error: get Abort from 'error' instead of 'util'
The home of 'Abort' is 'error' not 'util' however, a lot of code seems to be
confused about that and gives all the credit to 'util' instead of the
hardworking 'error'. In a spirit of equity, we break the cycle of injustice and
give back to 'error' the respect it deserves. And screw that 'util' poser.
For great justice.
# ui.py - user interface bits for mercurial
#
# Copyright 2005-2007 Matt Mackall <mpm@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.
from __future__ import absolute_import
import errno
import getpass
import inspect
import os
import socket
import sys
import tempfile
import traceback
from .i18n import _
from .node import hex
from . import (
config,
error,
formatter,
progress,
scmutil,
util,
)
samplehgrcs = {
'user':
"""# example user config (see "hg help config" for more info)
[ui]
# name and email, e.g.
# username = Jane Doe <jdoe@example.com>
username =
[extensions]
# uncomment these lines to enable some popular extensions
# (see "hg help extensions" for more info)
#
# pager =
# progress =
# color =""",
'cloned':
"""# example repository config (see "hg help config" for more info)
[paths]
default = %s
# path aliases to other clones of this repo in URLs or filesystem paths
# (see "hg help config.paths" for more info)
#
# default-push = ssh://jdoe@example.net/hg/jdoes-fork
# my-fork = ssh://jdoe@example.net/hg/jdoes-fork
# my-clone = /home/jdoe/jdoes-clone
[ui]
# name and email (local to this repository, optional), e.g.
# username = Jane Doe <jdoe@example.com>
""",
'local':
"""# example repository config (see "hg help config" for more info)
[paths]
# path aliases to other clones of this repo in URLs or filesystem paths
# (see "hg help config.paths" for more info)
#
# default = http://example.com/hg/example-repo
# default-push = ssh://jdoe@example.net/hg/jdoes-fork
# my-fork = ssh://jdoe@example.net/hg/jdoes-fork
# my-clone = /home/jdoe/jdoes-clone
[ui]
# name and email (local to this repository, optional), e.g.
# username = Jane Doe <jdoe@example.com>
""",
'global':
"""# example system-wide hg config (see "hg help config" for more info)
[extensions]
# uncomment these lines to enable some popular extensions
# (see "hg help extensions" for more info)
#
# blackbox =
# progress =
# color =
# pager =""",
}
class ui(object):
def __init__(self, src=None):
# _buffers: used for temporary capture of output
self._buffers = []
# _bufferstates:
# should the temporary capture include stderr and subprocess output
self._bufferstates = []
self.quiet = self.verbose = self.debugflag = self.tracebackflag = False
self._reportuntrusted = True
self._ocfg = config.config() # overlay
self._tcfg = config.config() # trusted
self._ucfg = config.config() # untrusted
self._trustusers = set()
self._trustgroups = set()
self.callhooks = True
if src:
self.fout = src.fout
self.ferr = src.ferr
self.fin = src.fin
self._tcfg = src._tcfg.copy()
self._ucfg = src._ucfg.copy()
self._ocfg = src._ocfg.copy()
self._trustusers = src._trustusers.copy()
self._trustgroups = src._trustgroups.copy()
self.environ = src.environ
self.callhooks = src.callhooks
self.fixconfig()
else:
self.fout = sys.stdout
self.ferr = sys.stderr
self.fin = sys.stdin
# shared read-only environment
self.environ = os.environ
# we always trust global config files
for f in scmutil.rcpath():
self.readconfig(f, trust=True)
def copy(self):
return self.__class__(self)
def formatter(self, topic, opts):
return formatter.formatter(self, topic, opts)
def _trusted(self, fp, f):
st = util.fstat(fp)
if util.isowner(st):
return True
tusers, tgroups = self._trustusers, self._trustgroups
if '*' in tusers or '*' in tgroups:
return True
user = util.username(st.st_uid)
group = util.groupname(st.st_gid)
if user in tusers or group in tgroups or user == util.username():
return True
if self._reportuntrusted:
self.warn(_('not trusting file %s from untrusted '
'user %s, group %s\n') % (f, user, group))
return False
def readconfig(self, filename, root=None, trust=False,
sections=None, remap=None):
try:
fp = open(filename)
except IOError:
if not sections: # ignore unless we were looking for something
return
raise
cfg = config.config()
trusted = sections or trust or self._trusted(fp, filename)
try:
cfg.read(filename, fp, sections=sections, remap=remap)
fp.close()
except error.ConfigError as inst:
if trusted:
raise
self.warn(_("ignored: %s\n") % str(inst))
if self.plain():
for k in ('debug', 'fallbackencoding', 'quiet', 'slash',
'logtemplate', 'statuscopies', 'style',
'traceback', 'verbose'):
if k in cfg['ui']:
del cfg['ui'][k]
for k, v in cfg.items('defaults'):
del cfg['defaults'][k]
# Don't remove aliases from the configuration if in the exceptionlist
if self.plain('alias'):
for k, v in cfg.items('alias'):
del cfg['alias'][k]
if self.plain('revsetalias'):
for k, v in cfg.items('revsetalias'):
del cfg['revsetalias'][k]
if trusted:
self._tcfg.update(cfg)
self._tcfg.update(self._ocfg)
self._ucfg.update(cfg)
self._ucfg.update(self._ocfg)
if root is None:
root = os.path.expanduser('~')
self.fixconfig(root=root)
def fixconfig(self, root=None, section=None):
if section in (None, 'paths'):
# expand vars and ~
# translate paths relative to root (or home) into absolute paths
root = root or os.getcwd()
for c in self._tcfg, self._ucfg, self._ocfg:
for n, p in c.items('paths'):
if not p:
continue
if '%%' in p:
self.warn(_("(deprecated '%%' in path %s=%s from %s)\n")
% (n, p, self.configsource('paths', n)))
p = p.replace('%%', '%')
p = util.expandpath(p)
if not util.hasscheme(p) and not os.path.isabs(p):
p = os.path.normpath(os.path.join(root, p))
c.set("paths", n, p)
if section in (None, 'ui'):
# update ui options
self.debugflag = self.configbool('ui', 'debug')
self.verbose = self.debugflag or self.configbool('ui', 'verbose')
self.quiet = not self.debugflag and self.configbool('ui', 'quiet')
if self.verbose and self.quiet:
self.quiet = self.verbose = False
self._reportuntrusted = self.debugflag or self.configbool("ui",
"report_untrusted", True)
self.tracebackflag = self.configbool('ui', 'traceback', False)
if section in (None, 'trusted'):
# update trust information
self._trustusers.update(self.configlist('trusted', 'users'))
self._trustgroups.update(self.configlist('trusted', 'groups'))
def backupconfig(self, section, item):
return (self._ocfg.backup(section, item),
self._tcfg.backup(section, item),
self._ucfg.backup(section, item),)
def restoreconfig(self, data):
self._ocfg.restore(data[0])
self._tcfg.restore(data[1])
self._ucfg.restore(data[2])
def setconfig(self, section, name, value, source=''):
for cfg in (self._ocfg, self._tcfg, self._ucfg):
cfg.set(section, name, value, source)
self.fixconfig(section=section)
def _data(self, untrusted):
return untrusted and self._ucfg or self._tcfg
def configsource(self, section, name, untrusted=False):
return self._data(untrusted).source(section, name) or 'none'
def config(self, section, name, default=None, untrusted=False):
if isinstance(name, list):
alternates = name
else:
alternates = [name]
for n in alternates:
value = self._data(untrusted).get(section, n, None)
if value is not None:
name = n
break
else:
value = default
if self.debugflag and not untrusted and self._reportuntrusted:
for n in alternates:
uvalue = self._ucfg.get(section, n)
if uvalue is not None and uvalue != value:
self.debug("ignoring untrusted configuration option "
"%s.%s = %s\n" % (section, n, uvalue))
return value
def configpath(self, section, name, default=None, untrusted=False):
'get a path config item, expanded relative to repo root or config file'
v = self.config(section, name, default, untrusted)
if v is None:
return None
if not os.path.isabs(v) or "://" not in v:
src = self.configsource(section, name, untrusted)
if ':' in src:
base = os.path.dirname(src.rsplit(':')[0])
v = os.path.join(base, os.path.expanduser(v))
return v
def configbool(self, section, name, default=False, untrusted=False):
"""parse a configuration element as a boolean
>>> u = ui(); s = 'foo'
>>> u.setconfig(s, 'true', 'yes')
>>> u.configbool(s, 'true')
True
>>> u.setconfig(s, 'false', 'no')
>>> u.configbool(s, 'false')
False
>>> u.configbool(s, 'unknown')
False
>>> u.configbool(s, 'unknown', True)
True
>>> u.setconfig(s, 'invalid', 'somevalue')
>>> u.configbool(s, 'invalid')
Traceback (most recent call last):
...
ConfigError: foo.invalid is not a boolean ('somevalue')
"""
v = self.config(section, name, None, untrusted)
if v is None:
return default
if isinstance(v, bool):
return v
b = util.parsebool(v)
if b is None:
raise error.ConfigError(_("%s.%s is not a boolean ('%s')")
% (section, name, v))
return b
def configint(self, section, name, default=None, untrusted=False):
"""parse a configuration element as an integer
>>> u = ui(); s = 'foo'
>>> u.setconfig(s, 'int1', '42')
>>> u.configint(s, 'int1')
42
>>> u.setconfig(s, 'int2', '-42')
>>> u.configint(s, 'int2')
-42
>>> u.configint(s, 'unknown', 7)
7
>>> u.setconfig(s, 'invalid', 'somevalue')
>>> u.configint(s, 'invalid')
Traceback (most recent call last):
...
ConfigError: foo.invalid is not an integer ('somevalue')
"""
v = self.config(section, name, None, untrusted)
if v is None:
return default
try:
return int(v)
except ValueError:
raise error.ConfigError(_("%s.%s is not an integer ('%s')")
% (section, name, v))
def configbytes(self, section, name, default=0, untrusted=False):
"""parse a configuration element as a quantity in bytes
Units can be specified as b (bytes), k or kb (kilobytes), m or
mb (megabytes), g or gb (gigabytes).
>>> u = ui(); s = 'foo'
>>> u.setconfig(s, 'val1', '42')
>>> u.configbytes(s, 'val1')
42
>>> u.setconfig(s, 'val2', '42.5 kb')
>>> u.configbytes(s, 'val2')
43520
>>> u.configbytes(s, 'unknown', '7 MB')
7340032
>>> u.setconfig(s, 'invalid', 'somevalue')
>>> u.configbytes(s, 'invalid')
Traceback (most recent call last):
...
ConfigError: foo.invalid is not a byte quantity ('somevalue')
"""
value = self.config(section, name)
if value is None:
if not isinstance(default, str):
return default
value = default
try:
return util.sizetoint(value)
except error.ParseError:
raise error.ConfigError(_("%s.%s is not a byte quantity ('%s')")
% (section, name, value))
def configlist(self, section, name, default=None, untrusted=False):
"""parse a configuration element as a list of comma/space separated
strings
>>> u = ui(); s = 'foo'
>>> u.setconfig(s, 'list1', 'this,is "a small" ,test')
>>> u.configlist(s, 'list1')
['this', 'is', 'a small', 'test']
"""
def _parse_plain(parts, s, offset):
whitespace = False
while offset < len(s) and (s[offset].isspace() or s[offset] == ','):
whitespace = True
offset += 1
if offset >= len(s):
return None, parts, offset
if whitespace:
parts.append('')
if s[offset] == '"' and not parts[-1]:
return _parse_quote, parts, offset + 1
elif s[offset] == '"' and parts[-1][-1] == '\\':
parts[-1] = parts[-1][:-1] + s[offset]
return _parse_plain, parts, offset + 1
parts[-1] += s[offset]
return _parse_plain, parts, offset + 1
def _parse_quote(parts, s, offset):
if offset < len(s) and s[offset] == '"': # ""
parts.append('')
offset += 1
while offset < len(s) and (s[offset].isspace() or
s[offset] == ','):
offset += 1
return _parse_plain, parts, offset
while offset < len(s) and s[offset] != '"':
if (s[offset] == '\\' and offset + 1 < len(s)
and s[offset + 1] == '"'):
offset += 1
parts[-1] += '"'
else:
parts[-1] += s[offset]
offset += 1
if offset >= len(s):
real_parts = _configlist(parts[-1])
if not real_parts:
parts[-1] = '"'
else:
real_parts[0] = '"' + real_parts[0]
parts = parts[:-1]
parts.extend(real_parts)
return None, parts, offset
offset += 1
while offset < len(s) and s[offset] in [' ', ',']:
offset += 1
if offset < len(s):
if offset + 1 == len(s) and s[offset] == '"':
parts[-1] += '"'
offset += 1
else:
parts.append('')
else:
return None, parts, offset
return _parse_plain, parts, offset
def _configlist(s):
s = s.rstrip(' ,')
if not s:
return []
parser, parts, offset = _parse_plain, [''], 0
while parser:
parser, parts, offset = parser(parts, s, offset)
return parts
result = self.config(section, name, untrusted=untrusted)
if result is None:
result = default or []
if isinstance(result, basestring):
result = _configlist(result.lstrip(' ,\n'))
if result is None:
result = default or []
return result
def has_section(self, section, untrusted=False):
'''tell whether section exists in config.'''
return section in self._data(untrusted)
def configitems(self, section, untrusted=False):
items = self._data(untrusted).items(section)
if self.debugflag and not untrusted and self._reportuntrusted:
for k, v in self._ucfg.items(section):
if self._tcfg.get(section, k) != v:
self.debug("ignoring untrusted configuration option "
"%s.%s = %s\n" % (section, k, v))
return items
def walkconfig(self, untrusted=False):
cfg = self._data(untrusted)
for section in cfg.sections():
for name, value in self.configitems(section, untrusted):
yield section, name, value
def plain(self, feature=None):
'''is plain mode active?
Plain mode means that all configuration variables which affect
the behavior and output of Mercurial should be
ignored. Additionally, the output should be stable,
reproducible and suitable for use in scripts or applications.
The only way to trigger plain mode is by setting either the
`HGPLAIN' or `HGPLAINEXCEPT' environment variables.
The return value can either be
- False if HGPLAIN is not set, or feature is in HGPLAINEXCEPT
- True otherwise
'''
if 'HGPLAIN' not in os.environ and 'HGPLAINEXCEPT' not in os.environ:
return False
exceptions = os.environ.get('HGPLAINEXCEPT', '').strip().split(',')
if feature and exceptions:
return feature not in exceptions
return True
def username(self):
"""Return default username to be used in commits.
Searched in this order: $HGUSER, [ui] section of hgrcs, $EMAIL
and stop searching if one of these is set.
If not found and ui.askusername is True, ask the user, else use
($LOGNAME or $USER or $LNAME or $USERNAME) + "@full.hostname".
"""
user = os.environ.get("HGUSER")
if user is None:
user = self.config("ui", ["username", "user"])
if user is not None:
user = os.path.expandvars(user)
if user is None:
user = os.environ.get("EMAIL")
if user is None and self.configbool("ui", "askusername"):
user = self.prompt(_("enter a commit username:"), default=None)
if user is None and not self.interactive():
try:
user = '%s@%s' % (util.getuser(), socket.getfqdn())
self.warn(_("no username found, using '%s' instead\n") % user)
except KeyError:
pass
if not user:
raise error.Abort(_('no username supplied'),
hint=_('use "hg config --edit" '
'to set your username'))
if "\n" in user:
raise error.Abort(_("username %s contains a newline\n")
% repr(user))
return user
def shortuser(self, user):
"""Return a short representation of a user name or email address."""
if not self.verbose:
user = util.shortuser(user)
return user
def expandpath(self, loc, default=None):
"""Return repository location relative to cwd or from [paths]"""
try:
p = self.paths.getpath(loc)
if p:
return p.rawloc
except error.RepoError:
pass
if default:
try:
p = self.paths.getpath(default)
if p:
return p.rawloc
except error.RepoError:
pass
return loc
@util.propertycache
def paths(self):
return paths(self)
def pushbuffer(self, error=False, subproc=False):
"""install a buffer to capture standard output of the ui object
If error is True, the error output will be captured too.
If subproc is True, output from subprocesses (typically hooks) will be
captured too."""
self._buffers.append([])
self._bufferstates.append((error, subproc))
def popbuffer(self, labeled=False):
'''pop the last buffer and return the buffered output
If labeled is True, any labels associated with buffered
output will be handled. By default, this has no effect
on the output returned, but extensions and GUI tools may
handle this argument and returned styled output. If output
is being buffered so it can be captured and parsed or
processed, labeled should not be set to True.
'''
self._bufferstates.pop()
return "".join(self._buffers.pop())
def write(self, *args, **opts):
'''write args to output
By default, this method simply writes to the buffer or stdout,
but extensions or GUI tools may override this method,
write_err(), popbuffer(), and label() to style output from
various parts of hg.
An optional keyword argument, "label", can be passed in.
This should be a string containing label names separated by
space. Label names take the form of "topic.type". For example,
ui.debug() issues a label of "ui.debug".
When labeling output for a specific command, a label of
"cmdname.type" is recommended. For example, status issues
a label of "status.modified" for modified files.
'''
self._progclear()
if self._buffers:
self._buffers[-1].extend([str(a) for a in args])
else:
for a in args:
self.fout.write(str(a))
def write_err(self, *args, **opts):
self._progclear()
try:
if self._bufferstates and self._bufferstates[-1][0]:
return self.write(*args, **opts)
if not getattr(self.fout, 'closed', False):
self.fout.flush()
for a in args:
self.ferr.write(str(a))
# stderr may be buffered under win32 when redirected to files,
# including stdout.
if not getattr(self.ferr, 'closed', False):
self.ferr.flush()
except IOError as inst:
if inst.errno not in (errno.EPIPE, errno.EIO, errno.EBADF):
raise
def flush(self):
try: self.fout.flush()
except (IOError, ValueError): pass
try: self.ferr.flush()
except (IOError, ValueError): pass
def _isatty(self, fh):
if self.configbool('ui', 'nontty', False):
return False
return util.isatty(fh)
def interactive(self):
'''is interactive input allowed?
An interactive session is a session where input can be reasonably read
from `sys.stdin'. If this function returns false, any attempt to read
from stdin should fail with an error, unless a sensible default has been
specified.
Interactiveness is triggered by the value of the `ui.interactive'
configuration variable or - if it is unset - when `sys.stdin' points
to a terminal device.
This function refers to input only; for output, see `ui.formatted()'.
'''
i = self.configbool("ui", "interactive", None)
if i is None:
# some environments replace stdin without implementing isatty
# usually those are non-interactive
return self._isatty(self.fin)
return i
def termwidth(self):
'''how wide is the terminal in columns?
'''
if 'COLUMNS' in os.environ:
try:
return int(os.environ['COLUMNS'])
except ValueError:
pass
return util.termwidth()
def formatted(self):
'''should formatted output be used?
It is often desirable to format the output to suite the output medium.
Examples of this are truncating long lines or colorizing messages.
However, this is not often not desirable when piping output into other
utilities, e.g. `grep'.
Formatted output is triggered by the value of the `ui.formatted'
configuration variable or - if it is unset - when `sys.stdout' points
to a terminal device. Please note that `ui.formatted' should be
considered an implementation detail; it is not intended for use outside
Mercurial or its extensions.
This function refers to output only; for input, see `ui.interactive()'.
This function always returns false when in plain mode, see `ui.plain()'.
'''
if self.plain():
return False
i = self.configbool("ui", "formatted", None)
if i is None:
# some environments replace stdout without implementing isatty
# usually those are non-interactive
return self._isatty(self.fout)
return i
def _readline(self, prompt=''):
if self._isatty(self.fin):
try:
# magically add command line editing support, where
# available
import readline
# force demandimport to really load the module
readline.read_history_file
# windows sometimes raises something other than ImportError
except Exception:
pass
# call write() so output goes through subclassed implementation
# e.g. color extension on Windows
self.write(prompt)
# instead of trying to emulate raw_input, swap (self.fin,
# self.fout) with (sys.stdin, sys.stdout)
oldin = sys.stdin
oldout = sys.stdout
sys.stdin = self.fin
sys.stdout = self.fout
# prompt ' ' must exist; otherwise readline may delete entire line
# - http://bugs.python.org/issue12833
line = raw_input(' ')
sys.stdin = oldin
sys.stdout = oldout
# When stdin is in binary mode on Windows, it can cause
# raw_input() to emit an extra trailing carriage return
if os.linesep == '\r\n' and line and line[-1] == '\r':
line = line[:-1]
return line
def prompt(self, msg, default="y"):
"""Prompt user with msg, read response.
If ui is not interactive, the default is returned.
"""
if not self.interactive():
self.write(msg, ' ', default, "\n")
return default
try:
r = self._readline(self.label(msg, 'ui.prompt'))
if not r:
r = default
if self.configbool('ui', 'promptecho'):
self.write(r, "\n")
return r
except EOFError:
raise error.Abort(_('response expected'))
@staticmethod
def extractchoices(prompt):
"""Extract prompt message and list of choices from specified prompt.
This returns tuple "(message, choices)", and "choices" is the
list of tuple "(response character, text without &)".
"""
parts = prompt.split('$$')
msg = parts[0].rstrip(' ')
choices = [p.strip(' ') for p in parts[1:]]
return (msg,
[(s[s.index('&') + 1].lower(), s.replace('&', '', 1))
for s in choices])
def promptchoice(self, prompt, default=0):
"""Prompt user with a message, read response, and ensure it matches
one of the provided choices. The prompt is formatted as follows:
"would you like fries with that (Yn)? $$ &Yes $$ &No"
The index of the choice is returned. Responses are case
insensitive. If ui is not interactive, the default is
returned.
"""
msg, choices = self.extractchoices(prompt)
resps = [r for r, t in choices]
while True:
r = self.prompt(msg, resps[default])
if r.lower() in resps:
return resps.index(r.lower())
self.write(_("unrecognized response\n"))
def getpass(self, prompt=None, default=None):
if not self.interactive():
return default
try:
self.write_err(self.label(prompt or _('password: '), 'ui.prompt'))
# disable getpass() only if explicitly specified. it's still valid
# to interact with tty even if fin is not a tty.
if self.configbool('ui', 'nontty'):
return self.fin.readline().rstrip('\n')
else:
return getpass.getpass('')
except EOFError:
raise error.Abort(_('response expected'))
def status(self, *msg, **opts):
'''write status message to output (if ui.quiet is False)
This adds an output label of "ui.status".
'''
if not self.quiet:
opts['label'] = opts.get('label', '') + ' ui.status'
self.write(*msg, **opts)
def warn(self, *msg, **opts):
'''write warning message to output (stderr)
This adds an output label of "ui.warning".
'''
opts['label'] = opts.get('label', '') + ' ui.warning'
self.write_err(*msg, **opts)
def note(self, *msg, **opts):
'''write note to output (if ui.verbose is True)
This adds an output label of "ui.note".
'''
if self.verbose:
opts['label'] = opts.get('label', '') + ' ui.note'
self.write(*msg, **opts)
def debug(self, *msg, **opts):
'''write debug message to output (if ui.debugflag is True)
This adds an output label of "ui.debug".
'''
if self.debugflag:
opts['label'] = opts.get('label', '') + ' ui.debug'
self.write(*msg, **opts)
def edit(self, text, user, extra=None, editform=None):
if extra is None:
extra = {}
(fd, name) = tempfile.mkstemp(prefix="hg-editor-", suffix=".txt",
text=True)
try:
f = os.fdopen(fd, "w")
f.write(text)
f.close()
environ = {'HGUSER': user}
if 'transplant_source' in extra:
environ.update({'HGREVISION': hex(extra['transplant_source'])})
for label in ('intermediate-source', 'source', 'rebase_source'):
if label in extra:
environ.update({'HGREVISION': extra[label]})
break
if editform:
environ.update({'HGEDITFORM': editform})
editor = self.geteditor()
self.system("%s \"%s\"" % (editor, name),
environ=environ,
onerr=error.Abort, errprefix=_("edit failed"))
f = open(name)
t = f.read()
f.close()
finally:
os.unlink(name)
return t
def system(self, cmd, environ=None, cwd=None, onerr=None, errprefix=None):
'''execute shell command with appropriate output stream. command
output will be redirected if fout is not stdout.
'''
out = self.fout
if any(s[1] for s in self._bufferstates):
out = self
return util.system(cmd, environ=environ, cwd=cwd, onerr=onerr,
errprefix=errprefix, out=out)
def traceback(self, exc=None, force=False):
'''print exception traceback if traceback printing enabled or forced.
only to call in exception handler. returns true if traceback
printed.'''
if self.tracebackflag or force:
if exc is None:
exc = sys.exc_info()
cause = getattr(exc[1], 'cause', None)
if cause is not None:
causetb = traceback.format_tb(cause[2])
exctb = traceback.format_tb(exc[2])
exconly = traceback.format_exception_only(cause[0], cause[1])
# exclude frame where 'exc' was chained and rethrown from exctb
self.write_err('Traceback (most recent call last):\n',
''.join(exctb[:-1]),
''.join(causetb),
''.join(exconly))
else:
output = traceback.format_exception(exc[0], exc[1], exc[2])
self.write_err(''.join(output))
return self.tracebackflag or force
def geteditor(self):
'''return editor to use'''
if sys.platform == 'plan9':
# vi is the MIPS instruction simulator on Plan 9. We
# instead default to E to plumb commit messages to
# avoid confusion.
editor = 'E'
else:
editor = 'vi'
return (os.environ.get("HGEDITOR") or
self.config("ui", "editor") or
os.environ.get("VISUAL") or
os.environ.get("EDITOR", editor))
@util.propertycache
def _progbar(self):
"""setup the progbar singleton to the ui object"""
if (self.quiet or self.debugflag
or self.configbool('progress', 'disable', False)
or not progress.shouldprint(self)):
return None
return getprogbar(self)
def _progclear(self):
"""clear progress bar output if any. use it before any output"""
if '_progbar' not in vars(self): # nothing loadef yet
return
if self._progbar is not None and self._progbar.printed:
self._progbar.clear()
def progress(self, topic, pos, item="", unit="", total=None):
'''show a progress message
With stock hg, this is simply a debug message that is hidden
by default, but with extensions or GUI tools it may be
visible. 'topic' is the current operation, 'item' is a
non-numeric marker of the current position (i.e. the currently
in-process file), 'pos' is the current numeric position (i.e.
revision, bytes, etc.), unit is a corresponding unit label,
and total is the highest expected pos.
Multiple nested topics may be active at a time.
All topics should be marked closed by setting pos to None at
termination.
'''
if self._progbar is not None:
self._progbar.progress(topic, pos, item=item, unit=unit,
total=total)
if pos is None or not self.configbool('progress', 'debug'):
return
if unit:
unit = ' ' + unit
if item:
item = ' ' + item
if total:
pct = 100.0 * pos / total
self.debug('%s:%s %s/%s%s (%4.2f%%)\n'
% (topic, item, pos, total, unit, pct))
else:
self.debug('%s:%s %s%s\n' % (topic, item, pos, unit))
def log(self, service, *msg, **opts):
'''hook for logging facility extensions
service should be a readily-identifiable subsystem, which will
allow filtering.
*msg should be a newline-terminated format string to log, and
then any values to %-format into that format string.
**opts currently has no defined meanings.
'''
def label(self, msg, label):
'''style msg based on supplied label
Like ui.write(), this just returns msg unchanged, but extensions
and GUI tools can override it to allow styling output without
writing it.
ui.write(s, 'label') is equivalent to
ui.write(ui.label(s, 'label')).
'''
return msg
def develwarn(self, msg):
"""issue a developer warning message"""
msg = 'devel-warn: ' + msg
if self.tracebackflag:
util.debugstacktrace(msg, 2, self.ferr, self.fout)
else:
curframe = inspect.currentframe()
calframe = inspect.getouterframes(curframe, 2)
self.write_err('%s at: %s:%s (%s)\n' % ((msg,) + calframe[2][1:4]))
class paths(dict):
"""Represents a collection of paths and their configs.
Data is initially derived from ui instances and the config files they have
loaded.
"""
def __init__(self, ui):
dict.__init__(self)
for name, loc in ui.configitems('paths'):
# No location is the same as not existing.
if not loc:
continue
# TODO ignore default-push once all consumers stop referencing it
# since it is handled specifically below.
self[name] = path(name, rawloc=loc)
# Handle default-push, which is a one-off that defines the push URL for
# the "default" path.
defaultpush = ui.config('paths', 'default-push')
if defaultpush and 'default' in self:
self['default']._pushloc = defaultpush
def getpath(self, name, default=None):
"""Return a ``path`` from a string, falling back to a default.
``name`` can be a named path or locations. Locations are filesystem
paths or URIs.
Returns None if ``name`` is not a registered path, a URI, or a local
path to a repo.
"""
# Only fall back to default if no path was requested.
if name is None:
if default:
try:
return self[default]
except KeyError:
return None
else:
return None
# Most likely empty string.
# This may need to raise in the future.
if not name:
return None
try:
return self[name]
except KeyError:
# Try to resolve as a local path or URI.
try:
return path(None, rawloc=name)
except ValueError:
raise error.RepoError(_('repository %s does not exist') %
name)
assert False
class path(object):
"""Represents an individual path and its configuration."""
def __init__(self, name, rawloc=None, pushloc=None):
"""Construct a path from its config options.
``name`` is the symbolic name of the path.
``rawloc`` is the raw location, as defined in the config.
``pushloc`` is the raw locations pushes should be made to.
If ``name`` is not defined, we require that the location be a) a local
filesystem path with a .hg directory or b) a URL. If not,
``ValueError`` is raised.
"""
if not rawloc:
raise ValueError('rawloc must be defined')
# Locations may define branches via syntax <base>#<branch>.
u = util.url(rawloc)
branch = None
if u.fragment:
branch = u.fragment
u.fragment = None
self.url = u
self.branch = branch
self.name = name
self.rawloc = rawloc
self.loc = str(u)
self._pushloc = pushloc
# When given a raw location but not a symbolic name, validate the
# location is valid.
if not name and not u.scheme and not self._isvalidlocalpath(self.loc):
raise ValueError('location is not a URL or path to a local '
'repo: %s' % rawloc)
def _isvalidlocalpath(self, path):
"""Returns True if the given path is a potentially valid repository.
This is its own function so that extensions can change the definition of
'valid' in this case (like when pulling from a git repo into a hg
one)."""
return os.path.isdir(os.path.join(path, '.hg'))
@property
def pushloc(self):
return self._pushloc or self.loc
# we instantiate one globally shared progress bar to avoid
# competing progress bars when multiple UI objects get created
_progresssingleton = None
def getprogbar(ui):
global _progresssingleton
if _progresssingleton is None:
# passing 'ui' object to the singleton is fishy,
# this is how the extension used to work but feel free to rework it.
_progresssingleton = progress.progbar(ui)
return _progresssingleton