Mercurial > hg
annotate mercurial/pure/parsers.py @ 47895:22c39f8acf78
dirstate-item: feed more information to `__init__`
Instead of processing the "rich" value at the `dirstatemap` level, we can now directly pass them to the DirstateItem object. This will make the object free to store whatever its want and to implements it logic whatever its want.
For now… we simply process the flag and store the same good old value. However
this pave the way for doing things differently once the rest of dirstatemap
code is updated.
Nobody call this code yet.
Differential Revision: https://phab.mercurial-scm.org/D11320
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Fri, 16 Jul 2021 16:52:53 +0200 |
parents | 3853e6ee160d |
children | c0d6a59a7704 |
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1 # parsers.py - Python implementation of parsers.c |
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2 # |
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3 # Copyright 2009 Olivia Mackall <olivia@selenic.com> and others |
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4 # |
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5 # This software may be used and distributed according to the terms of the |
10263 | 6 # GNU General Public License version 2 or any later version. |
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7 |
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8 from __future__ import absolute_import |
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9 |
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10 import struct |
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11 import zlib |
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12 |
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13 from ..node import ( |
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14 nullrev, |
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15 sha1nodeconstants, |
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16 ) |
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17 from ..thirdparty import attr |
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18 from .. import ( |
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19 error, |
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20 pycompat, |
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21 revlogutils, |
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22 util, |
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23 ) |
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24 |
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25 from ..revlogutils import nodemap as nodemaputil |
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26 from ..revlogutils import constants as revlog_constants |
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28 stringio = pycompat.bytesio |
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31 _pack = struct.pack |
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32 _unpack = struct.unpack |
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33 _compress = zlib.compress |
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34 _decompress = zlib.decompress |
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35 |
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36 |
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37 # a special value used internally for `size` if the file come from the other parent |
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38 FROM_P2 = -2 |
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39 |
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40 # a special value used internally for `size` if the file is modified/merged/added |
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41 NONNORMAL = -1 |
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42 |
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43 # a special value used internally for `time` if the time is ambigeous |
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44 AMBIGUOUS_TIME = -1 |
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45 |
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46 |
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47 @attr.s(slots=True, init=False) |
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48 class DirstateItem(object): |
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49 """represent a dirstate entry |
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50 |
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51 It contains: |
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52 |
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53 - state (one of 'n', 'a', 'r', 'm') |
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54 - mode, |
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55 - size, |
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56 - mtime, |
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57 """ |
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58 |
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59 _state = attr.ib() |
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60 _mode = attr.ib() |
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61 _size = attr.ib() |
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62 _mtime = attr.ib() |
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63 |
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64 def __init__( |
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65 self, |
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66 wc_tracked=False, |
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67 p1_tracked=False, |
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68 p2_tracked=False, |
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69 merged=False, |
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70 clean_p1=False, |
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71 clean_p2=False, |
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72 possibly_dirty=False, |
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73 parentfiledata=None, |
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74 ): |
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75 if merged and (clean_p1 or clean_p2): |
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76 msg = b'`merged` argument incompatible with `clean_p1`/`clean_p2`' |
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77 raise error.ProgrammingError(msg) |
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78 |
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79 self._state = None |
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80 self._mode = 0 |
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81 self._size = NONNORMAL |
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82 self._mtime = AMBIGUOUS_TIME |
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83 if not (p1_tracked or p2_tracked or wc_tracked): |
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84 pass # the object has no state to record |
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85 elif merged: |
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86 self._state = b'm' |
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87 self._size = FROM_P2 |
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88 self._mtime = AMBIGUOUS_TIME |
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89 elif not (p1_tracked or p2_tracked) and wc_tracked: |
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90 self._state = b'a' |
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91 self._size = NONNORMAL |
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92 self._mtime = AMBIGUOUS_TIME |
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93 elif (p1_tracked or p2_tracked) and not wc_tracked: |
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94 self._state = b'r' |
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95 self._size = 0 |
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96 self._mtime = 0 |
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97 elif clean_p2 and wc_tracked: |
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98 self._state = b'n' |
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99 self._size = FROM_P2 |
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100 self._mtime = AMBIGUOUS_TIME |
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101 elif not p1_tracked and p2_tracked and wc_tracked: |
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102 self._state = b'n' |
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103 self._size = FROM_P2 |
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104 self._mtime = AMBIGUOUS_TIME |
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105 elif possibly_dirty: |
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106 self._state = b'n' |
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107 self._size = NONNORMAL |
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108 self._mtime = AMBIGUOUS_TIME |
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109 elif wc_tracked: |
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110 # this is a "normal" file |
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111 if parentfiledata is None: |
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112 msg = b'failed to pass parentfiledata for a normal file' |
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113 raise error.ProgrammingError(msg) |
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114 self._state = b'n' |
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115 self._mode = parentfiledata[0] |
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116 self._size = parentfiledata[1] |
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117 self._mtime = parentfiledata[2] |
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118 else: |
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119 assert False, 'unreachable' |
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120 |
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121 @classmethod |
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122 def from_v1_data(cls, state, mode, size, mtime): |
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123 """Build a new DirstateItem object from V1 data |
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124 |
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125 Since the dirstate-v1 format is frozen, the signature of this function |
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126 is not expected to change, unlike the __init__ one. |
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127 """ |
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128 instance = cls() |
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129 instance._state = state |
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130 instance._mode = mode |
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131 instance._size = size |
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132 instance._mtime = mtime |
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133 return instance |
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134 |
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135 def set_possibly_dirty(self): |
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136 """Mark a file as "possibly dirty" |
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137 |
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138 This means the next status call will have to actually check its content |
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139 to make sure it is correct. |
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140 """ |
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141 self._mtime = AMBIGUOUS_TIME |
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142 |
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143 def set_untracked(self): |
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144 """mark a file as untracked in the working copy |
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145 |
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146 This will ultimately be called by command like `hg remove`. |
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147 """ |
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148 # backup the previous state (useful for merge) |
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149 size = 0 |
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150 if self.merged: # merge |
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151 size = NONNORMAL |
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152 elif self.from_p2: |
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153 size = FROM_P2 |
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154 self._state = b'r' |
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155 self._mode = 0 |
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156 self._size = size |
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157 self._mtime = 0 |
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158 |
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159 def __getitem__(self, idx): |
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160 if idx == 0 or idx == -4: |
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161 msg = b"do not use item[x], use item.state" |
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162 util.nouideprecwarn(msg, b'6.0', stacklevel=2) |
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163 return self._state |
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164 elif idx == 1 or idx == -3: |
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165 msg = b"do not use item[x], use item.mode" |
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166 util.nouideprecwarn(msg, b'6.0', stacklevel=2) |
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167 return self._mode |
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168 elif idx == 2 or idx == -2: |
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169 msg = b"do not use item[x], use item.size" |
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170 util.nouideprecwarn(msg, b'6.0', stacklevel=2) |
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171 return self._size |
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172 elif idx == 3 or idx == -1: |
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173 msg = b"do not use item[x], use item.mtime" |
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174 util.nouideprecwarn(msg, b'6.0', stacklevel=2) |
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175 return self._mtime |
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176 else: |
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177 raise IndexError(idx) |
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178 |
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179 @property |
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180 def mode(self): |
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181 return self._mode |
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182 |
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183 @property |
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184 def size(self): |
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185 return self._size |
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186 |
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187 @property |
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188 def mtime(self): |
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189 return self._mtime |
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190 |
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191 @property |
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192 def state(self): |
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193 """ |
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194 States are: |
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195 n normal |
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196 m needs merging |
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197 r marked for removal |
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198 a marked for addition |
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199 |
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200 XXX This "state" is a bit obscure and mostly a direct expression of the |
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201 dirstatev1 format. It would make sense to ultimately deprecate it in |
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202 favor of the more "semantic" attributes. |
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203 """ |
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204 return self._state |
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205 |
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206 @property |
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207 def tracked(self): |
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208 """True is the file is tracked in the working copy""" |
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209 return self._state in b"nma" |
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210 |
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211 @property |
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212 def added(self): |
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213 """True if the file has been added""" |
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214 return self._state == b'a' |
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215 |
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216 @property |
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217 def merged(self): |
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218 """True if the file has been merged |
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219 |
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220 Should only be set if a merge is in progress in the dirstate |
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221 """ |
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222 return self._state == b'm' |
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223 |
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224 @property |
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225 def from_p2(self): |
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226 """True if the file have been fetched from p2 during the current merge |
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227 |
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228 This is only True is the file is currently tracked. |
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229 |
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230 Should only be set if a merge is in progress in the dirstate |
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231 """ |
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232 return self._state == b'n' and self._size == FROM_P2 |
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233 |
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234 @property |
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235 def from_p2_removed(self): |
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236 """True if the file has been removed, but was "from_p2" initially |
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237 |
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238 This property seems like an abstraction leakage and should probably be |
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239 dealt in this class (or maybe the dirstatemap) directly. |
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240 """ |
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241 return self._state == b'r' and self._size == FROM_P2 |
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242 |
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243 @property |
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244 def removed(self): |
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245 """True if the file has been removed""" |
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246 return self._state == b'r' |
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247 |
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248 @property |
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249 def merged_removed(self): |
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250 """True if the file has been removed, but was "merged" initially |
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251 |
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252 This property seems like an abstraction leakage and should probably be |
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253 dealt in this class (or maybe the dirstatemap) directly. |
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254 """ |
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255 return self._state == b'r' and self._size == NONNORMAL |
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256 |
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257 @property |
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258 def dm_nonnormal(self): |
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259 """True is the entry is non-normal in the dirstatemap sense |
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260 |
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261 There is no reason for any code, but the dirstatemap one to use this. |
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262 """ |
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263 return self.state != b'n' or self.mtime == AMBIGUOUS_TIME |
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264 |
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265 @property |
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266 def dm_otherparent(self): |
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267 """True is the entry is `otherparent` in the dirstatemap sense |
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268 |
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269 There is no reason for any code, but the dirstatemap one to use this. |
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270 """ |
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271 return self._size == FROM_P2 |
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272 |
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273 def v1_state(self): |
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274 """return a "state" suitable for v1 serialization""" |
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275 return self._state |
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276 |
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277 def v1_mode(self): |
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278 """return a "mode" suitable for v1 serialization""" |
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279 return self._mode |
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280 |
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281 def v1_size(self): |
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282 """return a "size" suitable for v1 serialization""" |
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283 return self._size |
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284 |
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285 def v1_mtime(self): |
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286 """return a "mtime" suitable for v1 serialization""" |
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287 return self._mtime |
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288 |
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289 def need_delay(self, now): |
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290 """True if the stored mtime would be ambiguous with the current time""" |
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291 return self._state == b'n' and self._mtime == now |
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292 |
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293 |
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294 def gettype(q): |
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295 return int(q & 0xFFFF) |
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296 |
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297 |
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298 class BaseIndexObject(object): |
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299 # Can I be passed to an algorithme implemented in Rust ? |
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300 rust_ext_compat = 0 |
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301 # Format of an index entry according to Python's `struct` language |
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302 index_format = revlog_constants.INDEX_ENTRY_V1 |
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303 # Size of a C unsigned long long int, platform independent |
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304 big_int_size = struct.calcsize(b'>Q') |
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305 # Size of a C long int, platform independent |
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306 int_size = struct.calcsize(b'>i') |
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307 # An empty index entry, used as a default value to be overridden, or nullrev |
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308 null_item = ( |
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309 0, |
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310 0, |
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311 0, |
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312 -1, |
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313 -1, |
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314 -1, |
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315 -1, |
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316 sha1nodeconstants.nullid, |
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317 0, |
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318 0, |
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319 revlog_constants.COMP_MODE_INLINE, |
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320 revlog_constants.COMP_MODE_INLINE, |
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321 ) |
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322 |
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323 @util.propertycache |
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324 def entry_size(self): |
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325 return self.index_format.size |
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326 |
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327 @property |
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328 def nodemap(self): |
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329 msg = b"index.nodemap is deprecated, use index.[has_node|rev|get_rev]" |
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330 util.nouideprecwarn(msg, b'5.3', stacklevel=2) |
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331 return self._nodemap |
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332 |
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333 @util.propertycache |
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334 def _nodemap(self): |
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335 nodemap = nodemaputil.NodeMap({sha1nodeconstants.nullid: nullrev}) |
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336 for r in range(0, len(self)): |
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337 n = self[r][7] |
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338 nodemap[n] = r |
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339 return nodemap |
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340 |
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341 def has_node(self, node): |
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342 """return True if the node exist in the index""" |
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343 return node in self._nodemap |
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344 |
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345 def rev(self, node): |
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346 """return a revision for a node |
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347 |
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348 If the node is unknown, raise a RevlogError""" |
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349 return self._nodemap[node] |
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350 |
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351 def get_rev(self, node): |
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352 """return a revision for a node |
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353 |
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354 If the node is unknown, return None""" |
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355 return self._nodemap.get(node) |
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356 |
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357 def _stripnodes(self, start): |
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358 if '_nodemap' in vars(self): |
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359 for r in range(start, len(self)): |
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360 n = self[r][7] |
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361 del self._nodemap[n] |
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362 |
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363 def clearcaches(self): |
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364 self.__dict__.pop('_nodemap', None) |
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365 |
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366 def __len__(self): |
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367 return self._lgt + len(self._extra) |
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368 |
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369 def append(self, tup): |
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370 if '_nodemap' in vars(self): |
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371 self._nodemap[tup[7]] = len(self) |
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372 data = self._pack_entry(len(self), tup) |
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373 self._extra.append(data) |
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374 |
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375 def _pack_entry(self, rev, entry): |
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376 assert entry[8] == 0 |
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377 assert entry[9] == 0 |
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378 return self.index_format.pack(*entry[:8]) |
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379 |
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380 def _check_index(self, i): |
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381 if not isinstance(i, int): |
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382 raise TypeError(b"expecting int indexes") |
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383 if i < 0 or i >= len(self): |
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384 raise IndexError |
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385 |
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386 def __getitem__(self, i): |
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387 if i == -1: |
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388 return self.null_item |
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389 self._check_index(i) |
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390 if i >= self._lgt: |
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391 data = self._extra[i - self._lgt] |
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392 else: |
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393 index = self._calculate_index(i) |
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394 data = self._data[index : index + self.entry_size] |
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395 r = self._unpack_entry(i, data) |
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396 if self._lgt and i == 0: |
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397 offset = revlogutils.offset_type(0, gettype(r[0])) |
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398 r = (offset,) + r[1:] |
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399 return r |
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400 |
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401 def _unpack_entry(self, rev, data): |
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402 r = self.index_format.unpack(data) |
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403 r = r + ( |
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404 0, |
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405 0, |
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406 revlog_constants.COMP_MODE_INLINE, |
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407 revlog_constants.COMP_MODE_INLINE, |
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408 ) |
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409 return r |
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410 |
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411 def pack_header(self, header): |
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412 """pack header information as binary""" |
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413 v_fmt = revlog_constants.INDEX_HEADER |
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414 return v_fmt.pack(header) |
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415 |
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416 def entry_binary(self, rev): |
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417 """return the raw binary string representing a revision""" |
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418 entry = self[rev] |
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419 p = revlog_constants.INDEX_ENTRY_V1.pack(*entry[:8]) |
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420 if rev == 0: |
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421 p = p[revlog_constants.INDEX_HEADER.size :] |
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422 return p |
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423 |
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424 |
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425 class IndexObject(BaseIndexObject): |
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426 def __init__(self, data): |
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427 assert len(data) % self.entry_size == 0, ( |
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428 len(data), |
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429 self.entry_size, |
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430 len(data) % self.entry_size, |
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431 ) |
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432 self._data = data |
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433 self._lgt = len(data) // self.entry_size |
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434 self._extra = [] |
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435 |
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436 def _calculate_index(self, i): |
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437 return i * self.entry_size |
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439 def __delitem__(self, i): |
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440 if not isinstance(i, slice) or not i.stop == -1 or i.step is not None: |
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441 raise ValueError(b"deleting slices only supports a:-1 with step 1") |
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442 i = i.start |
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443 self._check_index(i) |
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444 self._stripnodes(i) |
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445 if i < self._lgt: |
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446 self._data = self._data[: i * self.entry_size] |
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447 self._lgt = i |
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448 self._extra = [] |
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449 else: |
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450 self._extra = self._extra[: i - self._lgt] |
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451 |
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452 |
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453 class PersistentNodeMapIndexObject(IndexObject): |
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454 """a Debug oriented class to test persistent nodemap |
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455 |
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456 We need a simple python object to test API and higher level behavior. See |
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457 the Rust implementation for more serious usage. This should be used only |
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458 through the dedicated `devel.persistent-nodemap` config. |
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459 """ |
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460 |
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461 def nodemap_data_all(self): |
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462 """Return bytes containing a full serialization of a nodemap |
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463 |
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464 The nodemap should be valid for the full set of revisions in the |
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465 index.""" |
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466 return nodemaputil.persistent_data(self) |
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467 |
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468 def nodemap_data_incremental(self): |
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469 """Return bytes containing a incremental update to persistent nodemap |
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470 |
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471 This containst the data for an append-only update of the data provided |
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472 in the last call to `update_nodemap_data`. |
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473 """ |
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474 if self._nm_root is None: |
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475 return None |
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476 docket = self._nm_docket |
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477 changed, data = nodemaputil.update_persistent_data( |
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478 self, self._nm_root, self._nm_max_idx, self._nm_docket.tip_rev |
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479 ) |
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480 |
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481 self._nm_root = self._nm_max_idx = self._nm_docket = None |
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482 return docket, changed, data |
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483 |
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484 def update_nodemap_data(self, docket, nm_data): |
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485 """provide full block of persisted binary data for a nodemap |
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486 |
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487 The data are expected to come from disk. See `nodemap_data_all` for a |
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488 produceur of such data.""" |
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489 if nm_data is not None: |
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490 self._nm_root, self._nm_max_idx = nodemaputil.parse_data(nm_data) |
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491 if self._nm_root: |
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492 self._nm_docket = docket |
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493 else: |
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494 self._nm_root = self._nm_max_idx = self._nm_docket = None |
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495 |
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496 |
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497 class InlinedIndexObject(BaseIndexObject): |
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498 def __init__(self, data, inline=0): |
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499 self._data = data |
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500 self._lgt = self._inline_scan(None) |
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501 self._inline_scan(self._lgt) |
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502 self._extra = [] |
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503 |
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504 def _inline_scan(self, lgt): |
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505 off = 0 |
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506 if lgt is not None: |
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507 self._offsets = [0] * lgt |
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508 count = 0 |
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509 while off <= len(self._data) - self.entry_size: |
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510 start = off + self.big_int_size |
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511 (s,) = struct.unpack( |
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512 b'>i', |
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513 self._data[start : start + self.int_size], |
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514 ) |
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515 if lgt is not None: |
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516 self._offsets[count] = off |
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|
517 count += 1 |
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Pierre-Yves David <pierre-yves.david@octobus.net>
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diff
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|
518 off += self.entry_size + s |
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|
519 if off != len(self._data): |
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Augie Fackler <augie@google.com>
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|
520 raise ValueError(b"corrupted data") |
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|
521 return count |
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Augie Fackler <durin42@gmail.com>
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diff
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|
522 |
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diff
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|
523 def __delitem__(self, i): |
34331
531332502568
style: always use `x is not None` instead of `not x is None`
Alex Gaynor <agaynor@mozilla.com>
parents:
32372
diff
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|
524 if not isinstance(i, slice) or not i.stop == -1 or i.step is not None: |
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Augie Fackler <augie@google.com>
parents:
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diff
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|
525 raise ValueError(b"deleting slices only supports a:-1 with step 1") |
39217
5961517fd2a8
index: rename _fix_index() since it no longer fixes the index
Martin von Zweigbergk <martinvonz@google.com>
parents:
39216
diff
changeset
|
526 i = i.start |
5961517fd2a8
index: rename _fix_index() since it no longer fixes the index
Martin von Zweigbergk <martinvonz@google.com>
parents:
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diff
changeset
|
527 self._check_index(i) |
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parents:
43531
diff
changeset
|
528 self._stripnodes(i) |
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|
529 if i < self._lgt: |
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diff
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|
530 self._offsets = self._offsets[:i] |
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|
531 self._lgt = i |
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|
532 self._extra = [] |
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|
533 else: |
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parents:
39217
diff
changeset
|
534 self._extra = self._extra[: i - self._lgt] |
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f410c552fa15
pure Python implementation of parsers.c
Martin Geisler <mg@daimi.au.dk>
parents:
diff
changeset
|
535 |
29133
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diff
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|
536 def _calculate_index(self, i): |
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diff
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|
537 return self._offsets[i] |
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pure Python implementation of parsers.c
Martin Geisler <mg@daimi.au.dk>
parents:
diff
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|
538 |
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2372284d9457
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Augie Fackler <augie@google.com>
parents:
39217
diff
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|
539 |
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Raphaël Gomès <rgomes@octobus.net>
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diff
changeset
|
540 def parse_index2(data, inline, revlogv2=False): |
29133
255274719dc1
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Maciej Fijalkowski <fijall@gmail.com>
parents:
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diff
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|
541 if not inline: |
46704
913485776542
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diff
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542 cls = IndexObject2 if revlogv2 else IndexObject |
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diff
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|
543 return cls(data), None |
47262
468e451fc0de
revlogv2: drop the code related to inlined revlogv2
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47259
diff
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|
544 cls = InlinedIndexObject |
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diff
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|
545 return cls(data, inline), (0, data) |
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diff
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|
546 |
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diff
changeset
|
547 |
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25ce16bf724b
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47268
diff
changeset
|
548 def parse_index_cl_v2(data): |
25ce16bf724b
changelogv2: use a dedicated on disk format for changelogv2
Pierre-Yves David <pierre-yves.david@octobus.net>
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diff
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|
549 return IndexChangelogV2(data), None |
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diff
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|
550 |
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diff
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|
551 |
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diff
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|
552 class IndexObject2(IndexObject): |
46860
1dc86c2a43ce
revlog: directly use the Struct object for related operation
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parents:
46858
diff
changeset
|
553 index_format = revlog_constants.INDEX_ENTRY_V2 |
46704
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diff
changeset
|
554 |
47078
223b47235d1c
sidedata: enable sidedata computers to optionally rewrite flags
Raphaël Gomès <rgomes@octobus.net>
parents:
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diff
changeset
|
555 def replace_sidedata_info( |
47259
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diff
changeset
|
556 self, |
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revlog: compress sidedata when doing "post-pull" sidedata update
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diff
changeset
|
557 rev, |
07641bafa646
revlog: compress sidedata when doing "post-pull" sidedata update
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diff
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|
558 sidedata_offset, |
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diff
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|
559 sidedata_length, |
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revlog: compress sidedata when doing "post-pull" sidedata update
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diff
changeset
|
560 offset_flags, |
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revlog: compress sidedata when doing "post-pull" sidedata update
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diff
changeset
|
561 compression_mode, |
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diff
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|
562 ): |
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diff
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|
563 """ |
502e795b55ac
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Raphaël Gomès <rgomes@octobus.net>
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46704
diff
changeset
|
564 Replace an existing index entry's sidedata offset and length with new |
502e795b55ac
revlog-index: add `replace_sidedata_info` method
Raphaël Gomès <rgomes@octobus.net>
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diff
changeset
|
565 ones. |
502e795b55ac
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Raphaël Gomès <rgomes@octobus.net>
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46704
diff
changeset
|
566 This cannot be used outside of the context of sidedata rewriting, |
47243
3b04cf976c67
revlog: use `rev` instead of `i` in replace_sidedata_info
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47235
diff
changeset
|
567 inside the transaction that creates the revision `rev`. |
46717
502e795b55ac
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Raphaël Gomès <rgomes@octobus.net>
parents:
46704
diff
changeset
|
568 """ |
47243
3b04cf976c67
revlog: use `rev` instead of `i` in replace_sidedata_info
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parents:
47235
diff
changeset
|
569 if rev < 0: |
46717
502e795b55ac
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Raphaël Gomès <rgomes@octobus.net>
parents:
46704
diff
changeset
|
570 raise KeyError |
47243
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revlog: use `rev` instead of `i` in replace_sidedata_info
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47235
diff
changeset
|
571 self._check_index(rev) |
47244
78230d036e5d
revlog: simplify the replace_sidedata_info code
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47243
diff
changeset
|
572 if rev < self._lgt: |
46717
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revlog-index: add `replace_sidedata_info` method
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diff
changeset
|
573 msg = b"cannot rewrite entries outside of this transaction" |
502e795b55ac
revlog-index: add `replace_sidedata_info` method
Raphaël Gomès <rgomes@octobus.net>
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46704
diff
changeset
|
574 raise KeyError(msg) |
47244
78230d036e5d
revlog: simplify the replace_sidedata_info code
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47243
diff
changeset
|
575 else: |
78230d036e5d
revlog: simplify the replace_sidedata_info code
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47243
diff
changeset
|
576 entry = list(self[rev]) |
78230d036e5d
revlog: simplify the replace_sidedata_info code
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47243
diff
changeset
|
577 entry[0] = offset_flags |
78230d036e5d
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parents:
47243
diff
changeset
|
578 entry[8] = sidedata_offset |
78230d036e5d
revlog: simplify the replace_sidedata_info code
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parents:
47243
diff
changeset
|
579 entry[9] = sidedata_length |
47259
07641bafa646
revlog: compress sidedata when doing "post-pull" sidedata update
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parents:
47256
diff
changeset
|
580 entry[11] = compression_mode |
47244
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revlog: simplify the replace_sidedata_info code
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47243
diff
changeset
|
581 entry = tuple(entry) |
47267
55d280bc59fa
revlog: pass around the `rev` we deal with when packing/unpacking entry
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47262
diff
changeset
|
582 new = self._pack_entry(rev, entry) |
47244
78230d036e5d
revlog: simplify the replace_sidedata_info code
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47243
diff
changeset
|
583 self._extra[rev - self._lgt] = new |
46717
502e795b55ac
revlog-index: add `replace_sidedata_info` method
Raphaël Gomès <rgomes@octobus.net>
parents:
46704
diff
changeset
|
584 |
47267
55d280bc59fa
revlog: pass around the `rev` we deal with when packing/unpacking entry
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47262
diff
changeset
|
585 def _unpack_entry(self, rev, data): |
47256
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parents:
47251
diff
changeset
|
586 data = self.index_format.unpack(data) |
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parents:
47251
diff
changeset
|
587 entry = data[:10] |
2b69555e4875
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47251
diff
changeset
|
588 data_comp = data[10] & 3 |
2b69555e4875
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parents:
47251
diff
changeset
|
589 sidedata_comp = (data[10] & (3 << 2)) >> 2 |
2b69555e4875
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parents:
47251
diff
changeset
|
590 return entry + (data_comp, sidedata_comp) |
47142
4292bed8da7c
revlog: make the index always return the same tuple
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47078
diff
changeset
|
591 |
47267
55d280bc59fa
revlog: pass around the `rev` we deal with when packing/unpacking entry
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47262
diff
changeset
|
592 def _pack_entry(self, rev, entry): |
47256
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diff
changeset
|
593 data = entry[:10] |
2b69555e4875
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diff
changeset
|
594 data_comp = entry[10] & 3 |
2b69555e4875
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diff
changeset
|
595 sidedata_comp = (entry[11] & 3) << 2 |
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diff
changeset
|
596 data += (data_comp | sidedata_comp,) |
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diff
changeset
|
597 |
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diff
changeset
|
598 return self.index_format.pack(*data) |
47143
47ffc754989a
revlog: always "append" full size tuple
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47142
diff
changeset
|
599 |
47037
d57386e5c80e
revlog: have an explicit "pack_header" method
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47034
diff
changeset
|
600 def entry_binary(self, rev): |
47034
0d8ff1f4ab0c
revlog: add a `entry_binary` method on index
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47012
diff
changeset
|
601 """return the raw binary string representing a revision""" |
0d8ff1f4ab0c
revlog: add a `entry_binary` method on index
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parents:
47012
diff
changeset
|
602 entry = self[rev] |
47267
55d280bc59fa
revlog: pass around the `rev` we deal with when packing/unpacking entry
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parents:
47262
diff
changeset
|
603 return self._pack_entry(rev, entry) |
47034
0d8ff1f4ab0c
revlog: add a `entry_binary` method on index
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parents:
47012
diff
changeset
|
604 |
47235
6b1eae313b2f
revlogv2: store version information in the docket only
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47143
diff
changeset
|
605 def pack_header(self, header): |
6b1eae313b2f
revlogv2: store version information in the docket only
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parents:
47143
diff
changeset
|
606 """pack header information as binary""" |
6b1eae313b2f
revlogv2: store version information in the docket only
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parents:
47143
diff
changeset
|
607 msg = 'version header should go in the docket, not the index: %d' |
6b1eae313b2f
revlogv2: store version information in the docket only
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parents:
47143
diff
changeset
|
608 msg %= header |
6b1eae313b2f
revlogv2: store version information in the docket only
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parents:
47143
diff
changeset
|
609 raise error.ProgrammingError(msg) |
6b1eae313b2f
revlogv2: store version information in the docket only
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parents:
47143
diff
changeset
|
610 |
46704
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Raphaël Gomès <rgomes@octobus.net>
parents:
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diff
changeset
|
611 |
47270
25ce16bf724b
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47268
diff
changeset
|
612 class IndexChangelogV2(IndexObject2): |
25ce16bf724b
changelogv2: use a dedicated on disk format for changelogv2
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47268
diff
changeset
|
613 index_format = revlog_constants.INDEX_ENTRY_CL_V2 |
25ce16bf724b
changelogv2: use a dedicated on disk format for changelogv2
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diff
changeset
|
614 |
25ce16bf724b
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47268
diff
changeset
|
615 def _unpack_entry(self, rev, data, r=True): |
25ce16bf724b
changelogv2: use a dedicated on disk format for changelogv2
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47268
diff
changeset
|
616 items = self.index_format.unpack(data) |
25ce16bf724b
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47268
diff
changeset
|
617 entry = items[:3] + (rev, rev) + items[3:8] |
25ce16bf724b
changelogv2: use a dedicated on disk format for changelogv2
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diff
changeset
|
618 data_comp = items[8] & 3 |
25ce16bf724b
changelogv2: use a dedicated on disk format for changelogv2
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47268
diff
changeset
|
619 sidedata_comp = (items[8] >> 2) & 3 |
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620 return entry + (data_comp, sidedata_comp) |
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621 |
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622 def _pack_entry(self, rev, entry): |
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623 assert entry[3] == rev, entry[3] |
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624 assert entry[4] == rev, entry[4] |
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625 data = entry[:3] + entry[5:10] |
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626 data_comp = entry[10] & 3 |
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627 sidedata_comp = (entry[11] & 3) << 2 |
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628 data += (data_comp | sidedata_comp,) |
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629 return self.index_format.pack(*data) |
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630 |
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631 |
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632 def parse_index_devel_nodemap(data, inline): |
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633 """like parse_index2, but alway return a PersistentNodeMapIndexObject""" |
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634 return PersistentNodeMapIndexObject(data), None |
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635 |
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636 |
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637 def parse_dirstate(dmap, copymap, st): |
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638 parents = [st[:20], st[20:40]] |
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639 # dereference fields so they will be local in loop |
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640 format = b">cllll" |
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641 e_size = struct.calcsize(format) |
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642 pos1 = 40 |
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643 l = len(st) |
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644 |
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645 # the inner loop |
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646 while pos1 < l: |
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647 pos2 = pos1 + e_size |
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648 e = _unpack(b">cllll", st[pos1:pos2]) # a literal here is faster |
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649 pos1 = pos2 + e[4] |
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650 f = st[pos2:pos1] |
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651 if b'\0' in f: |
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652 f, c = f.split(b'\0') |
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653 copymap[f] = c |
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654 dmap[f] = DirstateItem.from_v1_data(*e[:4]) |
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655 return parents |
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656 |
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657 |
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658 def pack_dirstate(dmap, copymap, pl, now): |
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659 now = int(now) |
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660 cs = stringio() |
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661 write = cs.write |
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662 write(b"".join(pl)) |
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663 for f, e in pycompat.iteritems(dmap): |
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664 if e.need_delay(now): |
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665 # The file was last modified "simultaneously" with the current |
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666 # write to dirstate (i.e. within the same second for file- |
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667 # systems with a granularity of 1 sec). This commonly happens |
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668 # for at least a couple of files on 'update'. |
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669 # The user could change the file without changing its size |
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670 # within the same second. Invalidate the file's mtime in |
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671 # dirstate, forcing future 'status' calls to compare the |
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672 # contents of the file if the size is the same. This prevents |
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673 # mistakenly treating such files as clean. |
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674 e.set_possibly_dirty() |
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675 |
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676 if f in copymap: |
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677 f = b"%s\0%s" % (f, copymap[f]) |
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678 e = _pack( |
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679 b">cllll", |
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680 e.v1_state(), |
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681 e.v1_mode(), |
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682 e.v1_size(), |
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683 e.v1_mtime(), |
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684 len(f), |
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685 ) |
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686 write(e) |
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687 write(f) |
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688 return cs.getvalue() |