# color.py color output for Mercurial commands
#
# Copyright (C) 2007 Kevin Christen <kevin.christen@gmail.com>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
'''colorize output from some commands
The color extension colorizes output from several Mercurial commands.
For example, the diff command shows additions in green and deletions
in red, while the status command shows modified files in magenta. Many
other commands have analogous colors. It is possible to customize
these colors.
Effects
-------
Other effects in addition to color, like bold and underlined text, are
also available. By default, the terminfo database is used to find the
terminal codes used to change color and effect. If terminfo is not
available, then effects are rendered with the ECMA-48 SGR control
function (aka ANSI escape codes).
The available effects in terminfo mode are 'blink', 'bold', 'dim',
'inverse', 'invisible', 'italic', 'standout', and 'underline'; in
ECMA-48 mode, the options are 'bold', 'inverse', 'italic', and
'underline'. How each is rendered depends on the terminal emulator.
Some may not be available for a given terminal type, and will be
silently ignored.
If the terminfo entry for your terminal is missing codes for an effect
or has the wrong codes, you can add or override those codes in your
configuration::
[color]
terminfo.dim = \E[2m
where '\E' is substituted with an escape character.
Labels
------
Text receives color effects depending on the labels that it has. Many
default Mercurial commands emit labelled text. You can also define
your own labels in templates using the label function, see :hg:`help
templates`. A single portion of text may have more than one label. In
that case, effects given to the last label will override any other
effects. This includes the special "none" effect, which nullifies
other effects.
Labels are normally invisible. In order to see these labels and their
position in the text, use the global --color=debug option. The same
anchor text may be associated to multiple labels, e.g.
[log.changeset changeset.secret|changeset: 22611:6f0a53c8f587]
The following are the default effects for some default labels. Default
effects may be overridden from your configuration file::
[color]
status.modified = blue bold underline red_background
status.added = green bold
status.removed = red bold blue_background
status.deleted = cyan bold underline
status.unknown = magenta bold underline
status.ignored = black bold
# 'none' turns off all effects
status.clean = none
status.copied = none
qseries.applied = blue bold underline
qseries.unapplied = black bold
qseries.missing = red bold
diff.diffline = bold
diff.extended = cyan bold
diff.file_a = red bold
diff.file_b = green bold
diff.hunk = magenta
diff.deleted = red
diff.inserted = green
diff.changed = white
diff.tab =
diff.trailingwhitespace = bold red_background
# Blank so it inherits the style of the surrounding label
changeset.public =
changeset.draft =
changeset.secret =
resolve.unresolved = red bold
resolve.resolved = green bold
bookmarks.active = green
branches.active = none
branches.closed = black bold
branches.current = green
branches.inactive = none
tags.normal = green
tags.local = black bold
rebase.rebased = blue
rebase.remaining = red bold
shelve.age = cyan
shelve.newest = green bold
shelve.name = blue bold
histedit.remaining = red bold
Custom colors
-------------
Because there are only eight standard colors, this module allows you
to define color names for other color slots which might be available
for your terminal type, assuming terminfo mode. For instance::
color.brightblue = 12
color.pink = 207
color.orange = 202
to set 'brightblue' to color slot 12 (useful for 16 color terminals
that have brighter colors defined in the upper eight) and, 'pink' and
'orange' to colors in 256-color xterm's default color cube. These
defined colors may then be used as any of the pre-defined eight,
including appending '_background' to set the background to that color.
Modes
-----
By default, the color extension will use ANSI mode (or win32 mode on
Windows) if it detects a terminal. To override auto mode (to enable
terminfo mode, for example), set the following configuration option::
[color]
mode = terminfo
Any value other than 'ansi', 'win32', 'terminfo', or 'auto' will
disable color.
Note that on some systems, terminfo mode may cause problems when using
color with the pager extension and less -R. less with the -R option
will only display ECMA-48 color codes, and terminfo mode may sometimes
emit codes that less doesn't understand. You can work around this by
either using ansi mode (or auto mode), or by using less -r (which will
pass through all terminal control codes, not just color control
codes).
On some systems (such as MSYS in Windows), the terminal may support
a different color mode than the pager (activated via the "pager"
extension). It is possible to define separate modes depending on whether
the pager is active::
[color]
mode = auto
pagermode = ansi
If ``pagermode`` is not defined, the ``mode`` will be used.
'''
from __future__ import absolute_import
from mercurial.i18n import _
from mercurial import (
cmdutil,
color,
commands,
dispatch,
encoding,
extensions,
pycompat,
subrepo,
ui as uimod,
util,
)
cmdtable = {}
command = cmdutil.command(cmdtable)
# Note for extension authors: ONLY specify testedwith = 'ships-with-hg-core' for
# extensions which SHIP WITH MERCURIAL. Non-mainline extensions should
# be specifying the version(s) of Mercurial they are tested with, or
# leave the attribute unspecified.
testedwith = 'ships-with-hg-core'
# 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}
def _terminfosetup(ui, mode):
'''Initialize terminfo data and the terminal if we're in terminfo mode.'''
# If we failed to load curses, we go ahead and return.
if not _terminfo_params:
return
# Otherwise, see what the config file says.
if mode not in ('auto', 'terminfo'):
return
_terminfo_params.update((key[6:], (False, int(val), ''))
for key, val in ui.configitems('color')
if key.startswith('color.'))
_terminfo_params.update((key[9:], (True, '', val.replace('\\E', '\x1b')))
for key, val in ui.configitems('color')
if key.startswith('terminfo.'))
try:
curses.setupterm()
except curses.error as e:
_terminfo_params.clear()
return
for key, (b, e, c) in _terminfo_params.items():
if not b:
continue
if not c and not curses.tigetstr(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 _terminfo_params[key]
if not curses.tigetstr('setaf') or not curses.tigetstr('setab'):
# Only warn about missing terminfo entries if we explicitly asked for
# terminfo mode.
if mode == "terminfo":
ui.warn(_("no terminfo entry for setab/setaf: reverting to "
"ECMA-48 color\n"))
_terminfo_params.clear()
def _modesetup(ui, coloropt):
if coloropt == 'debug':
return 'debug'
auto = (coloropt == 'auto')
always = not auto and util.parsebool(coloropt)
if not always and not auto:
return None
formatted = (always or (encoding.environ.get('TERM') != 'dumb'
and ui.formatted()))
mode = ui.config('color', 'mode', 'auto')
# If pager is active, color.pagermode overrides color.mode.
if getattr(ui, 'pageractive', False):
mode = ui.config('color', 'pagermode', mode)
realmode = mode
if mode == 'auto':
if pycompat.osname == 'nt':
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. 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.
if (term and 'xterm' in term) or not w32effects:
realmode = 'ansi'
else:
realmode = 'win32'
else:
realmode = 'ansi'
def modewarn():
# only warn if color.mode was explicitly set and we're in
# a formatted terminal
if mode == realmode and ui.formatted():
ui.warn(_('warning: failed to set color mode to %s\n') % mode)
if realmode == 'win32':
_terminfo_params.clear()
if not w32effects:
modewarn()
return None
_effects.update(w32effects)
elif realmode == 'ansi':
_terminfo_params.clear()
elif realmode == 'terminfo':
_terminfosetup(ui, mode)
if not _terminfo_params:
## 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
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.
_terminfo_params = {'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:
_terminfo_params = {}
def _effect_str(effect):
'''Helper function for render_effects().'''
bg = False
if effect.endswith('_background'):
bg = True
effect = effect[:-11]
try:
attr, val, termcode = _terminfo_params[effect]
except KeyError:
return ''
if attr:
if termcode:
return termcode
else:
return curses.tigetstr(val)
elif bg:
return curses.tparm(curses.tigetstr('setab'), val)
else:
return curses.tparm(curses.tigetstr('setaf'), val)
def render_effects(text, effects):
'Wrap text in commands to turn on each effect.'
if not text:
return text
if not _terminfo_params:
start = [str(_effects[e]) for e in ['none'] + effects.split()]
start = '\033[' + ';'.join(start) + 'm'
stop = '\033[' + str(_effects['none']) + 'm'
else:
start = ''.join(_effect_str(effect)
for effect in ['none'] + effects.split())
stop = _effect_str('none')
return ''.join([start, text, stop])
def valideffect(effect):
'Determine if the effect is valid or not.'
good = False
if not _terminfo_params and effect in _effects:
good = True
elif effect in _terminfo_params or effect[:-11] in _terminfo_params:
good = True
return good
def configstyles(ui):
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(e):
good.append(e)
else:
ui.warn(_("ignoring unknown color/effect %r "
"(configured in color.%s)\n")
% (e, status))
color._styles[status] = ' '.join(good)
class colorui(uimod.ui):
_colormode = 'ansi'
def write(self, *args, **opts):
if self._colormode is None:
return super(colorui, self).write(*args, **opts)
label = opts.get('label', '')
if self._buffers and not opts.get('prompt', False):
if self._bufferapplylabels:
self._buffers[-1].extend(self.label(a, label) for a in args)
else:
self._buffers[-1].extend(args)
elif self._colormode == 'win32':
for a in args:
win32print(a, super(colorui, self).write, **opts)
else:
return super(colorui, self).write(
*[self.label(a, label) for a in args], **opts)
def write_err(self, *args, **opts):
if self._colormode is None:
return super(colorui, self).write_err(*args, **opts)
label = opts.get('label', '')
if self._bufferstates and self._bufferstates[-1][0]:
return self.write(*args, **opts)
if self._colormode == 'win32':
for a in args:
win32print(a, super(colorui, self).write_err, **opts)
else:
return super(colorui, self).write_err(
*[self.label(a, label) for a in args], **opts)
def showlabel(self, msg, label):
if label and msg:
if msg[-1] == '\n':
return "[%s|%s]\n" % (label, msg[:-1])
else:
return "[%s|%s]" % (label, msg)
else:
return msg
def label(self, msg, label):
if self._colormode is None:
return super(colorui, self).label(msg, label)
if self._colormode == 'debug':
return self.showlabel(msg, label)
effects = []
for l in label.split():
s = color._styles.get(l, '')
if s:
effects.append(s)
elif valideffect(l):
effects.append(l)
effects = ' '.join(effects)
if effects:
return '\n'.join([render_effects(line, effects)
for line in msg.split('\n')])
return msg
def uisetup(ui):
if ui.plain():
return
if not isinstance(ui, colorui):
colorui.__bases__ = (ui.__class__,)
ui.__class__ = colorui
def colorcmd(orig, ui_, opts, cmd, cmdfunc):
mode = _modesetup(ui_, opts['color'])
colorui._colormode = mode
if mode and mode != 'debug':
configstyles(ui_)
return orig(ui_, opts, cmd, cmdfunc)
def colorgit(orig, gitsub, commands, env=None, stream=False, cwd=None):
if gitsub.ui._colormode and len(commands) and commands[0] == "diff":
# insert the argument in the front,
# the end of git diff arguments is used for paths
commands.insert(1, '--color')
return orig(gitsub, commands, env, stream, cwd)
extensions.wrapfunction(dispatch, '_runcommand', colorcmd)
extensions.wrapfunction(subrepo.gitsubrepo, '_gitnodir', colorgit)
def extsetup(ui):
commands.globalopts.append(
('', 'color', 'auto',
# i18n: 'always', 'auto', 'never', and 'debug' are keywords
# and should not be translated
_("when to colorize (boolean, always, auto, never, or debug)"),
_('TYPE')))
@command('debugcolor',
[('', 'style', None, _('show all configured styles'))],
'hg debugcolor')
def debugcolor(ui, repo, **opts):
"""show available color, effects or style"""
ui.write(('color mode: %s\n') % ui._colormode)
if opts.get('style'):
return _debugdisplaystyle(ui)
else:
return _debugdisplaycolor(ui)
def _debugdisplaycolor(ui):
oldstyle = color._styles.copy()
try:
color._styles.clear()
for effect in _effects.keys():
color._styles[effect] = effect
if _terminfo_params:
for k, v in ui.configitems('color'):
if k.startswith('color.'):
color._styles[k] = k[6:]
elif k.startswith('terminfo.'):
color._styles[k] = k[9:]
ui.write(_('available colors:\n'))
# sort label with a '_' after the other to group '_background' entry.
items = sorted(color._styles.items(),
key=lambda i: ('_' in i[0], i[0], i[1]))
for colorname, label in items:
ui.write(('%s\n') % colorname, label=label)
finally:
color._styles.clear()
color._styles.update(oldstyle)
def _debugdisplaystyle(ui):
ui.write(_('available style:\n'))
width = max(len(s) for s in color._styles)
for label, effects in sorted(color._styles.items()):
ui.write('%s' % label, label=label)
if effects:
# 50
ui.write(': ')
ui.write(' ' * (max(0, width - len(label))))
ui.write(', '.join(ui.label(e, e) for e in effects.split()))
ui.write('\n')
if pycompat.osname != 'nt':
w32effects = None
else:
import ctypes
import re
_kernel32 = ctypes.windll.kernel32
_WORD = ctypes.c_ushort
_INVALID_HANDLE_VALUE = -1
class _COORD(ctypes.Structure):
_fields_ = [('X', ctypes.c_short),
('Y', ctypes.c_short)]
class _SMALL_RECT(ctypes.Structure):
_fields_ = [('Left', ctypes.c_short),
('Top', ctypes.c_short),
('Right', ctypes.c_short),
('Bottom', ctypes.c_short)]
class _CONSOLE_SCREEN_BUFFER_INFO(ctypes.Structure):
_fields_ = [('dwSize', _COORD),
('dwCursorPosition', _COORD),
('wAttributes', _WORD),
('srWindow', _SMALL_RECT),
('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 = set([_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('\033\[([^m]*)m([^\033]*)(.*)',
re.MULTILINE | re.DOTALL)
def win32print(text, orig, **opts):
label = opts.get('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 = color._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('\033['):
text = '\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(';'):
if sattr:
attr = mapcolor(int(sattr), attr)
_kernel32.SetConsoleTextAttribute(stdout, attr)
orig(m.group(2), **opts)
m = re.match(ansire, m.group(3))
finally:
# Explicitly reset original attributes
_kernel32.SetConsoleTextAttribute(stdout, origattr)