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<b>Warning</b>:  session_start(): open(/var/lib/php/sessions/sess_mjra5eifh587sn8use63vb1mbr, O_RDWR) failed: No space left on device (28) in <b>/var/www/tb-usercake/models/config.php</b> on line <b>51</b><br />
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<b>Warning</b>:  session_start(): Failed to read session data: files (path: /var/lib/php/sessions) in <b>/var/www/tb-usercake/models/config.php</b> on line <b>51</b><br />
public static File mkdirsForFile(File file) {
  File dir = file.getParentFile();
  if (dir != null) try { // is null if file is in current dir
    dir.mkdirs();
  } catch (IOException e) {
    if (dir.isFile()) fail("Please delete the file " + f2s(dir) + " - it is supposed to be a directory!");
  }
  ret file;
}

public static S mkdirsForFile(S path) {
  mkdirsForFile(new File(path));
  ret path;
}