Function processModule

vmm/ui/build.mjs:37–88

(moduleId)

  const modules = new Map();

  async function processModule(moduleId) {
    if (modules.has(moduleId)) {
      return;
    }
    const absPath = path.resolve(ROOT, moduleId);
    const ext = path.extname(absPath);
    if (ext === '.html') {
      const content = await readFileCached(absPath);
      modules.set(moduleId, {
        type: 'raw',
        code: `module.exports = ${JSON.stringify(content)};`,
        dependencyMap: {},
      });
      return;
    }
    if (ext === '.json') {
      const content = await readFileCached(absPath);
      modules.set(moduleId, {
        type: 'raw',
        code: `module.exports = ${content};`,
        dependencyMap: {},
      });
      return;
    }
    if (ext !== '.js' && ext !== '.cjs' && ext !== '.mjs') {
      throw new Error(`Unsupported module extension: ${absPath}`);
    }
    const source = await readFileCached(absPath);
    const dependencyMap = {};
    const requireRegex = /require\(['"](.+?)['"]\)/g;
    let match;
    while ((match = requireRegex.exec(source)) !== null) {
      const lineStart = source.lastIndexOf('\n', match.index) + 1;
      const trimmed = source.slice(lineStart, match.index).trim();
      if (trimmed.startsWith('//') || trimmed.startsWith('*')) {
        continue;
      }
      const request = match[1];
      const resolved = resolveModule(moduleId, request);
      dependencyMap[request] = resolved;
    }
    const dependencies = Array.from(new Set(Object.values(dependencyMap)));
    modules.set(moduleId, {
      type: 'js',
      code: source,
      dependencyMap,
      dependencies,
    });
    for (const dep of dependencies) {
      await processModule(dep);
    }
  }

  await processModule(entryId);
  return modules;