Install Impeccable skill for Codex

.agents/skills/impeccable/scripts/detector/node/file-system.mjs

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+import fs from 'node:fs';
+import path from 'node:path';
+
+// ---------------------------------------------------------------------------
+// File walker
+// ---------------------------------------------------------------------------
+
+const SKIP_DIRS = new Set([
+  'node_modules', '.git', 'dist', 'build', '.next', '.nuxt', '.output',
+  '.svelte-kit', '__pycache__', '.turbo', '.vercel',
+]);
+
+const SCANNABLE_EXTENSIONS = new Set([
+  '.html', '.htm', '.css', '.scss', '.less',
+  '.jsx', '.tsx', '.js', '.ts',
+  '.vue', '.svelte', '.astro',
+]);
+
+const HTML_EXTENSIONS = new Set(['.html', '.htm']);
+
+function walkDir(dir) {
+  const files = [];
+  let entries;
+  try { entries = fs.readdirSync(dir, { withFileTypes: true }); } catch { return files; }
+  for (const entry of entries) {
+    if (SKIP_DIRS.has(entry.name)) continue;
+    const full = path.join(dir, entry.name);
+    if (entry.isDirectory()) files.push(...walkDir(full));
+    else if (SCANNABLE_EXTENSIONS.has(path.extname(entry.name).toLowerCase())) files.push(full);
+  }
+  return files;
+}
+
+
+// ---------------------------------------------------------------------------
+// Import graph (multi-file awareness)
+// ---------------------------------------------------------------------------
+
+function resolveImport(specifier, fromDir, fileSet) {
+  if (!/^[./]/.test(specifier)) return null; // skip bare specifiers
+  const base = path.resolve(fromDir, specifier);
+  if (fileSet.has(base)) return base;
+  for (const ext of SCANNABLE_EXTENSIONS) {
+    const withExt = base + ext;
+    if (fileSet.has(withExt)) return withExt;
+  }
+  // index file convention
+  for (const ext of SCANNABLE_EXTENSIONS) {
+    const indexFile = path.join(base, 'index' + ext);
+    if (fileSet.has(indexFile)) return indexFile;
+  }
+  return null;
+}
+
+function buildImportGraph(files) {
+  const fileSet = new Set(files);
+  const graph = new Map();
+
+  for (const file of files) {
+    const content = fs.readFileSync(file, 'utf-8');
+    const dir = path.dirname(file);
+    const imports = new Set();
+
+    // ES imports: import ... from '...' and import '...'
+    const esRe = /import\s+(?:[\s\S]*?from\s+)?['"]([^'"]+)['"]/g;
+    let m;
+    while ((m = esRe.exec(content)) !== null) {
+      const resolved = resolveImport(m[1], dir, fileSet);
+      if (resolved) imports.add(resolved);
+    }
+
+    // CSS @import
+    const cssRe = /@import\s+(?:url\(\s*)?['"]?([^'");\s]+)['"]?\s*\)?/g;
+    while ((m = cssRe.exec(content)) !== null) {
+      const resolved = resolveImport(m[1], dir, fileSet);
+      if (resolved) imports.add(resolved);
+    }
+
+    // SCSS @use / @forward
+    const scssRe = /@(?:use|forward)\s+['"]([^'"]+)['"]/g;
+    while ((m = scssRe.exec(content)) !== null) {
+      const resolved = resolveImport(m[1], dir, fileSet);
+      if (resolved) imports.add(resolved);
+    }
+
+    graph.set(file, imports);
+  }
+  return graph;
+}
+
+// ---------------------------------------------------------------------------
+// Framework dev server detection
+// ---------------------------------------------------------------------------
+
+const FRAMEWORK_CONFIGS = [
+  { name: 'Next.js', files: ['next.config.js', 'next.config.mjs', 'next.config.ts'], defaultPort: 3000,
+    portRe: /port\s*[:=]\s*(\d+)/,
+    fingerprint: { header: 'x-powered-by', value: /next/i } },
+  { name: 'SvelteKit', files: ['svelte.config.js', 'svelte.config.ts'], defaultPort: 5173,
+    portRe: /port\s*[:=]\s*(\d+)/,
+    fingerprint: { header: 'x-sveltekit-page', value: null } },
+  { name: 'Nuxt', files: ['nuxt.config.js', 'nuxt.config.ts'], defaultPort: 3000,
+    portRe: /port\s*[:=]\s*(\d+)/,
+    fingerprint: { header: 'x-powered-by', value: /nuxt/i } },
+  { name: 'Vite', files: ['vite.config.js', 'vite.config.ts', 'vite.config.mjs'], defaultPort: 5173,
+    portRe: /port\s*[:=]\s*(\d+)/,
+    fingerprint: { body: /@vite\/client/ } },
+  { name: 'Astro', files: ['astro.config.js', 'astro.config.ts', 'astro.config.mjs'], defaultPort: 4321,
+    portRe: /port\s*[:=]\s*(\d+)/,
+    fingerprint: { body: /astro/i } },
+  { name: 'Angular', files: ['angular.json'], defaultPort: 4200,
+    portRe: /"port"\s*:\s*(\d+)/,
+    fingerprint: { body: /ng-version/i } },
+  { name: 'Remix', files: ['remix.config.js', 'remix.config.ts'], defaultPort: 3000,
+    portRe: /port\s*[:=]\s*(\d+)/,
+    fingerprint: { header: 'x-powered-by', value: /remix/i } },
+];
+
+function detectFrameworkConfig(dir) {
+  let entries;
+  try { entries = fs.readdirSync(dir); } catch { return null; }
+  const entrySet = new Set(entries);
+
+  for (const cfg of FRAMEWORK_CONFIGS) {
+    const match = cfg.files.find(f => entrySet.has(f));
+    if (!match) continue;
+
+    const configPath = path.join(dir, match);
+    let port = cfg.defaultPort;
+    try {
+      const content = fs.readFileSync(configPath, 'utf-8');
+      const portMatch = content.match(cfg.portRe);
+      if (portMatch) port = parseInt(portMatch[1], 10);
+    } catch { /* use default */ }
+
+    return { name: cfg.name, port, configPath, fingerprint: cfg.fingerprint };
+  }
+  return null;
+}
+
+/**
+ * Check if a port is listening and optionally verify it matches the expected framework.
+ * Returns { listening: true, matched: true/false } or { listening: false }.
+ */
+async function isPortListening(port, fingerprint = null) {
+  if (!fingerprint) {
+    // Simple TCP probe fallback
+    const net = await import('node:net');
+    return new Promise((resolve) => {
+      const sock = net.default.createConnection({ port, host: '127.0.0.1' });
+      sock.setTimeout(500);
+      sock.on('connect', () => { sock.destroy(); resolve({ listening: true, matched: true }); });
+      sock.on('error', () => resolve({ listening: false }));
+      sock.on('timeout', () => { sock.destroy(); resolve({ listening: false }); });
+    });
+  }
+
+  // HTTP probe with fingerprint matching
+  try {
+    const controller = new AbortController();
+    const timeout = setTimeout(() => controller.abort(), 2000);
+    const res = await fetch(`http://localhost:${port}/`, { signal: controller.signal, redirect: 'follow' });
+    clearTimeout(timeout);
+
+    // Check header fingerprint
+    if (fingerprint.header) {
+      const val = res.headers.get(fingerprint.header);
+      if (val && (!fingerprint.value || fingerprint.value.test(val))) {
+        return { listening: true, matched: true };
+      }
+    }
+
+    // Check body fingerprint
+    if (fingerprint.body) {
+      const body = await res.text();
+      if (fingerprint.body.test(body)) {
+        return { listening: true, matched: true };
+      }
+    }
+
+    // Port is listening but doesn't match the expected framework
+    return { listening: true, matched: false };
+  } catch {
+    return { listening: false };
+  }
+}
+
+export {
+  SKIP_DIRS,
+  SCANNABLE_EXTENSIONS,
+  HTML_EXTENSIONS,
+  walkDir,
+  resolveImport,
+  buildImportGraph,
+  FRAMEWORK_CONFIGS,
+  detectFrameworkConfig,
+  isPortListening,
+};