Mercurial > hg
annotate mercurial/match.py @ 23167:a3c2d9211294 stable
templater: don't overwrite the keyword mapping in runsymbol() (issue4362)
This keyword remapping was introduced in e06e9fd2d99f as part of converting
generator based iterators into list based iterators, mentioning "undesired
behavior in template" when a generator is exhausted, but doesn't say what and
introduces no tests.
The problem with the remapping was that it corrupted the output for keywords
like 'extras', 'file_copies' and 'file_copies_switch' in templates such as:
$ hg log -r 142b5d5ec9cc --template "{file_copies % ' File: {file_copy}\n'}"
File: mercurial/changelog.py (mercurial/hg.py)
File: mercurial/changelog.py (mercurial/hg.py)
File: mercurial/changelog.py (mercurial/hg.py)
File: mercurial/changelog.py (mercurial/hg.py)
File: mercurial/changelog.py (mercurial/hg.py)
File: mercurial/changelog.py (mercurial/hg.py)
File: mercurial/changelog.py (mercurial/hg.py)
File: mercurial/changelog.py (mercurial/hg.py)
What was happening was that in the first call to runtemplate() inside runmap(),
'lm' mapped the keyword (e.g. file_copies) to the appropriate showxxx() method.
On each subsequent call to runtemplate() in that loop however, the keyword was
mapped to a list of the first item's pieces, e.g.:
'file_copy': ['mercurial/changelog.py', ' (', 'mercurial/hg.py', ')']
Therefore, the dict for the second and any subsequent items were not processed
through the corresponding showxxx() method, and the first item's data was
reused.
The 'extras' keyword regressed in de7e6c489412, and 'file_copies' regressed in
0b241d7a8c62 for other reasons. The common thread of things fixed by this seems
to be when a list of dicts are passed to the templatekw._hybrid class.
author | Matt Harbison <matt_harbison@yahoo.com> |
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date | Mon, 03 Nov 2014 12:08:03 -0500 |
parents | bbb2f8b0459e |
children | 88d2d77eb981 |
rev | line source |
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Generally replace "file name" with "filename" in help and comments.
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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 util, pathutil |
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10 from i18n import _ |
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12 def _rematcher(regex): |
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13 '''compile the regexp with the best available regexp engine and return a |
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14 matcher function''' |
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15 m = util.re.compile(regex) |
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16 try: |
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17 # slightly faster, provided by facebook's re2 bindings |
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18 return m.test_match |
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19 except AttributeError: |
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20 return m.match |
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21 |
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22 def _expandsets(kindpats, ctx): |
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23 '''Returns the kindpats list with the 'set' patterns expanded.''' |
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24 fset = set() |
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25 other = [] |
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26 |
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27 for kind, pat in kindpats: |
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28 if kind == 'set': |
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29 if not ctx: |
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30 raise util.Abort("fileset expression with no context") |
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31 s = ctx.getfileset(pat) |
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32 fset.update(s) |
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33 continue |
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34 other.append((kind, pat)) |
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35 return fset, other |
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36 |
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37 class match(object): |
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38 def __init__(self, root, cwd, patterns, include=[], exclude=[], |
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39 default='glob', exact=False, auditor=None, ctx=None): |
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40 """build an object to match a set of file patterns |
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41 |
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42 arguments: |
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43 root - the canonical root of the tree you're matching against |
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44 cwd - the current working directory, if relevant |
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45 patterns - patterns to find |
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46 include - patterns to include (unless they are excluded) |
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47 exclude - patterns to exclude (even if they are included) |
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48 default - if a pattern in patterns has no explicit type, assume this one |
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49 exact - patterns are actually filenames (include/exclude still apply) |
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50 |
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51 a pattern is one of: |
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52 'glob:<glob>' - a glob relative to cwd |
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53 're:<regexp>' - a regular expression |
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54 'path:<path>' - a path relative to repository root |
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55 'relglob:<glob>' - an unrooted glob (*.c matches C files in all dirs) |
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56 'relpath:<path>' - a path relative to cwd |
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57 'relre:<regexp>' - a regexp that needn't match the start of a name |
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58 'set:<fileset>' - a fileset expression |
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59 '<something>' - a pattern of the specified default type |
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60 """ |
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61 |
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62 self._root = root |
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63 self._cwd = cwd |
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64 self._files = [] # exact files and roots of patterns |
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65 self._anypats = bool(include or exclude) |
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66 self._ctx = ctx |
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67 self._always = False |
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68 |
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69 matchfns = [] |
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70 if include: |
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71 kindpats = _normalize(include, 'glob', root, cwd, auditor) |
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72 self.includepat, im = _buildmatch(ctx, kindpats, '(?:/|$)') |
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73 matchfns.append(im) |
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74 if exclude: |
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75 kindpats = _normalize(exclude, 'glob', root, cwd, auditor) |
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76 self.excludepat, em = _buildmatch(ctx, kindpats, '(?:/|$)') |
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77 matchfns.append(lambda f: not em(f)) |
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78 if exact: |
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79 if isinstance(patterns, list): |
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80 self._files = patterns |
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81 else: |
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82 self._files = list(patterns) |
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83 matchfns.append(self.exact) |
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84 elif patterns: |
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85 kindpats = _normalize(patterns, default, root, cwd, auditor) |
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86 self._files = _roots(kindpats) |
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87 self._anypats = self._anypats or _anypats(kindpats) |
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88 self.patternspat, pm = _buildmatch(ctx, kindpats, '$') |
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89 matchfns.append(pm) |
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90 |
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91 if not matchfns: |
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92 m = util.always |
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93 self._always = True |
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94 elif len(matchfns) == 1: |
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95 m = matchfns[0] |
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96 else: |
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97 def m(f): |
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98 for matchfn in matchfns: |
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99 if not matchfn(f): |
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100 return False |
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101 return True |
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102 |
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103 self.matchfn = m |
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104 self._fmap = set(self._files) |
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105 |
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106 def __call__(self, fn): |
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107 return self.matchfn(fn) |
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108 def __iter__(self): |
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109 for f in self._files: |
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110 yield f |
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111 |
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112 # Callbacks related to how the matcher is used by dirstate.walk. |
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113 # Subscribers to these events must monkeypatch the matcher object. |
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114 def bad(self, f, msg): |
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115 '''Callback from dirstate.walk for each explicit file that can't be |
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116 found/accessed, with an error message.''' |
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117 pass |
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118 |
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119 # If an explicitdir is set, it will be called when an explicitly listed |
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120 # directory is visited. |
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121 explicitdir = None |
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122 |
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123 # If an traversedir is set, it will be called when a directory discovered |
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124 # by recursive traversal is visited. |
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125 traversedir = None |
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126 |
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127 def rel(self, f): |
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128 '''Convert repo path back to path that is relative to cwd of matcher.''' |
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129 return util.pathto(self._root, self._cwd, f) |
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130 |
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131 def files(self): |
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132 '''Explicitly listed files or patterns or roots: |
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133 if no patterns or .always(): empty list, |
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134 if exact: list exact files, |
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135 if not .anypats(): list all files and dirs, |
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136 else: optimal roots''' |
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137 return self._files |
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138 |
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139 def exact(self, f): |
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140 '''Returns True if f is in .files().''' |
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141 return f in self._fmap |
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142 |
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143 def anypats(self): |
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144 '''Matcher uses patterns or include/exclude.''' |
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145 return self._anypats |
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146 |
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147 def always(self): |
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148 '''Matcher will match everything and .files() will be empty |
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149 - optimization might be possible and necessary.''' |
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150 return self._always |
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152 class exact(match): |
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153 def __init__(self, root, cwd, files): |
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154 match.__init__(self, root, cwd, files, exact=True) |
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155 |
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156 class always(match): |
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157 def __init__(self, root, cwd): |
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158 match.__init__(self, root, cwd, []) |
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159 |
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160 class narrowmatcher(match): |
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161 """Adapt a matcher to work on a subdirectory only. |
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162 |
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163 The paths are remapped to remove/insert the path as needed: |
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164 |
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165 >>> m1 = match('root', '', ['a.txt', 'sub/b.txt']) |
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166 >>> m2 = narrowmatcher('sub', m1) |
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167 >>> bool(m2('a.txt')) |
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168 False |
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169 >>> bool(m2('b.txt')) |
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170 True |
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171 >>> bool(m2.matchfn('a.txt')) |
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172 False |
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173 >>> bool(m2.matchfn('b.txt')) |
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174 True |
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175 >>> m2.files() |
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176 ['b.txt'] |
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177 >>> m2.exact('b.txt') |
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178 True |
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179 >>> m2.rel('b.txt') |
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180 'b.txt' |
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181 >>> def bad(f, msg): |
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182 ... print "%s: %s" % (f, msg) |
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183 >>> m1.bad = bad |
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184 >>> m2.bad('x.txt', 'No such file') |
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185 sub/x.txt: No such file |
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186 """ |
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187 |
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188 def __init__(self, path, matcher): |
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189 self._root = matcher._root |
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190 self._cwd = matcher._cwd |
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191 self._path = path |
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192 self._matcher = matcher |
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193 self._always = matcher._always |
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194 |
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195 self._files = [f[len(path) + 1:] for f in matcher._files |
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196 if f.startswith(path + "/")] |
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197 self._anypats = matcher._anypats |
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198 self.matchfn = lambda fn: matcher.matchfn(self._path + "/" + fn) |
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199 self._fmap = set(self._files) |
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200 |
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201 def bad(self, f, msg): |
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202 self._matcher.bad(self._path + "/" + f, msg) |
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203 |
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204 def patkind(pattern, default=None): |
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205 '''If pattern is 'kind:pat' with a known kind, return kind.''' |
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206 return _patsplit(pattern, default)[0] |
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207 |
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208 def _patsplit(pattern, default): |
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209 """Split a string into the optional pattern kind prefix and the actual |
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210 pattern.""" |
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211 if ':' in pattern: |
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212 kind, pat = pattern.split(':', 1) |
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213 if kind in ('re', 'glob', 'path', 'relglob', 'relpath', 'relre', |
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214 'listfile', 'listfile0', 'set'): |
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215 return kind, pat |
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216 return default, pattern |
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217 |
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218 def _globre(pat): |
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219 r'''Convert an extended glob string to a regexp string. |
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220 |
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221 >>> print _globre(r'?') |
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222 . |
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223 >>> print _globre(r'*') |
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224 [^/]* |
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225 >>> print _globre(r'**') |
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226 .* |
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227 >>> print _globre(r'**/a') |
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228 (?:.*/)?a |
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229 >>> print _globre(r'a/**/b') |
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230 a\/(?:.*/)?b |
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231 >>> print _globre(r'[a*?!^][^b][!c]') |
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232 [a*?!^][\^b][^c] |
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233 >>> print _globre(r'{a,b}') |
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234 (?:a|b) |
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235 >>> print _globre(r'.\*\?') |
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236 \.\*\? |
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237 ''' |
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238 i, n = 0, len(pat) |
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239 res = '' |
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240 group = 0 |
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241 escape = util.re.escape |
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242 def peek(): |
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243 return i < n and pat[i] |
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244 while i < n: |
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245 c = pat[i] |
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246 i += 1 |
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247 if c not in '*?[{},\\': |
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248 res += escape(c) |
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249 elif c == '*': |
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250 if peek() == '*': |
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251 i += 1 |
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252 if peek() == '/': |
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253 i += 1 |
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254 res += '(?:.*/)?' |
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255 else: |
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256 res += '.*' |
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257 else: |
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258 res += '[^/]*' |
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259 elif c == '?': |
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260 res += '.' |
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261 elif c == '[': |
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262 j = i |
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263 if j < n and pat[j] in '!]': |
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264 j += 1 |
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265 while j < n and pat[j] != ']': |
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266 j += 1 |
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267 if j >= n: |
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268 res += '\\[' |
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269 else: |
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270 stuff = pat[i:j].replace('\\','\\\\') |
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271 i = j + 1 |
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272 if stuff[0] == '!': |
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273 stuff = '^' + stuff[1:] |
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274 elif stuff[0] == '^': |
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275 stuff = '\\' + stuff |
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276 res = '%s[%s]' % (res, stuff) |
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277 elif c == '{': |
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278 group += 1 |
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279 res += '(?:' |
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280 elif c == '}' and group: |
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281 res += ')' |
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282 group -= 1 |
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283 elif c == ',' and group: |
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284 res += '|' |
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285 elif c == '\\': |
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286 p = peek() |
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287 if p: |
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288 i += 1 |
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289 res += escape(p) |
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290 else: |
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291 res += escape(c) |
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292 else: |
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293 res += escape(c) |
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294 return res |
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295 |
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296 def _regex(kind, pat, globsuffix): |
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297 '''Convert a (normalized) pattern of any kind into a regular expression. |
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298 globsuffix is appended to the regexp of globs.''' |
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299 if not pat: |
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300 return '' |
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301 if kind == 're': |
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302 return pat |
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303 if kind == 'path': |
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304 return '^' + util.re.escape(pat) + '(?:/|$)' |
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305 if kind == 'relglob': |
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306 return '(?:|.*/)' + _globre(pat) + globsuffix |
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307 if kind == 'relpath': |
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308 return util.re.escape(pat) + '(?:/|$)' |
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309 if kind == 'relre': |
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310 if pat.startswith('^'): |
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311 return pat |
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312 return '.*' + pat |
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313 return _globre(pat) + globsuffix |
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314 |
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315 def _buildmatch(ctx, kindpats, globsuffix): |
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316 '''Return regexp string and a matcher function for kindpats. |
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317 globsuffix is appended to the regexp of globs.''' |
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318 fset, kindpats = _expandsets(kindpats, ctx) |
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319 if not kindpats: |
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320 return "", fset.__contains__ |
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321 |
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322 regex, mf = _buildregexmatch(kindpats, globsuffix) |
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323 if fset: |
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324 return regex, lambda f: f in fset or mf(f) |
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325 return regex, mf |
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326 |
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327 def _buildregexmatch(kindpats, globsuffix): |
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328 """Build a match function from a list of kinds and kindpats, |
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329 return regexp string and a matcher function.""" |
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330 try: |
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331 regex = '(?:%s)' % '|'.join([_regex(k, p, globsuffix) |
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332 for (k, p) in kindpats]) |
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333 if len(regex) > 20000: |
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334 raise OverflowError |
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335 return regex, _rematcher(regex) |
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336 except OverflowError: |
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337 # We're using a Python with a tiny regex engine and we |
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338 # made it explode, so we'll divide the pattern list in two |
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339 # until it works |
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340 l = len(kindpats) |
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341 if l < 2: |
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342 raise |
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343 regexa, a = _buildregexmatch(kindpats[:l//2], globsuffix) |
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344 regexb, b = _buildregexmatch(kindpats[l//2:], globsuffix) |
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345 return regex, lambda s: a(s) or b(s) |
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346 except re.error: |
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347 for k, p in kindpats: |
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348 try: |
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349 _rematcher('(?:%s)' % _regex(k, p, globsuffix)) |
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350 except re.error: |
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351 raise util.Abort(_("invalid pattern (%s): %s") % (k, p)) |
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352 raise util.Abort(_("invalid pattern")) |
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353 |
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354 def _normalize(patterns, default, root, cwd, auditor): |
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355 '''Convert 'kind:pat' from the patterns list to tuples with kind and |
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356 normalized and rooted patterns and with listfiles expanded.''' |
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357 kindpats = [] |
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358 for kind, pat in [_patsplit(p, default) for p in patterns]: |
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359 if kind in ('glob', 'relpath'): |
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360 pat = pathutil.canonpath(root, cwd, pat, auditor) |
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361 elif kind in ('relglob', 'path'): |
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362 pat = util.normpath(pat) |
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363 elif kind in ('listfile', 'listfile0'): |
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364 try: |
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365 files = util.readfile(pat) |
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366 if kind == 'listfile0': |
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367 files = files.split('\0') |
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368 else: |
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369 files = files.splitlines() |
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370 files = [f for f in files if f] |
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371 except EnvironmentError: |
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372 raise util.Abort(_("unable to read file list (%s)") % pat) |
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373 kindpats += _normalize(files, default, root, cwd, auditor) |
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374 continue |
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375 # else: re or relre - which cannot be normalized |
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376 kindpats.append((kind, pat)) |
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377 return kindpats |
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378 |
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379 def _roots(kindpats): |
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380 '''return roots and exact explicitly listed files from patterns |
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381 |
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382 >>> _roots([('glob', 'g/*'), ('glob', 'g'), ('glob', 'g*')]) |
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383 ['g', 'g', '.'] |
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384 >>> _roots([('relpath', 'r'), ('path', 'p/p'), ('path', '')]) |
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385 ['r', 'p/p', '.'] |
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386 >>> _roots([('relglob', 'rg*'), ('re', 're/'), ('relre', 'rr')]) |
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387 ['.', '.', '.'] |
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388 ''' |
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389 r = [] |
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390 for kind, pat in kindpats: |
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391 if kind == 'glob': # find the non-glob prefix |
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392 root = [] |
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393 for p in pat.split('/'): |
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394 if '[' in p or '{' in p or '*' in p or '?' in p: |
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395 break |
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396 root.append(p) |
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397 r.append('/'.join(root) or '.') |
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398 elif kind in ('relpath', 'path'): |
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399 r.append(pat or '.') |
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400 else: # relglob, re, relre |
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401 r.append('.') |
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402 return r |
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403 |
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404 def _anypats(kindpats): |
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405 for kind, pat in kindpats: |
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406 if kind in ('glob', 're', 'relglob', 'relre', 'set'): |
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407 return True |