# -*- python -*- ''' xpybar – xmobar replacement written in python Copyright © 2014, 2015 Mattias Andrée (maandree@member.fsf.org) This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. ''' import os from util import * from plugins.linereader import LineReader class Inotify: ''' File access monitor ''' def __init__(self, callback, *arguments, events = None): ''' Constructor @param callback:(str)→void Function that will be called everytime a line is read from `inotifywait`'s standard output, the parameter will be that line, note that this will not be asynchronously, you may want to specify something like `lambda : async(fun)` for that, and use semaphores in `fun`. @param arguments:*str The files and directories you want to watch and any addition argument you want to pass to `inotifywait` @param event:itr<str>? Event you want reported, see "EVENTS" under `inotifywait`'s man page ''' command = ['inotifywait', '-m'] if events is not None: if isinstance(events, str): events = [events] for event in events: command.append('-e') command.append(event) command += list(arguments) def start(): with LineReader(spawn(*command)) as reader: while True: callback(reader.next()) async(start)