Function dirsToMount

src/templates/python_cli_entry.mjs:12–33

* Determine which native top level directories to mount into the Emscripten * file system. * * This is a bit brittle, if the machine has a top level directory with certain * names it is possible this could break. The most surprising one here is tmp, I * am not sure why but if we link tmp then t

()

 * am not sure why but if we link tmp then the process silently fails.
 */
function dirsToMount() {
  const filteredDirs = new Set([
    // Unix
    "dev",
    "lib",
    "proc",
  ]);

  return readdirSync("/")
    .filter((dir) => !filteredDirs.has(dir))
    .filter((dir) => !dir.startsWith("$")) // System directories in Windows, such as $Recycle.Bin
    .filter((dir) => {
      // Use stat to confirm this entry is a directory.
      try {
        const st = statSync("/" + dir);
        return st.isDirectory();
      } catch (e) {
        return false;
      }
    })
    .map((dir) => "/" + dir);
}

/**
 * Convert a Windows absolute path to a Unix-style path.