templates: add filter to reverse list
The filter supports only lists because for lists, it’s straightforward to
implement. Reversing text doesn’t seem very useful and is hard to implement.
Reversing the bytes would break multi-bytes encodings. Reversing the code
points would break characters consisting of multiple code points. Reversing
graphemes is non-trivial without using a library not included in the standard
library.
# dispatch.py - command dispatching for mercurial
#
# Copyright 2005-2007 Olivia Mackall <olivia@selenic.com>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
import errno
import getopt
import io
import os
import pdb
import re
import signal
import sys
import traceback
from .i18n import _
from .pycompat import getattr
from hgdemandimport import tracing
from . import (
cmdutil,
color,
commands,
demandimport,
encoding,
error,
extensions,
fancyopts,
help,
hg,
hook,
localrepo,
profiling,
pycompat,
rcutil,
registrar,
requirements as requirementsmod,
scmutil,
ui as uimod,
util,
vfs,
)
from .utils import (
procutil,
stringutil,
urlutil,
)
class request:
def __init__(
self,
args,
ui=None,
repo=None,
fin=None,
fout=None,
ferr=None,
fmsg=None,
prereposetups=None,
):
self.args = args
self.ui = ui
self.repo = repo
# input/output/error streams
self.fin = fin
self.fout = fout
self.ferr = ferr
# separate stream for status/error messages
self.fmsg = fmsg
# remember options pre-parsed by _earlyparseopts()
self.earlyoptions = {}
# reposetups which run before extensions, useful for chg to pre-fill
# low-level repo state (for example, changelog) before extensions.
self.prereposetups = prereposetups or []
# store the parsed and canonical command
self.canonical_command = None
def _runexithandlers(self):
exc = None
handlers = self.ui._exithandlers
try:
while handlers:
func, args, kwargs = handlers.pop()
try:
func(*args, **kwargs)
except: # re-raises below
if exc is None:
exc = sys.exc_info()[1]
self.ui.warnnoi18n(b'error in exit handlers:\n')
self.ui.traceback(force=True)
finally:
if exc is not None:
raise exc
def _flushstdio(ui, err):
status = None
# In all cases we try to flush stdio streams.
if util.safehasattr(ui, b'fout'):
assert ui is not None # help pytype
assert ui.fout is not None # help pytype
try:
ui.fout.flush()
except IOError as e:
err = e
status = -1
if util.safehasattr(ui, b'ferr'):
assert ui is not None # help pytype
assert ui.ferr is not None # help pytype
try:
if err is not None and err.errno != errno.EPIPE:
ui.ferr.write(
b'abort: %s\n' % encoding.strtolocal(err.strerror)
)
ui.ferr.flush()
# There's not much we can do about an I/O error here. So (possibly)
# change the status code and move on.
except IOError:
status = -1
return status
def run():
"""run the command in sys.argv"""
try:
initstdio()
with tracing.log('parse args into request'):
req = request(pycompat.sysargv[1:])
status = dispatch(req)
_silencestdio()
except KeyboardInterrupt:
# Catch early/late KeyboardInterrupt as last ditch. Here nothing will
# be printed to console to avoid another IOError/KeyboardInterrupt.
status = -1
sys.exit(status & 255)
def initstdio():
# stdio streams on Python 3 are io.TextIOWrapper instances proxying another
# buffer. These streams will normalize \n to \r\n by default. Mercurial's
# preferred mechanism for writing output (ui.write()) uses io.BufferedWriter
# instances, which write to the underlying stdio file descriptor in binary
# mode. ui.write() uses \n for line endings and no line ending normalization
# is attempted through this interface. This "just works," even if the system
# preferred line ending is not \n.
#
# But some parts of Mercurial (e.g. hooks) can still send data to sys.stdout
# and sys.stderr. They will inherit the line ending normalization settings,
# potentially causing e.g. \r\n to be emitted. Since emitting \n should
# "just work," here we change the sys.* streams to disable line ending
# normalization, ensuring compatibility with our ui type.
if sys.stdout is not None:
# write_through is new in Python 3.7.
kwargs = {
"newline": "\n",
"line_buffering": sys.stdout.line_buffering,
}
if util.safehasattr(sys.stdout, "write_through"):
# pytype: disable=attribute-error
kwargs["write_through"] = sys.stdout.write_through
# pytype: enable=attribute-error
sys.stdout = io.TextIOWrapper(
sys.stdout.buffer, sys.stdout.encoding, sys.stdout.errors, **kwargs
)
if sys.stderr is not None:
kwargs = {
"newline": "\n",
"line_buffering": sys.stderr.line_buffering,
}
if util.safehasattr(sys.stderr, "write_through"):
# pytype: disable=attribute-error
kwargs["write_through"] = sys.stderr.write_through
# pytype: enable=attribute-error
sys.stderr = io.TextIOWrapper(
sys.stderr.buffer, sys.stderr.encoding, sys.stderr.errors, **kwargs
)
if sys.stdin is not None:
# No write_through on read-only stream.
sys.stdin = io.TextIOWrapper(
sys.stdin.buffer,
sys.stdin.encoding,
sys.stdin.errors,
# None is universal newlines mode.
newline=None,
line_buffering=sys.stdin.line_buffering,
)
def _silencestdio():
for fp in (sys.stdout, sys.stderr):
if fp is None:
continue
# Check if the file is okay
try:
fp.flush()
continue
except IOError:
pass
# Otherwise mark it as closed to silence "Exception ignored in"
# message emitted by the interpreter finalizer.
try:
fp.close()
except IOError:
pass
def _formatargs(args):
return b' '.join(procutil.shellquote(a) for a in args)
def dispatch(req):
"""run the command specified in req.args; returns an integer status code"""
err = None
try:
status = _rundispatch(req)
except error.StdioError as e:
err = e
status = -1
ret = _flushstdio(req.ui, err)
if ret and not status:
status = ret
return status
def _rundispatch(req):
with tracing.log('dispatch._rundispatch'):
if req.ferr:
ferr = req.ferr
elif req.ui:
ferr = req.ui.ferr
else:
ferr = procutil.stderr
try:
if not req.ui:
req.ui = uimod.ui.load()
req.earlyoptions.update(_earlyparseopts(req.ui, req.args))
if req.earlyoptions[b'traceback']:
req.ui.setconfig(b'ui', b'traceback', b'on', b'--traceback')
# set ui streams from the request
if req.fin:
req.ui.fin = req.fin
if req.fout:
req.ui.fout = req.fout
if req.ferr:
req.ui.ferr = req.ferr
if req.fmsg:
req.ui.fmsg = req.fmsg
except error.Abort as inst:
ferr.write(inst.format())
return -1
formattedargs = _formatargs(req.args)
starttime = util.timer()
ret = 1 # default of Python exit code on unhandled exception
try:
ret = _runcatch(req) or 0
except error.ProgrammingError as inst:
req.ui.error(_(b'** ProgrammingError: %s\n') % inst)
if inst.hint:
req.ui.error(_(b'** (%s)\n') % inst.hint)
raise
except KeyboardInterrupt as inst:
try:
if isinstance(inst, error.SignalInterrupt):
msg = _(b"killed!\n")
else:
msg = _(b"interrupted!\n")
req.ui.error(msg)
except error.SignalInterrupt:
# maybe pager would quit without consuming all the output, and
# SIGPIPE was raised. we cannot print anything in this case.
pass
except BrokenPipeError:
pass
ret = -1
finally:
duration = util.timer() - starttime
req.ui.flush() # record blocked times
if req.ui.logblockedtimes:
req.ui._blockedtimes[b'command_duration'] = duration * 1000
req.ui.log(
b'uiblocked',
b'ui blocked ms\n',
**pycompat.strkwargs(req.ui._blockedtimes)
)
return_code = ret & 255
req.ui.log(
b"commandfinish",
b"%s exited %d after %0.2f seconds\n",
formattedargs,
return_code,
duration,
return_code=return_code,
duration=duration,
canonical_command=req.canonical_command,
)
try:
req._runexithandlers()
except: # exiting, so no re-raises
ret = ret or -1
# do flush again since ui.log() and exit handlers may write to ui
req.ui.flush()
return ret
def _runcatch(req):
with tracing.log('dispatch._runcatch'):
def catchterm(*args):
raise error.SignalInterrupt
ui = req.ui
try:
for name in b'SIGBREAK', b'SIGHUP', b'SIGTERM':
num = getattr(signal, name, None)
if num:
signal.signal(num, catchterm)
except ValueError:
pass # happens if called in a thread
def _runcatchfunc():
realcmd = None
try:
cmdargs = fancyopts.fancyopts(
req.args[:], commands.globalopts, {}
)
cmd = cmdargs[0]
aliases, entry = cmdutil.findcmd(cmd, commands.table, False)
realcmd = aliases[0]
except (
error.UnknownCommand,
error.AmbiguousCommand,
IndexError,
getopt.GetoptError,
):
# Don't handle this here. We know the command is
# invalid, but all we're worried about for now is that
# it's not a command that server operators expect to
# be safe to offer to users in a sandbox.
pass
if realcmd == b'serve' and b'--stdio' in cmdargs:
# We want to constrain 'hg serve --stdio' instances pretty
# closely, as many shared-ssh access tools want to grant
# access to run *only* 'hg -R $repo serve --stdio'. We
# restrict to exactly that set of arguments, and prohibit
# any repo name that starts with '--' to prevent
# shenanigans wherein a user does something like pass
# --debugger or --config=ui.debugger=1 as a repo
# name. This used to actually run the debugger.
if (
len(req.args) != 4
or req.args[0] != b'-R'
or req.args[1].startswith(b'--')
or req.args[2] != b'serve'
or req.args[3] != b'--stdio'
):
raise error.Abort(
_(b'potentially unsafe serve --stdio invocation: %s')
% (stringutil.pprint(req.args),)
)
try:
debugger = b'pdb'
debugtrace = {b'pdb': pdb.set_trace}
debugmortem = {b'pdb': pdb.post_mortem}
# read --config before doing anything else
# (e.g. to change trust settings for reading .hg/hgrc)
cfgs = _parseconfig(req.ui, req.earlyoptions[b'config'])
if req.repo:
# 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=b'--config'
)
# developer config: ui.debugger
debugger = ui.config(b"ui", b"debugger")
debugmod = pdb
if not debugger or ui.plain():
# if we are in HGPLAIN mode, then disable custom debugging
debugger = b'pdb'
elif req.earlyoptions[b'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[b'debugger']:
ui.warn(
_(
b"entering debugger - "
b"type c to continue starting hg or h for help\n"
)
)
if (
debugger != b'pdb'
and debugtrace[debugger] == debugtrace[b'pdb']
):
ui.warn(
_(
b"%s debugger specified "
b"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[b'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.
"""
detailed_exit_code = -1
try:
return scmutil.callcatch(ui, func)
except error.AmbiguousCommand as inst:
detailed_exit_code = 10
ui.warn(
_(b"hg: command '%s' is ambiguous:\n %s\n")
% (inst.prefix, b" ".join(inst.matches))
)
except error.CommandError as inst:
detailed_exit_code = 10
if inst.command:
ui.pager(b'help')
msgbytes = pycompat.bytestr(inst.message)
ui.warn(_(b"hg %s: %s\n") % (inst.command, msgbytes))
commands.help_(ui, inst.command, full=False, command=True)
else:
ui.warn(_(b"hg: %s\n") % inst.message)
ui.warn(_(b"(use 'hg help -v' for a list of global options)\n"))
except error.UnknownCommand as inst:
detailed_exit_code = 10
nocmdmsg = _(b"hg: unknown command '%s'\n") % inst.command
try:
# check if the command is in a disabled extension
# (but don't check for extensions themselves)
formatted = help.formattedhelp(
ui, commands, inst.command, unknowncmd=True
)
ui.warn(nocmdmsg)
ui.write(formatted)
except (error.UnknownCommand, error.Abort):
suggested = False
if inst.all_commands:
sim = error.getsimilar(inst.all_commands, inst.command)
if sim:
ui.warn(nocmdmsg)
ui.warn(b"(%s)\n" % error.similarity_hint(sim))
suggested = True
if not suggested:
ui.warn(nocmdmsg)
ui.warn(_(b"(use 'hg help' for a list of commands)\n"))
except IOError:
raise
except KeyboardInterrupt:
raise
except: # probably re-raises
if not handlecommandexception(ui):
raise
if ui.configbool(b'ui', b'detailed-exit-code'):
return detailed_exit_code
else:
return -1
def aliasargs(fn, givenargs):
args = []
# only care about alias 'args', ignore 'args' set by extensions.wrapfunction
if not util.safehasattr(fn, b'_origfunc'):
args = getattr(fn, 'args', args)
if args:
cmd = b' '.join(map(procutil.shellquote, args))
nums = []
def replacer(m):
num = int(m.group(1)) - 1
nums.append(num)
if num < len(givenargs):
return givenargs[num]
raise error.InputError(_(b'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 "$@" (with quotes) because it's only
# built to match prefix + patterns.
replacemap = {b'$%d' % (i + 1): arg for i, arg in enumerate(args)}
replacemap[b'$0'] = name
replacemap[b'$$'] = b'$'
replacemap[b'$@'] = b' '.join(args)
# Typical Unix shells interpolate "$@" (with quotes) as all the positional
# parameters, separated out into words. Emulate the same behavior here by
# quoting the arguments individually. POSIX shells will then typically
# tokenize each argument into exactly one word.
replacemap[b'"$@"'] = b' '.join(procutil.shellquote(arg) for arg in args)
# escape '\$' for regex
regex = b'|'.join(replacemap.keys()).replace(b'$', br'\$')
r = re.compile(regex)
return r.sub(lambda x: replacemap[x.group()], cmd)
class cmdalias:
def __init__(self, ui, name, definition, cmdtable, source):
self.name = self.cmd = name
self.cmdname = b''
self.definition = definition
self.fn = None
self.givenargs = []
self.opts = []
self.help = b''
self.badalias = None
self.unknowncmd = False
self.source = source
try:
aliases, entry = cmdutil.findcmd(self.name, cmdtable)
for alias, e in cmdtable.items():
if e is entry:
self.cmd = alias
break
self.shadows = True
except error.UnknownCommand:
self.shadows = False
if not self.definition:
self.badalias = _(b"no definition for alias '%s'") % self.name
return
if self.definition.startswith(b'!'):
shdef = self.definition[1:]
self.shell = True
def fn(ui, *args):
env = {b'HG_ARGS': b' '.join((self.name,) + args)}
def _checkvar(m):
if m.groups()[0] == b'$':
return m.group()
elif int(m.groups()[0]) <= len(args):
return m.group()
else:
ui.debug(
b"No argument found for substitution "
b"of %i variable in alias '%s' definition.\n"
% (int(m.groups()[0]), self.name)
)
return b''
cmd = re.sub(br'\$(\d+|\$)', _checkvar, shdef)
cmd = aliasinterpolate(self.name, args, cmd)
return ui.system(
cmd, environ=env, blockedtag=b'alias_%s' % self.name
)
self.fn = fn
self.alias = True
self._populatehelp(ui, name, shdef, self.fn)
return
try:
args = pycompat.shlexsplit(self.definition)
except ValueError as inst:
self.badalias = _(b"error in definition for alias '%s': %s") % (
self.name,
stringutil.forcebytestr(inst),
)
return
earlyopts, args = _earlysplitopts(args)
if earlyopts:
self.badalias = _(
b"error in definition for alias '%s': %s may "
b"only be given on the command line"
) % (self.name, b'/'.join(pycompat.ziplist(*earlyopts)[0]))
return
self.cmdname = cmd = args.pop(0)
self.givenargs = args
try:
tableentry = cmdutil.findcmd(cmd, cmdtable, False)[1]
if len(tableentry) > 2:
self.fn, self.opts, cmdhelp = tableentry
else:
self.fn, self.opts = tableentry
cmdhelp = None
self.alias = True
self._populatehelp(ui, name, cmd, self.fn, cmdhelp)
except error.UnknownCommand:
self.badalias = _(
b"alias '%s' resolves to unknown command '%s'"
) % (
self.name,
cmd,
)
self.unknowncmd = True
except error.AmbiguousCommand:
self.badalias = _(
b"alias '%s' resolves to ambiguous command '%s'"
) % (
self.name,
cmd,
)
def _populatehelp(self, ui, name, cmd, fn, defaulthelp=None):
# confine strings to be passed to i18n.gettext()
cfg = {}
for k in (b'doc', b'help', b'category'):
v = ui.config(b'alias', b'%s:%s' % (name, k), None)
if v is None:
continue
if not encoding.isasciistr(v):
self.badalias = _(
b"non-ASCII character in alias definition '%s:%s'"
) % (name, k)
return
cfg[k] = v
self.help = cfg.get(b'help', defaulthelp or b'')
if self.help and self.help.startswith(b"hg " + cmd):
# drop prefix in old-style help lines so hg shows the alias
self.help = self.help[4 + len(cmd) :]
self.owndoc = b'doc' in cfg
doc = cfg.get(b'doc', pycompat.getdoc(fn))
if doc is not None:
doc = pycompat.sysstr(doc)
self.__doc__ = doc
self.helpcategory = cfg.get(
b'category', registrar.command.CATEGORY_NONE
)
@property
def args(self):
args = pycompat.maplist(util.expandpath, self.givenargs)
return aliasargs(self.fn, args)
def __getattr__(self, name):
adefaults = {
'norepo': True,
'intents': set(),
'optionalrepo': False,
'inferrepo': False,
}
if name not in adefaults:
raise AttributeError(name)
if self.badalias or util.safehasattr(self, b'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 = _(b"'%s' is provided by '%s' extension") % (cmd, ext)
except error.UnknownCommand:
pass
raise error.ConfigError(self.badalias, hint=hint)
if self.shadows:
ui.debug(
b"alias '%s' shadows command '%s'\n" % (self.name, self.cmdname)
)
ui.log(
b'commandalias',
b"alias '%s' expands to '%s'\n",
self.name,
self.definition,
)
if util.safehasattr(self, b'shell'):
return self.fn(ui, *args, **opts)
else:
try:
return util.checksignature(self.fn)(ui, *args, **opts)
except error.SignatureError:
args = b' '.join([self.cmdname] + self.args)
ui.debug(b"alias '%s' expands to '%s'\n" % (self.name, args))
raise
class lazyaliasentry:
"""like a typical command entry (func, opts, help), but is lazy"""
def __init__(self, ui, name, definition, cmdtable, source):
self.ui = ui
self.name = name
self.definition = definition
self.cmdtable = cmdtable.copy()
self.source = source
self.alias = True
@util.propertycache
def _aliasdef(self):
return cmdalias(
self.ui, self.name, self.definition, self.cmdtable, self.source
)
def __getitem__(self, n):
aliasdef = self._aliasdef
if n == 0:
return aliasdef
elif n == 1:
return aliasdef.opts
elif n == 2:
return aliasdef.help
else:
raise IndexError
def __iter__(self):
for i in range(3):
yield self[i]
def __len__(self):
return 3
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.
for alias, definition in ui.configitems(b'alias', ignoresub=True):
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(b'alias', alias)
entry = lazyaliasentry(ui, alias, definition, cmdtable, source)
cmdtable[alias] = entry
def _parse(ui, args):
options = {}
cmdoptions = {}
try:
args = fancyopts.fancyopts(args, commands.globalopts, options)
except getopt.GetoptError as inst:
raise error.CommandError(None, stringutil.forcebytestr(inst))
if args:
cmd, args = args[0], args[1:]
aliases, entry = cmdutil.findcmd(
cmd, commands.table, ui.configbool(b"ui", b"strict")
)
cmd = aliases[0]
args = aliasargs(entry[0], args)
defaults = ui.config(b"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, stringutil.forcebytestr(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(b'=', 1)]
section, name = name.split(b'.', 1)
if not section or not name:
raise IndexError
ui.setconfig(section, name, value, b'--config')
configs.append((section, name, value))
except (IndexError, ValueError):
raise error.InputError(
_(
b'malformed --config option: %r '
b'(use --config section.name=value)'
)
% pycompat.bytestr(cfg)
)
return configs
def _earlyparseopts(ui, args):
options = {}
fancyopts.fancyopts(
args,
commands.globalopts,
options,
gnu=not ui.plain(b'strictflags'),
early=True,
optaliases={b'repository': [b'repo']},
)
return options
def _earlysplitopts(args):
"""Split args into a list of possible early options and remainder args"""
shortoptions = b'R:'
# TODO: perhaps 'debugger' should be included
longoptions = [b'cwd=', b'repository=', b'repo=', b'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,
b"pre-%s" % cmd,
True,
args=b" ".join(fullargs),
pats=cmdpats,
opts=cmdoptions,
)
try:
ret = _runcommand(ui, options, cmd, d)
# run post-hook, passing command result
hook.hook(
lui,
repo,
b"post-%s" % cmd,
False,
args=b" ".join(fullargs),
result=ret,
pats=cmdpats,
opts=cmdoptions,
)
except Exception:
# run failure hook and re-raise
hook.hook(
lui,
repo,
b"fail-%s" % cmd,
False,
args=b" ".join(fullargs),
pats=cmdpats,
opts=cmdoptions,
)
raise
return ret
def _readsharedsourceconfig(ui, path):
"""if the current repository is shared one, this tries to read
.hg/hgrc of shared source if we are in share-safe mode
Config read is loaded into the ui object passed
This should be called before reading .hg/hgrc or the main repo
as that overrides config set in shared source"""
try:
with open(os.path.join(path, b".hg", b"requires"), "rb") as fp:
requirements = set(fp.read().splitlines())
if not (
requirementsmod.SHARESAFE_REQUIREMENT in requirements
and requirementsmod.SHARED_REQUIREMENT in requirements
):
return
hgvfs = vfs.vfs(os.path.join(path, b".hg"))
sharedvfs = localrepo._getsharedvfs(hgvfs, requirements)
root = sharedvfs.base
ui.readconfig(sharedvfs.join(b"hgrc"), root)
except IOError:
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."
"""
try:
cwd = encoding.getcwd()
except OSError as e:
raise error.Abort(
_(b"error getting current working directory: %s")
% encoding.strtolocal(e.strerror)
)
# If using an alternate wd, temporarily switch to it so that relative
# paths are resolved correctly during config loading.
oldcwd = None
if wd is None:
wd = cwd
else:
oldcwd = cwd
os.chdir(wd)
path = cmdutil.findrepo(wd) or b""
if not path:
lui = ui
else:
lui = ui.copy()
if rcutil.use_repo_hgrc():
_readsharedsourceconfig(lui, path)
lui.readconfig(os.path.join(path, b".hg", b"hgrc"), path)
lui.readconfig(os.path.join(path, b".hg", b"hgrc-not-shared"), path)
if rpath:
path = urlutil.get_clone_path(lui, rpath)[0]
lui = ui.copy()
if rcutil.use_repo_hgrc():
_readsharedsourceconfig(lui, path)
lui.readconfig(os.path.join(path, b".hg", b"hgrc"), path)
lui.readconfig(os.path.join(path, b".hg", b"hgrc-not-shared"), path)
if oldcwd:
os.chdir(oldcwd)
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(b"ui", b"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, b'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[b'cwd']
if cwd:
os.chdir(cwd)
rpath = req.earlyoptions[b'repository']
path, lui = _getlocal(ui, rpath)
uis = {ui, lui}
if req.repo:
uis.add(req.repo.ui)
if (
req.earlyoptions[b'verbose']
or req.earlyoptions[b'debug']
or req.earlyoptions[b'quiet']
):
for opt in (b'verbose', b'debug', b'quiet'):
val = pycompat.bytestr(bool(req.earlyoptions[opt]))
for ui_ in uis:
ui_.setconfig(b'ui', opt, val, b'--' + opt)
if req.earlyoptions[b'profile']:
for ui_ in uis:
ui_.setconfig(b'profiling', b'enabled', b'true', b'--profile')
elif req.earlyoptions[b'profile'] is False:
# Check for it being set already, so that we don't pollute the config
# with this when using chg in the very common case that it's not
# enabled.
if lui.configbool(b'profiling', b'enabled'):
# Only do this on lui so that `chg foo` with a user config setting
# profiling.enabled=1 still shows profiling information (chg will
# specify `--no-profile` when `hg serve` is starting up, we don't
# want that to propagate to every later invocation).
lui.setconfig(b'profiling', b'enabled', b'false', b'--no-profile')
profile = lui.configbool(b'profiling', b'enabled')
with profiling.profile(lui, enabled=profile) 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:
# no additional configs will be set, set up the ui instances
for ui_ in uis:
extensions.populateui(ui_)
return shellaliasfn()
# check for fallback encoding
fallback = lui.config(b'ui', b'fallbackencoding')
if fallback:
encoding.fallbackencoding = fallback
fullargs = args
cmd, func, args, options, cmdoptions = _parse(lui, args)
# store the canonical command name in request object for later access
req.canonical_command = cmd
if options[b"config"] != req.earlyoptions[b"config"]:
raise error.InputError(_(b"option --config may not be abbreviated"))
if options[b"cwd"] != req.earlyoptions[b"cwd"]:
raise error.InputError(_(b"option --cwd may not be abbreviated"))
if options[b"repository"] != req.earlyoptions[b"repository"]:
raise error.InputError(
_(
b"option -R has to be separated from other options (e.g. not "
b"-qR) and --repository may only be abbreviated as --repo"
)
)
if options[b"debugger"] != req.earlyoptions[b"debugger"]:
raise error.InputError(
_(b"option --debugger may not be abbreviated")
)
# don't validate --profile/--traceback, which can be enabled from now
if options[b"encoding"]:
encoding.encoding = options[b"encoding"]
if options[b"encodingmode"]:
encoding.encodingmode = options[b"encodingmode"]
if options[b"time"]:
def get_times():
t = os.times()
if t[4] == 0.0:
# Windows leaves this as zero, so use time.perf_counter()
t = (t[0], t[1], t[2], t[3], util.timer())
return t
s = get_times()
def print_time():
t = get_times()
ui.warn(
_(b"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[b"profile"]:
profiler.start()
# if abbreviated version of this were used, take them in account, now
if options[b'verbose'] or options[b'debug'] or options[b'quiet']:
for opt in (b'verbose', b'debug', b'quiet'):
if options[opt] == req.earlyoptions[opt]:
continue
val = pycompat.bytestr(bool(options[opt]))
for ui_ in uis:
ui_.setconfig(b'ui', opt, val, b'--' + opt)
if options[b'traceback']:
for ui_ in uis:
ui_.setconfig(b'ui', b'traceback', b'on', b'--traceback')
if options[b'noninteractive']:
for ui_ in uis:
ui_.setconfig(b'ui', b'interactive', b'off', b'-y')
if cmdoptions.get(b'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[b'color']
for ui_ in uis:
if coloropt:
ui_.setconfig(b'ui', b'color', coloropt, b'--color')
color.setup(ui_)
if stringutil.parsebool(options[b'pager']):
# ui.pager() expects 'internal-always-' prefix in this case
ui.pager(b'internal-always-' + cmd)
elif options[b'pager'] != b'auto':
for ui_ in uis:
ui_.disablepager()
# configs are fully loaded, set up the ui instances
for ui_ in uis:
extensions.populateui(ui_)
if options[b'version']:
return commands.version_(ui)
if options[b'help']:
return commands.help_(ui, cmd, command=cmd is not None)
elif not cmd:
return commands.help_(ui, b'shortlist')
repo = None
cmdpats = args[:]
assert func is not None # help out pytype
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
repo.ui.fmsg = ui.fmsg
else:
try:
repo = hg.repository(
ui,
path=path,
presetupfuncs=req.prereposetups,
intents=func.intents,
)
if not repo.local():
raise error.InputError(
_(b"repository '%s' is not local") % path
)
repo.ui.setconfig(
b"bundle", b"mainreporoot", repo.root, b'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 = [b'--repository', guess] + fullargs
req.earlyoptions[b'repository'] = guess
return _dispatch(req)
if not path:
raise error.InputError(
_(
b"no repository found in"
b" '%s' (.hg not found)"
)
% encoding.getcwd()
)
raise
if repo:
ui = repo.ui
if options[b'hidden']:
repo = repo.unfiltered()
args.insert(0, repo)
elif rpath:
ui.warn(_(b"warning: --repository ignored\n"))
msg = _formatargs(fullargs)
ui.log(b"command", b'%s\n', msg)
strcmdopt = pycompat.strkwargs(cmdoptions)
d = lambda: util.checksignature(func)(ui, *args, **strcmdopt)
try:
return runcommand(
lui, repo, cmd, fullargs, ui, options, d, cmdpats, cmdoptions
)
finally:
if repo and repo != req.repo:
repo.close()
def _runcommand(ui, options, cmd, cmdfunc):
"""Run a command function, possibly with profiling enabled."""
try:
with tracing.log("Running %s command" % cmd):
return cmdfunc()
except error.SignatureError:
raise error.CommandError(cmd, _(b'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, b'', b''
if ui.config(b'ui', b'supportcontact') is None:
for name, mod in extensions.extensions():
# 'testedwith' should be bytes, but not all extensions are ported
# to py3 and we don't want UnicodeException because of that.
testedwith = stringutil.forcebytestr(
getattr(mod, 'testedwith', b'')
)
version = extensions.moduleversion(mod)
report = getattr(mod, 'buglink', _(b'the extension author.'))
if not testedwith.strip():
# We found an untested extension. It's likely the culprit.
worst = name, b'unknown', report, version
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, version
if worst[0] is not None:
name, testedwith, report, version = worst
if not isinstance(testedwith, (bytes, str)):
testedwith = b'.'.join(
[stringutil.forcebytestr(c) for c in testedwith]
)
extver = version or _(b"(version N/A)")
warning = _(
b'** Unknown exception encountered with '
b'possibly-broken third-party extension "%s" %s\n'
b'** which supports versions %s of Mercurial.\n'
b'** Please disable "%s" and try your action again.\n'
b'** If that fixes the bug please report it to %s\n'
) % (name, extver, testedwith, name, stringutil.forcebytestr(report))
else:
bugtracker = ui.config(b'ui', b'supportcontact')
if bugtracker is None:
bugtracker = _(b"https://mercurial-scm.org/wiki/BugTracker")
warning = (
_(
b"** unknown exception encountered, "
b"please report by visiting\n** "
)
+ bugtracker
+ b'\n'
)
sysversion = pycompat.sysbytes(sys.version).replace(b'\n', b'')
def ext_with_ver(x):
ext = x[0]
ver = extensions.moduleversion(x[1])
if ver:
ext += b' ' + ver
return ext
warning += (
(_(b"** Python %s\n") % sysversion)
+ (_(b"** Mercurial Distributed SCM (version %s)\n") % util.version())
+ (
_(b"** Extensions loaded: %s\n")
% b", ".join(
[ext_with_ver(x) for x in sorted(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(
b"commandexception",
b"%s\n%s\n",
warning,
pycompat.sysbytes(traceback.format_exc()),
)
ui.warn(warning)
return False # re-raise the exception