124 lines
3.4 KiB
Text
124 lines
3.4 KiB
Text
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#!/usr/bin/env python3
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#
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# Copyright (C) 2017 Marcel Patzwahl
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# Licensed under the terms of the GNU GPL v3 only.
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#
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# i3blocks blocklet script to see the available updates of pacman and the AUR
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import subprocess
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from subprocess import check_output
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import argparse
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import os
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import re
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def create_argparse():
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def _default(name, default='', arg_type=str):
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val = default
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if name in os.environ:
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val = os.environ[name]
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return arg_type(val)
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strbool = lambda s: s.lower() in ['t', 'true', '1']
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strlist = lambda s: s.split()
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parser = argparse.ArgumentParser(description='Check for pacman updates')
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parser.add_argument(
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'-b',
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'--base_color',
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default = _default('BASE_COLOR', 'green'),
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help='base color of the output(default=green)'
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)
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parser.add_argument(
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'-u',
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'--updates_available_color',
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default = _default('UPDATE_COLOR', 'yellow'),
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help='color of the output, when updates are available(default=yellow)'
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)
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parser.add_argument(
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'-a',
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'--aur',
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action = 'store_const',
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const = True,
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default = _default('AUR', 'False', strbool),
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help='Include AUR packages. Attn: Yaourt must be installed'
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)
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parser.add_argument(
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'-q',
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'--quiet',
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action = 'store_const',
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const = True,
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default = _default('QUIET', 'False', strbool),
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help = 'Do not produce output when system is up to date'
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)
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parser.add_argument(
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'-w',
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'--watch',
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nargs='*',
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default = _default('WATCH', arg_type=strlist),
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help='Explicitly watch for specified packages. '
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'Listed elements are treated as regular expressions for matching.'
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)
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return parser.parse_args()
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def get_updates():
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output = check_output(['checkupdates']).decode('utf-8')
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if not output:
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return []
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updates = [line.split(' ')[0]
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for line in output.split('\n')
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if line]
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return updates
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def get_aur_updates():
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output = ''
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try:
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output = check_output(['yaourt', '-Qua']).decode('utf-8')
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except subprocess.CalledProcessError as exc:
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# yaourt exits with 1 and no output if no updates are available.
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# we ignore this case and go on
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if not (exc.returncode == 1 and not exc.output):
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raise exc
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if not output:
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return []
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aur_updates = [line.split(' ')[0]
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for line in output.split('\n')
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if line.startswith('aur/')]
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return aur_updates
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def matching_updates(updates, watch_list):
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matches = set()
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for u in updates:
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for w in watch_list:
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if re.match(w, u):
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matches.add(u)
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return matches
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message = "<span color='{0}'>{1}</span>"
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args = create_argparse()
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updates = get_updates()
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if args.aur:
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updates += get_aur_updates()
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update_count = len(updates)
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if update_count > 0:
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info = str(update_count) + ' updates available'
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short_info = str(update_count) + ' updates'
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matches = matching_updates(updates, args.watch)
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if matches:
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info += ' [{0}]'.format(', '.join(matches))
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short_info += '*'
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print(message.format(args.updates_available_color, info))
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print(message.format(args.updates_available_color, short_info))
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elif not args.quiet:
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print(message.format(args.base_color, 'system up to date'))
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