Mercurial > hg
annotate mercurial/diffutil.py @ 38665:6afa928033bd
revlog: make isdescendantrev(a, b) check if a < b
This check was taken from rebase.py. It seems to make sense to move it
here, but I haven't done any measurements.
Differential Revision: https://phab.mercurial-scm.org/D3930
author | Martin von Zweigbergk <martinvonz@google.com> |
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date | Wed, 11 Jul 2018 16:37:30 -0700 |
parents | be441eb65f09 |
children | 78b270a55dc6 |
rev | line source |
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1 # diffutil.py - utility functions related to diff and patch |
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2 # |
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merge git patch code.
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3 # Copyright 2006 Brendan Cully <brendan@kublai.com> |
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4 # Copyright 2007 Chris Mason <chris.mason@oracle.com> |
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5 # Copyright 2018 Octobus <octobus@octobus.net> |
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6 # |
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7 # This software may be used and distributed according to the terms of the |
10263 | 8 # GNU General Public License version 2 or any later version. |
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9 |
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10 from __future__ import absolute_import |
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11 |
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12 from .i18n import _ |
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13 |
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14 from . import ( |
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15 mdiff, |
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16 pycompat, |
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17 ) |
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18 |
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19 def diffallopts(ui, opts=None, untrusted=False, section='diff'): |
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20 '''return diffopts with all features supported and parsed''' |
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21 return difffeatureopts(ui, opts=opts, untrusted=untrusted, section=section, |
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22 git=True, whitespace=True, formatchanging=True) |
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23 |
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24 def difffeatureopts(ui, opts=None, untrusted=False, section='diff', git=False, |
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25 whitespace=False, formatchanging=False): |
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26 '''return diffopts with only opted-in features parsed |
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27 |
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28 Features: |
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29 - git: git-style diffs |
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30 - whitespace: whitespace options like ignoreblanklines and ignorews |
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31 - formatchanging: options that will likely break or cause correctness issues |
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32 with most diff parsers |
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33 ''' |
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34 def get(key, name=None, getter=ui.configbool, forceplain=None): |
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35 if opts: |
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36 v = opts.get(key) |
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37 # diffopts flags are either None-default (which is passed |
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38 # through unchanged, so we can identify unset values), or |
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39 # some other falsey default (eg --unified, which defaults |
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40 # to an empty string). We only want to override the config |
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41 # entries from hgrc with command line values if they |
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42 # appear to have been set, which is any truthy value, |
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43 # True, or False. |
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44 if v or isinstance(v, bool): |
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45 return v |
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46 if forceplain is not None and ui.plain(): |
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47 return forceplain |
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48 return getter(section, name or key, untrusted=untrusted) |
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49 |
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50 # core options, expected to be understood by every diff parser |
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51 buildopts = { |
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52 'nodates': get('nodates'), |
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53 'showfunc': get('show_function', 'showfunc'), |
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54 'context': get('unified', getter=ui.config), |
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55 } |
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56 buildopts['xdiff'] = ui.configbool('experimental', 'xdiff') |
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57 |
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58 if git: |
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59 buildopts['git'] = get('git') |
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60 |
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61 # since this is in the experimental section, we need to call |
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62 # ui.configbool directory |
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63 buildopts['showsimilarity'] = ui.configbool('experimental', |
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64 'extendedheader.similarity') |
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65 |
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66 # need to inspect the ui object instead of using get() since we want to |
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67 # test for an int |
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68 hconf = ui.config('experimental', 'extendedheader.index') |
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69 if hconf is not None: |
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70 hlen = None |
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71 try: |
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72 # the hash config could be an integer (for length of hash) or a |
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73 # word (e.g. short, full, none) |
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74 hlen = int(hconf) |
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75 if hlen < 0 or hlen > 40: |
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76 msg = _("invalid length for extendedheader.index: '%d'\n") |
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77 ui.warn(msg % hlen) |
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78 except ValueError: |
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79 # default value |
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80 if hconf == 'short' or hconf == '': |
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81 hlen = 12 |
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82 elif hconf == 'full': |
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83 hlen = 40 |
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84 elif hconf != 'none': |
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85 msg = _("invalid value for extendedheader.index: '%s'\n") |
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86 ui.warn(msg % hconf) |
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87 finally: |
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88 buildopts['index'] = hlen |
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89 |
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90 if whitespace: |
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91 buildopts['ignorews'] = get('ignore_all_space', 'ignorews') |
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92 buildopts['ignorewsamount'] = get('ignore_space_change', |
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93 'ignorewsamount') |
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94 buildopts['ignoreblanklines'] = get('ignore_blank_lines', |
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95 'ignoreblanklines') |
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96 buildopts['ignorewseol'] = get('ignore_space_at_eol', 'ignorewseol') |
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97 if formatchanging: |
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98 buildopts['text'] = opts and opts.get('text') |
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99 binary = None if opts is None else opts.get('binary') |
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100 buildopts['nobinary'] = (not binary if binary is not None |
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101 else get('nobinary', forceplain=False)) |
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102 buildopts['noprefix'] = get('noprefix', forceplain=False) |
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103 buildopts['worddiff'] = get('word_diff', 'word-diff', forceplain=False) |
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104 |
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105 return mdiff.diffopts(**pycompat.strkwargs(buildopts)) |