Mercurial > hg
view mercurial/color.py @ 46652:75832107ec07
hgtagsfnodes: refactor code to compute fnode into separate fn
I plan to use this code at one more place while fixing a bug caused by an
invalid fnode present in cache.
Differential Revision: https://phab.mercurial-scm.org/D10013
author | Pulkit Goyal <7895pulkit@gmail.com> |
---|---|
date | Tue, 16 Feb 2021 18:43:42 +0530 |
parents | d3f776c4760e |
children | fd2cf9e0c64e |
line wrap: on
line source
# 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 .pycompat import getattr 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 = { b'none': (True, b'sgr0', b''), b'standout': (True, b'smso', b''), b'underline': (True, b'smul', b''), b'reverse': (True, b'rev', b''), b'inverse': (True, b'rev', b''), b'blink': (True, b'blink', b''), b'dim': (True, b'dim', b''), b'bold': (True, b'bold', b''), b'invisible': (True, b'invis', b''), b'italic': (True, b'sitm', b''), b'black': (False, curses.COLOR_BLACK, b''), b'red': (False, curses.COLOR_RED, b''), b'green': (False, curses.COLOR_GREEN, b''), b'yellow': (False, curses.COLOR_YELLOW, b''), b'blue': (False, curses.COLOR_BLUE, b''), b'magenta': (False, curses.COLOR_MAGENTA, b''), b'cyan': (False, curses.COLOR_CYAN, b''), b'white': (False, curses.COLOR_WHITE, b''), } except (ImportError, AttributeError): curses = None _baseterminfoparams = {} # start and stop parameters for effects _effects = { b'none': 0, b'black': 30, b'red': 31, b'green': 32, b'yellow': 33, b'blue': 34, b'magenta': 35, b'cyan': 36, b'white': 37, b'bold': 1, b'italic': 3, b'underline': 4, b'inverse': 7, b'dim': 2, b'black_background': 40, b'red_background': 41, b'green_background': 42, b'yellow_background': 43, b'blue_background': 44, b'purple_background': 45, b'cyan_background': 46, b'white_background': 47, } _defaultstyles = { b'grep.match': b'red bold', b'grep.linenumber': b'green', b'grep.rev': b'blue', b'grep.sep': b'cyan', b'grep.filename': b'magenta', b'grep.user': b'magenta', b'grep.date': b'magenta', b'grep.inserted': b'green bold', b'grep.deleted': b'red bold', b'bookmarks.active': b'green', b'branches.active': b'none', b'branches.closed': b'black bold', b'branches.current': b'green', b'branches.inactive': b'none', b'diff.changed': b'white', b'diff.deleted': b'red', b'diff.deleted.changed': b'red bold underline', b'diff.deleted.unchanged': b'red', b'diff.diffline': b'bold', b'diff.extended': b'cyan bold', b'diff.file_a': b'red bold', b'diff.file_b': b'green bold', b'diff.hunk': b'magenta', b'diff.inserted': b'green', b'diff.inserted.changed': b'green bold underline', b'diff.inserted.unchanged': b'green', b'diff.tab': b'', b'diff.trailingwhitespace': b'bold red_background', b'changeset.public': b'', b'changeset.draft': b'', b'changeset.secret': b'', b'diffstat.deleted': b'red', b'diffstat.inserted': b'green', b'formatvariant.name.mismatchconfig': b'red', b'formatvariant.name.mismatchdefault': b'yellow', b'formatvariant.name.uptodate': b'green', b'formatvariant.repo.mismatchconfig': b'red', b'formatvariant.repo.mismatchdefault': b'yellow', b'formatvariant.repo.uptodate': b'green', b'formatvariant.config.special': b'yellow', b'formatvariant.config.default': b'green', b'formatvariant.default': b'', b'histedit.remaining': b'red bold', b'ui.addremove.added': b'green', b'ui.addremove.removed': b'red', b'ui.error': b'red', b'ui.prompt': b'yellow', b'log.changeset': b'yellow', b'patchbomb.finalsummary': b'', b'patchbomb.from': b'magenta', b'patchbomb.to': b'cyan', b'patchbomb.subject': b'green', b'patchbomb.diffstats': b'', b'rebase.rebased': b'blue', b'rebase.remaining': b'red bold', b'resolve.resolved': b'green bold', b'resolve.unresolved': b'red bold', b'shelve.age': b'cyan', b'shelve.newest': b'green bold', b'shelve.name': b'blue bold', b'status.added': b'green bold', b'status.clean': b'none', b'status.copied': b'none', b'status.deleted': b'cyan bold underline', b'status.ignored': b'black bold', b'status.modified': b'blue bold', b'status.removed': b'red bold', b'status.unknown': b'magenta bold underline', b'tags.normal': b'green', b'tags.local': b'black bold', b'upgrade-repo.requirement.preserved': b'cyan', b'upgrade-repo.requirement.added': b'green', b'upgrade-repo.requirement.removed': b'red', } 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 (b'auto', b'terminfo'): return ui._terminfoparams.update(_baseterminfoparams) for key, val in ui.configitems(b'color'): if key.startswith(b'color.'): newval = (False, int(val), b'') ui._terminfoparams[key[6:]] = newval elif key.startswith(b'terminfo.'): newval = (True, b'', val.replace(b'\\E', b'\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(b"no terminfo entry for %s\n" % e) del ui._terminfoparams[key] if not curses.tigetstr('setaf') or not curses.tigetstr('setab'): # Only warn about missing terminfo entries if we explicitly asked for # terminfo mode and we're in a formatted terminal. if mode == b"terminfo" and formatted: ui.warn( _( b"no terminfo entry for setab/setaf: reverting to " b"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 != b'debug': configstyles(ui) def _modesetup(ui): if ui.plain(b'color'): return None config = ui.config(b'ui', b'color') if config == b'debug': return b'debug' auto = config == b'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(b'ui', b'color') == b'--color' or config == b'always' ): always = True else: auto = True if not always and not auto: return None formatted = always or ( encoding.environ.get(b'TERM') != b'dumb' and ui.formatted() ) mode = ui.config(b'color', b'mode') # If pager is active, color.pagermode overrides color.mode. if getattr(ui, 'pageractive', False): mode = ui.config(b'color', b'pagermode', mode) realmode = mode if pycompat.iswindows: from . import win32 term = encoding.environ.get(b'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 b'xterm' in term if mode == b'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 = b'ansi' else: realmode = b'win32' # An empty w32effects is a clue that stdout is redirected, and thus # cannot enable VT mode. elif mode == b'ansi' and w32effects and not ansienviron: win32.enablevtmode() elif mode == b'auto': realmode = b'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(_(b'warning: failed to set color mode to %s\n') % mode) if realmode == b'win32': ui._terminfoparams.clear() if not w32effects: modewarn() return None elif realmode == b'ansi': ui._terminfoparams.clear() elif realmode == b'terminfo': _terminfosetup(ui, mode, formatted) if not ui._terminfoparams: ## FIXME Shouldn't we return None in this case too? modewarn() realmode = b'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(b'color'): if b'.' not in status or status.startswith((b'color.', b'terminfo.')): continue cfgeffects = ui.configlist(b'color', status) if cfgeffects: good = [] for e in cfgeffects: if valideffect(ui, e): good.append(e) else: ui.warn( _( b"ignoring unknown color/effect %s " b"(configured in color.%s)\n" ) % (stringutil.pprint(e), status) ) ui._styles[status] = b' '.join(good) def _activeeffects(ui): '''Return the effects map for the color mode set on the ui.''' if ui._colormode == b'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(b'_background'): bg = True effect = effect[:-11] try: attr, val, termcode = ui._terminfoparams[effect] except KeyError: return b'' if attr: if termcode: return termcode else: return curses.tigetstr(pycompat.sysstr(val)) elif bg: return curses.tparm(curses.tigetstr('setab'), val) else: return curses.tparm(curses.tigetstr('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 b''.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 = b''.join( _effect_str(ui, effect) for effect in [b'none'] + effects.split() ) stop = _effect_str(ui, b'none') else: activeeffects = _activeeffects(ui) start = [ pycompat.bytestr(activeeffects[e]) for e in [b'none'] + effects.split() ] start = b'\033[' + b';'.join(start) + b'm' stop = b'\033[' + pycompat.bytestr(activeeffects[b'none']) + b'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(b'', text) def colorlabel(ui, msg, label): """add color control code according to the mode""" if ui._colormode == b'debug': if label and msg: if msg.endswith(b'\n'): msg = b"[%s|%s]\n" % (label, msg[:-1]) else: msg = b"[%s|%s]" % (label, msg) elif ui._colormode is not None: effects = [] for l in label.split(): s = ui._styles.get(l, b'') if s: effects.append(s) elif valideffect(ui, l): effects.append(l) effects = b' '.join(effects) if effects: msg = b'\n'.join( [ _render_effects(ui, line, effects) for line in msg.split(b'\n') ] ) return msg w32effects = None if pycompat.iswindows: import ctypes _kernel32 = ctypes.windll.kernel32 # pytype: disable=module-attr _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 = { b'none': -1, b'black': 0, b'red': _FOREGROUND_RED, b'green': _FOREGROUND_GREEN, b'yellow': _FOREGROUND_RED | _FOREGROUND_GREEN, b'blue': _FOREGROUND_BLUE, b'magenta': _FOREGROUND_BLUE | _FOREGROUND_RED, b'cyan': _FOREGROUND_BLUE | _FOREGROUND_GREEN, b'white': _FOREGROUND_RED | _FOREGROUND_GREEN | _FOREGROUND_BLUE, b'bold': _FOREGROUND_INTENSITY, b'black_background': 0x100, # unused value > 0x0f b'red_background': _BACKGROUND_RED, b'green_background': _BACKGROUND_GREEN, b'yellow_background': _BACKGROUND_RED | _BACKGROUND_GREEN, b'blue_background': _BACKGROUND_BLUE, b'purple_background': _BACKGROUND_BLUE | _BACKGROUND_RED, b'cyan_background': _BACKGROUND_BLUE | _BACKGROUND_GREEN, b'white_background': ( _BACKGROUND_RED | _BACKGROUND_GREEN | _BACKGROUND_BLUE ), b'bold_background': _BACKGROUND_INTENSITY, b'underline': _COMMON_LVB_UNDERSCORE, # double-byte charsets only b'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('label', b'') 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, b'') 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)