| 1 | import fs from 'node:fs'; |
| 2 | import path from 'node:path'; |
| 3 | |
| 4 | // --------------------------------------------------------------------------- |
| 5 | // File walker |
| 6 | // --------------------------------------------------------------------------- |
| 7 | |
| 8 | const SKIP_DIRS = new Set([ |
| 9 | 'node_modules', '.git', 'dist', 'build', '.next', '.nuxt', '.output', |
| 10 | '.svelte-kit', '__pycache__', '.turbo', '.vercel', |
| 11 | ]); |
| 12 | |
| 13 | const SCANNABLE_EXTENSIONS = new Set([ |
| 14 | '.html', '.htm', '.css', '.scss', '.less', |
| 15 | '.jsx', '.tsx', '.js', '.ts', |
| 16 | '.vue', '.svelte', '.astro', |
| 17 | ]); |
| 18 | |
| 19 | const HTML_EXTENSIONS = new Set(['.html', '.htm']); |
| 20 | |
| 21 | function walkDir(dir) { |
| 22 | const files = []; |
| 23 | let entries; |
| 24 | try { entries = fs.readdirSync(dir, { withFileTypes: true }); } catch { return files; } |
| 25 | for (const entry of entries) { |
| 26 | if (SKIP_DIRS.has(entry.name)) continue; |
| 27 | const full = path.join(dir, entry.name); |
| 28 | if (entry.isDirectory()) files.push(...walkDir(full)); |
| 29 | else if (SCANNABLE_EXTENSIONS.has(path.extname(entry.name).toLowerCase())) files.push(full); |
| 30 | } |
| 31 | return files; |
| 32 | } |
| 33 | |
| 34 | |
| 35 | // --------------------------------------------------------------------------- |
| 36 | // Import graph (multi-file awareness) |
| 37 | // --------------------------------------------------------------------------- |
| 38 | |
| 39 | function resolveImport(specifier, fromDir, fileSet) { |
| 40 | if (!/^[./]/.test(specifier)) return null; // skip bare specifiers |
| 41 | const base = path.resolve(fromDir, specifier); |
| 42 | if (fileSet.has(base)) return base; |
| 43 | for (const ext of SCANNABLE_EXTENSIONS) { |
| 44 | const withExt = base + ext; |
| 45 | if (fileSet.has(withExt)) return withExt; |
| 46 | } |
| 47 | // index file convention |
| 48 | for (const ext of SCANNABLE_EXTENSIONS) { |
| 49 | const indexFile = path.join(base, 'index' + ext); |
| 50 | if (fileSet.has(indexFile)) return indexFile; |
| 51 | } |
| 52 | return null; |
| 53 | } |
| 54 | |
| 55 | function buildImportGraph(files) { |
| 56 | const fileSet = new Set(files); |
| 57 | const graph = new Map(); |
| 58 | |
| 59 | for (const file of files) { |
| 60 | const content = fs.readFileSync(file, 'utf-8'); |
| 61 | const dir = path.dirname(file); |
| 62 | const imports = new Set(); |
| 63 | |
| 64 | // ES imports: import ... from '...' and import '...' |
| 65 | const esRe = /import\s+(?:[\s\S]*?from\s+)?['"]([^'"]+)['"]/g; |
| 66 | let m; |
| 67 | while ((m = esRe.exec(content)) !== null) { |
| 68 | const resolved = resolveImport(m[1], dir, fileSet); |
| 69 | if (resolved) imports.add(resolved); |
| 70 | } |
| 71 | |
| 72 | // CSS @import |
| 73 | const cssRe = /@import\s+(?:url\(\s*)?['"]?([^'");\s]+)['"]?\s*\)?/g; |
| 74 | while ((m = cssRe.exec(content)) !== null) { |
| 75 | const resolved = resolveImport(m[1], dir, fileSet); |
| 76 | if (resolved) imports.add(resolved); |
| 77 | } |
| 78 | |
| 79 | // SCSS @use / @forward |
| 80 | const scssRe = /@(?:use|forward)\s+['"]([^'"]+)['"]/g; |
| 81 | while ((m = scssRe.exec(content)) !== null) { |
| 82 | const resolved = resolveImport(m[1], dir, fileSet); |
| 83 | if (resolved) imports.add(resolved); |
| 84 | } |
| 85 | |
| 86 | graph.set(file, imports); |
| 87 | } |
| 88 | return graph; |
| 89 | } |
| 90 | |
| 91 | // --------------------------------------------------------------------------- |
| 92 | // Framework dev server detection |
| 93 | // --------------------------------------------------------------------------- |
| 94 | |
| 95 | const FRAMEWORK_CONFIGS = [ |
| 96 | { name: 'Next.js', files: ['next.config.js', 'next.config.mjs', 'next.config.ts'], defaultPort: 3000, |
| 97 | portRe: /port\s*[:=]\s*(\d+)/, |
| 98 | fingerprint: { header: 'x-powered-by', value: /next/i } }, |
| 99 | { name: 'SvelteKit', files: ['svelte.config.js', 'svelte.config.ts'], defaultPort: 5173, |
| 100 | portRe: /port\s*[:=]\s*(\d+)/, |
| 101 | fingerprint: { header: 'x-sveltekit-page', value: null } }, |
| 102 | { name: 'Nuxt', files: ['nuxt.config.js', 'nuxt.config.ts'], defaultPort: 3000, |
| 103 | portRe: /port\s*[:=]\s*(\d+)/, |
| 104 | fingerprint: { header: 'x-powered-by', value: /nuxt/i } }, |
| 105 | { name: 'Vite', files: ['vite.config.js', 'vite.config.ts', 'vite.config.mjs'], defaultPort: 5173, |
| 106 | portRe: /port\s*[:=]\s*(\d+)/, |
| 107 | fingerprint: { body: /@vite\/client/ } }, |
| 108 | { name: 'Astro', files: ['astro.config.js', 'astro.config.ts', 'astro.config.mjs'], defaultPort: 4321, |
| 109 | portRe: /port\s*[:=]\s*(\d+)/, |
| 110 | fingerprint: { body: /astro/i } }, |
| 111 | { name: 'Angular', files: ['angular.json'], defaultPort: 4200, |
| 112 | portRe: /"port"\s*:\s*(\d+)/, |
| 113 | fingerprint: { body: /ng-version/i } }, |
| 114 | { name: 'Remix', files: ['remix.config.js', 'remix.config.ts'], defaultPort: 3000, |
| 115 | portRe: /port\s*[:=]\s*(\d+)/, |
| 116 | fingerprint: { header: 'x-powered-by', value: /remix/i } }, |
| 117 | ]; |
| 118 | |
| 119 | function detectFrameworkConfig(dir) { |
| 120 | let entries; |
| 121 | try { entries = fs.readdirSync(dir); } catch { return null; } |
| 122 | const entrySet = new Set(entries); |
| 123 | |
| 124 | for (const cfg of FRAMEWORK_CONFIGS) { |
| 125 | const match = cfg.files.find(f => entrySet.has(f)); |
| 126 | if (!match) continue; |
| 127 | |
| 128 | const configPath = path.join(dir, match); |
| 129 | let port = cfg.defaultPort; |
| 130 | try { |
| 131 | const content = fs.readFileSync(configPath, 'utf-8'); |
| 132 | const portMatch = content.match(cfg.portRe); |
| 133 | if (portMatch) port = parseInt(portMatch[1], 10); |
| 134 | } catch { /* use default */ } |
| 135 | |
| 136 | return { name: cfg.name, port, configPath, fingerprint: cfg.fingerprint }; |
| 137 | } |
| 138 | return null; |
| 139 | } |
| 140 | |
| 141 | /** |
| 142 | * Check if a port is listening and optionally verify it matches the expected framework. |
| 143 | * Returns { listening: true, matched: true/false } or { listening: false }. |
| 144 | */ |
| 145 | async function isPortListening(port, fingerprint = null) { |
| 146 | if (!fingerprint) { |
| 147 | // Simple TCP probe fallback |
| 148 | const net = await import('node:net'); |
| 149 | return new Promise((resolve) => { |
| 150 | const sock = net.default.createConnection({ port, host: '127.0.0.1' }); |
| 151 | sock.setTimeout(500); |
| 152 | sock.on('connect', () => { sock.destroy(); resolve({ listening: true, matched: true }); }); |
| 153 | sock.on('error', () => resolve({ listening: false })); |
| 154 | sock.on('timeout', () => { sock.destroy(); resolve({ listening: false }); }); |
| 155 | }); |
| 156 | } |
| 157 | |
| 158 | // HTTP probe with fingerprint matching |
| 159 | try { |
| 160 | const controller = new AbortController(); |
| 161 | const timeout = setTimeout(() => controller.abort(), 2000); |
| 162 | const res = await fetch(`http://localhost:${port}/`, { signal: controller.signal, redirect: 'follow' }); |
| 163 | clearTimeout(timeout); |
| 164 | |
| 165 | // Check header fingerprint |
| 166 | if (fingerprint.header) { |
| 167 | const val = res.headers.get(fingerprint.header); |
| 168 | if (val && (!fingerprint.value || fingerprint.value.test(val))) { |
| 169 | return { listening: true, matched: true }; |
| 170 | } |
| 171 | } |
| 172 | |
| 173 | // Check body fingerprint |
| 174 | if (fingerprint.body) { |
| 175 | const body = await res.text(); |
| 176 | if (fingerprint.body.test(body)) { |
| 177 | return { listening: true, matched: true }; |
| 178 | } |
| 179 | } |
| 180 | |
| 181 | // Port is listening but doesn't match the expected framework |
| 182 | return { listening: true, matched: false }; |
| 183 | } catch { |
| 184 | return { listening: false }; |
| 185 | } |
| 186 | } |
| 187 | |
| 188 | export { |
| 189 | SKIP_DIRS, |
| 190 | SCANNABLE_EXTENSIONS, |
| 191 | HTML_EXTENSIONS, |
| 192 | walkDir, |
| 193 | resolveImport, |
| 194 | buildImportGraph, |
| 195 | FRAMEWORK_CONFIGS, |
| 196 | detectFrameworkConfig, |
| 197 | isPortListening, |
| 198 | }; |
| 199 |