Mercurial > hg
annotate mercurial/pure/parsers.py @ 48159:252d2f3f0d17
dirstate-item: drop the legacy new_from_p2 constructor
Nobody is calling it anymore. Its purposes has been filled.
Differential Revision: https://phab.mercurial-scm.org/D11603
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Fri, 01 Oct 2021 09:23:28 +0200 |
parents | da304f78a0e1 |
children | 898de425bcd6 |
rev | line source |
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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 hold multiple attributes |
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52 |
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53 # about file tracking |
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54 - wc_tracked: is the file tracked by the working copy |
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55 - p1_tracked: is the file tracked in working copy first parent |
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56 - p2_info: the file has been involved in some merge operation. Either |
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57 because it was actually merged, or because the p2 version was |
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58 ahead, or because some renamed moved it there. In either case |
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59 `hg status` will want it displayed as modified. |
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60 |
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61 # about the file state expected from p1 manifest: |
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62 - mode: the file mode in p1 |
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63 - size: the file size in p1 |
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64 |
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65 These value can be set to None, which mean we don't have a meaningful value |
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66 to compare with. Either because we don't really care about them as there |
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67 `status` is known without having to look at the disk or because we don't |
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68 know these right now and a full comparison will be needed to find out if |
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69 the file is clean. |
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70 |
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71 # about the file state on disk last time we saw it: |
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72 - mtime: the last known clean mtime for the file. |
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73 |
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74 This value can be set to None if no cachable state exist. Either because we |
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75 do not care (see previous section) or because we could not cache something |
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76 yet. |
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77 """ |
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78 |
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79 _wc_tracked = attr.ib() |
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80 _p1_tracked = attr.ib() |
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81 _p2_info = attr.ib() |
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82 _mode = attr.ib() |
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83 _size = attr.ib() |
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84 _mtime = attr.ib() |
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85 |
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86 def __init__( |
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87 self, |
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88 wc_tracked=False, |
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89 p1_tracked=False, |
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90 p2_info=False, |
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91 has_meaningful_data=True, |
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92 has_meaningful_mtime=True, |
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93 parentfiledata=None, |
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94 ): |
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95 self._wc_tracked = wc_tracked |
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96 self._p1_tracked = p1_tracked |
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97 self._p2_info = p2_info |
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98 |
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99 self._mode = None |
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100 self._size = None |
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101 self._mtime = None |
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102 if parentfiledata is None: |
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103 has_meaningful_mtime = False |
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104 has_meaningful_data = False |
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105 if has_meaningful_data: |
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106 self._mode = parentfiledata[0] |
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107 self._size = parentfiledata[1] |
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108 if has_meaningful_mtime: |
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109 self._mtime = parentfiledata[2] |
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110 |
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111 @classmethod |
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112 def new_possibly_dirty(cls): |
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113 """constructor to help legacy API to build a new "possibly_dirty" item |
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114 |
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115 Should eventually be removed |
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116 """ |
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117 return cls(wc_tracked=True, p1_tracked=True) |
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118 |
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119 @classmethod |
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120 def new_normal(cls, mode, size, mtime): |
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121 """constructor to help legacy API to build a new "normal" item |
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122 |
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123 Should eventually be removed |
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124 """ |
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125 assert size != FROM_P2 |
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126 assert size != NONNORMAL |
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127 return cls( |
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128 wc_tracked=True, |
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129 p1_tracked=True, |
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130 parentfiledata=(mode, size, mtime), |
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131 ) |
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132 |
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133 @classmethod |
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134 def from_v1_data(cls, state, mode, size, mtime): |
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135 """Build a new DirstateItem object from V1 data |
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136 |
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137 Since the dirstate-v1 format is frozen, the signature of this function |
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138 is not expected to change, unlike the __init__ one. |
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139 """ |
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140 if state == b'm': |
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141 return cls(wc_tracked=True, p1_tracked=True, p2_info=True) |
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142 elif state == b'a': |
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143 return cls(wc_tracked=True) |
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144 elif state == b'r': |
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145 if size == NONNORMAL: |
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146 p1_tracked = True |
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147 p2_info = True |
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148 elif size == FROM_P2: |
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149 p1_tracked = False |
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150 p2_info = True |
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151 else: |
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152 p1_tracked = True |
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153 p2_info = False |
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154 return cls(p1_tracked=p1_tracked, p2_info=p2_info) |
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155 elif state == b'n': |
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156 if size == FROM_P2: |
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157 return cls(wc_tracked=True, p2_info=True) |
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158 elif size == NONNORMAL: |
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159 return cls.new_possibly_dirty() |
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160 elif mtime == AMBIGUOUS_TIME: |
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161 instance = cls.new_normal(mode, size, 42) |
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162 instance._mtime = None |
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163 return instance |
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164 else: |
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165 return cls.new_normal(mode, size, mtime) |
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166 else: |
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167 raise RuntimeError(b'unknown state: %s' % state) |
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168 |
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169 def set_possibly_dirty(self): |
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170 """Mark a file as "possibly dirty" |
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171 |
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172 This means the next status call will have to actually check its content |
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173 to make sure it is correct. |
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174 """ |
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175 self._mtime = None |
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176 |
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177 def set_clean(self, mode, size, mtime): |
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178 """mark a file as "clean" cancelling potential "possibly dirty call" |
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179 |
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180 Note: this function is a descendant of `dirstate.normal` and is |
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181 currently expected to be call on "normal" entry only. There are not |
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182 reason for this to not change in the future as long as the ccode is |
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183 updated to preserve the proper state of the non-normal files. |
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184 """ |
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185 self._wc_tracked = True |
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186 self._p1_tracked = True |
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187 self._mode = mode |
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188 self._size = size |
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189 self._mtime = mtime |
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190 |
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191 def set_tracked(self): |
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192 """mark a file as tracked in the working copy |
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193 |
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194 This will ultimately be called by command like `hg add`. |
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195 """ |
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196 self._wc_tracked = True |
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197 # `set_tracked` is replacing various `normallookup` call. So we mark |
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198 # the files as needing lookup |
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199 # |
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200 # Consider dropping this in the future in favor of something less broad. |
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201 self._mtime = None |
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202 |
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203 def set_untracked(self): |
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204 """mark a file as untracked in the working copy |
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205 |
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206 This will ultimately be called by command like `hg remove`. |
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207 """ |
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208 self._wc_tracked = False |
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209 self._mode = None |
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210 self._size = None |
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211 self._mtime = None |
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212 |
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213 def drop_merge_data(self): |
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214 """remove all "merge-only" from a DirstateItem |
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215 |
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216 This is to be call by the dirstatemap code when the second parent is dropped |
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217 """ |
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218 if self._p2_info: |
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219 self._p2_info = False |
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220 self._mode = None |
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221 self._size = None |
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222 self._mtime = None |
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223 |
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224 @property |
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225 def mode(self): |
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226 return self.v1_mode() |
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227 |
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228 @property |
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229 def size(self): |
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230 return self.v1_size() |
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231 |
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232 @property |
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233 def mtime(self): |
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234 return self.v1_mtime() |
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235 |
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236 @property |
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237 def state(self): |
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238 """ |
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239 States are: |
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240 n normal |
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241 m needs merging |
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242 r marked for removal |
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243 a marked for addition |
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244 |
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245 XXX This "state" is a bit obscure and mostly a direct expression of the |
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246 dirstatev1 format. It would make sense to ultimately deprecate it in |
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247 favor of the more "semantic" attributes. |
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248 """ |
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249 if not self.any_tracked: |
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250 return b'?' |
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251 return self.v1_state() |
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252 |
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253 @property |
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254 def tracked(self): |
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255 """True is the file is tracked in the working copy""" |
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256 return self._wc_tracked |
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257 |
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258 @property |
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259 def any_tracked(self): |
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260 """True is the file is tracked anywhere (wc or parents)""" |
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261 return self._wc_tracked or self._p1_tracked or self._p2_info |
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262 |
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263 @property |
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264 def added(self): |
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265 """True if the file has been added""" |
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266 return self._wc_tracked and not (self._p1_tracked or self._p2_info) |
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267 |
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268 @property |
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269 def maybe_clean(self): |
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270 """True if the file has a chance to be in the "clean" state""" |
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271 if not self._wc_tracked: |
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272 return False |
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273 elif not self._p1_tracked: |
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274 return False |
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275 elif self._p2_info: |
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276 return False |
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277 return True |
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278 |
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279 @property |
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280 def p1_tracked(self): |
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281 """True if the file is tracked in the first parent manifest""" |
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282 return self._p1_tracked |
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283 |
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284 @property |
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285 def p2_info(self): |
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286 """True if the file needed to merge or apply any input from p2 |
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287 |
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288 See the class documentation for details. |
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289 """ |
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290 return self._wc_tracked and self._p2_info |
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291 |
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292 @property |
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293 def removed(self): |
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294 """True if the file has been removed""" |
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295 return not self._wc_tracked and (self._p1_tracked or self._p2_info) |
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296 |
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297 def v1_state(self): |
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298 """return a "state" suitable for v1 serialization""" |
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299 if not self.any_tracked: |
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300 # the object has no state to record, this is -currently- |
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301 # unsupported |
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302 raise RuntimeError('untracked item') |
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303 elif self.removed: |
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304 return b'r' |
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305 elif self._p1_tracked and self._p2_info: |
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306 return b'm' |
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307 elif self.added: |
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308 return b'a' |
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309 else: |
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310 return b'n' |
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311 |
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312 def v1_mode(self): |
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313 """return a "mode" suitable for v1 serialization""" |
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314 return self._mode if self._mode is not None else 0 |
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315 |
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316 def v1_size(self): |
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317 """return a "size" suitable for v1 serialization""" |
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318 if not self.any_tracked: |
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319 # the object has no state to record, this is -currently- |
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320 # unsupported |
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321 raise RuntimeError('untracked item') |
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322 elif self.removed and self._p1_tracked and self._p2_info: |
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323 return NONNORMAL |
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324 elif self._p2_info: |
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325 return FROM_P2 |
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326 elif self.removed: |
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327 return 0 |
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328 elif self.added: |
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329 return NONNORMAL |
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330 elif self._size is None: |
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331 return NONNORMAL |
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332 else: |
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333 return self._size |
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334 |
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335 def v1_mtime(self): |
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336 """return a "mtime" suitable for v1 serialization""" |
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337 if not self.any_tracked: |
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338 # the object has no state to record, this is -currently- |
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339 # unsupported |
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340 raise RuntimeError('untracked item') |
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341 elif self.removed: |
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342 return 0 |
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343 elif self._mtime is None: |
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344 return AMBIGUOUS_TIME |
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345 elif self._p2_info: |
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346 return AMBIGUOUS_TIME |
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347 elif not self._p1_tracked: |
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348 return AMBIGUOUS_TIME |
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349 else: |
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350 return self._mtime |
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351 |
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352 def need_delay(self, now): |
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353 """True if the stored mtime would be ambiguous with the current time""" |
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354 return self.v1_state() == b'n' and self.v1_mtime() == now |
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355 |
43076
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356 |
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357 def gettype(q): |
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358 return int(q & 0xFFFF) |
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359 |
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360 |
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361 class BaseIndexObject(object): |
47268
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362 # Can I be passed to an algorithme implemented in Rust ? |
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363 rust_ext_compat = 0 |
46635
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364 # Format of an index entry according to Python's `struct` language |
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365 index_format = revlog_constants.INDEX_ENTRY_V1 |
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366 # Size of a C unsigned long long int, platform independent |
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367 big_int_size = struct.calcsize(b'>Q') |
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368 # Size of a C long int, platform independent |
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369 int_size = struct.calcsize(b'>i') |
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370 # An empty index entry, used as a default value to be overridden, or nullrev |
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371 null_item = ( |
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372 0, |
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373 0, |
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374 0, |
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375 -1, |
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376 -1, |
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377 -1, |
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378 -1, |
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379 sha1nodeconstants.nullid, |
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380 0, |
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381 0, |
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382 revlog_constants.COMP_MODE_INLINE, |
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|
383 revlog_constants.COMP_MODE_INLINE, |
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384 ) |
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385 |
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386 @util.propertycache |
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387 def entry_size(self): |
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388 return self.index_format.size |
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389 |
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390 @property |
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391 def nodemap(self): |
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392 msg = b"index.nodemap is deprecated, use index.[has_node|rev|get_rev]" |
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393 util.nouideprecwarn(msg, b'5.3', stacklevel=2) |
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394 return self._nodemap |
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395 |
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396 @util.propertycache |
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397 def _nodemap(self): |
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398 nodemap = nodemaputil.NodeMap({sha1nodeconstants.nullid: nullrev}) |
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399 for r in range(0, len(self)): |
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400 n = self[r][7] |
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401 nodemap[n] = r |
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402 return nodemap |
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403 |
43534
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|
404 def has_node(self, node): |
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405 """return True if the node exist in the index""" |
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406 return node in self._nodemap |
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407 |
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408 def rev(self, node): |
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409 """return a revision for a node |
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410 |
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411 If the node is unknown, raise a RevlogError""" |
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412 return self._nodemap[node] |
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413 |
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414 def get_rev(self, node): |
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415 """return a revision for a node |
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416 |
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417 If the node is unknown, return None""" |
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418 return self._nodemap.get(node) |
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419 |
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420 def _stripnodes(self, start): |
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421 if '_nodemap' in vars(self): |
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422 for r in range(start, len(self)): |
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423 n = self[r][7] |
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424 del self._nodemap[n] |
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425 |
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426 def clearcaches(self): |
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427 self.__dict__.pop('_nodemap', None) |
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428 |
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429 def __len__(self): |
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430 return self._lgt + len(self._extra) |
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431 |
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432 def append(self, tup): |
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433 if '_nodemap' in vars(self): |
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434 self._nodemap[tup[7]] = len(self) |
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435 data = self._pack_entry(len(self), tup) |
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436 self._extra.append(data) |
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437 |
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438 def _pack_entry(self, rev, entry): |
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439 assert entry[8] == 0 |
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440 assert entry[9] == 0 |
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441 return self.index_format.pack(*entry[:8]) |
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442 |
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443 def _check_index(self, i): |
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444 if not isinstance(i, int): |
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445 raise TypeError(b"expecting int indexes") |
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446 if i < 0 or i >= len(self): |
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447 raise IndexError |
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448 |
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449 def __getitem__(self, i): |
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450 if i == -1: |
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451 return self.null_item |
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452 self._check_index(i) |
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453 if i >= self._lgt: |
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454 data = self._extra[i - self._lgt] |
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455 else: |
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456 index = self._calculate_index(i) |
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457 data = self._data[index : index + self.entry_size] |
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458 r = self._unpack_entry(i, data) |
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459 if self._lgt and i == 0: |
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460 offset = revlogutils.offset_type(0, gettype(r[0])) |
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461 r = (offset,) + r[1:] |
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462 return r |
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463 |
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464 def _unpack_entry(self, rev, data): |
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465 r = self.index_format.unpack(data) |
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466 r = r + ( |
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467 0, |
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468 0, |
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469 revlog_constants.COMP_MODE_INLINE, |
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470 revlog_constants.COMP_MODE_INLINE, |
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471 ) |
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472 return r |
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473 |
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474 def pack_header(self, header): |
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475 """pack header information as binary""" |
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476 v_fmt = revlog_constants.INDEX_HEADER |
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477 return v_fmt.pack(header) |
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478 |
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479 def entry_binary(self, rev): |
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480 """return the raw binary string representing a revision""" |
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481 entry = self[rev] |
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482 p = revlog_constants.INDEX_ENTRY_V1.pack(*entry[:8]) |
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483 if rev == 0: |
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484 p = p[revlog_constants.INDEX_HEADER.size :] |
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485 return p |
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486 |
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487 |
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488 class IndexObject(BaseIndexObject): |
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489 def __init__(self, data): |
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490 assert len(data) % self.entry_size == 0, ( |
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491 len(data), |
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492 self.entry_size, |
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493 len(data) % self.entry_size, |
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494 ) |
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495 self._data = data |
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496 self._lgt = len(data) // self.entry_size |
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497 self._extra = [] |
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498 |
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499 def _calculate_index(self, i): |
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500 return i * self.entry_size |
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502 def __delitem__(self, i): |
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503 if not isinstance(i, slice) or not i.stop == -1 or i.step is not None: |
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504 raise ValueError(b"deleting slices only supports a:-1 with step 1") |
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505 i = i.start |
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506 self._check_index(i) |
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507 self._stripnodes(i) |
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508 if i < self._lgt: |
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509 self._data = self._data[: i * self.entry_size] |
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510 self._lgt = i |
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511 self._extra = [] |
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512 else: |
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513 self._extra = self._extra[: i - self._lgt] |
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514 |
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515 |
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516 class PersistentNodeMapIndexObject(IndexObject): |
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517 """a Debug oriented class to test persistent nodemap |
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518 |
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519 We need a simple python object to test API and higher level behavior. See |
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520 the Rust implementation for more serious usage. This should be used only |
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521 through the dedicated `devel.persistent-nodemap` config. |
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522 """ |
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523 |
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524 def nodemap_data_all(self): |
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525 """Return bytes containing a full serialization of a nodemap |
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526 |
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527 The nodemap should be valid for the full set of revisions in the |
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528 index.""" |
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529 return nodemaputil.persistent_data(self) |
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530 |
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531 def nodemap_data_incremental(self): |
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532 """Return bytes containing a incremental update to persistent nodemap |
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533 |
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534 This containst the data for an append-only update of the data provided |
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535 in the last call to `update_nodemap_data`. |
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536 """ |
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537 if self._nm_root is None: |
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538 return None |
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539 docket = self._nm_docket |
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540 changed, data = nodemaputil.update_persistent_data( |
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541 self, self._nm_root, self._nm_max_idx, self._nm_docket.tip_rev |
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542 ) |
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543 |
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544 self._nm_root = self._nm_max_idx = self._nm_docket = None |
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545 return docket, changed, data |
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546 |
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547 def update_nodemap_data(self, docket, nm_data): |
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548 """provide full block of persisted binary data for a nodemap |
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549 |
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550 The data are expected to come from disk. See `nodemap_data_all` for a |
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551 produceur of such data.""" |
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552 if nm_data is not None: |
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553 self._nm_root, self._nm_max_idx = nodemaputil.parse_data(nm_data) |
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554 if self._nm_root: |
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555 self._nm_docket = docket |
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556 else: |
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557 self._nm_root = self._nm_max_idx = self._nm_docket = None |
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558 |
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559 |
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560 class InlinedIndexObject(BaseIndexObject): |
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561 def __init__(self, data, inline=0): |
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562 self._data = data |
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563 self._lgt = self._inline_scan(None) |
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564 self._inline_scan(self._lgt) |
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565 self._extra = [] |
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566 |
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567 def _inline_scan(self, lgt): |
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568 off = 0 |
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569 if lgt is not None: |
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570 self._offsets = [0] * lgt |
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571 count = 0 |
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572 while off <= len(self._data) - self.entry_size: |
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573 start = off + self.big_int_size |
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574 (s,) = struct.unpack( |
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575 b'>i', |
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576 self._data[start : start + self.int_size], |
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577 ) |
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578 if lgt is not None: |
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579 self._offsets[count] = off |
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580 count += 1 |
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581 off += self.entry_size + s |
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582 if off != len(self._data): |
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583 raise ValueError(b"corrupted data") |
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584 return count |
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585 |
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586 def __delitem__(self, i): |
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587 if not isinstance(i, slice) or not i.stop == -1 or i.step is not None: |
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588 raise ValueError(b"deleting slices only supports a:-1 with step 1") |
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589 i = i.start |
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590 self._check_index(i) |
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591 self._stripnodes(i) |
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592 if i < self._lgt: |
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593 self._offsets = self._offsets[:i] |
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594 self._lgt = i |
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595 self._extra = [] |
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596 else: |
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597 self._extra = self._extra[: i - self._lgt] |
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598 |
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599 def _calculate_index(self, i): |
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600 return self._offsets[i] |
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601 |
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602 |
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603 def parse_index2(data, inline, revlogv2=False): |
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604 if not inline: |
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605 cls = IndexObject2 if revlogv2 else IndexObject |
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606 return cls(data), None |
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607 cls = InlinedIndexObject |
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608 return cls(data, inline), (0, data) |
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609 |
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610 |
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611 def parse_index_cl_v2(data): |
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612 return IndexChangelogV2(data), None |
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613 |
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614 |
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615 class IndexObject2(IndexObject): |
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616 index_format = revlog_constants.INDEX_ENTRY_V2 |
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617 |
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618 def replace_sidedata_info( |
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revlog: compress sidedata when doing "post-pull" sidedata update
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47256
diff
changeset
|
619 self, |
07641bafa646
revlog: compress sidedata when doing "post-pull" sidedata update
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diff
changeset
|
620 rev, |
07641bafa646
revlog: compress sidedata when doing "post-pull" sidedata update
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47256
diff
changeset
|
621 sidedata_offset, |
07641bafa646
revlog: compress sidedata when doing "post-pull" sidedata update
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diff
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|
622 sidedata_length, |
07641bafa646
revlog: compress sidedata when doing "post-pull" sidedata update
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47256
diff
changeset
|
623 offset_flags, |
07641bafa646
revlog: compress sidedata when doing "post-pull" sidedata update
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parents:
47256
diff
changeset
|
624 compression_mode, |
47078
223b47235d1c
sidedata: enable sidedata computers to optionally rewrite flags
Raphaël Gomès <rgomes@octobus.net>
parents:
47037
diff
changeset
|
625 ): |
46717
502e795b55ac
revlog-index: add `replace_sidedata_info` method
Raphaël Gomès <rgomes@octobus.net>
parents:
46704
diff
changeset
|
626 """ |
502e795b55ac
revlog-index: add `replace_sidedata_info` method
Raphaël Gomès <rgomes@octobus.net>
parents:
46704
diff
changeset
|
627 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>
parents:
46704
diff
changeset
|
628 ones. |
502e795b55ac
revlog-index: add `replace_sidedata_info` method
Raphaël Gomès <rgomes@octobus.net>
parents:
46704
diff
changeset
|
629 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
|
630 inside the transaction that creates the revision `rev`. |
46717
502e795b55ac
revlog-index: add `replace_sidedata_info` method
Raphaël Gomès <rgomes@octobus.net>
parents:
46704
diff
changeset
|
631 """ |
47243
3b04cf976c67
revlog: use `rev` instead of `i` in replace_sidedata_info
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parents:
47235
diff
changeset
|
632 if rev < 0: |
46717
502e795b55ac
revlog-index: add `replace_sidedata_info` method
Raphaël Gomès <rgomes@octobus.net>
parents:
46704
diff
changeset
|
633 raise KeyError |
47243
3b04cf976c67
revlog: use `rev` instead of `i` in replace_sidedata_info
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47235
diff
changeset
|
634 self._check_index(rev) |
47244
78230d036e5d
revlog: simplify the replace_sidedata_info code
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parents:
47243
diff
changeset
|
635 if rev < self._lgt: |
46717
502e795b55ac
revlog-index: add `replace_sidedata_info` method
Raphaël Gomès <rgomes@octobus.net>
parents:
46704
diff
changeset
|
636 msg = b"cannot rewrite entries outside of this transaction" |
502e795b55ac
revlog-index: add `replace_sidedata_info` method
Raphaël Gomès <rgomes@octobus.net>
parents:
46704
diff
changeset
|
637 raise KeyError(msg) |
47244
78230d036e5d
revlog: simplify the replace_sidedata_info code
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47243
diff
changeset
|
638 else: |
78230d036e5d
revlog: simplify the replace_sidedata_info code
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parents:
47243
diff
changeset
|
639 entry = list(self[rev]) |
78230d036e5d
revlog: simplify the replace_sidedata_info code
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parents:
47243
diff
changeset
|
640 entry[0] = offset_flags |
78230d036e5d
revlog: simplify the replace_sidedata_info code
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parents:
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diff
changeset
|
641 entry[8] = sidedata_offset |
78230d036e5d
revlog: simplify the replace_sidedata_info code
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parents:
47243
diff
changeset
|
642 entry[9] = sidedata_length |
47259
07641bafa646
revlog: compress sidedata when doing "post-pull" sidedata update
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parents:
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diff
changeset
|
643 entry[11] = compression_mode |
47244
78230d036e5d
revlog: simplify the replace_sidedata_info code
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parents:
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diff
changeset
|
644 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
|
645 new = self._pack_entry(rev, entry) |
47244
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revlog: simplify the replace_sidedata_info code
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
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diff
changeset
|
646 self._extra[rev - self._lgt] = new |
46717
502e795b55ac
revlog-index: add `replace_sidedata_info` method
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parents:
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diff
changeset
|
647 |
47267
55d280bc59fa
revlog: pass around the `rev` we deal with when packing/unpacking entry
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parents:
47262
diff
changeset
|
648 def _unpack_entry(self, rev, data): |
47256
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revlog: introduce a compression mode for sidedata in the revlog index
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parents:
47251
diff
changeset
|
649 data = self.index_format.unpack(data) |
2b69555e4875
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parents:
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diff
changeset
|
650 entry = data[:10] |
2b69555e4875
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parents:
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diff
changeset
|
651 data_comp = data[10] & 3 |
2b69555e4875
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parents:
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diff
changeset
|
652 sidedata_comp = (data[10] & (3 << 2)) >> 2 |
2b69555e4875
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parents:
47251
diff
changeset
|
653 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
|
654 |
47267
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revlog: pass around the `rev` we deal with when packing/unpacking entry
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parents:
47262
diff
changeset
|
655 def _pack_entry(self, rev, entry): |
47256
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diff
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|
656 data = entry[:10] |
2b69555e4875
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diff
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|
657 data_comp = entry[10] & 3 |
2b69555e4875
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diff
changeset
|
658 sidedata_comp = (entry[11] & 3) << 2 |
2b69555e4875
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changeset
|
659 data += (data_comp | sidedata_comp,) |
2b69555e4875
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parents:
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diff
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|
660 |
2b69555e4875
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parents:
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diff
changeset
|
661 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
|
662 |
47037
d57386e5c80e
revlog: have an explicit "pack_header" method
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47034
diff
changeset
|
663 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
|
664 """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
|
665 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
|
666 return self._pack_entry(rev, entry) |
47034
0d8ff1f4ab0c
revlog: add a `entry_binary` method on index
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parents:
47012
diff
changeset
|
667 |
47235
6b1eae313b2f
revlogv2: store version information in the docket only
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47143
diff
changeset
|
668 def pack_header(self, header): |
6b1eae313b2f
revlogv2: store version information in the docket only
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parents:
47143
diff
changeset
|
669 """pack header information as binary""" |
6b1eae313b2f
revlogv2: store version information in the docket only
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parents:
47143
diff
changeset
|
670 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
|
671 msg %= header |
6b1eae313b2f
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parents:
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diff
changeset
|
672 raise error.ProgrammingError(msg) |
6b1eae313b2f
revlogv2: store version information in the docket only
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parents:
47143
diff
changeset
|
673 |
46704
913485776542
revlog: introduce v2 format
Raphaël Gomès <rgomes@octobus.net>
parents:
46635
diff
changeset
|
674 |
47270
25ce16bf724b
changelogv2: use a dedicated on disk format for changelogv2
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47268
diff
changeset
|
675 class IndexChangelogV2(IndexObject2): |
25ce16bf724b
changelogv2: use a dedicated on disk format for changelogv2
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parents:
47268
diff
changeset
|
676 index_format = revlog_constants.INDEX_ENTRY_CL_V2 |
25ce16bf724b
changelogv2: use a dedicated on disk format for changelogv2
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parents:
47268
diff
changeset
|
677 |
25ce16bf724b
changelogv2: use a dedicated on disk format for changelogv2
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47268
diff
changeset
|
678 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
|
679 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
|
680 entry = items[:3] + (rev, rev) + items[3:8] |
25ce16bf724b
changelogv2: use a dedicated on disk format for changelogv2
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parents:
47268
diff
changeset
|
681 data_comp = items[8] & 3 |
25ce16bf724b
changelogv2: use a dedicated on disk format for changelogv2
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parents:
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diff
changeset
|
682 sidedata_comp = (items[8] >> 2) & 3 |
25ce16bf724b
changelogv2: use a dedicated on disk format for changelogv2
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parents:
47268
diff
changeset
|
683 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
|
684 |
25ce16bf724b
changelogv2: use a dedicated on disk format for changelogv2
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47268
diff
changeset
|
685 def _pack_entry(self, rev, entry): |
25ce16bf724b
changelogv2: use a dedicated on disk format for changelogv2
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parents:
47268
diff
changeset
|
686 assert entry[3] == rev, entry[3] |
25ce16bf724b
changelogv2: use a dedicated on disk format for changelogv2
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parents:
47268
diff
changeset
|
687 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
|
688 data = entry[:3] + entry[5:10] |
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changelogv2: use a dedicated on disk format for changelogv2
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47268
diff
changeset
|
689 data_comp = entry[10] & 3 |
25ce16bf724b
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47268
diff
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|
690 sidedata_comp = (entry[11] & 3) << 2 |
25ce16bf724b
changelogv2: use a dedicated on disk format for changelogv2
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parents:
47268
diff
changeset
|
691 data += (data_comp | sidedata_comp,) |
25ce16bf724b
changelogv2: use a dedicated on disk format for changelogv2
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parents:
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diff
changeset
|
692 return self.index_format.pack(*data) |
25ce16bf724b
changelogv2: use a dedicated on disk format for changelogv2
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parents:
47268
diff
changeset
|
693 |
25ce16bf724b
changelogv2: use a dedicated on disk format for changelogv2
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47268
diff
changeset
|
694 |
44313
6f9e8e142cea
nodemap: add a (python) index class for persistent nodemap testing
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
44034
diff
changeset
|
695 def parse_index_devel_nodemap(data, inline): |
45942
89a2afe31e82
formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents:
45936
diff
changeset
|
696 """like parse_index2, but alway return a PersistentNodeMapIndexObject""" |
44313
6f9e8e142cea
nodemap: add a (python) index class for persistent nodemap testing
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parents:
44034
diff
changeset
|
697 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
|
698 |
6f9e8e142cea
nodemap: add a (python) index class for persistent nodemap testing
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
44034
diff
changeset
|
699 |
7700
f410c552fa15
pure Python implementation of parsers.c
Martin Geisler <mg@daimi.au.dk>
parents:
diff
changeset
|
700 def parse_dirstate(dmap, copymap, st): |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
39217
diff
changeset
|
701 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
|
702 # 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
|
703 format = b">cllll" |
7945
94d7e14cfa42
pure/parsers: fix circular imports, import mercurial modules properly
Matt Mackall <mpm@selenic.com>
parents:
7873
diff
changeset
|
704 e_size = struct.calcsize(format) |
7700
f410c552fa15
pure Python implementation of parsers.c
Martin Geisler <mg@daimi.au.dk>
parents:
diff
changeset
|
705 pos1 = 40 |
f410c552fa15
pure Python implementation of parsers.c
Martin Geisler <mg@daimi.au.dk>
parents:
diff
changeset
|
706 l = len(st) |
f410c552fa15
pure Python implementation of parsers.c
Martin Geisler <mg@daimi.au.dk>
parents:
diff
changeset
|
707 |
f410c552fa15
pure Python implementation of parsers.c
Martin Geisler <mg@daimi.au.dk>
parents:
diff
changeset
|
708 # the inner loop |
f410c552fa15
pure Python implementation of parsers.c
Martin Geisler <mg@daimi.au.dk>
parents:
diff
changeset
|
709 while pos1 < l: |
f410c552fa15
pure Python implementation of parsers.c
Martin Geisler <mg@daimi.au.dk>
parents:
diff
changeset
|
710 pos2 = pos1 + e_size |
43077
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formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
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diff
changeset
|
711 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
|
712 pos1 = pos2 + e[4] |
f410c552fa15
pure Python implementation of parsers.c
Martin Geisler <mg@daimi.au.dk>
parents:
diff
changeset
|
713 f = st[pos2:pos1] |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
714 if b'\0' in f: |
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
715 f, c = f.split(b'\0') |
7700
f410c552fa15
pure Python implementation of parsers.c
Martin Geisler <mg@daimi.au.dk>
parents:
diff
changeset
|
716 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
|
717 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
|
718 return parents |
18567
194e63c1ccb9
dirstate: move pure python dirstate packing to pure/parsers.py
Siddharth Agarwal <sid0@fb.com>
parents:
17425
diff
changeset
|
719 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
39217
diff
changeset
|
720 |
18567
194e63c1ccb9
dirstate: move pure python dirstate packing to pure/parsers.py
Siddharth Agarwal <sid0@fb.com>
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721 def pack_dirstate(dmap, copymap, pl, now): |
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722 now = int(now) |
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723 cs = stringio() |
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724 write = cs.write |
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725 write(b"".join(pl)) |
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726 for f, e in pycompat.iteritems(dmap): |
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727 if e.need_delay(now): |
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728 # The file was last modified "simultaneously" with the current |
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729 # write to dirstate (i.e. within the same second for file- |
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730 # systems with a granularity of 1 sec). This commonly happens |
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731 # for at least a couple of files on 'update'. |
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732 # The user could change the file without changing its size |
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733 # within the same second. Invalidate the file's mtime in |
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734 # dirstate, forcing future 'status' calls to compare the |
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735 # contents of the file if the size is the same. This prevents |
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736 # mistakenly treating such files as clean. |
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737 e.set_possibly_dirty() |
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738 |
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739 if f in copymap: |
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740 f = b"%s\0%s" % (f, copymap[f]) |
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741 e = _pack( |
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742 b">cllll", |
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743 e.v1_state(), |
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744 e.v1_mode(), |
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745 e.v1_size(), |
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746 e.v1_mtime(), |
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747 len(f), |
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748 ) |
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749 write(e) |
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750 write(f) |
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751 return cs.getvalue() |