mirror of
https://github.com/facebook/sapling.git
synced 2024-10-11 01:07:15 +03:00
7873db8242
Summary: This is the first diff of an alternative fix of D14528603. See also D14603974 for context. We'd like atexit handlers to not crash with EPIPE or SIGPIPE when writing to stderr or stdout. Therefore disable SIGPIPE signal handler and patch ui methods to do so. Differential Revision: D14607159 fbshipit-source-id: 274c5174813d402a7e0b8b5be7c8fcb0524fcdb3
1514 lines
48 KiB
Python
1514 lines
48 KiB
Python
# dispatch.py - command dispatching for mercurial
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#
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# Copyright 2005-2007 Matt Mackall <mpm@selenic.com>
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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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from __future__ import absolute_import
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import difflib
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import errno
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import getopt
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import os
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import pdb
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import re
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import signal
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import sys
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import time
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import traceback
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from . import (
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cmdutil,
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color,
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commands,
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demandimport,
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encoding,
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error,
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extensions,
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fancyopts,
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help,
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hg,
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hintutil,
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hook,
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i18n,
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perftrace,
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profiling,
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pycompat,
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registrar,
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scmutil,
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ui as uimod,
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util,
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)
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from .i18n import _
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unrecoverablewrite = registrar.command.unrecoverablewrite
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class request(object):
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def __init__(
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self,
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args,
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ui=None,
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repo=None,
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fin=None,
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fout=None,
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ferr=None,
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prereposetups=None,
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):
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self.args = args
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self.ui = ui
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self.repo = repo
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# input/output/error streams
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self.fin = fin
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self.fout = fout
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self.ferr = ferr
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# remember options pre-parsed by _earlyparseopts()
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self.earlyoptions = {}
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# reposetups which run before extensions, useful for chg to pre-fill
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# low-level repo state (for example, changelog) before extensions.
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self.prereposetups = prereposetups or []
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def _runexithandlers(self):
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# Silence potential EPIPE or SIGPIPE errors when writing to stdout or
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# stderr.
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signal.signal(signal.SIGPIPE, signal.SIG_IGN)
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class ignoreerrorui(self.ui.__class__):
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def _write(self, *args, **kwargs):
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try:
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return super(ignoreerrorui, self)._write(*args, **kwargs)
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except (OSError, IOError):
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pass
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def _write_err(self, *args, **kwargs):
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try:
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return super(ignoreerrorui, self)._write_err(*args, **kwargs)
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except (OSError, IOError):
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pass
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exc = None
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self.ui.__class__ = ignoreerrorui
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handlers = self.ui._exithandlers
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try:
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while handlers:
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func, args, kwargs = handlers.pop()
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try:
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func(*args, **kwargs)
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except: # re-raises below
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if exc is None:
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exc = sys.exc_info()[1]
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self.ui.warn(("error in exit handlers:\n"))
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self.ui.traceback(force=True)
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finally:
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if exc is not None:
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raise exc
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def run():
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"run the command in sys.argv"
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_initstdio()
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req = request(pycompat.sysargv[1:])
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err = None
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try:
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status = (dispatch(req) or 0) & 255
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except error.StdioError as e:
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err = e
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status = -1
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if util.safehasattr(req.ui, "fout"):
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try:
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req.ui.fout.flush()
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except IOError as e:
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err = e
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status = -1
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if util.safehasattr(req.ui, "ferr"):
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if err is not None and err.errno != errno.EPIPE:
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req.ui.ferr.write("abort: %s\n" % encoding.strtolocal(err.strerror))
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req.ui.ferr.flush()
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sys.exit(status & 255)
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def _preimportmodules():
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"""pre-import modules that are side-effect free (used by chg server)"""
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coremods = [
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"ancestor",
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"archival",
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"bookmarks",
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"branchmap",
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"bundle2",
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"bundlerepo",
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"byterange",
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"changegroup",
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"changelog",
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"color",
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"config",
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"configitems",
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"connectionpool",
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"context",
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"copies",
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"crecord",
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"dagop",
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"dagparser",
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"dagutil",
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"destutil",
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"dirstate",
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"dirstateguard",
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"discovery",
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"exchange",
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"filelog",
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"filemerge",
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"fileset",
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"formatter",
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"graphmod",
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"hbisect",
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"httpclient",
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"httpconnection",
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"httppeer",
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"localrepo",
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"lock",
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"mail",
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"manifest",
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"match",
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"mdiff",
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"merge",
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"mergeutil",
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"minirst",
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"namespaces",
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"node",
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"obsolete",
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"obsutil",
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"parser",
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"patch",
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"pathutil",
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"peer",
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"phases",
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"policy",
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"progress",
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"pushkey",
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"rcutil",
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"repository",
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"repoview",
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"revlog",
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"revset",
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"revsetlang",
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"rewriteutil",
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"rust",
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"scmposix",
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"scmutil",
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"server",
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"setdiscovery",
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"similar",
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"simplemerge",
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"smartset",
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"sshpeer",
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"sshserver",
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"sslutil",
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"store",
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"streamclone",
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"tags",
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"templatefilters",
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"templatekw",
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"templater",
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"transaction",
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"treediscovery",
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"txnutil",
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"url",
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"urllibcompat",
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"vfs",
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"wireproto",
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"worker",
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"__version__",
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]
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extmods = [
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"absorb",
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"amend",
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"arcdiff",
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"automv",
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"blackbox",
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"checkmessagehook",
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"chistedit",
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"clienttelemetry",
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"clindex",
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"conflictinfo",
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"convert",
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"copytrace",
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"crdump",
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"debugcommitmessage",
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"debugshell",
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"dialect",
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"directaccess",
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"dirsync",
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"extlib",
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"extorder",
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"extutil",
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"fastannotate",
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"fastlog",
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"fastmanifest",
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"fbconduit",
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"fbhistedit",
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"fixcorrupt",
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"fsmonitor",
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"githelp",
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"gitlookup",
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"grpcheck",
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"hgevents",
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"hgsubversion",
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"hiddenerror",
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"histedit",
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"infinitepush",
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"journal",
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"lfs",
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"logginghelper",
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"lz4revlog",
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"mergedriver",
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"morecolors",
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"morestatus",
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"patchrmdir",
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"phabdiff",
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"phabstatus",
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"phrevset",
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"progressfile",
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"pullcreatemarkers",
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"purge",
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"pushrebase",
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"rage",
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"rebase",
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"remotefilelog",
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"remotenames",
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"reset",
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"sampling",
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"schemes",
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"share",
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"shelve",
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"sigtrace",
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"simplecache",
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"smartlog",
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"sparse",
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"sshaskpass",
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"stat",
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"traceprof",
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"treemanifest",
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"tweakdefaults",
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"undo",
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]
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for name in coremods:
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__import__("edenscm.mercurial.%s" % name)
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for extname in extmods:
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extensions.preimport(extname)
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def runchgserver():
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"""start the chg server, pre-import bundled extensions"""
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# Clean server - do not load any config files or repos.
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_initstdio()
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ui = uimod.ui()
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repo = None
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args = sys.argv[1:]
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cmd, func, args, globalopts, cmdopts = _parse(ui, args)
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if not (cmd == "serve" and cmdopts["cmdserver"] == "chgunix2"):
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raise error.ProgrammingError("runchgserver called without chg command")
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from . import chgserver, server
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_preimportmodules()
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service = chgserver.chgunixservice(ui, repo, cmdopts)
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server.runservice(cmdopts, initfn=service.init, runfn=service.run)
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def _initstdio():
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for fp in (sys.stdin, sys.stdout, sys.stderr):
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util.setbinary(fp)
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def _getsimilar(symbols, value):
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sim = lambda x: difflib.SequenceMatcher(None, value, x).ratio()
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# The cutoff for similarity here is pretty arbitrary. It should
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# probably be investigated and tweaked.
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return [s for s in symbols if sim(s) > 0.6]
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def _reportsimilar(write, similar):
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if len(similar) == 1:
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write(_("(did you mean %s?)\n") % similar[0])
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elif similar:
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ss = ", ".join(sorted(similar))
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write(_("(did you mean one of %s?)\n") % ss)
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def _formatparse(write, inst):
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similar = []
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if isinstance(inst, error.UnknownIdentifier):
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# make sure to check fileset first, as revset can invoke fileset
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similar = _getsimilar(inst.symbols, inst.function)
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if len(inst.args) > 1:
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write(_("hg: parse error at %s: %s\n") % (inst.args[1], inst.args[0]))
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if inst.args[0][0] == " ":
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write(_("unexpected leading whitespace\n"))
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else:
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write(_("hg: parse error: %s\n") % inst.args[0])
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_reportsimilar(write, similar)
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if inst.hint:
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write(_("(%s)\n") % inst.hint)
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def _formatargs(args):
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return " ".join(util.shellquote(a) for a in args)
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def dispatch(req):
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"run the command specified in req.args"
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if req.ferr:
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ferr = req.ferr
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elif req.ui:
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ferr = req.ui.ferr
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else:
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ferr = util.stderr
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try:
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if not req.ui:
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req.ui = uimod.ui.load()
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req.earlyoptions.update(_earlyparseopts(req.ui, req.args))
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if req.earlyoptions["traceback"]:
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req.ui.setconfig("ui", "traceback", "on", "--traceback")
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# set ui streams from the request
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if req.fin:
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req.ui.fin = req.fin
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if req.fout:
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req.ui.fout = req.fout
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if req.ferr:
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req.ui.ferr = req.ferr
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except error.Abort as inst:
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ferr.write(_("abort: %s\n") % inst)
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if inst.hint:
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ferr.write(_("(%s)\n") % inst.hint)
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return -1
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except error.ParseError as inst:
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_formatparse(ferr.write, inst)
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return -1
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msg = _formatargs(req.args)
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starttime = util.timer()
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ret = None
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retmask = 255
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def logatexit():
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ui = req.ui
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if ui.logmeasuredtimes:
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ui.log(
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"measuredtimes",
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"measured times",
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**pycompat.strkwargs(ui._measuredtimes)
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)
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if ui.metrics.stats:
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# Re-arrange metrics so "a_b_c", "a_b_d", "a_c" becomes
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# {'a': {'b': {'c': ..., 'd': ...}, 'c': ...}
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metrics = {}
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for key, value in ui.metrics.stats.items():
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cur = metrics
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names = key.split("_")
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for name in names[:-1]:
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cur = cur.setdefault(name, {})
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cur[names[-1]] = value
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# pprint.pformat stablizes the output
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from pprint import pformat
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# developer config: devel.print-metrics
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if ui.configbool("devel", "print-metrics"):
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# Print it out.
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msg = "%s\n" % pformat({"metrics": metrics}).replace("'", " ")
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ui.flush()
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ui.write_err(msg, label="ui.metrics")
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# Write to blackbox, and sampling
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ui.log(
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"metrics", pformat({"metrics": metrics}, width=1024), **ui.metrics.stats
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)
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# by registering this exit handler here, we guarantee that it runs
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# after other exithandlers, like the killpager one
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req.ui.atexit(logatexit)
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try:
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ret = _runcatch(req)
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except error.ProgrammingError as inst:
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req.ui.warn(_("** ProgrammingError: %s\n") % inst)
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if inst.hint:
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req.ui.warn(_("** (%s)\n") % inst.hint)
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raise
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except KeyboardInterrupt as inst:
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try:
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if isinstance(inst, error.SignalInterrupt):
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msg = _("killed!\n")
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else:
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msg = _("interrupted!\n")
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req.ui.warn(msg)
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except error.SignalInterrupt:
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# maybe pager would quit without consuming all the output, and
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# SIGPIPE was raised. we cannot print anything in this case.
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pass
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except IOError as inst:
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if inst.errno != errno.EPIPE:
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raise
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ret = -1
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except IOError as inst:
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# Windows does not have SIGPIPE, so pager exit does not
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# get raised as a SignalInterrupt. Let's handle the error
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# explicitly here
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if not pycompat.iswindows or inst.errno != errno.EINVAL:
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raise
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ret = -1
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finally:
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duration = util.timer() - starttime
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req.ui.flush()
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req.ui.log(
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"commandfinish",
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"%s exited %d after %0.2f seconds\n",
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msg,
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ret or 0,
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duration,
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)
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traces = perftrace.traces()
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if traces:
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threshold = req.ui.configint("tracing", "threshold")
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for trace in traces:
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if trace.duration() > threshold:
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output = perftrace.asciirender(trace)
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if req.ui.configbool("tracing", "stderr"):
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req.ui.warn("%s\n" % output)
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req.ui.log("perftrace", "Trace:\n%s\n" % output)
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req.ui._measuredtimes["command_duration"] = duration * 1000
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retmask = req.ui.configint("ui", "exitcodemask")
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try:
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req._runexithandlers()
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except: # exiting, so no re-raises
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ret = ret or -1
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if ret is None:
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ret = 0
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return ret & retmask
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def _runcatch(req):
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def catchterm(*args):
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raise error.SignalInterrupt
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ui = req.ui
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try:
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for name in "SIGBREAK", "SIGHUP", "SIGTERM":
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num = getattr(signal, name, None)
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if num:
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signal.signal(num, catchterm)
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except ValueError:
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pass # happens if called in a thread
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def _runcatchfunc():
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realcmd = None
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try:
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cmdargs = fancyopts.fancyopts(req.args[:], commands.globalopts, {})
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cmd = cmdargs[0]
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aliases, entry = cmdutil.findcmd(cmd, commands.table, False)
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realcmd = aliases[0]
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except (
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error.UnknownCommand,
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error.AmbiguousCommand,
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IndexError,
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getopt.GetoptError,
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):
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# Don't handle this here. We know the command is
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# invalid, but all we're worried about for now is that
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# it's not a command that server operators expect to
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# be safe to offer to users in a sandbox.
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pass
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if realcmd == "serve" and "--read-only" in req.args:
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req.args.remove("--read-only")
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if not req.ui:
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req.ui = uimod.ui.load()
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req.ui.setconfig(
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"hooks", "pretxnopen.readonlyrejectpush", rejectpush, "dispatch"
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)
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req.ui.setconfig(
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"hooks", "prepushkey.readonlyrejectpush", rejectpush, "dispatch"
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)
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if realcmd == "serve" and "--stdio" in cmdargs:
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# We want to constrain 'hg serve --stdio' instances pretty
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# closely, as many shared-ssh access tools want to grant
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# access to run *only* 'hg -R $repo serve --stdio'. We
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# restrict to exactly that set of arguments, and prohibit
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# any repo name that starts with '--' to prevent
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# shenanigans wherein a user does something like pass
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# --debugger or --config=ui.debugger=1 as a repo
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# name. This used to actually run the debugger.
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if (
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len(req.args) != 4
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or req.args[0] != "-R"
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or req.args[1].startswith("--")
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or req.args[2] != "serve"
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or req.args[3] != "--stdio"
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):
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raise error.Abort(
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_("potentially unsafe serve --stdio invocation: %r") % (req.args,)
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)
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try:
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debugger = "pdb"
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debugtrace = {"pdb": pdb.set_trace}
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debugmortem = {"pdb": pdb.post_mortem}
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|
|
# --config takes prescendence over --configfile, so process
|
|
# --configfile first --config second.
|
|
for configfile in req.earlyoptions["configfile"]:
|
|
req.ui.readconfig(configfile)
|
|
|
|
# read --config before doing anything else
|
|
# (e.g. to change trust settings for reading .hg/hgrc)
|
|
cfgs = _parseconfig(req.ui, req.earlyoptions["config"])
|
|
|
|
if req.repo:
|
|
for configfile in req.earlyoptions["configfile"]:
|
|
req.repo.ui.readconfig(configfile)
|
|
# copy configs that were passed on the cmdline (--config) to
|
|
# the repo ui
|
|
for sec, name, val in cfgs:
|
|
req.repo.ui.setconfig(sec, name, val, source="--config")
|
|
|
|
# developer config: ui.debugger
|
|
debugger = ui.config("ui", "debugger")
|
|
debugmod = pdb
|
|
if not debugger or ui.plain():
|
|
# if we are in HGPLAIN mode, then disable custom debugging
|
|
debugger = "pdb"
|
|
elif req.earlyoptions["debugger"]:
|
|
# This import can be slow for fancy debuggers, so only
|
|
# do it when absolutely necessary, i.e. when actual
|
|
# debugging has been requested
|
|
with demandimport.deactivated():
|
|
try:
|
|
debugmod = __import__(debugger)
|
|
except ImportError:
|
|
pass # Leave debugmod = pdb
|
|
|
|
debugtrace[debugger] = debugmod.set_trace
|
|
debugmortem[debugger] = debugmod.post_mortem
|
|
|
|
# enter the debugger before command execution
|
|
if req.earlyoptions["debugger"]:
|
|
ui.warn(
|
|
_(
|
|
"entering debugger - "
|
|
"type c to continue starting hg or h for help\n"
|
|
)
|
|
)
|
|
|
|
if debugger != "pdb" and debugtrace[debugger] == debugtrace["pdb"]:
|
|
ui.warn(
|
|
_("%s debugger specified " "but its module was not found\n")
|
|
% debugger
|
|
)
|
|
with demandimport.deactivated():
|
|
debugtrace[debugger]()
|
|
try:
|
|
return _dispatch(req)
|
|
finally:
|
|
ui.flush()
|
|
except: # re-raises
|
|
# enter the debugger when we hit an exception
|
|
if req.earlyoptions["debugger"]:
|
|
traceback.print_exc()
|
|
debugmortem[debugger](sys.exc_info()[2])
|
|
raise
|
|
|
|
return _callcatch(ui, _runcatchfunc)
|
|
|
|
|
|
def _callcatch(ui, func):
|
|
"""like scmutil.callcatch but handles more high-level exceptions about
|
|
config parsing and commands. besides, use handlecommandexception to handle
|
|
uncaught exceptions.
|
|
"""
|
|
try:
|
|
return scmutil.callcatch(ui, func)
|
|
except error.AmbiguousCommand as inst:
|
|
ui.warn(
|
|
_("hg: command '%s' is ambiguous:\n %s\n")
|
|
% (inst.args[0], " ".join(inst.args[1]))
|
|
)
|
|
except error.CommandError as inst:
|
|
if inst.args[0]:
|
|
msgbytes = pycompat.bytestr(inst.args[1])
|
|
ui.warn(_("hg %s: %s\n") % (inst.args[0], msgbytes))
|
|
ui.warn(_("(use 'hg %s -h' to get help)\n") % (inst.args[0],))
|
|
else:
|
|
ui.warn(_("hg: %s\n") % inst.args[1])
|
|
ui.warn(_("(use 'hg -h' to get help)\n"))
|
|
except error.ParseError as inst:
|
|
_formatparse(ui.warn, inst)
|
|
return -1
|
|
except error.UnknownCommand as inst:
|
|
nocmdmsg = _("hg: unknown command '%s'\n") % inst.args[0]
|
|
try:
|
|
# check if the command is in a disabled extension
|
|
# (but don't check for extensions themselves)
|
|
formatted = help.formattedhelp(ui, commands, inst.args[0], unknowncmd=True)
|
|
ui.warn(nocmdmsg)
|
|
ui.write(formatted)
|
|
except (error.UnknownCommand, error.Abort):
|
|
suggested = False
|
|
if len(inst.args) == 2:
|
|
sim = _getsimilar(inst.args[1], inst.args[0])
|
|
if sim:
|
|
ui.warn(nocmdmsg)
|
|
_reportsimilar(ui.warn, sim)
|
|
suggested = True
|
|
if not suggested:
|
|
ui.pager("help")
|
|
ui.warn(nocmdmsg)
|
|
commands.help_(ui)
|
|
except error.UnknownSubcommand as inst:
|
|
cmd, subcmd, allsubcmds = inst.args
|
|
suggested = False
|
|
if subcmd is not None:
|
|
nosubcmdmsg = _("hg %s: unknown subcommand '%s'\n") % (cmd, subcmd)
|
|
sim = _getsimilar(allsubcmds, subcmd)
|
|
if sim:
|
|
ui.warn(nosubcmdmsg)
|
|
_reportsimilar(ui.warn, sim)
|
|
suggested = True
|
|
else:
|
|
nosubcmdmsg = _("hg %s: subcommand required\n") % cmd
|
|
if not suggested:
|
|
ui.pager("help")
|
|
ui.warn(nosubcmdmsg)
|
|
commands.help_(ui, cmd)
|
|
except IOError:
|
|
raise
|
|
except KeyboardInterrupt:
|
|
raise
|
|
except: # probably re-raises
|
|
if not handlecommandexception(ui):
|
|
raise
|
|
|
|
return -1
|
|
|
|
|
|
def aliasargs(fn, givenargs):
|
|
args = []
|
|
# only care about alias 'args', ignore 'args' set by extensions.wrapfunction
|
|
if not util.safehasattr(fn, "_origfunc"):
|
|
args = getattr(fn, "args", args)
|
|
if args:
|
|
cmd = " ".join(map(util.shellquote, args))
|
|
|
|
nums = []
|
|
|
|
def replacer(m):
|
|
num = int(m.group(1)) - 1
|
|
nums.append(num)
|
|
if num < len(givenargs):
|
|
return givenargs[num]
|
|
raise error.Abort(_("too few arguments for command alias"))
|
|
|
|
cmd = re.sub(br"\$(\d+|\$)", replacer, cmd)
|
|
givenargs = [x for i, x in enumerate(givenargs) if i not in nums]
|
|
args = pycompat.shlexsplit(cmd)
|
|
return args + givenargs
|
|
|
|
|
|
def aliasinterpolate(name, args, cmd):
|
|
"""interpolate args into cmd for shell aliases
|
|
|
|
This also handles $0, $@ and "$@".
|
|
"""
|
|
# util.interpolate can't deal with "$@" (with quotes) because it's only
|
|
# built to match prefix + patterns.
|
|
replacemap = dict(("$%d" % (i + 1), arg) for i, arg in enumerate(args))
|
|
replacemap["$0"] = name
|
|
replacemap["$$"] = "$"
|
|
replacemap["$@"] = " ".join(args)
|
|
# Typical Unix shells interpolate "$@" (with quotes) as all the positional
|
|
# parameters, separated out into words. Emulate the same behavior here by
|
|
# quoting the arguments individually. POSIX shells will then typically
|
|
# tokenize each argument into exactly one word.
|
|
replacemap['"$@"'] = " ".join(util.shellquote(arg) for arg in args)
|
|
# escape '\$' for regex
|
|
regex = "|".join(replacemap.keys()).replace("$", br"\$")
|
|
r = re.compile(regex)
|
|
return r.sub(lambda x: replacemap[x.group()], cmd)
|
|
|
|
|
|
class cmdalias(object):
|
|
def __init__(self, name, definition, cmdtable, source, aliasdoc=None):
|
|
self.name = self.cmd = name
|
|
self.cmdname = ""
|
|
self.definition = definition
|
|
self.fn = None
|
|
self.givenargs = []
|
|
self.opts = []
|
|
self.help = ""
|
|
self.badalias = None
|
|
self.unknowncmd = False
|
|
self.source = source
|
|
self.aliasdoc = aliasdoc
|
|
|
|
try:
|
|
aliases, entry = cmdutil.findcmd(self.name, cmdtable)
|
|
for alias, e in cmdtable.iteritems():
|
|
if e is entry:
|
|
self.cmd = alias
|
|
break
|
|
except error.UnknownCommand:
|
|
pass
|
|
|
|
if not self.definition:
|
|
self.badalias = _("no definition for alias '%s'") % self.name
|
|
return
|
|
|
|
if self.definition.startswith("!"):
|
|
self.shell = True
|
|
|
|
def fn(ui, *args):
|
|
env = {"HG_ARGS": " ".join((self.name,) + args)}
|
|
|
|
def _checkvar(m):
|
|
if m.groups()[0] == "$":
|
|
return m.group()
|
|
elif int(m.groups()[0]) <= len(args):
|
|
return m.group()
|
|
else:
|
|
ui.debug(
|
|
"No argument found for substitution "
|
|
"of %i variable in alias '%s' definition."
|
|
% (int(m.groups()[0]), self.name)
|
|
)
|
|
return ""
|
|
|
|
cmd = re.sub(br"\$(\d+|\$)", _checkvar, self.definition[1:])
|
|
cmd = aliasinterpolate(self.name, args, cmd)
|
|
return ui.system(cmd, environ=env, blockedtag="alias")
|
|
|
|
self.fn = fn
|
|
return
|
|
|
|
try:
|
|
args = pycompat.shlexsplit(self.definition)
|
|
except ValueError as inst:
|
|
self.badalias = _("error in definition for alias '%s': %s") % (
|
|
self.name,
|
|
inst,
|
|
)
|
|
return
|
|
earlyopts, args = _earlysplitopts(args)
|
|
if earlyopts:
|
|
self.badalias = _(
|
|
"error in definition for alias '%s': %s may "
|
|
"only be given on the command line"
|
|
) % (self.name, "/".join(zip(*earlyopts)[0]))
|
|
return
|
|
|
|
self.cmdname = cmd = args[0]
|
|
try:
|
|
cmd, args, aliases, entry = cmdutil.findsubcmd(
|
|
args, cmdtable, strict=False, partial=True
|
|
)
|
|
self.cmdname = cmd
|
|
self.givenargs = args
|
|
if len(entry) > 2:
|
|
self.fn, self.opts, self.help = entry
|
|
else:
|
|
self.fn, self.opts = entry
|
|
|
|
if self.help.startswith("hg " + cmd):
|
|
# drop prefix in old-style help lines so hg shows the alias
|
|
self.help = self.help[4 + len(cmd) :]
|
|
self.cmdtemplate = self.fn.cmdtemplate
|
|
self.norepo = self.fn.norepo
|
|
self.__doc__ = self.fn.__doc__
|
|
|
|
except error.UnknownCommand:
|
|
self.badalias = _("alias '%s' resolves to unknown command '%s'") % (
|
|
self.name,
|
|
cmd,
|
|
)
|
|
self.unknowncmd = True
|
|
except error.AmbiguousCommand:
|
|
self.badalias = _("alias '%s' resolves to ambiguous command '%s'") % (
|
|
self.name,
|
|
cmd,
|
|
)
|
|
except error.UnknownSubcommand as e:
|
|
cmd, subcmd, __ = e.args
|
|
self.badalias = _(
|
|
"alias '%s' resolves to unknown subcommand " "'%s %s'"
|
|
) % (self.name, cmd, subcmd)
|
|
|
|
@property
|
|
def args(self):
|
|
args = pycompat.maplist(util.expandpath, self.givenargs)
|
|
return aliasargs(self.fn, args)
|
|
|
|
def __getattr__(self, name):
|
|
adefaults = {
|
|
r"norepo": True,
|
|
r"cmdtemplate": False,
|
|
r"cmdtype": unrecoverablewrite,
|
|
r"optionalrepo": False,
|
|
r"inferrepo": False,
|
|
r"subcommands": {},
|
|
r"subcommandcategories": [],
|
|
r"subonly": False,
|
|
}
|
|
if name not in adefaults:
|
|
raise AttributeError(name)
|
|
if self.badalias or util.safehasattr(self, "shell"):
|
|
return adefaults[name]
|
|
return getattr(self.fn, name)
|
|
|
|
def __call__(self, ui, *args, **opts):
|
|
if self.badalias:
|
|
hint = None
|
|
if self.unknowncmd:
|
|
try:
|
|
# check if the command is in a disabled extension
|
|
cmd, ext = extensions.disabledcmd(ui, self.cmdname)[:2]
|
|
hint = _("'%s' is provided by '%s' extension") % (cmd, ext)
|
|
except error.UnknownCommand:
|
|
pass
|
|
raise error.Abort(self.badalias, hint=hint)
|
|
|
|
ui.log(
|
|
"commandalias", "alias '%s' expands to '%s'\n", self.name, self.definition
|
|
)
|
|
if util.safehasattr(self, "shell"):
|
|
return self.fn(ui, *args, **opts)
|
|
else:
|
|
try:
|
|
return util.checksignature(self.fn)(ui, *args, **opts)
|
|
except error.SignatureError:
|
|
args = " ".join([self.cmdname] + self.args)
|
|
ui.debug("alias '%s' expands to '%s'\n" % (self.name, args))
|
|
raise
|
|
|
|
|
|
class lazyaliasentry(object):
|
|
"""like a typical command entry (func, opts, help), but is lazy"""
|
|
|
|
# Keep track of aliases being resolved to detect cycles.
|
|
_resolving = []
|
|
|
|
def __init__(self, name, definition, cmdtable, source):
|
|
self.name = name
|
|
self.definition = definition
|
|
self.cmdtable = cmdtable
|
|
self.source = source
|
|
self.aliasdoc = None
|
|
|
|
# If an alias and its definition have a same command name (ex.
|
|
# "log = log -v"). Copy the command table right now so the old
|
|
# command definition becomes accessible. This is the only special
|
|
# case. Commands referred by other aliases will be resolved as
|
|
# aliases if possible, regardless of the config order.
|
|
# Copying cmdtable is cheaper than resolving a command, which
|
|
# could be O(len(cmdtable)) in Python.
|
|
if not definition.startswith("!"):
|
|
try:
|
|
cmdname = pycompat.shlexsplit(definition)[:1]
|
|
except ValueError:
|
|
cmdname = []
|
|
if [name] == cmdname:
|
|
self.cmdtable = cmdtable.copy()
|
|
|
|
@util.propertycache
|
|
def _aliasdef(self):
|
|
if self.name in self._resolving:
|
|
raise error.Abort(
|
|
_("circular aliases: %s") % " ".join(sorted(self._resolving))
|
|
)
|
|
self._resolving.append(self.name)
|
|
try:
|
|
return cmdalias(
|
|
self.name, self.definition, self.cmdtable, self.source, self.aliasdoc
|
|
)
|
|
finally:
|
|
popped = self._resolving.pop()
|
|
assert popped == self.name
|
|
|
|
def __getitem__(self, n):
|
|
aliasdef = self._aliasdef
|
|
l = [aliasdef, aliasdef.opts, aliasdef.help]
|
|
return l[n]
|
|
|
|
def __iter__(self):
|
|
for i in range(3):
|
|
yield self[i]
|
|
|
|
def __len__(self):
|
|
return 3
|
|
|
|
|
|
class cmdtemplatestate(object):
|
|
"""Template-related state for a command.
|
|
|
|
Used together with cmdtemplate=True.
|
|
|
|
In MVC's sense, this is the "M". The template language takes the "M" and
|
|
renders the "V".
|
|
"""
|
|
|
|
def __init__(self, ui, opts):
|
|
self._ui = ui
|
|
self._templ = opts.get("template")
|
|
if self._templ:
|
|
# Suppress traditional outputs.
|
|
ui.pushbuffer()
|
|
self._props = {}
|
|
|
|
def setprop(self, name, value):
|
|
self._props[name] = value
|
|
|
|
def end(self):
|
|
if self._templ:
|
|
ui = self._ui
|
|
ui.popbuffer()
|
|
text = cmdutil.rendertemplate(self._ui, self._templ, self._props)
|
|
self._ui.write(text)
|
|
|
|
|
|
def addaliases(ui, cmdtable):
|
|
# aliases are processed after extensions have been loaded, so they
|
|
# may use extension commands. Aliases can also use other alias definitions,
|
|
# but only if they have been defined prior to the current definition.
|
|
aliasdoc = {}
|
|
for alias, definition in ui.configitems("alias"):
|
|
if alias.endswith(":doc"):
|
|
aliasdoc[alias[:-4]] = definition
|
|
continue
|
|
try:
|
|
if cmdtable[alias].definition == definition:
|
|
continue
|
|
except (KeyError, AttributeError):
|
|
# definition might not exist or it might not be a cmdalias
|
|
pass
|
|
|
|
source = ui.configsource("alias", alias)
|
|
entry = lazyaliasentry(alias, definition, cmdtable, source)
|
|
cmdtable[alias] = entry
|
|
for alias, doc in aliasdoc.items():
|
|
if alias in cmdtable:
|
|
cmdtable[alias].aliasdoc = doc
|
|
|
|
|
|
def _parse(ui, args):
|
|
options = {}
|
|
cmdoptions = {}
|
|
|
|
try:
|
|
args = fancyopts.fancyopts(args, commands.globalopts, options)
|
|
except getopt.GetoptError as inst:
|
|
raise error.CommandError(None, inst)
|
|
|
|
if args:
|
|
strict = ui.configbool("ui", "strict")
|
|
cmd, args, aliases, entry = cmdutil.findsubcmd(args, commands.table, strict)
|
|
args = aliasargs(entry[0], args)
|
|
defaults = ui.config("defaults", cmd)
|
|
if defaults:
|
|
args = (
|
|
pycompat.maplist(util.expandpath, pycompat.shlexsplit(defaults)) + args
|
|
)
|
|
c = list(entry[1])
|
|
else:
|
|
cmd = None
|
|
c = []
|
|
|
|
# combine global options into local
|
|
for o in commands.globalopts:
|
|
c.append((o[0], o[1], options[o[1]], o[3]))
|
|
|
|
try:
|
|
args = fancyopts.fancyopts(args, c, cmdoptions, gnu=True)
|
|
except getopt.GetoptError as inst:
|
|
raise error.CommandError(cmd, inst)
|
|
|
|
# separate global options back out
|
|
for o in commands.globalopts:
|
|
n = o[1]
|
|
options[n] = cmdoptions[n]
|
|
del cmdoptions[n]
|
|
|
|
return (cmd, cmd and entry[0] or None, args, options, cmdoptions)
|
|
|
|
|
|
def _parseconfig(ui, config):
|
|
"""parse the --config options from the command line"""
|
|
configs = []
|
|
|
|
for cfg in config:
|
|
try:
|
|
name, value = [cfgelem.strip() for cfgelem in cfg.split("=", 1)]
|
|
section, name = name.split(".", 1)
|
|
if not section or not name:
|
|
raise IndexError
|
|
ui.setconfig(section, name, value, "--config")
|
|
configs.append((section, name, value))
|
|
except (IndexError, ValueError):
|
|
raise error.Abort(
|
|
_("malformed --config option: %r " "(use --config section.name=value)")
|
|
% cfg
|
|
)
|
|
|
|
return configs
|
|
|
|
|
|
def _earlyparseopts(ui, args):
|
|
options = {}
|
|
fancyopts.fancyopts(
|
|
args,
|
|
commands.globalopts,
|
|
options,
|
|
gnu=not ui.plain("strictflags"),
|
|
early=True,
|
|
optaliases={"repository": ["repo"]},
|
|
)
|
|
return options
|
|
|
|
|
|
def _earlysplitopts(args):
|
|
"""Split args into a list of possible early options and remainder args"""
|
|
shortoptions = "R:"
|
|
# TODO: perhaps 'debugger' should be included
|
|
longoptions = ["cwd=", "repository=", "repo=", "config="]
|
|
return fancyopts.earlygetopt(
|
|
args, shortoptions, longoptions, gnu=True, keepsep=True
|
|
)
|
|
|
|
|
|
def runcommand(lui, repo, cmd, fullargs, ui, options, d, cmdpats, cmdoptions):
|
|
# run pre-hook, and abort if it fails
|
|
hook.hook(
|
|
lui,
|
|
repo,
|
|
"pre-%s" % cmd,
|
|
True,
|
|
args=" ".join(fullargs),
|
|
pats=cmdpats,
|
|
opts=cmdoptions,
|
|
)
|
|
try:
|
|
hintutil.loadhintconfig(lui)
|
|
ui.log("jobid", jobid=encoding.environ.get("HG_JOB_ID", "unknown"))
|
|
ret = _runcommand(ui, options, cmd, d)
|
|
# run post-hook, passing command result
|
|
hook.hook(
|
|
lui,
|
|
repo,
|
|
"post-%s" % cmd,
|
|
False,
|
|
args=" ".join(fullargs),
|
|
result=ret,
|
|
pats=cmdpats,
|
|
opts=cmdoptions,
|
|
)
|
|
except Exception as e:
|
|
# run failure hook and re-raise
|
|
hook.hook(
|
|
lui,
|
|
repo,
|
|
"fail-%s" % cmd,
|
|
False,
|
|
args=" ".join(fullargs),
|
|
pats=cmdpats,
|
|
opts=cmdoptions,
|
|
)
|
|
_log_exception(lui, e)
|
|
raise
|
|
return ret
|
|
|
|
|
|
def _log_exception(lui, e):
|
|
try:
|
|
lui.log("exceptions", exception_type=type(e).__name__, exception_msg=str(e))
|
|
except Exception:
|
|
pass
|
|
|
|
|
|
def _getlocal(ui, rpath, wd=None):
|
|
"""Return (path, local ui object) for the given target path.
|
|
|
|
Takes paths in [cwd]/.hg/hgrc into account."
|
|
"""
|
|
if wd is None:
|
|
try:
|
|
wd = pycompat.getcwd()
|
|
except OSError as e:
|
|
if e.errno == errno.ENOTCONN:
|
|
ui.warn(_("current working directory is not connected\n"))
|
|
ui.warn(
|
|
_(
|
|
"(for virtual checkouts, run '@prog@ fs doctor' to diagnose issues with edenfs)\n"
|
|
)
|
|
)
|
|
return "", ui
|
|
raise error.Abort(
|
|
_("error getting current working directory: %s")
|
|
% encoding.strtolocal(e.strerror)
|
|
)
|
|
path = cmdutil.findrepo(wd) or ""
|
|
if not path:
|
|
lui = ui
|
|
else:
|
|
lui = ui.copy()
|
|
lui.readconfig(os.path.join(path, ".hg", "hgrc"), path)
|
|
|
|
if rpath:
|
|
path = lui.expandpath(rpath)
|
|
lui = ui.copy()
|
|
lui.readconfig(os.path.join(path, ".hg", "hgrc"), path)
|
|
|
|
return path, lui
|
|
|
|
|
|
def _checkshellalias(lui, ui, args):
|
|
"""Return the function to run the shell alias, if it is required"""
|
|
options = {}
|
|
|
|
try:
|
|
args = fancyopts.fancyopts(args, commands.globalopts, options)
|
|
except getopt.GetoptError:
|
|
return
|
|
|
|
if not args:
|
|
return
|
|
|
|
cmdtable = commands.table
|
|
|
|
cmd = args[0]
|
|
try:
|
|
strict = ui.configbool("ui", "strict")
|
|
aliases, entry = cmdutil.findcmd(cmd, cmdtable, strict)
|
|
except (error.AmbiguousCommand, error.UnknownCommand):
|
|
return
|
|
|
|
cmd = aliases[0]
|
|
fn = entry[0]
|
|
|
|
if cmd and util.safehasattr(fn, "shell"):
|
|
# shell alias shouldn't receive early options which are consumed by hg
|
|
_earlyopts, args = _earlysplitopts(args)
|
|
d = lambda: fn(ui, *args[1:])
|
|
return lambda: runcommand(lui, None, cmd, args[:1], ui, options, d, [], {})
|
|
|
|
|
|
def _dispatch(req):
|
|
args = req.args
|
|
ui = req.ui
|
|
|
|
# check for cwd
|
|
cwd = req.earlyoptions["cwd"]
|
|
if cwd:
|
|
os.chdir(cwd)
|
|
|
|
rpath = req.earlyoptions["repository"]
|
|
path, lui = _getlocal(ui, rpath)
|
|
|
|
uis = {ui, lui}
|
|
|
|
if req.repo:
|
|
uis.add(req.repo.ui)
|
|
|
|
if req.earlyoptions["profile"]:
|
|
for ui_ in uis:
|
|
ui_.setconfig("profiling", "enabled", "true", "--profile")
|
|
|
|
with profiling.profile(lui) as profiler:
|
|
# Configure extensions in phases: uisetup, extsetup, cmdtable, and
|
|
# reposetup
|
|
extensions.loadall(lui)
|
|
# Propagate any changes to lui.__class__ by extensions
|
|
ui.__class__ = lui.__class__
|
|
|
|
# (uisetup and extsetup are handled in extensions.loadall)
|
|
|
|
# (reposetup is handled in hg.repository)
|
|
|
|
addaliases(lui, commands.table)
|
|
|
|
# All aliases and commands are completely defined, now.
|
|
# Check abbreviation/ambiguity of shell alias.
|
|
shellaliasfn = _checkshellalias(lui, ui, args)
|
|
if shellaliasfn:
|
|
return shellaliasfn()
|
|
|
|
# check for fallback encoding
|
|
fallback = lui.config("ui", "fallbackencoding")
|
|
if fallback:
|
|
encoding.fallbackencoding = fallback
|
|
|
|
fullargs = args
|
|
cmd, func, args, options, cmdoptions = _parse(lui, args)
|
|
|
|
if options["encoding"]:
|
|
encoding.encoding = options["encoding"]
|
|
if options["encodingmode"]:
|
|
encoding.encodingmode = options["encodingmode"]
|
|
i18n.init()
|
|
|
|
if options["config"] != req.earlyoptions["config"]:
|
|
raise error.Abort(_("option --config may not be abbreviated!"))
|
|
if options["configfile"] != req.earlyoptions["configfile"]:
|
|
raise error.Abort(_("option --configfile may not be abbreviated!"))
|
|
if options["cwd"] != req.earlyoptions["cwd"]:
|
|
raise error.Abort(_("option --cwd may not be abbreviated!"))
|
|
if options["repository"] != req.earlyoptions["repository"]:
|
|
raise error.Abort(
|
|
_(
|
|
"option -R has to be separated from other options (e.g. not "
|
|
"-qR) and --repository may only be abbreviated as --repo!"
|
|
)
|
|
)
|
|
if options["debugger"] != req.earlyoptions["debugger"]:
|
|
raise error.Abort(_("option --debugger may not be abbreviated!"))
|
|
# don't validate --profile/--traceback, which can be enabled from now
|
|
|
|
if options["time"]:
|
|
|
|
def get_times():
|
|
t = os.times()
|
|
if t[4] == 0.0:
|
|
# Windows leaves this as zero, so use time.clock()
|
|
t = (t[0], t[1], t[2], t[3], time.clock())
|
|
return t
|
|
|
|
s = get_times()
|
|
|
|
def print_time():
|
|
t = get_times()
|
|
ui.warn(
|
|
_("time: real %.3f secs (user %.3f+%.3f sys %.3f+%.3f)\n")
|
|
% (t[4] - s[4], t[0] - s[0], t[2] - s[2], t[1] - s[1], t[3] - s[3])
|
|
)
|
|
|
|
ui.atexit(print_time)
|
|
if options["profile"]:
|
|
profiler.start()
|
|
|
|
if options["verbose"] or options["debug"] or options["quiet"]:
|
|
for opt in ("verbose", "debug", "quiet"):
|
|
val = str(bool(options[opt]))
|
|
if pycompat.ispy3:
|
|
val = val.encode("ascii")
|
|
for ui_ in uis:
|
|
ui_.setconfig("ui", opt, val, "--" + opt)
|
|
|
|
if options["traceback"]:
|
|
for ui_ in uis:
|
|
ui_.setconfig("ui", "traceback", "on", "--traceback")
|
|
|
|
if options["noninteractive"]:
|
|
for ui_ in uis:
|
|
ui_.setconfig("ui", "interactive", "off", "-y")
|
|
|
|
if cmdoptions.get("insecure", False):
|
|
for ui_ in uis:
|
|
ui_.insecureconnections = True
|
|
|
|
# setup color handling before pager, because setting up pager
|
|
# might cause incorrect console information
|
|
coloropt = options["color"]
|
|
for ui_ in uis:
|
|
if coloropt:
|
|
ui_.setconfig("ui", "color", coloropt, "--color")
|
|
color.setup(ui_)
|
|
|
|
if util.parsebool(options["pager"]):
|
|
# ui.pager() expects 'internal-always-' prefix in this case
|
|
ui.pager("internal-always-" + cmd)
|
|
elif options["pager"] != "auto":
|
|
for ui_ in uis:
|
|
ui_.disablepager()
|
|
|
|
if options["version"]:
|
|
return commands.version_(ui)
|
|
if options["help"]:
|
|
return commands.help_(ui, cmd, command=cmd is not None)
|
|
elif not cmd:
|
|
return commands.help_(ui)
|
|
|
|
msg = _formatargs(fullargs)
|
|
with perftrace.trace("hg " + msg):
|
|
repo = None
|
|
deferred = []
|
|
if func.cmdtemplate:
|
|
templ = cmdtemplatestate(ui, cmdoptions)
|
|
args.insert(0, templ)
|
|
deferred.append(lambda: templ.end())
|
|
cmdpats = args[:]
|
|
if not func.norepo:
|
|
# use the repo from the request only if we don't have -R
|
|
if not rpath and not cwd:
|
|
repo = req.repo
|
|
|
|
if repo:
|
|
# set the descriptors of the repo ui to those of ui
|
|
repo.ui.fin = ui.fin
|
|
repo.ui.fout = ui.fout
|
|
repo.ui.ferr = ui.ferr
|
|
else:
|
|
try:
|
|
repo = hg.repository(
|
|
ui, path=path, presetupfuncs=req.prereposetups
|
|
)
|
|
if not repo.local():
|
|
raise error.Abort(_("repository '%s' is not local") % path)
|
|
repo.ui.setconfig("bundle", "mainreporoot", repo.root, "repo")
|
|
except error.RequirementError:
|
|
raise
|
|
except error.RepoError:
|
|
if rpath: # invalid -R path
|
|
raise
|
|
if not func.optionalrepo:
|
|
if func.inferrepo and args and not path:
|
|
# try to infer -R from command args
|
|
repos = pycompat.maplist(cmdutil.findrepo, args)
|
|
guess = repos[0]
|
|
if guess and repos.count(guess) == len(repos):
|
|
req.args = ["--repository", guess] + fullargs
|
|
req.earlyoptions["repository"] = guess
|
|
return _dispatch(req)
|
|
if not path:
|
|
raise error.RepoError(
|
|
_("no repository found in" " '%s' (.hg not found)")
|
|
% pycompat.getcwd()
|
|
)
|
|
raise
|
|
if repo:
|
|
ui = repo.ui
|
|
if options["hidden"]:
|
|
repo = repo.unfiltered()
|
|
if repo != req.repo:
|
|
deferred.append(repo.close)
|
|
args.insert(0, repo)
|
|
elif rpath:
|
|
ui.warn(_("warning: --repository ignored\n"))
|
|
|
|
from . import mdiff
|
|
|
|
mdiff.init(ui)
|
|
|
|
ui.log("command", "%s\n", msg)
|
|
strcmdopt = pycompat.strkwargs(cmdoptions)
|
|
d = lambda: util.checksignature(func)(ui, *args, **strcmdopt)
|
|
try:
|
|
ret = runcommand(
|
|
lui, repo, cmd, fullargs, ui, options, d, cmdpats, cmdoptions
|
|
)
|
|
hintutil.show(lui)
|
|
return ret
|
|
finally:
|
|
for func in deferred:
|
|
func()
|
|
|
|
|
|
def _runcommand(ui, options, cmd, cmdfunc):
|
|
"""Run a command function, possibly with profiling enabled."""
|
|
try:
|
|
return cmdfunc()
|
|
except error.SignatureError:
|
|
raise error.CommandError(cmd, _("invalid arguments"))
|
|
|
|
|
|
def _exceptionwarning(ui):
|
|
"""Produce a warning message for the current active exception"""
|
|
|
|
# For compatibility checking, we discard the portion of the hg
|
|
# version after the + on the assumption that if a "normal
|
|
# user" is running a build with a + in it the packager
|
|
# probably built from fairly close to a tag and anyone with a
|
|
# 'make local' copy of hg (where the version number can be out
|
|
# of date) will be clueful enough to notice the implausible
|
|
# version number and try updating.
|
|
ct = util.versiontuple(n=2)
|
|
worst = None, ct, ""
|
|
if ui.config("ui", "supportcontact") is None:
|
|
for name, mod in extensions.extensions():
|
|
testedwith = getattr(mod, "testedwith", "")
|
|
if pycompat.ispy3 and isinstance(testedwith, str):
|
|
testedwith = testedwith.encode(u"utf-8")
|
|
report = getattr(mod, "buglink", _("the extension author."))
|
|
if not testedwith.strip():
|
|
# We found an untested extension. It's likely the culprit.
|
|
worst = name, "unknown", report
|
|
break
|
|
|
|
# Never blame on extensions bundled with Mercurial.
|
|
if extensions.ismoduleinternal(mod):
|
|
continue
|
|
|
|
tested = [util.versiontuple(t, 2) for t in testedwith.split()]
|
|
if ct in tested:
|
|
continue
|
|
|
|
lower = [t for t in tested if t < ct]
|
|
nearest = max(lower or tested)
|
|
if worst[0] is None or nearest < worst[1]:
|
|
worst = name, nearest, report
|
|
if worst[0] is not None:
|
|
name, testedwith, report = worst
|
|
if not isinstance(testedwith, (bytes, str)):
|
|
testedwith = ".".join([str(c) for c in testedwith])
|
|
warning = _(
|
|
"** Unknown exception encountered with "
|
|
"possibly-broken third-party extension %s.\n"
|
|
"** Please disable %s and try your action again.\n"
|
|
"** If that fixes the bug please report it to %s\n"
|
|
) % (name, name, report)
|
|
else:
|
|
bugtracker = ui.config("ui", "supportcontact")
|
|
if bugtracker is None:
|
|
bugtracker = _("https://mercurial-scm.org/wiki/BugTracker")
|
|
warning = (
|
|
_("** unknown exception encountered, " "please report by visiting\n** ")
|
|
+ bugtracker
|
|
+ "\n"
|
|
)
|
|
if pycompat.ispy3:
|
|
sysversion = sys.version.encode(u"utf-8")
|
|
else:
|
|
sysversion = sys.version
|
|
sysversion = sysversion.replace("\n", "")
|
|
warning += (
|
|
(_("** Python %s\n") % sysversion)
|
|
+ (_("** @LongProduct@ (version %s)\n") % util.version())
|
|
+ (
|
|
_("** Extensions loaded: %s\n")
|
|
% ", ".join([x[0] for x in extensions.extensions()])
|
|
)
|
|
)
|
|
return warning
|
|
|
|
|
|
def handlecommandexception(ui):
|
|
"""Produce a warning message for broken commands
|
|
|
|
Called when handling an exception; the exception is reraised if
|
|
this function returns False, ignored otherwise.
|
|
"""
|
|
warning = _exceptionwarning(ui)
|
|
ui.log("commandexception", "%s\n%s\n", warning, traceback.format_exc())
|
|
ui.warn(warning)
|
|
return False # re-raise the exception
|
|
|
|
|
|
def rejectpush(ui, **kwargs):
|
|
ui.warn(("Permission denied - blocked by readonlyrejectpush hook\n"))
|
|
# mercurial hooks use unix process conventions for hook return values
|
|
# so a truthy return means failure
|
|
return True
|