Mercurial > hg
view mercurial/color.py @ 42707:3cffc7bbec26
copies: extract an explicit `computechangesetcopie` method from context
Right now, the logic around changeset centric copies data are buried into the
"changectx" code. We extract this code in a dedicated method (in the copies
module) for clarity. This clarity will help to explicitly compute and caches
these data in the future.
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
---|---|
date | Tue, 06 Aug 2019 03:17:40 +0200 |
parents | a91615b71679 |
children | 2372284d9457 |
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# 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': 'blue', 'grep.sep': 'cyan', 'grep.filename': 'magenta', 'grep.user': 'magenta', 'grep.date': 'magenta', 'grep.inserted': 'green bold', 'grep.deleted': 'red bold', '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)