feat: deliver v1.8.0 harness reliability and parity updates

scripts/hooks/quality-gate.js

@@ -0,0 +1,98 @@
+#!/usr/bin/env node
+/**
+ * Quality Gate Hook
+ *
+ * Runs lightweight quality checks after file edits.
+ * - Targets one file when file_path is provided
+ * - Falls back to no-op when language/tooling is unavailable
+ */
+
+'use strict';
+
+const fs = require('fs');
+const path = require('path');
+const { spawnSync } = require('child_process');
+
+const MAX_STDIN = 1024 * 1024;
+let raw = '';
+
+function run(command, args, cwd = process.cwd()) {
+  return spawnSync(command, args, {
+    cwd,
+    encoding: 'utf8',
+    env: process.env,
+  });
+}
+
+function log(msg) {
+  process.stderr.write(`${msg}\n`);
+}
+
+function maybeRunQualityGate(filePath) {
+  if (!filePath || !fs.existsSync(filePath)) {
+    return;
+  }
+
+  const ext = path.extname(filePath).toLowerCase();
+  const fix = String(process.env.ECC_QUALITY_GATE_FIX || '').toLowerCase() === 'true';
+  const strict = String(process.env.ECC_QUALITY_GATE_STRICT || '').toLowerCase() === 'true';
+
+  if (['.ts', '.tsx', '.js', '.jsx', '.json', '.md'].includes(ext)) {
+    // Prefer biome if present
+    if (fs.existsSync(path.join(process.cwd(), 'biome.json')) || fs.existsSync(path.join(process.cwd(), 'biome.jsonc'))) {
+      const args = ['biome', 'check', filePath];
+      if (fix) args.push('--write');
+      const result = run('npx', args);
+      if (result.status !== 0 && strict) {
+        log(`[QualityGate] Biome check failed for ${filePath}`);
+      }
+      return;
+    }
+
+    // Fallback to prettier when installed
+    const prettierArgs = ['prettier', '--check', filePath];
+    if (fix) {
+      prettierArgs[1] = '--write';
+    }
+    const prettier = run('npx', prettierArgs);
+    if (prettier.status !== 0 && strict) {
+      log(`[QualityGate] Prettier check failed for ${filePath}`);
+    }
+    return;
+  }
+
+  if (ext === '.go' && fix) {
+    run('gofmt', ['-w', filePath]);
+    return;
+  }
+
+  if (ext === '.py') {
+    const args = ['format'];
+    if (!fix) args.push('--check');
+    args.push(filePath);
+    const r = run('ruff', args);
+    if (r.status !== 0 && strict) {
+      log(`[QualityGate] Ruff check failed for ${filePath}`);
+    }
+  }
+}
+
+process.stdin.setEncoding('utf8');
+process.stdin.on('data', chunk => {
+  if (raw.length < MAX_STDIN) {
+    const remaining = MAX_STDIN - raw.length;
+    raw += chunk.substring(0, remaining);
+  }
+});
+
+process.stdin.on('end', () => {
+  try {
+    const input = JSON.parse(raw);
+    const filePath = String(input.tool_input?.file_path || '');
+    maybeRunQualityGate(filePath);
+  } catch {
+    // Ignore parse errors.
+  }
+
+  process.stdout.write(raw);
+});