rust: stop putting NULL_REVISION in MissingAncestors.bases
As noted in initial review of MissingAncestors, adding
NULL_REVISION in constructor in case the given `bases` is
empty wasn't really useful, yet it's been kept for identity
with the Python implementation
Differential Revision: https://phab.mercurial-scm.org/D5944
# utility for color output for Mercurial commands
#
# Copyright (C) 2007 Kevin Christen <kevin.christen@gmail.com> and other
#
# 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 re
from .i18n import _
from . import (
encoding,
pycompat,
)
from .utils import (
stringutil,
)
try:
import curses
# Mapping from effect name to terminfo attribute name (or raw code) or
# color number. This will also force-load the curses module.
_baseterminfoparams = {
'none': (True, 'sgr0', ''),
'standout': (True, 'smso', ''),
'underline': (True, 'smul', ''),
'reverse': (True, 'rev', ''),
'inverse': (True, 'rev', ''),
'blink': (True, 'blink', ''),
'dim': (True, 'dim', ''),
'bold': (True, 'bold', ''),
'invisible': (True, 'invis', ''),
'italic': (True, 'sitm', ''),
'black': (False, curses.COLOR_BLACK, ''),
'red': (False, curses.COLOR_RED, ''),
'green': (False, curses.COLOR_GREEN, ''),
'yellow': (False, curses.COLOR_YELLOW, ''),
'blue': (False, curses.COLOR_BLUE, ''),
'magenta': (False, curses.COLOR_MAGENTA, ''),
'cyan': (False, curses.COLOR_CYAN, ''),
'white': (False, curses.COLOR_WHITE, ''),
}
except ImportError:
curses = None
_baseterminfoparams = {}
# start and stop parameters for effects
_effects = {
'none': 0,
'black': 30,
'red': 31,
'green': 32,
'yellow': 33,
'blue': 34,
'magenta': 35,
'cyan': 36,
'white': 37,
'bold': 1,
'italic': 3,
'underline': 4,
'inverse': 7,
'dim': 2,
'black_background': 40,
'red_background': 41,
'green_background': 42,
'yellow_background': 43,
'blue_background': 44,
'purple_background': 45,
'cyan_background': 46,
'white_background': 47,
}
_defaultstyles = {
'grep.match': 'red bold',
'grep.linenumber': 'green',
'grep.rev': 'green',
'grep.change': 'green',
'grep.sep': 'cyan',
'grep.filename': 'magenta',
'grep.user': 'magenta',
'grep.date': 'magenta',
'bookmarks.active': 'green',
'branches.active': 'none',
'branches.closed': 'black bold',
'branches.current': 'green',
'branches.inactive': 'none',
'diff.changed': 'white',
'diff.deleted': 'red',
'diff.deleted.changed': 'red bold underline',
'diff.deleted.unchanged': 'red',
'diff.diffline': 'bold',
'diff.extended': 'cyan bold',
'diff.file_a': 'red bold',
'diff.file_b': 'green bold',
'diff.hunk': 'magenta',
'diff.inserted': 'green',
'diff.inserted.changed': 'green bold underline',
'diff.inserted.unchanged': 'green',
'diff.tab': '',
'diff.trailingwhitespace': 'bold red_background',
'changeset.public': '',
'changeset.draft': '',
'changeset.secret': '',
'diffstat.deleted': 'red',
'diffstat.inserted': 'green',
'formatvariant.name.mismatchconfig': 'red',
'formatvariant.name.mismatchdefault': 'yellow',
'formatvariant.name.uptodate': 'green',
'formatvariant.repo.mismatchconfig': 'red',
'formatvariant.repo.mismatchdefault': 'yellow',
'formatvariant.repo.uptodate': 'green',
'formatvariant.config.special': 'yellow',
'formatvariant.config.default': 'green',
'formatvariant.default': '',
'histedit.remaining': 'red bold',
'ui.addremove.added': 'green',
'ui.addremove.removed': 'red',
'ui.error': 'red',
'ui.prompt': 'yellow',
'log.changeset': 'yellow',
'patchbomb.finalsummary': '',
'patchbomb.from': 'magenta',
'patchbomb.to': 'cyan',
'patchbomb.subject': 'green',
'patchbomb.diffstats': '',
'rebase.rebased': 'blue',
'rebase.remaining': 'red bold',
'resolve.resolved': 'green bold',
'resolve.unresolved': 'red bold',
'shelve.age': 'cyan',
'shelve.newest': 'green bold',
'shelve.name': 'blue bold',
'status.added': 'green bold',
'status.clean': 'none',
'status.copied': 'none',
'status.deleted': 'cyan bold underline',
'status.ignored': 'black bold',
'status.modified': 'blue bold',
'status.removed': 'red bold',
'status.unknown': 'magenta bold underline',
'tags.normal': 'green',
'tags.local': 'black bold',
}
def loadcolortable(ui, extname, colortable):
_defaultstyles.update(colortable)
def _terminfosetup(ui, mode, formatted):
'''Initialize terminfo data and the terminal if we're in terminfo mode.'''
# If we failed to load curses, we go ahead and return.
if curses is None:
return
# Otherwise, see what the config file says.
if mode not in ('auto', 'terminfo'):
return
ui._terminfoparams.update(_baseterminfoparams)
for key, val in ui.configitems('color'):
if key.startswith('color.'):
newval = (False, int(val), '')
ui._terminfoparams[key[6:]] = newval
elif key.startswith('terminfo.'):
newval = (True, '', val.replace('\\E', '\x1b'))
ui._terminfoparams[key[9:]] = newval
try:
curses.setupterm()
except curses.error:
ui._terminfoparams.clear()
return
for key, (b, e, c) in ui._terminfoparams.copy().items():
if not b:
continue
if not c and not curses.tigetstr(pycompat.sysstr(e)):
# Most terminals don't support dim, invis, etc, so don't be
# noisy and use ui.debug().
ui.debug("no terminfo entry for %s\n" % e)
del ui._terminfoparams[key]
if not curses.tigetstr(r'setaf') or not curses.tigetstr(r'setab'):
# Only warn about missing terminfo entries if we explicitly asked for
# terminfo mode and we're in a formatted terminal.
if mode == "terminfo" and formatted:
ui.warn(_("no terminfo entry for setab/setaf: reverting to "
"ECMA-48 color\n"))
ui._terminfoparams.clear()
def setup(ui):
"""configure color on a ui
That function both set the colormode for the ui object and read
the configuration looking for custom colors and effect definitions."""
mode = _modesetup(ui)
ui._colormode = mode
if mode and mode != 'debug':
configstyles(ui)
def _modesetup(ui):
if ui.plain('color'):
return None
config = ui.config('ui', 'color')
if config == 'debug':
return 'debug'
auto = (config == 'auto')
always = False
if not auto and stringutil.parsebool(config):
# We want the config to behave like a boolean, "on" is actually auto,
# but "always" value is treated as a special case to reduce confusion.
if ui.configsource('ui', 'color') == '--color' or config == 'always':
always = True
else:
auto = True
if not always and not auto:
return None
formatted = (always or (encoding.environ.get('TERM') != 'dumb'
and ui.formatted()))
mode = ui.config('color', 'mode')
# If pager is active, color.pagermode overrides color.mode.
if getattr(ui, 'pageractive', False):
mode = ui.config('color', 'pagermode', mode)
realmode = mode
if pycompat.iswindows:
from . import win32
term = encoding.environ.get('TERM')
# TERM won't be defined in a vanilla cmd.exe environment.
# UNIX-like environments on Windows such as Cygwin and MSYS will
# set TERM. They appear to make a best effort attempt at setting it
# to something appropriate. However, not all environments with TERM
# defined support ANSI.
ansienviron = term and 'xterm' in term
if mode == 'auto':
# Since "ansi" could result in terminal gibberish, we error on the
# side of selecting "win32". However, if w32effects is not defined,
# we almost certainly don't support "win32", so don't even try.
# w32effects is not populated when stdout is redirected, so checking
# it first avoids win32 calls in a state known to error out.
if ansienviron or not w32effects or win32.enablevtmode():
realmode = 'ansi'
else:
realmode = 'win32'
# An empty w32effects is a clue that stdout is redirected, and thus
# cannot enable VT mode.
elif mode == 'ansi' and w32effects and not ansienviron:
win32.enablevtmode()
elif mode == 'auto':
realmode = 'ansi'
def modewarn():
# only warn if color.mode was explicitly set and we're in
# a formatted terminal
if mode == realmode and formatted:
ui.warn(_('warning: failed to set color mode to %s\n') % mode)
if realmode == 'win32':
ui._terminfoparams.clear()
if not w32effects:
modewarn()
return None
elif realmode == 'ansi':
ui._terminfoparams.clear()
elif realmode == 'terminfo':
_terminfosetup(ui, mode, formatted)
if not ui._terminfoparams:
## FIXME Shouldn't we return None in this case too?
modewarn()
realmode = 'ansi'
else:
return None
if always or (auto and formatted):
return realmode
return None
def configstyles(ui):
ui._styles.update(_defaultstyles)
for status, cfgeffects in ui.configitems('color'):
if '.' not in status or status.startswith(('color.', 'terminfo.')):
continue
cfgeffects = ui.configlist('color', status)
if cfgeffects:
good = []
for e in cfgeffects:
if valideffect(ui, e):
good.append(e)
else:
ui.warn(_("ignoring unknown color/effect %s "
"(configured in color.%s)\n")
% (stringutil.pprint(e), status))
ui._styles[status] = ' '.join(good)
def _activeeffects(ui):
'''Return the effects map for the color mode set on the ui.'''
if ui._colormode == 'win32':
return w32effects
elif ui._colormode is not None:
return _effects
return {}
def valideffect(ui, effect):
'Determine if the effect is valid or not.'
return ((not ui._terminfoparams and effect in _activeeffects(ui))
or (effect in ui._terminfoparams
or effect[:-11] in ui._terminfoparams))
def _effect_str(ui, effect):
'''Helper function for render_effects().'''
bg = False
if effect.endswith('_background'):
bg = True
effect = effect[:-11]
try:
attr, val, termcode = ui._terminfoparams[effect]
except KeyError:
return ''
if attr:
if termcode:
return termcode
else:
return curses.tigetstr(pycompat.sysstr(val))
elif bg:
return curses.tparm(curses.tigetstr(r'setab'), val)
else:
return curses.tparm(curses.tigetstr(r'setaf'), val)
def _mergeeffects(text, start, stop):
"""Insert start sequence at every occurrence of stop sequence
>>> s = _mergeeffects(b'cyan', b'[C]', b'|')
>>> s = _mergeeffects(s + b'yellow', b'[Y]', b'|')
>>> s = _mergeeffects(b'ma' + s + b'genta', b'[M]', b'|')
>>> s = _mergeeffects(b'red' + s, b'[R]', b'|')
>>> s
'[R]red[M]ma[Y][C]cyan|[R][M][Y]yellow|[R][M]genta|'
"""
parts = []
for t in text.split(stop):
if not t:
continue
parts.extend([start, t, stop])
return ''.join(parts)
def _render_effects(ui, text, effects):
'Wrap text in commands to turn on each effect.'
if not text:
return text
if ui._terminfoparams:
start = ''.join(_effect_str(ui, effect)
for effect in ['none'] + effects.split())
stop = _effect_str(ui, 'none')
else:
activeeffects = _activeeffects(ui)
start = [pycompat.bytestr(activeeffects[e])
for e in ['none'] + effects.split()]
start = '\033[' + ';'.join(start) + 'm'
stop = '\033[' + pycompat.bytestr(activeeffects['none']) + 'm'
return _mergeeffects(text, start, stop)
_ansieffectre = re.compile(br'\x1b\[[0-9;]*m')
def stripeffects(text):
"""Strip ANSI control codes which could be inserted by colorlabel()"""
return _ansieffectre.sub('', text)
def colorlabel(ui, msg, label):
"""add color control code according to the mode"""
if ui._colormode == 'debug':
if label and msg:
if msg.endswith('\n'):
msg = "[%s|%s]\n" % (label, msg[:-1])
else:
msg = "[%s|%s]" % (label, msg)
elif ui._colormode is not None:
effects = []
for l in label.split():
s = ui._styles.get(l, '')
if s:
effects.append(s)
elif valideffect(ui, l):
effects.append(l)
effects = ' '.join(effects)
if effects:
msg = '\n'.join([_render_effects(ui, line, effects)
for line in msg.split('\n')])
return msg
w32effects = None
if pycompat.iswindows:
import ctypes
_kernel32 = ctypes.windll.kernel32
_WORD = ctypes.c_ushort
_INVALID_HANDLE_VALUE = -1
class _COORD(ctypes.Structure):
_fields_ = [(r'X', ctypes.c_short),
(r'Y', ctypes.c_short)]
class _SMALL_RECT(ctypes.Structure):
_fields_ = [(r'Left', ctypes.c_short),
(r'Top', ctypes.c_short),
(r'Right', ctypes.c_short),
(r'Bottom', ctypes.c_short)]
class _CONSOLE_SCREEN_BUFFER_INFO(ctypes.Structure):
_fields_ = [(r'dwSize', _COORD),
(r'dwCursorPosition', _COORD),
(r'wAttributes', _WORD),
(r'srWindow', _SMALL_RECT),
(r'dwMaximumWindowSize', _COORD)]
_STD_OUTPUT_HANDLE = 0xfffffff5 # (DWORD)-11
_STD_ERROR_HANDLE = 0xfffffff4 # (DWORD)-12
_FOREGROUND_BLUE = 0x0001
_FOREGROUND_GREEN = 0x0002
_FOREGROUND_RED = 0x0004
_FOREGROUND_INTENSITY = 0x0008
_BACKGROUND_BLUE = 0x0010
_BACKGROUND_GREEN = 0x0020
_BACKGROUND_RED = 0x0040
_BACKGROUND_INTENSITY = 0x0080
_COMMON_LVB_REVERSE_VIDEO = 0x4000
_COMMON_LVB_UNDERSCORE = 0x8000
# http://msdn.microsoft.com/en-us/library/ms682088%28VS.85%29.aspx
w32effects = {
'none': -1,
'black': 0,
'red': _FOREGROUND_RED,
'green': _FOREGROUND_GREEN,
'yellow': _FOREGROUND_RED | _FOREGROUND_GREEN,
'blue': _FOREGROUND_BLUE,
'magenta': _FOREGROUND_BLUE | _FOREGROUND_RED,
'cyan': _FOREGROUND_BLUE | _FOREGROUND_GREEN,
'white': _FOREGROUND_RED | _FOREGROUND_GREEN | _FOREGROUND_BLUE,
'bold': _FOREGROUND_INTENSITY,
'black_background': 0x100, # unused value > 0x0f
'red_background': _BACKGROUND_RED,
'green_background': _BACKGROUND_GREEN,
'yellow_background': _BACKGROUND_RED | _BACKGROUND_GREEN,
'blue_background': _BACKGROUND_BLUE,
'purple_background': _BACKGROUND_BLUE | _BACKGROUND_RED,
'cyan_background': _BACKGROUND_BLUE | _BACKGROUND_GREEN,
'white_background': (_BACKGROUND_RED | _BACKGROUND_GREEN |
_BACKGROUND_BLUE),
'bold_background': _BACKGROUND_INTENSITY,
'underline': _COMMON_LVB_UNDERSCORE, # double-byte charsets only
'inverse': _COMMON_LVB_REVERSE_VIDEO, # double-byte charsets only
}
passthrough = {_FOREGROUND_INTENSITY,
_BACKGROUND_INTENSITY,
_COMMON_LVB_UNDERSCORE,
_COMMON_LVB_REVERSE_VIDEO}
stdout = _kernel32.GetStdHandle(
_STD_OUTPUT_HANDLE) # don't close the handle returned
if stdout is None or stdout == _INVALID_HANDLE_VALUE:
w32effects = None
else:
csbi = _CONSOLE_SCREEN_BUFFER_INFO()
if not _kernel32.GetConsoleScreenBufferInfo(
stdout, ctypes.byref(csbi)):
# stdout may not support GetConsoleScreenBufferInfo()
# when called from subprocess or redirected
w32effects = None
else:
origattr = csbi.wAttributes
ansire = re.compile(br'\033\[([^m]*)m([^\033]*)(.*)',
re.MULTILINE | re.DOTALL)
def win32print(ui, writefunc, text, **opts):
label = opts.get(r'label', '')
attr = origattr
def mapcolor(val, attr):
if val == -1:
return origattr
elif val in passthrough:
return attr | val
elif val > 0x0f:
return (val & 0x70) | (attr & 0x8f)
else:
return (val & 0x07) | (attr & 0xf8)
# determine console attributes based on labels
for l in label.split():
style = ui._styles.get(l, '')
for effect in style.split():
try:
attr = mapcolor(w32effects[effect], attr)
except KeyError:
# w32effects could not have certain attributes so we skip
# them if not found
pass
# hack to ensure regexp finds data
if not text.startswith(b'\033['):
text = b'\033[m' + text
# Look for ANSI-like codes embedded in text
m = re.match(ansire, text)
try:
while m:
for sattr in m.group(1).split(b';'):
if sattr:
attr = mapcolor(int(sattr), attr)
ui.flush()
_kernel32.SetConsoleTextAttribute(stdout, attr)
writefunc(m.group(2))
m = re.match(ansire, m.group(3))
finally:
# Explicitly reset original attributes
ui.flush()
_kernel32.SetConsoleTextAttribute(stdout, origattr)