update-snapshots.yml

name: Update Playwright Snapshots

on:
  issue_comment:
    types: [created, edited]

permissions:
  contents: write
  pull-requests: write

jobs:
  update-snapshots:
    if: >
      (
        github.event.issue.author_association == 'OWNER' ||
        github.event.issue.author_association == 'COLLABORATOR' ||
        github.event.issue.author_association == 'MEMBER'
      ) && github.event.issue.pull_request && contains(github.event.comment.body, 'please update snapshots')
    runs-on: ubuntu-latest

    steps:
      - name: React to the triggering comment
        run: |
          gh api repos/${{ github.repository }}/issues/comments/${{ github.event.comment.id }}/reactions --raw-field 'content=+1'
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

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

      - name: Get PR Info
        id: pr
        env:
          PR_NUMBER: ${{ github.event.issue.number }}
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          GH_REPO: ${{ github.repository }}
          COMMENT_AT: ${{ github.event.comment.created_at }}
        run: |
          pr="$(gh api /repos/${GH_REPO}/pulls/${PR_NUMBER})"
          head_sha="$(echo "$pr" | jq -r .head.sha)"
          pushed_at="$(echo "$pr" | jq -r .pushed_at)"

          if [[ $(date -d "$pushed_at" +%s) -gt $(date -d "$COMMENT_AT" +%s) ]]; then
              echo "Updating is not allowed because the PR was pushed to (at $pushed_at) after the triggering comment was issued (at $COMMENT_AT)"
              exit 1
          fi

          echo "head_sha=$head_sha" >> $GITHUB_OUTPUT

      - name: Checkout the branch from the PR that triggered the job
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: gh pr checkout ${{ github.event.issue.number }}

      - name: Validate the fetched branch HEAD revision
        env:
          EXPECTED_SHA: ${{ steps.pr.outputs.head_sha }}
        run: |
          actual_sha="$(git rev-parse HEAD)"

          if [[ "$actual_sha" != "$EXPECTED_SHA" ]]; then
              echo "The HEAD of the checked out branch ($actual_sha) differs from the HEAD commit available at the time when trigger comment was submitted ($EXPECTED_SHA)"
              exit 1
          fi

      - name: Base Setup
        uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1

      - name: Install extension dependencies and build the extension
        run: ./scripts/install.sh

      - uses: jupyterlab/maintainer-tools/.github/actions/update-snapshots@v1
        with:
          github_token: ${{ secrets.GITHUB_TOKEN }}
          start_server_script: 'null'
          test_folder: packages/jupyter-ai/ui-tests
          npm_client: jlpm

      - name: Comment back on the PR
        run: |
          hub api repos/${{ github.repository }}/issues/${{ github.event.inputs.number || github.event.issue.number }}/comments --raw-field 'body=Playwright snapshots updated.'
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}