Mercurial > hg
annotate mercurial/scmutil.py @ 18124:79db6d40bced
branchmap: store branchcache in a dedicated object
Value and key of branchcache would benefit from being hold by the same object.
Moreover some logic (update, write, validation) could be move on such object.
The creation of this object is the first step toward this move. The result will
clarify branchcache related code and hide most of the detail in the class
itself. This encapsulation will greatly helps implementation of branchcache for
filtered view of the repo.
author | Pierre-Yves David <pierre-yves.david@logilab.fr> |
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date | Sat, 22 Dec 2012 01:44:42 +0100 |
parents | c95210b82c0e |
children | 203b7a759218 |
rev | line source |
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1 # scmutil.py - Mercurial core utility functions |
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2 # |
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3 # Copyright Matt Mackall <mpm@selenic.com> |
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4 # |
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5 # This software may be used and distributed according to the terms of the |
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6 # GNU General Public License version 2 or any later version. |
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7 |
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8 from i18n import _ |
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9 import util, error, osutil, revset, similar, encoding, phases |
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11 import os, errno, re, stat, sys, glob |
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12 |
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13 def nochangesfound(ui, repo, excluded=None): |
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14 '''Report no changes for push/pull, excluded is None or a list of |
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15 nodes excluded from the push/pull. |
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16 ''' |
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17 secretlist = [] |
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18 if excluded: |
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19 for n in excluded: |
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20 ctx = repo[n] |
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21 if ctx.phase() >= phases.secret and not ctx.extinct(): |
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22 secretlist.append(n) |
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23 |
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24 if secretlist: |
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25 ui.status(_("no changes found (ignored %d secret changesets)\n") |
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26 % len(secretlist)) |
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27 else: |
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28 ui.status(_("no changes found\n")) |
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29 |
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30 def checknewlabel(repo, lbl, kind): |
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31 if lbl in ['tip', '.', 'null']: |
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32 raise util.Abort(_("the name '%s' is reserved") % lbl) |
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33 for c in (':', '\0', '\n', '\r'): |
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34 if c in lbl: |
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35 raise util.Abort(_("%r cannot be used in a name") % c) |
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36 |
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37 def checkfilename(f): |
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38 '''Check that the filename f is an acceptable filename for a tracked file''' |
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39 if '\r' in f or '\n' in f: |
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40 raise util.Abort(_("'\\n' and '\\r' disallowed in filenames: %r") % f) |
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41 |
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42 def checkportable(ui, f): |
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43 '''Check if filename f is portable and warn or abort depending on config''' |
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44 checkfilename(f) |
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45 abort, warn = checkportabilityalert(ui) |
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46 if abort or warn: |
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47 msg = util.checkwinfilename(f) |
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48 if msg: |
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49 msg = "%s: %r" % (msg, f) |
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50 if abort: |
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51 raise util.Abort(msg) |
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52 ui.warn(_("warning: %s\n") % msg) |
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53 |
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54 def checkportabilityalert(ui): |
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55 '''check if the user's config requests nothing, a warning, or abort for |
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56 non-portable filenames''' |
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57 val = ui.config('ui', 'portablefilenames', 'warn') |
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58 lval = val.lower() |
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59 bval = util.parsebool(val) |
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60 abort = os.name == 'nt' or lval == 'abort' |
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61 warn = bval or lval == 'warn' |
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62 if bval is None and not (warn or abort or lval == 'ignore'): |
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63 raise error.ConfigError( |
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64 _("ui.portablefilenames value is invalid ('%s')") % val) |
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65 return abort, warn |
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66 |
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67 class casecollisionauditor(object): |
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68 def __init__(self, ui, abort, dirstate): |
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69 self._ui = ui |
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70 self._abort = abort |
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71 allfiles = '\0'.join(dirstate._map) |
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72 self._loweredfiles = set(encoding.lower(allfiles).split('\0')) |
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73 self._dirstate = dirstate |
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74 # The purpose of _newfiles is so that we don't complain about |
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75 # case collisions if someone were to call this object with the |
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76 # same filename twice. |
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77 self._newfiles = set() |
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78 |
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79 def __call__(self, f): |
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80 fl = encoding.lower(f) |
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81 if (fl in self._loweredfiles and f not in self._dirstate and |
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82 f not in self._newfiles): |
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83 msg = _('possible case-folding collision for %s') % f |
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84 if self._abort: |
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85 raise util.Abort(msg) |
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86 self._ui.warn(_("warning: %s\n") % msg) |
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87 self._loweredfiles.add(fl) |
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88 self._newfiles.add(f) |
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89 |
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90 class pathauditor(object): |
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91 '''ensure that a filesystem path contains no banned components. |
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92 the following properties of a path are checked: |
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93 |
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94 - ends with a directory separator |
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95 - under top-level .hg |
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96 - starts at the root of a windows drive |
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97 - contains ".." |
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98 - traverses a symlink (e.g. a/symlink_here/b) |
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99 - inside a nested repository (a callback can be used to approve |
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100 some nested repositories, e.g., subrepositories) |
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101 ''' |
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102 |
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103 def __init__(self, root, callback=None): |
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104 self.audited = set() |
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105 self.auditeddir = set() |
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106 self.root = root |
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107 self.callback = callback |
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108 if os.path.lexists(root) and not util.checkcase(root): |
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109 self.normcase = util.normcase |
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110 else: |
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111 self.normcase = lambda x: x |
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112 |
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113 def __call__(self, path): |
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114 '''Check the relative path. |
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115 path may contain a pattern (e.g. foodir/**.txt)''' |
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116 |
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117 path = util.localpath(path) |
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118 normpath = self.normcase(path) |
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119 if normpath in self.audited: |
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120 return |
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121 # AIX ignores "/" at end of path, others raise EISDIR. |
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122 if util.endswithsep(path): |
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123 raise util.Abort(_("path ends in directory separator: %s") % path) |
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124 parts = util.splitpath(path) |
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125 if (os.path.splitdrive(path)[0] |
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126 or parts[0].lower() in ('.hg', '.hg.', '') |
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127 or os.pardir in parts): |
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128 raise util.Abort(_("path contains illegal component: %s") % path) |
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129 if '.hg' in path.lower(): |
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130 lparts = [p.lower() for p in parts] |
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131 for p in '.hg', '.hg.': |
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132 if p in lparts[1:]: |
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133 pos = lparts.index(p) |
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134 base = os.path.join(*parts[:pos]) |
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135 raise util.Abort(_("path '%s' is inside nested repo %r") |
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136 % (path, base)) |
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137 |
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138 normparts = util.splitpath(normpath) |
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139 assert len(parts) == len(normparts) |
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140 |
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141 parts.pop() |
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142 normparts.pop() |
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143 prefixes = [] |
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144 while parts: |
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145 prefix = os.sep.join(parts) |
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146 normprefix = os.sep.join(normparts) |
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147 if normprefix in self.auditeddir: |
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148 break |
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149 curpath = os.path.join(self.root, prefix) |
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150 try: |
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151 st = os.lstat(curpath) |
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152 except OSError, err: |
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153 # EINVAL can be raised as invalid path syntax under win32. |
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154 # They must be ignored for patterns can be checked too. |
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155 if err.errno not in (errno.ENOENT, errno.ENOTDIR, errno.EINVAL): |
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156 raise |
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157 else: |
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158 if stat.S_ISLNK(st.st_mode): |
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159 raise util.Abort( |
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160 _('path %r traverses symbolic link %r') |
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161 % (path, prefix)) |
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162 elif (stat.S_ISDIR(st.st_mode) and |
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163 os.path.isdir(os.path.join(curpath, '.hg'))): |
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164 if not self.callback or not self.callback(curpath): |
16683 | 165 raise util.Abort(_("path '%s' is inside nested " |
166 "repo %r") | |
167 % (path, prefix)) | |
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168 prefixes.append(normprefix) |
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169 parts.pop() |
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170 normparts.pop() |
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171 |
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172 self.audited.add(normpath) |
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173 # only add prefixes to the cache after checking everything: we don't |
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174 # want to add "foo/bar/baz" before checking if there's a "foo/.hg" |
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175 self.auditeddir.update(prefixes) |
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176 |
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177 class abstractvfs(object): |
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178 """Abstract base class; cannot be instantiated""" |
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179 |
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180 def __init__(self, *args, **kwargs): |
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181 '''Prevent instantiation; don't call this from subclasses.''' |
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182 raise NotImplementedError('attempted instantiating ' + str(type(self))) |
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183 |
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184 def tryread(self, path): |
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185 '''gracefully return an empty string for missing files''' |
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186 try: |
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187 return self.read(path) |
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188 except IOError, inst: |
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189 if inst.errno != errno.ENOENT: |
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190 raise |
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191 return "" |
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192 |
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193 def read(self, path): |
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194 fp = self(path, 'rb') |
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195 try: |
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196 return fp.read() |
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197 finally: |
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198 fp.close() |
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199 |
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200 def write(self, path, data): |
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201 fp = self(path, 'wb') |
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202 try: |
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203 return fp.write(data) |
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204 finally: |
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205 fp.close() |
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206 |
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207 def append(self, path, data): |
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208 fp = self(path, 'ab') |
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209 try: |
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210 return fp.write(data) |
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211 finally: |
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212 fp.close() |
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213 |
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214 def exists(self, path=None): |
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215 return os.path.exists(self.join(path)) |
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216 |
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217 def isdir(self, path=None): |
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218 return os.path.isdir(self.join(path)) |
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219 |
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220 def makedir(self, path=None, notindexed=True): |
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221 return util.makedir(self.join(path), notindexed) |
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222 |
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223 def makedirs(self, path=None, mode=None): |
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224 return util.makedirs(self.join(path), mode) |
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225 |
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226 def mkdir(self, path=None): |
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227 return os.mkdir(self.join(path)) |
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228 |
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229 def readdir(self, path=None, stat=None, skip=None): |
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230 return osutil.listdir(self.join(path), stat, skip) |
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231 |
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232 def stat(self, path=None): |
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233 return os.stat(self.join(path)) |
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234 |
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235 class vfs(abstractvfs): |
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236 '''Operate files relative to a base directory |
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237 |
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238 This class is used to hide the details of COW semantics and |
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239 remote file access from higher level code. |
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240 ''' |
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241 def __init__(self, base, audit=True, expand=False): |
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242 if expand: |
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243 base = os.path.realpath(util.expandpath(base)) |
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244 self.base = base |
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245 self._setmustaudit(audit) |
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246 self.createmode = None |
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247 self._trustnlink = None |
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248 |
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249 def _getmustaudit(self): |
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250 return self._audit |
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251 |
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252 def _setmustaudit(self, onoff): |
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253 self._audit = onoff |
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254 if onoff: |
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255 self.auditor = pathauditor(self.base) |
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256 else: |
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257 self.auditor = util.always |
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258 |
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259 mustaudit = property(_getmustaudit, _setmustaudit) |
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260 |
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261 @util.propertycache |
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262 def _cansymlink(self): |
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263 return util.checklink(self.base) |
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264 |
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265 def _fixfilemode(self, name): |
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266 if self.createmode is None: |
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267 return |
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268 os.chmod(name, self.createmode & 0666) |
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269 |
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270 def __call__(self, path, mode="r", text=False, atomictemp=False): |
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271 if self._audit: |
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272 r = util.checkosfilename(path) |
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273 if r: |
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274 raise util.Abort("%s: %r" % (r, path)) |
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275 self.auditor(path) |
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276 f = self.join(path) |
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277 |
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278 if not text and "b" not in mode: |
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279 mode += "b" # for that other OS |
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280 |
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281 nlink = -1 |
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282 if mode not in ('r', 'rb'): |
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283 dirname, basename = util.split(f) |
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284 # If basename is empty, then the path is malformed because it points |
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285 # to a directory. Let the posixfile() call below raise IOError. |
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286 if basename: |
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287 if atomictemp: |
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288 if not os.path.isdir(dirname): |
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289 util.makedirs(dirname, self.createmode) |
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290 return util.atomictempfile(f, mode, self.createmode) |
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291 try: |
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292 if 'w' in mode: |
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293 util.unlink(f) |
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294 nlink = 0 |
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295 else: |
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296 # nlinks() may behave differently for files on Windows |
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297 # shares if the file is open. |
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298 fd = util.posixfile(f) |
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299 nlink = util.nlinks(f) |
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300 if nlink < 1: |
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301 nlink = 2 # force mktempcopy (issue1922) |
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302 fd.close() |
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303 except (OSError, IOError), e: |
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304 if e.errno != errno.ENOENT: |
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305 raise |
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306 nlink = 0 |
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307 if not os.path.isdir(dirname): |
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308 util.makedirs(dirname, self.createmode) |
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309 if nlink > 0: |
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310 if self._trustnlink is None: |
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311 self._trustnlink = nlink > 1 or util.checknlink(f) |
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312 if nlink > 1 or not self._trustnlink: |
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313 util.rename(util.mktempcopy(f), f) |
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314 fp = util.posixfile(f, mode) |
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315 if nlink == 0: |
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316 self._fixfilemode(f) |
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317 return fp |
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318 |
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319 def symlink(self, src, dst): |
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320 self.auditor(dst) |
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321 linkname = self.join(dst) |
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322 try: |
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323 os.unlink(linkname) |
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324 except OSError: |
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325 pass |
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326 |
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327 dirname = os.path.dirname(linkname) |
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328 if not os.path.exists(dirname): |
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329 util.makedirs(dirname, self.createmode) |
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330 |
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331 if self._cansymlink: |
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332 try: |
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333 os.symlink(src, linkname) |
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334 except OSError, err: |
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335 raise OSError(err.errno, _('could not symlink to %r: %s') % |
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336 (src, err.strerror), linkname) |
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337 else: |
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338 self.write(dst, src) |
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339 |
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340 def audit(self, path): |
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341 self.auditor(path) |
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342 |
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343 def join(self, path): |
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344 if path: |
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345 return os.path.join(self.base, path) |
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346 else: |
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347 return self.base |
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348 |
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349 opener = vfs |
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350 |
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351 class auditvfs(object): |
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352 def __init__(self, vfs): |
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353 self.vfs = vfs |
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354 |
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355 def _getmustaudit(self): |
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356 return self.vfs.mustaudit |
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357 |
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358 def _setmustaudit(self, onoff): |
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359 self.vfs.mustaudit = onoff |
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360 |
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361 mustaudit = property(_getmustaudit, _setmustaudit) |
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362 |
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363 class filtervfs(abstractvfs, auditvfs): |
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364 '''Wrapper vfs for filtering filenames with a function.''' |
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365 |
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366 def __init__(self, vfs, filter): |
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367 auditvfs.__init__(self, vfs) |
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368 self._filter = filter |
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369 |
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370 def __call__(self, path, *args, **kwargs): |
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371 return self.vfs(self._filter(path), *args, **kwargs) |
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372 |
17725
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373 def join(self, path): |
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374 if path: |
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375 return self.vfs.join(self._filter(path)) |
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376 else: |
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377 return self.vfs.join(path) |
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378 |
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379 filteropener = filtervfs |
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380 |
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381 def canonpath(root, cwd, myname, auditor=None): |
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382 '''return the canonical path of myname, given cwd and root''' |
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383 if util.endswithsep(root): |
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384 rootsep = root |
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385 else: |
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386 rootsep = root + os.sep |
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387 name = myname |
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388 if not os.path.isabs(name): |
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389 name = os.path.join(root, cwd, name) |
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390 name = os.path.normpath(name) |
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391 if auditor is None: |
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392 auditor = pathauditor(root) |
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393 if name != rootsep and name.startswith(rootsep): |
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394 name = name[len(rootsep):] |
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|
395 auditor(name) |
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396 return util.pconvert(name) |
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397 elif name == root: |
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398 return '' |
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399 else: |
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changeset
|
400 # Determine whether `name' is in the hierarchy at or beneath `root', |
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401 # by iterating name=dirname(name) until that causes no change (can't |
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21e18c608b68
scmutil: change canonpath to use util.samefile (issue2167)
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402 # check name == '/', because that doesn't work on windows). The list |
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|
403 # `rel' holds the reversed list of components making up the relative |
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changeset
|
404 # file name we want. |
13971
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|
405 rel = [] |
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|
406 while True: |
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|
407 try: |
17007
21e18c608b68
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|
408 s = util.samefile(name, root) |
13971
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|
409 except OSError: |
17007
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|
410 s = False |
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|
411 if s: |
13971
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|
412 if not rel: |
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|
413 # name was actually the same as root (maybe a symlink) |
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|
414 return '' |
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diff
changeset
|
415 rel.reverse() |
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changeset
|
416 name = os.path.join(*rel) |
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|
417 auditor(name) |
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|
418 return util.pconvert(name) |
17561
4647aa33ad81
scmutil: use the new faster path split
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17559
diff
changeset
|
419 dirname, basename = util.split(name) |
13971
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|
420 rel.append(basename) |
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|
421 if dirname == name: |
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changeset
|
422 break |
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changeset
|
423 name = dirname |
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changeset
|
424 |
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changeset
|
425 raise util.Abort('%s not under root' % myname) |
13975
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changeset
|
426 |
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diff
changeset
|
427 def walkrepos(path, followsym=False, seen_dirs=None, recurse=False): |
17104
5a9acb0b2086
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diff
changeset
|
428 '''yield every hg repository under path, always recursively. |
5a9acb0b2086
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changeset
|
429 The recurse flag will only control recursion into repo working dirs''' |
13975
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changeset
|
430 def errhandler(err): |
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changeset
|
431 if err.filename == path: |
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changeset
|
432 raise err |
14961
5523529bd1af
walkrepos: use getattr instead of hasattr for samestat
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diff
changeset
|
433 samestat = getattr(os.path, 'samestat', None) |
5523529bd1af
walkrepos: use getattr instead of hasattr for samestat
Augie Fackler <durin42@gmail.com>
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diff
changeset
|
434 if followsym and samestat is not None: |
14227
94985b5a8278
scmutil: rename local function _add_dir_if_not_there
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14226
diff
changeset
|
435 def adddir(dirlst, dirname): |
13975
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|
436 match = False |
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|
437 dirstat = os.stat(dirname) |
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|
438 for lstdirstat in dirlst: |
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439 if samestat(dirstat, lstdirstat): |
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440 match = True |
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changeset
|
441 break |
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changeset
|
442 if not match: |
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changeset
|
443 dirlst.append(dirstat) |
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|
444 return not match |
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|
445 else: |
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|
446 followsym = False |
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|
447 |
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diff
changeset
|
448 if (seen_dirs is None) and followsym: |
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diff
changeset
|
449 seen_dirs = [] |
14227
94985b5a8278
scmutil: rename local function _add_dir_if_not_there
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diff
changeset
|
450 adddir(seen_dirs, path) |
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diff
changeset
|
451 for root, dirs, files in os.walk(path, topdown=True, onerror=errhandler): |
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diff
changeset
|
452 dirs.sort() |
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move walkrepos from util to scmutil
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diff
changeset
|
453 if '.hg' in dirs: |
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diff
changeset
|
454 yield root # found a repository |
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diff
changeset
|
455 qroot = os.path.join(root, '.hg', 'patches') |
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move walkrepos from util to scmutil
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diff
changeset
|
456 if os.path.isdir(os.path.join(qroot, '.hg')): |
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diff
changeset
|
457 yield qroot # we have a patch queue repo here |
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diff
changeset
|
458 if recurse: |
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diff
changeset
|
459 # avoid recursing inside the .hg directory |
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diff
changeset
|
460 dirs.remove('.hg') |
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diff
changeset
|
461 else: |
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diff
changeset
|
462 dirs[:] = [] # don't descend further |
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diff
changeset
|
463 elif followsym: |
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diff
changeset
|
464 newdirs = [] |
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diff
changeset
|
465 for d in dirs: |
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diff
changeset
|
466 fname = os.path.join(root, d) |
14227
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changeset
|
467 if adddir(seen_dirs, fname): |
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diff
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|
468 if os.path.islink(fname): |
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diff
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|
469 for hgname in walkrepos(fname, True, seen_dirs): |
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diff
changeset
|
470 yield hgname |
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parents:
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diff
changeset
|
471 else: |
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changeset
|
472 newdirs.append(d) |
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diff
changeset
|
473 dirs[:] = newdirs |
13984
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diff
changeset
|
474 |
14224
f4189866c76c
rename scmutil.os_rcpath to osrcpath
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diff
changeset
|
475 def osrcpath(): |
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|
476 '''return default os-specific hgrc search path''' |
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diff
changeset
|
477 path = systemrcpath() |
14226
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changeset
|
478 path.extend(userrcpath()) |
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diff
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479 path = [os.path.normpath(f) for f in path] |
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changeset
|
480 return path |
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diff
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|
481 |
13984
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diff
changeset
|
482 _rcpath = None |
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|
483 |
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|
484 def rcpath(): |
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485 '''return hgrc search path. if env var HGRCPATH is set, use it. |
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changeset
|
486 for each item in path, if directory, use files ending in .rc, |
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|
487 else use item. |
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changeset
|
488 make HGRCPATH empty to only look in .hg/hgrc of current repo. |
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diff
changeset
|
489 if no HGRCPATH, use default os-specific path.''' |
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diff
changeset
|
490 global _rcpath |
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diff
changeset
|
491 if _rcpath is None: |
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diff
changeset
|
492 if 'HGRCPATH' in os.environ: |
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|
493 _rcpath = [] |
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|
494 for p in os.environ['HGRCPATH'].split(os.pathsep): |
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changeset
|
495 if not p: |
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diff
changeset
|
496 continue |
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diff
changeset
|
497 p = util.expandpath(p) |
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|
498 if os.path.isdir(p): |
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|
499 for f, kind in osutil.listdir(p): |
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changeset
|
500 if f.endswith('.rc'): |
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|
501 _rcpath.append(os.path.join(p, f)) |
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diff
changeset
|
502 else: |
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changeset
|
503 _rcpath.append(p) |
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diff
changeset
|
504 else: |
14224
f4189866c76c
rename scmutil.os_rcpath to osrcpath
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diff
changeset
|
505 _rcpath = osrcpath() |
13984
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diff
changeset
|
506 return _rcpath |
13986
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diff
changeset
|
507 |
9c374cf76b7d
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diff
changeset
|
508 if os.name != 'nt': |
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diff
changeset
|
509 |
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diff
changeset
|
510 def rcfiles(path): |
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diff
changeset
|
511 rcs = [os.path.join(path, 'hgrc')] |
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diff
changeset
|
512 rcdir = os.path.join(path, 'hgrc.d') |
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diff
changeset
|
513 try: |
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parents:
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diff
changeset
|
514 rcs.extend([os.path.join(rcdir, f) |
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parents:
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diff
changeset
|
515 for f, kind in osutil.listdir(rcdir) |
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diff
changeset
|
516 if f.endswith(".rc")]) |
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diff
changeset
|
517 except OSError: |
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diff
changeset
|
518 pass |
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diff
changeset
|
519 return rcs |
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diff
changeset
|
520 |
14225
f0ca440b5722
rename scmutil.system_rcpath to systemrcpath
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diff
changeset
|
521 def systemrcpath(): |
13986
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diff
changeset
|
522 path = [] |
16383
f5dd179bfa4a
plan9: initial support for plan 9 from bell labs
Steven Stallion <sstallion@gmail.com>
parents:
16379
diff
changeset
|
523 if sys.platform == 'plan9': |
16436
e98460f6089d
scmutil: fix systemrcpath regression introduced in f5dd179bfa4a
Wolfgang Treutterer <Wolfgang.Treutterer@ipp.mpg.de>
parents:
16390
diff
changeset
|
524 root = 'lib/mercurial' |
16383
f5dd179bfa4a
plan9: initial support for plan 9 from bell labs
Steven Stallion <sstallion@gmail.com>
parents:
16379
diff
changeset
|
525 else: |
16436
e98460f6089d
scmutil: fix systemrcpath regression introduced in f5dd179bfa4a
Wolfgang Treutterer <Wolfgang.Treutterer@ipp.mpg.de>
parents:
16390
diff
changeset
|
526 root = 'etc/mercurial' |
13986
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diff
changeset
|
527 # old mod_python does not set sys.argv |
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diff
changeset
|
528 if len(getattr(sys, 'argv', [])) > 0: |
14527
5867bd6e7cf5
scmutil: improve path calculation for install-relative RC files (issue2841)
Matt Mackall <mpm@selenic.com>
parents:
14484
diff
changeset
|
529 p = os.path.dirname(os.path.dirname(sys.argv[0])) |
16383
f5dd179bfa4a
plan9: initial support for plan 9 from bell labs
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parents:
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diff
changeset
|
530 path.extend(rcfiles(os.path.join(p, root))) |
16436
e98460f6089d
scmutil: fix systemrcpath regression introduced in f5dd179bfa4a
Wolfgang Treutterer <Wolfgang.Treutterer@ipp.mpg.de>
parents:
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diff
changeset
|
531 path.extend(rcfiles('/' + root)) |
13986
9c374cf76b7d
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diff
changeset
|
532 return path |
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diff
changeset
|
533 |
14226
73cca883370d
rename scmutil.user_rcpath to userrcpath
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diff
changeset
|
534 def userrcpath(): |
16383
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parents:
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diff
changeset
|
535 if sys.platform == 'plan9': |
f5dd179bfa4a
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parents:
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diff
changeset
|
536 return [os.environ['home'] + '/lib/hgrc'] |
f5dd179bfa4a
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parents:
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diff
changeset
|
537 else: |
f5dd179bfa4a
plan9: initial support for plan 9 from bell labs
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parents:
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diff
changeset
|
538 return [os.path.expanduser('~/.hgrc')] |
13986
9c374cf76b7d
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diff
changeset
|
539 |
9c374cf76b7d
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diff
changeset
|
540 else: |
9c374cf76b7d
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parents:
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diff
changeset
|
541 |
16808
572d5e254f20
scmutil: use _winreg.HKEY_LOCAL_MACHINE
Adrian Buehlmann <adrian@cadifra.com>
parents:
16791
diff
changeset
|
542 import _winreg |
13986
9c374cf76b7d
move system_rcpath and user_rcpath to scmutil
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diff
changeset
|
543 |
14225
f0ca440b5722
rename scmutil.system_rcpath to systemrcpath
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diff
changeset
|
544 def systemrcpath(): |
13986
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diff
changeset
|
545 '''return default os-specific hgrc search path''' |
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parents:
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diff
changeset
|
546 rcpath = [] |
14236
e949a008999d
rename util.executable_path to executablepath
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parents:
14230
diff
changeset
|
547 filename = util.executablepath() |
13986
9c374cf76b7d
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parents:
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diff
changeset
|
548 # Use mercurial.ini found in directory with hg.exe |
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diff
changeset
|
549 progrc = os.path.join(os.path.dirname(filename), 'mercurial.ini') |
9c374cf76b7d
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diff
changeset
|
550 if os.path.isfile(progrc): |
9c374cf76b7d
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diff
changeset
|
551 rcpath.append(progrc) |
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diff
changeset
|
552 return rcpath |
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parents:
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diff
changeset
|
553 # Use hgrc.d found in directory with hg.exe |
9c374cf76b7d
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diff
changeset
|
554 progrcd = os.path.join(os.path.dirname(filename), 'hgrc.d') |
9c374cf76b7d
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diff
changeset
|
555 if os.path.isdir(progrcd): |
9c374cf76b7d
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parents:
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diff
changeset
|
556 for f, kind in osutil.listdir(progrcd): |
9c374cf76b7d
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parents:
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diff
changeset
|
557 if f.endswith('.rc'): |
9c374cf76b7d
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parents:
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diff
changeset
|
558 rcpath.append(os.path.join(progrcd, f)) |
9c374cf76b7d
move system_rcpath and user_rcpath to scmutil
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parents:
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diff
changeset
|
559 return rcpath |
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parents:
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diff
changeset
|
560 # else look for a system rcpath in the registry |
14230
d51630301241
rename util.lookup_reg to lookupreg
Adrian Buehlmann <adrian@cadifra.com>
parents:
14227
diff
changeset
|
561 value = util.lookupreg('SOFTWARE\\Mercurial', None, |
16808
572d5e254f20
scmutil: use _winreg.HKEY_LOCAL_MACHINE
Adrian Buehlmann <adrian@cadifra.com>
parents:
16791
diff
changeset
|
562 _winreg.HKEY_LOCAL_MACHINE) |
13986
9c374cf76b7d
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parents:
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diff
changeset
|
563 if not isinstance(value, str) or not value: |
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move system_rcpath and user_rcpath to scmutil
Adrian Buehlmann <adrian@cadifra.com>
parents:
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diff
changeset
|
564 return rcpath |
16068
73aaff46175b
use util.localpath() instead of 'str.replace()' to unify path conversion
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
15993
diff
changeset
|
565 value = util.localpath(value) |
13986
9c374cf76b7d
move system_rcpath and user_rcpath to scmutil
Adrian Buehlmann <adrian@cadifra.com>
parents:
13985
diff
changeset
|
566 for p in value.split(os.pathsep): |
9c374cf76b7d
move system_rcpath and user_rcpath to scmutil
Adrian Buehlmann <adrian@cadifra.com>
parents:
13985
diff
changeset
|
567 if p.lower().endswith('mercurial.ini'): |
9c374cf76b7d
move system_rcpath and user_rcpath to scmutil
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parents:
13985
diff
changeset
|
568 rcpath.append(p) |
9c374cf76b7d
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Adrian Buehlmann <adrian@cadifra.com>
parents:
13985
diff
changeset
|
569 elif os.path.isdir(p): |
9c374cf76b7d
move system_rcpath and user_rcpath to scmutil
Adrian Buehlmann <adrian@cadifra.com>
parents:
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diff
changeset
|
570 for f, kind in osutil.listdir(p): |
9c374cf76b7d
move system_rcpath and user_rcpath to scmutil
Adrian Buehlmann <adrian@cadifra.com>
parents:
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diff
changeset
|
571 if f.endswith('.rc'): |
9c374cf76b7d
move system_rcpath and user_rcpath to scmutil
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parents:
13985
diff
changeset
|
572 rcpath.append(os.path.join(p, f)) |
9c374cf76b7d
move system_rcpath and user_rcpath to scmutil
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parents:
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diff
changeset
|
573 return rcpath |
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move system_rcpath and user_rcpath to scmutil
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parents:
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diff
changeset
|
574 |
14226
73cca883370d
rename scmutil.user_rcpath to userrcpath
Adrian Buehlmann <adrian@cadifra.com>
parents:
14225
diff
changeset
|
575 def userrcpath(): |
13986
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parents:
13985
diff
changeset
|
576 '''return os-specific hgrc search path to the user dir''' |
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parents:
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diff
changeset
|
577 home = os.path.expanduser('~') |
9c374cf76b7d
move system_rcpath and user_rcpath to scmutil
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parents:
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diff
changeset
|
578 path = [os.path.join(home, 'mercurial.ini'), |
9c374cf76b7d
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parents:
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diff
changeset
|
579 os.path.join(home, '.hgrc')] |
9c374cf76b7d
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Adrian Buehlmann <adrian@cadifra.com>
parents:
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diff
changeset
|
580 userprofile = os.environ.get('USERPROFILE') |
9c374cf76b7d
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parents:
13985
diff
changeset
|
581 if userprofile: |
9c374cf76b7d
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parents:
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diff
changeset
|
582 path.append(os.path.join(userprofile, 'mercurial.ini')) |
9c374cf76b7d
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Adrian Buehlmann <adrian@cadifra.com>
parents:
13985
diff
changeset
|
583 path.append(os.path.join(userprofile, '.hgrc')) |
9c374cf76b7d
move system_rcpath and user_rcpath to scmutil
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parents:
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diff
changeset
|
584 return path |
14319
b33f3e35efb0
scmutil: move revsingle/pair/range from cmdutil
Matt Mackall <mpm@selenic.com>
parents:
14261
diff
changeset
|
585 |
b33f3e35efb0
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parents:
14261
diff
changeset
|
586 def revsingle(repo, revspec, default='.'): |
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Matt Mackall <mpm@selenic.com>
parents:
14261
diff
changeset
|
587 if not revspec: |
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scmutil: move revsingle/pair/range from cmdutil
Matt Mackall <mpm@selenic.com>
parents:
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diff
changeset
|
588 return repo[default] |
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parents:
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diff
changeset
|
589 |
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parents:
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diff
changeset
|
590 l = revrange(repo, [revspec]) |
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parents:
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diff
changeset
|
591 if len(l) < 1: |
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Matt Mackall <mpm@selenic.com>
parents:
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diff
changeset
|
592 raise util.Abort(_('empty revision set')) |
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parents:
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diff
changeset
|
593 return repo[l[-1]] |
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scmutil: move revsingle/pair/range from cmdutil
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diff
changeset
|
594 |
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Matt Mackall <mpm@selenic.com>
parents:
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diff
changeset
|
595 def revpair(repo, revs): |
b33f3e35efb0
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parents:
14261
diff
changeset
|
596 if not revs: |
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parents:
14261
diff
changeset
|
597 return repo.dirstate.p1(), None |
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Matt Mackall <mpm@selenic.com>
parents:
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diff
changeset
|
598 |
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Matt Mackall <mpm@selenic.com>
parents:
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diff
changeset
|
599 l = revrange(repo, revs) |
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scmutil: move revsingle/pair/range from cmdutil
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parents:
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diff
changeset
|
600 |
b33f3e35efb0
scmutil: move revsingle/pair/range from cmdutil
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parents:
14261
diff
changeset
|
601 if len(l) == 0: |
16790
2a0efa1112ac
revpair: handle odd ranges (issue3474)
Matt Mackall <mpm@selenic.com>
parents:
16479
diff
changeset
|
602 if revs: |
2a0efa1112ac
revpair: handle odd ranges (issue3474)
Matt Mackall <mpm@selenic.com>
parents:
16479
diff
changeset
|
603 raise util.Abort(_('empty revision range')) |
14319
b33f3e35efb0
scmutil: move revsingle/pair/range from cmdutil
Matt Mackall <mpm@selenic.com>
parents:
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diff
changeset
|
604 return repo.dirstate.p1(), None |
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scmutil: move revsingle/pair/range from cmdutil
Matt Mackall <mpm@selenic.com>
parents:
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diff
changeset
|
605 |
16790
2a0efa1112ac
revpair: handle odd ranges (issue3474)
Matt Mackall <mpm@selenic.com>
parents:
16479
diff
changeset
|
606 if len(l) == 1 and len(revs) == 1 and _revrangesep not in revs[0]: |
14319
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Matt Mackall <mpm@selenic.com>
parents:
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diff
changeset
|
607 return repo.lookup(l[0]), None |
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Matt Mackall <mpm@selenic.com>
parents:
14261
diff
changeset
|
608 |
b33f3e35efb0
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parents:
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diff
changeset
|
609 return repo.lookup(l[0]), repo.lookup(l[-1]) |
b33f3e35efb0
scmutil: move revsingle/pair/range from cmdutil
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parents:
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diff
changeset
|
610 |
b33f3e35efb0
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parents:
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diff
changeset
|
611 _revrangesep = ':' |
b33f3e35efb0
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parents:
14261
diff
changeset
|
612 |
b33f3e35efb0
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parents:
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diff
changeset
|
613 def revrange(repo, revs): |
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parents:
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diff
changeset
|
614 """Yield revision as strings from a list of revision specifications.""" |
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scmutil: move revsingle/pair/range from cmdutil
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parents:
14261
diff
changeset
|
615 |
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parents:
14261
diff
changeset
|
616 def revfix(repo, val, defval): |
b33f3e35efb0
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parents:
14261
diff
changeset
|
617 if not val and val != 0 and defval is not None: |
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parents:
14261
diff
changeset
|
618 return defval |
16379
5cbfbb838198
scmutil: use context instead of lookup
Matt Mackall <mpm@selenic.com>
parents:
16208
diff
changeset
|
619 return repo[val].rev() |
14319
b33f3e35efb0
scmutil: move revsingle/pair/range from cmdutil
Matt Mackall <mpm@selenic.com>
parents:
14261
diff
changeset
|
620 |
b33f3e35efb0
scmutil: move revsingle/pair/range from cmdutil
Matt Mackall <mpm@selenic.com>
parents:
14261
diff
changeset
|
621 seen, l = set(), [] |
b33f3e35efb0
scmutil: move revsingle/pair/range from cmdutil
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parents:
14261
diff
changeset
|
622 for spec in revs: |
16390
4df76d5506a9
scmutil: speed up revrange
Bryan O'Sullivan <bryano@fb.com>
parents:
16383
diff
changeset
|
623 if l and not seen: |
4df76d5506a9
scmutil: speed up revrange
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parents:
16383
diff
changeset
|
624 seen = set(l) |
14319
b33f3e35efb0
scmutil: move revsingle/pair/range from cmdutil
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parents:
14261
diff
changeset
|
625 # attempt to parse old-style ranges first to deal with |
b33f3e35efb0
scmutil: move revsingle/pair/range from cmdutil
Matt Mackall <mpm@selenic.com>
parents:
14261
diff
changeset
|
626 # things like old-tag which contain query metacharacters |
b33f3e35efb0
scmutil: move revsingle/pair/range from cmdutil
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parents:
14261
diff
changeset
|
627 try: |
b33f3e35efb0
scmutil: move revsingle/pair/range from cmdutil
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parents:
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diff
changeset
|
628 if isinstance(spec, int): |
b33f3e35efb0
scmutil: move revsingle/pair/range from cmdutil
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parents:
14261
diff
changeset
|
629 seen.add(spec) |
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diff
changeset
|
630 l.append(spec) |
b33f3e35efb0
scmutil: move revsingle/pair/range from cmdutil
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parents:
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diff
changeset
|
631 continue |
b33f3e35efb0
scmutil: move revsingle/pair/range from cmdutil
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parents:
14261
diff
changeset
|
632 |
b33f3e35efb0
scmutil: move revsingle/pair/range from cmdutil
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parents:
14261
diff
changeset
|
633 if _revrangesep in spec: |
b33f3e35efb0
scmutil: move revsingle/pair/range from cmdutil
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parents:
14261
diff
changeset
|
634 start, end = spec.split(_revrangesep, 1) |
b33f3e35efb0
scmutil: move revsingle/pair/range from cmdutil
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parents:
14261
diff
changeset
|
635 start = revfix(repo, start, 0) |
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scmutil: move revsingle/pair/range from cmdutil
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parents:
14261
diff
changeset
|
636 end = revfix(repo, end, len(repo) - 1) |
17992
c95210b82c0e
clfilter: remove usage of `range` and `xrange` in scmutil.revrange
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
17937
diff
changeset
|
637 rangeiter = repo.changelog.revs(start, end) |
16390
4df76d5506a9
scmutil: speed up revrange
Bryan O'Sullivan <bryano@fb.com>
parents:
16383
diff
changeset
|
638 if not seen and not l: |
4df76d5506a9
scmutil: speed up revrange
Bryan O'Sullivan <bryano@fb.com>
parents:
16383
diff
changeset
|
639 # by far the most common case: revs = ["-1:0"] |
17992
c95210b82c0e
clfilter: remove usage of `range` and `xrange` in scmutil.revrange
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
17937
diff
changeset
|
640 l = list(rangeiter) |
16390
4df76d5506a9
scmutil: speed up revrange
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parents:
16383
diff
changeset
|
641 # defer syncing seen until next iteration |
4df76d5506a9
scmutil: speed up revrange
Bryan O'Sullivan <bryano@fb.com>
parents:
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diff
changeset
|
642 continue |
17992
c95210b82c0e
clfilter: remove usage of `range` and `xrange` in scmutil.revrange
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
17937
diff
changeset
|
643 newrevs = set(rangeiter) |
16390
4df76d5506a9
scmutil: speed up revrange
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parents:
16383
diff
changeset
|
644 if seen: |
4df76d5506a9
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parents:
16383
diff
changeset
|
645 newrevs.difference_update(seen) |
16814
9da5a2864f3f
scmutil: seen.union should be seen.update (issue3476)
Bryan O'Sullivan <bryano@fb.com>
parents:
16790
diff
changeset
|
646 seen.update(newrevs) |
16390
4df76d5506a9
scmutil: speed up revrange
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parents:
16383
diff
changeset
|
647 else: |
4df76d5506a9
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parents:
16383
diff
changeset
|
648 seen = newrevs |
4df76d5506a9
scmutil: speed up revrange
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parents:
16383
diff
changeset
|
649 l.extend(sorted(newrevs, reverse=start > end)) |
14319
b33f3e35efb0
scmutil: move revsingle/pair/range from cmdutil
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parents:
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diff
changeset
|
650 continue |
b33f3e35efb0
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parents:
14261
diff
changeset
|
651 elif spec and spec in repo: # single unquoted rev |
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diff
changeset
|
652 rev = revfix(repo, spec, None) |
b33f3e35efb0
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diff
changeset
|
653 if rev in seen: |
b33f3e35efb0
scmutil: move revsingle/pair/range from cmdutil
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parents:
14261
diff
changeset
|
654 continue |
b33f3e35efb0
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parents:
14261
diff
changeset
|
655 seen.add(rev) |
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diff
changeset
|
656 l.append(rev) |
b33f3e35efb0
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diff
changeset
|
657 continue |
b33f3e35efb0
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diff
changeset
|
658 except error.RepoLookupError: |
b33f3e35efb0
scmutil: move revsingle/pair/range from cmdutil
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parents:
14261
diff
changeset
|
659 pass |
b33f3e35efb0
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14261
diff
changeset
|
660 |
b33f3e35efb0
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parents:
14261
diff
changeset
|
661 # fall through to new-style queries if old-style fails |
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parents:
14261
diff
changeset
|
662 m = revset.match(repo.ui, spec) |
17675
8575f4a2126e
clfilter: remove usage of `range` in favor of iteration over changelog
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17649
diff
changeset
|
663 dl = [r for r in m(repo, list(repo)) if r not in seen] |
17037
419966126a05
scmutil: speed up new-style range extension
Bryan O'Sullivan <bryano@fb.com>
parents:
17007
diff
changeset
|
664 l.extend(dl) |
419966126a05
scmutil: speed up new-style range extension
Bryan O'Sullivan <bryano@fb.com>
parents:
17007
diff
changeset
|
665 seen.update(dl) |
14319
b33f3e35efb0
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diff
changeset
|
666 |
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diff
changeset
|
667 return l |
14320 | 668 |
669 def expandpats(pats): | |
670 if not util.expandglobs: | |
671 return list(pats) | |
672 ret = [] | |
673 for p in pats: | |
674 kind, name = matchmod._patsplit(p, None) | |
675 if kind is None: | |
676 try: | |
677 globbed = glob.glob(name) | |
678 except re.error: | |
679 globbed = [name] | |
680 if globbed: | |
681 ret.extend(globbed) | |
682 continue | |
683 ret.append(p) | |
684 return ret | |
685 | |
16171
336e61875335
graphlog: restore FILE glob expansion on Windows
Patrick Mezard <patrick@mezard.eu>
parents:
16167
diff
changeset
|
686 def matchandpats(ctx, pats=[], opts={}, globbed=False, default='relpath'): |
14320 | 687 if pats == ("",): |
688 pats = [] | |
689 if not globbed and default == 'relpath': | |
690 pats = expandpats(pats or []) | |
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691 |
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692 m = ctx.match(pats, opts.get('include'), opts.get('exclude'), |
14669
2d2604adfdd6
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|
693 default) |
14320 | 694 def badfn(f, msg): |
14671
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695 ctx._repo.ui.warn("%s: %s\n" % (m.rel(f), msg)) |
14320 | 696 m.bad = badfn |
16171
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|
697 return m, pats |
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|
698 |
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|
699 def match(ctx, pats=[], opts={}, globbed=False, default='relpath'): |
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diff
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|
700 return matchandpats(ctx, pats, opts, globbed, default)[0] |
14320 | 701 |
702 def matchall(repo): | |
703 return matchmod.always(repo.root, repo.getcwd()) | |
704 | |
705 def matchfiles(repo, files): | |
706 return matchmod.exact(repo.root, repo.getcwd(), files) | |
707 | |
708 def addremove(repo, pats=[], opts={}, dry_run=None, similarity=None): | |
709 if dry_run is None: | |
710 dry_run = opts.get('dry_run') | |
711 if similarity is None: | |
712 similarity = float(opts.get('similarity') or 0) | |
713 # we'd use status here, except handling of symlinks and ignore is tricky | |
714 added, unknown, deleted, removed = [], [], [], [] | |
715 audit_path = pathauditor(repo.root) | |
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716 m = match(repo[None], pats, opts) |
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|
717 rejected = [] |
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718 m.bad = lambda x, y: rejected.append(x) |
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|
719 |
14320 | 720 for abs in repo.walk(m): |
721 target = repo.wjoin(abs) | |
722 good = True | |
723 try: | |
724 audit_path(abs) | |
725 except (OSError, util.Abort): | |
726 good = False | |
727 rel = m.rel(abs) | |
728 exact = m.exact(abs) | |
729 if good and abs not in repo.dirstate: | |
730 unknown.append(abs) | |
731 if repo.ui.verbose or not exact: | |
732 repo.ui.status(_('adding %s\n') % ((pats and rel) or abs)) | |
16683 | 733 elif (repo.dirstate[abs] != 'r' and |
734 (not good or not os.path.lexists(target) or | |
735 (os.path.isdir(target) and not os.path.islink(target)))): | |
14320 | 736 deleted.append(abs) |
737 if repo.ui.verbose or not exact: | |
738 repo.ui.status(_('removing %s\n') % ((pats and rel) or abs)) | |
739 # for finding renames | |
740 elif repo.dirstate[abs] == 'r': | |
741 removed.append(abs) | |
742 elif repo.dirstate[abs] == 'a': | |
743 added.append(abs) | |
744 copies = {} | |
745 if similarity > 0: | |
746 for old, new, score in similar.findrenames(repo, | |
747 added + unknown, removed + deleted, similarity): | |
748 if repo.ui.verbose or not m.exact(old) or not m.exact(new): | |
749 repo.ui.status(_('recording removal of %s as rename to %s ' | |
750 '(%d%% similar)\n') % | |
751 (m.rel(old), m.rel(new), score * 100)) | |
752 copies[new] = old | |
753 | |
754 if not dry_run: | |
755 wctx = repo[None] | |
756 wlock = repo.wlock() | |
757 try: | |
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5f6090e559fa
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parents:
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diff
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|
758 wctx.forget(deleted) |
14320 | 759 wctx.add(unknown) |
760 for new, old in copies.iteritems(): | |
761 wctx.copy(old, new) | |
762 finally: | |
763 wlock.release() | |
764 | |
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765 for f in rejected: |
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766 if f in m.files(): |
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|
767 return 1 |
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diff
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|
768 return 0 |
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|
769 |
14320 | 770 def updatedir(ui, repo, patches, similarity=0): |
771 '''Update dirstate after patch application according to metadata''' | |
772 if not patches: | |
773 return [] | |
774 copies = [] | |
775 removes = set() | |
776 cfiles = patches.keys() | |
777 cwd = repo.getcwd() | |
778 if cwd: | |
779 cfiles = [util.pathto(repo.root, cwd, f) for f in patches.keys()] | |
780 for f in patches: | |
781 gp = patches[f] | |
782 if not gp: | |
783 continue | |
784 if gp.op == 'RENAME': | |
785 copies.append((gp.oldpath, gp.path)) | |
786 removes.add(gp.oldpath) | |
787 elif gp.op == 'COPY': | |
788 copies.append((gp.oldpath, gp.path)) | |
789 elif gp.op == 'DELETE': | |
790 removes.add(gp.path) | |
791 | |
792 wctx = repo[None] | |
793 for src, dst in copies: | |
794 dirstatecopy(ui, repo, wctx, src, dst, cwd=cwd) | |
795 if (not similarity) and removes: | |
796 wctx.remove(sorted(removes), True) | |
797 | |
798 for f in patches: | |
799 gp = patches[f] | |
800 if gp and gp.mode: | |
801 islink, isexec = gp.mode | |
802 dst = repo.wjoin(gp.path) | |
803 # patch won't create empty files | |
804 if gp.op == 'ADD' and not os.path.lexists(dst): | |
805 flags = (isexec and 'x' or '') + (islink and 'l' or '') | |
806 repo.wwrite(gp.path, '', flags) | |
807 util.setflags(dst, islink, isexec) | |
808 addremove(repo, cfiles, similarity=similarity) | |
809 files = patches.keys() | |
810 files.extend([r for r in removes if r not in files]) | |
811 return sorted(files) | |
812 | |
813 def dirstatecopy(ui, repo, wctx, src, dst, dryrun=False, cwd=None): | |
814 """Update the dirstate to reflect the intent of copying src to dst. For | |
815 different reasons it might not end with dst being marked as copied from src. | |
816 """ | |
817 origsrc = repo.dirstate.copied(src) or src | |
818 if dst == origsrc: # copying back a copy? | |
819 if repo.dirstate[dst] not in 'mn' and not dryrun: | |
820 repo.dirstate.normallookup(dst) | |
821 else: | |
822 if repo.dirstate[origsrc] == 'a' and origsrc == src: | |
823 if not ui.quiet: | |
824 ui.warn(_("%s has not been committed yet, so no copy " | |
825 "data will be stored for %s.\n") | |
826 % (repo.pathto(origsrc, cwd), repo.pathto(dst, cwd))) | |
827 if repo.dirstate[dst] in '?r' and not dryrun: | |
828 wctx.add([dst]) | |
829 elif not dryrun: | |
830 wctx.copy(origsrc, dst) | |
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|
831 |
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|
832 def readrequires(opener, supported): |
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833 '''Reads and parses .hg/requires and checks if all entries found |
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834 are in the list of supported features.''' |
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|
835 requirements = set(opener.read("requires").splitlines()) |
14746
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|
836 missings = [] |
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837 for r in requirements: |
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|
838 if r not in supported: |
14484
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Matt Mackall <mpm@selenic.com>
parents:
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diff
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|
839 if not r or not r[0].isalnum(): |
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diff
changeset
|
840 raise error.RequirementError(_(".hg/requires file is corrupt")) |
14746
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|
841 missings.append(r) |
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|
842 missings.sort() |
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diff
changeset
|
843 if missings: |
16683 | 844 raise error.RequirementError( |
845 _("unknown repository format: requires features '%s' (upgrade " | |
846 "Mercurial)") % "', '".join(missings)) | |
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diff
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|
847 return requirements |
14928
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|
848 |
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849 class filecacheentry(object): |
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850 def __init__(self, path): |
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851 self.path = path |
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852 self.cachestat = filecacheentry.stat(self.path) |
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853 |
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854 if self.cachestat: |
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855 self._cacheable = self.cachestat.cacheable() |
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856 else: |
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857 # None means we don't know yet |
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858 self._cacheable = None |
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859 |
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860 def refresh(self): |
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861 if self.cacheable(): |
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862 self.cachestat = filecacheentry.stat(self.path) |
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863 |
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864 def cacheable(self): |
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865 if self._cacheable is not None: |
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866 return self._cacheable |
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|
867 |
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868 # we don't know yet, assume it is for now |
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869 return True |
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|
870 |
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871 def changed(self): |
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872 # no point in going further if we can't cache it |
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873 if not self.cacheable(): |
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|
874 return True |
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|
875 |
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876 newstat = filecacheentry.stat(self.path) |
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877 |
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878 # we may not know if it's cacheable yet, check again now |
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879 if newstat and self._cacheable is None: |
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880 self._cacheable = newstat.cacheable() |
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|
881 |
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882 # check again |
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883 if not self._cacheable: |
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|
884 return True |
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|
885 |
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886 if self.cachestat != newstat: |
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887 self.cachestat = newstat |
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|
888 return True |
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|
889 else: |
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|
890 return False |
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|
891 |
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diff
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|
892 @staticmethod |
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|
893 def stat(path): |
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|
894 try: |
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895 return util.cachestat(path) |
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|
896 except OSError, e: |
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|
897 if e.errno != errno.ENOENT: |
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|
898 raise |
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|
899 |
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|
900 class filecache(object): |
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901 '''A property like decorator that tracks a file under .hg/ for updates. |
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|
902 |
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903 Records stat info when called in _filecache. |
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|
904 |
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905 On subsequent calls, compares old stat info with new info, and recreates |
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|
906 the object when needed, updating the new stat info in _filecache. |
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|
907 |
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908 Mercurial either atomic renames or appends for files under .hg, |
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|
909 so to ensure the cache is reliable we need the filesystem to be able |
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910 to tell us if a file has been replaced. If it can't, we fallback to |
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911 recreating the object on every call (essentially the same behaviour as |
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912 propertycache).''' |
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913 def __init__(self, path): |
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914 self.path = path |
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915 |
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916 def join(self, obj, fname): |
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917 """Used to compute the runtime path of the cached file. |
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918 |
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919 Users should subclass filecache and provide their own version of this |
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920 function to call the appropriate join function on 'obj' (an instance |
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921 of the class that its member function was decorated). |
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922 """ |
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923 return obj.join(fname) |
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924 |
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925 def __call__(self, func): |
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926 self.func = func |
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927 self.name = func.__name__ |
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928 return self |
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929 |
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930 def __get__(self, obj, type=None): |
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931 # do we need to check if the file changed? |
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932 if self.name in obj.__dict__: |
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933 return obj.__dict__[self.name] |
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934 |
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935 entry = obj._filecache.get(self.name) |
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936 |
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937 if entry: |
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938 if entry.changed(): |
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939 entry.obj = self.func(obj) |
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940 else: |
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941 path = self.join(obj, self.path) |
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942 |
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943 # We stat -before- creating the object so our cache doesn't lie if |
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944 # a writer modified between the time we read and stat |
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945 entry = filecacheentry(path) |
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946 entry.obj = self.func(obj) |
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947 |
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948 obj._filecache[self.name] = entry |
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949 |
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950 obj.__dict__[self.name] = entry.obj |
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951 return entry.obj |
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952 |
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953 def __set__(self, obj, value): |
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954 if self.name in obj._filecache: |
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955 obj._filecache[self.name].obj = value # update cached copy |
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956 obj.__dict__[self.name] = value # update copy returned by obj.x |
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957 |
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958 def __delete__(self, obj): |
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959 try: |
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960 del obj.__dict__[self.name] |
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961 except KeyError: |
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962 raise AttributeError, self.name |