Mercurial > hg
annotate mercurial/match.py @ 26402:05871262acd5
treemanifest: rework lazy-copying code (issue4840)
The old lazy-copy code formed a chain of copied manifests with each
copy. Under typical operation, the stack never got more than a couple
of manifests deep and was fine. Under conditions like hgsubversion or
convert, the stack could get hundreds of manifests deep, and
eventually overflow the recursion limit for Python. I was able to
consistently reproduce this by converting an hgsubversion clone of
svn's history to treemanifests.
This may result in fewer manifests staying in memory during operations
like convert when treemanifests are in use, and should make those
operations faster since there will be significantly fewer noop
function calls going on.
A previous attempt (never mailed) of mine to fix this problem tried to
simply have all treemanifests only have a loadfunc - that caused
somewhat weird problems because the gettext() callable passed into
read() wasn't idempotent, so the easy solution is to have a loadfunc
and a copyfunc.
author | Augie Fackler <augie@google.com> |
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date | Fri, 25 Sep 2015 22:54:46 -0400 |
parents | a5f62af29517 |
children | 56b2bcea2529 |
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 from __future__ import absolute_import |
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9 |
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10 import copy |
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11 import os |
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12 import re |
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13 |
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14 from .i18n import _ |
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15 from . import ( |
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16 pathutil, |
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17 util, |
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18 ) |
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20 propertycache = util.propertycache |
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21 |
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22 def _rematcher(regex): |
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23 '''compile the regexp with the best available regexp engine and return a |
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24 matcher function''' |
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25 m = util.re.compile(regex) |
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26 try: |
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27 # slightly faster, provided by facebook's re2 bindings |
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28 return m.test_match |
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29 except AttributeError: |
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30 return m.match |
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31 |
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32 def _expandsets(kindpats, ctx, listsubrepos): |
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33 '''Returns the kindpats list with the 'set' patterns expanded.''' |
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34 fset = set() |
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35 other = [] |
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36 |
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37 for kind, pat, source in kindpats: |
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38 if kind == 'set': |
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39 if not ctx: |
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40 raise util.Abort("fileset expression with no context") |
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41 s = ctx.getfileset(pat) |
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42 fset.update(s) |
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43 |
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44 if listsubrepos: |
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45 for subpath in ctx.substate: |
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46 s = ctx.sub(subpath).getfileset(pat) |
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47 fset.update(subpath + '/' + f for f in s) |
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48 |
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49 continue |
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50 other.append((kind, pat, source)) |
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51 return fset, other |
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52 |
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53 def _expandsubinclude(kindpats, root): |
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54 '''Returns the list of subinclude matchers and the kindpats without the |
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55 subincludes in it.''' |
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56 relmatchers = [] |
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57 other = [] |
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58 |
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59 for kind, pat, source in kindpats: |
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60 if kind == 'subinclude': |
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61 sourceroot = pathutil.dirname(util.normpath(source)) |
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62 pat = util.pconvert(pat) |
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63 path = pathutil.join(sourceroot, pat) |
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64 |
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65 newroot = pathutil.dirname(path) |
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66 relmatcher = match(newroot, '', [], ['include:%s' % path]) |
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67 |
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68 prefix = pathutil.canonpath(root, root, newroot) |
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69 if prefix: |
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70 prefix += '/' |
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71 relmatchers.append((prefix, relmatcher)) |
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72 else: |
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73 other.append((kind, pat, source)) |
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74 |
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75 return relmatchers, other |
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76 |
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77 def _kindpatsalwaysmatch(kindpats): |
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78 """"Checks whether the kindspats match everything, as e.g. |
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79 'relpath:.' does. |
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80 """ |
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81 for kind, pat, source in kindpats: |
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82 if pat != '' or kind not in ['relpath', 'glob']: |
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83 return False |
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84 return True |
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85 |
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86 class match(object): |
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87 def __init__(self, root, cwd, patterns, include=[], exclude=[], |
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88 default='glob', exact=False, auditor=None, ctx=None, |
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89 listsubrepos=False, warn=None, badfn=None): |
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90 """build an object to match a set of file patterns |
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91 |
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92 arguments: |
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93 root - the canonical root of the tree you're matching against |
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94 cwd - the current working directory, if relevant |
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95 patterns - patterns to find |
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96 include - patterns to include (unless they are excluded) |
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97 exclude - patterns to exclude (even if they are included) |
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98 default - if a pattern in patterns has no explicit type, assume this one |
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99 exact - patterns are actually filenames (include/exclude still apply) |
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100 warn - optional function used for printing warnings |
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101 badfn - optional bad() callback for this matcher instead of the default |
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102 |
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103 a pattern is one of: |
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104 'glob:<glob>' - a glob relative to cwd |
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105 're:<regexp>' - a regular expression |
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106 'path:<path>' - a path relative to repository root |
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107 'relglob:<glob>' - an unrooted glob (*.c matches C files in all dirs) |
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108 'relpath:<path>' - a path relative to cwd |
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109 'relre:<regexp>' - a regexp that needn't match the start of a name |
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110 'set:<fileset>' - a fileset expression |
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111 'include:<path>' - a file of patterns to read and include |
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112 'subinclude:<path>' - a file of patterns to match against files under |
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113 the same directory |
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114 '<something>' - a pattern of the specified default type |
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115 """ |
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116 |
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117 self._root = root |
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118 self._cwd = cwd |
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119 self._files = [] # exact files and roots of patterns |
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120 self._anypats = bool(include or exclude) |
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121 self._always = False |
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122 self._pathrestricted = bool(include or exclude or patterns) |
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123 self._warn = warn |
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124 self._includeroots = set() |
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125 self._includedirs = set(['.']) |
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126 self._excluderoots = set() |
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127 |
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128 if badfn is not None: |
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129 self.bad = badfn |
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130 |
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131 matchfns = [] |
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132 if include: |
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133 kindpats = self._normalize(include, 'glob', root, cwd, auditor) |
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134 self.includepat, im = _buildmatch(ctx, kindpats, '(?:/|$)', |
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135 listsubrepos, root) |
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136 self._includeroots.update(_roots(kindpats)) |
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137 self._includedirs.update(util.dirs(self._includeroots)) |
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138 matchfns.append(im) |
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139 if exclude: |
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140 kindpats = self._normalize(exclude, 'glob', root, cwd, auditor) |
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141 self.excludepat, em = _buildmatch(ctx, kindpats, '(?:/|$)', |
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142 listsubrepos, root) |
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143 if not _anypats(kindpats): |
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144 self._excluderoots.update(_roots(kindpats)) |
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145 matchfns.append(lambda f: not em(f)) |
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146 if exact: |
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147 if isinstance(patterns, list): |
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148 self._files = patterns |
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149 else: |
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150 self._files = list(patterns) |
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151 matchfns.append(self.exact) |
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152 elif patterns: |
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153 kindpats = self._normalize(patterns, default, root, cwd, auditor) |
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154 if not _kindpatsalwaysmatch(kindpats): |
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155 self._files = _roots(kindpats) |
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156 self._anypats = self._anypats or _anypats(kindpats) |
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157 self.patternspat, pm = _buildmatch(ctx, kindpats, '$', |
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158 listsubrepos, root) |
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159 matchfns.append(pm) |
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160 |
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161 if not matchfns: |
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162 m = util.always |
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163 self._always = True |
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164 elif len(matchfns) == 1: |
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165 m = matchfns[0] |
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166 else: |
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167 def m(f): |
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168 for matchfn in matchfns: |
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169 if not matchfn(f): |
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170 return False |
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171 return True |
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172 |
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173 self.matchfn = m |
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174 self._fileroots = set(self._files) |
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175 |
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176 def __call__(self, fn): |
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177 return self.matchfn(fn) |
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178 def __iter__(self): |
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179 for f in self._files: |
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180 yield f |
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181 |
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182 # Callbacks related to how the matcher is used by dirstate.walk. |
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183 # Subscribers to these events must monkeypatch the matcher object. |
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184 def bad(self, f, msg): |
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185 '''Callback from dirstate.walk for each explicit file that can't be |
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186 found/accessed, with an error message.''' |
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187 pass |
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188 |
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189 # If an explicitdir is set, it will be called when an explicitly listed |
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190 # directory is visited. |
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191 explicitdir = None |
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192 |
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193 # If an traversedir is set, it will be called when a directory discovered |
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194 # by recursive traversal is visited. |
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195 traversedir = None |
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196 |
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197 def abs(self, f): |
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198 '''Convert a repo path back to path that is relative to the root of the |
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199 matcher.''' |
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200 return f |
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201 |
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202 def rel(self, f): |
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203 '''Convert repo path back to path that is relative to cwd of matcher.''' |
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204 return util.pathto(self._root, self._cwd, f) |
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205 |
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206 def uipath(self, f): |
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207 '''Convert repo path to a display path. If patterns or -I/-X were used |
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208 to create this matcher, the display path will be relative to cwd. |
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209 Otherwise it is relative to the root of the repo.''' |
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210 return (self._pathrestricted and self.rel(f)) or self.abs(f) |
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211 |
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212 def files(self): |
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213 '''Explicitly listed files or patterns or roots: |
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214 if no patterns or .always(): empty list, |
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215 if exact: list exact files, |
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216 if not .anypats(): list all files and dirs, |
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217 else: optimal roots''' |
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218 return self._files |
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219 |
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220 @propertycache |
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221 def _dirs(self): |
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222 return set(util.dirs(self._fileroots)) | set(['.']) |
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223 |
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224 def visitdir(self, dir): |
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225 '''Decides whether a directory should be visited based on whether it |
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226 has potential matches in it or one of its subdirectories. This is |
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227 based on the match's primary, included, and excluded patterns. |
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228 |
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229 This function's behavior is undefined if it has returned False for |
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230 one of the dir's parent directories. |
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231 ''' |
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232 if dir in self._excluderoots: |
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233 return False |
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234 if (self._includeroots and |
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235 '.' not in self._includeroots and |
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236 dir not in self._includeroots and |
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237 dir not in self._includedirs and |
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238 not any(parent in self._includeroots |
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239 for parent in util.finddirs(dir))): |
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240 return False |
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241 return (not self._fileroots or |
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242 '.' in self._fileroots or |
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243 dir in self._fileroots or |
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244 dir in self._dirs or |
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245 any(parentdir in self._fileroots |
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246 for parentdir in util.finddirs(dir))) |
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247 |
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248 def exact(self, f): |
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249 '''Returns True if f is in .files().''' |
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250 return f in self._fileroots |
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251 |
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252 def anypats(self): |
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253 '''Matcher uses patterns or include/exclude.''' |
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254 return self._anypats |
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255 |
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256 def always(self): |
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257 '''Matcher will match everything and .files() will be empty |
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258 - optimization might be possible and necessary.''' |
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259 return self._always |
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261 def ispartial(self): |
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262 '''True if the matcher won't always match. |
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263 |
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264 Although it's just the inverse of _always in this implementation, |
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265 an extenion such as narrowhg might make it return something |
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266 slightly different.''' |
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267 return not self._always |
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268 |
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269 def isexact(self): |
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270 return self.matchfn == self.exact |
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271 |
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272 def prefix(self): |
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273 return not self.always() and not self.isexact() and not self.anypats() |
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274 |
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275 def _normalize(self, patterns, default, root, cwd, auditor): |
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276 '''Convert 'kind:pat' from the patterns list to tuples with kind and |
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277 normalized and rooted patterns and with listfiles expanded.''' |
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278 kindpats = [] |
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279 for kind, pat in [_patsplit(p, default) for p in patterns]: |
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280 if kind in ('glob', 'relpath'): |
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281 pat = pathutil.canonpath(root, cwd, pat, auditor) |
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282 elif kind in ('relglob', 'path'): |
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283 pat = util.normpath(pat) |
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284 elif kind in ('listfile', 'listfile0'): |
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285 try: |
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286 files = util.readfile(pat) |
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287 if kind == 'listfile0': |
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288 files = files.split('\0') |
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289 else: |
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290 files = files.splitlines() |
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291 files = [f for f in files if f] |
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292 except EnvironmentError: |
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293 raise util.Abort(_("unable to read file list (%s)") % pat) |
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294 for k, p, source in self._normalize(files, default, root, cwd, |
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295 auditor): |
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296 kindpats.append((k, p, pat)) |
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297 continue |
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298 elif kind == 'include': |
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299 try: |
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300 fullpath = os.path.join(root, util.localpath(pat)) |
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301 includepats = readpatternfile(fullpath, self._warn) |
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302 for k, p, source in self._normalize(includepats, default, |
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303 root, cwd, auditor): |
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304 kindpats.append((k, p, source or pat)) |
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305 except util.Abort as inst: |
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306 raise util.Abort('%s: %s' % (pat, inst[0])) |
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307 except IOError as inst: |
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308 if self._warn: |
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309 self._warn(_("skipping unreadable pattern file " |
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310 "'%s': %s\n") % (pat, inst.strerror)) |
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311 continue |
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312 # else: re or relre - which cannot be normalized |
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313 kindpats.append((kind, pat, '')) |
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314 return kindpats |
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315 |
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316 def exact(root, cwd, files, badfn=None): |
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317 return match(root, cwd, files, exact=True, badfn=badfn) |
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318 |
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319 def always(root, cwd): |
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320 return match(root, cwd, []) |
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321 |
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322 def badmatch(match, badfn): |
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323 """Make a copy of the given matcher, replacing its bad method with the given |
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324 one. |
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325 """ |
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326 m = copy.copy(match) |
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327 m.bad = badfn |
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328 return m |
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329 |
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330 class narrowmatcher(match): |
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331 """Adapt a matcher to work on a subdirectory only. |
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332 |
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333 The paths are remapped to remove/insert the path as needed: |
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334 |
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335 >>> m1 = match('root', '', ['a.txt', 'sub/b.txt']) |
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336 >>> m2 = narrowmatcher('sub', m1) |
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337 >>> bool(m2('a.txt')) |
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338 False |
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339 >>> bool(m2('b.txt')) |
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340 True |
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341 >>> bool(m2.matchfn('a.txt')) |
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342 False |
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343 >>> bool(m2.matchfn('b.txt')) |
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344 True |
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345 >>> m2.files() |
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346 ['b.txt'] |
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347 >>> m2.exact('b.txt') |
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348 True |
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349 >>> util.pconvert(m2.rel('b.txt')) |
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|
350 'sub/b.txt' |
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351 >>> def bad(f, msg): |
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352 ... print "%s: %s" % (f, msg) |
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353 >>> m1.bad = bad |
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354 >>> m2.bad('x.txt', 'No such file') |
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|
355 sub/x.txt: No such file |
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|
356 >>> m2.abs('c.txt') |
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|
357 'sub/c.txt' |
12165
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358 """ |
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359 |
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360 def __init__(self, path, matcher): |
12267
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361 self._root = matcher._root |
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362 self._cwd = matcher._cwd |
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363 self._path = path |
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|
364 self._matcher = matcher |
18713
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match: more accurately report when we're always going to match
Bryan O'Sullivan <bryano@fb.com>
parents:
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diff
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|
365 self._always = matcher._always |
23480
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match: introduce uipath() to properly style a file path
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parents:
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diff
changeset
|
366 self._pathrestricted = matcher._pathrestricted |
12165
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|
367 |
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368 self._files = [f[len(path) + 1:] for f in matcher._files |
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|
369 if f.startswith(path + "/")] |
25194
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match: explicitly naming a subrepo implies always() for the submatcher
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diff
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|
370 |
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changeset
|
371 # If the parent repo had a path to this subrepo and no patterns are |
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diff
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|
372 # specified, this submatcher always matches. |
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|
373 if not self._always and not matcher._anypats: |
25195 | 374 self._always = any(f == path for f in matcher._files) |
25194
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match: explicitly naming a subrepo implies always() for the submatcher
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diff
changeset
|
375 |
12165
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|
376 self._anypats = matcher._anypats |
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377 self.matchfn = lambda fn: matcher.matchfn(self._path + "/" + fn) |
25189
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match: rename _fmap to _fileroots for clarity
Drew Gottlieb <drgott@google.com>
parents:
25188
diff
changeset
|
378 self._fileroots = set(self._files) |
12165
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|
379 |
23685
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diff
changeset
|
380 def abs(self, f): |
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match: add the abs() method
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|
381 return self._matcher.abs(self._path + "/" + f) |
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match: add the abs() method
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diff
changeset
|
382 |
12268
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diff
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|
383 def bad(self, f, msg): |
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diff
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|
384 self._matcher.bad(self._path + "/" + f, msg) |
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|
385 |
23686
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diff
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|
386 def rel(self, f): |
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387 return self._matcher.rel(self._path + "/" + f) |
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|
388 |
24790
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diff
changeset
|
389 class icasefsmatcher(match): |
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|
390 """A matcher for wdir on case insensitive filesystems, which normalizes the |
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|
391 given patterns to the case in the filesystem. |
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|
392 """ |
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|
393 |
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diff
changeset
|
394 def __init__(self, root, cwd, patterns, include, exclude, default, auditor, |
25464
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match: add an optional constructor parameter for a bad() override
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parents:
25433
diff
changeset
|
395 ctx, listsubrepos=False, badfn=None): |
24790
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|
396 init = super(icasefsmatcher, self).__init__ |
26000
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match: fix a caseonly rename + explicit path commit on icasefs (issue4768)
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parents:
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diff
changeset
|
397 self._dirstate = ctx.repo().dirstate |
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|
398 self._dsnormalize = self._dirstate.normalize |
24790
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changeset
|
399 |
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diff
changeset
|
400 init(root, cwd, patterns, include, exclude, default, auditor=auditor, |
25464
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match: add an optional constructor parameter for a bad() override
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parents:
25433
diff
changeset
|
401 ctx=ctx, listsubrepos=listsubrepos, badfn=badfn) |
24790
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diff
changeset
|
402 |
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diff
changeset
|
403 # m.exact(file) must be based off of the actual user input, otherwise |
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parents:
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diff
changeset
|
404 # inexact case matches are treated as exact, and not noted without -v. |
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parents:
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diff
changeset
|
405 if self._files: |
25189
1c8c33eaea0a
match: rename _fmap to _fileroots for clarity
Drew Gottlieb <drgott@google.com>
parents:
25188
diff
changeset
|
406 self._fileroots = set(_roots(self._kp)) |
24790
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parents:
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diff
changeset
|
407 |
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parents:
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diff
changeset
|
408 def _normalize(self, patterns, default, root, cwd, auditor): |
baa11dde8c0e
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parents:
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diff
changeset
|
409 self._kp = super(icasefsmatcher, self)._normalize(patterns, default, |
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parents:
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diff
changeset
|
410 root, cwd, auditor) |
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parents:
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diff
changeset
|
411 kindpats = [] |
25213
08a8e9da0ae7
match: add source to kindpats list
Durham Goode <durham@fb.com>
parents:
25195
diff
changeset
|
412 for kind, pats, source in self._kp: |
24790
baa11dde8c0e
match: add a subclass for dirstate normalizing of the matched patterns
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parents:
24789
diff
changeset
|
413 if kind not in ('re', 'relre'): # regex can't be normalized |
26000
9ac4e81b9659
match: fix a caseonly rename + explicit path commit on icasefs (issue4768)
Matt Harbison <matt_harbison@yahoo.com>
parents:
25875
diff
changeset
|
414 p = pats |
24790
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match: add a subclass for dirstate normalizing of the matched patterns
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parents:
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diff
changeset
|
415 pats = self._dsnormalize(pats) |
26000
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match: fix a caseonly rename + explicit path commit on icasefs (issue4768)
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parents:
25875
diff
changeset
|
416 |
9ac4e81b9659
match: fix a caseonly rename + explicit path commit on icasefs (issue4768)
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parents:
25875
diff
changeset
|
417 # Preserve the original to handle a case only rename. |
9ac4e81b9659
match: fix a caseonly rename + explicit path commit on icasefs (issue4768)
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parents:
25875
diff
changeset
|
418 if p != pats and p in self._dirstate: |
9ac4e81b9659
match: fix a caseonly rename + explicit path commit on icasefs (issue4768)
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parents:
25875
diff
changeset
|
419 kindpats.append((kind, p, source)) |
9ac4e81b9659
match: fix a caseonly rename + explicit path commit on icasefs (issue4768)
Matt Harbison <matt_harbison@yahoo.com>
parents:
25875
diff
changeset
|
420 |
25213
08a8e9da0ae7
match: add source to kindpats list
Durham Goode <durham@fb.com>
parents:
25195
diff
changeset
|
421 kindpats.append((kind, pats, source)) |
24790
baa11dde8c0e
match: add a subclass for dirstate normalizing of the matched patterns
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parents:
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diff
changeset
|
422 return kindpats |
baa11dde8c0e
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parents:
24789
diff
changeset
|
423 |
21111
9d28fd795215
match: improve documentation - docstrings and more descriptive variable naming
Mads Kiilerich <madski@unity3d.com>
parents:
21079
diff
changeset
|
424 def patkind(pattern, default=None): |
9d28fd795215
match: improve documentation - docstrings and more descriptive variable naming
Mads Kiilerich <madski@unity3d.com>
parents:
21079
diff
changeset
|
425 '''If pattern is 'kind:pat' with a known kind, return kind.''' |
9d28fd795215
match: improve documentation - docstrings and more descriptive variable naming
Mads Kiilerich <madski@unity3d.com>
parents:
21079
diff
changeset
|
426 return _patsplit(pattern, default)[0] |
8570
7fe2012b3bd0
match: move util match functions over
Matt Mackall <mpm@selenic.com>
parents:
8568
diff
changeset
|
427 |
21111
9d28fd795215
match: improve documentation - docstrings and more descriptive variable naming
Mads Kiilerich <madski@unity3d.com>
parents:
21079
diff
changeset
|
428 def _patsplit(pattern, default): |
9d28fd795215
match: improve documentation - docstrings and more descriptive variable naming
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parents:
21079
diff
changeset
|
429 """Split a string into the optional pattern kind prefix and the actual |
9d28fd795215
match: improve documentation - docstrings and more descriptive variable naming
Mads Kiilerich <madski@unity3d.com>
parents:
21079
diff
changeset
|
430 pattern.""" |
9d28fd795215
match: improve documentation - docstrings and more descriptive variable naming
Mads Kiilerich <madski@unity3d.com>
parents:
21079
diff
changeset
|
431 if ':' in pattern: |
9d28fd795215
match: improve documentation - docstrings and more descriptive variable naming
Mads Kiilerich <madski@unity3d.com>
parents:
21079
diff
changeset
|
432 kind, pat = pattern.split(':', 1) |
13218
1f4721de2ca9
match: support reading pattern lists from files
Steve Borho <steve@borho.org>
parents:
12268
diff
changeset
|
433 if kind in ('re', 'glob', 'path', 'relglob', 'relpath', 'relre', |
25283
19d0e5efa6ca
match: enable 'subinclude:' syntax
Durham Goode <durham@fb.com>
parents:
25250
diff
changeset
|
434 'listfile', 'listfile0', 'set', 'include', 'subinclude'): |
21111
9d28fd795215
match: improve documentation - docstrings and more descriptive variable naming
Mads Kiilerich <madski@unity3d.com>
parents:
21079
diff
changeset
|
435 return kind, pat |
9d28fd795215
match: improve documentation - docstrings and more descriptive variable naming
Mads Kiilerich <madski@unity3d.com>
parents:
21079
diff
changeset
|
436 return default, pattern |
8570
7fe2012b3bd0
match: move util match functions over
Matt Mackall <mpm@selenic.com>
parents:
8568
diff
changeset
|
437 |
8582
a4c199e12b5a
match: remove head and tail args from _globre
Matt Mackall <mpm@selenic.com>
parents:
8581
diff
changeset
|
438 def _globre(pat): |
21112
03782d2fc776
match: _globre doctests
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parents:
21111
diff
changeset
|
439 r'''Convert an extended glob string to a regexp string. |
03782d2fc776
match: _globre doctests
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parents:
21111
diff
changeset
|
440 |
03782d2fc776
match: _globre doctests
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parents:
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diff
changeset
|
441 >>> print _globre(r'?') |
03782d2fc776
match: _globre doctests
Mads Kiilerich <madski@unity3d.com>
parents:
21111
diff
changeset
|
442 . |
03782d2fc776
match: _globre doctests
Mads Kiilerich <madski@unity3d.com>
parents:
21111
diff
changeset
|
443 >>> print _globre(r'*') |
03782d2fc776
match: _globre doctests
Mads Kiilerich <madski@unity3d.com>
parents:
21111
diff
changeset
|
444 [^/]* |
03782d2fc776
match: _globre doctests
Mads Kiilerich <madski@unity3d.com>
parents:
21111
diff
changeset
|
445 >>> print _globre(r'**') |
03782d2fc776
match: _globre doctests
Mads Kiilerich <madski@unity3d.com>
parents:
21111
diff
changeset
|
446 .* |
21815
a4b67bf1f0a5
match: make glob '**/' match the empty string
Siddharth Agarwal <sid0@fb.com>
parents:
21191
diff
changeset
|
447 >>> print _globre(r'**/a') |
a4b67bf1f0a5
match: make glob '**/' match the empty string
Siddharth Agarwal <sid0@fb.com>
parents:
21191
diff
changeset
|
448 (?:.*/)?a |
a4b67bf1f0a5
match: make glob '**/' match the empty string
Siddharth Agarwal <sid0@fb.com>
parents:
21191
diff
changeset
|
449 >>> print _globre(r'a/**/b') |
a4b67bf1f0a5
match: make glob '**/' match the empty string
Siddharth Agarwal <sid0@fb.com>
parents:
21191
diff
changeset
|
450 a\/(?:.*/)?b |
21112
03782d2fc776
match: _globre doctests
Mads Kiilerich <madski@unity3d.com>
parents:
21111
diff
changeset
|
451 >>> print _globre(r'[a*?!^][^b][!c]') |
03782d2fc776
match: _globre doctests
Mads Kiilerich <madski@unity3d.com>
parents:
21111
diff
changeset
|
452 [a*?!^][\^b][^c] |
03782d2fc776
match: _globre doctests
Mads Kiilerich <madski@unity3d.com>
parents:
21111
diff
changeset
|
453 >>> print _globre(r'{a,b}') |
03782d2fc776
match: _globre doctests
Mads Kiilerich <madski@unity3d.com>
parents:
21111
diff
changeset
|
454 (?:a|b) |
03782d2fc776
match: _globre doctests
Mads Kiilerich <madski@unity3d.com>
parents:
21111
diff
changeset
|
455 >>> print _globre(r'.\*\?') |
03782d2fc776
match: _globre doctests
Mads Kiilerich <madski@unity3d.com>
parents:
21111
diff
changeset
|
456 \.\*\? |
03782d2fc776
match: _globre doctests
Mads Kiilerich <madski@unity3d.com>
parents:
21111
diff
changeset
|
457 ''' |
8570
7fe2012b3bd0
match: move util match functions over
Matt Mackall <mpm@selenic.com>
parents:
8568
diff
changeset
|
458 i, n = 0, len(pat) |
7fe2012b3bd0
match: move util match functions over
Matt Mackall <mpm@selenic.com>
parents:
8568
diff
changeset
|
459 res = '' |
7fe2012b3bd0
match: move util match functions over
Matt Mackall <mpm@selenic.com>
parents:
8568
diff
changeset
|
460 group = 0 |
21915
d516b6de3821
match: use util.re.escape instead of re.escape
Siddharth Agarwal <sid0@fb.com>
parents:
21909
diff
changeset
|
461 escape = util.re.escape |
10282
08a0f04b56bd
many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents:
10263
diff
changeset
|
462 def peek(): |
08a0f04b56bd
many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents:
10263
diff
changeset
|
463 return i < n and pat[i] |
8570
7fe2012b3bd0
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parents:
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diff
changeset
|
464 while i < n: |
7fe2012b3bd0
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diff
changeset
|
465 c = pat[i] |
10282
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many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents:
10263
diff
changeset
|
466 i += 1 |
8583
19d1b2aec562
match: optimize escaping in _globre
Matt Mackall <mpm@selenic.com>
parents:
8582
diff
changeset
|
467 if c not in '*?[{},\\': |
19d1b2aec562
match: optimize escaping in _globre
Matt Mackall <mpm@selenic.com>
parents:
8582
diff
changeset
|
468 res += escape(c) |
19d1b2aec562
match: optimize escaping in _globre
Matt Mackall <mpm@selenic.com>
parents:
8582
diff
changeset
|
469 elif c == '*': |
8570
7fe2012b3bd0
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Matt Mackall <mpm@selenic.com>
parents:
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diff
changeset
|
470 if peek() == '*': |
7fe2012b3bd0
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Matt Mackall <mpm@selenic.com>
parents:
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diff
changeset
|
471 i += 1 |
21815
a4b67bf1f0a5
match: make glob '**/' match the empty string
Siddharth Agarwal <sid0@fb.com>
parents:
21191
diff
changeset
|
472 if peek() == '/': |
a4b67bf1f0a5
match: make glob '**/' match the empty string
Siddharth Agarwal <sid0@fb.com>
parents:
21191
diff
changeset
|
473 i += 1 |
a4b67bf1f0a5
match: make glob '**/' match the empty string
Siddharth Agarwal <sid0@fb.com>
parents:
21191
diff
changeset
|
474 res += '(?:.*/)?' |
a4b67bf1f0a5
match: make glob '**/' match the empty string
Siddharth Agarwal <sid0@fb.com>
parents:
21191
diff
changeset
|
475 else: |
a4b67bf1f0a5
match: make glob '**/' match the empty string
Siddharth Agarwal <sid0@fb.com>
parents:
21191
diff
changeset
|
476 res += '.*' |
8570
7fe2012b3bd0
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Matt Mackall <mpm@selenic.com>
parents:
8568
diff
changeset
|
477 else: |
7fe2012b3bd0
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Matt Mackall <mpm@selenic.com>
parents:
8568
diff
changeset
|
478 res += '[^/]*' |
7fe2012b3bd0
match: move util match functions over
Matt Mackall <mpm@selenic.com>
parents:
8568
diff
changeset
|
479 elif c == '?': |
7fe2012b3bd0
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Matt Mackall <mpm@selenic.com>
parents:
8568
diff
changeset
|
480 res += '.' |
7fe2012b3bd0
match: move util match functions over
Matt Mackall <mpm@selenic.com>
parents:
8568
diff
changeset
|
481 elif c == '[': |
7fe2012b3bd0
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Matt Mackall <mpm@selenic.com>
parents:
8568
diff
changeset
|
482 j = i |
7fe2012b3bd0
match: move util match functions over
Matt Mackall <mpm@selenic.com>
parents:
8568
diff
changeset
|
483 if j < n and pat[j] in '!]': |
7fe2012b3bd0
match: move util match functions over
Matt Mackall <mpm@selenic.com>
parents:
8568
diff
changeset
|
484 j += 1 |
7fe2012b3bd0
match: move util match functions over
Matt Mackall <mpm@selenic.com>
parents:
8568
diff
changeset
|
485 while j < n and pat[j] != ']': |
7fe2012b3bd0
match: move util match functions over
Matt Mackall <mpm@selenic.com>
parents:
8568
diff
changeset
|
486 j += 1 |
7fe2012b3bd0
match: move util match functions over
Matt Mackall <mpm@selenic.com>
parents:
8568
diff
changeset
|
487 if j >= n: |
7fe2012b3bd0
match: move util match functions over
Matt Mackall <mpm@selenic.com>
parents:
8568
diff
changeset
|
488 res += '\\[' |
7fe2012b3bd0
match: move util match functions over
Matt Mackall <mpm@selenic.com>
parents:
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diff
changeset
|
489 else: |
7fe2012b3bd0
match: move util match functions over
Matt Mackall <mpm@selenic.com>
parents:
8568
diff
changeset
|
490 stuff = pat[i:j].replace('\\','\\\\') |
7fe2012b3bd0
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Matt Mackall <mpm@selenic.com>
parents:
8568
diff
changeset
|
491 i = j + 1 |
7fe2012b3bd0
match: move util match functions over
Matt Mackall <mpm@selenic.com>
parents:
8568
diff
changeset
|
492 if stuff[0] == '!': |
7fe2012b3bd0
match: move util match functions over
Matt Mackall <mpm@selenic.com>
parents:
8568
diff
changeset
|
493 stuff = '^' + stuff[1:] |
7fe2012b3bd0
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Matt Mackall <mpm@selenic.com>
parents:
8568
diff
changeset
|
494 elif stuff[0] == '^': |
7fe2012b3bd0
match: move util match functions over
Matt Mackall <mpm@selenic.com>
parents:
8568
diff
changeset
|
495 stuff = '\\' + stuff |
7fe2012b3bd0
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Matt Mackall <mpm@selenic.com>
parents:
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diff
changeset
|
496 res = '%s[%s]' % (res, stuff) |
7fe2012b3bd0
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parents:
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diff
changeset
|
497 elif c == '{': |
7fe2012b3bd0
match: move util match functions over
Matt Mackall <mpm@selenic.com>
parents:
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diff
changeset
|
498 group += 1 |
7fe2012b3bd0
match: move util match functions over
Matt Mackall <mpm@selenic.com>
parents:
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diff
changeset
|
499 res += '(?:' |
7fe2012b3bd0
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Matt Mackall <mpm@selenic.com>
parents:
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diff
changeset
|
500 elif c == '}' and group: |
7fe2012b3bd0
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Matt Mackall <mpm@selenic.com>
parents:
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diff
changeset
|
501 res += ')' |
7fe2012b3bd0
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Matt Mackall <mpm@selenic.com>
parents:
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diff
changeset
|
502 group -= 1 |
7fe2012b3bd0
match: move util match functions over
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diff
changeset
|
503 elif c == ',' and group: |
7fe2012b3bd0
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Matt Mackall <mpm@selenic.com>
parents:
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diff
changeset
|
504 res += '|' |
7fe2012b3bd0
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Matt Mackall <mpm@selenic.com>
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diff
changeset
|
505 elif c == '\\': |
7fe2012b3bd0
match: move util match functions over
Matt Mackall <mpm@selenic.com>
parents:
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diff
changeset
|
506 p = peek() |
7fe2012b3bd0
match: move util match functions over
Matt Mackall <mpm@selenic.com>
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diff
changeset
|
507 if p: |
7fe2012b3bd0
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Matt Mackall <mpm@selenic.com>
parents:
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diff
changeset
|
508 i += 1 |
8583
19d1b2aec562
match: optimize escaping in _globre
Matt Mackall <mpm@selenic.com>
parents:
8582
diff
changeset
|
509 res += escape(p) |
8570
7fe2012b3bd0
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parents:
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diff
changeset
|
510 else: |
8583
19d1b2aec562
match: optimize escaping in _globre
Matt Mackall <mpm@selenic.com>
parents:
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diff
changeset
|
511 res += escape(c) |
8570
7fe2012b3bd0
match: move util match functions over
Matt Mackall <mpm@selenic.com>
parents:
8568
diff
changeset
|
512 else: |
8583
19d1b2aec562
match: optimize escaping in _globre
Matt Mackall <mpm@selenic.com>
parents:
8582
diff
changeset
|
513 res += escape(c) |
8582
a4c199e12b5a
match: remove head and tail args from _globre
Matt Mackall <mpm@selenic.com>
parents:
8581
diff
changeset
|
514 return res |
8570
7fe2012b3bd0
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Matt Mackall <mpm@selenic.com>
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8568
diff
changeset
|
515 |
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diff
changeset
|
516 def _regex(kind, pat, globsuffix): |
9d28fd795215
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diff
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|
517 '''Convert a (normalized) pattern of any kind into a regular expression. |
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changeset
|
518 globsuffix is appended to the regexp of globs.''' |
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parents:
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diff
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|
519 if not pat: |
8574
63a7ed2128d5
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Matt Mackall <mpm@selenic.com>
parents:
8573
diff
changeset
|
520 return '' |
63a7ed2128d5
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Matt Mackall <mpm@selenic.com>
parents:
8573
diff
changeset
|
521 if kind == 're': |
21111
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parents:
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diff
changeset
|
522 return pat |
9d28fd795215
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Mads Kiilerich <madski@unity3d.com>
parents:
21079
diff
changeset
|
523 if kind == 'path': |
25636
bfe9ed85f27c
match: let 'path:.' and 'path:' match everything (issue4687)
Matt Harbison <matt_harbison@yahoo.com>
parents:
25194
diff
changeset
|
524 if pat == '.': |
bfe9ed85f27c
match: let 'path:.' and 'path:' match everything (issue4687)
Matt Harbison <matt_harbison@yahoo.com>
parents:
25194
diff
changeset
|
525 return '' |
21915
d516b6de3821
match: use util.re.escape instead of re.escape
Siddharth Agarwal <sid0@fb.com>
parents:
21909
diff
changeset
|
526 return '^' + util.re.escape(pat) + '(?:/|$)' |
21111
9d28fd795215
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Mads Kiilerich <madski@unity3d.com>
parents:
21079
diff
changeset
|
527 if kind == 'relglob': |
9d28fd795215
match: improve documentation - docstrings and more descriptive variable naming
Mads Kiilerich <madski@unity3d.com>
parents:
21079
diff
changeset
|
528 return '(?:|.*/)' + _globre(pat) + globsuffix |
9d28fd795215
match: improve documentation - docstrings and more descriptive variable naming
Mads Kiilerich <madski@unity3d.com>
parents:
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diff
changeset
|
529 if kind == 'relpath': |
21915
d516b6de3821
match: use util.re.escape instead of re.escape
Siddharth Agarwal <sid0@fb.com>
parents:
21909
diff
changeset
|
530 return util.re.escape(pat) + '(?:/|$)' |
21111
9d28fd795215
match: improve documentation - docstrings and more descriptive variable naming
Mads Kiilerich <madski@unity3d.com>
parents:
21079
diff
changeset
|
531 if kind == 'relre': |
9d28fd795215
match: improve documentation - docstrings and more descriptive variable naming
Mads Kiilerich <madski@unity3d.com>
parents:
21079
diff
changeset
|
532 if pat.startswith('^'): |
9d28fd795215
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Mads Kiilerich <madski@unity3d.com>
parents:
21079
diff
changeset
|
533 return pat |
9d28fd795215
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Mads Kiilerich <madski@unity3d.com>
parents:
21079
diff
changeset
|
534 return '.*' + pat |
9d28fd795215
match: improve documentation - docstrings and more descriptive variable naming
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parents:
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diff
changeset
|
535 return _globre(pat) + globsuffix |
8574
63a7ed2128d5
match: unnest functions in _matcher
Matt Mackall <mpm@selenic.com>
parents:
8573
diff
changeset
|
536 |
25238
5a55ad6e8e24
match: add root to _buildmatch
Durham Goode <durham@fb.com>
parents:
25233
diff
changeset
|
537 def _buildmatch(ctx, kindpats, globsuffix, listsubrepos, root): |
21111
9d28fd795215
match: improve documentation - docstrings and more descriptive variable naming
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parents:
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diff
changeset
|
538 '''Return regexp string and a matcher function for kindpats. |
9d28fd795215
match: improve documentation - docstrings and more descriptive variable naming
Mads Kiilerich <madski@unity3d.com>
parents:
21079
diff
changeset
|
539 globsuffix is appended to the regexp of globs.''' |
25239
714f612f2afc
match: allow unioning arbitrary match functions
Durham Goode <durham@fb.com>
parents:
25238
diff
changeset
|
540 matchfuncs = [] |
714f612f2afc
match: allow unioning arbitrary match functions
Durham Goode <durham@fb.com>
parents:
25238
diff
changeset
|
541 |
25283
19d0e5efa6ca
match: enable 'subinclude:' syntax
Durham Goode <durham@fb.com>
parents:
25250
diff
changeset
|
542 subincludes, kindpats = _expandsubinclude(kindpats, root) |
19d0e5efa6ca
match: enable 'subinclude:' syntax
Durham Goode <durham@fb.com>
parents:
25250
diff
changeset
|
543 if subincludes: |
19d0e5efa6ca
match: enable 'subinclude:' syntax
Durham Goode <durham@fb.com>
parents:
25250
diff
changeset
|
544 def matchsubinclude(f): |
19d0e5efa6ca
match: enable 'subinclude:' syntax
Durham Goode <durham@fb.com>
parents:
25250
diff
changeset
|
545 for prefix, mf in subincludes: |
19d0e5efa6ca
match: enable 'subinclude:' syntax
Durham Goode <durham@fb.com>
parents:
25250
diff
changeset
|
546 if f.startswith(prefix) and mf(f[len(prefix):]): |
19d0e5efa6ca
match: enable 'subinclude:' syntax
Durham Goode <durham@fb.com>
parents:
25250
diff
changeset
|
547 return True |
19d0e5efa6ca
match: enable 'subinclude:' syntax
Durham Goode <durham@fb.com>
parents:
25250
diff
changeset
|
548 return False |
19d0e5efa6ca
match: enable 'subinclude:' syntax
Durham Goode <durham@fb.com>
parents:
25250
diff
changeset
|
549 matchfuncs.append(matchsubinclude) |
14675
cfc89398f710
match: introduce basic fileset support
Matt Mackall <mpm@selenic.com>
parents:
14674
diff
changeset
|
550 |
25122
755d23a49170
match: resolve filesets in subrepos for commands given the '-S' argument
Matt Harbison <matt_harbison@yahoo.com>
parents:
25114
diff
changeset
|
551 fset, kindpats = _expandsets(kindpats, ctx, listsubrepos) |
14675
cfc89398f710
match: introduce basic fileset support
Matt Mackall <mpm@selenic.com>
parents:
14674
diff
changeset
|
552 if fset: |
25239
714f612f2afc
match: allow unioning arbitrary match functions
Durham Goode <durham@fb.com>
parents:
25238
diff
changeset
|
553 matchfuncs.append(fset.__contains__) |
14675
cfc89398f710
match: introduce basic fileset support
Matt Mackall <mpm@selenic.com>
parents:
14674
diff
changeset
|
554 |
25239
714f612f2afc
match: allow unioning arbitrary match functions
Durham Goode <durham@fb.com>
parents:
25238
diff
changeset
|
555 regex = '' |
714f612f2afc
match: allow unioning arbitrary match functions
Durham Goode <durham@fb.com>
parents:
25238
diff
changeset
|
556 if kindpats: |
714f612f2afc
match: allow unioning arbitrary match functions
Durham Goode <durham@fb.com>
parents:
25238
diff
changeset
|
557 regex, mf = _buildregexmatch(kindpats, globsuffix) |
714f612f2afc
match: allow unioning arbitrary match functions
Durham Goode <durham@fb.com>
parents:
25238
diff
changeset
|
558 matchfuncs.append(mf) |
714f612f2afc
match: allow unioning arbitrary match functions
Durham Goode <durham@fb.com>
parents:
25238
diff
changeset
|
559 |
714f612f2afc
match: allow unioning arbitrary match functions
Durham Goode <durham@fb.com>
parents:
25238
diff
changeset
|
560 if len(matchfuncs) == 1: |
714f612f2afc
match: allow unioning arbitrary match functions
Durham Goode <durham@fb.com>
parents:
25238
diff
changeset
|
561 return regex, matchfuncs[0] |
714f612f2afc
match: allow unioning arbitrary match functions
Durham Goode <durham@fb.com>
parents:
25238
diff
changeset
|
562 else: |
714f612f2afc
match: allow unioning arbitrary match functions
Durham Goode <durham@fb.com>
parents:
25238
diff
changeset
|
563 return regex, lambda f: any(mf(f) for mf in matchfuncs) |
14675
cfc89398f710
match: introduce basic fileset support
Matt Mackall <mpm@selenic.com>
parents:
14674
diff
changeset
|
564 |
21111
9d28fd795215
match: improve documentation - docstrings and more descriptive variable naming
Mads Kiilerich <madski@unity3d.com>
parents:
21079
diff
changeset
|
565 def _buildregexmatch(kindpats, globsuffix): |
9d28fd795215
match: improve documentation - docstrings and more descriptive variable naming
Mads Kiilerich <madski@unity3d.com>
parents:
21079
diff
changeset
|
566 """Build a match function from a list of kinds and kindpats, |
9d28fd795215
match: improve documentation - docstrings and more descriptive variable naming
Mads Kiilerich <madski@unity3d.com>
parents:
21079
diff
changeset
|
567 return regexp string and a matcher function.""" |
8574
63a7ed2128d5
match: unnest functions in _matcher
Matt Mackall <mpm@selenic.com>
parents:
8573
diff
changeset
|
568 try: |
21111
9d28fd795215
match: improve documentation - docstrings and more descriptive variable naming
Mads Kiilerich <madski@unity3d.com>
parents:
21079
diff
changeset
|
569 regex = '(?:%s)' % '|'.join([_regex(k, p, globsuffix) |
25213
08a8e9da0ae7
match: add source to kindpats list
Durham Goode <durham@fb.com>
parents:
25195
diff
changeset
|
570 for (k, p, s) in kindpats]) |
21111
9d28fd795215
match: improve documentation - docstrings and more descriptive variable naming
Mads Kiilerich <madski@unity3d.com>
parents:
21079
diff
changeset
|
571 if len(regex) > 20000: |
16687
e34106fa0dc3
cleanup: "raise SomeException()" -> "raise SomeException"
Brodie Rao <brodie@sf.io>
parents:
16645
diff
changeset
|
572 raise OverflowError |
21111
9d28fd795215
match: improve documentation - docstrings and more descriptive variable naming
Mads Kiilerich <madski@unity3d.com>
parents:
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diff
changeset
|
573 return regex, _rematcher(regex) |
8574
63a7ed2128d5
match: unnest functions in _matcher
Matt Mackall <mpm@selenic.com>
parents:
8573
diff
changeset
|
574 except OverflowError: |
63a7ed2128d5
match: unnest functions in _matcher
Matt Mackall <mpm@selenic.com>
parents:
8573
diff
changeset
|
575 # We're using a Python with a tiny regex engine and we |
63a7ed2128d5
match: unnest functions in _matcher
Matt Mackall <mpm@selenic.com>
parents:
8573
diff
changeset
|
576 # made it explode, so we'll divide the pattern list in two |
63a7ed2128d5
match: unnest functions in _matcher
Matt Mackall <mpm@selenic.com>
parents:
8573
diff
changeset
|
577 # until it works |
21111
9d28fd795215
match: improve documentation - docstrings and more descriptive variable naming
Mads Kiilerich <madski@unity3d.com>
parents:
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diff
changeset
|
578 l = len(kindpats) |
8574
63a7ed2128d5
match: unnest functions in _matcher
Matt Mackall <mpm@selenic.com>
parents:
8573
diff
changeset
|
579 if l < 2: |
63a7ed2128d5
match: unnest functions in _matcher
Matt Mackall <mpm@selenic.com>
parents:
8573
diff
changeset
|
580 raise |
21111
9d28fd795215
match: improve documentation - docstrings and more descriptive variable naming
Mads Kiilerich <madski@unity3d.com>
parents:
21079
diff
changeset
|
581 regexa, a = _buildregexmatch(kindpats[:l//2], globsuffix) |
9d28fd795215
match: improve documentation - docstrings and more descriptive variable naming
Mads Kiilerich <madski@unity3d.com>
parents:
21079
diff
changeset
|
582 regexb, b = _buildregexmatch(kindpats[l//2:], globsuffix) |
21191
a2f4ea82d6d3
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583 return regex, lambda s: a(s) or b(s) |
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584 except re.error: |
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585 for k, p, s in kindpats: |
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586 try: |
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587 _rematcher('(?:%s)' % _regex(k, p, globsuffix)) |
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588 except re.error: |
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589 if s: |
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590 raise util.Abort(_("%s: invalid pattern (%s): %s") % |
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591 (s, k, p)) |
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592 else: |
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593 raise util.Abort(_("invalid pattern (%s): %s") % (k, p)) |
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594 raise util.Abort(_("invalid pattern")) |
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595 |
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596 def _roots(kindpats): |
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597 '''return roots and exact explicitly listed files from patterns |
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598 |
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599 >>> _roots([('glob', 'g/*', ''), ('glob', 'g', ''), ('glob', 'g*', '')]) |
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600 ['g', 'g', '.'] |
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601 >>> _roots([('relpath', 'r', ''), ('path', 'p/p', ''), ('path', '', '')]) |
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602 ['r', 'p/p', '.'] |
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603 >>> _roots([('relglob', 'rg*', ''), ('re', 're/', ''), ('relre', 'rr', '')]) |
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604 ['.', '.', '.'] |
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605 ''' |
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606 r = [] |
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607 for kind, pat, source in kindpats: |
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608 if kind == 'glob': # find the non-glob prefix |
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609 root = [] |
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610 for p in pat.split('/'): |
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611 if '[' in p or '{' in p or '*' in p or '?' in p: |
0f06e72abfdc
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612 break |
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|
613 root.append(p) |
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614 r.append('/'.join(root) or '.') |
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615 elif kind in ('relpath', 'path'): |
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616 r.append(pat or '.') |
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match: fix root calculation for combining regexps with simple paths
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617 else: # relglob, re, relre |
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618 r.append('.') |
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|
619 return r |
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620 |
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621 def _anypats(kindpats): |
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622 for kind, pat, source in kindpats: |
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match: consider filesets as "anypats"
Patrick Mezard <patrick@mezard.eu>
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623 if kind in ('glob', 're', 'relglob', 'relre', 'set'): |
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624 return True |
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625 |
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626 _commentre = None |
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627 |
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628 def readpatternfile(filepath, warn): |
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629 '''parse a pattern file, returning a list of |
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630 patterns. These patterns should be given to compile() |
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631 to be validated and converted into a match function. |
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632 |
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633 trailing white space is dropped. |
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634 the escape character is backslash. |
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635 comments start with #. |
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636 empty lines are skipped. |
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637 |
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638 lines can be of the following formats: |
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|
639 |
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640 syntax: regexp # defaults following lines to non-rooted regexps |
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641 syntax: glob # defaults following lines to non-rooted globs |
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642 re:pattern # non-rooted regular expression |
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643 glob:pattern # non-rooted glob |
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644 pattern # pattern of the current default type''' |
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|
645 |
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diff
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646 syntaxes = {'re': 'relre:', 'regexp': 'relre:', 'glob': 'relglob:', |
25283
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647 'include': 'include', 'subinclude': 'subinclude'} |
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648 syntax = 'relre:' |
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649 patterns = [] |
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650 |
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651 fp = open(filepath) |
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652 for line in fp: |
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653 if "#" in line: |
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654 global _commentre |
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655 if not _commentre: |
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656 _commentre = re.compile(r'((^|[^\\])(\\\\)*)#.*') |
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657 # remove comments prefixed by an even number of escapes |
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658 line = _commentre.sub(r'\1', line) |
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659 # fixup properly escaped comments that survived the above |
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660 line = line.replace("\\#", "#") |
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661 line = line.rstrip() |
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662 if not line: |
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663 continue |
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664 |
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665 if line.startswith('syntax:'): |
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666 s = line[7:].strip() |
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667 try: |
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668 syntax = syntaxes[s] |
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669 except KeyError: |
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670 if warn: |
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671 warn(_("%s: ignoring invalid syntax '%s'\n") % |
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672 (filepath, s)) |
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673 continue |
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674 |
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675 linesyntax = syntax |
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676 for s, rels in syntaxes.iteritems(): |
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677 if line.startswith(rels): |
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678 linesyntax = rels |
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679 line = line[len(rels):] |
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680 break |
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681 elif line.startswith(s+':'): |
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682 linesyntax = rels |
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683 line = line[len(s) + 1:] |
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684 break |
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685 patterns.append(linesyntax + line) |
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686 fp.close() |
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687 return patterns |