109 lines
3.2 KiB
Python
109 lines
3.2 KiB
Python
# vim: ft=python fileencoding=utf-8 sts=4 sw=4 et:
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# Copyright 2014 Florian Bruhin (The Compiler) <mail@qutebrowser.org>
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#
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# This file is part of qutebrowser.
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#
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# qutebrowser is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# qutebrowser is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with qutebrowser. If not, see <http://www.gnu.org/licenses/>.
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"""Misc. utility commands exposed to the user."""
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import types
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import functools
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from PyQt5.QtCore import QCoreApplication
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from qutebrowser.utils import usertypes, log, objreg
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from qutebrowser.commands import runners, cmdexc, cmdutils
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from qutebrowser.config import style
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_timers = []
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_commandrunner = None
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def init():
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"""Initialize the global _commandrunner."""
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global _commandrunner
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_commandrunner = runners.CommandRunner()
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@cmdutils.register()
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def later(ms: int, *command):
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"""Execute a command after some time.
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Args:
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ms: How many milliseconds to wait.
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*command: The command to run, with optional args.
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"""
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timer = usertypes.Timer(name='later')
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timer.setSingleShot(True)
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if ms < 0:
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raise cmdexc.CommandError("I can't run something in the past!")
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try:
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timer.setInterval(ms)
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except OverflowError:
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raise cmdexc.CommandError("Numeric argument is too large for internal "
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"int representation.")
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_timers.append(timer)
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cmdline = ' '.join(command)
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timer.timeout.connect(functools.partial(
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_commandrunner.run_safely, cmdline))
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timer.timeout.connect(lambda: _timers.remove(timer))
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timer.start()
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@cmdutils.register(debug=True)
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def debug_crash(typ: ('exception', 'segfault')='exception'):
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"""Crash for debugging purposes.
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Args:
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typ: either 'exception' or 'segfault'.
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Raises:
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raises Exception when typ is not segfault.
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segfaults when typ is (you don't say...)
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"""
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if typ == 'segfault':
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# From python's Lib/test/crashers/bogus_code_obj.py
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co = types.CodeType(0, 0, 0, 0, 0, b'\x04\x71\x00\x00', (), (), (),
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'', '', 1, b'')
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exec(co) # pylint: disable=exec-used
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raise Exception("Segfault failed (wat.)")
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else:
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raise Exception("Forced crash")
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@cmdutils.register(debug=True)
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def debug_all_objects():
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"""Print a list of all objects to the debug log."""
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s = QCoreApplication.instance().get_all_objects()
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log.misc.debug(s)
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@cmdutils.register(debug=True)
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def debug_cache_stats():
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"""Print LRU cache stats."""
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config_info = objreg.get('config').get.cache_info()
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style_info = style.get_stylesheet.cache_info()
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log.misc.debug('config: {}'.format(config_info))
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log.misc.debug('style: {}'.format(style_info))
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@cmdutils.register(debug=True)
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def debug_console():
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"""Show the debugging console."""
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objreg.get('debug-console').show()
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