Mercurial > hg-git
annotate hggit/gitdirstate.py @ 910:83c847b0b3ab
gitdirstate: eliminate naked except clause in compatibility code
Tested with Mercurial 2.8.2, 2.9.2, bd98d073a34f (stable) and
7d24a41200d3 (default).
author | Yuya Nishihara <yuya@tcha.org> |
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date | Sun, 31 May 2015 13:54:15 +0900 |
parents | 67b27ec080ae |
children | 06385a2b30f3 5db7e2be619e |
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893 | 1 import os |
2 import stat | |
3 import re | |
4 import errno | |
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5 |
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6 from mercurial import dirstate |
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7 try: |
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8 from mercurial import ignore |
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9 ignore.readpats |
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10 ignoremod = True |
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11 except ImportError: |
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12 # ignore module was removed in Mercurial 3.5 |
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13 ignoremod = False |
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14 from mercurial import match as matchmod |
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15 from mercurial import osutil |
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16 from mercurial import scmutil |
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17 # pathauditor moved to pathutil in 2.8 |
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18 try: |
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19 from mercurial import pathutil |
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20 pathutil.pathauditor |
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21 except ImportError: |
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22 pathutil = scmutil |
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23 from mercurial import util |
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24 from mercurial.i18n import _ |
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25 |
893 | 26 def gignorepats(orig, lines, root=None): |
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27 '''parse lines (iterable) of .gitignore text, returning a tuple of |
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28 (patterns, parse errors). These patterns should be given to compile() |
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29 to be validated and converted into a match function.''' |
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30 syntaxes = {'re': 'relre:', 'regexp': 'relre:', 'glob': 'relglob:'} |
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31 syntax = 'glob:' |
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32 |
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33 patterns = [] |
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34 warnings = [] |
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35 |
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36 for line in lines: |
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37 if "#" in line: |
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38 _commentre = re.compile(r'((^|[^\\])(\\\\)*)#.*') |
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39 # remove comments prefixed by an even number of escapes |
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40 line = _commentre.sub(r'\1', line) |
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41 # fixup properly escaped comments that survived the above |
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42 line = line.replace("\\#", "#") |
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43 line = line.rstrip() |
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44 if not line: |
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45 continue |
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46 |
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47 if line.startswith('!'): |
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48 warnings.append(_("unsupported ignore pattern '%s'") % line) |
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49 continue |
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50 if re.match(r'(:?.*/)?\.hg(:?/|$)', line): |
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51 continue |
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52 rootprefix = '%s/' % root if root else '' |
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53 if line.startswith('/'): |
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54 line = line[1:] |
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55 rootsuffixes = [''] |
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56 else: |
893 | 57 rootsuffixes = ['', '**/'] |
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58 for rootsuffix in rootsuffixes: |
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59 pat = syntax + rootprefix + rootsuffix + line |
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60 for s, rels in syntaxes.iteritems(): |
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61 if line.startswith(rels): |
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62 pat = line |
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63 break |
893 | 64 elif line.startswith(s + ':'): |
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65 pat = rels + line[len(s) + 1:] |
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66 break |
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67 patterns.append(pat) |
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68 |
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69 return patterns, warnings |
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70 |
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71 def gignore(root, files, warn, extrapatterns=None): |
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72 allpats = [] |
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73 pats = [] |
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74 if ignoremod: |
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75 pats = ignore.readpats(root, files, warn) |
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76 for f, patlist in pats: |
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77 allpats.extend(patlist) |
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78 else: |
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79 allpats.extend(['include:%s' % f for f in files]) |
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80 |
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81 if extrapatterns: |
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82 allpats.extend(extrapatterns) |
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83 if not allpats: |
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84 return util.never |
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85 try: |
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86 ignorefunc = matchmod.match(root, '', [], allpats) |
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87 except util.Abort: |
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88 for f, patlist in pats: |
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89 try: |
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90 matchmod.match(root, '', [], patlist) |
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91 except util.Abort, inst: |
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92 raise util.Abort('%s: %s' % (f, inst[0])) |
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93 if extrapatterns: |
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94 try: |
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95 matchmod.match(root, '', [], extrapatterns) |
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96 except util.Abort, inst: |
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97 raise util.Abort('%s: %s' % ('extra patterns', inst[0])) |
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98 return ignorefunc |
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99 |
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100 class gitdirstate(dirstate.dirstate): |
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101 @dirstate.rootcache('.hgignore') |
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102 def _ignore(self): |
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103 files = [self._join('.hgignore')] |
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104 for name, path in self._ui.configitems("ui"): |
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105 if name == 'ignore' or name.startswith('ignore.'): |
893 | 106 files.append(util.expandpath(path)) |
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107 patterns = [] |
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108 # Only use .gitignore if there's no .hgignore |
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109 try: |
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110 fp = open(files[0]) |
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111 fp.close() |
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112 except: |
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113 fns = self._finddotgitignores() |
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114 for fn in fns: |
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115 d = os.path.dirname(fn) |
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116 fn = self.pathto(fn) |
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117 if not os.path.exists(fn): |
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118 continue |
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119 fp = open(fn) |
893 | 120 pats, warnings = gignorepats(None, fp, root=d) |
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121 for warning in warnings: |
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122 self._ui.warn("%s: %s\n" % (fn, warning)) |
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123 patterns.extend(pats) |
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124 return gignore(self._root, files, self._ui.warn, |
893 | 125 extrapatterns=patterns) |
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126 |
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127 def _finddotgitignores(self): |
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128 """A copy of dirstate.walk. This is called from the new _ignore method, |
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129 which is called by dirstate.walk, which would cause infinite recursion, |
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130 except _finddotgitignores calls the superclass _ignore directly.""" |
893 | 131 match = matchmod.match(self._root, self.getcwd(), |
132 ['relglob:.gitignore']) | |
133 # TODO: need subrepos? | |
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134 subrepos = [] |
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135 unknown = True |
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136 ignored = False |
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137 |
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138 def fwarn(f, msg): |
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139 self._ui.warn('%s: %s\n' % (self.pathto(f), msg)) |
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140 return False |
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141 |
893 | 142 ignore = super(gitdirstate, self)._ignore |
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143 dirignore = self._dirignore |
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144 if ignored: |
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145 ignore = util.never |
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146 dirignore = util.never |
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147 elif not unknown: |
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148 # if unknown and ignored are False, skip step 2 |
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149 ignore = util.always |
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150 dirignore = util.always |
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151 |
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152 matchfn = match.matchfn |
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153 matchalways = match.always() |
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154 matchtdir = match.traversedir |
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155 dmap = self._map |
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156 listdir = osutil.listdir |
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157 lstat = os.lstat |
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158 dirkind = stat.S_IFDIR |
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159 regkind = stat.S_IFREG |
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160 lnkkind = stat.S_IFLNK |
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161 join = self._join |
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162 |
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163 exact = skipstep3 = False |
893 | 164 if matchfn == match.exact: # match.exact |
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165 exact = True |
893 | 166 dirignore = util.always # skip step 2 |
167 elif match.files() and not match.anypats(): # match.match, no patterns | |
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168 skipstep3 = True |
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169 |
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170 if not exact and self._checkcase: |
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171 normalize = self._normalize |
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172 skipstep3 = False |
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173 else: |
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174 normalize = None |
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175 |
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176 # step 1: find all explicit files |
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177 results, work, dirsnotfound = self._walkexplicit(match, subrepos) |
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178 |
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179 skipstep3 = skipstep3 and not (work or dirsnotfound) |
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180 if work and isinstance(work[0], tuple): |
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181 # Mercurial >= 3.3.3 |
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182 work = [nd for nd, d in work if not dirignore(d)] |
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183 else: |
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184 work = [d for d in work if not dirignore(d)] |
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185 wadd = work.append |
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186 |
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187 # step 2: visit subdirectories |
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188 while work: |
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189 nd = work.pop() |
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190 skip = None |
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191 if nd == '.': |
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192 nd = '' |
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193 else: |
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194 skip = '.hg' |
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195 try: |
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196 entries = listdir(join(nd), stat=True, skip=skip) |
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197 except OSError, inst: |
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198 if inst.errno in (errno.EACCES, errno.ENOENT): |
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199 fwarn(nd, inst.strerror) |
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200 continue |
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201 raise |
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202 for f, kind, st in entries: |
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203 if normalize: |
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204 nf = normalize(nd and (nd + "/" + f) or f, True, True) |
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205 else: |
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206 nf = nd and (nd + "/" + f) or f |
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207 if nf not in results: |
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208 if kind == dirkind: |
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209 if not ignore(nf): |
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210 if matchtdir: |
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211 matchtdir(nf) |
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212 wadd(nf) |
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213 if nf in dmap and (matchalways or matchfn(nf)): |
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214 results[nf] = None |
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215 elif kind == regkind or kind == lnkkind: |
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216 if nf in dmap: |
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217 if matchalways or matchfn(nf): |
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218 results[nf] = st |
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219 elif (matchalways or matchfn(nf)) and not ignore(nf): |
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220 results[nf] = st |
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221 elif nf in dmap and (matchalways or matchfn(nf)): |
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222 results[nf] = None |
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223 |
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224 for s in subrepos: |
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225 del results[s] |
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226 del results['.hg'] |
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227 |
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228 # step 3: report unseen items in the dmap hash |
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229 if not skipstep3 and not exact: |
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230 if not results and matchalways: |
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231 visit = dmap.keys() |
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232 else: |
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233 visit = [f for f in dmap if f not in results and matchfn(f)] |
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234 visit.sort() |
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235 |
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236 if unknown: |
893 | 237 # unknown == True means we walked the full directory tree |
238 # above. So if a file is not seen it was either a) not matching | |
239 # matchfn b) ignored, c) missing, or d) under a symlink | |
240 # directory. | |
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241 audit_path = pathutil.pathauditor(self._root) |
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242 |
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243 for nf in iter(visit): |
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244 # Report ignored items in the dmap as long as they are not |
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245 # under a symlink directory. |
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246 if audit_path.check(nf): |
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247 try: |
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248 results[nf] = lstat(join(nf)) |
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249 except OSError: |
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250 # file doesn't exist |
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251 results[nf] = None |
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252 else: |
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253 # It's either missing or under a symlink directory |
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254 results[nf] = None |
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255 else: |
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256 # We may not have walked the full directory tree above, |
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257 # so stat everything we missed. |
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258 nf = iter(visit).next |
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259 for st in util.statfiles([join(i) for i in visit]): |
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260 results[nf()] = st |
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261 return results.keys() |