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d0cf5aacfa
Summary: This removes Python alias handling so the alias handling is done entirely in Rust. There are some subtle changes - alias using prefix mathcing to ambiguous commands will not show other aliases. Hopefully that won't be a big issue. Users can always avoid prefix matching in alias to solve the issue. Reviewed By: sfilipco Differential Revision: D16733270 fbshipit-source-id: 54a4915d49c2b2f6e8664a225a9c0f25e1c38d17
82 lines
2.7 KiB
Python
82 lines
2.7 KiB
Python
# nointerrupt.py - prevent mercurial from being ctrl-c'ed
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#
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# Copyright 2016 Facebook, Inc.
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#
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# This software may be used and distributed according to the terms of the
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# GNU General Public License version 2 or any later version.
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"""warns but doesn't exit when the user first hits Ctrl+C
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This extension shows a warning the first time a user hits Ctrl+C saying the
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repository could end up in a bad state. If the user hits Ctrl+C a second time,
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hg will exit as usual.
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By default, this behavior only applies to commands that are explicitly
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whitelisted for it. To whitelist a command (say, "commit"), use:
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[nointerrupt]
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attend-commit = true
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To change the default behavior to have all commands instrumented, set config
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option ``nointerrupt.default-attend`` to true, then use the same logic to
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disable it for commands where it's not wanted - for instance, for "log":
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[nointerrupt]
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default-attend = true
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attend-log = false
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Finally, to customize the message shown on the first Ctrl+C, set it in
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config option ``nointerrupt.message``.
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"""
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import signal
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import sys
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from edenscm.mercurial import cmdutil, commands, dispatch, extensions
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def sigintprintwarninghandlerfactory(oldsiginthandler, msg):
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def sigint(*args):
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sys.stderr.write(msg)
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signal.signal(signal.SIGINT, oldsiginthandler)
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return sigint
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def nointerruptcmd(orig, ui, options, cmd, cmdfunc):
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# bail if not in interactive terminal
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if ui.configbool("nointerrupt", "interactiveonly", True):
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if not ui.fout.isatty() or ui.plain():
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return orig(ui, options, cmd, cmdfunc)
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cmds, _cmdtableentry = cmdutil.findcmd(cmd, commands.table)
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shouldpreventinterrupt = ui.configbool("nointerrupt", "default-attend", False)
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for cmd in cmds:
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var = "attend-%s" % cmd
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if ui.config("nointerrupt", var):
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shouldpreventinterrupt = ui.configbool("nointerrupt", var)
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break
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if shouldpreventinterrupt:
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oldsiginthandler = signal.getsignal(signal.SIGINT)
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try:
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msg = ui.config(
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"nointerrupt",
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"message",
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"==========================\n"
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"Interrupting Mercurial may leave your repo in a bad state.\n"
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"If you really want to interrupt your current command, press\n"
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"CTRL-C again.\n"
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"==========================\n",
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)
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signal.signal(
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signal.SIGINT, sigintprintwarninghandlerfactory(oldsiginthandler, msg)
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)
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except AttributeError:
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pass
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return orig(ui, options, cmd, cmdfunc)
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def uisetup(ui):
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extensions.wrapfunction(dispatch, "_runcommand", nointerruptcmd)
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