pr-migration-warn.yml

name: Warn about intel/llvm migration

on:
  schedule:
    # Runs at 1:00 and 13:00 UTC daily
    - cron: '0 1,13 * * *'
  workflow_dispatch:

permissions:
  contents: read

jobs:
  label-and-comment:
    runs-on: ubuntu-latest
    permissions:
      pull-requests: write
      issues: write

    steps:
      - name: Label and comment on open PRs
        uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          script: |
            const { owner, repo } = context.repo;
            const label = "auto-close";

            // Fetch all open PRs
            const open_pulls = await github.paginate(
              github.rest.pulls.list,
              { owner, repo, state: "open" }
            );

            for (const pr of open_pulls) {
              const pr_number = pr.number;

              // Get current labels on the PR
              const { data: labels } = await github.rest.issues.listLabelsOnIssue({
                owner,
                repo,
                issue_number: pr_number
              });

              // Get issue events
              const { data: events } = await github.rest.issues.listEvents({
                owner,
                repo,
                issue_number: pr_number
              });

              const hasLabelNow = labels.some(l => l.name === label);
              const hadLabelBefore = events.some(e => e.event === "labeled" && e.label.name === label);

              if (hasLabelNow || hadLabelBefore) {
                console.log(`PR #${pr_number} already had or currently has the '${label}' label. Skipping.`);
                continue;
              }

              // Add the label 
              await github.rest.issues.addLabels({
                owner,
                repo,
                issue_number: pr_number,
                labels: [label]
              });

              const commentBody = 
                  "# Unified Runtime -> intel/llvm Repo Move Notice\n" +
                  "## Information\n" +
                  "The source code of Unified Runtime has been moved to [intel/llvm](https://github.com/intel/llvm) under the [unified-runtime](https://github.com/intel/llvm/tree/sycl/unified-runtime) top-level directory,\n" +
                  "all future development will now be carried out there. This was done in https://github.com/intel/llvm/pull/17043.\n\n" +
                  "The code will be mirrored to [oneapi-src/unified-runtime](https://github.com/oneapi-src/unified-runtime) and the specification will continue to be hosted at [oneapi-src.github.io/unified-runtime](https://oneapi-src.github.io/unified-runtime/).\n\n" +
                  "The [contribution guide](https://oneapi-src.github.io/unified-runtime/core/CONTRIB.html) will be updated with new instructions for contributing to Unified Runtime.\n\n" +
                  "## PR Migration\n" +
                  "All open PRs including this one will be marked with the `auto-close` [label](https://github.com/oneapi-src/unified-runtime/labels/auto-close) and shall be **automatically closed after 30 days**.\n\n" +
                  "Should you wish to continue with your PR **you will need to migrate it** to [intel/llvm](https://github.com/intel/llvm/tree/sycl/unified-runtime).\n" +
                  "We have provided a [script to help automate this process](https://github.com/oneapi-src/unified-runtime/blob/main/scripts/move-pr-to-intel-llvm.py).\n\n" +
                  "If your PR should remain open and not be closed automatically, you can remove the `auto-close` label.\n\n" +
                  "---\n" +
                  "*This is an automated comment.*";

              // Add a comment about the migration process
              await github.rest.issues.createComment({
                owner,
                repo,
                issue_number: pr_number,
                body: commentBody
              });

              console.log(`Added label '${label}' and commented on PR #${pr_number}`);
            }