diff-tour.yml

# This GitHub Action imported from the shared action
# https://github.com/sourcegraph/actions/blob/main/diff-tour/
# Please make fixes / enhancements in the shared action,
# so all of our repos get the benefits

name: Diff Tour link

on:
  pull_request:
    # `edited` fires when the base branch changes; `synchronize` does not
    # `closed` fires on merge and on plain close; either way the comment is
    # updated to a link that survives deleting the head branch
    types: [closed, edited, opened, reopened, synchronize]

# The only permission needed. The action does not check out your repo, so
# `contents: read` is not required, even for private repos
permissions:
  pull-requests: write

jobs:
  diff-tour:
    name: Comment
    runs-on: ubuntu-latest
    # Diff Tour resolves branch names against the base repo, so skip fork PRs
    if: github.event.pull_request.head.repo.full_name == github.repository
    steps:
      - uses: sourcegraph/actions/diff-tour@main