pr.yaml

name: Pull Request Flow

on:
  pull_request_target:
    types: [assigned, opened, synchronize, reopened]
# tags-ignore and/or paths does not work with pull_request_target
#    tags-ignore:
#      - "automated pr"
#    paths:
#      - "packages/**"

jobs:
  notify:
    name: Notify snapshot update
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v2
        with:
          fetch-depth: 10
          submodules: true

      - name: List up snapshots
        id: snapshots
        run: |
            echo "::set-output name=snapshots::$(ls -1 snapshot-*.opam | sed -e 's/\.opam$//' | sort -n | tr '\n' ' ')"

      - name: Update the PR body
        uses: actions/github-script@v2
        env:
          SNAPSHOTS: ${{ steps.snapshots.outputs.snapshots }}
        with:
          github-token: ${{ github.token }}
          script: |
            const pullRequestId = {
              owner: context.repo.owner,
              repo: context.repo.repo,
              pull_number: context.issue.number
            };
            const pull_request = await github.pulls.get(pullRequestId);
            const actionHeader = '\n# Automatic follow-ups\n';
            const body = (pull_request.data.body || '').replace(/\r?\n/g, '\n');
            console.log('body', body);
            const splitted = body.split(actionHeader);
            const actionSectionMessage = 'Choose follow-up actions.  Do not write anything after this section.';
            const actions =
              process.env.SNAPSHOTS
                .split(' ')
                .filter((snapshot) => snapshot)
                .map((snapshot) => `- Add to snapshot \`${snapshot}\``);
            const replacedBody = `${splitted[0]}${actionHeader}${actionSectionMessage}\n${actions.join('\n')}`;
            console.log('replacedBody', replacedBody);
            await github.pulls.update({
              ...pullRequestId,
              body: replacedBody
            });