Use bundled Qwen Code for PR review automation

.github/scripts/act-smoke-qwen-review.sh

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+#!/usr/bin/env bash
+set -euo pipefail
+
+repo_root="$(git rev-parse --show-toplevel)"
+cd "$repo_root"
+
+usage() {
+  cat >&2 <<'EOF'
+Usage:
+  .github/scripts/act-smoke-qwen-review.sh [pr-number] [case]
+
+Cases:
+  pr-edited            pull_request_target.edited body change; runs Design Gate only
+  design-gate-comment  issue_comment "@qwen /design-gate"; runs Design Gate only
+  oversized            pull_request_target.edited with a low size threshold; stops at size gate
+  all                  runs all safe local act cases above
+
+The smoke cases run with ACT=true, do not post PR comments, and do not run the
+deep /review action.
+EOF
+}
+
+if ! command -v colima >/dev/null 2>&1; then
+  echo "colima is required. Install it with: brew install colima" >&2
+  exit 1
+fi
+
+if ! command -v docker >/dev/null 2>&1; then
+  echo "docker CLI is required. Install it with: brew install docker" >&2
+  exit 1
+fi
+
+if ! docker info >/dev/null 2>&1; then
+  echo "Starting Colima for local GitHub Actions smoke..."
+  colima start --cpu 2 --memory 4 --disk 20
+fi
+
+if ! command -v act >/dev/null 2>&1; then
+  echo "act is required. Install it with: brew install act" >&2
+  exit 1
+fi
+
+pr_number="${1:-}"
+case_name="${2:-pr-edited}"
+if [ -z "$pr_number" ] && command -v gh >/dev/null 2>&1; then
+  pr_number="$(gh pr view --json number --jq '.number' 2>/dev/null || true)"
+fi
+
+if [ -z "$pr_number" ]; then
+  usage
+  echo "Could not infer a PR number from the current branch." >&2
+  exit 1
+fi
+
+token="${GITHUB_TOKEN:-}"
+if [ -z "$token" ] && command -v gh >/dev/null 2>&1; then
+  token="$(gh auth token 2>/dev/null || true)"
+fi
+
+if [ -z "$token" ]; then
+  echo "GITHUB_TOKEN is required for gh pr view/diff calls inside the workflow." >&2
+  echo "Set GITHUB_TOKEN or authenticate gh before running this smoke." >&2
+  exit 1
+fi
+
+tmp_dir="$(mktemp -d)"
+log_dir="${ACT_SMOKE_LOG_DIR:-.qwen/tmp/act-smoke/$(date +%Y%m%d-%H%M%S)}"
+mkdir -p "$log_dir"
+
+secret_file="$tmp_dir/secrets"
+chmod 700 "$tmp_dir"
+printf 'GITHUB_TOKEN=%s\n' "$token" > "$secret_file"
+chmod 600 "$secret_file"
+
+cleanup_generated_files() {
+  rm -f \
+    qwen-pr-review-size-comment.md \
+    qwen-pr-review-fork-comment.md \
+    qwen-design-gate-override-comment.md \
+    .qwen/tmp/qwen-review-pr-"$pr_number"-shape.json \
+    .qwen/tmp/qwen-review-pr-"$pr_number"-history.json \
+    .qwen/tmp/qwen-review-pr-"$pr_number"-design-gate.json \
+    .qwen/tmp/qwen-review-pr-"$pr_number"-design-gate-comment.md \
+    .qwen/tmp/qwen-review-pr-"$pr_number"-design-gate-prompt.md
+}
+
+trap 'rm -rf "$tmp_dir"; cleanup_generated_files' EXIT
+
+platform_args=()
+case "$(uname -m)" in
+  arm64|aarch64)
+    platform_args=(--container-architecture linux/arm64)
+    ;;
+esac
+
+write_event() {
+  local name="$1"
+  local event_file="$2"
+
+  case "$name" in
+    pr-edited|oversized)
+      cat > "$event_file" <<JSON
+{
+  "action": "edited",
+  "changes": {
+    "body": {
+      "from": "previous body"
+    }
+  },
+  "pull_request": {
+    "number": $pr_number,
+    "author_association": "MEMBER"
+  },
+  "repository": {
+    "full_name": "${GITHUB_REPOSITORY:-QwenLM/qwen-code}"
+  },
+  "sender": {
+    "login": "${GITHUB_ACTOR:-local-act-smoke}"
+  }
+}
+JSON
+      ;;
+    design-gate-comment)
+      cat > "$event_file" <<JSON
+{
+  "action": "created",
+  "issue": {
+    "number": $pr_number,
+    "pull_request": {
+      "url": "https://api.github.com/repos/${GITHUB_REPOSITORY:-QwenLM/qwen-code}/pulls/$pr_number"
+    }
+  },
+  "comment": {
+    "body": "@qwen /design-gate",
+    "author_association": "MEMBER"
+  },
+  "repository": {
+    "full_name": "${GITHUB_REPOSITORY:-QwenLM/qwen-code}"
+  },
+  "sender": {
+    "login": "${GITHUB_ACTOR:-local-act-smoke}"
+  }
+}
+JSON
+      ;;
+    *)
+      usage
+      echo "Unknown smoke case: $name" >&2
+      exit 1
+      ;;
+  esac
+}
+
+event_name_for_case() {
+  case "$1" in
+    pr-edited|oversized)
+      printf 'pull_request_target'
+      ;;
+    design-gate-comment)
+      printf 'issue_comment'
+      ;;
+  esac
+}
+
+max_lines_for_case() {
+  case "$1" in
+    oversized)
+      printf '100'
+      ;;
+    *)
+      printf '50000'
+      ;;
+  esac
+}
+
+summarize_log() {
+  local name="$1"
+  local log_file="$2"
+
+  echo "----- $name summary -----"
+  grep -E 'Run Main (Resolve PR context|Check PR size|Generate PR shape|Scan review history|Run Design Gate)|::set-output:: (should_run_review|gate_only|bypass_design_gate|should_review|status)=|Review scope:|Design Gate status:|Job succeeded|Job failed|Failure -' "$log_file" || true
+  echo "Log: $log_file"
+}
+
+run_case() {
+  local name="$1"
+  local event_file="$tmp_dir/$name.json"
+  local log_file="$log_dir/$name.log"
+  local event_name
+  local max_lines
+
+  event_name="$(event_name_for_case "$name")"
+  max_lines="$(max_lines_for_case "$name")"
+  write_event "$name" "$event_file"
+  cleanup_generated_files
+
+  echo "===== Running act smoke case: $name ($event_name) ====="
+  if act "$event_name" \
+    --bind \
+    -W .github/workflows/qwen-code-pr-review.yml \
+    -j review-pr \
+    -e "$event_file" \
+    -P ubuntu-latest="${ACT_UBUNTU_IMAGE:-catthehacker/ubuntu:act-latest}" \
+    --var QWEN_PR_REVIEW_MODEL=local-act-smoke \
+    --var QWEN_PR_REVIEW_MAX_CHANGED_LINES="$max_lines" \
+    --var QWEN_DESIGN_GATE_LLM=false \
+    --env ACT=true \
+    --secret-file "$secret_file" \
+    "${platform_args[@]}" 2>&1 | tee "$log_file"; then
+    summarize_log "$name" "$log_file"
+  else
+    summarize_log "$name" "$log_file"
+    exit 1
+  fi
+}
+
+case "$case_name" in
+  all)
+    run_case pr-edited
+    run_case design-gate-comment
+    run_case oversized
+    ;;
+  pr-edited|design-gate-comment|oversized)
+    run_case "$case_name"
+    ;;
+  *)
+    usage
+    echo "Unknown smoke case: $case_name" >&2
+    exit 1
+    ;;
+esac

.github/scripts/design-gate.mjs

@@ -0,0 +1,98 @@
+#!/usr/bin/env node
+
+import {
+  parseArgs,
+  readJson,
+  requireArg,
+  run,
+  writeJson,
+  writeText,
+} from './lib/cli.mjs';
+import { loadAnchors } from './lib/anchors.mjs';
+import {
+  buildDesignGateLlmPrompt,
+  evaluateDesignGate,
+  formatProcessComment,
+  formatPromptAppend,
+} from './lib/design-gate-core.mjs';
+import { runQwenJson } from './lib/llm.mjs';
+
+async function maybeRunLlm({ pr, shape, history, anchors }) {
+  if (process.env.QWEN_DESIGN_GATE_LLM !== 'true') {
+    return { findings: [] };
+  }
+
+  try {
+    const result = await runQwenJson({
+      prompt: buildDesignGateLlmPrompt({ pr, shape, history, anchors }),
+    });
+    return result.json && Array.isArray(result.json.findings)
+      ? result.json
+      : { findings: [] };
+  } catch (error) {
+    return {
+      findings: [
+        {
+          gate: 'product_direction',
+          severity: 'advisory',
+          message: `Design Gate LLM check skipped: ${error.message}`,
+          citations: [],
+        },
+      ],
+    };
+  }
+}
+
+async function main() {
+  const args = parseArgs();
+  const repo = requireArg(args, 'repo');
+  const prNumber = requireArg(args, 'pr');
+  console.log('Design Gate: reading PR shape');
+  const shape = await readJson(requireArg(args, 'shape'));
+  console.log('Design Gate: reading history scan');
+  const history = await readJson(requireArg(args, 'history'), { findings: [] });
+  const out = requireArg(args, 'out');
+
+  console.log('Design Gate: resolving PR metadata');
+  const pr =
+    (await readJson(args['pr-json'], undefined)) ??
+    JSON.parse(
+      await run('gh', [
+        'pr',
+        'view',
+        prNumber,
+        '--repo',
+        repo,
+        '--json',
+        'title,body,url,baseRefName,headRefName',
+      ]),
+    );
+
+  console.log('Design Gate: loading anchors');
+  const anchors = await loadAnchors({
+    rootDir: args.root ?? process.cwd(),
+    changedFiles: shape.changed_files,
+  });
+  console.log(
+    `Design Gate: running LLM check (enabled=${process.env.QWEN_DESIGN_GATE_LLM === 'true'})`,
+  );
+  const llm = await maybeRunLlm({ pr, shape, history, anchors });
+  console.log('Design Gate: evaluating findings');
+  const result = evaluateDesignGate({ pr, shape, history, anchors, llm });
+
+  await writeJson(out, result);
+  if (args['process-comment-out']) {
+    await writeText(args['process-comment-out'], formatProcessComment(result));
+  }
+  if (args['prompt-append-out']) {
+    await writeText(args['prompt-append-out'], formatPromptAppend(result));
+  }
+
+  console.log(`Design Gate status: ${result.status}`);
+  console.log(result.summary);
+}
+
+main().catch((error) => {
+  console.error(error.stack ?? error.message);
+  process.exit(1);
+});

.github/scripts/history-scan.mjs

@@ -0,0 +1,41 @@
+#!/usr/bin/env node
+
+import { parseArgs, readJson, requireArg, run, writeJson } from './lib/cli.mjs';
+import { scanHistory } from './lib/gh-search.mjs';
+
+async function main() {
+  const args = parseArgs();
+  const repo = requireArg(args, 'repo');
+  const prNumber = requireArg(args, 'pr');
+  const shape = await readJson(requireArg(args, 'shape'));
+  const out = requireArg(args, 'out');
+
+  const pr =
+    (await readJson(args['pr-json'], undefined)) ??
+    JSON.parse(
+      await run('gh', [
+        'pr',
+        'view',
+        prNumber,
+        '--repo',
+        repo,
+        '--json',
+        'title,body,url',
+      ]),
+    );
+
+  const history = await scanHistory({
+    repo,
+    pr,
+    shape,
+    limit: Number(args.limit ?? 20),
+  });
+
+  await writeJson(out, history);
+  console.log(`Wrote history scan to ${out}`);
+}
+
+main().catch((error) => {
+  console.error(error.stack ?? error.message);
+  process.exit(1);
+});