Mercurial > hg
view mercurial/diffutil.py @ 43870:66af68d4c751
pycompat: allow pycompat.sysbytes() even if input already is bytes
pycompat.sysstr() on py3 accepts an input that's already str
(i.e. unicode). This patch makes it so pycompat.sysbytes() on py3
accepts an input that's already bytes. Allowing that makes it possible
to do pycompat.sysbytes(fp.name) where fp.name is either bytes or
unicode, as we'll get when fp can come from either open() or
resources.open_binary().
Differential Revision: https://phab.mercurial-scm.org/D7621
author | Martin von Zweigbergk <martinvonz@google.com> |
---|---|
date | Thu, 12 Dec 2019 10:26:09 -0800 |
parents | 687b865b95ad |
children | 89a2afe31e82 |
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# diffutil.py - utility functions related to diff and patch # # Copyright 2006 Brendan Cully <brendan@kublai.com> # Copyright 2007 Chris Mason <chris.mason@oracle.com> # Copyright 2018 Octobus <octobus@octobus.net> # # 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 from .i18n import _ from . import ( mdiff, pycompat, ) def diffallopts( ui, opts=None, untrusted=False, section=b'diff', configprefix=b'' ): '''return diffopts with all features supported and parsed''' return difffeatureopts( ui, opts=opts, untrusted=untrusted, section=section, git=True, whitespace=True, formatchanging=True, configprefix=configprefix, ) def difffeatureopts( ui, opts=None, untrusted=False, section=b'diff', git=False, whitespace=False, formatchanging=False, configprefix=b'', ): '''return diffopts with only opted-in features parsed Features: - git: git-style diffs - whitespace: whitespace options like ignoreblanklines and ignorews - formatchanging: options that will likely break or cause correctness issues with most diff parsers ''' def get(key, name=None, getter=ui.configbool, forceplain=None): if opts: v = opts.get(key) # diffopts flags are either None-default (which is passed # through unchanged, so we can identify unset values), or # some other falsey default (eg --unified, which defaults # to an empty string). We only want to override the config # entries from hgrc with command line values if they # appear to have been set, which is any truthy value, # True, or False. if v or isinstance(v, bool): return v if forceplain is not None and ui.plain(): return forceplain return getter( section, configprefix + (name or key), untrusted=untrusted ) # core options, expected to be understood by every diff parser buildopts = { b'nodates': get(b'nodates'), b'showfunc': get(b'show_function', b'showfunc'), b'context': get(b'unified', getter=ui.config), } buildopts[b'xdiff'] = ui.configbool(b'experimental', b'xdiff') if git: buildopts[b'git'] = get(b'git') # since this is in the experimental section, we need to call # ui.configbool directory buildopts[b'showsimilarity'] = ui.configbool( b'experimental', b'extendedheader.similarity' ) # need to inspect the ui object instead of using get() since we want to # test for an int hconf = ui.config(b'experimental', b'extendedheader.index') if hconf is not None: hlen = None try: # the hash config could be an integer (for length of hash) or a # word (e.g. short, full, none) hlen = int(hconf) if hlen < 0 or hlen > 40: msg = _(b"invalid length for extendedheader.index: '%d'\n") ui.warn(msg % hlen) except ValueError: # default value if hconf == b'short' or hconf == b'': hlen = 12 elif hconf == b'full': hlen = 40 elif hconf != b'none': msg = _(b"invalid value for extendedheader.index: '%s'\n") ui.warn(msg % hconf) finally: buildopts[b'index'] = hlen if whitespace: buildopts[b'ignorews'] = get(b'ignore_all_space', b'ignorews') buildopts[b'ignorewsamount'] = get( b'ignore_space_change', b'ignorewsamount' ) buildopts[b'ignoreblanklines'] = get( b'ignore_blank_lines', b'ignoreblanklines' ) buildopts[b'ignorewseol'] = get(b'ignore_space_at_eol', b'ignorewseol') if formatchanging: buildopts[b'text'] = opts and opts.get(b'text') binary = None if opts is None else opts.get(b'binary') buildopts[b'nobinary'] = ( not binary if binary is not None else get(b'nobinary', forceplain=False) ) buildopts[b'noprefix'] = get(b'noprefix', forceplain=False) buildopts[b'worddiff'] = get( b'word_diff', b'word-diff', forceplain=False ) return mdiff.diffopts(**pycompat.strkwargs(buildopts))