Mercurial > hg
annotate mercurial/dirstatemap.py @ 47890:3853e6ee160d
dirstatemap: replace `removefile` by an explicit `entry.set_untracked()`
All the other caller goes through `reset_state`, so we can safely have an
explicit method on `DirstateItem` object.
This means that all the logic to preserve the previous state (from p2, merged,
etc) is now properly encapsulated within the DirstateItem. This pave the way to
using different storage for these information.
Differential Revision: https://phab.mercurial-scm.org/D11315
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Fri, 20 Aug 2021 11:27:01 +0200 |
parents | 460e479be66e |
children | 0b35bc0b8636 |
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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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 DirstateItem = parsers.DirstateItem |
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31 |
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32 |
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33 # a special value used internally for `size` if the file come from the other parent |
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34 FROM_P2 = -2 |
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35 |
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36 # a special value used internally for `size` if the file is modified/merged/added |
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37 NONNORMAL = -1 |
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38 |
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39 # a special value used internally for `time` if the time is ambigeous |
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40 AMBIGUOUS_TIME = -1 |
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41 |
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42 rangemask = 0x7FFFFFFF |
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43 |
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44 |
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45 class dirstatemap(object): |
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46 """Map encapsulating the dirstate's contents. |
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47 |
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48 The dirstate contains the following state: |
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49 |
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50 - `identity` is the identity of the dirstate file, which can be used to |
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51 detect when changes have occurred to the dirstate file. |
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52 |
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53 - `parents` is a pair containing the parents of the working copy. The |
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54 parents are updated by calling `setparents`. |
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55 |
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56 - the state map maps filenames to tuples of (state, mode, size, mtime), |
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57 where state is a single character representing 'normal', 'added', |
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58 'removed', or 'merged'. It is read by treating the dirstate as a |
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59 dict. File state is updated by calling the `addfile`, `removefile` and |
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60 `dropfile` methods. |
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61 |
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62 - `copymap` maps destination filenames to their source filename. |
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63 |
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64 The dirstate also provides the following views onto the state: |
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65 |
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66 - `nonnormalset` is a set of the filenames that have state other |
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67 than 'normal', or are normal but have an mtime of -1 ('normallookup'). |
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68 |
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69 - `otherparentset` is a set of the filenames that are marked as coming |
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70 from the second parent when the dirstate is currently being merged. |
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71 |
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72 - `filefoldmap` is a dict mapping normalized filenames to the denormalized |
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73 form that they appear as in the dirstate. |
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74 |
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75 - `dirfoldmap` is a dict mapping normalized directory names to the |
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76 denormalized form that they appear as in the dirstate. |
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77 """ |
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78 |
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79 def __init__(self, ui, opener, root, nodeconstants, use_dirstate_v2): |
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80 self._ui = ui |
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81 self._opener = opener |
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82 self._root = root |
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83 self._filename = b'dirstate' |
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84 self._nodelen = 20 |
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85 self._nodeconstants = nodeconstants |
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86 assert ( |
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87 not use_dirstate_v2 |
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88 ), "should have detected unsupported requirement" |
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89 |
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90 self._parents = None |
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91 self._dirtyparents = False |
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92 |
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93 # for consistent view between _pl() and _read() invocations |
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94 self._pendingmode = None |
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95 |
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96 @propertycache |
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97 def _map(self): |
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98 self._map = {} |
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99 self.read() |
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100 return self._map |
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101 |
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102 @propertycache |
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103 def copymap(self): |
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104 self.copymap = {} |
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105 self._map |
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106 return self.copymap |
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107 |
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108 def clear(self): |
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109 self._map.clear() |
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110 self.copymap.clear() |
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111 self.setparents(self._nodeconstants.nullid, self._nodeconstants.nullid) |
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112 util.clearcachedproperty(self, b"_dirs") |
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113 util.clearcachedproperty(self, b"_alldirs") |
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114 util.clearcachedproperty(self, b"filefoldmap") |
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115 util.clearcachedproperty(self, b"dirfoldmap") |
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116 util.clearcachedproperty(self, b"nonnormalset") |
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117 util.clearcachedproperty(self, b"otherparentset") |
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118 |
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119 def items(self): |
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120 return pycompat.iteritems(self._map) |
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121 |
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122 # forward for python2,3 compat |
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123 iteritems = items |
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124 |
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125 debug_iter = items |
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126 |
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127 def __len__(self): |
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128 return len(self._map) |
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129 |
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130 def __iter__(self): |
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131 return iter(self._map) |
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132 |
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133 def get(self, key, default=None): |
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134 return self._map.get(key, default) |
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135 |
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136 def __contains__(self, key): |
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137 return key in self._map |
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138 |
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139 def __getitem__(self, key): |
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140 return self._map[key] |
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141 |
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142 def keys(self): |
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143 return self._map.keys() |
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144 |
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145 def preload(self): |
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146 """Loads the underlying data, if it's not already loaded""" |
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147 self._map |
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148 |
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149 def _dirs_incr(self, filename, old_entry=None): |
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150 """incremente the dirstate counter if applicable""" |
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151 if ( |
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152 old_entry is None or old_entry.removed |
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153 ) and "_dirs" in self.__dict__: |
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154 self._dirs.addpath(filename) |
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155 if old_entry is None and "_alldirs" in self.__dict__: |
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156 self._alldirs.addpath(filename) |
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157 |
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158 def _dirs_decr(self, filename, old_entry=None, remove_variant=False): |
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159 """decremente the dirstate counter if applicable""" |
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160 if old_entry is not None: |
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161 if "_dirs" in self.__dict__ and not old_entry.removed: |
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162 self._dirs.delpath(filename) |
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163 if "_alldirs" in self.__dict__ and not remove_variant: |
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164 self._alldirs.delpath(filename) |
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165 elif remove_variant and "_alldirs" in self.__dict__: |
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166 self._alldirs.addpath(filename) |
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167 if "filefoldmap" in self.__dict__: |
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168 normed = util.normcase(filename) |
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169 self.filefoldmap.pop(normed, None) |
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170 |
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171 def set_possibly_dirty(self, filename): |
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172 """record that the current state of the file on disk is unknown""" |
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173 self[filename].set_possibly_dirty() |
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174 |
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175 def addfile( |
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176 self, |
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177 f, |
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178 mode=0, |
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179 size=None, |
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180 mtime=None, |
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181 added=False, |
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182 merged=False, |
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183 from_p2=False, |
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184 possibly_dirty=False, |
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185 ): |
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186 """Add a tracked file to the dirstate.""" |
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187 if added: |
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188 assert not merged |
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189 assert not possibly_dirty |
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190 assert not from_p2 |
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191 state = b'a' |
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192 size = NONNORMAL |
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193 mtime = AMBIGUOUS_TIME |
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194 elif merged: |
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195 assert not possibly_dirty |
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196 assert not from_p2 |
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197 state = b'm' |
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198 size = FROM_P2 |
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199 mtime = AMBIGUOUS_TIME |
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200 elif from_p2: |
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201 assert not possibly_dirty |
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202 state = b'n' |
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203 size = FROM_P2 |
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204 mtime = AMBIGUOUS_TIME |
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205 elif possibly_dirty: |
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206 state = b'n' |
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207 size = NONNORMAL |
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208 mtime = AMBIGUOUS_TIME |
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209 else: |
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210 assert size != FROM_P2 |
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211 assert size != NONNORMAL |
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212 assert size is not None |
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213 assert mtime is not None |
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214 |
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215 state = b'n' |
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216 size = size & rangemask |
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217 mtime = mtime & rangemask |
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218 assert state is not None |
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219 assert size is not None |
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220 assert mtime is not None |
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221 old_entry = self.get(f) |
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222 self._dirs_incr(f, old_entry) |
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223 e = self._map[f] = DirstateItem(state, mode, size, mtime) |
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224 if e.dm_nonnormal: |
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225 self.nonnormalset.add(f) |
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226 if e.dm_otherparent: |
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227 self.otherparentset.add(f) |
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228 |
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229 def reset_state( |
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230 self, |
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231 filename, |
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232 wc_tracked, |
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233 p1_tracked, |
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234 p2_tracked=False, |
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235 merged=False, |
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236 clean_p1=False, |
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237 clean_p2=False, |
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238 possibly_dirty=False, |
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239 parentfiledata=None, |
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240 ): |
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241 """Set a entry to a given state, diregarding all previous state |
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242 |
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243 This is to be used by the part of the dirstate API dedicated to |
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244 adjusting the dirstate after a update/merge. |
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245 |
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246 note: calling this might result to no entry existing at all if the |
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247 dirstate map does not see any point at having one for this file |
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248 anymore. |
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249 """ |
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250 if merged and (clean_p1 or clean_p2): |
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251 msg = b'`merged` argument incompatible with `clean_p1`/`clean_p2`' |
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252 raise error.ProgrammingError(msg) |
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253 # copy information are now outdated |
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254 # (maybe new information should be in directly passed to this function) |
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255 self.copymap.pop(filename, None) |
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256 |
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257 if not (p1_tracked or p2_tracked or wc_tracked): |
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258 self.dropfile(filename) |
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259 elif merged: |
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260 # XXX might be merged and removed ? |
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261 entry = self.get(filename) |
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262 if entry is not None and entry.tracked: |
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263 # XXX mostly replicate dirstate.other parent. We should get |
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264 # the higher layer to pass us more reliable data where `merged` |
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265 # actually mean merged. Dropping the else clause will show |
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266 # failure in `test-graft.t` |
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267 self.addfile(filename, merged=True) |
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268 else: |
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269 self.addfile(filename, from_p2=True) |
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270 elif not (p1_tracked or p2_tracked) and wc_tracked: |
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271 self.addfile(filename, added=True, possibly_dirty=possibly_dirty) |
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272 elif (p1_tracked or p2_tracked) and not wc_tracked: |
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273 # XXX might be merged and removed ? |
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274 old_entry = self._map.get(filename) |
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275 self._dirs_decr(filename, old_entry=old_entry, remove_variant=True) |
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276 self._map[filename] = DirstateItem(b'r', 0, 0, 0) |
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277 self.nonnormalset.add(filename) |
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278 elif clean_p2 and wc_tracked: |
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279 if p1_tracked or self.get(filename) is not None: |
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280 # XXX the `self.get` call is catching some case in |
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281 # `test-merge-remove.t` where the file is tracked in p1, the |
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282 # p1_tracked argument is False. |
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283 # |
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284 # In addition, this seems to be a case where the file is marked |
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285 # as merged without actually being the result of a merge |
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286 # action. So thing are not ideal here. |
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287 self.addfile(filename, merged=True) |
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288 else: |
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289 self.addfile(filename, from_p2=True) |
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290 elif not p1_tracked and p2_tracked and wc_tracked: |
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291 self.addfile(filename, from_p2=True, possibly_dirty=possibly_dirty) |
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292 elif possibly_dirty: |
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293 self.addfile(filename, possibly_dirty=possibly_dirty) |
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294 elif wc_tracked: |
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295 # this is a "normal" file |
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296 if parentfiledata is None: |
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297 msg = b'failed to pass parentfiledata for a normal file: %s' |
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298 msg %= filename |
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299 raise error.ProgrammingError(msg) |
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300 mode, size, mtime = parentfiledata |
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301 self.addfile(filename, mode=mode, size=size, mtime=mtime) |
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302 self.nonnormalset.discard(filename) |
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303 else: |
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304 assert False, 'unreachable' |
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305 |
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306 def set_untracked(self, f): |
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307 """Mark a file as no longer tracked in the dirstate map""" |
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308 entry = self[f] |
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309 self._dirs_decr(f, old_entry=entry, remove_variant=True) |
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310 if entry.from_p2: |
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311 self.otherparentset.add(f) |
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312 elif not entry.merged: |
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313 self.copymap.pop(f, None) |
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314 entry.set_untracked() |
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315 self.nonnormalset.add(f) |
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316 |
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317 def dropfile(self, f): |
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318 """ |
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319 Remove a file from the dirstate. Returns True if the file was |
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320 previously recorded. |
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321 """ |
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322 old_entry = self._map.pop(f, None) |
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323 self._dirs_decr(f, old_entry=old_entry) |
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324 self.nonnormalset.discard(f) |
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325 return old_entry is not None |
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326 |
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327 def clearambiguoustimes(self, files, now): |
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328 for f in files: |
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329 e = self.get(f) |
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330 if e is not None and e.need_delay(now): |
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331 e.set_possibly_dirty() |
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332 self.nonnormalset.add(f) |
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333 |
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334 def nonnormalentries(self): |
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335 '''Compute the nonnormal dirstate entries from the dmap''' |
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336 try: |
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337 return parsers.nonnormalotherparententries(self._map) |
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338 except AttributeError: |
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339 nonnorm = set() |
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340 otherparent = set() |
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341 for fname, e in pycompat.iteritems(self._map): |
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342 if e.dm_nonnormal: |
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343 nonnorm.add(fname) |
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344 if e.from_p2: |
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345 otherparent.add(fname) |
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346 return nonnorm, otherparent |
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347 |
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348 @propertycache |
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349 def filefoldmap(self): |
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350 """Returns a dictionary mapping normalized case paths to their |
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351 non-normalized versions. |
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352 """ |
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353 try: |
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354 makefilefoldmap = parsers.make_file_foldmap |
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355 except AttributeError: |
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356 pass |
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357 else: |
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358 return makefilefoldmap( |
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359 self._map, util.normcasespec, util.normcasefallback |
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360 ) |
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361 |
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362 f = {} |
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363 normcase = util.normcase |
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364 for name, s in pycompat.iteritems(self._map): |
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365 if not s.removed: |
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366 f[normcase(name)] = name |
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367 f[b'.'] = b'.' # prevents useless util.fspath() invocation |
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368 return f |
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369 |
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370 def hastrackeddir(self, d): |
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371 """ |
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372 Returns True if the dirstate contains a tracked (not removed) file |
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373 in this directory. |
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374 """ |
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375 return d in self._dirs |
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376 |
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377 def hasdir(self, d): |
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378 """ |
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379 Returns True if the dirstate contains a file (tracked or removed) |
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380 in this directory. |
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381 """ |
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382 return d in self._alldirs |
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383 |
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|
384 @propertycache |
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385 def _dirs(self): |
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386 return pathutil.dirs(self._map, b'r') |
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387 |
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388 @propertycache |
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389 def _alldirs(self): |
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390 return pathutil.dirs(self._map) |
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391 |
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392 def _opendirstatefile(self): |
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393 fp, mode = txnutil.trypending(self._root, self._opener, self._filename) |
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394 if self._pendingmode is not None and self._pendingmode != mode: |
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395 fp.close() |
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396 raise error.Abort( |
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397 _(b'working directory state may be changed parallelly') |
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398 ) |
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399 self._pendingmode = mode |
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400 return fp |
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|
401 |
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402 def parents(self): |
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403 if not self._parents: |
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404 try: |
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405 fp = self._opendirstatefile() |
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406 st = fp.read(2 * self._nodelen) |
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407 fp.close() |
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408 except IOError as err: |
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409 if err.errno != errno.ENOENT: |
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|
410 raise |
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|
411 # File doesn't exist, so the current state is empty |
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412 st = b'' |
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413 |
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414 l = len(st) |
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415 if l == self._nodelen * 2: |
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|
416 self._parents = ( |
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417 st[: self._nodelen], |
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418 st[self._nodelen : 2 * self._nodelen], |
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|
419 ) |
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changeset
|
420 elif l == 0: |
47012
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46819
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changeset
|
421 self._parents = ( |
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|
422 self._nodeconstants.nullid, |
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|
423 self._nodeconstants.nullid, |
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|
424 ) |
34339
ec769bba34d3
dirstate: move parents source of truth to dirstatemap
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changeset
|
425 else: |
43076
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changeset
|
426 raise error.Abort( |
43117
8ff1ecfadcd1
cleanup: join string literals that are already on one line
Martin von Zweigbergk <martinvonz@google.com>
parents:
43106
diff
changeset
|
427 _(b'working directory state appears damaged!') |
43076
2372284d9457
formatting: blacken the codebase
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changeset
|
428 ) |
34339
ec769bba34d3
dirstate: move parents source of truth to dirstatemap
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diff
changeset
|
429 |
ec769bba34d3
dirstate: move parents source of truth to dirstatemap
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diff
changeset
|
430 return self._parents |
ec769bba34d3
dirstate: move parents source of truth to dirstatemap
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parents:
34338
diff
changeset
|
431 |
ec769bba34d3
dirstate: move parents source of truth to dirstatemap
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parents:
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diff
changeset
|
432 def setparents(self, p1, p2): |
ec769bba34d3
dirstate: move parents source of truth to dirstatemap
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parents:
34338
diff
changeset
|
433 self._parents = (p1, p2) |
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dirstate: move parents source of truth to dirstatemap
Durham Goode <durham@fb.com>
parents:
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diff
changeset
|
434 self._dirtyparents = True |
34672
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dirstate: move _read into dirstatemap
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parents:
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diff
changeset
|
435 |
e159f217230e
dirstate: move _read into dirstatemap
Durham Goode <durham@fb.com>
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diff
changeset
|
436 def read(self): |
34675
c6ef9a2498a5
dirstate: move identity to dirstatemap
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diff
changeset
|
437 # ignore HG_PENDING because identity is used only for writing |
c6ef9a2498a5
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diff
changeset
|
438 self.identity = util.filestat.frompath( |
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formatting: blacken the codebase
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changeset
|
439 self._opener.join(self._filename) |
2372284d9457
formatting: blacken the codebase
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parents:
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|
440 ) |
34675
c6ef9a2498a5
dirstate: move identity to dirstatemap
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diff
changeset
|
441 |
34672
e159f217230e
dirstate: move _read into dirstatemap
Durham Goode <durham@fb.com>
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34480
diff
changeset
|
442 try: |
e159f217230e
dirstate: move _read into dirstatemap
Durham Goode <durham@fb.com>
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diff
changeset
|
443 fp = self._opendirstatefile() |
e159f217230e
dirstate: move _read into dirstatemap
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parents:
34480
diff
changeset
|
444 try: |
e159f217230e
dirstate: move _read into dirstatemap
Durham Goode <durham@fb.com>
parents:
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diff
changeset
|
445 st = fp.read() |
e159f217230e
dirstate: move _read into dirstatemap
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parents:
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diff
changeset
|
446 finally: |
e159f217230e
dirstate: move _read into dirstatemap
Durham Goode <durham@fb.com>
parents:
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diff
changeset
|
447 fp.close() |
e159f217230e
dirstate: move _read into dirstatemap
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parents:
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diff
changeset
|
448 except IOError as err: |
e159f217230e
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parents:
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diff
changeset
|
449 if err.errno != errno.ENOENT: |
e159f217230e
dirstate: move _read into dirstatemap
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parents:
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diff
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|
450 raise |
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diff
changeset
|
451 return |
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34480
diff
changeset
|
452 if not st: |
e159f217230e
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diff
changeset
|
453 return |
e159f217230e
dirstate: move _read into dirstatemap
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parents:
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diff
changeset
|
454 |
43077
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formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
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diff
changeset
|
455 if util.safehasattr(parsers, b'dict_new_presized'): |
34672
e159f217230e
dirstate: move _read into dirstatemap
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parents:
34480
diff
changeset
|
456 # Make an estimate of the number of files in the dirstate based on |
45243
ad7006830106
dirstate: restore original estimation and update comment
Joerg Sonnenberger <joerg@bec.de>
parents:
45241
diff
changeset
|
457 # its size. This trades wasting some memory for avoiding costly |
ad7006830106
dirstate: restore original estimation and update comment
Joerg Sonnenberger <joerg@bec.de>
parents:
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|
458 # resizes. Each entry have a prefix of 17 bytes followed by one or |
ad7006830106
dirstate: restore original estimation and update comment
Joerg Sonnenberger <joerg@bec.de>
parents:
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changeset
|
459 # two path names. Studies on various large-scale real-world repositories |
ad7006830106
dirstate: restore original estimation and update comment
Joerg Sonnenberger <joerg@bec.de>
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diff
changeset
|
460 # found 54 bytes a reasonable upper limit for the average path names. |
ad7006830106
dirstate: restore original estimation and update comment
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parents:
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diff
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461 # Copy entries are ignored for the sake of this estimate. |
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parents:
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diff
changeset
|
462 self._map = parsers.dict_new_presized(len(st) // 71) |
34672
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changeset
|
463 |
e159f217230e
dirstate: move _read into dirstatemap
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diff
changeset
|
464 # Python's garbage collector triggers a GC each time a certain number |
e159f217230e
dirstate: move _read into dirstatemap
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diff
changeset
|
465 # of container objects (the number being defined by |
e159f217230e
dirstate: move _read into dirstatemap
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parents:
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diff
changeset
|
466 # gc.get_threshold()) are allocated. parse_dirstate creates a tuple |
e159f217230e
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parents:
34480
diff
changeset
|
467 # for each file in the dirstate. The C version then immediately marks |
e159f217230e
dirstate: move _read into dirstatemap
Durham Goode <durham@fb.com>
parents:
34480
diff
changeset
|
468 # them as not to be tracked by the collector. However, this has no |
e159f217230e
dirstate: move _read into dirstatemap
Durham Goode <durham@fb.com>
parents:
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changeset
|
469 # effect on when GCs are triggered, only on what objects the GC looks |
e159f217230e
dirstate: move _read into dirstatemap
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parents:
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diff
changeset
|
470 # into. This means that O(number of files) GCs are unavoidable. |
e159f217230e
dirstate: move _read into dirstatemap
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parents:
34480
diff
changeset
|
471 # Depending on when in the process's lifetime the dirstate is parsed, |
e159f217230e
dirstate: move _read into dirstatemap
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parents:
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diff
changeset
|
472 # this can get very expensive. As a workaround, disable GC while |
e159f217230e
dirstate: move _read into dirstatemap
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diff
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|
473 # parsing the dirstate. |
e159f217230e
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34480
diff
changeset
|
474 # |
e159f217230e
dirstate: move _read into dirstatemap
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parents:
34480
diff
changeset
|
475 # (we cannot decorate the function directly since it is in a C module) |
42747
760a7851e9ba
rust-parsers: move parser bindings to their own file and Python module
Raphaël Gomès <rgomes@octobus.net>
parents:
42456
diff
changeset
|
476 parse_dirstate = util.nogc(parsers.parse_dirstate) |
34672
e159f217230e
dirstate: move _read into dirstatemap
Durham Goode <durham@fb.com>
parents:
34480
diff
changeset
|
477 p = parse_dirstate(self._map, self.copymap, st) |
e159f217230e
dirstate: move _read into dirstatemap
Durham Goode <durham@fb.com>
parents:
34480
diff
changeset
|
478 if not self._dirtyparents: |
e159f217230e
dirstate: move _read into dirstatemap
Durham Goode <durham@fb.com>
parents:
34480
diff
changeset
|
479 self.setparents(*p) |
34673
e2214632c3a2
dirstate: move write into dirstatemap
Durham Goode <durham@fb.com>
parents:
34672
diff
changeset
|
480 |
34935
ffeea2406276
dirstate: remove excess attribute lookups for dirstate.status (issue5714)
Durham Goode <durham@fb.com>
parents:
34934
diff
changeset
|
481 # Avoid excess attribute lookups by fast pathing certain checks |
ffeea2406276
dirstate: remove excess attribute lookups for dirstate.status (issue5714)
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parents:
34934
diff
changeset
|
482 self.__contains__ = self._map.__contains__ |
ffeea2406276
dirstate: remove excess attribute lookups for dirstate.status (issue5714)
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parents:
34934
diff
changeset
|
483 self.__getitem__ = self._map.__getitem__ |
ffeea2406276
dirstate: remove excess attribute lookups for dirstate.status (issue5714)
Durham Goode <durham@fb.com>
parents:
34934
diff
changeset
|
484 self.get = self._map.get |
ffeea2406276
dirstate: remove excess attribute lookups for dirstate.status (issue5714)
Durham Goode <durham@fb.com>
parents:
34934
diff
changeset
|
485 |
47674
ff97e793ed36
dirstate-v2: Introduce a docket file
Simon Sapin <simon.sapin@octobus.net>
parents:
47672
diff
changeset
|
486 def write(self, _tr, st, now): |
43076
2372284d9457
formatting: blacken the codebase
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parents:
42927
diff
changeset
|
487 st.write( |
2372284d9457
formatting: blacken the codebase
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parents:
42927
diff
changeset
|
488 parsers.pack_dirstate(self._map, self.copymap, self.parents(), now) |
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42927
diff
changeset
|
489 ) |
34673
e2214632c3a2
dirstate: move write into dirstatemap
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parents:
34672
diff
changeset
|
490 st.close() |
e2214632c3a2
dirstate: move write into dirstatemap
Durham Goode <durham@fb.com>
parents:
34672
diff
changeset
|
491 self._dirtyparents = False |
34674
60927b19ed65
dirstate: move nonnormal and otherparent sets to dirstatemap
Durham Goode <durham@fb.com>
parents:
34673
diff
changeset
|
492 self.nonnormalset, self.otherparentset = self.nonnormalentries() |
60927b19ed65
dirstate: move nonnormal and otherparent sets to dirstatemap
Durham Goode <durham@fb.com>
parents:
34673
diff
changeset
|
493 |
60927b19ed65
dirstate: move nonnormal and otherparent sets to dirstatemap
Durham Goode <durham@fb.com>
parents:
34673
diff
changeset
|
494 @propertycache |
60927b19ed65
dirstate: move nonnormal and otherparent sets to dirstatemap
Durham Goode <durham@fb.com>
parents:
34673
diff
changeset
|
495 def nonnormalset(self): |
60927b19ed65
dirstate: move nonnormal and otherparent sets to dirstatemap
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parents:
34673
diff
changeset
|
496 nonnorm, otherparents = self.nonnormalentries() |
60927b19ed65
dirstate: move nonnormal and otherparent sets to dirstatemap
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parents:
34673
diff
changeset
|
497 self.otherparentset = otherparents |
60927b19ed65
dirstate: move nonnormal and otherparent sets to dirstatemap
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parents:
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diff
changeset
|
498 return nonnorm |
60927b19ed65
dirstate: move nonnormal and otherparent sets to dirstatemap
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parents:
34673
diff
changeset
|
499 |
60927b19ed65
dirstate: move nonnormal and otherparent sets to dirstatemap
Durham Goode <durham@fb.com>
parents:
34673
diff
changeset
|
500 @propertycache |
60927b19ed65
dirstate: move nonnormal and otherparent sets to dirstatemap
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parents:
34673
diff
changeset
|
501 def otherparentset(self): |
60927b19ed65
dirstate: move nonnormal and otherparent sets to dirstatemap
Durham Goode <durham@fb.com>
parents:
34673
diff
changeset
|
502 nonnorm, otherparents = self.nonnormalentries() |
60927b19ed65
dirstate: move nonnormal and otherparent sets to dirstatemap
Durham Goode <durham@fb.com>
parents:
34673
diff
changeset
|
503 self.nonnormalset = nonnorm |
60927b19ed65
dirstate: move nonnormal and otherparent sets to dirstatemap
Durham Goode <durham@fb.com>
parents:
34673
diff
changeset
|
504 return otherparents |
60927b19ed65
dirstate: move nonnormal and otherparent sets to dirstatemap
Durham Goode <durham@fb.com>
parents:
34673
diff
changeset
|
505 |
47094
e061a1df32a8
dirstate-tree: Abstract "non-normal" and "other parent" sets
Simon Sapin <simon.sapin@octobus.net>
parents:
47012
diff
changeset
|
506 def non_normal_or_other_parent_paths(self): |
e061a1df32a8
dirstate-tree: Abstract "non-normal" and "other parent" sets
Simon Sapin <simon.sapin@octobus.net>
parents:
47012
diff
changeset
|
507 return self.nonnormalset.union(self.otherparentset) |
e061a1df32a8
dirstate-tree: Abstract "non-normal" and "other parent" sets
Simon Sapin <simon.sapin@octobus.net>
parents:
47012
diff
changeset
|
508 |
34675
c6ef9a2498a5
dirstate: move identity to dirstatemap
Durham Goode <durham@fb.com>
parents:
34674
diff
changeset
|
509 @propertycache |
c6ef9a2498a5
dirstate: move identity to dirstatemap
Durham Goode <durham@fb.com>
parents:
34674
diff
changeset
|
510 def identity(self): |
34934
6e66033f91cc
dirstate: avoid reading the map when possible (issue5713) (issue5717)
Durham Goode <durham@fb.com>
parents:
34933
diff
changeset
|
511 self._map |
34675
c6ef9a2498a5
dirstate: move identity to dirstatemap
Durham Goode <durham@fb.com>
parents:
34674
diff
changeset
|
512 return self.identity |
c6ef9a2498a5
dirstate: move identity to dirstatemap
Durham Goode <durham@fb.com>
parents:
34674
diff
changeset
|
513 |
34678
e8a89ed7ce96
dirstate: move the _dirfoldmap to dirstatemap
Durham Goode <durham@fb.com>
parents:
34677
diff
changeset
|
514 @propertycache |
e8a89ed7ce96
dirstate: move the _dirfoldmap to dirstatemap
Durham Goode <durham@fb.com>
parents:
34677
diff
changeset
|
515 def dirfoldmap(self): |
e8a89ed7ce96
dirstate: move the _dirfoldmap to dirstatemap
Durham Goode <durham@fb.com>
parents:
34677
diff
changeset
|
516 f = {} |
e8a89ed7ce96
dirstate: move the _dirfoldmap to dirstatemap
Durham Goode <durham@fb.com>
parents:
34677
diff
changeset
|
517 normcase = util.normcase |
35084
61888bd0b300
dirstate: add explicit methods for querying directories (API)
Mark Thomas <mbthomas@fb.com>
parents:
35083
diff
changeset
|
518 for name in self._dirs: |
34678
e8a89ed7ce96
dirstate: move the _dirfoldmap to dirstatemap
Durham Goode <durham@fb.com>
parents:
34677
diff
changeset
|
519 f[normcase(name)] = name |
e8a89ed7ce96
dirstate: move the _dirfoldmap to dirstatemap
Durham Goode <durham@fb.com>
parents:
34677
diff
changeset
|
520 return f |
42755
749ef8c31187
rust-dirstate: call rust dirstatemap from Python
Raphaël Gomès <rgomes@octobus.net>
parents:
42747
diff
changeset
|
521 |
749ef8c31187
rust-dirstate: call rust dirstatemap from Python
Raphaël Gomès <rgomes@octobus.net>
parents:
42747
diff
changeset
|
522 |
749ef8c31187
rust-dirstate: call rust dirstatemap from Python
Raphaël Gomès <rgomes@octobus.net>
parents:
42747
diff
changeset
|
523 if rustmod is not None: |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42927
diff
changeset
|
524 |
42755
749ef8c31187
rust-dirstate: call rust dirstatemap from Python
Raphaël Gomès <rgomes@octobus.net>
parents:
42747
diff
changeset
|
525 class dirstatemap(object): |
47280
1766130fe9ba
dirstate-v2: Change the on-disk format when the requirement is enabled
Simon Sapin <simon.sapin@octobus.net>
parents:
47277
diff
changeset
|
526 def __init__(self, ui, opener, root, nodeconstants, use_dirstate_v2): |
1766130fe9ba
dirstate-v2: Change the on-disk format when the requirement is enabled
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parents:
47277
diff
changeset
|
527 self._use_dirstate_v2 = use_dirstate_v2 |
46780
6266d19556ad
node: introduce nodeconstants class
Joerg Sonnenberger <joerg@bec.de>
parents:
45942
diff
changeset
|
528 self._nodeconstants = nodeconstants |
42755
749ef8c31187
rust-dirstate: call rust dirstatemap from Python
Raphaël Gomès <rgomes@octobus.net>
parents:
42747
diff
changeset
|
529 self._ui = ui |
749ef8c31187
rust-dirstate: call rust dirstatemap from Python
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parents:
42747
diff
changeset
|
530 self._opener = opener |
749ef8c31187
rust-dirstate: call rust dirstatemap from Python
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parents:
42747
diff
changeset
|
531 self._root = root |
43077
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formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
532 self._filename = b'dirstate' |
47280
1766130fe9ba
dirstate-v2: Change the on-disk format when the requirement is enabled
Simon Sapin <simon.sapin@octobus.net>
parents:
47277
diff
changeset
|
533 self._nodelen = 20 # Also update Rust code when changing this! |
42755
749ef8c31187
rust-dirstate: call rust dirstatemap from Python
Raphaël Gomès <rgomes@octobus.net>
parents:
42747
diff
changeset
|
534 self._parents = None |
749ef8c31187
rust-dirstate: call rust dirstatemap from Python
Raphaël Gomès <rgomes@octobus.net>
parents:
42747
diff
changeset
|
535 self._dirtyparents = False |
47674
ff97e793ed36
dirstate-v2: Introduce a docket file
Simon Sapin <simon.sapin@octobus.net>
parents:
47672
diff
changeset
|
536 self._docket = None |
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537 |
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538 # for consistent view between _pl() and _read() invocations |
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539 self._pendingmode = None |
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540 |
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541 self._use_dirstate_tree = self._ui.configbool( |
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542 b"experimental", |
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543 b"dirstate-tree.in-memory", |
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544 False, |
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545 ) |
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546 |
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547 def addfile( |
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548 self, |
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549 f, |
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550 mode=0, |
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551 size=None, |
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552 mtime=None, |
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553 added=False, |
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554 merged=False, |
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555 from_p2=False, |
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556 possibly_dirty=False, |
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557 ): |
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558 return self._rustmap.addfile( |
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559 f, |
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560 mode, |
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561 size, |
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562 mtime, |
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563 added, |
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564 merged, |
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565 from_p2, |
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566 possibly_dirty, |
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567 ) |
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568 |
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569 def reset_state( |
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570 self, |
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571 filename, |
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572 wc_tracked, |
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573 p1_tracked, |
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574 p2_tracked=False, |
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575 merged=False, |
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576 clean_p1=False, |
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577 clean_p2=False, |
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578 possibly_dirty=False, |
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579 parentfiledata=None, |
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580 ): |
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581 """Set a entry to a given state, disregarding all previous state |
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582 |
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583 This is to be used by the part of the dirstate API dedicated to |
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584 adjusting the dirstate after a update/merge. |
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585 |
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586 note: calling this might result to no entry existing at all if the |
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587 dirstate map does not see any point at having one for this file |
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588 anymore. |
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589 """ |
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590 if merged and (clean_p1 or clean_p2): |
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591 msg = ( |
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592 b'`merged` argument incompatible with `clean_p1`/`clean_p2`' |
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593 ) |
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594 raise error.ProgrammingError(msg) |
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595 # copy information are now outdated |
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596 # (maybe new information should be in directly passed to this function) |
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597 self.copymap.pop(filename, None) |
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598 |
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599 if not (p1_tracked or p2_tracked or wc_tracked): |
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600 self.dropfile(filename) |
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601 elif merged: |
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602 # XXX might be merged and removed ? |
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603 entry = self.get(filename) |
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604 if entry is not None and entry.tracked: |
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605 # XXX mostly replicate dirstate.other parent. We should get |
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606 # the higher layer to pass us more reliable data where `merged` |
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607 # actually mean merged. Dropping the else clause will show |
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608 # failure in `test-graft.t` |
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609 self.addfile(filename, merged=True) |
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610 else: |
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611 self.addfile(filename, from_p2=True) |
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612 elif not (p1_tracked or p2_tracked) and wc_tracked: |
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613 self.addfile( |
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614 filename, added=True, possibly_dirty=possibly_dirty |
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615 ) |
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616 elif (p1_tracked or p2_tracked) and not wc_tracked: |
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617 # XXX might be merged and removed ? |
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618 self[filename] = DirstateItem(b'r', 0, 0, 0) |
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619 self.nonnormalset.add(filename) |
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620 elif clean_p2 and wc_tracked: |
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621 if p1_tracked or self.get(filename) is not None: |
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622 # XXX the `self.get` call is catching some case in |
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623 # `test-merge-remove.t` where the file is tracked in p1, the |
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624 # p1_tracked argument is False. |
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625 # |
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626 # In addition, this seems to be a case where the file is marked |
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627 # as merged without actually being the result of a merge |
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628 # action. So thing are not ideal here. |
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629 self.addfile(filename, merged=True) |
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630 else: |
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631 self.addfile(filename, from_p2=True) |
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632 elif not p1_tracked and p2_tracked and wc_tracked: |
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633 self.addfile( |
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634 filename, from_p2=True, possibly_dirty=possibly_dirty |
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635 ) |
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636 elif possibly_dirty: |
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637 self.addfile(filename, possibly_dirty=possibly_dirty) |
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638 elif wc_tracked: |
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639 # this is a "normal" file |
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640 if parentfiledata is None: |
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641 msg = b'failed to pass parentfiledata for a normal file: %s' |
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642 msg %= filename |
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643 raise error.ProgrammingError(msg) |
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644 mode, size, mtime = parentfiledata |
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645 self.addfile(filename, mode=mode, size=size, mtime=mtime) |
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646 self.nonnormalset.discard(filename) |
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647 else: |
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648 assert False, 'unreachable' |
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649 |
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650 def set_untracked(self, f): |
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651 """Mark a file as no longer tracked in the dirstate map""" |
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652 # in merge is only trigger more logic, so it "fine" to pass it. |
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653 # |
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654 # the inner rust dirstate map code need to be adjusted once the API |
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655 # for dirstate/dirstatemap/DirstateItem is a bit more settled |
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656 self._rustmap.removefile(f, in_merge=True) |
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657 |
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658 def removefile(self, *args, **kwargs): |
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659 return self._rustmap.removefile(*args, **kwargs) |
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660 |
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661 def dropfile(self, *args, **kwargs): |
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662 return self._rustmap.dropfile(*args, **kwargs) |
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663 |
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664 def clearambiguoustimes(self, *args, **kwargs): |
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665 return self._rustmap.clearambiguoustimes(*args, **kwargs) |
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666 |
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667 def nonnormalentries(self): |
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668 return self._rustmap.nonnormalentries() |
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669 |
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670 def get(self, *args, **kwargs): |
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671 return self._rustmap.get(*args, **kwargs) |
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672 |
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673 @property |
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674 def copymap(self): |
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675 return self._rustmap.copymap() |
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676 |
47351
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677 def directories(self): |
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678 return self._rustmap.directories() |
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679 |
47683
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680 def debug_iter(self): |
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681 return self._rustmap.debug_iter() |
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682 |
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683 def preload(self): |
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684 self._rustmap |
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685 |
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686 def clear(self): |
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687 self._rustmap.clear() |
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688 self.setparents( |
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689 self._nodeconstants.nullid, self._nodeconstants.nullid |
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690 ) |
43077
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691 util.clearcachedproperty(self, b"_dirs") |
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692 util.clearcachedproperty(self, b"_alldirs") |
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693 util.clearcachedproperty(self, b"dirfoldmap") |
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694 |
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695 def items(self): |
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696 return self._rustmap.items() |
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697 |
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698 def keys(self): |
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699 return iter(self._rustmap) |
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700 |
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701 def __contains__(self, key): |
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702 return key in self._rustmap |
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703 |
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704 def __getitem__(self, item): |
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705 return self._rustmap[item] |
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706 |
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707 def __len__(self): |
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708 return len(self._rustmap) |
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709 |
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710 def __iter__(self): |
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711 return iter(self._rustmap) |
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712 |
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713 # forward for python2,3 compat |
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714 iteritems = items |
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715 |
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716 def _opendirstatefile(self): |
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717 fp, mode = txnutil.trypending( |
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718 self._root, self._opener, self._filename |
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719 ) |
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720 if self._pendingmode is not None and self._pendingmode != mode: |
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721 fp.close() |
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722 raise error.Abort( |
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723 _(b'working directory state may be changed parallelly') |
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724 ) |
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725 self._pendingmode = mode |
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726 return fp |
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727 |
47674
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728 def _readdirstatefile(self, size=-1): |
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729 try: |
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730 with self._opendirstatefile() as fp: |
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731 return fp.read(size) |
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732 except IOError as err: |
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733 if err.errno != errno.ENOENT: |
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734 raise |
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|
735 # File doesn't exist, so the current state is empty |
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736 return b'' |
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|
737 |
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|
738 def setparents(self, p1, p2): |
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739 self._parents = (p1, p2) |
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740 self._dirtyparents = True |
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741 |
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742 def parents(self): |
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743 if not self._parents: |
47280
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744 if self._use_dirstate_v2: |
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745 self._parents = self.docket.parents |
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|
746 else: |
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|
747 read_len = self._nodelen * 2 |
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748 st = self._readdirstatefile(read_len) |
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|
749 l = len(st) |
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750 if l == read_len: |
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|
751 self._parents = ( |
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|
752 st[: self._nodelen], |
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|
753 st[self._nodelen : 2 * self._nodelen], |
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|
754 ) |
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755 elif l == 0: |
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|
756 self._parents = ( |
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|
757 self._nodeconstants.nullid, |
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|
758 self._nodeconstants.nullid, |
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|
759 ) |
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|
760 else: |
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|
761 raise error.Abort( |
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|
762 _(b'working directory state appears damaged!') |
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|
763 ) |
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|
764 |
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|
765 return self._parents |
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766 |
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|
767 @property |
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|
768 def docket(self): |
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769 if not self._docket: |
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770 if not self._use_dirstate_v2: |
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|
771 raise error.ProgrammingError( |
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|
772 b'dirstate only has a docket in v2 format' |
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|
773 ) |
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774 self._docket = docketmod.DirstateDocket.parse( |
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|
775 self._readdirstatefile(), self._nodeconstants |
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776 ) |
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777 return self._docket |
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|
778 |
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|
779 @propertycache |
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|
780 def _rustmap(self): |
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|
781 """ |
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782 Fills the Dirstatemap when called. |
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783 """ |
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|
784 # ignore HG_PENDING because identity is used only for writing |
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785 self.identity = util.filestat.frompath( |
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formatting: blacken the codebase
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|
786 self._opener.join(self._filename) |
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|
787 ) |
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788 |
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789 if self._use_dirstate_v2: |
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|
790 if self.docket.uuid: |
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|
791 # TODO: use mmap when possible |
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792 data = self._opener.read(self.docket.data_filename()) |
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793 else: |
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|
794 data = b'' |
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|
795 self._rustmap = rustmod.DirstateMap.new_v2( |
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796 data, self.docket.data_size, self.docket.tree_metadata |
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|
797 ) |
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798 parents = self.docket.parents |
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799 else: |
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800 self._rustmap, parents = rustmod.DirstateMap.new_v1( |
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801 self._use_dirstate_tree, self._readdirstatefile() |
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|
802 ) |
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|
803 |
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804 if parents and not self._dirtyparents: |
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805 self.setparents(*parents) |
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806 |
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|
807 self.__contains__ = self._rustmap.__contains__ |
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808 self.__getitem__ = self._rustmap.__getitem__ |
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809 self.get = self._rustmap.get |
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810 return self._rustmap |
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811 |
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|
812 def write(self, tr, st, now): |
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813 if not self._use_dirstate_v2: |
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814 p1, p2 = self.parents() |
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815 packed = self._rustmap.write_v1(p1, p2, now) |
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816 st.write(packed) |
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817 st.close() |
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818 self._dirtyparents = False |
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|
819 return |
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820 |
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821 # We can only append to an existing data file if there is one |
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822 can_append = self.docket.uuid is not None |
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823 packed, meta, append = self._rustmap.write_v2(now, can_append) |
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824 if append: |
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825 docket = self.docket |
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826 data_filename = docket.data_filename() |
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827 if tr: |
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828 tr.add(data_filename, docket.data_size) |
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|
829 with self._opener(data_filename, b'r+b') as fp: |
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830 fp.seek(docket.data_size) |
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|
831 assert fp.tell() == docket.data_size |
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832 written = fp.write(packed) |
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|
833 if written is not None: # py2 may return None |
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|
834 assert written == len(packed), (written, len(packed)) |
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|
835 docket.data_size += len(packed) |
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836 docket.parents = self.parents() |
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|
837 docket.tree_metadata = meta |
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838 st.write(docket.serialize()) |
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|
839 st.close() |
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840 else: |
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|
841 old_docket = self.docket |
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|
842 new_docket = docketmod.DirstateDocket.with_new_uuid( |
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|
843 self.parents(), len(packed), meta |
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|
844 ) |
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|
845 data_filename = new_docket.data_filename() |
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846 if tr: |
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847 tr.add(data_filename, 0) |
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848 self._opener.write(data_filename, packed) |
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849 # Write the new docket after the new data file has been |
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850 # written. Because `st` was opened with `atomictemp=True`, |
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851 # the actual `.hg/dirstate` file is only affected on close. |
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852 st.write(new_docket.serialize()) |
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853 st.close() |
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854 # Remove the old data file after the new docket pointing to |
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855 # the new data file was written. |
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856 if old_docket.uuid: |
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857 data_filename = old_docket.data_filename() |
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858 unlink = lambda _tr=None: self._opener.unlink(data_filename) |
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859 if tr: |
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860 category = b"dirstate-v2-clean-" + old_docket.uuid |
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861 tr.addpostclose(category, unlink) |
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862 else: |
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863 unlink() |
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864 self._docket = new_docket |
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865 # Reload from the newly-written file |
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866 util.clearcachedproperty(self, b"_rustmap") |
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867 self._dirtyparents = False |
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868 |
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869 @propertycache |
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870 def filefoldmap(self): |
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871 """Returns a dictionary mapping normalized case paths to their |
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872 non-normalized versions. |
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873 """ |
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874 return self._rustmap.filefoldmapasdict() |
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875 |
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876 def hastrackeddir(self, d): |
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877 return self._rustmap.hastrackeddir(d) |
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878 |
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879 def hasdir(self, d): |
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880 return self._rustmap.hasdir(d) |
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881 |
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882 @propertycache |
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883 def identity(self): |
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884 self._rustmap |
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885 return self.identity |
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886 |
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887 @property |
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888 def nonnormalset(self): |
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889 nonnorm = self._rustmap.non_normal_entries() |
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890 return nonnorm |
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891 |
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892 @propertycache |
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893 def otherparentset(self): |
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894 otherparents = self._rustmap.other_parent_entries() |
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895 return otherparents |
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896 |
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897 def non_normal_or_other_parent_paths(self): |
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898 return self._rustmap.non_normal_or_other_parent_paths() |
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899 |
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900 @propertycache |
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901 def dirfoldmap(self): |
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902 f = {} |
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903 normcase = util.normcase |
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904 for name in self._rustmap.tracked_dirs(): |
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905 f[normcase(name)] = name |
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906 return f |
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907 |
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908 def set_possibly_dirty(self, filename): |
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909 """record that the current state of the file on disk is unknown""" |
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910 entry = self[filename] |
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911 entry.set_possibly_dirty() |
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912 self._rustmap.set_v1(filename, entry) |
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913 |
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914 def __setitem__(self, key, value): |
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915 assert isinstance(value, DirstateItem) |
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916 self._rustmap.set_v1(key, value) |