# GitHub Actions workflow to create a pull request to update the bazel central
# registry after a successful release.
#
# Usage:
#   1. Fork bazelbuild/bazel-central-registry to your org or personal account.
#   2. Set the workflow env variables below (see instructions for each variable).
#   3. Update the following files in .github/workflows/bcr to be relevant for your
#      project:
#         - presubmit.yml
#         - metadata.template.json
#         - source.template.json
#      See https://docs.bazel.build/versions/main/bzlmod.html#bazel-central-registry
#      for more information.
#   4. A PR will be posted from your fork to bazelbuild/bazel-central-registry
#      with an updated module entry after a successful release.

name: BCR

on:
  release:
    types: [published]

env:
  # Bazel central registry to post a pull request to.
  BCR: bazelbuild/bazel-central-registry

  # Fork of the bazel central registery to push the pull request branch to
  BCR_FORK: aspect-build/bazel-central-registry

  # String containing submitters to tag
  SUBMITTERS: "@alexeagle, @kormide"

jobs:
  bcr-pull-request:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/setup-node@v2
        with:
          node-version: "14"
      - name: Get the tag
        id: get_tag
        run: echo ::set-output name=TAG::${GITHUB_REF#refs/tags/}
      - name: Checkout this repo to access scripts
        uses: actions/checkout@v3
      - name: Checkout the released version of this repo
        uses: actions/checkout@v3
        with:
          ref: ${{ env.GITHUB_REF }}
          path: project
      - name: Checkout bcr
        uses: actions/checkout@v3
        with:
          repository: ${{ env.BCR }}
          path: bcr
      - uses: tibdex/github-app-token@v1
        id: generate-token
        with:
          app_id: ${{ secrets.BCR_APP_ID }}
          private_key: ${{ secrets.BCR_APP_PRIVATE_KEY }}
      - name: Create bcr entry
        run: node .github/workflows/create-bcr-entry.mjs project bcr $GITHUB_REPOSITORY ${{ steps.get_tag.outputs.TAG }}
      - name: Create Pull Request
        id: post_pr
        uses: peter-evans/create-pull-request@v4
        with:
          token: ${{ steps.generate-token.outputs.token }}
          path: bcr
          push-to-fork: ${{ env.BCR_FORK }}
          commit-message: ${{ github.repository }}@${{ steps.get_tag.outputs.TAG }}
          branch: ${{ github.repository }}@${{ steps.get_tag.outputs.TAG }}
          title: ${{ github.repository }}@${{ steps.get_tag.outputs.TAG }}
          body: |
            [Automated] Publish ${{ github.repository }}@${{ steps.get_tag.outputs.TAG }}.

            Submitters:
            ${{ env.SUBMITTERS }}
      - name: Echo PR url
        run: echo ${{ steps.post_pr.outputs.pull-request-url }}