Function getGraphableFiles

src/services/code-graph.ts:598–634

(
  projectPath: string,
  extraExts?: Set<string>,
)

 * Includes files with known AST grammars and any extra extensions.
 */
export async function getGraphableFiles(
  projectPath: string,
  extraExts?: Set<string>,
): Promise<string[]> {
  const ig = createIgnoreFilter(projectPath);
  const extras = extraExts ?? EXTRA_EXTENSIONS;
  const files: string[] = [];

  async function walk(dir: string): Promise<void> {
    let entries: import("node:fs").Dirent[];
    try {
      entries = await fs.readdir(dir, { withFileTypes: true });
    } catch {
      return;
    }

    for (const entry of entries) {
      const fullPath = path.join(dir, entry.name);
      const relPath = toForwardSlash(path.relative(projectPath, fullPath));

      if (shouldIgnore(ig, entry.isDirectory() ? `${relPath}/` : relPath)) continue;

      if (entry.isDirectory()) {
        await walk(fullPath);
      } else if (entry.isFile()) {
        const ext = path.extname(entry.name).toLowerCase();
        // Include if AST grammar is available OR if it's an extra extension
        if (getAstGrepLang(ext) !== null || extras.has(ext)) {
          files.push(relPath);
        }
      }
    }
  }

  await walk(projectPath);
  return files;
}

/**
 * Build a code graph for a project using ast-grep for polyglot support.