}
      # create PR
      - name: create PR
        uses: actions/github-script@v7
        with:
          script: |
            const pr = await github.rest.pulls.create({
              owner: context.repo.owner,
              repo: context.repo.repo,
              head: "${{ env.INIT_BRANCH_NAME }}",
              base: "${{ env.NEW_BRANCH_NAME }}",
              title: "Initialize ${{ env.NEW_BRANCH_NAME }} branch"
            });

            await github.rest.issues.createComment({
              issue_number: pr.data.number,
              owner: context.repo.owner,
              repo: context.repo.repo,
              body: `/approve`
            });

            await github.rest.issues.createComment({
              issue_number: pr.data.number,
              owner: context.repo.owner,
              repo: context.repo.repo,
              body: `${{ env.COMMENT }}`
            });