ci-patchwork-trigger.yml

# SPDX-License-Identifier: GPL-2.0-or-later
# Copyright (c) 2026 Andrea Cervesato <andrea.cervesato@suse.com>
#
# Poll Patchwork for new LTP patch series and dispatch a review
# workflow for each one that has not been reviewed yet.

name: "Patchwork review trigger"

on:
  workflow_dispatch:
  schedule:
    - cron: '0 * * * *'

permissions:
  actions: write
  contents: read

env:
  PATCHWORK_URL: https://patchwork.ozlabs.org
  # Fallback lookback in seconds when no previous successful run exists
  PATCHWORK_SINCE: 4500
  # Maximum lookback in seconds (24h) to avoid flooding the API
  PATCHWORK_MAX_SINCE: 86400

jobs:
  check:
    runs-on: ubuntu-latest
    steps:
      - name: Install pwclient
        run: |
          pip install 'pwclient @ git+https://github.com/getpatchwork/pwclient'

          mkdir -p ~/.config
          cat > ~/.pwclientrc <<EOF
          [options]
          default = ltp

          [ltp]
          backend = rest
          url = $PATCHWORK_URL/api/
          EOF

      - name: Get last successful run timestamp
        id: last_run
        uses: actions/github-script@v7
        with:
          script: |
            const runs = await github.rest.actions.listWorkflowRuns({
              owner: context.repo.owner,
              repo: context.repo.repo,
              workflow_id: 'ci-patchwork-trigger.yml',
              status: 'success',
              per_page: 1,
              exclude_pull_requests: true,
            });

            if (runs.data.workflow_runs.length > 0) {
              const since = runs.data.workflow_runs[0].run_started_at;
              console.log(`Last successful run: ${since}`);
              core.exportVariable('PATCHWORK_SINCE_DATE', since);
            } else {
              console.log('No previous successful run found, using default lookback');
            }

      - name: Fetch new series from Patchwork
        id: fetch
        run: |
          current_time=$(date +%s)

          if [ -n "$PATCHWORK_SINCE_DATE" ]; then
            since_time=$(date -u -d "$PATCHWORK_SINCE_DATE" +%s)
            max_since_time=$((current_time - PATCHWORK_MAX_SINCE))

            if [ "$since_time" -lt "$max_since_time" ]; then
              since_time=$max_since_time
            fi
          else
            since_time=$((current_time - PATCHWORK_SINCE))
          fi

          since=$(date -u -d @$since_time +"%Y-%m-%dT%H:%M:%SZ")

          pwclient event-list -p ltp -c series-completed \
            --since "$since" -f '%{series_id}' > series.txt

          cat series.txt

      - name: Filter already-reviewed series
        id: filter
        run: |
          touch dispatch.txt

          while read -r series_id; do
            [ -z "$series_id" ] && continue

            patch_ids=$(pwclient list -p ltp -S "$series_id" -f '%{id}')

            reviewed=false
            for patch_id in $patch_ids; do
              context=$(pwclient check-get -p ltp "$patch_id" -f '%{context}' 2>/dev/null || true)
              if echo "$context" | grep -q "copilot-review"; then
                reviewed=true
                break
              fi
            done

            if [ "$reviewed" = false ]; then
              echo "$series_id" >> dispatch.txt
            fi
          done < series.txt

          echo "count=$(wc -l < dispatch.txt | tr -d ' ')" >> "$GITHUB_OUTPUT"
          cat dispatch.txt

      - name: Dispatch review workflows
        if: steps.filter.outputs.count != '0'
        uses: actions/github-script@v7
        with:
          script: |
            const fs = require('fs');
            const lines = fs.readFileSync('dispatch.txt', 'utf8').trim().split('\n');

            for (const line of lines) {
              const series_id = line.trim();
              if (!series_id) continue;

              console.log(`Dispatching review for series ${series_id}`);
              await github.rest.actions.createWorkflowDispatch({
                owner: context.repo.owner,
                repo: context.repo.repo,
                ref: context.ref,
                workflow_id: 'ci-copilot-review.yml',
                inputs: {
                  SERIES_ID: series_id,
                }
              });
            }