Mercurial > hg
annotate mercurial/dirstatemap.py @ 48123:771c90807a2b
dirstatemap: arrange methods by category
The dirstatemap code cover various aspects, it grow a bit messy over the years. So we shuffle the code around into some documented categories.
This will help use to clean up the code.
No code was changed in this changeset, only code move.
Differential Revision: https://phab.mercurial-scm.org/D11568
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Sat, 02 Oct 2021 12:10:46 +0200 |
parents | bbd924a36a6e |
children | 08e04bb0bff3 |
rev | line source |
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1 # dirstatemap.py |
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2 # |
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3 # This software may be used and distributed according to the terms of the |
10263 | 4 # GNU General Public License version 2 or any later version. |
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5 |
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6 from __future__ import absolute_import |
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7 |
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8 import errno |
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9 |
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10 from .i18n import _ |
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11 |
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12 from . import ( |
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13 error, |
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14 pathutil, |
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15 policy, |
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16 pycompat, |
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17 txnutil, |
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18 util, |
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19 ) |
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20 |
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21 from .dirstateutils import ( |
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22 docket as docketmod, |
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23 ) |
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24 |
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25 parsers = policy.importmod('parsers') |
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26 rustmod = policy.importrust('dirstate') |
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27 |
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28 propertycache = util.propertycache |
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29 |
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30 if rustmod is None: |
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31 DirstateItem = parsers.DirstateItem |
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32 else: |
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33 DirstateItem = rustmod.DirstateItem |
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34 |
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35 rangemask = 0x7FFFFFFF |
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36 |
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37 |
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38 class _dirstatemapcommon(object): |
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39 """ |
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40 Methods that are identical for both implementations of the dirstatemap |
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41 class, with and without Rust extensions enabled. |
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42 """ |
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43 |
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44 # please pytype |
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45 |
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46 _map = None |
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47 copymap = None |
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48 |
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49 def __init__(self, ui, opener, root, nodeconstants, use_dirstate_v2): |
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50 self._use_dirstate_v2 = use_dirstate_v2 |
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51 self._nodeconstants = nodeconstants |
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52 self._ui = ui |
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53 self._opener = opener |
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54 self._root = root |
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55 self._filename = b'dirstate' |
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56 self._nodelen = 20 # Also update Rust code when changing this! |
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57 self._parents = None |
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58 self._dirtyparents = False |
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59 |
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60 # for consistent view between _pl() and _read() invocations |
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61 self._pendingmode = None |
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62 |
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63 def preload(self): |
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64 """Loads the underlying data, if it's not already loaded""" |
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65 self._map |
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66 |
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67 def get(self, key, default=None): |
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68 return self._map.get(key, default) |
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69 |
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70 def __len__(self): |
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71 return len(self._map) |
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72 |
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73 def __iter__(self): |
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74 return iter(self._map) |
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75 |
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76 def __contains__(self, key): |
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77 return key in self._map |
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78 |
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79 def __getitem__(self, item): |
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80 return self._map[item] |
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81 |
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82 |
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83 class dirstatemap(_dirstatemapcommon): |
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84 """Map encapsulating the dirstate's contents. |
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85 |
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86 The dirstate contains the following state: |
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87 |
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88 - `identity` is the identity of the dirstate file, which can be used to |
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89 detect when changes have occurred to the dirstate file. |
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90 |
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91 - `parents` is a pair containing the parents of the working copy. The |
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92 parents are updated by calling `setparents`. |
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93 |
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94 - the state map maps filenames to tuples of (state, mode, size, mtime), |
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95 where state is a single character representing 'normal', 'added', |
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96 'removed', or 'merged'. It is read by treating the dirstate as a |
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97 dict. File state is updated by calling various methods (see each |
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98 documentation for details): |
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99 |
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100 - `reset_state`, |
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101 - `set_tracked` |
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102 - `set_untracked` |
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103 - `set_clean` |
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104 - `set_possibly_dirty` |
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105 |
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106 - `copymap` maps destination filenames to their source filename. |
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107 |
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108 The dirstate also provides the following views onto the state: |
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109 |
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110 - `filefoldmap` is a dict mapping normalized filenames to the denormalized |
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111 form that they appear as in the dirstate. |
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112 |
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113 - `dirfoldmap` is a dict mapping normalized directory names to the |
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114 denormalized form that they appear as in the dirstate. |
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115 """ |
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116 |
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117 def __init__(self, ui, opener, root, nodeconstants, use_dirstate_v2): |
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118 super(dirstatemap, self).__init__( |
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119 ui, opener, root, nodeconstants, use_dirstate_v2 |
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120 ) |
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121 if self._use_dirstate_v2: |
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122 msg = "Dirstate V2 not supportedi" |
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123 msg += "(should have detected unsupported requirement)" |
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124 raise error.ProgrammingError(msg) |
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125 |
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126 ### Core data storage and access |
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127 |
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128 @propertycache |
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129 def _map(self): |
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130 self._map = {} |
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131 self.read() |
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132 return self._map |
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133 |
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134 @propertycache |
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135 def copymap(self): |
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136 self.copymap = {} |
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137 self._map |
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138 return self.copymap |
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139 |
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140 def clear(self): |
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141 self._map.clear() |
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142 self.copymap.clear() |
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143 self.setparents(self._nodeconstants.nullid, self._nodeconstants.nullid) |
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144 util.clearcachedproperty(self, b"_dirs") |
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145 util.clearcachedproperty(self, b"_alldirs") |
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146 util.clearcachedproperty(self, b"filefoldmap") |
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147 util.clearcachedproperty(self, b"dirfoldmap") |
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148 |
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149 def items(self): |
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150 return pycompat.iteritems(self._map) |
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151 |
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152 # forward for python2,3 compat |
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153 iteritems = items |
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154 |
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155 def debug_iter(self, all): |
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156 """ |
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157 Return an iterator of (filename, state, mode, size, mtime) tuples |
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158 |
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159 `all` is unused when Rust is not enabled |
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160 """ |
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161 for (filename, item) in self.items(): |
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162 yield (filename, item.state, item.mode, item.size, item.mtime) |
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163 |
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164 def keys(self): |
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165 return self._map.keys() |
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166 |
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167 ### reading/setting parents |
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168 |
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169 def parents(self): |
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170 if not self._parents: |
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171 try: |
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172 fp = self._opendirstatefile() |
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173 st = fp.read(2 * self._nodelen) |
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174 fp.close() |
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175 except IOError as err: |
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176 if err.errno != errno.ENOENT: |
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177 raise |
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178 # File doesn't exist, so the current state is empty |
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179 st = b'' |
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180 |
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181 l = len(st) |
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182 if l == self._nodelen * 2: |
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183 self._parents = ( |
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184 st[: self._nodelen], |
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185 st[self._nodelen : 2 * self._nodelen], |
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186 ) |
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187 elif l == 0: |
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188 self._parents = ( |
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189 self._nodeconstants.nullid, |
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190 self._nodeconstants.nullid, |
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191 ) |
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192 else: |
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193 raise error.Abort( |
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194 _(b'working directory state appears damaged!') |
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195 ) |
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196 |
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197 return self._parents |
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198 |
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199 def setparents(self, p1, p2, fold_p2=False): |
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200 self._parents = (p1, p2) |
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201 self._dirtyparents = True |
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202 copies = {} |
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203 if fold_p2: |
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204 for f, s in pycompat.iteritems(self._map): |
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205 # Discard "merged" markers when moving away from a merge state |
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206 if s.merged or s.from_p2: |
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207 source = self.copymap.pop(f, None) |
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208 if source: |
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209 copies[f] = source |
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210 s.drop_merge_data() |
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211 return copies |
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212 |
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213 ### disk interaction |
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214 |
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215 def read(self): |
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216 # ignore HG_PENDING because identity is used only for writing |
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217 self.identity = util.filestat.frompath( |
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218 self._opener.join(self._filename) |
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219 ) |
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220 |
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221 try: |
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222 fp = self._opendirstatefile() |
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223 try: |
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224 st = fp.read() |
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225 finally: |
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226 fp.close() |
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227 except IOError as err: |
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228 if err.errno != errno.ENOENT: |
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229 raise |
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230 return |
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231 if not st: |
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232 return |
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233 |
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234 if util.safehasattr(parsers, b'dict_new_presized'): |
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235 # Make an estimate of the number of files in the dirstate based on |
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236 # its size. This trades wasting some memory for avoiding costly |
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237 # resizes. Each entry have a prefix of 17 bytes followed by one or |
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238 # two path names. Studies on various large-scale real-world repositories |
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239 # found 54 bytes a reasonable upper limit for the average path names. |
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240 # Copy entries are ignored for the sake of this estimate. |
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241 self._map = parsers.dict_new_presized(len(st) // 71) |
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242 |
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243 # Python's garbage collector triggers a GC each time a certain number |
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244 # of container objects (the number being defined by |
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245 # gc.get_threshold()) are allocated. parse_dirstate creates a tuple |
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246 # for each file in the dirstate. The C version then immediately marks |
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247 # them as not to be tracked by the collector. However, this has no |
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248 # effect on when GCs are triggered, only on what objects the GC looks |
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249 # into. This means that O(number of files) GCs are unavoidable. |
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250 # Depending on when in the process's lifetime the dirstate is parsed, |
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251 # this can get very expensive. As a workaround, disable GC while |
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252 # parsing the dirstate. |
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253 # |
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254 # (we cannot decorate the function directly since it is in a C module) |
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255 parse_dirstate = util.nogc(parsers.parse_dirstate) |
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256 p = parse_dirstate(self._map, self.copymap, st) |
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257 if not self._dirtyparents: |
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258 self.setparents(*p) |
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259 |
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260 # Avoid excess attribute lookups by fast pathing certain checks |
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261 self.__contains__ = self._map.__contains__ |
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262 self.__getitem__ = self._map.__getitem__ |
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263 self.get = self._map.get |
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264 |
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265 def write(self, _tr, st, now): |
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266 d = parsers.pack_dirstate(self._map, self.copymap, self.parents(), now) |
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267 st.write(d) |
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268 st.close() |
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269 self._dirtyparents = False |
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270 |
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271 def _opendirstatefile(self): |
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272 fp, mode = txnutil.trypending(self._root, self._opener, self._filename) |
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273 if self._pendingmode is not None and self._pendingmode != mode: |
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274 fp.close() |
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275 raise error.Abort( |
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276 _(b'working directory state may be changed parallelly') |
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277 ) |
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278 self._pendingmode = mode |
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279 return fp |
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280 |
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281 @propertycache |
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282 def identity(self): |
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283 self._map |
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284 return self.identity |
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285 |
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286 ### code related to maintaining and accessing "extra" property |
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287 # (e.g. "has_dir") |
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288 |
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289 def _dirs_incr(self, filename, old_entry=None): |
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290 """incremente the dirstate counter if applicable""" |
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291 if ( |
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292 old_entry is None or old_entry.removed |
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293 ) and "_dirs" in self.__dict__: |
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294 self._dirs.addpath(filename) |
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295 if old_entry is None and "_alldirs" in self.__dict__: |
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296 self._alldirs.addpath(filename) |
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297 |
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298 def _dirs_decr(self, filename, old_entry=None, remove_variant=False): |
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299 """decremente the dirstate counter if applicable""" |
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300 if old_entry is not None: |
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301 if "_dirs" in self.__dict__ and not old_entry.removed: |
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302 self._dirs.delpath(filename) |
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303 if "_alldirs" in self.__dict__ and not remove_variant: |
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304 self._alldirs.delpath(filename) |
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305 elif remove_variant and "_alldirs" in self.__dict__: |
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306 self._alldirs.addpath(filename) |
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307 if "filefoldmap" in self.__dict__: |
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308 normed = util.normcase(filename) |
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309 self.filefoldmap.pop(normed, None) |
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310 |
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311 @propertycache |
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312 def filefoldmap(self): |
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313 """Returns a dictionary mapping normalized case paths to their |
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314 non-normalized versions. |
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315 """ |
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316 try: |
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317 makefilefoldmap = parsers.make_file_foldmap |
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318 except AttributeError: |
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319 pass |
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320 else: |
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321 return makefilefoldmap( |
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322 self._map, util.normcasespec, util.normcasefallback |
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323 ) |
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324 |
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325 f = {} |
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326 normcase = util.normcase |
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327 for name, s in pycompat.iteritems(self._map): |
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328 if not s.removed: |
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329 f[normcase(name)] = name |
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330 f[b'.'] = b'.' # prevents useless util.fspath() invocation |
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331 return f |
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332 |
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333 @propertycache |
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334 def dirfoldmap(self): |
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335 f = {} |
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336 normcase = util.normcase |
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337 for name in self._dirs: |
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338 f[normcase(name)] = name |
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339 return f |
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340 |
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341 def hastrackeddir(self, d): |
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342 """ |
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343 Returns True if the dirstate contains a tracked (not removed) file |
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344 in this directory. |
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345 """ |
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346 return d in self._dirs |
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347 |
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348 def hasdir(self, d): |
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349 """ |
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350 Returns True if the dirstate contains a file (tracked or removed) |
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351 in this directory. |
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352 """ |
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353 return d in self._alldirs |
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354 |
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355 @propertycache |
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356 def _dirs(self): |
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357 return pathutil.dirs(self._map, only_tracked=True) |
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358 |
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359 @propertycache |
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360 def _alldirs(self): |
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361 return pathutil.dirs(self._map) |
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362 |
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363 ### code related to manipulation of entries and copy-sources |
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364 |
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365 def set_possibly_dirty(self, filename): |
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366 """record that the current state of the file on disk is unknown""" |
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367 self[filename].set_possibly_dirty() |
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368 |
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369 def set_clean(self, filename, mode, size, mtime): |
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370 """mark a file as back to a clean state""" |
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371 entry = self[filename] |
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372 mtime = mtime & rangemask |
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373 size = size & rangemask |
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374 entry.set_clean(mode, size, mtime) |
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375 self.copymap.pop(filename, None) |
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376 |
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377 def reset_state( |
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378 self, |
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379 filename, |
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380 wc_tracked=False, |
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381 p1_tracked=False, |
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382 p2_tracked=False, |
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383 merged=False, |
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384 clean_p1=False, |
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385 clean_p2=False, |
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386 possibly_dirty=False, |
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387 parentfiledata=None, |
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388 ): |
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389 """Set a entry to a given state, diregarding all previous state |
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390 |
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391 This is to be used by the part of the dirstate API dedicated to |
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392 adjusting the dirstate after a update/merge. |
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393 |
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394 note: calling this might result to no entry existing at all if the |
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395 dirstate map does not see any point at having one for this file |
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396 anymore. |
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397 """ |
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398 if merged and (clean_p1 or clean_p2): |
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399 msg = b'`merged` argument incompatible with `clean_p1`/`clean_p2`' |
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400 raise error.ProgrammingError(msg) |
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401 # copy information are now outdated |
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402 # (maybe new information should be in directly passed to this function) |
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403 self.copymap.pop(filename, None) |
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404 |
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405 if not (p1_tracked or p2_tracked or wc_tracked): |
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406 old_entry = self._map.pop(filename, None) |
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407 self._dirs_decr(filename, old_entry=old_entry) |
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408 self.copymap.pop(filename, None) |
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409 return |
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410 elif merged: |
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411 pass |
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412 elif not (p1_tracked or p2_tracked) and wc_tracked: |
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413 pass # file is added, nothing special to adjust |
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414 elif (p1_tracked or p2_tracked) and not wc_tracked: |
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415 pass |
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416 elif clean_p2 and wc_tracked: |
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417 pass |
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418 elif not p1_tracked and p2_tracked and wc_tracked: |
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419 clean_p2 = True |
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420 elif possibly_dirty: |
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421 pass |
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422 elif wc_tracked: |
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423 # this is a "normal" file |
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424 if parentfiledata is None: |
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425 msg = b'failed to pass parentfiledata for a normal file: %s' |
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|
426 msg %= filename |
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diff
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|
427 raise error.ProgrammingError(msg) |
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|
428 else: |
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|
429 assert False, 'unreachable' |
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diff
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|
430 |
47897
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diff
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|
431 old_entry = self._map.get(filename) |
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432 self._dirs_incr(filename, old_entry) |
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433 entry = DirstateItem( |
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434 wc_tracked=wc_tracked, |
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diff
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435 p1_tracked=p1_tracked, |
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436 p2_tracked=p2_tracked, |
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diff
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|
437 merged=merged, |
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diff
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|
438 clean_p1=clean_p1, |
4f0ebf83e4dc
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diff
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|
439 clean_p2=clean_p2, |
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440 possibly_dirty=possibly_dirty, |
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441 parentfiledata=parentfiledata, |
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|
442 ) |
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443 self._map[filename] = entry |
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|
444 |
47990
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dirstate: introduce a set_tracked method on "map" and "item"
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parents:
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diff
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|
445 def set_tracked(self, filename): |
0d2a404f1932
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446 new = False |
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447 entry = self.get(filename) |
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448 if entry is None: |
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449 self._dirs_incr(filename) |
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450 entry = DirstateItem( |
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451 p1_tracked=False, |
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diff
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452 p2_tracked=False, |
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diff
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453 wc_tracked=True, |
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454 merged=False, |
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|
455 clean_p1=False, |
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|
456 clean_p2=False, |
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diff
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|
457 possibly_dirty=False, |
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diff
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|
458 parentfiledata=None, |
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diff
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|
459 ) |
0d2a404f1932
dirstate: introduce a set_tracked method on "map" and "item"
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diff
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|
460 self._map[filename] = entry |
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diff
changeset
|
461 new = True |
0d2a404f1932
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462 elif not entry.tracked: |
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|
463 self._dirs_incr(filename, entry) |
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464 entry.set_tracked() |
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465 new = True |
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466 else: |
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467 # XXX This is probably overkill for more case, but we need this to |
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468 # fully replace the `normallookup` call with `set_tracked` one. |
0d2a404f1932
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|
469 # Consider smoothing this in the future. |
0d2a404f1932
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diff
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|
470 self.set_possibly_dirty(filename) |
0d2a404f1932
dirstate: introduce a set_tracked method on "map" and "item"
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diff
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|
471 return new |
0d2a404f1932
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diff
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|
472 |
47890
3853e6ee160d
dirstatemap: replace `removefile` by an explicit `entry.set_untracked()`
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parents:
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diff
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|
473 def set_untracked(self, f): |
3853e6ee160d
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diff
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|
474 """Mark a file as no longer tracked in the dirstate map""" |
47972
5a6c1ef4bcac
dirstate: make dirstatemap.set_untracked deal with added file
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diff
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|
475 entry = self.get(f) |
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diff
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|
476 if entry is None: |
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diff
changeset
|
477 return False |
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|
478 else: |
5a6c1ef4bcac
dirstate: make dirstatemap.set_untracked deal with added file
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diff
changeset
|
479 self._dirs_decr(f, old_entry=entry, remove_variant=not entry.added) |
5a6c1ef4bcac
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|
480 if not entry.merged: |
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diff
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|
481 self.copymap.pop(f, None) |
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|
482 if entry.added: |
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|
483 self._map.pop(f, None) |
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|
484 else: |
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|
485 entry.set_untracked() |
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|
486 return True |
35079
853b7c41d19c
dirstate: add explicit methods for modifying dirstate
Mark Thomas <mbthomas@fb.com>
parents:
35078
diff
changeset
|
487 |
42755
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rust-dirstate: call rust dirstatemap from Python
Raphaël Gomès <rgomes@octobus.net>
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42747
diff
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|
488 |
749ef8c31187
rust-dirstate: call rust dirstatemap from Python
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|
489 if rustmod is not None: |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42927
diff
changeset
|
490 |
48119
aec5b0981c26
dirstatemap: introduce a common base for the dirstatemap class
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parents:
48109
diff
changeset
|
491 class dirstatemap(_dirstatemapcommon): |
47280
1766130fe9ba
dirstate-v2: Change the on-disk format when the requirement is enabled
Simon Sapin <simon.sapin@octobus.net>
parents:
47277
diff
changeset
|
492 def __init__(self, ui, opener, root, nodeconstants, use_dirstate_v2): |
48120
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diff
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|
493 super(dirstatemap, self).__init__( |
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|
494 ui, opener, root, nodeconstants, use_dirstate_v2 |
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diff
changeset
|
495 ) |
47674
ff97e793ed36
dirstate-v2: Introduce a docket file
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parents:
47672
diff
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|
496 self._docket = None |
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497 |
48123
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498 ### Core data storage and access |
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diff
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|
499 |
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diff
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|
500 @property |
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|
501 def docket(self): |
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502 if not self._docket: |
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|
503 if not self._use_dirstate_v2: |
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diff
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|
504 raise error.ProgrammingError( |
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diff
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|
505 b'dirstate only has a docket in v2 format' |
771c90807a2b
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changeset
|
506 ) |
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diff
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|
507 self._docket = docketmod.DirstateDocket.parse( |
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diff
changeset
|
508 self._readdirstatefile(), self._nodeconstants |
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diff
changeset
|
509 ) |
771c90807a2b
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510 return self._docket |
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changeset
|
511 |
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dirstatemap: arrange methods by category
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diff
changeset
|
512 @propertycache |
771c90807a2b
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diff
changeset
|
513 def _map(self): |
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diff
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|
514 """ |
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diff
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|
515 Fills the Dirstatemap when called. |
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516 """ |
771c90807a2b
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diff
changeset
|
517 # ignore HG_PENDING because identity is used only for writing |
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diff
changeset
|
518 self.identity = util.filestat.frompath( |
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diff
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|
519 self._opener.join(self._filename) |
771c90807a2b
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diff
changeset
|
520 ) |
771c90807a2b
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|
521 |
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diff
changeset
|
522 if self._use_dirstate_v2: |
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diff
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|
523 if self.docket.uuid: |
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parents:
48122
diff
changeset
|
524 # TODO: use mmap when possible |
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diff
changeset
|
525 data = self._opener.read(self.docket.data_filename()) |
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diff
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|
526 else: |
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527 data = b'' |
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528 self._map = rustmod.DirstateMap.new_v2( |
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529 data, self.docket.data_size, self.docket.tree_metadata |
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530 ) |
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531 parents = self.docket.parents |
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532 else: |
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533 self._map, parents = rustmod.DirstateMap.new_v1( |
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534 self._readdirstatefile() |
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535 ) |
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536 |
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537 if parents and not self._dirtyparents: |
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538 self.setparents(*parents) |
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539 |
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540 self.__contains__ = self._map.__contains__ |
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541 self.__getitem__ = self._map.__getitem__ |
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542 self.get = self._map.get |
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543 return self._map |
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544 |
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545 @property |
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546 def copymap(self): |
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547 return self._map.copymap() |
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548 |
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549 def debug_iter(self, all): |
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550 """ |
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551 Return an iterator of (filename, state, mode, size, mtime) tuples |
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552 |
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553 `all`: also include with `state == b' '` dirstate tree nodes that |
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554 don't have an associated `DirstateItem`. |
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555 |
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556 """ |
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557 return self._map.debug_iter(all) |
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558 |
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559 def clear(self): |
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560 self._map.clear() |
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561 self.setparents( |
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562 self._nodeconstants.nullid, self._nodeconstants.nullid |
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563 ) |
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564 util.clearcachedproperty(self, b"_dirs") |
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565 util.clearcachedproperty(self, b"_alldirs") |
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566 util.clearcachedproperty(self, b"dirfoldmap") |
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567 |
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568 def items(self): |
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569 return self._map.items() |
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570 |
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571 # forward for python2,3 compat |
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572 iteritems = items |
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573 |
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574 def keys(self): |
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575 return iter(self._map) |
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576 |
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577 ### reading/setting parents |
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578 |
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579 def setparents(self, p1, p2, fold_p2=False): |
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580 self._parents = (p1, p2) |
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581 self._dirtyparents = True |
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582 copies = {} |
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583 if fold_p2: |
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584 # Collect into an intermediate list to avoid a `RuntimeError` |
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585 # exception due to mutation during iteration. |
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586 # TODO: move this the whole loop to Rust where `iter_mut` |
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587 # enables in-place mutation of elements of a collection while |
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588 # iterating it, without mutating the collection itself. |
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589 candidatefiles = [ |
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590 (f, s) |
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591 for f, s in self._map.items() |
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592 if s.merged or s.from_p2 |
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593 ] |
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594 for f, s in candidatefiles: |
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595 # Discard "merged" markers when moving away from a merge state |
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596 if s.merged: |
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597 source = self.copymap.get(f) |
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598 if source: |
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599 copies[f] = source |
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600 self.reset_state( |
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601 f, |
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602 wc_tracked=True, |
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603 p1_tracked=True, |
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604 possibly_dirty=True, |
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605 ) |
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606 # Also fix up otherparent markers |
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607 elif s.from_p2: |
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608 source = self.copymap.get(f) |
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609 if source: |
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610 copies[f] = source |
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611 self.reset_state( |
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612 f, |
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613 p1_tracked=False, |
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614 wc_tracked=True, |
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615 ) |
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616 return copies |
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617 |
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618 def parents(self): |
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619 if not self._parents: |
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620 if self._use_dirstate_v2: |
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621 self._parents = self.docket.parents |
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622 else: |
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623 read_len = self._nodelen * 2 |
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624 st = self._readdirstatefile(read_len) |
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625 l = len(st) |
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626 if l == read_len: |
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627 self._parents = ( |
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628 st[: self._nodelen], |
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629 st[self._nodelen : 2 * self._nodelen], |
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630 ) |
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631 elif l == 0: |
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632 self._parents = ( |
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633 self._nodeconstants.nullid, |
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634 self._nodeconstants.nullid, |
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635 ) |
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636 else: |
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637 raise error.Abort( |
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638 _(b'working directory state appears damaged!') |
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639 ) |
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640 |
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641 return self._parents |
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642 |
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643 ### disk interaction |
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644 |
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645 @propertycache |
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646 def identity(self): |
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647 self._map |
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648 return self.identity |
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649 |
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650 def write(self, tr, st, now): |
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651 if not self._use_dirstate_v2: |
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652 p1, p2 = self.parents() |
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653 packed = self._map.write_v1(p1, p2, now) |
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654 st.write(packed) |
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655 st.close() |
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656 self._dirtyparents = False |
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657 return |
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658 |
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659 # We can only append to an existing data file if there is one |
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660 can_append = self.docket.uuid is not None |
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661 packed, meta, append = self._map.write_v2(now, can_append) |
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662 if append: |
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663 docket = self.docket |
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664 data_filename = docket.data_filename() |
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665 if tr: |
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666 tr.add(data_filename, docket.data_size) |
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667 with self._opener(data_filename, b'r+b') as fp: |
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668 fp.seek(docket.data_size) |
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669 assert fp.tell() == docket.data_size |
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670 written = fp.write(packed) |
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671 if written is not None: # py2 may return None |
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672 assert written == len(packed), (written, len(packed)) |
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673 docket.data_size += len(packed) |
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674 docket.parents = self.parents() |
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675 docket.tree_metadata = meta |
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676 st.write(docket.serialize()) |
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677 st.close() |
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678 else: |
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679 old_docket = self.docket |
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680 new_docket = docketmod.DirstateDocket.with_new_uuid( |
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681 self.parents(), len(packed), meta |
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682 ) |
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683 data_filename = new_docket.data_filename() |
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684 if tr: |
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685 tr.add(data_filename, 0) |
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686 self._opener.write(data_filename, packed) |
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687 # Write the new docket after the new data file has been |
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688 # written. Because `st` was opened with `atomictemp=True`, |
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689 # the actual `.hg/dirstate` file is only affected on close. |
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690 st.write(new_docket.serialize()) |
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691 st.close() |
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692 # Remove the old data file after the new docket pointing to |
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693 # the new data file was written. |
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694 if old_docket.uuid: |
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695 data_filename = old_docket.data_filename() |
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696 unlink = lambda _tr=None: self._opener.unlink(data_filename) |
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697 if tr: |
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698 category = b"dirstate-v2-clean-" + old_docket.uuid |
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699 tr.addpostclose(category, unlink) |
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700 else: |
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701 unlink() |
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702 self._docket = new_docket |
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703 # Reload from the newly-written file |
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704 util.clearcachedproperty(self, b"_map") |
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705 self._dirtyparents = False |
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706 |
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707 def _opendirstatefile(self): |
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708 fp, mode = txnutil.trypending( |
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709 self._root, self._opener, self._filename |
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710 ) |
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711 if self._pendingmode is not None and self._pendingmode != mode: |
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712 fp.close() |
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713 raise error.Abort( |
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714 _(b'working directory state may be changed parallelly') |
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715 ) |
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716 self._pendingmode = mode |
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717 return fp |
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718 |
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719 def _readdirstatefile(self, size=-1): |
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720 try: |
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721 with self._opendirstatefile() as fp: |
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722 return fp.read(size) |
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723 except IOError as err: |
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724 if err.errno != errno.ENOENT: |
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725 raise |
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726 # File doesn't exist, so the current state is empty |
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727 return b'' |
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728 |
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729 ### code related to maintaining and accessing "extra" property |
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730 # (e.g. "has_dir") |
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731 |
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732 @propertycache |
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733 def filefoldmap(self): |
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734 """Returns a dictionary mapping normalized case paths to their |
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735 non-normalized versions. |
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736 """ |
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737 return self._map.filefoldmapasdict() |
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738 |
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739 def hastrackeddir(self, d): |
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740 return self._map.hastrackeddir(d) |
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741 |
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742 def hasdir(self, d): |
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743 return self._map.hasdir(d) |
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744 |
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745 @propertycache |
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746 def dirfoldmap(self): |
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747 f = {} |
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748 normcase = util.normcase |
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749 for name in self._map.tracked_dirs(): |
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750 f[normcase(name)] = name |
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751 return f |
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752 |
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753 ### code related to manipulation of entries and copy-sources |
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754 |
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755 def set_possibly_dirty(self, filename): |
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756 """record that the current state of the file on disk is unknown""" |
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757 entry = self[filename] |
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758 entry.set_possibly_dirty() |
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759 self._map.set_dirstate_item(filename, entry) |
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760 |
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761 def set_clean(self, filename, mode, size, mtime): |
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762 """mark a file as back to a clean state""" |
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763 entry = self[filename] |
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764 mtime = mtime & rangemask |
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765 size = size & rangemask |
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766 entry.set_clean(mode, size, mtime) |
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767 self._map.set_dirstate_item(filename, entry) |
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768 self._map.copymap().pop(filename, None) |
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769 |
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770 def __setitem__(self, key, value): |
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771 assert isinstance(value, DirstateItem) |
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772 self._map.set_dirstate_item(key, value) |
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773 |
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774 def reset_state( |
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775 self, |
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776 filename, |
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777 wc_tracked=False, |
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778 p1_tracked=False, |
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779 p2_tracked=False, |
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780 merged=False, |
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781 clean_p1=False, |
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782 clean_p2=False, |
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783 possibly_dirty=False, |
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784 parentfiledata=None, |
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785 ): |
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786 """Set a entry to a given state, disregarding all previous state |
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787 |
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788 This is to be used by the part of the dirstate API dedicated to |
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789 adjusting the dirstate after a update/merge. |
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790 |
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791 note: calling this might result to no entry existing at all if the |
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792 dirstate map does not see any point at having one for this file |
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793 anymore. |
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794 """ |
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795 if merged and (clean_p1 or clean_p2): |
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796 msg = ( |
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797 b'`merged` argument incompatible with `clean_p1`/`clean_p2`' |
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798 ) |
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799 raise error.ProgrammingError(msg) |
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800 # copy information are now outdated |
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801 # (maybe new information should be in directly passed to this function) |
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802 self.copymap.pop(filename, None) |
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803 |
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804 if not (p1_tracked or p2_tracked or wc_tracked): |
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805 self._map.drop_item_and_copy_source(filename) |
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806 elif merged: |
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807 # XXX might be merged and removed ? |
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808 entry = self.get(filename) |
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809 if entry is not None and entry.tracked: |
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810 # XXX mostly replicate dirstate.other parent. We should get |
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811 # the higher layer to pass us more reliable data where `merged` |
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812 # actually mean merged. Dropping the else clause will show |
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813 # failure in `test-graft.t` |
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814 self.addfile(filename, merged=True) |
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815 else: |
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816 self.addfile(filename, from_p2=True) |
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817 elif not (p1_tracked or p2_tracked) and wc_tracked: |
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818 self.addfile( |
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819 filename, added=True, possibly_dirty=possibly_dirty |
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820 ) |
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821 elif (p1_tracked or p2_tracked) and not wc_tracked: |
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822 # XXX might be merged and removed ? |
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823 self[filename] = DirstateItem.from_v1_data(b'r', 0, 0, 0) |
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824 elif clean_p2 and wc_tracked: |
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825 if p1_tracked or self.get(filename) is not None: |
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826 # XXX the `self.get` call is catching some case in |
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827 # `test-merge-remove.t` where the file is tracked in p1, the |
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828 # p1_tracked argument is False. |
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829 # |
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830 # In addition, this seems to be a case where the file is marked |
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831 # as merged without actually being the result of a merge |
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832 # action. So thing are not ideal here. |
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833 self.addfile(filename, merged=True) |
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834 else: |
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835 self.addfile(filename, from_p2=True) |
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836 elif not p1_tracked and p2_tracked and wc_tracked: |
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837 self.addfile( |
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838 filename, from_p2=True, possibly_dirty=possibly_dirty |
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839 ) |
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840 elif possibly_dirty: |
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841 self.addfile(filename, possibly_dirty=possibly_dirty) |
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842 elif wc_tracked: |
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843 # this is a "normal" file |
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844 if parentfiledata is None: |
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845 msg = b'failed to pass parentfiledata for a normal file: %s' |
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846 msg %= filename |
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847 raise error.ProgrammingError(msg) |
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848 mode, size, mtime = parentfiledata |
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849 self.addfile(filename, mode=mode, size=size, mtime=mtime) |
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850 else: |
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851 assert False, 'unreachable' |
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852 |
47990
0d2a404f1932
dirstate: introduce a set_tracked method on "map" and "item"
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853 def set_tracked(self, filename): |
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854 new = False |
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855 entry = self.get(filename) |
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856 if entry is None: |
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857 self.addfile(filename, added=True) |
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858 new = True |
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859 elif not entry.tracked: |
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860 entry.set_tracked() |
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861 self._map.set_dirstate_item(filename, entry) |
47990
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862 new = True |
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863 else: |
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864 # XXX This is probably overkill for more case, but we need this to |
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865 # fully replace the `normallookup` call with `set_tracked` one. |
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866 # Consider smoothing this in the future. |
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867 self.set_possibly_dirty(filename) |
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868 return new |
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869 |
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870 def set_untracked(self, f): |
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871 """Mark a file as no longer tracked in the dirstate map""" |
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872 # in merge is only trigger more logic, so it "fine" to pass it. |
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873 # |
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874 # the inner rust dirstate map code need to be adjusted once the API |
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875 # for dirstate/dirstatemap/DirstateItem is a bit more settled |
47972
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876 entry = self.get(f) |
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877 if entry is None: |
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878 return False |
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879 else: |
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880 if entry.added: |
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881 self._map.drop_item_and_copy_source(f) |
47972
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882 else: |
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883 self._map.removefile(f, in_merge=True) |
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|
884 return True |
47890
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885 |
48123
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886 ### Legacy method we need to get rid of |
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|
887 |
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888 def addfile( |
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889 self, |
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890 f, |
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891 mode=0, |
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892 size=None, |
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893 mtime=None, |
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894 added=False, |
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895 merged=False, |
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896 from_p2=False, |
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897 possibly_dirty=False, |
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|
898 ): |
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|
899 if added: |
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|
900 assert not possibly_dirty |
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901 assert not from_p2 |
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902 item = DirstateItem.new_added() |
771c90807a2b
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|
903 elif merged: |
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|
904 assert not possibly_dirty |
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905 assert not from_p2 |
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|
906 item = DirstateItem.new_merged() |
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907 elif from_p2: |
771c90807a2b
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diff
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|
908 assert not possibly_dirty |
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|
909 item = DirstateItem.new_from_p2() |
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910 elif possibly_dirty: |
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|
911 item = DirstateItem.new_possibly_dirty() |
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|
912 else: |
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diff
changeset
|
913 assert size is not None |
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914 assert mtime is not None |
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915 size = size & rangemask |
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changeset
|
916 mtime = mtime & rangemask |
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|
917 item = DirstateItem.new_normal(mode, size, mtime) |
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918 self._map.addfile(f, item) |
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|
919 if added: |
771c90807a2b
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|
920 self.copymap.pop(f, None) |
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|
921 |
42755
749ef8c31187
rust-dirstate: call rust dirstatemap from Python
Raphaël Gomès <rgomes@octobus.net>
parents:
42747
diff
changeset
|
922 def removefile(self, *args, **kwargs): |
48121
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|
923 return self._map.removefile(*args, **kwargs) |