handle-pr-comment.yml

name: Handle a PR comment
run-name: Handle slash command in a PR comment`

on:
  # GitGitGadget's GitHub App is expected to trigger this on `issue_comment` events
  # that have the `action` set to `created` or `edited`
  workflow_dispatch:
    inputs:
      pr-comment-url:
        description: 'URL of the PR comment to handle'
        required: true

env:
  PR_COMMENT_URL: ${{ inputs.pr-comment-url }}

concurrency:
  group: ${{ github.workflow }}-${{ inputs.pr-comment-url }}

jobs:
  handle-pr-comment:
    runs-on: ubuntu-latest
    if: vars.CONFIG != ''

    steps:
    - uses: actions/create-github-app-token@v1
      id: pr-repo-token
      with:
        app-id: ${{ secrets.GITGITGADGET_GITHUB_APP_ID }}
        private-key: ${{ secrets.GITGITGADGET_GITHUB_APP_PRIVATE_KEY }}
        owner: ${{ fromJSON(vars.CONFIG).repo.owner }}
        repositories: ${{ fromJSON(vars.CONFIG).repo.name }}
    - uses: actions/create-github-app-token@v1
      if: ${{ contains(fromJSON(vars.CONFIG).repo.owners, fromJSON(vars.CONFIG).repo.baseOwner) }}
      id: upstream-repo-token
      with:
        app-id: ${{ secrets.GITGITGADGET_GIT_GITHUB_APP_ID }}
        private-key: ${{ secrets.GITGITGADGET_GIT_GITHUB_APP_PRIVATE_KEY }}
        owner: ${{ fromJSON(vars.CONFIG).repo.baseOwner }}
        repositories: ${{ fromJSON(vars.CONFIG).repo.name }}
    - uses: actions/create-github-app-token@v1
      if: ${{ contains(fromJSON(vars.CONFIG).repo.owners, fromJSON(vars.CONFIG).repo.testOwner) }}
      id: test-repo-token
      with:
        app-id: ${{ secrets.GITGITGADGET_GIT_GITHUB_APP_ID }}
        private-key: ${{ secrets.GITGITGADGET_GIT_GITHUB_APP_PRIVATE_KEY }}
        owner: ${{ fromJSON(vars.CONFIG).repo.testOwner }}
        repositories: ${{ fromJSON(vars.CONFIG).repo.name }}
    - name: create a check run
      id: create-check-run
      run: |
        set -x
        title="Handle PR comment"
        summary="Handling PR comment $PR_COMMENT_URL"
        details_url="${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}"
        text="This handles $PR_COMMENT_URL, see $details_url for details."
        echo "title=$title" >> $GITHUB_OUTPUT
        echo "summary=$summary" >> $GITHUB_OUTPUT
        echo "text=$text" >> $GITHUB_OUTPUT

        PR_NUMBER="${PR_COMMENT_URL%#*}" # skip the suffix with the comment ID
        PR_NUMBER="${PR_NUMBER##*/}" # skip the prefix before the PR number
        PR_REPO="${PR_COMMENT_URL%/pull/$PR_NUMBER*#*}" # skip the suffix including the PR number
        PR_REPO="${PR_REPO#https://*/}"

        export GH_TOKEN="${{ secrets.GITHUB_TOKEN }}"
        eval "$(gh api repos/$PR_REPO/pulls/$PR_NUMBER \
          --jq '"head_sha=\(.head.sha) && repo=\(.base.repo.full_name)"')"
        echo "head_sha=$head_sha" >> $GITHUB_OUTPUT
        echo "repo=$repo" >> $GITHUB_OUTPUT

        export GH_TOKEN="$(case "$repo" in
          '${{ fromJSON(vars.CONFIG).repo.owner }}/${{ fromJSON(vars.CONFIG).repo.name }}') echo "${{ steps.pr-repo-token.outputs.token }}";;
          '${{ fromJSON(vars.CONFIG).repo.baseOwner }}/${{ fromJSON(vars.CONFIG).repo.name }}') echo "${{ steps.upstream-repo-token.outputs.token }}";;
          '${{ fromJSON(vars.CONFIG).repo.testOwner }}/${{ fromJSON(vars.CONFIG).repo.name }}') echo "${{ steps.test-repo-token.outputs.token }}";;
          *) echo "${{ secrets.GITHUB_TOKEN }}";;
          esac
        )"
        eval "$(gh api repos/$repo/check-runs -X POST \
          -f name='handle_pr_comment' \
          -f head_sha="$head_sha" \
          -f status='in_progress' \
          -f details_url="$details_url" \
          -f "output[title]=$title" \
          -f "output[summary]=$summary" \
          -f "output[text]=$text" \
          --jq '"check_run_id=\(.id)"')"
        echo "check_run_id=$check_run_id" >> $GITHUB_OUTPUT
    - uses: gitgitgadget/gitgitgadget/handle-pr-comment@v1
      with:
        config: ${{ vars.CONFIG }}
        pr-repo-token: ${{ steps.pr-repo-token.outputs.token }}
        upstream-repo-token: ${{ steps.upstream-repo-token.outputs.token }}
        test-repo-token: ${{ steps.test-repo-token.outputs.token }}
        smtp-host: '${{ fromJSON(vars.CONFIG).mail.smtpHost }}'
        smtp-user: '${{ fromJSON(vars.CONFIG).mail.smtpUser }}'
        smtp-pass: "${{ secrets.GITGITGADGET_SMTP_PASS }}"
        pr-comment-url: ${{ env.PR_COMMENT_URL }}
    - name: update the check run
      if: always() && steps.create-check-run.outputs.check_run_id != ''
      run: |
        export GH_TOKEN="$(case "${{ steps.create-check-run.outputs.repo }}" in
          '${{ fromJSON(vars.CONFIG).repo.owner }}/${{ fromJSON(vars.CONFIG).repo.name }}') echo "${{ steps.pr-repo-token.outputs.token }}";;
          '${{ fromJSON(vars.CONFIG).repo.baseOwner }}/${{ fromJSON(vars.CONFIG).repo.name }}') echo "${{ steps.upstream-repo-token.outputs.token }}";;
          '${{ fromJSON(vars.CONFIG).repo.testOwner }}/${{ fromJSON(vars.CONFIG).repo.name }}') echo "${{ steps.test-repo-token.outputs.token }}";;
          *) echo "${{ secrets.GITHUB_TOKEN }}";;
          esac
        )"
        gh api repos/${{ steps.create-check-run.outputs.repo }}/check-runs/${{ steps.create-check-run.outputs.check_run_id }} \
          -X PATCH \
          -f status='completed' \
          -f conclusion='${{ job.status }}' \
          -f 'output[title]=${{ steps.create-check-run.outputs.title }}' \
          -f 'output[summary]=${{ steps.create-check-run.outputs.summary }}' \
          -f 'output[text]=${{ steps.create-check-run.outputs.text }}'