Mercurial > hg
annotate mercurial/match.py @ 16719:e7bf09acd410
localrepo: add branchtip() method for faster single-branch lookups
For the PyPy repo with 744 branches and 843 branch heads, this brings
hg log -r default over NFS from:
CallCount Recursive Total(ms) Inline(ms) module:lineno(function)
3249 0 1.3222 1.3222 <open>
3244 0 0.6211 0.6211 <method 'close' of 'file' objects>
3243 0 0.0800 0.0800 <method 'read' of 'file' objects>
3241 0 0.0660 0.0660 <method 'seek' of 'file' objects>
3905 0 0.0476 0.0476 <zlib.decompress>
3281 0 2.6756 0.0472 mercurial.changelog:182(read)
+3281 0 2.5256 0.0453 +mercurial.revlog:881(revision)
+3276 0 0.0389 0.0196 +mercurial.changelog:28(decodeextra)
+6562 0 0.0123 0.0123 +<method 'split' of 'str' objects>
+6562 0 0.0408 0.0073 +mercurial.encoding:61(tolocal)
+3281 0 0.0054 0.0054 +<method 'index' of 'str' objects>
3241 0 2.2464 0.0456 mercurial.revlog:818(_loadchunk)
+3241 0 0.6205 0.6205 +<method 'close' of 'file' objects>
+3241 0 0.0765 0.0765 +<method 'read' of 'file' objects>
+3241 0 0.0660 0.0660 +<method 'seek' of 'file' objects>
+3241 0 1.4209 0.0135 +mercurial.store:374(__call__)
+3241 0 0.0122 0.0107 +mercurial.revlog:810(_addchunk)
3281 0 2.5256 0.0453 mercurial.revlog:881(revision)
+3280 0 0.0175 0.0175 +mercurial.revlog:305(rev)
+3281 0 2.2819 0.0119 +mercurial.revlog:847(_chunkraw)
+3281 0 0.0603 0.0083 +mercurial.revlog:945(_checkhash)
+3281 0 0.0051 0.0051 +mercurial.revlog:349(flags)
+3281 0 0.0040 0.0040 +<mercurial.mpatch.patches>
13682 0 0.0479 0.0248 <method 'decode' of 'str' objects>
+7418 0 0.0228 0.0076 +encodings.utf_8:15(decode)
+1 0 0.0003 0.0000 +encodings:71(search_function)
3248 0 1.3995 0.0246 mercurial.scmutil:218(__call__)
+3248 0 1.3222 1.3222 +<open>
+3248 0 0.0235 0.0184 +os.path:80(split)
+3248 0 0.0084 0.0068 +mercurial.scmutil:92(__call__)
Time: real 2.750 secs (user 0.680+0.000 sys 0.360+0.000)
down to:
CallCount Recursive Total(ms) Inline(ms) module:lineno(function)
55 31 0.0197 0.0163 <__import__>
+1 0 0.0006 0.0002 +mercurial.context:8(<module>)
+1 0 0.0042 0.0001 +mercurial.revlog:12(<module>)
+1 0 0.0002 0.0001 +mercurial.match:8(<module>)
+1 0 0.0003 0.0001 +mercurial.dirstate:7(<module>)
+1 0 0.0057 0.0001 +mercurial.changelog:8(<module>)
1 0 0.0117 0.0032 mercurial.localrepo:525(_readbranchcache)
+844 0 0.0015 0.0015 +<binascii.unhexlify>
+845 0 0.0010 0.0010 +<method 'split' of 'str' objects>
+843 0 0.0045 0.0009 +mercurial.encoding:61(tolocal)
+843 0 0.0004 0.0004 +<method 'setdefault' of 'dict' objects>
+1 0 0.0003 0.0003 +<method 'close' of 'file' objects>
3 0 0.0029 0.0029 <method 'read' of 'file' objects>
9 0 0.0018 0.0018 <open>
990 0 0.0017 0.0017 <binascii.unhexlify>
53 0 0.0016 0.0016 mercurial.demandimport:43(__init__)
862 0 0.0015 0.0015 <_codecs.utf_8_decode>
862 0 0.0037 0.0014 <method 'decode' of 'str' objects>
+862 0 0.0023 0.0008 +encodings.utf_8:15(decode)
981 0 0.0011 0.0011 <method 'split' of 'str' objects>
861 0 0.0046 0.0009 mercurial.encoding:61(tolocal)
+861 0 0.0037 0.0014 +<method 'decode' of 'str' objects>
862 0 0.0023 0.0008 encodings.utf_8:15(decode)
+862 0 0.0015 0.0015 +<_codecs.utf_8_decode>
4 0 0.0008 0.0008 <method 'close' of 'file' objects>
179 154 0.0202 0.0004 mercurial.demandimport:83(__getattribute__)
+36 11 0.0199 0.0003 +mercurial.demandimport:55(_load)
+72 0 0.0001 0.0001 +mercurial.demandimport:83(__getattribute__)
+36 0 0.0000 0.0000 +<getattr>
1 0 0.0015 0.0004 mercurial.tags:148(_readtagcache)
Time: real 0.060 secs (user 0.030+0.000 sys 0.010+0.000)
author | Brodie Rao <brodie@sf.io> |
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date | Sun, 13 May 2012 14:04:04 +0200 |
parents | e34106fa0dc3 |
children | 977c80123835 |
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1 # match.py - filename matching |
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2 # |
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3 # Copyright 2008, 2009 Matt Mackall <mpm@selenic.com> and others |
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4 # |
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5 # This software may be used and distributed according to the terms of the |
10263 | 6 # GNU General Public License version 2 or any later version. |
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7 |
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8 import re |
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9 import scmutil, util, fileset |
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10 from i18n import _ |
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12 def _expandsets(pats, ctx): |
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13 '''convert set: patterns into a list of files in the given context''' |
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14 fset = set() |
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15 other = [] |
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16 |
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17 for kind, expr in pats: |
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18 if kind == 'set': |
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19 if not ctx: |
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20 raise util.Abort("fileset expression with no context") |
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21 s = fileset.getfileset(ctx, expr) |
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22 fset.update(s) |
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23 continue |
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24 other.append((kind, expr)) |
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25 return fset, other |
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26 |
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27 class match(object): |
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28 def __init__(self, root, cwd, patterns, include=[], exclude=[], |
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29 default='glob', exact=False, auditor=None, ctx=None): |
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30 """build an object to match a set of file patterns |
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31 |
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32 arguments: |
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33 root - the canonical root of the tree you're matching against |
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34 cwd - the current working directory, if relevant |
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35 patterns - patterns to find |
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36 include - patterns to include |
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37 exclude - patterns to exclude |
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38 default - if a pattern in names has no explicit type, assume this one |
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39 exact - patterns are actually literals |
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40 |
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41 a pattern is one of: |
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42 'glob:<glob>' - a glob relative to cwd |
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43 're:<regexp>' - a regular expression |
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44 'path:<path>' - a path relative to canonroot |
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45 'relglob:<glob>' - an unrooted glob (*.c matches C files in all dirs) |
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46 'relpath:<path>' - a path relative to cwd |
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47 'relre:<regexp>' - a regexp that needn't match the start of a name |
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48 'set:<fileset>' - a fileset expression |
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49 '<something>' - a pattern of the specified default type |
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50 """ |
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51 |
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52 self._root = root |
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53 self._cwd = cwd |
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54 self._files = [] |
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55 self._anypats = bool(include or exclude) |
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56 self._ctx = ctx |
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57 |
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58 if include: |
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59 pats = _normalize(include, 'glob', root, cwd, auditor) |
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60 self.includepat, im = _buildmatch(ctx, pats, '(?:/|$)') |
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61 if exclude: |
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62 pats = _normalize(exclude, 'glob', root, cwd, auditor) |
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63 self.excludepat, em = _buildmatch(ctx, pats, '(?:/|$)') |
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64 if exact: |
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65 self._files = patterns |
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66 pm = self.exact |
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67 elif patterns: |
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68 pats = _normalize(patterns, default, root, cwd, auditor) |
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69 self._files = _roots(pats) |
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70 self._anypats = self._anypats or _anypats(pats) |
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71 self.patternspat, pm = _buildmatch(ctx, pats, '$') |
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72 |
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73 if patterns or exact: |
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74 if include: |
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75 if exclude: |
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76 m = lambda f: im(f) and not em(f) and pm(f) |
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77 else: |
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78 m = lambda f: im(f) and pm(f) |
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79 else: |
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80 if exclude: |
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81 m = lambda f: not em(f) and pm(f) |
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82 else: |
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83 m = pm |
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84 else: |
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85 if include: |
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86 if exclude: |
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87 m = lambda f: im(f) and not em(f) |
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88 else: |
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89 m = im |
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90 else: |
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91 if exclude: |
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92 m = lambda f: not em(f) |
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93 else: |
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94 m = lambda f: True |
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95 |
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96 self.matchfn = m |
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97 self._fmap = set(self._files) |
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98 |
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99 def __call__(self, fn): |
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100 return self.matchfn(fn) |
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101 def __iter__(self): |
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102 for f in self._files: |
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103 yield f |
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104 def bad(self, f, msg): |
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105 '''callback for each explicit file that can't be |
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106 found/accessed, with an error message |
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107 ''' |
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108 pass |
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109 def dir(self, f): |
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110 pass |
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111 def missing(self, f): |
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112 pass |
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113 def exact(self, f): |
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114 return f in self._fmap |
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115 def rel(self, f): |
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116 return util.pathto(self._root, self._cwd, f) |
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117 def files(self): |
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118 return self._files |
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119 def anypats(self): |
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120 return self._anypats |
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121 def always(self): |
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122 return False |
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124 class exact(match): |
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125 def __init__(self, root, cwd, files): |
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126 match.__init__(self, root, cwd, files, exact = True) |
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127 |
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128 class always(match): |
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129 def __init__(self, root, cwd): |
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130 match.__init__(self, root, cwd, []) |
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131 def always(self): |
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132 return True |
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133 |
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134 class narrowmatcher(match): |
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135 """Adapt a matcher to work on a subdirectory only. |
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136 |
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137 The paths are remapped to remove/insert the path as needed: |
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138 |
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139 >>> m1 = match('root', '', ['a.txt', 'sub/b.txt']) |
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140 >>> m2 = narrowmatcher('sub', m1) |
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141 >>> bool(m2('a.txt')) |
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142 False |
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143 >>> bool(m2('b.txt')) |
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144 True |
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145 >>> bool(m2.matchfn('a.txt')) |
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146 False |
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147 >>> bool(m2.matchfn('b.txt')) |
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148 True |
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149 >>> m2.files() |
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150 ['b.txt'] |
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151 >>> m2.exact('b.txt') |
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152 True |
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153 >>> m2.rel('b.txt') |
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154 'b.txt' |
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155 >>> def bad(f, msg): |
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156 ... print "%s: %s" % (f, msg) |
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157 >>> m1.bad = bad |
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158 >>> m2.bad('x.txt', 'No such file') |
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159 sub/x.txt: No such file |
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160 """ |
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161 |
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|
162 def __init__(self, path, matcher): |
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163 self._root = matcher._root |
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164 self._cwd = matcher._cwd |
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165 self._path = path |
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166 self._matcher = matcher |
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167 |
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168 self._files = [f[len(path) + 1:] for f in matcher._files |
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169 if f.startswith(path + "/")] |
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170 self._anypats = matcher._anypats |
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171 self.matchfn = lambda fn: matcher.matchfn(self._path + "/" + fn) |
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172 self._fmap = set(self._files) |
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173 |
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174 def bad(self, f, msg): |
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175 self._matcher.bad(self._path + "/" + f, msg) |
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|
176 |
8568 | 177 def patkind(pat): |
8570
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178 return _patsplit(pat, None)[0] |
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179 |
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|
180 def _patsplit(pat, default): |
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|
181 """Split a string into an optional pattern kind prefix and the |
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|
182 actual pattern.""" |
8579 | 183 if ':' in pat: |
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|
184 kind, val = pat.split(':', 1) |
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match: support reading pattern lists from files
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|
185 if kind in ('re', 'glob', 'path', 'relglob', 'relpath', 'relre', |
14675
cfc89398f710
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|
186 'listfile', 'listfile0', 'set'): |
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187 return kind, val |
8570
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|
188 return default, pat |
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|
189 |
8582
a4c199e12b5a
match: remove head and tail args from _globre
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8581
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|
190 def _globre(pat): |
8570
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191 "convert a glob pattern into a regexp" |
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192 i, n = 0, len(pat) |
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193 res = '' |
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|
194 group = 0 |
8583
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|
195 escape = re.escape |
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|
196 def peek(): |
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197 return i < n and pat[i] |
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198 while i < n: |
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199 c = pat[i] |
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200 i += 1 |
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201 if c not in '*?[{},\\': |
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|
202 res += escape(c) |
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203 elif c == '*': |
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204 if peek() == '*': |
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205 i += 1 |
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206 res += '.*' |
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207 else: |
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208 res += '[^/]*' |
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209 elif c == '?': |
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210 res += '.' |
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211 elif c == '[': |
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212 j = i |
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213 if j < n and pat[j] in '!]': |
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214 j += 1 |
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215 while j < n and pat[j] != ']': |
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216 j += 1 |
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217 if j >= n: |
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218 res += '\\[' |
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219 else: |
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220 stuff = pat[i:j].replace('\\','\\\\') |
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221 i = j + 1 |
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222 if stuff[0] == '!': |
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223 stuff = '^' + stuff[1:] |
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224 elif stuff[0] == '^': |
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225 stuff = '\\' + stuff |
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226 res = '%s[%s]' % (res, stuff) |
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227 elif c == '{': |
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228 group += 1 |
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229 res += '(?:' |
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230 elif c == '}' and group: |
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231 res += ')' |
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232 group -= 1 |
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233 elif c == ',' and group: |
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234 res += '|' |
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235 elif c == '\\': |
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236 p = peek() |
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237 if p: |
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238 i += 1 |
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239 res += escape(p) |
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240 else: |
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241 res += escape(c) |
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242 else: |
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243 res += escape(c) |
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244 return res |
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245 |
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246 def _regex(kind, name, tail): |
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247 '''convert a pattern into a regular expression''' |
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248 if not name: |
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249 return '' |
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250 if kind == 're': |
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251 return name |
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252 elif kind == 'path': |
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253 return '^' + re.escape(name) + '(?:/|$)' |
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254 elif kind == 'relglob': |
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255 return '(?:|.*/)' + _globre(name) + tail |
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256 elif kind == 'relpath': |
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257 return re.escape(name) + '(?:/|$)' |
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258 elif kind == 'relre': |
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259 if name.startswith('^'): |
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260 return name |
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261 return '.*' + name |
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262 return _globre(name) + tail |
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263 |
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264 def _buildmatch(ctx, pats, tail): |
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265 fset, pats = _expandsets(pats, ctx) |
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266 if not pats: |
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267 return "", fset.__contains__ |
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268 |
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269 pat, mf = _buildregexmatch(pats, tail) |
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270 if fset: |
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271 return pat, lambda f: f in fset or mf(f) |
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272 return pat, mf |
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273 |
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274 def _buildregexmatch(pats, tail): |
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275 """build a matching function from a set of patterns""" |
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276 try: |
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277 pat = '(?:%s)' % '|'.join([_regex(k, p, tail) for (k, p) in pats]) |
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278 if len(pat) > 20000: |
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279 raise OverflowError |
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280 return pat, re.compile(pat).match |
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281 except OverflowError: |
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282 # We're using a Python with a tiny regex engine and we |
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283 # made it explode, so we'll divide the pattern list in two |
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284 # until it works |
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285 l = len(pats) |
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286 if l < 2: |
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287 raise |
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288 pata, a = _buildregexmatch(pats[:l//2], tail) |
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289 patb, b = _buildregexmatch(pats[l//2:], tail) |
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290 return pat, lambda s: a(s) or b(s) |
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291 except re.error: |
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292 for k, p in pats: |
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293 try: |
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294 re.compile('(?:%s)' % _regex(k, p, tail)) |
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295 except re.error: |
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296 raise util.Abort(_("invalid pattern (%s): %s") % (k, p)) |
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297 raise util.Abort(_("invalid pattern")) |
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298 |
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299 def _normalize(names, default, root, cwd, auditor): |
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300 pats = [] |
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301 for kind, name in [_patsplit(p, default) for p in names]: |
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302 if kind in ('glob', 'relpath'): |
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303 name = scmutil.canonpath(root, cwd, name, auditor) |
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304 elif kind in ('relglob', 'path'): |
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305 name = util.normpath(name) |
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306 elif kind in ('listfile', 'listfile0'): |
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307 try: |
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308 files = util.readfile(name) |
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309 if kind == 'listfile0': |
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310 files = files.split('\0') |
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311 else: |
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312 files = files.splitlines() |
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313 files = [f for f in files if f] |
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314 except EnvironmentError: |
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315 raise util.Abort(_("unable to read file list (%s)") % name) |
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316 pats += _normalize(files, default, root, cwd, auditor) |
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317 continue |
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318 |
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319 pats.append((kind, name)) |
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320 return pats |
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321 |
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322 def _roots(patterns): |
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323 r = [] |
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324 for kind, name in patterns: |
8584
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325 if kind == 'glob': # find the non-glob prefix |
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326 root = [] |
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327 for p in name.split('/'): |
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328 if '[' in p or '{' in p or '*' in p or '?' in p: |
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329 break |
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330 root.append(p) |
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331 r.append('/'.join(root) or '.') |
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332 elif kind in ('relpath', 'path'): |
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333 r.append(name or '.') |
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334 elif kind == 'relglob': |
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335 r.append('.') |
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336 return r |
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337 |
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338 def _anypats(patterns): |
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339 for kind, name in patterns: |
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match: consider filesets as "anypats"
Patrick Mezard <patrick@mezard.eu>
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15029
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changeset
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340 if kind in ('glob', 're', 'relglob', 'relre', 'set'): |
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341 return True |