Mercurial > hg
annotate mercurial/match.py @ 25245:504ef9c49f4a
util: allow to specify buffer size in popen4
We will need unbuffered IO to restore real time output with ssh peer.
Changeset ec171737aaf1 seems to indicate playing with this value could be
dangerous, but does not indicate why.
author | Pierre-Yves David <pierre-yves.david@fb.com> |
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date | Wed, 20 May 2015 11:29:45 -0500 |
parents | 714f612f2afc |
children | f9a29dc964a3 |
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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 propertycache = util.propertycache |
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13 |
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14 def _rematcher(regex): |
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15 '''compile the regexp with the best available regexp engine and return a |
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16 matcher function''' |
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17 m = util.re.compile(regex) |
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18 try: |
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19 # slightly faster, provided by facebook's re2 bindings |
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20 return m.test_match |
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21 except AttributeError: |
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22 return m.match |
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23 |
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24 def _expandsets(kindpats, ctx, listsubrepos): |
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25 '''Returns the kindpats list with the 'set' patterns expanded.''' |
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26 fset = set() |
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27 other = [] |
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28 |
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29 for kind, pat, source in kindpats: |
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30 if kind == 'set': |
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31 if not ctx: |
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32 raise util.Abort("fileset expression with no context") |
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33 s = ctx.getfileset(pat) |
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34 fset.update(s) |
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35 |
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36 if listsubrepos: |
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37 for subpath in ctx.substate: |
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38 s = ctx.sub(subpath).getfileset(pat) |
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39 fset.update(subpath + '/' + f for f in s) |
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40 |
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41 continue |
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42 other.append((kind, pat, source)) |
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43 return fset, other |
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44 |
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45 def _kindpatsalwaysmatch(kindpats): |
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46 """"Checks whether the kindspats match everything, as e.g. |
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47 'relpath:.' does. |
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48 """ |
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49 for kind, pat, source in kindpats: |
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50 if pat != '' or kind not in ['relpath', 'glob']: |
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51 return False |
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52 return True |
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53 |
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54 class match(object): |
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55 def __init__(self, root, cwd, patterns, include=[], exclude=[], |
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56 default='glob', exact=False, auditor=None, ctx=None, |
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57 listsubrepos=False, warn=None): |
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58 """build an object to match a set of file patterns |
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59 |
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60 arguments: |
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61 root - the canonical root of the tree you're matching against |
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62 cwd - the current working directory, if relevant |
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63 patterns - patterns to find |
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64 include - patterns to include (unless they are excluded) |
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65 exclude - patterns to exclude (even if they are included) |
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66 default - if a pattern in patterns has no explicit type, assume this one |
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67 exact - patterns are actually filenames (include/exclude still apply) |
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68 warn - optional function used for printing warnings |
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69 |
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70 a pattern is one of: |
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71 'glob:<glob>' - a glob relative to cwd |
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72 're:<regexp>' - a regular expression |
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73 'path:<path>' - a path relative to repository root |
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74 'relglob:<glob>' - an unrooted glob (*.c matches C files in all dirs) |
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75 'relpath:<path>' - a path relative to cwd |
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76 'relre:<regexp>' - a regexp that needn't match the start of a name |
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77 'set:<fileset>' - a fileset expression |
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78 'include:<path>' - a file of patterns to read and include |
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79 '<something>' - a pattern of the specified default type |
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80 """ |
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81 |
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82 self._root = root |
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83 self._cwd = cwd |
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84 self._files = [] # exact files and roots of patterns |
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85 self._anypats = bool(include or exclude) |
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86 self._always = False |
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87 self._pathrestricted = bool(include or exclude or patterns) |
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88 self._warn = warn |
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89 self._includeroots = set() |
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90 self._includedirs = set(['.']) |
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91 self._excluderoots = set() |
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92 |
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93 matchfns = [] |
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94 if include: |
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95 kindpats = self._normalize(include, 'glob', root, cwd, auditor) |
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96 self.includepat, im = _buildmatch(ctx, kindpats, '(?:/|$)', |
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97 listsubrepos, root) |
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98 self._includeroots.update(_roots(kindpats)) |
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99 self._includeroots.discard('.') |
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100 self._includedirs.update(util.dirs(self._includeroots)) |
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101 matchfns.append(im) |
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102 if exclude: |
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103 kindpats = self._normalize(exclude, 'glob', root, cwd, auditor) |
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104 self.excludepat, em = _buildmatch(ctx, kindpats, '(?:/|$)', |
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105 listsubrepos, root) |
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106 self._excluderoots.update(_roots(kindpats)) |
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107 self._excluderoots.discard('.') |
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108 matchfns.append(lambda f: not em(f)) |
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109 if exact: |
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110 if isinstance(patterns, list): |
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111 self._files = patterns |
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112 else: |
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113 self._files = list(patterns) |
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114 matchfns.append(self.exact) |
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115 elif patterns: |
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116 kindpats = self._normalize(patterns, default, root, cwd, auditor) |
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117 if not _kindpatsalwaysmatch(kindpats): |
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118 self._files = _roots(kindpats) |
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119 self._anypats = self._anypats or _anypats(kindpats) |
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120 self.patternspat, pm = _buildmatch(ctx, kindpats, '$', |
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121 listsubrepos, root) |
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122 matchfns.append(pm) |
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123 |
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124 if not matchfns: |
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125 m = util.always |
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126 self._always = True |
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127 elif len(matchfns) == 1: |
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128 m = matchfns[0] |
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129 else: |
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130 def m(f): |
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131 for matchfn in matchfns: |
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132 if not matchfn(f): |
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133 return False |
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134 return True |
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135 |
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136 self.matchfn = m |
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137 self._fileroots = set(self._files) |
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138 |
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139 def __call__(self, fn): |
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140 return self.matchfn(fn) |
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141 def __iter__(self): |
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142 for f in self._files: |
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143 yield f |
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144 |
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145 # Callbacks related to how the matcher is used by dirstate.walk. |
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146 # Subscribers to these events must monkeypatch the matcher object. |
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147 def bad(self, f, msg): |
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148 '''Callback from dirstate.walk for each explicit file that can't be |
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149 found/accessed, with an error message.''' |
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150 pass |
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151 |
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152 # If an explicitdir is set, it will be called when an explicitly listed |
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153 # directory is visited. |
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154 explicitdir = None |
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155 |
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156 # If an traversedir is set, it will be called when a directory discovered |
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157 # by recursive traversal is visited. |
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158 traversedir = None |
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159 |
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160 def abs(self, f): |
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161 '''Convert a repo path back to path that is relative to the root of the |
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162 matcher.''' |
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163 return f |
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164 |
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165 def rel(self, f): |
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166 '''Convert repo path back to path that is relative to cwd of matcher.''' |
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167 return util.pathto(self._root, self._cwd, f) |
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168 |
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169 def uipath(self, f): |
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170 '''Convert repo path to a display path. If patterns or -I/-X were used |
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171 to create this matcher, the display path will be relative to cwd. |
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172 Otherwise it is relative to the root of the repo.''' |
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173 return (self._pathrestricted and self.rel(f)) or self.abs(f) |
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174 |
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175 def files(self): |
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176 '''Explicitly listed files or patterns or roots: |
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177 if no patterns or .always(): empty list, |
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178 if exact: list exact files, |
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179 if not .anypats(): list all files and dirs, |
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180 else: optimal roots''' |
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181 return self._files |
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182 |
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183 @propertycache |
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184 def _dirs(self): |
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185 return set(util.dirs(self._fileroots)) | set(['.']) |
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186 |
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187 def visitdir(self, dir): |
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188 '''Decides whether a directory should be visited based on whether it |
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189 has potential matches in it or one of its subdirectories. This is |
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190 based on the match's primary, included, and excluded patterns. |
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191 |
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192 This function's behavior is undefined if it has returned False for |
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193 one of the dir's parent directories. |
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194 ''' |
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195 if dir in self._excluderoots: |
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196 return False |
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197 parentdirs = None |
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198 if (self._includeroots and dir not in self._includeroots and |
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199 dir not in self._includedirs): |
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200 parentdirs = util.finddirs(dir) |
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201 if not any(parent in self._includeroots for parent in parentdirs): |
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202 return False |
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203 return (not self._fileroots or '.' in self._fileroots or |
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204 dir in self._fileroots or dir in self._dirs or |
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205 any(parentdir in self._fileroots |
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206 for parentdir in parentdirs or util.finddirs(dir))) |
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207 |
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208 def exact(self, f): |
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209 '''Returns True if f is in .files().''' |
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210 return f in self._fileroots |
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211 |
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212 def anypats(self): |
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213 '''Matcher uses patterns or include/exclude.''' |
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214 return self._anypats |
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215 |
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216 def always(self): |
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217 '''Matcher will match everything and .files() will be empty |
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218 - optimization might be possible and necessary.''' |
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219 return self._always |
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221 def ispartial(self): |
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222 '''True if the matcher won't always match. |
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223 |
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224 Although it's just the inverse of _always in this implementation, |
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225 an extenion such as narrowhg might make it return something |
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226 slightly different.''' |
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227 return not self._always |
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228 |
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229 def isexact(self): |
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230 return self.matchfn == self.exact |
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231 |
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232 def prefix(self): |
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233 return not self.always() and not self.isexact() and not self.anypats() |
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234 |
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235 def _normalize(self, patterns, default, root, cwd, auditor): |
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236 '''Convert 'kind:pat' from the patterns list to tuples with kind and |
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237 normalized and rooted patterns and with listfiles expanded.''' |
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238 kindpats = [] |
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239 for kind, pat in [_patsplit(p, default) for p in patterns]: |
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240 if kind in ('glob', 'relpath'): |
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241 pat = pathutil.canonpath(root, cwd, pat, auditor) |
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242 elif kind in ('relglob', 'path'): |
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243 pat = util.normpath(pat) |
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244 elif kind in ('listfile', 'listfile0'): |
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245 try: |
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246 files = util.readfile(pat) |
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247 if kind == 'listfile0': |
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248 files = files.split('\0') |
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249 else: |
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250 files = files.splitlines() |
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251 files = [f for f in files if f] |
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252 except EnvironmentError: |
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253 raise util.Abort(_("unable to read file list (%s)") % pat) |
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254 for k, p, source in self._normalize(files, default, root, cwd, |
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255 auditor): |
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256 kindpats.append((k, p, pat)) |
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257 continue |
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258 elif kind == 'include': |
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259 try: |
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260 includepats = readpatternfile(pat, self._warn) |
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261 for k, p, source in self._normalize(includepats, default, |
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262 root, cwd, auditor): |
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263 kindpats.append((k, p, source or pat)) |
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264 except util.Abort, inst: |
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265 raise util.Abort('%s: %s' % (pat, inst[0])) |
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266 except IOError, inst: |
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267 if self._warn: |
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268 self._warn(_("skipping unreadable pattern file " |
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269 "'%s': %s\n") % (pat, inst.strerror)) |
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270 continue |
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271 # else: re or relre - which cannot be normalized |
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272 kindpats.append((kind, pat, '')) |
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273 return kindpats |
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274 |
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275 def exact(root, cwd, files): |
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276 return match(root, cwd, files, exact=True) |
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277 |
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278 def always(root, cwd): |
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279 return match(root, cwd, []) |
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280 |
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281 class narrowmatcher(match): |
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282 """Adapt a matcher to work on a subdirectory only. |
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283 |
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284 The paths are remapped to remove/insert the path as needed: |
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285 |
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286 >>> m1 = match('root', '', ['a.txt', 'sub/b.txt']) |
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287 >>> m2 = narrowmatcher('sub', m1) |
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288 >>> bool(m2('a.txt')) |
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289 False |
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290 >>> bool(m2('b.txt')) |
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291 True |
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292 >>> bool(m2.matchfn('a.txt')) |
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293 False |
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294 >>> bool(m2.matchfn('b.txt')) |
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295 True |
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296 >>> m2.files() |
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297 ['b.txt'] |
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298 >>> m2.exact('b.txt') |
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299 True |
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300 >>> util.pconvert(m2.rel('b.txt')) |
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301 'sub/b.txt' |
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302 >>> def bad(f, msg): |
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303 ... print "%s: %s" % (f, msg) |
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304 >>> m1.bad = bad |
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305 >>> m2.bad('x.txt', 'No such file') |
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306 sub/x.txt: No such file |
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307 >>> m2.abs('c.txt') |
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308 'sub/c.txt' |
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309 """ |
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310 |
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311 def __init__(self, path, matcher): |
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312 self._root = matcher._root |
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313 self._cwd = matcher._cwd |
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314 self._path = path |
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315 self._matcher = matcher |
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316 self._always = matcher._always |
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317 self._pathrestricted = matcher._pathrestricted |
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318 |
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319 self._files = [f[len(path) + 1:] for f in matcher._files |
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320 if f.startswith(path + "/")] |
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321 |
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322 # If the parent repo had a path to this subrepo and no patterns are |
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323 # specified, this submatcher always matches. |
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324 if not self._always and not matcher._anypats: |
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326 |
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327 self._anypats = matcher._anypats |
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328 self.matchfn = lambda fn: matcher.matchfn(self._path + "/" + fn) |
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329 self._fileroots = set(self._files) |
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330 |
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331 def abs(self, f): |
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332 return self._matcher.abs(self._path + "/" + f) |
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333 |
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334 def bad(self, f, msg): |
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335 self._matcher.bad(self._path + "/" + f, msg) |
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336 |
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337 def rel(self, f): |
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338 return self._matcher.rel(self._path + "/" + f) |
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339 |
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340 class icasefsmatcher(match): |
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341 """A matcher for wdir on case insensitive filesystems, which normalizes the |
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342 given patterns to the case in the filesystem. |
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343 """ |
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344 |
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345 def __init__(self, root, cwd, patterns, include, exclude, default, auditor, |
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346 ctx, listsubrepos=False): |
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347 init = super(icasefsmatcher, self).__init__ |
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348 self._dsnormalize = ctx.repo().dirstate.normalize |
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349 |
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350 init(root, cwd, patterns, include, exclude, default, auditor=auditor, |
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351 ctx=ctx, listsubrepos=listsubrepos) |
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352 |
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353 # m.exact(file) must be based off of the actual user input, otherwise |
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354 # inexact case matches are treated as exact, and not noted without -v. |
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355 if self._files: |
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356 self._fileroots = set(_roots(self._kp)) |
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357 |
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358 def _normalize(self, patterns, default, root, cwd, auditor): |
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359 self._kp = super(icasefsmatcher, self)._normalize(patterns, default, |
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360 root, cwd, auditor) |
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361 kindpats = [] |
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362 for kind, pats, source in self._kp: |
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363 if kind not in ('re', 'relre'): # regex can't be normalized |
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364 pats = self._dsnormalize(pats) |
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365 kindpats.append((kind, pats, source)) |
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366 return kindpats |
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367 |
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368 def patkind(pattern, default=None): |
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369 '''If pattern is 'kind:pat' with a known kind, return kind.''' |
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370 return _patsplit(pattern, default)[0] |
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371 |
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372 def _patsplit(pattern, default): |
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373 """Split a string into the optional pattern kind prefix and the actual |
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374 pattern.""" |
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375 if ':' in pattern: |
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376 kind, pat = pattern.split(':', 1) |
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377 if kind in ('re', 'glob', 'path', 'relglob', 'relpath', 'relre', |
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378 'listfile', 'listfile0', 'set', 'include'): |
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379 return kind, pat |
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380 return default, pattern |
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381 |
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382 def _globre(pat): |
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383 r'''Convert an extended glob string to a regexp string. |
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384 |
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385 >>> print _globre(r'?') |
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386 . |
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387 >>> print _globre(r'*') |
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388 [^/]* |
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389 >>> print _globre(r'**') |
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390 .* |
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391 >>> print _globre(r'**/a') |
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392 (?:.*/)?a |
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393 >>> print _globre(r'a/**/b') |
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394 a\/(?:.*/)?b |
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395 >>> print _globre(r'[a*?!^][^b][!c]') |
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396 [a*?!^][\^b][^c] |
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397 >>> print _globre(r'{a,b}') |
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398 (?:a|b) |
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399 >>> print _globre(r'.\*\?') |
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400 \.\*\? |
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401 ''' |
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402 i, n = 0, len(pat) |
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403 res = '' |
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404 group = 0 |
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405 escape = util.re.escape |
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406 def peek(): |
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407 return i < n and pat[i] |
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408 while i < n: |
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409 c = pat[i] |
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410 i += 1 |
8583
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411 if c not in '*?[{},\\': |
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412 res += escape(c) |
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413 elif c == '*': |
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414 if peek() == '*': |
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415 i += 1 |
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416 if peek() == '/': |
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417 i += 1 |
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418 res += '(?:.*/)?' |
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419 else: |
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420 res += '.*' |
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421 else: |
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422 res += '[^/]*' |
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|
423 elif c == '?': |
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|
424 res += '.' |
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|
425 elif c == '[': |
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|
426 j = i |
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427 if j < n and pat[j] in '!]': |
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428 j += 1 |
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429 while j < n and pat[j] != ']': |
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430 j += 1 |
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431 if j >= n: |
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432 res += '\\[' |
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433 else: |
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434 stuff = pat[i:j].replace('\\','\\\\') |
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435 i = j + 1 |
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436 if stuff[0] == '!': |
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|
437 stuff = '^' + stuff[1:] |
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438 elif stuff[0] == '^': |
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|
439 stuff = '\\' + stuff |
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|
440 res = '%s[%s]' % (res, stuff) |
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441 elif c == '{': |
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|
442 group += 1 |
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|
443 res += '(?:' |
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444 elif c == '}' and group: |
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|
445 res += ')' |
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|
446 group -= 1 |
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|
447 elif c == ',' and group: |
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|
448 res += '|' |
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|
449 elif c == '\\': |
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|
450 p = peek() |
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|
451 if p: |
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|
452 i += 1 |
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|
453 res += escape(p) |
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454 else: |
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455 res += escape(c) |
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456 else: |
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457 res += escape(c) |
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458 return res |
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459 |
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460 def _regex(kind, pat, globsuffix): |
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461 '''Convert a (normalized) pattern of any kind into a regular expression. |
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462 globsuffix is appended to the regexp of globs.''' |
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463 if not pat: |
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464 return '' |
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465 if kind == 're': |
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466 return pat |
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467 if kind == 'path': |
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468 return '^' + util.re.escape(pat) + '(?:/|$)' |
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469 if kind == 'relglob': |
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470 return '(?:|.*/)' + _globre(pat) + globsuffix |
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471 if kind == 'relpath': |
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472 return util.re.escape(pat) + '(?:/|$)' |
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473 if kind == 'relre': |
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474 if pat.startswith('^'): |
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475 return pat |
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476 return '.*' + pat |
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477 return _globre(pat) + globsuffix |
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478 |
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479 def _buildmatch(ctx, kindpats, globsuffix, listsubrepos, root): |
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480 '''Return regexp string and a matcher function for kindpats. |
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481 globsuffix is appended to the regexp of globs.''' |
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482 matchfuncs = [] |
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483 |
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484 fset, kindpats = _expandsets(kindpats, ctx, listsubrepos) |
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485 if fset: |
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486 matchfuncs.append(fset.__contains__) |
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487 |
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488 regex = '' |
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489 if kindpats: |
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490 regex, mf = _buildregexmatch(kindpats, globsuffix) |
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491 matchfuncs.append(mf) |
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492 |
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493 if len(matchfuncs) == 1: |
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494 return regex, matchfuncs[0] |
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495 else: |
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496 return regex, lambda f: any(mf(f) for mf in matchfuncs) |
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497 |
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498 def _buildregexmatch(kindpats, globsuffix): |
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499 """Build a match function from a list of kinds and kindpats, |
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500 return regexp string and a matcher function.""" |
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501 try: |
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502 regex = '(?:%s)' % '|'.join([_regex(k, p, globsuffix) |
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503 for (k, p, s) in kindpats]) |
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504 if len(regex) > 20000: |
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505 raise OverflowError |
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506 return regex, _rematcher(regex) |
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507 except OverflowError: |
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508 # We're using a Python with a tiny regex engine and we |
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509 # made it explode, so we'll divide the pattern list in two |
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510 # until it works |
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511 l = len(kindpats) |
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512 if l < 2: |
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513 raise |
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514 regexa, a = _buildregexmatch(kindpats[:l//2], globsuffix) |
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515 regexb, b = _buildregexmatch(kindpats[l//2:], globsuffix) |
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516 return regex, lambda s: a(s) or b(s) |
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517 except re.error: |
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518 for k, p, s in kindpats: |
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519 try: |
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520 _rematcher('(?:%s)' % _regex(k, p, globsuffix)) |
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521 except re.error: |
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522 if s: |
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523 raise util.Abort(_("%s: invalid pattern (%s): %s") % |
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524 (s, k, p)) |
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525 else: |
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526 raise util.Abort(_("invalid pattern (%s): %s") % (k, p)) |
12133
b046b90c4ae5
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diff
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527 raise util.Abort(_("invalid pattern")) |
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528 |
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529 def _roots(kindpats): |
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530 '''return roots and exact explicitly listed files from patterns |
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|
531 |
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532 >>> _roots([('glob', 'g/*', ''), ('glob', 'g', ''), ('glob', 'g*', '')]) |
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533 ['g', 'g', '.'] |
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534 >>> _roots([('relpath', 'r', ''), ('path', 'p/p', ''), ('path', '', '')]) |
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|
535 ['r', 'p/p', '.'] |
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536 >>> _roots([('relglob', 'rg*', ''), ('re', 're/', ''), ('relre', 'rr', '')]) |
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|
537 ['.', '.', '.'] |
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|
538 ''' |
8576
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parents:
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539 r = [] |
25213
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parents:
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diff
changeset
|
540 for kind, pat, source in kindpats: |
8584
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match: fold _globprefix into _roots
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parents:
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541 if kind == 'glob': # find the non-glob prefix |
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match: fold _globprefix into _roots
Matt Mackall <mpm@selenic.com>
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542 root = [] |
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543 for p in pat.split('/'): |
8584
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match: fold _globprefix into _roots
Matt Mackall <mpm@selenic.com>
parents:
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diff
changeset
|
544 if '[' in p or '{' in p or '*' in p or '?' in p: |
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Matt Mackall <mpm@selenic.com>
parents:
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diff
changeset
|
545 break |
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Matt Mackall <mpm@selenic.com>
parents:
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|
546 root.append(p) |
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Matt Mackall <mpm@selenic.com>
parents:
8583
diff
changeset
|
547 r.append('/'.join(root) or '.') |
8574
63a7ed2128d5
match: unnest functions in _matcher
Matt Mackall <mpm@selenic.com>
parents:
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|
548 elif kind in ('relpath', 'path'): |
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|
549 r.append(pat or '.') |
19107
fcf08023c011
match: fix root calculation for combining regexps with simple paths
Mads Kiilerich <madski@unity3d.com>
parents:
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diff
changeset
|
550 else: # relglob, re, relre |
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551 r.append('.') |
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match: split up _normalizepats
Matt Mackall <mpm@selenic.com>
parents:
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|
552 return r |
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Matt Mackall <mpm@selenic.com>
parents:
8575
diff
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|
553 |
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554 def _anypats(kindpats): |
25213
08a8e9da0ae7
match: add source to kindpats list
Durham Goode <durham@fb.com>
parents:
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diff
changeset
|
555 for kind, pat, source in kindpats: |
16182
bd12ef347680
match: consider filesets as "anypats"
Patrick Mezard <patrick@mezard.eu>
parents:
15029
diff
changeset
|
556 if kind in ('glob', 're', 'relglob', 'relre', 'set'): |
8576
ec4ed21db4b2
match: split up _normalizepats
Matt Mackall <mpm@selenic.com>
parents:
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diff
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557 return True |
25167
6f7048cc2419
ignore: move readpatternfile to match.py
Durham Goode <durham@fb.com>
parents:
25122
diff
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|
558 |
6f7048cc2419
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Durham Goode <durham@fb.com>
parents:
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|
559 _commentre = None |
6f7048cc2419
ignore: move readpatternfile to match.py
Durham Goode <durham@fb.com>
parents:
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diff
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|
560 |
6f7048cc2419
ignore: move readpatternfile to match.py
Durham Goode <durham@fb.com>
parents:
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diff
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|
561 def readpatternfile(filepath, warn): |
6f7048cc2419
ignore: move readpatternfile to match.py
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562 '''parse a pattern file, returning a list of |
6f7048cc2419
ignore: move readpatternfile to match.py
Durham Goode <durham@fb.com>
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diff
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|
563 patterns. These patterns should be given to compile() |
25216
dc562165044a
ignore: use 'include:' rules instead of custom syntax
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diff
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|
564 to be validated and converted into a match function. |
dc562165044a
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Durham Goode <durham@fb.com>
parents:
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diff
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|
565 |
dc562165044a
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Durham Goode <durham@fb.com>
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diff
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|
566 trailing white space is dropped. |
dc562165044a
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diff
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|
567 the escape character is backslash. |
dc562165044a
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Durham Goode <durham@fb.com>
parents:
25215
diff
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|
568 comments start with #. |
dc562165044a
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Durham Goode <durham@fb.com>
parents:
25215
diff
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|
569 empty lines are skipped. |
dc562165044a
ignore: use 'include:' rules instead of custom syntax
Durham Goode <durham@fb.com>
parents:
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diff
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|
570 |
dc562165044a
ignore: use 'include:' rules instead of custom syntax
Durham Goode <durham@fb.com>
parents:
25215
diff
changeset
|
571 lines can be of the following formats: |
dc562165044a
ignore: use 'include:' rules instead of custom syntax
Durham Goode <durham@fb.com>
parents:
25215
diff
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|
572 |
dc562165044a
ignore: use 'include:' rules instead of custom syntax
Durham Goode <durham@fb.com>
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diff
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|
573 syntax: regexp # defaults following lines to non-rooted regexps |
dc562165044a
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|
574 syntax: glob # defaults following lines to non-rooted globs |
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diff
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|
575 re:pattern # non-rooted regular expression |
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|
576 glob:pattern # non-rooted glob |
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diff
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|
577 pattern # pattern of the current default type''' |
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Durham Goode <durham@fb.com>
parents:
25215
diff
changeset
|
578 |
25215
4040e06e9b99
match: add 'include:' syntax
Durham Goode <durham@fb.com>
parents:
25214
diff
changeset
|
579 syntaxes = {'re': 'relre:', 'regexp': 'relre:', 'glob': 'relglob:', |
4040e06e9b99
match: add 'include:' syntax
Durham Goode <durham@fb.com>
parents:
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diff
changeset
|
580 'include': 'include'} |
25167
6f7048cc2419
ignore: move readpatternfile to match.py
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parents:
25122
diff
changeset
|
581 syntax = 'relre:' |
6f7048cc2419
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Durham Goode <durham@fb.com>
parents:
25122
diff
changeset
|
582 patterns = [] |
6f7048cc2419
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Durham Goode <durham@fb.com>
parents:
25122
diff
changeset
|
583 |
6f7048cc2419
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Durham Goode <durham@fb.com>
parents:
25122
diff
changeset
|
584 fp = open(filepath) |
6f7048cc2419
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585 for line in fp: |
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586 if "#" in line: |
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587 global _commentre |
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588 if not _commentre: |
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589 _commentre = re.compile(r'((^|[^\\])(\\\\)*)#.*') |
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590 # remove comments prefixed by an even number of escapes |
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591 line = _commentre.sub(r'\1', line) |
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592 # fixup properly escaped comments that survived the above |
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593 line = line.replace("\\#", "#") |
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594 line = line.rstrip() |
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595 if not line: |
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596 continue |
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597 |
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598 if line.startswith('syntax:'): |
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599 s = line[7:].strip() |
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600 try: |
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601 syntax = syntaxes[s] |
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602 except KeyError: |
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603 if warn: |
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604 warn(_("%s: ignoring invalid syntax '%s'\n") % |
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605 (filepath, s)) |
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606 continue |
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607 |
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608 linesyntax = syntax |
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609 for s, rels in syntaxes.iteritems(): |
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610 if line.startswith(rels): |
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611 linesyntax = rels |
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612 line = line[len(rels):] |
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613 break |
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614 elif line.startswith(s+':'): |
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615 linesyntax = rels |
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616 line = line[len(s) + 1:] |
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617 break |
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618 patterns.append(linesyntax + line) |
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619 fp.close() |
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620 return patterns |