convenience.js

/*
 * This is a part of CPUFreq Manager
 * Copyright (C) 2016-2019 konkor <konkor.github.io>
 *
 * Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * You should have received a copy of the GNU General Public License along
 * with this program. If not, see <http://www.gnu.org/licenses/>.
 */

const Gettext   = imports.gettext;
const ByteArray = imports.byteArray;

const GLib = imports.gi.GLib;
const Gio  = imports.gi.Gio;

var Format = imports.format;
String.prototype.format = Format.format;

function initTranslations (domain) {
  domain = domain || 'org-konkor-cpufreq';

  let localeDir = Gio.File.new_for_path (getCurrentFile()[1] + '/locale');
  if (localeDir.query_exists (null))
    Gettext.bindtextdomain (domain, localeDir.get_path());
  else
    Gettext.bindtextdomain (domain, '/usr/share/locale');
}

function getSettings (schema) {
  schema = schema || 'org.gnome.shell.extensions.cpufreq';
  const GioSSS = Gio.SettingsSchemaSource;
  let schemaDir = Gio.File.new_for_path (getCurrentFile()[1] + '/schemas');
  let schemaSource;

  if (schemaDir.query_exists (null))
    schemaSource = GioSSS.new_from_directory (
      schemaDir.get_path (), GioSSS.get_default (), false
    );
  else
    schemaSource = GioSSS.get_default ();

  let schemaObj = schemaSource.lookup (schema, true);
  if (!schemaObj)
    throw new Error ('Schema ' + schema + ' could not be found for extension ' +
      'cpufreq@konkor. Please check your installation.');

  return new Gio.Settings ({ settings_schema: schemaObj });
}

function getCurrentFile () {
  let stack = (new Error()).stack;
  let stackLine = stack.split('\n')[1];
  if (!stackLine)
    throw new Error ('Could not find current file');
  let match = new RegExp ('@(.+):\\d+').exec(stackLine);
  if (!match)
    throw new Error ('Could not find current file');
  let path = match[1];
  let file = Gio.File.new_for_path (path);
  return [file.get_path(), file.get_parent().get_path(), file.get_basename()];
}

function byteArrayToString (array) {
  return array instanceof Uint8Array ? ByteArray.toString (array):array;
}

function get_cpu_number () {
  let c = 0;
  let cpulist = null;
  let ret = GLib.spawn_command_line_sync ("cat /sys/devices/system/cpu/present");
  if (ret[0]) cpulist = byteArrayToString(ret[1]).toString().split("\n", 1)[0].split("-");
  cpulist.forEach ((f) => {
    if (parseInt (f) > 0) c = parseInt (f);
  });
  return c + 1;
}