# Copyright (c) 2015 Ali Mousavi
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
import os
from subprocess import CalledProcessError, Popen
from libqtile.log_utils import logger
from libqtile.widget import base
[docs]class CheckUpdates(base.ThreadPoolText):
"""Shows number of pending updates in different unix systems"""
defaults = [
("distro", "Arch", "Name of your distribution"),
("custom_command", None, "Custom shell command for checking updates (counts the lines of the output)"),
("custom_command_modify", (lambda x: x), "Lambda function to modify line count from custom_command"),
("update_interval", 60, "Update interval in seconds."),
('execute', None, 'Command to execute on click'),
("display_format", "Updates: {updates}", "Display format if updates available"),
("colour_no_updates", "ffffff", "Colour when there's no updates."),
("colour_have_updates", "ffffff", "Colour when there are updates."),
("restart_indicator", "", "Indicator to represent reboot is required. (Ubuntu only)"),
("no_update_string", "", "String to display if no updates available")
]
def __init__(self, **config):
base.ThreadPoolText.__init__(self, "", **config)
self.add_defaults(CheckUpdates.defaults)
# Helpful to have this as a variable as we can shorten it for testing
self.execute_polling_interval = 1
# format: "Distro": ("cmd", "number of lines to subtract from output")
self.cmd_dict = {"Arch": ("pacman -Qu", 0),
"Arch_checkupdates": ("checkupdates", 0),
"Arch_Sup": ("pacman -Sup", 0),
"Arch_paru": ("paru -Qu", 0),
"Arch_paru_Sup": ("paru -Sup", 0),
"Arch_yay": ("yay -Qu", 0),
"Debian": ("apt-show-versions -u -b", 0),
"Gentoo_eix": ("EIX_LIMIT=0 eix -u# --world", 0),
"Ubuntu": ("aptitude search ~U", 0),
"Fedora": ("dnf list updates -q", 1),
"FreeBSD": ("pkg_version -I -l '<'", 0),
"Mandriva": ("urpmq --auto-select", 0)
}
if self.custom_command:
# Use custom_command
self.cmd = self.custom_command
else:
# Check if distro name is valid.
try:
self.cmd = self.cmd_dict[self.distro][0]
self.custom_command_modify = (lambda x: x - self.cmd_dict[self.distro][1])
except KeyError:
distros = sorted(self.cmd_dict.keys())
logger.error(self.distro + ' is not a valid distro name. ' +
'Use one of the list: ' + str(distros) + '.')
self.cmd = None
if self.execute:
self.add_callbacks({'Button1': self.do_execute})
def _check_updates(self):
# type: () -> str
try:
updates = self.call_process(self.cmd, shell=True)
except CalledProcessError:
updates = ""
num_updates = self.custom_command_modify(len(updates.splitlines()))
if num_updates < 0:
num_updates = 0
if num_updates == 0:
self.layout.colour = self.colour_no_updates
return self.no_update_string
num_updates = str(num_updates)
if self.restart_indicator and os.path.exists('/var/run/reboot-required'):
num_updates += self.restart_indicator
self.layout.colour = self.colour_have_updates
return self.display_format.format(**{"updates": num_updates})
def poll(self):
# type: () -> str
if not self.cmd:
return "N/A"
return self._check_updates()
def do_execute(self):
self._process = Popen(self.execute, shell=True)
self.timeout_add(self.execute_polling_interval, self._refresh_count)
def _refresh_count(self):
if self._process.poll() is None:
self.timeout_add(self.execute_polling_interval, self._refresh_count)
else:
self.timer_setup()