Mercurial > hg
annotate mercurial/pure/parsers.py @ 47990:0d2a404f1932
dirstate: introduce a set_tracked method on "map" and "item"
This move more implementation details withing the DirstateItem itself, which is
what we have been doing for a while.
Differential Revision: https://phab.mercurial-scm.org/D11430
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Wed, 15 Sep 2021 18:05:39 +0200 |
parents | 4e6f27230aee |
children | a660d8a53267 |
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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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27 |
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28 stringio = pycompat.bytesio |
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29 |
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30 |
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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 _wc_tracked = attr.ib() |
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60 _p1_tracked = attr.ib() |
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61 _p2_tracked = attr.ib() |
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62 # the three item above should probably be combined |
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63 # |
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64 # However it is unclear if they properly cover some of the most advanced |
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65 # merge case. So we should probably wait on this to be settled. |
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66 _merged = attr.ib() |
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67 _clean_p1 = attr.ib() |
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68 _clean_p2 = attr.ib() |
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69 _possibly_dirty = attr.ib() |
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70 _mode = attr.ib() |
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71 _size = attr.ib() |
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72 _mtime = attr.ib() |
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73 |
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74 def __init__( |
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75 self, |
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76 wc_tracked=False, |
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77 p1_tracked=False, |
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78 p2_tracked=False, |
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79 merged=False, |
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80 clean_p1=False, |
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81 clean_p2=False, |
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82 possibly_dirty=False, |
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83 parentfiledata=None, |
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84 ): |
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85 if merged and (clean_p1 or clean_p2): |
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86 msg = b'`merged` argument incompatible with `clean_p1`/`clean_p2`' |
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87 raise error.ProgrammingError(msg) |
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88 |
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89 self._wc_tracked = wc_tracked |
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90 self._p1_tracked = p1_tracked |
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91 self._p2_tracked = p2_tracked |
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92 self._merged = merged |
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93 self._clean_p1 = clean_p1 |
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94 self._clean_p2 = clean_p2 |
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95 self._possibly_dirty = possibly_dirty |
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96 if parentfiledata is None: |
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97 self._mode = None |
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98 self._size = None |
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99 self._mtime = None |
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100 else: |
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101 self._mode = parentfiledata[0] |
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102 self._size = parentfiledata[1] |
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103 self._mtime = parentfiledata[2] |
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104 |
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105 @classmethod |
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106 def new_added(cls): |
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107 """constructor to help legacy API to build a new "added" item |
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108 |
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109 Should eventually be removed |
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110 """ |
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111 instance = cls() |
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112 instance._wc_tracked = True |
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113 instance._p1_tracked = False |
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114 instance._p2_tracked = False |
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115 return instance |
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116 |
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117 @classmethod |
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118 def new_merged(cls): |
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119 """constructor to help legacy API to build a new "merged" item |
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120 |
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121 Should eventually be removed |
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122 """ |
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123 instance = cls() |
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124 instance._wc_tracked = True |
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125 instance._p1_tracked = True # might not be True because of rename ? |
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126 instance._p2_tracked = True # might not be True because of rename ? |
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127 instance._merged = True |
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128 return instance |
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129 |
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130 @classmethod |
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131 def new_from_p2(cls): |
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132 """constructor to help legacy API to build a new "from_p2" item |
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133 |
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134 Should eventually be removed |
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135 """ |
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136 instance = cls() |
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137 instance._wc_tracked = True |
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138 instance._p1_tracked = False # might actually be True |
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139 instance._p2_tracked = True |
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140 instance._clean_p2 = True |
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141 return instance |
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142 |
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143 @classmethod |
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144 def new_possibly_dirty(cls): |
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145 """constructor to help legacy API to build a new "possibly_dirty" item |
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146 |
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147 Should eventually be removed |
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148 """ |
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149 instance = cls() |
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150 instance._wc_tracked = True |
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151 instance._p1_tracked = True |
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152 instance._possibly_dirty = True |
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153 return instance |
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154 |
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155 @classmethod |
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156 def new_normal(cls, mode, size, mtime): |
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157 """constructor to help legacy API to build a new "normal" item |
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158 |
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159 Should eventually be removed |
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160 """ |
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161 assert size != FROM_P2 |
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162 assert size != NONNORMAL |
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163 instance = cls() |
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164 instance._wc_tracked = True |
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165 instance._p1_tracked = True |
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166 instance._mode = mode |
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167 instance._size = size |
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168 instance._mtime = mtime |
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169 return instance |
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170 |
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171 @classmethod |
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172 def from_v1_data(cls, state, mode, size, mtime): |
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173 """Build a new DirstateItem object from V1 data |
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174 |
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175 Since the dirstate-v1 format is frozen, the signature of this function |
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176 is not expected to change, unlike the __init__ one. |
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177 """ |
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178 if state == b'm': |
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179 return cls.new_merged() |
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180 elif state == b'a': |
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181 return cls.new_added() |
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182 elif state == b'r': |
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183 instance = cls() |
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184 instance._wc_tracked = False |
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185 if size == NONNORMAL: |
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186 instance._merged = True |
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187 instance._p1_tracked = ( |
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188 True # might not be True because of rename ? |
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189 ) |
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190 instance._p2_tracked = ( |
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191 True # might not be True because of rename ? |
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192 ) |
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193 elif size == FROM_P2: |
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194 instance._clean_p2 = True |
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195 instance._p1_tracked = ( |
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196 False # We actually don't know (file history) |
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197 ) |
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198 instance._p2_tracked = True |
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199 else: |
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200 instance._p1_tracked = True |
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201 return instance |
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202 elif state == b'n': |
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203 if size == FROM_P2: |
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204 return cls.new_from_p2() |
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205 elif size == NONNORMAL: |
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206 return cls.new_possibly_dirty() |
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207 elif mtime == AMBIGUOUS_TIME: |
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208 instance = cls.new_normal(mode, size, 42) |
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209 instance._mtime = None |
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210 instance._possibly_dirty = True |
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211 return instance |
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212 else: |
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213 return cls.new_normal(mode, size, mtime) |
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214 else: |
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215 raise RuntimeError(b'unknown state: %s' % state) |
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216 |
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217 def set_possibly_dirty(self): |
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218 """Mark a file as "possibly dirty" |
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219 |
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220 This means the next status call will have to actually check its content |
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221 to make sure it is correct. |
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222 """ |
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223 self._possibly_dirty = True |
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224 |
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225 def set_clean(self, mode, size, mtime): |
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226 """mark a file as "clean" cancelling potential "possibly dirty call" |
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227 |
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228 Note: this function is a descendant of `dirstate.normal` and is |
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229 currently expected to be call on "normal" entry only. There are not |
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230 reason for this to not change in the future as long as the ccode is |
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231 updated to preserve the proper state of the non-normal files. |
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232 """ |
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233 self._wc_tracked = True |
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234 self._p1_tracked = True |
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235 self._p2_tracked = False # this might be wrong |
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236 self._merged = False |
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237 self._clean_p2 = False |
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238 self._possibly_dirty = False |
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239 self._mode = mode |
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240 self._size = size |
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241 self._mtime = mtime |
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242 |
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243 def set_tracked(self): |
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244 """mark a file as tracked in the working copy |
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245 |
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246 This will ultimately be called by command like `hg add`. |
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247 """ |
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248 self._wc_tracked = True |
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249 # `set_tracked` is replacing various `normallookup` call. So we set |
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250 # "possibly dirty" to stay on the safe side. |
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251 # |
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252 # Consider dropping this in the future in favor of something less broad. |
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253 self._possibly_dirty = True |
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254 |
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255 def set_untracked(self): |
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256 """mark a file as untracked in the working copy |
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257 |
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258 This will ultimately be called by command like `hg remove`. |
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259 """ |
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260 # backup the previous state (useful for merge) |
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261 self._wc_tracked = False |
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262 self._mode = None |
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263 self._size = None |
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264 self._mtime = None |
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265 |
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266 @property |
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267 def mode(self): |
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268 return self.v1_mode() |
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269 |
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270 @property |
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271 def size(self): |
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272 return self.v1_size() |
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273 |
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274 @property |
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275 def mtime(self): |
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276 return self.v1_mtime() |
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277 |
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278 @property |
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279 def state(self): |
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280 """ |
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281 States are: |
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282 n normal |
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283 m needs merging |
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284 r marked for removal |
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285 a marked for addition |
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286 |
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287 XXX This "state" is a bit obscure and mostly a direct expression of the |
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288 dirstatev1 format. It would make sense to ultimately deprecate it in |
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289 favor of the more "semantic" attributes. |
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290 """ |
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291 return self.v1_state() |
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292 |
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293 @property |
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294 def tracked(self): |
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295 """True is the file is tracked in the working copy""" |
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296 return self._wc_tracked |
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297 |
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298 @property |
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299 def added(self): |
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300 """True if the file has been added""" |
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301 return self._wc_tracked and not (self._p1_tracked or self._p2_tracked) |
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302 |
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303 @property |
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304 def merged(self): |
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305 """True if the file has been merged |
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306 |
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307 Should only be set if a merge is in progress in the dirstate |
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308 """ |
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309 return self._wc_tracked and self._merged |
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310 |
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311 @property |
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312 def from_p2(self): |
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313 """True if the file have been fetched from p2 during the current merge |
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314 |
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315 This is only True is the file is currently tracked. |
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316 |
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317 Should only be set if a merge is in progress in the dirstate |
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318 """ |
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319 if not self._wc_tracked: |
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320 return False |
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321 return self._clean_p2 or (not self._p1_tracked and self._p2_tracked) |
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322 |
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323 @property |
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324 def from_p2_removed(self): |
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325 """True if the file has been removed, but was "from_p2" initially |
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326 |
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327 This property seems like an abstraction leakage and should probably be |
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328 dealt in this class (or maybe the dirstatemap) directly. |
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329 """ |
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330 return self.removed and self._clean_p2 |
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331 |
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332 @property |
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333 def removed(self): |
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334 """True if the file has been removed""" |
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335 return not self._wc_tracked and (self._p1_tracked or self._p2_tracked) |
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336 |
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337 @property |
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338 def merged_removed(self): |
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339 """True if the file has been removed, but was "merged" initially |
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340 |
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341 This property seems like an abstraction leakage and should probably be |
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342 dealt in this class (or maybe the dirstatemap) directly. |
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343 """ |
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344 return self.removed and self._merged |
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345 |
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346 @property |
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347 def dm_nonnormal(self): |
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348 """True is the entry is non-normal in the dirstatemap sense |
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349 |
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350 There is no reason for any code, but the dirstatemap one to use this. |
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351 """ |
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352 return self.v1_state() != b'n' or self.v1_mtime() == AMBIGUOUS_TIME |
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353 |
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354 @property |
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355 def dm_otherparent(self): |
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356 """True is the entry is `otherparent` in the dirstatemap sense |
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357 |
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358 There is no reason for any code, but the dirstatemap one to use this. |
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359 """ |
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|
360 return self.v1_size() == FROM_P2 |
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|
361 |
47509
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362 def v1_state(self): |
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363 """return a "state" suitable for v1 serialization""" |
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364 if not (self._p1_tracked or self._p2_tracked or self._wc_tracked): |
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365 # the object has no state to record, this is -currently- |
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366 # unsupported |
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|
367 raise RuntimeError('untracked item') |
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|
368 elif self.removed: |
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369 return b'r' |
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|
370 elif self.merged: |
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371 return b'm' |
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372 elif self.added: |
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373 return b'a' |
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374 else: |
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375 return b'n' |
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376 |
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377 def v1_mode(self): |
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378 """return a "mode" suitable for v1 serialization""" |
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379 return self._mode if self._mode is not None else 0 |
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380 |
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381 def v1_size(self): |
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382 """return a "size" suitable for v1 serialization""" |
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383 if not (self._p1_tracked or self._p2_tracked or self._wc_tracked): |
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384 # the object has no state to record, this is -currently- |
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385 # unsupported |
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386 raise RuntimeError('untracked item') |
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387 elif self.merged_removed: |
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388 return NONNORMAL |
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389 elif self.from_p2_removed: |
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390 return FROM_P2 |
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391 elif self.removed: |
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392 return 0 |
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393 elif self.merged: |
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394 return FROM_P2 |
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395 elif self.added: |
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396 return NONNORMAL |
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397 elif self.from_p2: |
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398 return FROM_P2 |
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399 elif self._possibly_dirty: |
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|
400 return self._size if self._size is not None else NONNORMAL |
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401 else: |
47927
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|
402 return self._size |
47509
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|
403 |
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diff
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|
404 def v1_mtime(self): |
80dc1d452993
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diff
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|
405 """return a "mtime" suitable for v1 serialization""" |
47927
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|
406 if not (self._p1_tracked or self._p2_tracked or self._wc_tracked): |
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parents:
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|
407 # the object has no state to record, this is -currently- |
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diff
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|
408 # unsupported |
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parents:
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diff
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|
409 raise RuntimeError('untracked item') |
47938
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parents:
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diff
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|
410 elif self.removed: |
47927
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|
411 return 0 |
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diff
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412 elif self._possibly_dirty: |
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parents:
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diff
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|
413 return AMBIGUOUS_TIME |
47938
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diff
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|
414 elif self.merged: |
47927
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diff
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|
415 return AMBIGUOUS_TIME |
47938
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diff
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|
416 elif self.added: |
47927
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47926
diff
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|
417 return AMBIGUOUS_TIME |
47938
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418 elif self.from_p2: |
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diff
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|
419 return AMBIGUOUS_TIME |
47927
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diff
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|
420 else: |
47938
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diff
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|
421 return self._mtime if self._mtime is not None else 0 |
47509
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diff
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422 |
47532
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diff
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423 def need_delay(self, now): |
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|
424 """True if the stored mtime would be ambiguous with the current time""" |
47926
05f2be3affe3
dirstate-item: have all the logic go through the v1_ accessors
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47925
diff
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425 return self.v1_state() == b'n' and self.v1_mtime() == now |
47532
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|
426 |
43076
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Augie Fackler <augie@google.com>
parents:
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|
427 |
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428 def gettype(q): |
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429 return int(q & 0xFFFF) |
7945
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pure/parsers: fix circular imports, import mercurial modules properly
Matt Mackall <mpm@selenic.com>
parents:
7873
diff
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430 |
43076
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parents:
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431 |
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432 class BaseIndexObject(object): |
47268
9d1a8829f959
revlog: signal which revlog index are compatible with Rust
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
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diff
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433 # Can I be passed to an algorithme implemented in Rust ? |
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434 rust_ext_compat = 0 |
46635
e83327af26f1
pure-parsers: document index class constants
Raphaël Gomès <rgomes@octobus.net>
parents:
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diff
changeset
|
435 # Format of an index entry according to Python's `struct` language |
46860
1dc86c2a43ce
revlog: directly use the Struct object for related operation
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
46858
diff
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|
436 index_format = revlog_constants.INDEX_ENTRY_V1 |
46635
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diff
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437 # Size of a C unsigned long long int, platform independent |
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diff
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|
438 big_int_size = struct.calcsize(b'>Q') |
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diff
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|
439 # Size of a C long int, platform independent |
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diff
changeset
|
440 int_size = struct.calcsize(b'>i') |
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parents:
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diff
changeset
|
441 # An empty index entry, used as a default value to be overridden, or nullrev |
47249
130c9f7ed914
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parents:
47244
diff
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|
442 null_item = ( |
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diff
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|
443 0, |
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444 0, |
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445 0, |
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|
446 -1, |
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447 -1, |
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448 -1, |
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449 -1, |
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450 sha1nodeconstants.nullid, |
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parents:
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|
451 0, |
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diff
changeset
|
452 0, |
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changeset
|
453 revlog_constants.COMP_MODE_INLINE, |
47256
2b69555e4875
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parents:
47251
diff
changeset
|
454 revlog_constants.COMP_MODE_INLINE, |
47249
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|
455 ) |
46407
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revlog: prepare pure parser for being overloaded
Raphaël Gomès <rgomes@octobus.net>
parents:
45942
diff
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|
456 |
46974
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|
457 @util.propertycache |
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458 def entry_size(self): |
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459 return self.index_format.size |
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460 |
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461 @property |
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diff
changeset
|
462 def nodemap(self): |
43619
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py3: pass a bytes value for "msg" to nouideprecwarn()
Denis Laxalde <denis.laxalde@logilab.fr>
parents:
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diff
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|
463 msg = b"index.nodemap is deprecated, use index.[has_node|rev|get_rev]" |
43574
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464 util.nouideprecwarn(msg, b'5.3', stacklevel=2) |
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465 return self._nodemap |
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466 |
43525
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|
467 @util.propertycache |
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|
468 def _nodemap(self): |
47012
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Joerg Sonnenberger <joerg@bec.de>
parents:
46974
diff
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|
469 nodemap = nodemaputil.NodeMap({sha1nodeconstants.nullid: nullrev}) |
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|
470 for r in range(0, len(self)): |
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|
471 n = self[r][7] |
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472 nodemap[n] = r |
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473 return nodemap |
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|
474 |
43534
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|
475 def has_node(self, node): |
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476 """return True if the node exist in the index""" |
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477 return node in self._nodemap |
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478 |
43552
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479 def rev(self, node): |
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changeset
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480 """return a revision for a node |
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481 |
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482 If the node is unknown, raise a RevlogError""" |
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483 return self._nodemap[node] |
43552
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|
484 |
43554
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|
485 def get_rev(self, node): |
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486 """return a revision for a node |
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487 |
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|
488 If the node is unknown, return None""" |
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|
489 return self._nodemap.get(node) |
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diff
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|
490 |
43533
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|
491 def _stripnodes(self, start): |
43574
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|
492 if '_nodemap' in vars(self): |
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|
493 for r in range(start, len(self)): |
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|
494 n = self[r][7] |
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|
495 del self._nodemap[n] |
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496 |
43525
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497 def clearcaches(self): |
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498 self.__dict__.pop('_nodemap', None) |
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499 |
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|
500 def __len__(self): |
38851
781b2720d2ac
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Martin von Zweigbergk <martinvonz@google.com>
parents:
38850
diff
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501 return self._lgt + len(self._extra) |
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diff
changeset
|
502 |
38850
6104b203bec8
index: replace insert(-1, e) method by append(e) method
Martin von Zweigbergk <martinvonz@google.com>
parents:
38848
diff
changeset
|
503 def append(self, tup): |
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504 if '_nodemap' in vars(self): |
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505 self._nodemap[tup[7]] = len(self) |
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506 data = self._pack_entry(len(self), tup) |
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507 self._extra.append(data) |
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508 |
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509 def _pack_entry(self, rev, entry): |
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510 assert entry[8] == 0 |
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511 assert entry[9] == 0 |
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512 return self.index_format.pack(*entry[:8]) |
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513 |
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514 def _check_index(self, i): |
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515 if not isinstance(i, int): |
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516 raise TypeError(b"expecting int indexes") |
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517 if i < 0 or i >= len(self): |
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518 raise IndexError |
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519 |
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520 def __getitem__(self, i): |
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521 if i == -1: |
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522 return self.null_item |
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523 self._check_index(i) |
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524 if i >= self._lgt: |
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525 data = self._extra[i - self._lgt] |
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526 else: |
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527 index = self._calculate_index(i) |
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528 data = self._data[index : index + self.entry_size] |
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529 r = self._unpack_entry(i, data) |
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530 if self._lgt and i == 0: |
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531 offset = revlogutils.offset_type(0, gettype(r[0])) |
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532 r = (offset,) + r[1:] |
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533 return r |
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534 |
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535 def _unpack_entry(self, rev, data): |
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536 r = self.index_format.unpack(data) |
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537 r = r + ( |
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538 0, |
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539 0, |
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540 revlog_constants.COMP_MODE_INLINE, |
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541 revlog_constants.COMP_MODE_INLINE, |
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542 ) |
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543 return r |
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544 |
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545 def pack_header(self, header): |
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546 """pack header information as binary""" |
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547 v_fmt = revlog_constants.INDEX_HEADER |
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548 return v_fmt.pack(header) |
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549 |
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550 def entry_binary(self, rev): |
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551 """return the raw binary string representing a revision""" |
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552 entry = self[rev] |
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553 p = revlog_constants.INDEX_ENTRY_V1.pack(*entry[:8]) |
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554 if rev == 0: |
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555 p = p[revlog_constants.INDEX_HEADER.size :] |
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556 return p |
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557 |
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558 |
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559 class IndexObject(BaseIndexObject): |
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560 def __init__(self, data): |
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561 assert len(data) % self.entry_size == 0, ( |
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562 len(data), |
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563 self.entry_size, |
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564 len(data) % self.entry_size, |
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565 ) |
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566 self._data = data |
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567 self._lgt = len(data) // self.entry_size |
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568 self._extra = [] |
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569 |
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570 def _calculate_index(self, i): |
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571 return i * self.entry_size |
13253 | 572 |
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573 def __delitem__(self, i): |
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574 if not isinstance(i, slice) or not i.stop == -1 or i.step is not None: |
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575 raise ValueError(b"deleting slices only supports a:-1 with step 1") |
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576 i = i.start |
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577 self._check_index(i) |
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578 self._stripnodes(i) |
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579 if i < self._lgt: |
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580 self._data = self._data[: i * self.entry_size] |
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581 self._lgt = i |
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582 self._extra = [] |
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583 else: |
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584 self._extra = self._extra[: i - self._lgt] |
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585 |
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586 |
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587 class PersistentNodeMapIndexObject(IndexObject): |
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588 """a Debug oriented class to test persistent nodemap |
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589 |
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590 We need a simple python object to test API and higher level behavior. See |
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591 the Rust implementation for more serious usage. This should be used only |
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592 through the dedicated `devel.persistent-nodemap` config. |
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593 """ |
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594 |
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595 def nodemap_data_all(self): |
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596 """Return bytes containing a full serialization of a nodemap |
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597 |
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598 The nodemap should be valid for the full set of revisions in the |
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599 index.""" |
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600 return nodemaputil.persistent_data(self) |
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601 |
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602 def nodemap_data_incremental(self): |
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603 """Return bytes containing a incremental update to persistent nodemap |
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604 |
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605 This containst the data for an append-only update of the data provided |
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606 in the last call to `update_nodemap_data`. |
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607 """ |
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608 if self._nm_root is None: |
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609 return None |
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610 docket = self._nm_docket |
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611 changed, data = nodemaputil.update_persistent_data( |
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612 self, self._nm_root, self._nm_max_idx, self._nm_docket.tip_rev |
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613 ) |
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614 |
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615 self._nm_root = self._nm_max_idx = self._nm_docket = None |
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616 return docket, changed, data |
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617 |
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618 def update_nodemap_data(self, docket, nm_data): |
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619 """provide full block of persisted binary data for a nodemap |
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620 |
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621 The data are expected to come from disk. See `nodemap_data_all` for a |
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622 produceur of such data.""" |
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623 if nm_data is not None: |
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624 self._nm_root, self._nm_max_idx = nodemaputil.parse_data(nm_data) |
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625 if self._nm_root: |
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626 self._nm_docket = docket |
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627 else: |
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628 self._nm_root = self._nm_max_idx = self._nm_docket = None |
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629 |
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630 |
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631 class InlinedIndexObject(BaseIndexObject): |
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632 def __init__(self, data, inline=0): |
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633 self._data = data |
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634 self._lgt = self._inline_scan(None) |
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635 self._inline_scan(self._lgt) |
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636 self._extra = [] |
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637 |
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638 def _inline_scan(self, lgt): |
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639 off = 0 |
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640 if lgt is not None: |
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641 self._offsets = [0] * lgt |
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642 count = 0 |
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643 while off <= len(self._data) - self.entry_size: |
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644 start = off + self.big_int_size |
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645 (s,) = struct.unpack( |
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646 b'>i', |
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647 self._data[start : start + self.int_size], |
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648 ) |
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649 if lgt is not None: |
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650 self._offsets[count] = off |
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651 count += 1 |
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652 off += self.entry_size + s |
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653 if off != len(self._data): |
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654 raise ValueError(b"corrupted data") |
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655 return count |
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656 |
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657 def __delitem__(self, i): |
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658 if not isinstance(i, slice) or not i.stop == -1 or i.step is not None: |
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659 raise ValueError(b"deleting slices only supports a:-1 with step 1") |
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660 i = i.start |
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661 self._check_index(i) |
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662 self._stripnodes(i) |
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663 if i < self._lgt: |
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664 self._offsets = self._offsets[:i] |
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665 self._lgt = i |
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666 self._extra = [] |
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667 else: |
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668 self._extra = self._extra[: i - self._lgt] |
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669 |
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670 def _calculate_index(self, i): |
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671 return self._offsets[i] |
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672 |
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673 |
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674 def parse_index2(data, inline, revlogv2=False): |
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675 if not inline: |
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676 cls = IndexObject2 if revlogv2 else IndexObject |
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677 return cls(data), None |
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678 cls = InlinedIndexObject |
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679 return cls(data, inline), (0, data) |
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680 |
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681 |
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682 def parse_index_cl_v2(data): |
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683 return IndexChangelogV2(data), None |
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684 |
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685 |
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686 class IndexObject2(IndexObject): |
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687 index_format = revlog_constants.INDEX_ENTRY_V2 |
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688 |
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689 def replace_sidedata_info( |
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690 self, |
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691 rev, |
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692 sidedata_offset, |
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693 sidedata_length, |
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694 offset_flags, |
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695 compression_mode, |
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696 ): |
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697 """ |
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698 Replace an existing index entry's sidedata offset and length with new |
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699 ones. |
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700 This cannot be used outside of the context of sidedata rewriting, |
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|
701 inside the transaction that creates the revision `rev`. |
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|
702 """ |
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703 if rev < 0: |
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704 raise KeyError |
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705 self._check_index(rev) |
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706 if rev < self._lgt: |
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707 msg = b"cannot rewrite entries outside of this transaction" |
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708 raise KeyError(msg) |
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709 else: |
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710 entry = list(self[rev]) |
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711 entry[0] = offset_flags |
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712 entry[8] = sidedata_offset |
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713 entry[9] = sidedata_length |
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714 entry[11] = compression_mode |
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47243
diff
changeset
|
715 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
|
716 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
|
717 self._extra[rev - self._lgt] = new |
46717
502e795b55ac
revlog-index: add `replace_sidedata_info` method
Raphaël Gomès <rgomes@octobus.net>
parents:
46704
diff
changeset
|
718 |
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
|
719 def _unpack_entry(self, rev, data): |
47256
2b69555e4875
revlog: introduce a compression mode for sidedata in the revlog index
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47251
diff
changeset
|
720 data = self.index_format.unpack(data) |
2b69555e4875
revlog: introduce a compression mode for sidedata in the revlog index
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47251
diff
changeset
|
721 entry = data[:10] |
2b69555e4875
revlog: introduce a compression mode for sidedata in the revlog index
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47251
diff
changeset
|
722 data_comp = data[10] & 3 |
2b69555e4875
revlog: introduce a compression mode for sidedata in the revlog index
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47251
diff
changeset
|
723 sidedata_comp = (data[10] & (3 << 2)) >> 2 |
2b69555e4875
revlog: introduce a compression mode for sidedata in the revlog index
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47251
diff
changeset
|
724 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
|
725 |
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
|
726 def _pack_entry(self, rev, entry): |
47256
2b69555e4875
revlog: introduce a compression mode for sidedata in the revlog index
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47251
diff
changeset
|
727 data = entry[:10] |
2b69555e4875
revlog: introduce a compression mode for sidedata in the revlog index
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47251
diff
changeset
|
728 data_comp = entry[10] & 3 |
2b69555e4875
revlog: introduce a compression mode for sidedata in the revlog index
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47251
diff
changeset
|
729 sidedata_comp = (entry[11] & 3) << 2 |
2b69555e4875
revlog: introduce a compression mode for sidedata in the revlog index
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47251
diff
changeset
|
730 data += (data_comp | sidedata_comp,) |
2b69555e4875
revlog: introduce a compression mode for sidedata in the revlog index
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47251
diff
changeset
|
731 |
2b69555e4875
revlog: introduce a compression mode for sidedata in the revlog index
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47251
diff
changeset
|
732 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
|
733 |
47037
d57386e5c80e
revlog: have an explicit "pack_header" method
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47034
diff
changeset
|
734 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
|
735 """return the raw binary string representing a revision""" |
0d8ff1f4ab0c
revlog: add a `entry_binary` method on index
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47012
diff
changeset
|
736 entry = self[rev] |
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
|
737 return self._pack_entry(rev, entry) |
47034
0d8ff1f4ab0c
revlog: add a `entry_binary` method on index
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47012
diff
changeset
|
738 |
47235
6b1eae313b2f
revlogv2: store version information in the docket only
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47143
diff
changeset
|
739 def pack_header(self, header): |
6b1eae313b2f
revlogv2: store version information in the docket only
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47143
diff
changeset
|
740 """pack header information as binary""" |
6b1eae313b2f
revlogv2: store version information in the docket only
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47143
diff
changeset
|
741 msg = 'version header should go in the docket, not the index: %d' |
6b1eae313b2f
revlogv2: store version information in the docket only
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47143
diff
changeset
|
742 msg %= header |
6b1eae313b2f
revlogv2: store version information in the docket only
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47143
diff
changeset
|
743 raise error.ProgrammingError(msg) |
6b1eae313b2f
revlogv2: store version information in the docket only
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47143
diff
changeset
|
744 |
46704
913485776542
revlog: introduce v2 format
Raphaël Gomès <rgomes@octobus.net>
parents:
46635
diff
changeset
|
745 |
47270
25ce16bf724b
changelogv2: use a dedicated on disk format for changelogv2
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47268
diff
changeset
|
746 class IndexChangelogV2(IndexObject2): |
25ce16bf724b
changelogv2: use a dedicated on disk format for changelogv2
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47268
diff
changeset
|
747 index_format = revlog_constants.INDEX_ENTRY_CL_V2 |
25ce16bf724b
changelogv2: use a dedicated on disk format for changelogv2
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47268
diff
changeset
|
748 |
25ce16bf724b
changelogv2: use a dedicated on disk format for changelogv2
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47268
diff
changeset
|
749 def _unpack_entry(self, rev, data, r=True): |
25ce16bf724b
changelogv2: use a dedicated on disk format for changelogv2
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47268
diff
changeset
|
750 items = self.index_format.unpack(data) |
25ce16bf724b
changelogv2: use a dedicated on disk format for changelogv2
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47268
diff
changeset
|
751 entry = items[:3] + (rev, rev) + items[3:8] |
25ce16bf724b
changelogv2: use a dedicated on disk format for changelogv2
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47268
diff
changeset
|
752 data_comp = items[8] & 3 |
25ce16bf724b
changelogv2: use a dedicated on disk format for changelogv2
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47268
diff
changeset
|
753 sidedata_comp = (items[8] >> 2) & 3 |
25ce16bf724b
changelogv2: use a dedicated on disk format for changelogv2
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47268
diff
changeset
|
754 return entry + (data_comp, sidedata_comp) |
25ce16bf724b
changelogv2: use a dedicated on disk format for changelogv2
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47268
diff
changeset
|
755 |
25ce16bf724b
changelogv2: use a dedicated on disk format for changelogv2
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47268
diff
changeset
|
756 def _pack_entry(self, rev, entry): |
25ce16bf724b
changelogv2: use a dedicated on disk format for changelogv2
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47268
diff
changeset
|
757 assert entry[3] == rev, entry[3] |
25ce16bf724b
changelogv2: use a dedicated on disk format for changelogv2
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47268
diff
changeset
|
758 assert entry[4] == rev, entry[4] |
25ce16bf724b
changelogv2: use a dedicated on disk format for changelogv2
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47268
diff
changeset
|
759 data = entry[:3] + entry[5:10] |
25ce16bf724b
changelogv2: use a dedicated on disk format for changelogv2
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47268
diff
changeset
|
760 data_comp = entry[10] & 3 |
25ce16bf724b
changelogv2: use a dedicated on disk format for changelogv2
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47268
diff
changeset
|
761 sidedata_comp = (entry[11] & 3) << 2 |
25ce16bf724b
changelogv2: use a dedicated on disk format for changelogv2
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47268
diff
changeset
|
762 data += (data_comp | sidedata_comp,) |
25ce16bf724b
changelogv2: use a dedicated on disk format for changelogv2
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47268
diff
changeset
|
763 return self.index_format.pack(*data) |
25ce16bf724b
changelogv2: use a dedicated on disk format for changelogv2
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47268
diff
changeset
|
764 |
25ce16bf724b
changelogv2: use a dedicated on disk format for changelogv2
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47268
diff
changeset
|
765 |
44313
6f9e8e142cea
nodemap: add a (python) index class for persistent nodemap testing
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
44034
diff
changeset
|
766 def parse_index_devel_nodemap(data, inline): |
45942
89a2afe31e82
formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents:
45936
diff
changeset
|
767 """like parse_index2, but alway return a PersistentNodeMapIndexObject""" |
44313
6f9e8e142cea
nodemap: add a (python) index class for persistent nodemap testing
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
44034
diff
changeset
|
768 return PersistentNodeMapIndexObject(data), None |
6f9e8e142cea
nodemap: add a (python) index class for persistent nodemap testing
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
44034
diff
changeset
|
769 |
6f9e8e142cea
nodemap: add a (python) index class for persistent nodemap testing
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
44034
diff
changeset
|
770 |
7700
f410c552fa15
pure Python implementation of parsers.c
Martin Geisler <mg@daimi.au.dk>
parents:
diff
changeset
|
771 def parse_dirstate(dmap, copymap, st): |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
39217
diff
changeset
|
772 parents = [st[:20], st[20:40]] |
17425
e95ec38f86b0
fix wording and not-completely-trivial spelling errors and bad docstrings
Mads Kiilerich <mads@kiilerich.com>
parents:
14995
diff
changeset
|
773 # dereference fields so they will be local in loop |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
774 format = b">cllll" |
7945
94d7e14cfa42
pure/parsers: fix circular imports, import mercurial modules properly
Matt Mackall <mpm@selenic.com>
parents:
7873
diff
changeset
|
775 e_size = struct.calcsize(format) |
7700
f410c552fa15
pure Python implementation of parsers.c
Martin Geisler <mg@daimi.au.dk>
parents:
diff
changeset
|
776 pos1 = 40 |
f410c552fa15
pure Python implementation of parsers.c
Martin Geisler <mg@daimi.au.dk>
parents:
diff
changeset
|
777 l = len(st) |
f410c552fa15
pure Python implementation of parsers.c
Martin Geisler <mg@daimi.au.dk>
parents:
diff
changeset
|
778 |
f410c552fa15
pure Python implementation of parsers.c
Martin Geisler <mg@daimi.au.dk>
parents:
diff
changeset
|
779 # the inner loop |
f410c552fa15
pure Python implementation of parsers.c
Martin Geisler <mg@daimi.au.dk>
parents:
diff
changeset
|
780 while pos1 < l: |
f410c552fa15
pure Python implementation of parsers.c
Martin Geisler <mg@daimi.au.dk>
parents:
diff
changeset
|
781 pos2 = pos1 + e_size |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
782 e = _unpack(b">cllll", st[pos1:pos2]) # a literal here is faster |
7700
f410c552fa15
pure Python implementation of parsers.c
Martin Geisler <mg@daimi.au.dk>
parents:
diff
changeset
|
783 pos1 = pos2 + e[4] |
f410c552fa15
pure Python implementation of parsers.c
Martin Geisler <mg@daimi.au.dk>
parents:
diff
changeset
|
784 f = st[pos2:pos1] |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
785 if b'\0' in f: |
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
786 f, c = f.split(b'\0') |
7700
f410c552fa15
pure Python implementation of parsers.c
Martin Geisler <mg@daimi.au.dk>
parents:
diff
changeset
|
787 copymap[f] = c |
47665
a4443f66be6a
dirstate-item: add a `from_v1_data` constructor
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47664
diff
changeset
|
788 dmap[f] = DirstateItem.from_v1_data(*e[:4]) |
7700
f410c552fa15
pure Python implementation of parsers.c
Martin Geisler <mg@daimi.au.dk>
parents:
diff
changeset
|
789 return parents |
18567
194e63c1ccb9
dirstate: move pure python dirstate packing to pure/parsers.py
Siddharth Agarwal <sid0@fb.com>
parents:
17425
diff
changeset
|
790 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
39217
diff
changeset
|
791 |
18567
194e63c1ccb9
dirstate: move pure python dirstate packing to pure/parsers.py
Siddharth Agarwal <sid0@fb.com>
parents:
17425
diff
changeset
|
792 def pack_dirstate(dmap, copymap, pl, now): |
194e63c1ccb9
dirstate: move pure python dirstate packing to pure/parsers.py
Siddharth Agarwal <sid0@fb.com>
parents:
17425
diff
changeset
|
793 now = int(now) |
28861
86db5cb55d46
pycompat: switch to util.stringio for py3 compat
timeless <timeless@mozdev.org>
parents:
27339
diff
changeset
|
794 cs = stringio() |
18567
194e63c1ccb9
dirstate: move pure python dirstate packing to pure/parsers.py
Siddharth Agarwal <sid0@fb.com>
parents:
17425
diff
changeset
|
795 write = cs.write |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
796 write(b"".join(pl)) |
43106
d783f945a701
py3: finish porting iteritems() to pycompat and remove source transformer
Gregory Szorc <gregory.szorc@gmail.com>
parents:
43077
diff
changeset
|
797 for f, e in pycompat.iteritems(dmap): |
47540
1a6302427eb9
dirstate-item: use need_delay when packing dirstate
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47539
diff
changeset
|
798 if e.need_delay(now): |
18567
194e63c1ccb9
dirstate: move pure python dirstate packing to pure/parsers.py
Siddharth Agarwal <sid0@fb.com>
parents:
17425
diff
changeset
|
799 # The file was last modified "simultaneously" with the current |
194e63c1ccb9
dirstate: move pure python dirstate packing to pure/parsers.py
Siddharth Agarwal <sid0@fb.com>
parents:
17425
diff
changeset
|
800 # write to dirstate (i.e. within the same second for file- |
194e63c1ccb9
dirstate: move pure python dirstate packing to pure/parsers.py
Siddharth Agarwal <sid0@fb.com>
parents:
17425
diff
changeset
|
801 # systems with a granularity of 1 sec). This commonly happens |
194e63c1ccb9
dirstate: move pure python dirstate packing to pure/parsers.py
Siddharth Agarwal <sid0@fb.com>
parents:
17425
diff
changeset
|
802 # for at least a couple of files on 'update'. |
194e63c1ccb9
dirstate: move pure python dirstate packing to pure/parsers.py
Siddharth Agarwal <sid0@fb.com>
parents:
17425
diff
changeset
|
803 # The user could change the file without changing its size |
19652
187bf2dde7c1
pack_dirstate: only invalidate mtime for files written in the last second
Siddharth Agarwal <sid0@fb.com>
parents:
18567
diff
changeset
|
804 # within the same second. Invalidate the file's mtime in |
18567
194e63c1ccb9
dirstate: move pure python dirstate packing to pure/parsers.py
Siddharth Agarwal <sid0@fb.com>
parents:
17425
diff
changeset
|
805 # dirstate, forcing future 'status' calls to compare the |
19652
187bf2dde7c1
pack_dirstate: only invalidate mtime for files written in the last second
Siddharth Agarwal <sid0@fb.com>
parents:
18567
diff
changeset
|
806 # contents of the file if the size is the same. This prevents |
187bf2dde7c1
pack_dirstate: only invalidate mtime for files written in the last second
Siddharth Agarwal <sid0@fb.com>
parents:
18567
diff
changeset
|
807 # mistakenly treating such files as clean. |
47667
d06ced90c80f
dirstate-item: use `set_possibly_dirty` in `pure.pack_dirstate`
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47666
diff
changeset
|
808 e.set_possibly_dirty() |
18567
194e63c1ccb9
dirstate: move pure python dirstate packing to pure/parsers.py
Siddharth Agarwal <sid0@fb.com>
parents:
17425
diff
changeset
|
809 |
194e63c1ccb9
dirstate: move pure python dirstate packing to pure/parsers.py
Siddharth Agarwal <sid0@fb.com>
parents:
17425
diff
changeset
|
810 if f in copymap: |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
811 f = b"%s\0%s" % (f, copymap[f]) |
47509
80dc1d452993
dirstate-entry: introduce dedicated accessors for v1 serialization
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47508
diff
changeset
|
812 e = _pack( |
80dc1d452993
dirstate-entry: introduce dedicated accessors for v1 serialization
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47508
diff
changeset
|
813 b">cllll", |
80dc1d452993
dirstate-entry: introduce dedicated accessors for v1 serialization
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47508
diff
changeset
|
814 e.v1_state(), |
80dc1d452993
dirstate-entry: introduce dedicated accessors for v1 serialization
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47508
diff
changeset
|
815 e.v1_mode(), |
80dc1d452993
dirstate-entry: introduce dedicated accessors for v1 serialization
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47508
diff
changeset
|
816 e.v1_size(), |
80dc1d452993
dirstate-entry: introduce dedicated accessors for v1 serialization
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47508
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changeset
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817 e.v1_mtime(), |
80dc1d452993
dirstate-entry: introduce dedicated accessors for v1 serialization
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47508
diff
changeset
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818 len(f), |
80dc1d452993
dirstate-entry: introduce dedicated accessors for v1 serialization
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47508
diff
changeset
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819 ) |
18567
194e63c1ccb9
dirstate: move pure python dirstate packing to pure/parsers.py
Siddharth Agarwal <sid0@fb.com>
parents:
17425
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changeset
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820 write(e) |
194e63c1ccb9
dirstate: move pure python dirstate packing to pure/parsers.py
Siddharth Agarwal <sid0@fb.com>
parents:
17425
diff
changeset
|
821 write(f) |
194e63c1ccb9
dirstate: move pure python dirstate packing to pure/parsers.py
Siddharth Agarwal <sid0@fb.com>
parents:
17425
diff
changeset
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822 return cs.getvalue() |