zip.open(zipFile, openFlags);
      zip.addEntryFile(
        fileName,
        Ci.nsIZipWriter.COMPRESSION_DEFAULT,
        file,
        false
      );
      zip.close();

      // Remove the original file (now zipped).
      file.remove(true);
      return true;
    } catch (err) {
      console.error(err);

      // Something went wrong (disk space?) rename the original file back.
      file.moveTo(null, originalFileName);
    }

    return false;
  },

  getLocalDirectory(path) {
    let dir;

    if (!path) {
      dir = Services.dirsvc.get("ProfD", Ci.nsIFile);
      dir.append("har");
      dir.append("logs");
    } else {
      dir = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsIFile);
      dir.initWithPath(path);
    }

    return dir;
  },
};

// Exports from this module
exports.HarUtils = HarUtils;
PK