gh_grpc_release.yml

# This worklow will create a new GH release according to the current GRPC_VERSION value in variables.sh
# It is triggered after a PR from head "renovate/grpc-major-upgrade" is merged to master.

# 'renovate/grpc-major-upgrade' is a branch created by Renovate when it finds a new gRPC version to update in variables.sh
# Renovate with this worflow allows us to automatically create new releases whenever Google releases a new gRPC version in github.com/grpc/grpc

# All new versions created by this worflow will be suffixed by _0, e.g v1.46_0. At the moment, patches unrelated to the gRPC version (e.g v1.46_1)
# will still be released manually (for now).

# Note that once a new release is created in GH, a separate workflow will take care of releasing new docker images to dockerhub accordingly.

name: Github gRPC Release

on:
  pull_request:
    types:
      - closed
    branches:    
      - 'master'

jobs:
  new_gh_release:
    if: github.event.pull_request.merged == true && github.head_ref == 'renovate/grpc-major-upgrade'
    runs-on: ubuntu-latest
    outputs:
      version: ${{ steps.set_version_as_output.outputs.version }}
    steps:
    # checkout the repo
      - uses: actions/checkout@v3
        with:
          submodules: true
    # install pcregrep to help extrat the version from variables.sh
      - name: Install pcregrep
        run: sudo sudo apt-get update -y && sudo apt-get install -y pcregrep
      - name: Get version name
        run: |
          VER=$(pcregrep -o1 "^GRPC_VERSION=\\$\{GRPC_VERSION:-(.*?)\\}$" variables.sh)
          # This makes the value accessible from env.Version
          echo "VERSION=v${VER}_0" >> $GITHUB_ENV
      - name: Set version value as output
        id: set_version_as_output
        run: 
          echo ::set-output name=version::${{ env.VERSION }}
      - name: Create new release
        if: success()
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run:
          gh release create ${{ env.VERSION }} --generate-notes --repo $GITHUB_REPOSITORY
  new_docker_release:
    needs: new_gh_release
    uses: ./.github/workflows/docker_release.yml
    with:
      release_version: ${{ needs.new_gh_release.outputs.version }}
    secrets: inherit