Method walk

src/sync/watcher.ts:492–514

(dir: string, linked: boolean)

    const desired = new Map<string, string>();
    const recursive = supportsRecursiveWatch();
    const walk = (dir: string, linked: boolean): void => {
      if (this.shouldIgnoreDir(dir)) return;
      let real: string;
      try {
        real = fs.realpathSync(dir);
        if (this.visitedRealDirs.has(real)) return;
        this.visitedRealDirs.add(real);
        directories.set(dir, real);
        if (!recursive || linked) desired.set(dir, real);
        for (const entry of fs.readdirSync(dir, { withFileTypes: true })) {
          const child = path.join(dir, entry.name);
          if (entry.isDirectory()) {
            walk(child, false);
          } else if (entry.isSymbolicLink()) {
            // Follow directory symlinks just like the indexer's walk. Realpath
            // deduplication includes ordinary directories and the root itself.
            try {
              if (fs.statSync(child).isDirectory()) walk(child, true);
            } catch { /* broken link */ }
          }
        }
      } catch { /* removed or unreadable directory */ }
    };
    walk(this.projectRoot, false);
    this.knownDirs = directories;
    for (const dir of this.dirWatchers.keys()) {