create_release_branch.yml

name: Create Release Branch

on:
  workflow_dispatch:
    inputs:
      version_override:
        description: 'Version override'
        required: false
        type: string
  schedule:
    # Every day at 05:00 EST (10:00 UTC)
    - cron: '0 10 * * *'

jobs:
  create-release:
    runs-on: ubuntu-latest
    steps:
      - name: Set git credentials
        run: |
          /usr/bin/git config --global --add url."https://${{ secrets.AFRESHY_PAT }}:x-oauth-basic@github".insteadOf ssh://git@github
          /usr/bin/git config --global --add url."https://${{ secrets.AFRESHY_PAT }}:x-oauth-basic@github".insteadOf https://github
          /usr/bin/git config --global --add url."https://${{ secrets.AFRESHY_PAT }}:x-oauth-basic@github".insteadOf git@github

      - name: Checkout
        uses: actions/checkout@v4
        with:
          token: ${{ secrets.AFRESHY_PAT }}

      - name: Get latest Firebase release
        id: latest_firebase_release
        run: |
          latest_firebase_release=$(gh release view --repo $REPO --json tagName --jq '.tagName')

          if [ -z "$VERSION_OVERRIDE" ]; then
            echo "::set-output name=latest_firebase_release::${latest_firebase_release}"
          else
            echo "::set-output name=latest_firebase_release::${VERSION_OVERRIDE}"
          fi
        env:
          REPO: firebase/firebase-ios-sdk
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          VERSION_OVERRIDE: ${{ inputs.version_override }}

      - name: Check if branch exists
        id: check_branch
        run: |
          git fetch origin

          if git ls-remote --heads origin "$BRANCH" | grep -q "$BRANCH"; then
            echo "::set-output name=branch_exists::true"
          else
            echo "::set-output name=branch_exists::false"
          fi
        env:
          BRANCH: release/${{ steps.latest_firebase_release.outputs.latest_firebase_release }}      

      - name: Create release branch
        if: steps.check_branch.outputs.branch_exists == 'false'
        run: |
          git checkout -b $BRANCH
          git push origin $BRANCH
        env:
          BRANCH: release/${{ steps.latest_firebase_release.outputs.latest_firebase_release }}