Mercurial > hg
annotate mercurial/bundle2.py @ 48673:576040155dba
arbitraryfilectx: use our existing helpers for reading and writing files
Differential Revision: https://phab.mercurial-scm.org/D12090
author | Martin von Zweigbergk <martinvonz@google.com> |
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date | Wed, 26 Jan 2022 15:32:18 -0800 |
parents | a3cf460a6b1b |
children | 6000f5b25c9b d9ed7c5e915d |
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1 # bundle2.py - generic container format to transmit arbitrary data. |
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2 # |
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3 # Copyright 2013 Facebook, Inc. |
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4 # |
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5 # This software may be used and distributed according to the terms of the |
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6 # GNU General Public License version 2 or any later version. |
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7 """Handling of the new bundle2 format |
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8 |
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9 The goal of bundle2 is to act as an atomically packet to transmit a set of |
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10 payloads in an application agnostic way. It consist in a sequence of "parts" |
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11 that will be handed to and processed by the application layer. |
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12 |
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13 |
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14 General format architecture |
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15 =========================== |
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16 |
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17 The format is architectured as follow |
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18 |
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19 - magic string |
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20 - stream level parameters |
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21 - payload parts (any number) |
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22 - end of stream marker. |
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23 |
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24 the Binary format |
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25 ============================ |
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26 |
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27 All numbers are unsigned and big-endian. |
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28 |
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29 stream level parameters |
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30 ------------------------ |
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31 |
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32 Binary format is as follow |
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33 |
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34 :params size: int32 |
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35 |
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36 The total number of Bytes used by the parameters |
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37 |
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38 :params value: arbitrary number of Bytes |
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39 |
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40 A blob of `params size` containing the serialized version of all stream level |
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41 parameters. |
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42 |
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43 The blob contains a space separated list of parameters. Parameters with value |
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44 are stored in the form `<name>=<value>`. Both name and value are urlquoted. |
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45 |
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46 Empty name are obviously forbidden. |
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47 |
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48 Name MUST start with a letter. If this first letter is lower case, the |
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49 parameter is advisory and can be safely ignored. However when the first |
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50 letter is capital, the parameter is mandatory and the bundling process MUST |
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51 stop if he is not able to proceed it. |
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53 Stream parameters use a simple textual format for two main reasons: |
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54 |
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55 - Stream level parameters should remain simple and we want to discourage any |
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56 crazy usage. |
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57 - Textual data allow easy human inspection of a bundle2 header in case of |
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58 troubles. |
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59 |
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60 Any Applicative level options MUST go into a bundle2 part instead. |
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61 |
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62 Payload part |
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63 ------------------------ |
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64 |
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65 Binary format is as follow |
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66 |
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67 :header size: int32 |
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68 |
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69 The total number of Bytes used by the part header. When the header is empty |
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70 (size = 0) this is interpreted as the end of stream marker. |
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71 |
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72 :header: |
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73 |
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74 The header defines how to interpret the part. It contains two piece of |
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75 data: the part type, and the part parameters. |
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76 |
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77 The part type is used to route an application level handler, that can |
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78 interpret payload. |
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79 |
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80 Part parameters are passed to the application level handler. They are |
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81 meant to convey information that will help the application level object to |
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82 interpret the part payload. |
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83 |
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84 The binary format of the header is has follow |
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85 |
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86 :typesize: (one byte) |
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87 |
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88 :parttype: alphanumerical part name (restricted to [a-zA-Z0-9_:-]*) |
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89 |
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90 :partid: A 32bits integer (unique in the bundle) that can be used to refer |
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91 to this part. |
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92 |
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93 :parameters: |
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94 |
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95 Part's parameter may have arbitrary content, the binary structure is:: |
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96 |
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97 <mandatory-count><advisory-count><param-sizes><param-data> |
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98 |
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99 :mandatory-count: 1 byte, number of mandatory parameters |
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100 |
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101 :advisory-count: 1 byte, number of advisory parameters |
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102 |
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103 :param-sizes: |
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104 |
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105 N couple of bytes, where N is the total number of parameters. Each |
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106 couple contains (<size-of-key>, <size-of-value) for one parameter. |
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107 |
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108 :param-data: |
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109 |
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110 A blob of bytes from which each parameter key and value can be |
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111 retrieved using the list of size couples stored in the previous |
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112 field. |
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113 |
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114 Mandatory parameters comes first, then the advisory ones. |
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115 |
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116 Each parameter's key MUST be unique within the part. |
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117 |
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118 :payload: |
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119 |
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120 payload is a series of `<chunksize><chunkdata>`. |
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121 |
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122 `chunksize` is an int32, `chunkdata` are plain bytes (as much as |
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123 `chunksize` says)` The payload part is concluded by a zero size chunk. |
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124 |
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125 The current implementation always produces either zero or one chunk. |
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126 This is an implementation limitation that will ultimately be lifted. |
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127 |
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128 `chunksize` can be negative to trigger special case processing. No such |
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129 processing is in place yet. |
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130 |
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131 Bundle processing |
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132 ============================ |
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133 |
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134 Each part is processed in order using a "part handler". Handler are registered |
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135 for a certain part type. |
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136 |
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137 The matching of a part to its handler is case insensitive. The case of the |
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138 part type is used to know if a part is mandatory or advisory. If the Part type |
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139 contains any uppercase char it is considered mandatory. When no handler is |
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140 known for a Mandatory part, the process is aborted and an exception is raised. |
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141 If the part is advisory and no handler is known, the part is ignored. When the |
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142 process is aborted, the full bundle is still read from the stream to keep the |
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143 channel usable. But none of the part read from an abort are processed. In the |
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144 future, dropping the stream may become an option for channel we do not care to |
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145 preserve. |
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146 """ |
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147 |
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148 from __future__ import absolute_import, division |
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149 |
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150 import collections |
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151 import errno |
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152 import os |
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153 import re |
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154 import string |
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155 import struct |
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156 import sys |
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157 |
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158 from .i18n import _ |
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159 from .node import ( |
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160 hex, |
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161 short, |
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162 ) |
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163 from . import ( |
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164 bookmarks, |
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165 changegroup, |
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166 encoding, |
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167 error, |
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168 obsolete, |
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169 phases, |
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170 pushkey, |
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171 pycompat, |
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172 requirements, |
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173 scmutil, |
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174 streamclone, |
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175 tags, |
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176 url, |
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177 util, |
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178 ) |
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179 from .utils import ( |
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180 stringutil, |
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181 urlutil, |
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182 ) |
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183 from .interfaces import repository |
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184 |
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185 urlerr = util.urlerr |
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186 urlreq = util.urlreq |
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187 |
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188 _pack = struct.pack |
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189 _unpack = struct.unpack |
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190 |
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191 _fstreamparamsize = b'>i' |
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192 _fpartheadersize = b'>i' |
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193 _fparttypesize = b'>B' |
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194 _fpartid = b'>I' |
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195 _fpayloadsize = b'>i' |
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196 _fpartparamcount = b'>BB' |
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197 |
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198 preferedchunksize = 32768 |
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199 |
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200 _parttypeforbidden = re.compile(b'[^a-zA-Z0-9_:-]') |
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201 |
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202 |
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203 def outdebug(ui, message): |
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204 """debug regarding output stream (bundling)""" |
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205 if ui.configbool(b'devel', b'bundle2.debug'): |
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206 ui.debug(b'bundle2-output: %s\n' % message) |
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207 |
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208 |
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209 def indebug(ui, message): |
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210 """debug on input stream (unbundling)""" |
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211 if ui.configbool(b'devel', b'bundle2.debug'): |
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212 ui.debug(b'bundle2-input: %s\n' % message) |
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213 |
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214 |
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215 def validateparttype(parttype): |
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216 """raise ValueError if a parttype contains invalid character""" |
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217 if _parttypeforbidden.search(parttype): |
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218 raise ValueError(parttype) |
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219 |
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220 |
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221 def _makefpartparamsizes(nbparams): |
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222 """return a struct format to read part parameter sizes |
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223 |
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224 The number parameters is variable so we need to build that format |
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225 dynamically. |
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226 """ |
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227 return b'>' + (b'BB' * nbparams) |
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228 |
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229 |
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230 parthandlermapping = {} |
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231 |
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232 |
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233 def parthandler(parttype, params=()): |
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234 """decorator that register a function as a bundle2 part handler |
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235 |
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236 eg:: |
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237 |
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238 @parthandler('myparttype', ('mandatory', 'param', 'handled')) |
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239 def myparttypehandler(...): |
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240 '''process a part of type "my part".''' |
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241 ... |
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242 """ |
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243 validateparttype(parttype) |
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244 |
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245 def _decorator(func): |
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246 lparttype = parttype.lower() # enforce lower case matching. |
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247 assert lparttype not in parthandlermapping |
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248 parthandlermapping[lparttype] = func |
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249 func.params = frozenset(params) |
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250 return func |
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251 |
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252 return _decorator |
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253 |
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254 |
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255 class unbundlerecords(object): |
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256 """keep record of what happens during and unbundle |
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257 |
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258 New records are added using `records.add('cat', obj)`. Where 'cat' is a |
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259 category of record and obj is an arbitrary object. |
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260 |
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261 `records['cat']` will return all entries of this category 'cat'. |
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262 |
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263 Iterating on the object itself will yield `('category', obj)` tuples |
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264 for all entries. |
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265 |
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266 All iterations happens in chronological order. |
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267 """ |
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268 |
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269 def __init__(self): |
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270 self._categories = {} |
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271 self._sequences = [] |
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272 self._replies = {} |
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273 |
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274 def add(self, category, entry, inreplyto=None): |
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275 """add a new record of a given category. |
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276 |
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277 The entry can then be retrieved in the list returned by |
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278 self['category'].""" |
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279 self._categories.setdefault(category, []).append(entry) |
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280 self._sequences.append((category, entry)) |
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281 if inreplyto is not None: |
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282 self.getreplies(inreplyto).add(category, entry) |
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283 |
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284 def getreplies(self, partid): |
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285 """get the records that are replies to a specific part""" |
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286 return self._replies.setdefault(partid, unbundlerecords()) |
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287 |
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288 def __getitem__(self, cat): |
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289 return tuple(self._categories.get(cat, ())) |
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290 |
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291 def __iter__(self): |
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292 return iter(self._sequences) |
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293 |
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294 def __len__(self): |
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295 return len(self._sequences) |
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296 |
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297 def __nonzero__(self): |
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298 return bool(self._sequences) |
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299 |
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300 __bool__ = __nonzero__ |
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301 |
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302 |
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303 class bundleoperation(object): |
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304 """an object that represents a single bundling process |
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305 |
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306 Its purpose is to carry unbundle-related objects and states. |
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307 |
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308 A new object should be created at the beginning of each bundle processing. |
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309 The object is to be returned by the processing function. |
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310 |
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311 The object has very little content now it will ultimately contain: |
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312 * an access to the repo the bundle is applied to, |
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313 * a ui object, |
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314 * a way to retrieve a transaction to add changes to the repo, |
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315 * a way to record the result of processing each part, |
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316 * a way to construct a bundle response when applicable. |
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317 """ |
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318 |
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319 def __init__(self, repo, transactiongetter, captureoutput=True, source=b''): |
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320 self.repo = repo |
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321 self.ui = repo.ui |
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322 self.records = unbundlerecords() |
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323 self.reply = None |
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324 self.captureoutput = captureoutput |
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325 self.hookargs = {} |
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326 self._gettransaction = transactiongetter |
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327 # carries value that can modify part behavior |
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328 self.modes = {} |
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329 self.source = source |
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330 |
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331 def gettransaction(self): |
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332 transaction = self._gettransaction() |
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333 |
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334 if self.hookargs: |
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335 # the ones added to the transaction supercede those added |
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336 # to the operation. |
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337 self.hookargs.update(transaction.hookargs) |
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338 transaction.hookargs = self.hookargs |
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339 |
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340 # mark the hookargs as flushed. further attempts to add to |
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341 # hookargs will result in an abort. |
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342 self.hookargs = None |
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343 |
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344 return transaction |
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345 |
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346 def addhookargs(self, hookargs): |
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347 if self.hookargs is None: |
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348 raise error.ProgrammingError( |
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349 b'attempted to add hookargs to ' |
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350 b'operation after transaction started' |
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351 ) |
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352 self.hookargs.update(hookargs) |
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353 |
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354 |
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355 class TransactionUnavailable(RuntimeError): |
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356 pass |
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357 |
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358 |
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359 def _notransaction(): |
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360 """default method to get a transaction while processing a bundle |
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361 |
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362 Raise an exception to highlight the fact that no transaction was expected |
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363 to be created""" |
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364 raise TransactionUnavailable() |
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365 |
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366 |
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367 def applybundle(repo, unbundler, tr, source, url=None, **kwargs): |
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368 # transform me into unbundler.apply() as soon as the freeze is lifted |
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369 if isinstance(unbundler, unbundle20): |
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370 tr.hookargs[b'bundle2'] = b'1' |
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371 if source is not None and b'source' not in tr.hookargs: |
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372 tr.hookargs[b'source'] = source |
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373 if url is not None and b'url' not in tr.hookargs: |
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374 tr.hookargs[b'url'] = url |
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375 return processbundle(repo, unbundler, lambda: tr, source=source) |
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376 else: |
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377 # the transactiongetter won't be used, but we might as well set it |
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378 op = bundleoperation(repo, lambda: tr, source=source) |
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379 _processchangegroup(op, unbundler, tr, source, url, **kwargs) |
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380 return op |
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381 |
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382 |
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383 class partiterator(object): |
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384 def __init__(self, repo, op, unbundler): |
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385 self.repo = repo |
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386 self.op = op |
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387 self.unbundler = unbundler |
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388 self.iterator = None |
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389 self.count = 0 |
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390 self.current = None |
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391 |
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392 def __enter__(self): |
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393 def func(): |
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394 itr = enumerate(self.unbundler.iterparts(), 1) |
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395 for count, p in itr: |
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396 self.count = count |
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397 self.current = p |
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398 yield p |
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399 p.consume() |
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400 self.current = None |
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401 |
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402 self.iterator = func() |
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403 return self.iterator |
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404 |
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405 def __exit__(self, type, exc, tb): |
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406 if not self.iterator: |
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407 return |
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408 |
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409 # Only gracefully abort in a normal exception situation. User aborts |
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410 # like Ctrl+C throw a KeyboardInterrupt which is not a base Exception, |
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411 # and should not gracefully cleanup. |
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412 if isinstance(exc, Exception): |
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413 # Any exceptions seeking to the end of the bundle at this point are |
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414 # almost certainly related to the underlying stream being bad. |
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415 # And, chances are that the exception we're handling is related to |
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416 # getting in that bad state. So, we swallow the seeking error and |
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417 # re-raise the original error. |
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418 seekerror = False |
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419 try: |
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420 if self.current: |
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421 # consume the part content to not corrupt the stream. |
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422 self.current.consume() |
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423 |
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424 for part in self.iterator: |
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425 # consume the bundle content |
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426 part.consume() |
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427 except Exception: |
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428 seekerror = True |
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429 |
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430 # Small hack to let caller code distinguish exceptions from bundle2 |
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431 # processing from processing the old format. This is mostly needed |
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432 # to handle different return codes to unbundle according to the type |
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433 # of bundle. We should probably clean up or drop this return code |
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434 # craziness in a future version. |
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435 exc.duringunbundle2 = True |
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436 salvaged = [] |
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437 replycaps = None |
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438 if self.op.reply is not None: |
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439 salvaged = self.op.reply.salvageoutput() |
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440 replycaps = self.op.reply.capabilities |
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441 exc._replycaps = replycaps |
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442 exc._bundle2salvagedoutput = salvaged |
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443 |
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444 # Re-raising from a variable loses the original stack. So only use |
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445 # that form if we need to. |
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446 if seekerror: |
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447 raise exc |
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448 |
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449 self.repo.ui.debug( |
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450 b'bundle2-input-bundle: %i parts total\n' % self.count |
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451 ) |
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452 |
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453 |
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454 def processbundle(repo, unbundler, transactiongetter=None, op=None, source=b''): |
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455 """This function process a bundle, apply effect to/from a repo |
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456 |
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457 It iterates over each part then searches for and uses the proper handling |
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458 code to process the part. Parts are processed in order. |
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459 |
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460 Unknown Mandatory part will abort the process. |
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461 |
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462 It is temporarily possible to provide a prebuilt bundleoperation to the |
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463 function. This is used to ensure output is properly propagated in case of |
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464 an error during the unbundling. This output capturing part will likely be |
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465 reworked and this ability will probably go away in the process. |
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466 """ |
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467 if op is None: |
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468 if transactiongetter is None: |
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469 transactiongetter = _notransaction |
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470 op = bundleoperation(repo, transactiongetter, source=source) |
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471 # todo: |
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472 # - replace this is a init function soon. |
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473 # - exception catching |
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474 unbundler.params |
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475 if repo.ui.debugflag: |
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476 msg = [b'bundle2-input-bundle:'] |
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477 if unbundler.params: |
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478 msg.append(b' %i params' % len(unbundler.params)) |
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479 if op._gettransaction is None or op._gettransaction is _notransaction: |
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480 msg.append(b' no-transaction') |
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481 else: |
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482 msg.append(b' with-transaction') |
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483 msg.append(b'\n') |
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484 repo.ui.debug(b''.join(msg)) |
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485 |
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486 processparts(repo, op, unbundler) |
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487 |
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488 return op |
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489 |
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490 |
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491 def processparts(repo, op, unbundler): |
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492 with partiterator(repo, op, unbundler) as parts: |
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493 for part in parts: |
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494 _processpart(op, part) |
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495 |
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496 |
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497 def _processchangegroup(op, cg, tr, source, url, **kwargs): |
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498 ret = cg.apply(op.repo, tr, source, url, **kwargs) |
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499 op.records.add( |
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500 b'changegroup', |
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501 { |
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502 b'return': ret, |
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503 }, |
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504 ) |
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505 return ret |
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506 |
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507 |
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508 def _gethandler(op, part): |
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509 status = b'unknown' # used by debug output |
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510 try: |
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511 handler = parthandlermapping.get(part.type) |
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512 if handler is None: |
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513 status = b'unsupported-type' |
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514 raise error.BundleUnknownFeatureError(parttype=part.type) |
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515 indebug(op.ui, b'found a handler for part %s' % part.type) |
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516 unknownparams = part.mandatorykeys - handler.params |
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517 if unknownparams: |
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518 unknownparams = list(unknownparams) |
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519 unknownparams.sort() |
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520 status = b'unsupported-params (%s)' % b', '.join(unknownparams) |
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521 raise error.BundleUnknownFeatureError( |
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522 parttype=part.type, params=unknownparams |
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523 ) |
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524 status = b'supported' |
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525 except error.BundleUnknownFeatureError as exc: |
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526 if part.mandatory: # mandatory parts |
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527 raise |
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528 indebug(op.ui, b'ignoring unsupported advisory part %s' % exc) |
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529 return # skip to part processing |
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530 finally: |
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531 if op.ui.debugflag: |
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532 msg = [b'bundle2-input-part: "%s"' % part.type] |
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533 if not part.mandatory: |
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534 msg.append(b' (advisory)') |
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535 nbmp = len(part.mandatorykeys) |
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536 nbap = len(part.params) - nbmp |
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537 if nbmp or nbap: |
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538 msg.append(b' (params:') |
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539 if nbmp: |
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540 msg.append(b' %i mandatory' % nbmp) |
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541 if nbap: |
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542 msg.append(b' %i advisory' % nbmp) |
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543 msg.append(b')') |
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544 msg.append(b' %s\n' % status) |
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545 op.ui.debug(b''.join(msg)) |
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546 |
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547 return handler |
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548 |
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549 |
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550 def _processpart(op, part): |
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551 """process a single part from a bundle |
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552 |
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553 The part is guaranteed to have been fully consumed when the function exits |
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554 (even if an exception is raised).""" |
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555 handler = _gethandler(op, part) |
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556 if handler is None: |
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557 return |
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558 |
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559 # handler is called outside the above try block so that we don't |
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560 # risk catching KeyErrors from anything other than the |
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561 # parthandlermapping lookup (any KeyError raised by handler() |
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562 # itself represents a defect of a different variety). |
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563 output = None |
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564 if op.captureoutput and op.reply is not None: |
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565 op.ui.pushbuffer(error=True, subproc=True) |
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566 output = b'' |
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567 try: |
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568 handler(op, part) |
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569 finally: |
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570 if output is not None: |
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571 output = op.ui.popbuffer() |
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572 if output: |
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573 outpart = op.reply.newpart(b'output', data=output, mandatory=False) |
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574 outpart.addparam( |
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575 b'in-reply-to', pycompat.bytestr(part.id), mandatory=False |
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576 ) |
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577 |
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578 |
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579 def decodecaps(blob): |
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580 """decode a bundle2 caps bytes blob into a dictionary |
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581 |
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582 The blob is a list of capabilities (one per line) |
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583 Capabilities may have values using a line of the form:: |
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584 |
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585 capability=value1,value2,value3 |
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586 |
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587 The values are always a list.""" |
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588 caps = {} |
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589 for line in blob.splitlines(): |
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590 if not line: |
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591 continue |
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592 if b'=' not in line: |
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593 key, vals = line, () |
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594 else: |
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595 key, vals = line.split(b'=', 1) |
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596 vals = vals.split(b',') |
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597 key = urlreq.unquote(key) |
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598 vals = [urlreq.unquote(v) for v in vals] |
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599 caps[key] = vals |
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600 return caps |
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601 |
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602 |
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603 def encodecaps(caps): |
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604 """encode a bundle2 caps dictionary into a bytes blob""" |
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605 chunks = [] |
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606 for ca in sorted(caps): |
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607 vals = caps[ca] |
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608 ca = urlreq.quote(ca) |
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609 vals = [urlreq.quote(v) for v in vals] |
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610 if vals: |
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611 ca = b"%s=%s" % (ca, b','.join(vals)) |
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612 chunks.append(ca) |
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613 return b'\n'.join(chunks) |
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614 |
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615 |
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616 bundletypes = { |
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617 b"": (b"", b'UN'), # only when using unbundle on ssh and old http servers |
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618 # since the unification ssh accepts a header but there |
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619 # is no capability signaling it. |
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620 b"HG20": (), # special-cased below |
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621 b"HG10UN": (b"HG10UN", b'UN'), |
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622 b"HG10BZ": (b"HG10", b'BZ'), |
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623 b"HG10GZ": (b"HG10GZ", b'GZ'), |
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624 } |
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625 |
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626 # hgweb uses this list to communicate its preferred type |
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627 bundlepriority = [b'HG10GZ', b'HG10BZ', b'HG10UN'] |
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628 |
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629 |
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630 class bundle20(object): |
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631 """represent an outgoing bundle2 container |
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632 |
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633 Use the `addparam` method to add stream level parameter. and `newpart` to |
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634 populate it. Then call `getchunks` to retrieve all the binary chunks of |
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635 data that compose the bundle2 container.""" |
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636 |
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637 _magicstring = b'HG20' |
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|
638 |
21134
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639 def __init__(self, ui, capabilities=()): |
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640 self.ui = ui |
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641 self._params = [] |
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642 self._parts = [] |
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643 self.capabilities = dict(capabilities) |
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644 self._compengine = util.compengines.forbundletype(b'UN') |
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645 self._compopts = None |
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646 # If compression is being handled by a consumer of the raw |
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647 # data (e.g. the wire protocol), unsetting this flag tells |
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648 # consumers that the bundle is best left uncompressed. |
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649 self.prefercompressed = True |
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650 |
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651 def setcompression(self, alg, compopts=None): |
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652 """setup core part compression to <alg>""" |
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653 if alg in (None, b'UN'): |
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654 return |
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655 assert not any(n.lower() == b'compression' for n, v in self._params) |
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656 self.addparam(b'Compression', alg) |
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657 self._compengine = util.compengines.forbundletype(alg) |
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658 self._compopts = compopts |
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659 |
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660 @property |
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661 def nbparts(self): |
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662 """total number of parts added to the bundler""" |
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663 return len(self._parts) |
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664 |
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665 # methods used to defines the bundle2 content |
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666 def addparam(self, name, value=None): |
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667 """add a stream level parameter""" |
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668 if not name: |
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669 raise error.ProgrammingError(b'empty parameter name') |
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670 if name[0:1] not in pycompat.bytestr( |
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671 string.ascii_letters # pytype: disable=wrong-arg-types |
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672 ): |
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673 raise error.ProgrammingError( |
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674 b'non letter first character: %s' % name |
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675 ) |
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676 self._params.append((name, value)) |
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677 |
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|
678 def addpart(self, part): |
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679 """add a new part to the bundle2 container |
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680 |
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681 Parts contains the actual applicative payload.""" |
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682 assert part.id is None |
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683 part.id = len(self._parts) # very cheap counter |
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684 self._parts.append(part) |
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685 |
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686 def newpart(self, typeid, *args, **kwargs): |
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687 """create a new part and add it to the containers |
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688 |
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689 As the part is directly added to the containers. For now, this means |
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690 that any failure to properly initialize the part after calling |
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691 ``newpart`` should result in a failure of the whole bundling process. |
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692 |
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693 You can still fall back to manually create and add if you need better |
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694 control.""" |
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695 part = bundlepart(typeid, *args, **kwargs) |
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696 self.addpart(part) |
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697 return part |
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698 |
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699 # methods used to generate the bundle2 stream |
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700 def getchunks(self): |
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701 if self.ui.debugflag: |
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702 msg = [b'bundle2-output-bundle: "%s",' % self._magicstring] |
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703 if self._params: |
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704 msg.append(b' (%i params)' % len(self._params)) |
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705 msg.append(b' %i parts total\n' % len(self._parts)) |
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706 self.ui.debug(b''.join(msg)) |
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707 outdebug(self.ui, b'start emission of %s stream' % self._magicstring) |
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708 yield self._magicstring |
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709 param = self._paramchunk() |
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710 outdebug(self.ui, b'bundle parameter: %s' % param) |
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711 yield _pack(_fstreamparamsize, len(param)) |
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712 if param: |
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713 yield param |
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714 for chunk in self._compengine.compressstream( |
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715 self._getcorechunk(), self._compopts |
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716 ): |
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717 yield chunk |
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718 |
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719 def _paramchunk(self): |
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720 """return a encoded version of all stream parameters""" |
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721 blocks = [] |
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722 for par, value in self._params: |
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723 par = urlreq.quote(par) |
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724 if value is not None: |
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|
725 value = urlreq.quote(value) |
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726 par = b'%s=%s' % (par, value) |
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727 blocks.append(par) |
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728 return b' '.join(blocks) |
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|
729 |
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730 def _getcorechunk(self): |
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731 """yield chunk for the core part of the bundle |
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732 |
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733 (all but headers and parameters)""" |
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734 outdebug(self.ui, b'start of parts') |
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735 for part in self._parts: |
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736 outdebug(self.ui, b'bundle part: "%s"' % part.type) |
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737 for chunk in part.getchunks(ui=self.ui): |
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738 yield chunk |
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739 outdebug(self.ui, b'end of bundle') |
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740 yield _pack(_fpartheadersize, 0) |
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|
741 |
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|
742 def salvageoutput(self): |
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743 """return a list with a copy of all output parts in the bundle |
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|
744 |
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|
745 This is meant to be used during error handling to make sure we preserve |
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|
746 server output""" |
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|
747 salvaged = [] |
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|
748 for part in self._parts: |
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749 if part.type.startswith(b'output'): |
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|
750 salvaged.append(part.copy()) |
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|
751 return salvaged |
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|
752 |
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|
753 |
21013
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diff
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|
754 class unpackermixin(object): |
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755 """A mixin to extract bytes and struct data from a stream""" |
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756 |
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757 def __init__(self, fp): |
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758 self._fp = fp |
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759 |
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|
760 def _unpack(self, format): |
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|
761 """unpack this struct format from the stream |
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|
762 |
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|
763 This method is meant for internal usage by the bundle2 protocol only. |
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|
764 They directly manipulate the low level stream including bundle2 level |
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|
765 instruction. |
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|
766 |
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|
767 Do not use it to implement higher-level logic or methods.""" |
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768 data = self._readexact(struct.calcsize(format)) |
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769 return _unpack(format, data) |
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770 |
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771 def _readexact(self, size): |
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772 """read exactly <size> bytes from the stream |
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|
773 |
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|
774 This method is meant for internal usage by the bundle2 protocol only. |
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|
775 They directly manipulate the low level stream including bundle2 level |
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|
776 instruction. |
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|
777 |
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|
778 Do not use it to implement higher-level logic or methods.""" |
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779 return changegroup.readexactly(self._fp, size) |
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|
780 |
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|
781 |
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|
782 def getunbundler(ui, fp, magicstring=None): |
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|
783 """return a valid unbundler object for a given magicstring""" |
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784 if magicstring is None: |
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785 magicstring = changegroup.readexactly(fp, 4) |
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786 magic, version = magicstring[0:2], magicstring[2:4] |
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|
787 if magic != b'HG': |
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parents:
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|
788 ui.debug( |
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789 b"error: invalid magic: %r (version %r), should be 'HG'\n" |
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790 % (magic, version) |
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791 ) |
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|
792 raise error.Abort(_(b'not a Mercurial bundle')) |
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diff
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793 unbundlerclass = formatmap.get(version) |
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794 if unbundlerclass is None: |
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|
795 raise error.Abort(_(b'unknown bundle version %s') % version) |
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796 unbundler = unbundlerclass(ui, fp) |
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797 indebug(ui, b'start processing of %s stream' % magicstring) |
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|
798 return unbundler |
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|
799 |
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800 |
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diff
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801 class unbundle20(unpackermixin): |
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802 """interpret a bundle2 stream |
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|
803 |
21129
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diff
changeset
|
804 This class is fed with a binary stream and yields parts through its |
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805 `iterparts` methods.""" |
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|
806 |
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807 _magicstring = b'HG20' |
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808 |
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809 def __init__(self, ui, fp): |
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parents:
21062
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810 """If header is specified, we do not read it out of the stream.""" |
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811 self.ui = ui |
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812 self._compengine = util.compengines.forbundletype(b'UN') |
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813 self._compressed = None |
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814 super(unbundle20, self).__init__(fp) |
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815 |
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816 @util.propertycache |
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817 def params(self): |
21024
7731a2281cf0
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diff
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|
818 """dictionary of stream level parameters""" |
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819 indebug(self.ui, b'reading bundle2 stream parameters') |
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820 params = {} |
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diff
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|
821 paramssize = self._unpack(_fstreamparamsize)[0] |
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diff
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822 if paramssize < 0: |
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823 raise error.BundleValueError( |
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824 b'negative bundle param size: %i' % paramssize |
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|
825 ) |
20805
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|
826 if paramssize: |
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827 params = self._readexact(paramssize) |
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diff
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|
828 params = self._processallparams(params) |
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829 return params |
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830 |
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|
831 def _processallparams(self, paramsblock): |
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Kyle Lippincott <spectral@google.com>
parents:
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diff
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832 """ """ |
29591
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
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|
833 params = util.sortdict() |
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834 for p in paramsblock.split(b' '): |
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|
835 p = p.split(b'=', 1) |
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pycompat: switch to util.urlreq/util.urlerr for py3 compat
timeless <timeless@mozdev.org>
parents:
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|
836 p = [urlreq.unquote(i) for i in p] |
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837 if len(p) < 2: |
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|
838 p.append(None) |
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|
839 self._processparam(*p) |
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|
840 params[p[0]] = p[1] |
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|
841 return params |
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diff
changeset
|
842 |
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|
843 def _processparam(self, name, value): |
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parents:
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|
844 """process a parameter, applying its effect if needed |
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|
845 |
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diff
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|
846 Parameter starting with a lower case letter are advisory and will be |
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diff
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|
847 ignored when unknown. Those starting with an upper case letter are |
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diff
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|
848 mandatory and will this function will raise a KeyError when unknown. |
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|
849 |
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diff
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|
850 Note: no option are currently supported. Any input will be either |
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851 ignored or failing. |
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852 """ |
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diff
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|
853 if not name: |
43506
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Augie Fackler <augie@google.com>
parents:
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diff
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|
854 raise ValueError('empty parameter name') |
43488
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Augie Fackler <augie@google.com>
parents:
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diff
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|
855 if name[0:1] not in pycompat.bytestr( |
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parents:
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|
856 string.ascii_letters # pytype: disable=wrong-arg-types |
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diff
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|
857 ): |
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diff
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|
858 raise ValueError('non letter first character: %s' % name) |
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diff
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|
859 try: |
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diff
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|
860 handler = b2streamparamsmap[name.lower()] |
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|
861 except KeyError: |
34277
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|
862 if name[0:1].islower(): |
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|
863 indebug(self.ui, b"ignoring unknown parameter %s" % name) |
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864 else: |
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|
865 raise error.BundleUnknownFeatureError(params=(name,)) |
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|
866 else: |
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|
867 handler(self, name, value) |
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|
868 |
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|
869 def _forwardchunks(self): |
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|
870 """utility to transfer a bundle2 as binary |
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871 |
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872 This is made necessary by the fact the 'getbundle' command over 'ssh' |
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|
873 have no way to know then the reply end, relying on the bundle to be |
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|
874 interpreted to know its end. This is terrible and we are sorry, but we |
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|
875 needed to move forward to get general delta enabled. |
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|
876 """ |
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|
877 yield self._magicstring |
43421
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diff
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|
878 assert 'params' not in vars(self) |
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879 paramssize = self._unpack(_fstreamparamsize)[0] |
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|
880 if paramssize < 0: |
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881 raise error.BundleValueError( |
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882 b'negative bundle param size: %i' % paramssize |
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|
883 ) |
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|
884 if paramssize: |
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|
885 params = self._readexact(paramssize) |
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|
886 self._processallparams(params) |
42143
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parents:
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diff
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|
887 # The payload itself is decompressed below, so drop |
29569f2db929
bundle2: handle compression in _forwardchunks
Joerg Sonnenberger <joerg@bec.de>
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diff
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|
888 # the compression parameter passed down to compensate. |
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|
889 outparams = [] |
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Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
890 for p in params.split(b' '): |
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
891 k, v = p.split(b'=', 1) |
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
892 if k.lower() != b'compression': |
42143
29569f2db929
bundle2: handle compression in _forwardchunks
Joerg Sonnenberger <joerg@bec.de>
parents:
42057
diff
changeset
|
893 outparams.append(p) |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
894 outparams = b' '.join(outparams) |
42143
29569f2db929
bundle2: handle compression in _forwardchunks
Joerg Sonnenberger <joerg@bec.de>
parents:
42057
diff
changeset
|
895 yield _pack(_fstreamparamsize, len(outparams)) |
29569f2db929
bundle2: handle compression in _forwardchunks
Joerg Sonnenberger <joerg@bec.de>
parents:
42057
diff
changeset
|
896 yield outparams |
29569f2db929
bundle2: handle compression in _forwardchunks
Joerg Sonnenberger <joerg@bec.de>
parents:
42057
diff
changeset
|
897 else: |
29569f2db929
bundle2: handle compression in _forwardchunks
Joerg Sonnenberger <joerg@bec.de>
parents:
42057
diff
changeset
|
898 yield _pack(_fstreamparamsize, paramssize) |
26542
b87e4638dabf
bundle2: add a way to just forward the bundle2 stream to another user
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
26541
diff
changeset
|
899 # From there, payload might need to be decompressed |
30353
d045b4091197
bundle2: use compression engines API to obtain decompressor
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30351
diff
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|
900 self._fp = self._compengine.decompressorreader(self._fp) |
26542
b87e4638dabf
bundle2: add a way to just forward the bundle2 stream to another user
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
26541
diff
changeset
|
901 emptycount = 0 |
b87e4638dabf
bundle2: add a way to just forward the bundle2 stream to another user
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
26541
diff
changeset
|
902 while emptycount < 2: |
b87e4638dabf
bundle2: add a way to just forward the bundle2 stream to another user
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
26541
diff
changeset
|
903 # so we can brainlessly loop |
b87e4638dabf
bundle2: add a way to just forward the bundle2 stream to another user
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
26541
diff
changeset
|
904 assert _fpartheadersize == _fpayloadsize |
b87e4638dabf
bundle2: add a way to just forward the bundle2 stream to another user
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
26541
diff
changeset
|
905 size = self._unpack(_fpartheadersize)[0] |
b87e4638dabf
bundle2: add a way to just forward the bundle2 stream to another user
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
26541
diff
changeset
|
906 yield _pack(_fpartheadersize, size) |
b87e4638dabf
bundle2: add a way to just forward the bundle2 stream to another user
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
26541
diff
changeset
|
907 if size: |
b87e4638dabf
bundle2: add a way to just forward the bundle2 stream to another user
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
26541
diff
changeset
|
908 emptycount = 0 |
b87e4638dabf
bundle2: add a way to just forward the bundle2 stream to another user
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
26541
diff
changeset
|
909 else: |
b87e4638dabf
bundle2: add a way to just forward the bundle2 stream to another user
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
26541
diff
changeset
|
910 emptycount += 1 |
b87e4638dabf
bundle2: add a way to just forward the bundle2 stream to another user
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
26541
diff
changeset
|
911 continue |
b87e4638dabf
bundle2: add a way to just forward the bundle2 stream to another user
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
26541
diff
changeset
|
912 if size == flaginterrupt: |
b87e4638dabf
bundle2: add a way to just forward the bundle2 stream to another user
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
26541
diff
changeset
|
913 continue |
b87e4638dabf
bundle2: add a way to just forward the bundle2 stream to another user
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
26541
diff
changeset
|
914 elif size < 0: |
43077
687b865b95ad
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Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
915 raise error.BundleValueError(b'negative chunk size: %i') |
26542
b87e4638dabf
bundle2: add a way to just forward the bundle2 stream to another user
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
26541
diff
changeset
|
916 yield self._readexact(size) |
b87e4638dabf
bundle2: add a way to just forward the bundle2 stream to another user
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
26541
diff
changeset
|
917 |
35116
da91e7309daf
bundle2: don't use seekable bundle2 parts by default (issue5691)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35115
diff
changeset
|
918 def iterparts(self, seekable=False): |
20802
520df53ad26a
bundle2: a very first version of bundle2 unbundler
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20801
diff
changeset
|
919 """yield all parts contained in the stream""" |
35116
da91e7309daf
bundle2: don't use seekable bundle2 parts by default (issue5691)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35115
diff
changeset
|
920 cls = seekableunbundlepart if seekable else unbundlepart |
20802
520df53ad26a
bundle2: a very first version of bundle2 unbundler
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20801
diff
changeset
|
921 # make sure param have been loaded |
520df53ad26a
bundle2: a very first version of bundle2 unbundler
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20801
diff
changeset
|
922 self.params |
26404
795f02a24b87
bundle2: allow compressed bundle
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
26396
diff
changeset
|
923 # From there, payload need to be decompressed |
30353
d045b4091197
bundle2: use compression engines API to obtain decompressor
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30351
diff
changeset
|
924 self._fp = self._compengine.decompressorreader(self._fp) |
43077
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Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
925 indebug(self.ui, b'start extraction of bundle2 parts') |
21014
a6246bba7b9e
bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21013
diff
changeset
|
926 headerblock = self._readpartheader() |
a6246bba7b9e
bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21013
diff
changeset
|
927 while headerblock is not None: |
35116
da91e7309daf
bundle2: don't use seekable bundle2 parts by default (issue5691)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35115
diff
changeset
|
928 part = cls(self.ui, headerblock, self._fp) |
20802
520df53ad26a
bundle2: a very first version of bundle2 unbundler
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20801
diff
changeset
|
929 yield part |
35114
db5038525718
bundle2: implement consume() API on unbundlepart
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35113
diff
changeset
|
930 # Ensure part is fully consumed so we can start reading the next |
db5038525718
bundle2: implement consume() API on unbundlepart
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35113
diff
changeset
|
931 # part. |
db5038525718
bundle2: implement consume() API on unbundlepart
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35113
diff
changeset
|
932 part.consume() |
35115
2b72bc88043f
bundle2: only seek to beginning of part in bundlerepo
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35114
diff
changeset
|
933 |
21014
a6246bba7b9e
bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21013
diff
changeset
|
934 headerblock = self._readpartheader() |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
935 indebug(self.ui, b'end of bundle2 stream') |
20802
520df53ad26a
bundle2: a very first version of bundle2 unbundler
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20801
diff
changeset
|
936 |
21014
a6246bba7b9e
bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21013
diff
changeset
|
937 def _readpartheader(self): |
a6246bba7b9e
bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21013
diff
changeset
|
938 """reads a part header size and return the bytes blob |
20864
9a75d2559cff
bundle2: support unbundling empty part
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20856
diff
changeset
|
939 |
21014
a6246bba7b9e
bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21013
diff
changeset
|
940 returns None if empty""" |
20864
9a75d2559cff
bundle2: support unbundling empty part
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20856
diff
changeset
|
941 headersize = self._unpack(_fpartheadersize)[0] |
23011
006a81d07e57
bundle2: detect and disallow a negative chunk size
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
23010
diff
changeset
|
942 if headersize < 0: |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42931
diff
changeset
|
943 raise error.BundleValueError( |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
944 b'negative part header size: %i' % headersize |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42931
diff
changeset
|
945 ) |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
946 indebug(self.ui, b'part header size: %i' % headersize) |
21014
a6246bba7b9e
bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21013
diff
changeset
|
947 if headersize: |
a6246bba7b9e
bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21013
diff
changeset
|
948 return self._readexact(headersize) |
a6246bba7b9e
bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21013
diff
changeset
|
949 return None |
20864
9a75d2559cff
bundle2: support unbundling empty part
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20856
diff
changeset
|
950 |
24071
184a2f6f40da
bundle2.unbundle20: add compressed() method
Eric Sumner <ericsumner@fb.com>
parents:
24070
diff
changeset
|
951 def compressed(self): |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42931
diff
changeset
|
952 self.params # load params |
26802
42f705f2c02d
bundle2: make unbundle.compressed return True when compressed
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
26795
diff
changeset
|
953 return self._compressed |
20802
520df53ad26a
bundle2: a very first version of bundle2 unbundler
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20801
diff
changeset
|
954 |
31863
cd7aaf344d83
bundle2: move the 'close' method off the unpackermixin
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
31862
diff
changeset
|
955 def close(self): |
cd7aaf344d83
bundle2: move the 'close' method off the unpackermixin
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
31862
diff
changeset
|
956 """close underlying file""" |
43115
4aa72cdf616f
py3: delete b'' prefix from safehasattr arguments
Martin von Zweigbergk <martinvonz@google.com>
parents:
43080
diff
changeset
|
957 if util.safehasattr(self._fp, 'close'): |
31863
cd7aaf344d83
bundle2: move the 'close' method off the unpackermixin
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
31862
diff
changeset
|
958 return self._fp.close() |
cd7aaf344d83
bundle2: move the 'close' method off the unpackermixin
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
31862
diff
changeset
|
959 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42931
diff
changeset
|
960 |
43077
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Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
961 formatmap = {b'20': unbundle20} |
24648
5cac3accdaa1
unbundle20: allow generic dispatch between unbundlers
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24642
diff
changeset
|
962 |
26395
4e7b0bf9f0b1
unbundle20: allow registering handlers for stream level parameters
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
26393
diff
changeset
|
963 b2streamparamsmap = {} |
4e7b0bf9f0b1
unbundle20: allow registering handlers for stream level parameters
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
26393
diff
changeset
|
964 |
43076
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Augie Fackler <augie@google.com>
parents:
42931
diff
changeset
|
965 |
26395
4e7b0bf9f0b1
unbundle20: allow registering handlers for stream level parameters
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
26393
diff
changeset
|
966 def b2streamparamhandler(name): |
4e7b0bf9f0b1
unbundle20: allow registering handlers for stream level parameters
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
26393
diff
changeset
|
967 """register a handler for a stream level parameter""" |
43076
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formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42931
diff
changeset
|
968 |
26395
4e7b0bf9f0b1
unbundle20: allow registering handlers for stream level parameters
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
26393
diff
changeset
|
969 def decorator(func): |
4e7b0bf9f0b1
unbundle20: allow registering handlers for stream level parameters
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
26393
diff
changeset
|
970 assert name not in formatmap |
4e7b0bf9f0b1
unbundle20: allow registering handlers for stream level parameters
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
26393
diff
changeset
|
971 b2streamparamsmap[name] = func |
4e7b0bf9f0b1
unbundle20: allow registering handlers for stream level parameters
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
26393
diff
changeset
|
972 return func |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42931
diff
changeset
|
973 |
26395
4e7b0bf9f0b1
unbundle20: allow registering handlers for stream level parameters
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
26393
diff
changeset
|
974 return decorator |
4e7b0bf9f0b1
unbundle20: allow registering handlers for stream level parameters
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
26393
diff
changeset
|
975 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42931
diff
changeset
|
976 |
43077
687b865b95ad
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Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
977 @b2streamparamhandler(b'compression') |
26404
795f02a24b87
bundle2: allow compressed bundle
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
26396
diff
changeset
|
978 def processcompression(unbundler, param, value): |
795f02a24b87
bundle2: allow compressed bundle
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
26396
diff
changeset
|
979 """read compression parameter and install payload decompression""" |
30353
d045b4091197
bundle2: use compression engines API to obtain decompressor
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30351
diff
changeset
|
980 if value not in util.compengines.supportedbundletypes: |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42931
diff
changeset
|
981 raise error.BundleUnknownFeatureError(params=(param,), values=(value,)) |
30353
d045b4091197
bundle2: use compression engines API to obtain decompressor
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30351
diff
changeset
|
982 unbundler._compengine = util.compengines.forbundletype(value) |
26802
42f705f2c02d
bundle2: make unbundle.compressed return True when compressed
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
26795
diff
changeset
|
983 if value is not None: |
42f705f2c02d
bundle2: make unbundle.compressed return True when compressed
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
26795
diff
changeset
|
984 unbundler._compressed = True |
26404
795f02a24b87
bundle2: allow compressed bundle
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
26396
diff
changeset
|
985 |
43076
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Augie Fackler <augie@google.com>
parents:
42931
diff
changeset
|
986 |
21005
3d38ebb586fe
bundle2: rename part to bundlepart
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21004
diff
changeset
|
987 class bundlepart(object): |
20856
8a6a86c9a5b5
bundle2: support bundling of empty part (with a type)
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20844
diff
changeset
|
988 """A bundle2 part contains application level payload |
8a6a86c9a5b5
bundle2: support bundling of empty part (with a type)
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20844
diff
changeset
|
989 |
8a6a86c9a5b5
bundle2: support bundling of empty part (with a type)
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20844
diff
changeset
|
990 The part `type` is used to route the part to the application level |
8a6a86c9a5b5
bundle2: support bundling of empty part (with a type)
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20844
diff
changeset
|
991 handler. |
21604
c399bf961cb9
bundle2: the ability to set ``data`` attribute of the part is now official
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21603
diff
changeset
|
992 |
c399bf961cb9
bundle2: the ability to set ``data`` attribute of the part is now official
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21603
diff
changeset
|
993 The part payload is contained in ``part.data``. It could be raw bytes or a |
21605
f9dabfceb259
bundle2: introduce a ``addparam`` method on part
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21604
diff
changeset
|
994 generator of byte chunks. |
f9dabfceb259
bundle2: introduce a ``addparam`` method on part
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21604
diff
changeset
|
995 |
f9dabfceb259
bundle2: introduce a ``addparam`` method on part
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21604
diff
changeset
|
996 You can add parameters to the part using the ``addparam`` method. |
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997 Parameters can be either mandatory (default) or advisory. Remote side |
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998 should be able to safely ignore the advisory ones. |
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999 |
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1000 Both data and parameters cannot be modified after the generation has begun. |
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1001 """ |
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1002 |
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1003 def __init__( |
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1004 self, |
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1005 parttype, |
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1006 mandatoryparams=(), |
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1007 advisoryparams=(), |
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1008 data=b'', |
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1009 mandatory=True, |
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1010 ): |
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1011 validateparttype(parttype) |
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1012 self.id = None |
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1013 self.type = parttype |
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1014 self._data = data |
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1015 self._mandatoryparams = list(mandatoryparams) |
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1016 self._advisoryparams = list(advisoryparams) |
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1017 # checking for duplicated entries |
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1018 self._seenparams = set() |
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1019 for pname, __ in self._mandatoryparams + self._advisoryparams: |
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1020 if pname in self._seenparams: |
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1021 raise error.ProgrammingError(b'duplicated params: %s' % pname) |
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1022 self._seenparams.add(pname) |
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1023 # status of the part's generation: |
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1024 # - None: not started, |
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1025 # - False: currently generated, |
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1026 # - True: generation done. |
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1027 self._generated = None |
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1028 self.mandatory = mandatory |
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1029 |
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1030 def __repr__(self): |
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1031 cls = "%s.%s" % (self.__class__.__module__, self.__class__.__name__) |
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1032 return '<%s object at %x; id: %s; type: %s; mandatory: %s>' % ( |
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1033 cls, |
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1034 id(self), |
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1035 self.id, |
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1036 self.type, |
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1037 self.mandatory, |
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1038 ) |
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1039 |
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1040 def copy(self): |
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1041 """return a copy of the part |
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1042 |
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1043 The new part have the very same content but no partid assigned yet. |
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1044 Parts with generated data cannot be copied.""" |
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1045 assert not util.safehasattr(self.data, 'next') |
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1046 return self.__class__( |
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1047 self.type, |
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1048 self._mandatoryparams, |
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1049 self._advisoryparams, |
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1050 self._data, |
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1051 self.mandatory, |
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1052 ) |
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1053 |
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1054 # methods used to defines the part content |
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1055 @property |
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1056 def data(self): |
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1057 return self._data |
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1058 |
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1059 @data.setter |
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1060 def data(self, data): |
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1061 if self._generated is not None: |
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1062 raise error.ReadOnlyPartError(b'part is being generated') |
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1063 self._data = data |
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1064 |
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1065 @property |
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1066 def mandatoryparams(self): |
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1067 # make it an immutable tuple to force people through ``addparam`` |
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1068 return tuple(self._mandatoryparams) |
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1069 |
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1070 @property |
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1071 def advisoryparams(self): |
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1072 # make it an immutable tuple to force people through ``addparam`` |
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1073 return tuple(self._advisoryparams) |
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1074 |
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1075 def addparam(self, name, value=b'', mandatory=True): |
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1076 """add a parameter to the part |
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1077 |
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1078 If 'mandatory' is set to True, the remote handler must claim support |
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1079 for this parameter or the unbundling will be aborted. |
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1080 |
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1081 The 'name' and 'value' cannot exceed 255 bytes each. |
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1082 """ |
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1083 if self._generated is not None: |
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1084 raise error.ReadOnlyPartError(b'part is being generated') |
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1085 if name in self._seenparams: |
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1086 raise ValueError(b'duplicated params: %s' % name) |
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1087 self._seenparams.add(name) |
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1088 params = self._advisoryparams |
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1089 if mandatory: |
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1090 params = self._mandatoryparams |
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1091 params.append((name, value)) |
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1092 |
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1093 # methods used to generates the bundle2 stream |
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1094 def getchunks(self, ui): |
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1095 if self._generated is not None: |
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1096 raise error.ProgrammingError(b'part can only be consumed once') |
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1097 self._generated = False |
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1098 |
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1099 if ui.debugflag: |
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1100 msg = [b'bundle2-output-part: "%s"' % self.type] |
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1101 if not self.mandatory: |
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1102 msg.append(b' (advisory)') |
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1103 nbmp = len(self.mandatoryparams) |
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1104 nbap = len(self.advisoryparams) |
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1105 if nbmp or nbap: |
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1106 msg.append(b' (params:') |
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1107 if nbmp: |
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1108 msg.append(b' %i mandatory' % nbmp) |
25323
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Pierre-Yves David <pierre-yves.david@fb.com>
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|
1109 if nbap: |
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1110 msg.append(b' %i advisory' % nbmp) |
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1111 msg.append(b')') |
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|
1112 if not self.data: |
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|
1113 msg.append(b' empty payload') |
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Martin von Zweigbergk <martinvonz@google.com>
parents:
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diff
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|
1114 elif util.safehasattr(self.data, 'next') or util.safehasattr( |
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1115 self.data, b'__next__' |
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1116 ): |
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1117 msg.append(b' streamed payload') |
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1118 else: |
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1119 msg.append(b' %i bytes payload' % len(self.data)) |
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1120 msg.append(b'\n') |
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|
1121 ui.debug(b''.join(msg)) |
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|
1122 |
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|
1123 #### header |
23590
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Eric Sumner <ericsumner@fb.com>
parents:
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diff
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|
1124 if self.mandatory: |
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Eric Sumner <ericsumner@fb.com>
parents:
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|
1125 parttype = self.type.upper() |
4440c7cc3728
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parents:
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|
1126 else: |
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|
1127 parttype = self.type.lower() |
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|
1128 outdebug(ui, b'part %s: "%s"' % (pycompat.bytestr(self.id), parttype)) |
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|
1129 ## parttype |
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1130 header = [ |
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1131 _pack(_fparttypesize, len(parttype)), |
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|
1132 parttype, |
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1133 _pack(_fpartid, self.id), |
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1134 ] |
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|
1135 ## parameters |
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1136 # count |
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1137 manpar = self.mandatoryparams |
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1138 advpar = self.advisoryparams |
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|
1139 header.append(_pack(_fpartparamcount, len(manpar), len(advpar))) |
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1140 # size |
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1141 parsizes = [] |
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|
1142 for key, value in manpar: |
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1143 parsizes.append(len(key)) |
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|
1144 parsizes.append(len(value)) |
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|
1145 for key, value in advpar: |
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|
1146 parsizes.append(len(key)) |
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|
1147 parsizes.append(len(value)) |
33672
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|
1148 paramsizes = _pack(_makefpartparamsizes(len(parsizes) // 2), *parsizes) |
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|
1149 header.append(paramsizes) |
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1150 # key, value |
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1151 for key, value in manpar: |
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1152 header.append(key) |
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|
1153 header.append(value) |
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|
1154 for key, value in advpar: |
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1155 header.append(key) |
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|
1156 header.append(value) |
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|
1157 ## finalize header |
34249
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1158 try: |
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1159 headerchunk = b''.join(header) |
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|
1160 except TypeError: |
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|
1161 raise TypeError( |
43506
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cleanup: remove pointless r-prefixes on single-quoted strings
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parents:
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diff
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|
1162 'Found a non-bytes trying to ' |
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1163 'build bundle part header: %r' % header |
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1164 ) |
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1165 outdebug(ui, b'header chunk size: %i' % len(headerchunk)) |
20856
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|
1166 yield _pack(_fpartheadersize, len(headerchunk)) |
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diff
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|
1167 yield headerchunk |
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|
1168 ## payload |
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1169 try: |
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|
1170 for chunk in self._payloadchunks(): |
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|
1171 outdebug(ui, b'payload chunk size: %i' % len(chunk)) |
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|
1172 yield _pack(_fpayloadsize, len(chunk)) |
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|
1173 yield chunk |
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|
1174 except GeneratorExit: |
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|
1175 # GeneratorExit means that nobody is listening for our |
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|
1176 # results anyway, so just bail quickly rather than trying |
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|
1177 # to produce an error part. |
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|
1178 ui.debug(b'bundle2-generatorexit\n') |
26144
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diff
changeset
|
1179 raise |
25660
328739ea70c3
global: mass rewrite to use modern exception syntax
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25641
diff
changeset
|
1180 except BaseException as exc: |
37084
f0b6fbea00cf
stringutil: bulk-replace call sites to point to new module
Yuya Nishihara <yuya@tcha.org>
parents:
37005
diff
changeset
|
1181 bexc = stringutil.forcebytestr(exc) |
23067
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|
1182 # backup exception data for later |
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|
1183 ui.debug( |
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|
1184 b'bundle2-input-stream-interrupt: encoding exception %s' % bexc |
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|
1185 ) |
32186
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|
1186 tb = sys.exc_info()[2] |
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1187 msg = b'unexpected error: %s' % bexc |
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|
1188 interpart = bundlepart( |
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|
1189 b'error:abort', [(b'message', msg)], mandatory=False |
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|
1190 ) |
23067
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|
1191 interpart.id = 0 |
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|
1192 yield _pack(_fpayloadsize, -1) |
25321
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|
1193 for chunk in interpart.getchunks(ui=ui): |
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|
1194 yield chunk |
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1195 outdebug(ui, b'closing payload chunk') |
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|
1196 # abort current part payload |
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|
1197 yield _pack(_fpayloadsize, 0) |
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|
1198 pycompat.raisewithtb(exc, tb) |
21000
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|
1199 # end of payload |
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1200 outdebug(ui, b'closing payload chunk') |
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|
1201 yield _pack(_fpayloadsize, 0) |
21601
7ff01befc7ec
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21600
diff
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|
1202 self._generated = True |
21000
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|
1203 |
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|
1204 def _payloadchunks(self): |
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|
1205 """yield chunks of a the part payload |
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|
1206 |
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|
1207 Exists to handle the different methods to provide data to a part.""" |
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|
1208 # we only support fixed size data now. |
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|
1209 # This will be improved in the future. |
43115
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Martin von Zweigbergk <martinvonz@google.com>
parents:
43080
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changeset
|
1210 if util.safehasattr(self.data, 'next') or util.safehasattr( |
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|
1211 self.data, b'__next__' |
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|
1212 ): |
21001
c93bb6a08fa1
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diff
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|
1213 buff = util.chunkbuffer(self.data) |
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|
1214 chunk = buff.read(preferedchunksize) |
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|
1215 while chunk: |
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1216 yield chunk |
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1217 chunk = buff.read(preferedchunksize) |
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1218 elif len(self.data): |
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1219 yield self.data |
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1220 |
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1221 |
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1222 flaginterrupt = -1 |
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1223 |
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1224 |
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1225 class interrupthandler(unpackermixin): |
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1226 """read one part and process it with restricted capability |
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1227 |
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1228 This allows to transmit exception raised on the producer size during part |
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1229 iteration while the consumer is reading a part. |
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1230 |
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1231 Part processed in this manner only have access to a ui object,""" |
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1232 |
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1233 def __init__(self, ui, fp): |
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1234 super(interrupthandler, self).__init__(fp) |
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1235 self.ui = ui |
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1236 |
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1237 def _readpartheader(self): |
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1238 """reads a part header size and return the bytes blob |
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1239 |
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1240 returns None if empty""" |
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1241 headersize = self._unpack(_fpartheadersize)[0] |
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1242 if headersize < 0: |
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1243 raise error.BundleValueError( |
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1244 b'negative part header size: %i' % headersize |
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1245 ) |
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1246 indebug(self.ui, b'part header size: %i\n' % headersize) |
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1247 if headersize: |
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1248 return self._readexact(headersize) |
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1249 return None |
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1250 |
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1251 def __call__(self): |
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1252 |
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1253 self.ui.debug( |
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1254 b'bundle2-input-stream-interrupt: opening out of band context\n' |
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1255 ) |
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1256 indebug(self.ui, b'bundle2 stream interruption, looking for a part.') |
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1257 headerblock = self._readpartheader() |
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1258 if headerblock is None: |
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1259 indebug(self.ui, b'no part found during interruption.') |
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1260 return |
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1261 part = unbundlepart(self.ui, headerblock, self._fp) |
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1262 op = interruptoperation(self.ui) |
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1263 hardabort = False |
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1264 try: |
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1265 _processpart(op, part) |
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1266 except (SystemExit, KeyboardInterrupt): |
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1267 hardabort = True |
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1268 raise |
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1269 finally: |
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1270 if not hardabort: |
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1271 part.consume() |
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1272 self.ui.debug( |
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1273 b'bundle2-input-stream-interrupt: closing out of band context\n' |
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1274 ) |
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1275 |
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1276 |
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1277 class interruptoperation(object): |
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1278 """A limited operation to be use by part handler during interruption |
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1279 |
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1280 It only have access to an ui object. |
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1281 """ |
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1282 |
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1283 def __init__(self, ui): |
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1284 self.ui = ui |
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1285 self.reply = None |
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1286 self.captureoutput = False |
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1287 |
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|
1288 @property |
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1289 def repo(self): |
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1290 raise error.ProgrammingError(b'no repo access from stream interruption') |
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1291 |
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1292 def gettransaction(self): |
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1293 raise TransactionUnavailable(b'no repo access from stream interruption') |
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1294 |
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1295 |
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1296 def decodepayloadchunks(ui, fh): |
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1297 """Reads bundle2 part payload data into chunks. |
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1298 |
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1299 Part payload data consists of framed chunks. This function takes |
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1300 a file handle and emits those chunks. |
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1301 """ |
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1302 dolog = ui.configbool(b'devel', b'bundle2.debug') |
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1303 debug = ui.debug |
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1304 |
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1305 headerstruct = struct.Struct(_fpayloadsize) |
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1306 headersize = headerstruct.size |
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1307 unpack = headerstruct.unpack |
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1308 |
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1309 readexactly = changegroup.readexactly |
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1310 read = fh.read |
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1311 |
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1312 chunksize = unpack(readexactly(fh, headersize))[0] |
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1313 indebug(ui, b'payload chunk size: %i' % chunksize) |
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1314 |
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1315 # changegroup.readexactly() is inlined below for performance. |
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1316 while chunksize: |
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1317 if chunksize >= 0: |
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1318 s = read(chunksize) |
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1319 if len(s) < chunksize: |
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1320 raise error.Abort( |
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1321 _( |
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1322 b'stream ended unexpectedly ' |
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1323 b' (got %d bytes, expected %d)' |
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1324 ) |
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1325 % (len(s), chunksize) |
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1326 ) |
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1327 |
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1328 yield s |
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1329 elif chunksize == flaginterrupt: |
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1330 # Interrupt "signal" detected. The regular stream is interrupted |
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1331 # and a bundle2 part follows. Consume it. |
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1332 interrupthandler(ui, fh)() |
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1333 else: |
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1334 raise error.BundleValueError( |
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1335 b'negative payload chunk size: %s' % chunksize |
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1336 ) |
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1337 |
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1338 s = read(headersize) |
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1339 if len(s) < headersize: |
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1340 raise error.Abort( |
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1341 _(b'stream ended unexpectedly (got %d bytes, expected %d)') |
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1342 % (len(s), chunksize) |
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1343 ) |
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1344 |
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1345 chunksize = unpack(s)[0] |
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1346 |
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1347 # indebug() inlined for performance. |
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1348 if dolog: |
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1349 debug(b'bundle2-input: payload chunk size: %i\n' % chunksize) |
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1350 |
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1351 |
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1352 class unbundlepart(unpackermixin): |
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1353 """a bundle part read from a bundle""" |
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1354 |
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1355 def __init__(self, ui, header, fp): |
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1356 super(unbundlepart, self).__init__(fp) |
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1357 self._seekable = util.safehasattr(fp, 'seek') and util.safehasattr( |
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1358 fp, b'tell' |
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1359 ) |
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1360 self.ui = ui |
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1361 # unbundle state attr |
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1362 self._headerdata = header |
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1363 self._headeroffset = 0 |
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1364 self._initialized = False |
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1365 self.consumed = False |
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1366 # part data |
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1367 self.id = None |
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1368 self.type = None |
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1369 self.mandatoryparams = None |
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1370 self.advisoryparams = None |
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1371 self.params = None |
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1372 self.mandatorykeys = () |
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1373 self._readheader() |
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1374 self._mandatory = None |
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1375 self._pos = 0 |
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1376 |
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1377 def _fromheader(self, size): |
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1378 """return the next <size> byte from the header""" |
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1379 offset = self._headeroffset |
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1380 data = self._headerdata[offset : (offset + size)] |
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1381 self._headeroffset = offset + size |
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1382 return data |
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1383 |
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1384 def _unpackheader(self, format): |
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1385 """read given format from header |
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1386 |
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1387 This automatically compute the size of the format to read.""" |
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1388 data = self._fromheader(struct.calcsize(format)) |
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1389 return _unpack(format, data) |
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1390 |
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1391 def _initparams(self, mandatoryparams, advisoryparams): |
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1392 """internal function to setup all logic related parameters""" |
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1393 # make it read only to prevent people touching it by mistake. |
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1394 self.mandatoryparams = tuple(mandatoryparams) |
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1395 self.advisoryparams = tuple(advisoryparams) |
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1396 # user friendly UI |
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1397 self.params = util.sortdict(self.mandatoryparams) |
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1398 self.params.update(self.advisoryparams) |
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1399 self.mandatorykeys = frozenset(p[0] for p in mandatoryparams) |
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1400 |
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1401 def _readheader(self): |
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1402 """read the header and setup the object""" |
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1403 typesize = self._unpackheader(_fparttypesize)[0] |
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1404 self.type = self._fromheader(typesize) |
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1405 indebug(self.ui, b'part type: "%s"' % self.type) |
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1406 self.id = self._unpackheader(_fpartid)[0] |
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1407 indebug(self.ui, b'part id: "%s"' % pycompat.bytestr(self.id)) |
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1408 # extract mandatory bit from type |
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1409 self.mandatory = self.type != self.type.lower() |
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1410 self.type = self.type.lower() |
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1411 ## reading parameters |
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1412 # param count |
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1413 mancount, advcount = self._unpackheader(_fpartparamcount) |
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1414 indebug(self.ui, b'part parameters: %i' % (mancount + advcount)) |
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1415 # param size |
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1416 fparamsizes = _makefpartparamsizes(mancount + advcount) |
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1417 paramsizes = self._unpackheader(fparamsizes) |
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1418 # make it a list of couple again |
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1419 paramsizes = list(zip(paramsizes[::2], paramsizes[1::2])) |
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1420 # split mandatory from advisory |
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1421 mansizes = paramsizes[:mancount] |
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1422 advsizes = paramsizes[mancount:] |
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1423 # retrieve param value |
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1424 manparams = [] |
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1425 for key, value in mansizes: |
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1426 manparams.append((self._fromheader(key), self._fromheader(value))) |
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1427 advparams = [] |
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1428 for key, value in advsizes: |
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1429 advparams.append((self._fromheader(key), self._fromheader(value))) |
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1430 self._initparams(manparams, advparams) |
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1431 ## part payload |
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1432 self._payloadstream = util.chunkbuffer(self._payloadchunks()) |
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1433 # we read the data, tell it |
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1434 self._initialized = True |
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1435 |
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|
1436 def _payloadchunks(self): |
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1437 """Generator of decoded chunks in the payload.""" |
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1438 return decodepayloadchunks(self.ui, self._fp) |
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1439 |
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|
1440 def consume(self): |
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|
1441 """Read the part payload until completion. |
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|
1442 |
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|
1443 By consuming the part data, the underlying stream read offset will |
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|
1444 be advanced to the next part (or end of stream). |
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|
1445 """ |
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|
1446 if self.consumed: |
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|
1447 return |
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|
1448 |
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|
1449 chunk = self.read(32768) |
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|
1450 while chunk: |
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|
1451 self._pos += len(chunk) |
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|
1452 chunk = self.read(32768) |
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|
1453 |
21019
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diff
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|
1454 def read(self, size=None): |
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parents:
21016
diff
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|
1455 """read payload data""" |
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|
1456 if not self._initialized: |
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diff
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|
1457 self._readheader() |
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diff
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|
1458 if size is None: |
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diff
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|
1459 data = self._payloadstream.read() |
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1460 else: |
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diff
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|
1461 data = self._payloadstream.read(size) |
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diff
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|
1462 self._pos += len(data) |
21019
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diff
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|
1463 if size is None or len(data) < size: |
25334
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|
1464 if not self.consumed and self._pos: |
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|
1465 self.ui.debug( |
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1466 b'bundle2-input-part: total payload size %i\n' % self._pos |
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|
1467 ) |
21019
3dc09f831a2e
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|
1468 self.consumed = True |
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|
1469 return data |
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|
1470 |
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|
1471 |
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1472 class seekableunbundlepart(unbundlepart): |
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1473 """A bundle2 part in a bundle that is seekable. |
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|
1474 |
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1475 Regular ``unbundlepart`` instances can only be read once. This class |
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1476 extends ``unbundlepart`` to enable bi-directional seeking within the |
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1477 part. |
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|
1478 |
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1479 Bundle2 part data consists of framed chunks. Offsets when seeking |
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1480 refer to the decoded data, not the offsets in the underlying bundle2 |
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1481 stream. |
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|
1482 |
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|
1483 To facilitate quickly seeking within the decoded data, instances of this |
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|
1484 class maintain a mapping between offsets in the underlying stream and |
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1485 the decoded payload. This mapping will consume memory in proportion |
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1486 to the number of chunks within the payload (which almost certainly |
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1487 increases in proportion with the size of the part). |
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1488 """ |
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|
1489 |
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1490 def __init__(self, ui, header, fp): |
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1491 # (payload, file) offsets for chunk starts. |
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|
1492 self._chunkindex = [] |
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|
1493 |
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|
1494 super(seekableunbundlepart, self).__init__(ui, header, fp) |
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|
1495 |
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|
1496 def _payloadchunks(self, chunknum=0): |
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|
1497 '''seek to specified chunk and start yielding data''' |
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|
1498 if len(self._chunkindex) == 0: |
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1499 assert chunknum == 0, b'Must start with chunk 0' |
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1500 self._chunkindex.append((0, self._tellfp())) |
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|
1501 else: |
41759
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40429
diff
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|
1502 assert chunknum < len(self._chunkindex), ( |
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|
1503 b'Unknown chunk %d' % chunknum |
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|
1504 ) |
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|
1505 self._seekfp(self._chunkindex[chunknum][1]) |
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|
1506 |
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|
1507 pos = self._chunkindex[chunknum][0] |
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|
1508 |
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|
1509 for chunk in decodepayloadchunks(self.ui, self._fp): |
8aa43ff9c12c
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|
1510 chunknum += 1 |
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|
1511 pos += len(chunk) |
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|
1512 if chunknum == len(self._chunkindex): |
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|
1513 self._chunkindex.append((pos, self._tellfp())) |
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diff
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|
1514 |
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|
1515 yield chunk |
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|
1516 |
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|
1517 def _findchunk(self, pos): |
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1518 '''for a given payload position, return a chunk number and offset''' |
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|
1519 for chunk, (ppos, fpos) in enumerate(self._chunkindex): |
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|
1520 if ppos == pos: |
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1521 return chunk, 0 |
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1522 elif ppos > pos: |
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1523 return chunk - 1, pos - self._chunkindex[chunk - 1][0] |
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|
1524 raise ValueError(b'Unknown chunk') |
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|
1525 |
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|
1526 def tell(self): |
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|
1527 return self._pos |
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|
1528 |
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|
1529 def seek(self, offset, whence=os.SEEK_SET): |
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|
1530 if whence == os.SEEK_SET: |
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|
1531 newpos = offset |
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|
1532 elif whence == os.SEEK_CUR: |
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|
1533 newpos = self._pos + offset |
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|
1534 elif whence == os.SEEK_END: |
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|
1535 if not self.consumed: |
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|
1536 # Can't use self.consume() here because it advances self._pos. |
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|
1537 chunk = self.read(32768) |
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|
1538 while chunk: |
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|
1539 chunk = self.read(32768) |
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|
1540 newpos = self._chunkindex[-1][0] - offset |
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1541 else: |
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|
1542 raise ValueError(b'Unknown whence value: %r' % (whence,)) |
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|
1543 |
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|
1544 if newpos > self._chunkindex[-1][0] and not self.consumed: |
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|
1545 # Can't use self.consume() here because it advances self._pos. |
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|
1546 chunk = self.read(32768) |
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|
1547 while chunk: |
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|
1548 chunk = self.read(32668) |
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1549 |
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|
1550 if not 0 <= newpos <= self._chunkindex[-1][0]: |
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|
1551 raise ValueError(b'Offset out of range') |
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|
1552 |
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changeset
|
1553 if self._pos != newpos: |
f0b498cfc5c8
bundle2.unbundlepart: implement seek()
Eric Sumner <ericsumner@fb.com>
parents:
24036
diff
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|
1554 chunk, internaloffset = self._findchunk(newpos) |
f0b498cfc5c8
bundle2.unbundlepart: implement seek()
Eric Sumner <ericsumner@fb.com>
parents:
24036
diff
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|
1555 self._payloadstream = util.chunkbuffer(self._payloadchunks(chunk)) |
f0b498cfc5c8
bundle2.unbundlepart: implement seek()
Eric Sumner <ericsumner@fb.com>
parents:
24036
diff
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|
1556 adjust = self.read(internaloffset) |
f0b498cfc5c8
bundle2.unbundlepart: implement seek()
Eric Sumner <ericsumner@fb.com>
parents:
24036
diff
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|
1557 if len(adjust) != internaloffset: |
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parents:
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diff
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|
1558 raise error.Abort(_(b'Seek failed\n')) |
24037
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bundle2.unbundlepart: implement seek()
Eric Sumner <ericsumner@fb.com>
parents:
24036
diff
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|
1559 self._pos = newpos |
f0b498cfc5c8
bundle2.unbundlepart: implement seek()
Eric Sumner <ericsumner@fb.com>
parents:
24036
diff
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|
1560 |
31889
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bundle2: move 'seek' and 'tell' methods off the unpackermixin class
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
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31863
diff
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|
1561 def _seekfp(self, offset, whence=0): |
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bundle2: move 'seek' and 'tell' methods off the unpackermixin class
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diff
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|
1562 """move the underlying file pointer |
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Pierre-Yves David <pierre-yves.david@ens-lyon.org>
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diff
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|
1563 |
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31863
diff
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|
1564 This method is meant for internal usage by the bundle2 protocol only. |
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|
1565 They directly manipulate the low level stream including bundle2 level |
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diff
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|
1566 instruction. |
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diff
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|
1567 |
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diff
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|
1568 Do not use it to implement higher-level logic or methods.""" |
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diff
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|
1569 if self._seekable: |
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|
1570 return self._fp.seek(offset, whence) |
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|
1571 else: |
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|
1572 raise NotImplementedError(_(b'File pointer is not seekable')) |
31889
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diff
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|
1573 |
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|
1574 def _tellfp(self): |
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|
1575 """return the file offset, or None if file is not seekable |
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|
1576 |
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|
1577 This method is meant for internal usage by the bundle2 protocol only. |
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|
1578 They directly manipulate the low level stream including bundle2 level |
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|
1579 instruction. |
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|
1580 |
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|
1581 Do not use it to implement higher-level logic or methods.""" |
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|
1582 if self._seekable: |
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|
1583 try: |
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|
1584 return self._fp.tell() |
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1585 except IOError as e: |
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|
1586 if e.errno == errno.ESPIPE: |
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|
1587 self._seekable = False |
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|
1588 else: |
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|
1589 raise |
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|
1590 return None |
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|
1591 |
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|
1592 |
25317
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25315
diff
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|
1593 # These are only the static capabilities. |
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|
1594 # Check the 'getrepocaps' function for the rest. |
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1595 capabilities = { |
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1596 b'HG20': (), |
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1597 b'bookmarks': (), |
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|
1598 b'error': (b'abort', b'unsupportedcontent', b'pushraced', b'pushkey'), |
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|
1599 b'listkeys': (), |
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1600 b'pushkey': (), |
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|
1601 b'digests': tuple(sorted(util.DIGESTS.keys())), |
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|
1602 b'remote-changegroup': (b'http', b'https'), |
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|
1603 b'hgtagsfnodes': (), |
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|
1604 b'phases': (b'heads',), |
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|
1605 b'stream': (b'v2',), |
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|
1606 } |
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|
1607 |
22341
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|
1608 |
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|
1609 def getrepocaps(repo, allowpushback=False, role=None): |
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|
1610 """return the bundle2 capabilities for a given repo |
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|
1611 |
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|
1612 Exists to allow extensions (like evolution) to mutate the capabilities. |
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|
1613 |
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1614 The returned value is used for servers advertising their capabilities as |
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|
1615 well as clients advertising their capabilities to servers as part of |
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1616 bundle2 requests. The ``role`` argument specifies which is which. |
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|
1617 """ |
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1618 if role not in (b'client', b'server'): |
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|
1619 raise error.ProgrammingError(b'role argument must be client or server') |
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|
1620 |
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|
1621 caps = capabilities.copy() |
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1622 caps[b'changegroup'] = tuple( |
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1623 sorted(changegroup.supportedincomingversions(repo)) |
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|
1624 ) |
22953
b1d694d3975e
obsolete: add exchange option
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parents:
22661
diff
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|
1625 if obsolete.isenabled(repo, obsolete.exchangeopt): |
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|
1626 supportedformat = tuple(b'V%i' % v for v in obsolete.formats) |
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|
1627 caps[b'obsmarkers'] = supportedformat |
23439
743736fc7c41
bundle2-push: provide transaction to reply unbundler
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parents:
23438
diff
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|
1628 if allowpushback: |
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|
1629 caps[b'pushback'] = () |
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1630 cpmode = repo.ui.config(b'server', b'concurrent-push-mode') |
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|
1631 if cpmode == b'check-related': |
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|
1632 caps[b'checkheads'] = (b'related',) |
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|
1633 if b'phases' in repo.ui.configlist(b'devel', b'legacy.exchange'): |
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|
1634 caps.pop(b'phases') |
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|
1635 |
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|
1636 # Don't advertise stream clone support in server mode if not configured. |
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1637 if role == b'server': |
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|
1638 streamsupported = repo.ui.configbool( |
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|
1639 b'server', b'uncompressed', untrusted=True |
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|
1640 ) |
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|
1641 featuresupported = repo.ui.configbool(b'server', b'bundle2.stream') |
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1642 |
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|
1643 if not streamsupported or not featuresupported: |
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1644 caps.pop(b'stream') |
35792
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|
1645 # Else always advertise support on client, because payload support |
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|
1646 # should always be advertised. |
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|
1647 |
46633
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|
1648 # b'rev-branch-cache is no longer advertised, but still supported |
7015b0232c5e
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|
1649 # for legacy clients. |
7015b0232c5e
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|
1650 |
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|
1651 return caps |
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1652 |
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|
1653 |
21644
17755dd8c509
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21628
diff
changeset
|
1654 def bundle2caps(remote): |
23139
e53f6b72a0e4
spelling: fixes from proofreading of spell checker issues
Mads Kiilerich <madski@unity3d.com>
parents:
23067
diff
changeset
|
1655 """return the bundle capabilities of a peer as dict""" |
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|
1656 raw = remote.capable(b'bundle2') |
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1657 if not raw and raw != b'': |
21644
17755dd8c509
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Pierre-Yves David <pierre-yves.david@fb.com>
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diff
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|
1658 return {} |
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parents:
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|
1659 capsblob = urlreq.unquote(remote.capable(b'bundle2')) |
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17755dd8c509
bundle2: introduce a bundle2caps function
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
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|
1660 return decodecaps(capsblob) |
21014
a6246bba7b9e
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parents:
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diff
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|
1661 |
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|
1662 |
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Pierre-Yves David <pierre-yves.david@fb.com>
parents:
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diff
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|
1663 def obsmarkersversion(caps): |
45942
89a2afe31e82
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Augie Fackler <raf@durin42.com>
parents:
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|
1664 """extract the list of supported obsmarkers versions from a bundle2caps dict""" |
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|
1665 obscaps = caps.get(b'obsmarkers', ()) |
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|
1666 return [int(c[1:]) for c in obscaps if c.startswith(b'V')] |
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|
1667 |
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1668 |
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|
1669 def writenewbundle( |
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|
1670 ui, |
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|
1671 repo, |
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|
1672 source, |
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|
1673 filename, |
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|
1674 bundletype, |
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diff
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|
1675 outgoing, |
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diff
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|
1676 opts, |
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parents:
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|
1677 vfs=None, |
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parents:
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|
1678 compression=None, |
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|
1679 compopts=None, |
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|
1680 ): |
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|
1681 if bundletype.startswith(b'HG10'): |
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parents:
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|
1682 cg = changegroup.makechangegroup(repo, outgoing, b'01', source) |
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|
1683 return writebundle( |
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diff
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|
1684 ui, |
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diff
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|
1685 cg, |
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|
1686 filename, |
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|
1687 bundletype, |
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diff
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|
1688 vfs=vfs, |
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|
1689 compression=compression, |
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|
1690 compopts=compopts, |
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|
1691 ) |
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1692 elif not bundletype.startswith(b'HG20'): |
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parents:
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|
1693 raise error.ProgrammingError(b'unknown bundle type: %s' % bundletype) |
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9dc36df78403
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
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diff
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|
1694 |
32516
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bundle: add an experimental knob to include obsmarkers in bundle
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
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diff
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|
1695 caps = {} |
43077
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|
1696 if b'obsolescence' in opts: |
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parents:
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|
1697 caps[b'obsmarkers'] = (b'V1',) |
32516
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bundle: add an experimental knob to include obsmarkers in bundle
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parents:
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diff
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|
1698 bundle = bundle20(ui, caps) |
32221
9dc36df78403
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parents:
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diff
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|
1699 bundle.setcompression(compression, compopts) |
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|
1700 _addpartsfromopts(ui, repo, bundle, source, outgoing, opts) |
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diff
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|
1701 chunkiter = bundle.getchunks() |
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|
1702 |
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|
1703 return changegroup.writechunks(ui, chunkiter, filename, vfs=vfs) |
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|
1704 |
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1705 |
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|
1706 def _addpartsfromopts(ui, repo, bundler, source, outgoing, opts): |
9dc36df78403
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|
1707 # We should eventually reconcile this logic with the one behind |
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|
1708 # 'exchange.getbundle2partsgenerator'. |
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1709 # |
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1710 # The type of input from 'getbundle' and 'writenewbundle' are a bit |
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|
1711 # different right now. So we keep them separated for now for the sake of |
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1712 # simplicity. |
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1713 |
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66c0ff381cfc
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Boris Feld <boris.feld@octobus.net>
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diff
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|
1714 # we might not always want a changegroup in such bundle, for example in |
66c0ff381cfc
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parents:
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|
1715 # stream bundles |
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1716 if opts.get(b'changegroup', True): |
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|
1717 cgversion = opts.get(b'cg.version') |
37005
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Boris Feld <boris.feld@octobus.net>
parents:
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diff
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|
1718 if cgversion is None: |
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Boris Feld <boris.feld@octobus.net>
parents:
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diff
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|
1719 cgversion = changegroup.safeversion(repo) |
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Boris Feld <boris.feld@octobus.net>
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|
1720 cg = changegroup.makechangegroup(repo, outgoing, cgversion, source) |
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|
1721 part = bundler.newpart(b'changegroup', data=cg.getchunks()) |
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1722 part.addparam(b'version', cg.version) |
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|
1723 if b'clcount' in cg.extras: |
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|
1724 part.addparam( |
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|
1725 b'nbchanges', b'%d' % cg.extras[b'clcount'], mandatory=False |
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|
1726 ) |
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|
1727 if opts.get(b'phases') and repo.revs( |
45144
c93dd9d9f1e6
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Manuel Jacob <me@manueljacob.de>
parents:
45117
diff
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|
1728 b'%ln and secret()', outgoing.ancestorsof |
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|
1729 ): |
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|
1730 part.addparam( |
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|
1731 b'targetphase', b'%d' % phases.secret, mandatory=False |
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|
1732 ) |
47226
19d4802cb304
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
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diff
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|
1733 if repository.REPO_FEATURE_SIDE_DATA in repo.features: |
19d4802cb304
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|
1734 part.addparam(b'exp-sidedata', b'1') |
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|
1735 |
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|
1736 if opts.get(b'streamv2', False): |
37167
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Boris Feld <boris.feld@octobus.net>
parents:
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diff
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|
1737 addpartbundlestream2(bundler, repo, stream=True) |
6f467adf9f05
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|
1738 |
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|
1739 if opts.get(b'tagsfnodescache', True): |
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diff
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|
1740 addparttagsfnodescache(repo, bundler, outgoing) |
6c7a6b04b274
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|
1741 |
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|
1742 if opts.get(b'revbranchcache', True): |
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diff
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|
1743 addpartrevbranchcache(repo, bundler, outgoing) |
32223
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bundle: add optional 'tagsfnodecache' data to on disk bundle (issue5543)
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|
1744 |
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|
1745 if opts.get(b'obsolescence', False): |
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|
1746 obsmarkers = repo.obsstore.relevantmarkers(outgoing.missing) |
46165
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diff
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|
1747 buildobsmarkerspart( |
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diff
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|
1748 bundler, |
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diff
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|
1749 obsmarkers, |
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|
1750 mandatory=opts.get(b'obsolescence-mandatory', True), |
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|
1751 ) |
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|
1752 |
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|
1753 if opts.get(b'phases', False): |
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Martin von Zweigbergk <martinvonz@google.com>
parents:
33030
diff
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|
1754 headsbyphase = phases.subsetphaseheads(repo, outgoing.missing) |
34319
5779d096a696
phases: move binary encoding into a reusable function
Boris Feld <boris.feld@octobus.net>
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diff
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|
1755 phasedata = phases.binaryencode(headsbyphase) |
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|
1756 bundler.newpart(b'phase-heads', data=phasedata) |
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|
1757 |
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1758 |
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|
1759 def addparttagsfnodescache(repo, bundler, outgoing): |
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|
1760 # we include the tags fnode cache for the bundle changeset |
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|
1761 # (as an optional parts) |
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|
1762 cache = tags.hgtagsfnodescache(repo.unfiltered()) |
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|
1763 chunks = [] |
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|
1764 |
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|
1765 # .hgtags fnodes are only relevant for head changesets. While we could |
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changeset
|
1766 # transfer values for all known nodes, there will likely be little to |
6068712cbf03
bundle2: move tagsfnodecache generation in a generic function
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1767 # no benefit. |
6068712cbf03
bundle2: move tagsfnodecache generation in a generic function
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diff
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|
1768 # |
6068712cbf03
bundle2: move tagsfnodecache generation in a generic function
Pierre-Yves David <pierre-yves.david@octobus.net>
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diff
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|
1769 # We don't bother using a generator to produce output data because |
6068712cbf03
bundle2: move tagsfnodecache generation in a generic function
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parents:
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diff
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|
1770 # a) we only have 40 bytes per head and even esoteric numbers of heads |
6068712cbf03
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|
1771 # consume little memory (1M heads is 40MB) b) we don't want to send the |
6068712cbf03
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diff
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|
1772 # part if we don't have entries and knowing if we have entries requires |
6068712cbf03
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|
1773 # cache lookups. |
45144
c93dd9d9f1e6
discovery: change users of `outgoing.missingheads` to `outgoing.ancestorsof`
Manuel Jacob <me@manueljacob.de>
parents:
45117
diff
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|
1774 for node in outgoing.ancestorsof: |
32222
6068712cbf03
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parents:
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|
1775 # Don't compute missing, as this may slow down serving. |
6068712cbf03
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|
1776 fnode = cache.getfnode(node, computemissing=False) |
46495
5aac1a1a5beb
tagcache: distinguish between invalid and missing entries
Matt Harbison <matt_harbison@yahoo.com>
parents:
46409
diff
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|
1777 if fnode: |
32222
6068712cbf03
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parents:
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|
1778 chunks.extend([node, fnode]) |
6068712cbf03
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
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|
1779 |
6068712cbf03
bundle2: move tagsfnodecache generation in a generic function
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|
1780 if chunks: |
43077
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Augie Fackler <augie@google.com>
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|
1781 bundler.newpart(b'hgtagsfnodes', data=b''.join(chunks)) |
32222
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|
1782 |
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|
1783 |
36964
79b73be4dda5
rev-branch-cache: add a function to generate a part
Boris Feld <boris.feld@octobus.net>
parents:
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|
1784 def addpartrevbranchcache(repo, bundler, outgoing): |
79b73be4dda5
rev-branch-cache: add a function to generate a part
Boris Feld <boris.feld@octobus.net>
parents:
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|
1785 # we include the rev branch cache for the bundle changeset |
79b73be4dda5
rev-branch-cache: add a function to generate a part
Boris Feld <boris.feld@octobus.net>
parents:
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|
1786 # (as an optional parts) |
79b73be4dda5
rev-branch-cache: add a function to generate a part
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|
1787 cache = repo.revbranchcache() |
79b73be4dda5
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|
1788 cl = repo.unfiltered().changelog |
79b73be4dda5
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Boris Feld <boris.feld@octobus.net>
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|
1789 branchesdata = collections.defaultdict(lambda: (set(), set())) |
79b73be4dda5
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Boris Feld <boris.feld@octobus.net>
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|
1790 for node in outgoing.missing: |
79b73be4dda5
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|
1791 branch, close = cache.branchinfo(cl.rev(node)) |
79b73be4dda5
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Boris Feld <boris.feld@octobus.net>
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|
1792 branchesdata[branch][close].add(node) |
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Boris Feld <boris.feld@octobus.net>
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|
1793 |
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Boris Feld <boris.feld@octobus.net>
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|
1794 def generate(): |
79b73be4dda5
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|
1795 for branch, (nodes, closed) in sorted(branchesdata.items()): |
79b73be4dda5
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parents:
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|
1796 utf8branch = encoding.fromlocal(branch) |
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parents:
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|
1797 yield rbcstruct.pack(len(utf8branch), len(nodes), len(closed)) |
79b73be4dda5
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|
1798 yield utf8branch |
79b73be4dda5
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Boris Feld <boris.feld@octobus.net>
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|
1799 for n in sorted(nodes): |
79b73be4dda5
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Boris Feld <boris.feld@octobus.net>
parents:
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|
1800 yield n |
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Boris Feld <boris.feld@octobus.net>
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|
1801 for n in sorted(closed): |
79b73be4dda5
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Boris Feld <boris.feld@octobus.net>
parents:
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|
1802 yield n |
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|
1803 |
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Augie Fackler <augie@google.com>
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|
1804 bundler.newpart(b'cache:rev-branch-cache', data=generate(), mandatory=False) |
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|
1805 |
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|
1806 |
37167
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|
1807 def _formatrequirementsspec(requirements): |
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|
1808 requirements = [req for req in requirements if req != b"shared"] |
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|
1809 return urlreq.quote(b','.join(sorted(requirements))) |
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|
1810 |
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|
1811 |
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|
1812 def _formatrequirementsparams(requirements): |
6f467adf9f05
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|
1813 requirements = _formatrequirementsspec(requirements) |
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|
1814 params = b"%s%s" % (urlreq.quote(b"requirements="), requirements) |
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|
1815 return params |
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|
1816 |
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|
1817 |
46713
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|
1818 def format_remote_wanted_sidedata(repo): |
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|
1819 """Formats a repo's wanted sidedata categories into a bytestring for |
bc2519513ae0
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|
1820 capabilities exchange.""" |
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Raphaël Gomès <rgomes@octobus.net>
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|
1821 wanted = b"" |
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|
1822 if repo._wanted_sidedata: |
bc2519513ae0
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|
1823 wanted = b','.join( |
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|
1824 pycompat.bytestr(c) for c in sorted(repo._wanted_sidedata) |
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|
1825 ) |
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|
1826 return wanted |
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|
1827 |
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|
1828 |
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Raphaël Gomès <rgomes@octobus.net>
parents:
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|
1829 def read_remote_wanted_sidedata(remote): |
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sidedata-exchange: add `wanted_sidedata` and `sidedata_computers` to repos
Raphaël Gomès <rgomes@octobus.net>
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|
1830 sidedata_categories = remote.capable(b'exp-wanted-sidedata') |
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Raphaël Gomès <rgomes@octobus.net>
parents:
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|
1831 return read_wanted_sidedata(sidedata_categories) |
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|
1832 |
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|
1833 |
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|
1834 def read_wanted_sidedata(formatted): |
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|
1835 if formatted: |
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|
1836 return set(formatted.split(b',')) |
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|
1837 return set() |
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|
1838 |
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|
1839 |
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|
1840 def addpartbundlestream2(bundler, repo, **kwargs): |
43506
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Augie Fackler <augie@google.com>
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|
1841 if not kwargs.get('stream', False): |
37167
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|
1842 return |
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|
1843 |
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|
1844 if not streamclone.allowservergeneration(repo): |
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|
1845 raise error.Abort( |
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|
1846 _( |
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1847 b'stream data requested but server does not allow ' |
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1848 b'this feature' |
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|
1849 ), |
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|
1850 hint=_( |
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1851 b'well-behaved clients should not be ' |
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|
1852 b'requesting stream data from servers not ' |
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|
1853 b'advertising it; the client may be buggy' |
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|
1854 ), |
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|
1855 ) |
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|
1856 |
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changeset
|
1857 # Stream clones don't compress well. And compression undermines a |
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|
1858 # goal of stream clones, which is to be fast. Communicate the desire |
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|
1859 # to avoid compression to consumers of the bundle. |
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|
1860 bundler.prefercompressed = False |
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|
1861 |
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|
1862 # get the includes and excludes |
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|
1863 includepats = kwargs.get('includepats') |
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|
1864 excludepats = kwargs.get('excludepats') |
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|
1865 |
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|
1866 narrowstream = repo.ui.configbool( |
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|
1867 b'experimental', b'server.stream-narrow-clones' |
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1868 ) |
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1869 |
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|
1870 if (includepats or excludepats) and not narrowstream: |
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|
1871 raise error.Abort(_(b'server does not support narrow stream clones')) |
40338
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|
1872 |
40398
0ac794e0e285
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Anton Shestakov <av6@dwimlabs.net>
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40372
diff
changeset
|
1873 includeobsmarkers = False |
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1874 if repo.obsstore: |
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1875 remoteversions = obsmarkersversion(bundler.capabilities) |
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1876 if not remoteversions: |
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1877 raise error.Abort( |
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1878 _( |
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1879 b'server has obsolescence markers, but client ' |
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1880 b'cannot receive them via stream clone' |
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1881 ) |
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1882 ) |
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1883 elif repo.obsstore._version in remoteversions: |
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1884 includeobsmarkers = True |
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1885 |
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1886 filecount, bytecount, it = streamclone.generatev2( |
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1887 repo, includepats, excludepats, includeobsmarkers |
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1888 ) |
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1889 requirements = streamclone.streamed_requirements(repo) |
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1890 requirements = _formatrequirementsspec(requirements) |
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1891 part = bundler.newpart(b'stream2', data=it) |
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1892 part.addparam(b'bytecount', b'%d' % bytecount, mandatory=True) |
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1893 part.addparam(b'filecount', b'%d' % filecount, mandatory=True) |
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1894 part.addparam(b'requirements', requirements, mandatory=True) |
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1895 |
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1896 |
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1897 def buildobsmarkerspart(bundler, markers, mandatory=True): |
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1898 """add an obsmarker part to the bundler with <markers> |
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1899 |
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1900 No part is created if markers is empty. |
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1901 Raises ValueError if the bundler doesn't support any known obsmarker format. |
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1902 """ |
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1903 if not markers: |
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1904 return None |
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1905 |
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1906 remoteversions = obsmarkersversion(bundler.capabilities) |
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1907 version = obsolete.commonversion(remoteversions) |
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1908 if version is None: |
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1909 raise ValueError(b'bundler does not support common obsmarker format') |
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1910 stream = obsolete.encodemarkers(markers, True, version=version) |
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1911 return bundler.newpart(b'obsmarkers', data=stream, mandatory=mandatory) |
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1912 |
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1913 |
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1914 def writebundle( |
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1915 ui, cg, filename, bundletype, vfs=None, compression=None, compopts=None |
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1916 ): |
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1917 """Write a bundle file and return its filename. |
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1918 |
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1919 Existing files will not be overwritten. |
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1920 If no filename is specified, a temporary file is created. |
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1921 bz2 compression can be turned off. |
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1922 The bundle file will be deleted in case of errors. |
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1923 """ |
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1924 |
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1925 if bundletype == b"HG20": |
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1926 bundle = bundle20(ui) |
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1927 bundle.setcompression(compression, compopts) |
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1928 part = bundle.newpart(b'changegroup', data=cg.getchunks()) |
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1929 part.addparam(b'version', cg.version) |
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1930 if b'clcount' in cg.extras: |
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1931 part.addparam( |
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1932 b'nbchanges', b'%d' % cg.extras[b'clcount'], mandatory=False |
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1933 ) |
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1934 chunkiter = bundle.getchunks() |
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1935 else: |
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1936 # compression argument is only for the bundle2 case |
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1937 assert compression is None |
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1938 if cg.version != b'01': |
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1939 raise error.Abort( |
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1940 _(b'old bundle types only supports v1 changegroups') |
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1941 ) |
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1942 header, comp = bundletypes[bundletype] |
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1943 if comp not in util.compengines.supportedbundletypes: |
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1944 raise error.Abort(_(b'unknown stream compression type: %s') % comp) |
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1945 compengine = util.compengines.forbundletype(comp) |
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1946 |
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1947 def chunkiter(): |
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1948 yield header |
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1949 for chunk in compengine.compressstream(cg.getchunks(), compopts): |
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1950 yield chunk |
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1951 |
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1952 chunkiter = chunkiter() |
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1953 |
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1954 # parse the changegroup data, otherwise we will block |
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1955 # in case of sshrepo because we don't know the end of the stream |
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1956 return changegroup.writechunks(ui, chunkiter, filename, vfs=vfs) |
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1957 |
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1958 |
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1959 def combinechangegroupresults(op): |
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1960 """logic to combine 0 or more addchangegroup results into one""" |
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1961 results = [r.get(b'return', 0) for r in op.records[b'changegroup']] |
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1962 changedheads = 0 |
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1963 result = 1 |
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1964 for ret in results: |
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1965 # If any changegroup result is 0, return 0 |
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1966 if ret == 0: |
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1967 result = 0 |
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1968 break |
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1969 if ret < -1: |
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1970 changedheads += ret + 1 |
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1971 elif ret > 1: |
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1972 changedheads += ret - 1 |
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1973 if changedheads > 0: |
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1974 result = 1 + changedheads |
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1975 elif changedheads < 0: |
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1976 result = -1 + changedheads |
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1977 return result |
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1978 |
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1979 |
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1980 @parthandler( |
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1981 b'changegroup', |
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1982 ( |
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1983 b'version', |
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1984 b'nbchanges', |
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1985 b'exp-sidedata', |
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1986 b'exp-wanted-sidedata', |
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1987 b'treemanifest', |
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1988 b'targetphase', |
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1989 ), |
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1990 ) |
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1991 def handlechangegroup(op, inpart): |
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1992 """apply a changegroup part on the repo""" |
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1993 from . import localrepo |
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1994 |
32930
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1995 tr = op.gettransaction() |
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1996 unpackerversion = inpart.params.get(b'version', b'01') |
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1997 # We should raise an appropriate exception here |
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1998 cg = changegroup.getunbundler(unpackerversion, inpart, None) |
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1999 # the source and url passed here are overwritten by the one contained in |
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2000 # the transaction.hookargs argument. So 'bundle2' is a placeholder |
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2001 nbchangesets = None |
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2002 if b'nbchanges' in inpart.params: |
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2003 nbchangesets = int(inpart.params.get(b'nbchanges')) |
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2004 if b'treemanifest' in inpart.params and not scmutil.istreemanifest(op.repo): |
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2005 if len(op.repo.changelog) != 0: |
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2006 raise error.Abort( |
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2007 _( |
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2008 b"bundle contains tree manifests, but local repo is " |
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2009 b"non-empty and does not use tree manifests" |
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2010 ) |
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2011 ) |
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|
2012 op.repo.requirements.add(requirements.TREEMANIFEST_REQUIREMENT) |
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2013 op.repo.svfs.options = localrepo.resolvestorevfsoptions( |
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2014 op.repo.ui, op.repo.requirements, op.repo.features |
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2015 ) |
45106
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2016 scmutil.writereporequirements(op.repo) |
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2017 |
33407
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2018 extrakwargs = {} |
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2019 targetphase = inpart.params.get(b'targetphase') |
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2020 if targetphase is not None: |
43506
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2021 extrakwargs['targetphase'] = int(targetphase) |
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2022 |
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2023 remote_sidedata = inpart.params.get(b'exp-wanted-sidedata') |
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2024 extrakwargs['sidedata_categories'] = read_wanted_sidedata(remote_sidedata) |
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2025 |
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2026 ret = _processchangegroup( |
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2027 op, |
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|
2028 cg, |
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|
2029 tr, |
46519
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2030 op.source, |
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2031 b'bundle2', |
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2032 expectedtotal=nbchangesets, |
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|
2033 **extrakwargs |
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|
2034 ) |
20998
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|
2035 if op.reply is not None: |
23139
e53f6b72a0e4
spelling: fixes from proofreading of spell checker issues
Mads Kiilerich <madski@unity3d.com>
parents:
23067
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|
2036 # This is definitely not the final form of this |
20998
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|
2037 # return. But one need to start somewhere. |
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|
2038 part = op.reply.newpart(b'reply:changegroup', mandatory=False) |
33675
24b7c75c6441
bundle2: use bytestr() instead of str() to convert part id to bytes
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|
2039 part.addparam( |
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|
2040 b'in-reply-to', pycompat.bytestr(inpart.id), mandatory=False |
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|
2041 ) |
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|
2042 part.addparam(b'return', b'%i' % ret, mandatory=False) |
21019
3dc09f831a2e
bundle2: lazy unbundle of part payload
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21016
diff
changeset
|
2043 assert not inpart.read() |
20950
c7ceae0faf69
bundle2: first crude version of bundling changeset with bundle2
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|
2044 |
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|
2045 |
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|
2046 _remotechangegroupparams = tuple( |
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|
2047 [b'url', b'size', b'digests'] |
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|
2048 + [b'digest:%s' % k for k in util.DIGESTS.keys()] |
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|
2049 ) |
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|
2050 |
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|
2051 |
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|
2052 @parthandler(b'remote-changegroup', _remotechangegroupparams) |
23029
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Mike Hommey <mh@glandium.org>
parents:
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|
2053 def handleremotechangegroup(op, inpart): |
149fc8a44184
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parents:
23011
diff
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|
2054 """apply a bundle10 on the repo, given an url and validation information |
149fc8a44184
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|
2055 |
149fc8a44184
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|
2056 All the information about the remote bundle to import are given as |
149fc8a44184
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|
2057 parameters. The parameters include: |
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|
2058 - url: the url to the bundle10. |
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parents:
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|
2059 - size: the bundle10 file size. It is used to validate what was |
149fc8a44184
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|
2060 retrieved by the client matches the server knowledge about the bundle. |
149fc8a44184
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|
2061 - digests: a space separated list of the digest types provided as |
149fc8a44184
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|
2062 parameters. |
149fc8a44184
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Mike Hommey <mh@glandium.org>
parents:
23011
diff
changeset
|
2063 - digest:<digest-type>: the hexadecimal representation of the digest with |
149fc8a44184
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Mike Hommey <mh@glandium.org>
parents:
23011
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changeset
|
2064 that name. Like the size, it is used to validate what was retrieved by |
149fc8a44184
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Mike Hommey <mh@glandium.org>
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|
2065 the client matches what the server knows about the bundle. |
149fc8a44184
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|
2066 |
149fc8a44184
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|
2067 When multiple digest types are given, all of them are checked. |
149fc8a44184
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|
2068 """ |
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parents:
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|
2069 try: |
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|
2070 raw_url = inpart.params[b'url'] |
23029
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|
2071 except KeyError: |
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changeset
|
2072 raise error.Abort(_(b'remote-changegroup: missing "%s" param') % b'url') |
46907
ffd3e823a7e5
urlutil: extract `url` related code from `util` into the new module
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
46780
diff
changeset
|
2073 parsed_url = urlutil.url(raw_url) |
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|
2074 if parsed_url.scheme not in capabilities[b'remote-changegroup']: |
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|
2075 raise error.Abort( |
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|
2076 _(b'remote-changegroup does not support %s urls') |
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|
2077 % parsed_url.scheme |
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|
2078 ) |
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parents:
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|
2079 |
149fc8a44184
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parents:
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changeset
|
2080 try: |
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|
2081 size = int(inpart.params[b'size']) |
23029
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|
2082 except ValueError: |
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|
2083 raise error.Abort( |
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|
2084 _(b'remote-changegroup: invalid value for param "%s"') % b'size' |
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|
2085 ) |
23029
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|
2086 except KeyError: |
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|
2087 raise error.Abort( |
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|
2088 _(b'remote-changegroup: missing "%s" param') % b'size' |
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|
2089 ) |
23029
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parents:
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changeset
|
2090 |
149fc8a44184
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changeset
|
2091 digests = {} |
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2092 for typ in inpart.params.get(b'digests', b'').split(): |
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diff
changeset
|
2093 param = b'digest:%s' % typ |
23029
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Mike Hommey <mh@glandium.org>
parents:
23011
diff
changeset
|
2094 try: |
149fc8a44184
bundle2: client side support for a part to import external bundles
Mike Hommey <mh@glandium.org>
parents:
23011
diff
changeset
|
2095 value = inpart.params[param] |
149fc8a44184
bundle2: client side support for a part to import external bundles
Mike Hommey <mh@glandium.org>
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diff
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|
2096 except KeyError: |
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|
2097 raise error.Abort( |
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diff
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|
2098 _(b'remote-changegroup: missing "%s" param') % param |
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|
2099 ) |
23029
149fc8a44184
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Mike Hommey <mh@glandium.org>
parents:
23011
diff
changeset
|
2100 digests[typ] = value |
149fc8a44184
bundle2: client side support for a part to import external bundles
Mike Hommey <mh@glandium.org>
parents:
23011
diff
changeset
|
2101 |
149fc8a44184
bundle2: client side support for a part to import external bundles
Mike Hommey <mh@glandium.org>
parents:
23011
diff
changeset
|
2102 real_part = util.digestchecker(url.open(op.ui, raw_url), size, digests) |
149fc8a44184
bundle2: client side support for a part to import external bundles
Mike Hommey <mh@glandium.org>
parents:
23011
diff
changeset
|
2103 |
32930
af31d531dda0
changegroup: let callers pass in transaction to apply() (API)
Martin von Zweigbergk <martinvonz@google.com>
parents:
32892
diff
changeset
|
2104 tr = op.gettransaction() |
25919
8221fefaea08
bundle2: use absolute_import
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25660
diff
changeset
|
2105 from . import exchange |
43076
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diff
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|
2106 |
23029
149fc8a44184
bundle2: client side support for a part to import external bundles
Mike Hommey <mh@glandium.org>
parents:
23011
diff
changeset
|
2107 cg = exchange.readbundle(op.repo.ui, real_part, raw_url) |
149fc8a44184
bundle2: client side support for a part to import external bundles
Mike Hommey <mh@glandium.org>
parents:
23011
diff
changeset
|
2108 if not isinstance(cg, changegroup.cg1unpacker): |
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|
2109 raise error.Abort( |
46907
ffd3e823a7e5
urlutil: extract `url` related code from `util` into the new module
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
46780
diff
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|
2110 _(b'%s: not a bundle version 1.0') % urlutil.hidepassword(raw_url) |
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|
2111 ) |
46519
83ac7c91e172
bundle2: pass the operation source down to the changegroup
Raphaël Gomès <rgomes@octobus.net>
parents:
46495
diff
changeset
|
2112 ret = _processchangegroup(op, cg, tr, op.source, b'bundle2') |
23029
149fc8a44184
bundle2: client side support for a part to import external bundles
Mike Hommey <mh@glandium.org>
parents:
23011
diff
changeset
|
2113 if op.reply is not None: |
23139
e53f6b72a0e4
spelling: fixes from proofreading of spell checker issues
Mads Kiilerich <madski@unity3d.com>
parents:
23067
diff
changeset
|
2114 # This is definitely not the final form of this |
23029
149fc8a44184
bundle2: client side support for a part to import external bundles
Mike Hommey <mh@glandium.org>
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diff
changeset
|
2115 # return. But one need to start somewhere. |
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diff
changeset
|
2116 part = op.reply.newpart(b'reply:changegroup') |
33675
24b7c75c6441
bundle2: use bytestr() instead of str() to convert part id to bytes
Augie Fackler <augie@google.com>
parents:
33674
diff
changeset
|
2117 part.addparam( |
43077
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diff
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|
2118 b'in-reply-to', pycompat.bytestr(inpart.id), mandatory=False |
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|
2119 ) |
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diff
changeset
|
2120 part.addparam(b'return', b'%i' % ret, mandatory=False) |
23029
149fc8a44184
bundle2: client side support for a part to import external bundles
Mike Hommey <mh@glandium.org>
parents:
23011
diff
changeset
|
2121 try: |
149fc8a44184
bundle2: client side support for a part to import external bundles
Mike Hommey <mh@glandium.org>
parents:
23011
diff
changeset
|
2122 real_part.validate() |
26587
56b2bcea2529
error: get Abort from 'error' instead of 'util'
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
26565
diff
changeset
|
2123 except error.Abort as e: |
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|
2124 raise error.Abort( |
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diff
changeset
|
2125 _(b'bundle at %s is corrupted:\n%s') |
46907
ffd3e823a7e5
urlutil: extract `url` related code from `util` into the new module
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
46780
diff
changeset
|
2126 % (urlutil.hidepassword(raw_url), e.message) |
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changeset
|
2127 ) |
23029
149fc8a44184
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Mike Hommey <mh@glandium.org>
parents:
23011
diff
changeset
|
2128 assert not inpart.read() |
149fc8a44184
bundle2: client side support for a part to import external bundles
Mike Hommey <mh@glandium.org>
parents:
23011
diff
changeset
|
2129 |
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|
2130 |
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parents:
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diff
changeset
|
2131 @parthandler(b'reply:changegroup', (b'return', b'in-reply-to')) |
22548
8a1ae133770a
bundle2: rename functions that have the same name
Mike Hommey <mh@glandium.org>
parents:
22390
diff
changeset
|
2132 def handlereplychangegroup(op, inpart): |
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|
2133 ret = int(inpart.params[b'return']) |
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|
2134 replyto = int(inpart.params[b'in-reply-to']) |
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|
2135 op.records.add(b'changegroup', {b'return': ret}, replyto) |
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|
2136 |
687b865b95ad
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|
2137 |
687b865b95ad
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parents:
43076
diff
changeset
|
2138 @parthandler(b'check:bookmarks') |
35258
dbf868623daf
bookmark: add a 'check:bookmarks' bundle2 part
Boris Feld <boris.feld@octobus.net>
parents:
35120
diff
changeset
|
2139 def handlecheckbookmarks(op, inpart): |
dbf868623daf
bookmark: add a 'check:bookmarks' bundle2 part
Boris Feld <boris.feld@octobus.net>
parents:
35120
diff
changeset
|
2140 """check location of bookmarks |
dbf868623daf
bookmark: add a 'check:bookmarks' bundle2 part
Boris Feld <boris.feld@octobus.net>
parents:
35120
diff
changeset
|
2141 |
dbf868623daf
bookmark: add a 'check:bookmarks' bundle2 part
Boris Feld <boris.feld@octobus.net>
parents:
35120
diff
changeset
|
2142 This part is to be used to detect push race regarding bookmark, it |
dbf868623daf
bookmark: add a 'check:bookmarks' bundle2 part
Boris Feld <boris.feld@octobus.net>
parents:
35120
diff
changeset
|
2143 contains binary encoded (bookmark, node) tuple. If the local state does |
dbf868623daf
bookmark: add a 'check:bookmarks' bundle2 part
Boris Feld <boris.feld@octobus.net>
parents:
35120
diff
changeset
|
2144 not marks the one in the part, a PushRaced exception is raised |
dbf868623daf
bookmark: add a 'check:bookmarks' bundle2 part
Boris Feld <boris.feld@octobus.net>
parents:
35120
diff
changeset
|
2145 """ |
46780
6266d19556ad
node: introduce nodeconstants class
Joerg Sonnenberger <joerg@bec.de>
parents:
46713
diff
changeset
|
2146 bookdata = bookmarks.binarydecode(op.repo, inpart) |
35258
dbf868623daf
bookmark: add a 'check:bookmarks' bundle2 part
Boris Feld <boris.feld@octobus.net>
parents:
35120
diff
changeset
|
2147 |
43076
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|
2148 msgstandard = ( |
43077
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Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
2149 b'remote repository changed while pushing - please try again ' |
687b865b95ad
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Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
2150 b'(bookmark "%s" move from %s to %s)' |
43076
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parents:
42931
diff
changeset
|
2151 ) |
2372284d9457
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Augie Fackler <augie@google.com>
parents:
42931
diff
changeset
|
2152 msgmissing = ( |
43077
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Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
2153 b'remote repository changed while pushing - please try again ' |
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
2154 b'(bookmark "%s" is missing, expected %s)' |
43076
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Augie Fackler <augie@google.com>
parents:
42931
diff
changeset
|
2155 ) |
2372284d9457
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Augie Fackler <augie@google.com>
parents:
42931
diff
changeset
|
2156 msgexist = ( |
43077
687b865b95ad
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Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
2157 b'remote repository changed while pushing - please try again ' |
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
2158 b'(bookmark "%s" set on %s, expected missing)' |
43076
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Augie Fackler <augie@google.com>
parents:
42931
diff
changeset
|
2159 ) |
35258
dbf868623daf
bookmark: add a 'check:bookmarks' bundle2 part
Boris Feld <boris.feld@octobus.net>
parents:
35120
diff
changeset
|
2160 for book, node in bookdata: |
dbf868623daf
bookmark: add a 'check:bookmarks' bundle2 part
Boris Feld <boris.feld@octobus.net>
parents:
35120
diff
changeset
|
2161 currentnode = op.repo._bookmarks.get(book) |
dbf868623daf
bookmark: add a 'check:bookmarks' bundle2 part
Boris Feld <boris.feld@octobus.net>
parents:
35120
diff
changeset
|
2162 if currentnode != node: |
dbf868623daf
bookmark: add a 'check:bookmarks' bundle2 part
Boris Feld <boris.feld@octobus.net>
parents:
35120
diff
changeset
|
2163 if node is None: |
46113
59fa3890d40a
node: import symbols explicitly
Joerg Sonnenberger <joerg@bec.de>
parents:
45942
diff
changeset
|
2164 finalmsg = msgexist % (book, short(currentnode)) |
35258
dbf868623daf
bookmark: add a 'check:bookmarks' bundle2 part
Boris Feld <boris.feld@octobus.net>
parents:
35120
diff
changeset
|
2165 elif currentnode is None: |
46113
59fa3890d40a
node: import symbols explicitly
Joerg Sonnenberger <joerg@bec.de>
parents:
45942
diff
changeset
|
2166 finalmsg = msgmissing % (book, short(node)) |
35258
dbf868623daf
bookmark: add a 'check:bookmarks' bundle2 part
Boris Feld <boris.feld@octobus.net>
parents:
35120
diff
changeset
|
2167 else: |
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diff
changeset
|
2168 finalmsg = msgstandard % ( |
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Augie Fackler <augie@google.com>
parents:
42931
diff
changeset
|
2169 book, |
46113
59fa3890d40a
node: import symbols explicitly
Joerg Sonnenberger <joerg@bec.de>
parents:
45942
diff
changeset
|
2170 short(node), |
59fa3890d40a
node: import symbols explicitly
Joerg Sonnenberger <joerg@bec.de>
parents:
45942
diff
changeset
|
2171 short(currentnode), |
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Augie Fackler <augie@google.com>
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diff
changeset
|
2172 ) |
35258
dbf868623daf
bookmark: add a 'check:bookmarks' bundle2 part
Boris Feld <boris.feld@octobus.net>
parents:
35120
diff
changeset
|
2173 raise error.PushRaced(finalmsg) |
dbf868623daf
bookmark: add a 'check:bookmarks' bundle2 part
Boris Feld <boris.feld@octobus.net>
parents:
35120
diff
changeset
|
2174 |
43076
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changeset
|
2175 |
43077
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parents:
43076
diff
changeset
|
2176 @parthandler(b'check:heads') |
22548
8a1ae133770a
bundle2: rename functions that have the same name
Mike Hommey <mh@glandium.org>
parents:
22390
diff
changeset
|
2177 def handlecheckheads(op, inpart): |
21060
0bea9db7543b
bundle2: add a "check:heads" handler
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21024
diff
changeset
|
2178 """check that head of the repo did not change |
0bea9db7543b
bundle2: add a "check:heads" handler
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21024
diff
changeset
|
2179 |
0bea9db7543b
bundle2: add a "check:heads" handler
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21024
diff
changeset
|
2180 This is used to detect a push race when using unbundle. |
0bea9db7543b
bundle2: add a "check:heads" handler
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21024
diff
changeset
|
2181 This replaces the "heads" argument of unbundle.""" |
0bea9db7543b
bundle2: add a "check:heads" handler
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21024
diff
changeset
|
2182 h = inpart.read(20) |
0bea9db7543b
bundle2: add a "check:heads" handler
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21024
diff
changeset
|
2183 heads = [] |
0bea9db7543b
bundle2: add a "check:heads" handler
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21024
diff
changeset
|
2184 while len(h) == 20: |
0bea9db7543b
bundle2: add a "check:heads" handler
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21024
diff
changeset
|
2185 heads.append(h) |
0bea9db7543b
bundle2: add a "check:heads" handler
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21024
diff
changeset
|
2186 h = inpart.read(20) |
0bea9db7543b
bundle2: add a "check:heads" handler
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21024
diff
changeset
|
2187 assert not h |
26565
ee1bcb9aa6e4
bundle2: add op.gettransaction() to handlers that need the lock
Durham Goode <durham@fb.com>
parents:
26542
diff
changeset
|
2188 # Trigger a transaction so that we are guaranteed to have the lock now. |
43077
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43076
diff
changeset
|
2189 if op.ui.configbool(b'experimental', b'bundle2lazylocking'): |
26565
ee1bcb9aa6e4
bundle2: add op.gettransaction() to handlers that need the lock
Durham Goode <durham@fb.com>
parents:
26542
diff
changeset
|
2190 op.gettransaction() |
29294
077d0535f51f
bundle2: don't assume ordering of heads checked after push
Mads Kiilerich <madski@unity3d.com>
parents:
28883
diff
changeset
|
2191 if sorted(heads) != sorted(op.repo.heads()): |
43076
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42931
diff
changeset
|
2192 raise error.PushRaced( |
43117
8ff1ecfadcd1
cleanup: join string literals that are already on one line
Martin von Zweigbergk <martinvonz@google.com>
parents:
43115
diff
changeset
|
2193 b'remote repository changed while pushing - please try again' |
43076
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changeset
|
2194 ) |
2372284d9457
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Augie Fackler <augie@google.com>
parents:
42931
diff
changeset
|
2195 |
21130
1ff06386217f
bundle2: introduce `replycaps` part for on-demand reply
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21129
diff
changeset
|
2196 |
43077
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Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
2197 @parthandler(b'check:updated-heads') |
32709
16ada4cbb1a9
push: add a way to allow concurrent pushes on unrelated heads
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
32516
diff
changeset
|
2198 def handlecheckupdatedheads(op, inpart): |
16ada4cbb1a9
push: add a way to allow concurrent pushes on unrelated heads
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
32516
diff
changeset
|
2199 """check for race on the heads touched by a push |
16ada4cbb1a9
push: add a way to allow concurrent pushes on unrelated heads
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
32516
diff
changeset
|
2200 |
16ada4cbb1a9
push: add a way to allow concurrent pushes on unrelated heads
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
32516
diff
changeset
|
2201 This is similar to 'check:heads' but focus on the heads actually updated |
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2202 during the push. If other activities happen on unrelated heads, it is |
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2203 ignored. |
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2204 |
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2205 This allow server with high traffic to avoid push contention as long as |
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2206 unrelated parts of the graph are involved.""" |
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2207 h = inpart.read(20) |
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2208 heads = [] |
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2209 while len(h) == 20: |
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2210 heads.append(h) |
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2211 h = inpart.read(20) |
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2212 assert not h |
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2213 # trigger a transaction so that we are guaranteed to have the lock now. |
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2214 if op.ui.configbool(b'experimental', b'bundle2lazylocking'): |
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2215 op.gettransaction() |
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2216 |
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|
2217 currentheads = set() |
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parents:
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|
2218 for ls in op.repo.branchmap().iterheads(): |
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2219 currentheads.update(ls) |
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2220 |
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2221 for h in heads: |
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2222 if h not in currentheads: |
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2223 raise error.PushRaced( |
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2224 b'remote repository changed while pushing - ' |
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2225 b'please try again' |
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2226 ) |
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2227 |
32709
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2228 |
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2229 @parthandler(b'check:phases') |
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|
2230 def handlecheckphases(op, inpart): |
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2231 """check that phase boundaries of the repository did not change |
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2232 |
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|
2233 This is used to detect a push race. |
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2234 """ |
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|
2235 phasetonodes = phases.binarydecode(inpart) |
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|
2236 unfi = op.repo.unfiltered() |
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|
2237 cl = unfi.changelog |
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|
2238 phasecache = unfi._phasecache |
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2239 msg = ( |
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2240 b'remote repository changed while pushing - please try again ' |
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2241 b'(%s is %s expected %s)' |
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|
2242 ) |
45117
b1e51ef4e536
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Joerg Sonnenberger <joerg@bec.de>
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45106
diff
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|
2243 for expectedphase, nodes in pycompat.iteritems(phasetonodes): |
34820
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diff
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|
2244 for n in nodes: |
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|
2245 actualphase = phasecache.phase(unfi, cl.rev(n)) |
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2246 if actualphase != expectedphase: |
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2247 finalmsg = msg % ( |
46113
59fa3890d40a
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diff
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|
2248 short(n), |
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2249 phases.phasenames[actualphase], |
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2250 phases.phasenames[expectedphase], |
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2251 ) |
34820
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|
2252 raise error.PushRaced(finalmsg) |
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|
2253 |
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2254 |
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2255 @parthandler(b'output') |
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diff
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|
2256 def handleoutput(op, inpart): |
b7435117d951
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diff
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|
2257 """forward output captured on the server to the client""" |
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|
2258 for line in inpart.read().splitlines(): |
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2259 op.ui.status(_(b'remote: %s\n') % line) |
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2260 |
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2261 |
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|
2262 @parthandler(b'replycaps') |
21130
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parents:
21129
diff
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|
2263 def handlereplycaps(op, inpart): |
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21129
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|
2264 """Notify that a reply bundle should be created |
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diff
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|
2265 |
21138
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|
2266 The payload contains the capabilities information for the reply""" |
f469879d27ec
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diff
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|
2267 caps = decodecaps(inpart.read()) |
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|
2268 if op.reply is None: |
21135
98fbf3adfd83
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21134
diff
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|
2269 op.reply = bundle20(op.ui, caps) |
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|
2270 |
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|
2271 |
26829
58f1645f72c3
bundle2: attribute remote failures to remote (issue4788)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26802
diff
changeset
|
2272 class AbortFromPart(error.Abort): |
58f1645f72c3
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
26802
diff
changeset
|
2273 """Sub-class of Abort that denotes an error from a bundle2 part.""" |
58f1645f72c3
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|
2274 |
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|
2275 |
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|
2276 @parthandler(b'error:abort', (b'message', b'hint')) |
24741
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diff
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|
2277 def handleerrorabort(op, inpart): |
21177
952af771bc17
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|
2278 """Used to transmit abort error over the wire""" |
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|
2279 raise AbortFromPart( |
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|
2280 inpart.params[b'message'], hint=inpart.params.get(b'hint') |
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2281 ) |
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|
2282 |
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|
2283 |
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|
2284 @parthandler( |
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2285 b'error:pushkey', |
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2286 (b'namespace', b'key', b'new', b'old', b'ret', b'in-reply-to'), |
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2287 ) |
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|
2288 def handleerrorpushkey(op, inpart): |
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|
2289 """Used to transmit failure of a mandatory pushkey over the wire""" |
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2290 kwargs = {} |
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|
2291 for name in (b'namespace', b'key', b'new', b'old', b'ret'): |
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2292 value = inpart.params.get(name) |
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|
2293 if value is not None: |
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2294 kwargs[name] = value |
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2295 raise error.PushkeyFailed( |
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2296 inpart.params[b'in-reply-to'], **pycompat.strkwargs(kwargs) |
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2297 ) |
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|
2298 |
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|
2299 |
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2300 @parthandler(b'error:unsupportedcontent', (b'parttype', b'params')) |
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24733
diff
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|
2301 def handleerrorunsupportedcontent(op, inpart): |
21619
292331e906d7
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21618
diff
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|
2302 """Used to transmit unknown content error over the wire""" |
21622
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21620
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2303 kwargs = {} |
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2304 parttype = inpart.params.get(b'parttype') |
21627
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21626
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|
2305 if parttype is not None: |
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2306 kwargs[b'parttype'] = parttype |
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2307 params = inpart.params.get(b'params') |
21622
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|
2308 if params is not None: |
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2309 kwargs[b'params'] = params.split(b'\0') |
21622
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Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21620
diff
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|
2310 |
36427
247b473f408e
bundle2: **strkwargs love on various kwargs constructions
Augie Fackler <augie@google.com>
parents:
36273
diff
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|
2311 raise error.BundleUnknownFeatureError(**pycompat.strkwargs(kwargs)) |
21186
9f3652e851f8
bundle2: gracefully handle PushRaced error during unbundle
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
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diff
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|
2312 |
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diff
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|
2313 |
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parents:
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diff
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|
2314 @parthandler(b'error:pushraced', (b'message',)) |
24741
bb67e52362d6
bundle2: fix names for error part handler
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24733
diff
changeset
|
2315 def handleerrorpushraced(op, inpart): |
21186
9f3652e851f8
bundle2: gracefully handle PushRaced error during unbundle
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
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diff
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|
2316 """Used to transmit push race error over the wire""" |
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parents:
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diff
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|
2317 raise error.ResponseError(_(b'push failed:'), inpart.params[b'message']) |
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parents:
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|
2318 |
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|
2319 |
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parents:
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diff
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|
2320 @parthandler(b'listkeys', (b'namespace',)) |
21655
35095f332846
bundle: introduce a listkey handler
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21644
diff
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|
2321 def handlelistkeys(op, inpart): |
35095f332846
bundle: introduce a listkey handler
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
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diff
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|
2322 """retrieve pushkey namespace content stored in a bundle2""" |
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parents:
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diff
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|
2323 namespace = inpart.params[b'namespace'] |
21655
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bundle: introduce a listkey handler
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
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diff
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|
2324 r = pushkey.decodekeys(inpart.read()) |
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diff
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|
2325 op.records.add(b'listkeys', (namespace, r)) |
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parents:
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|
2326 |
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parents:
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diff
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|
2327 |
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parents:
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diff
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|
2328 @parthandler(b'pushkey', (b'namespace', b'key', b'old', b'new')) |
21660
e87d2a12d41b
bundle2: add ``pushkey`` support
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
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diff
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|
2329 def handlepushkey(op, inpart): |
e87d2a12d41b
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parents:
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|
2330 """process a pushkey request""" |
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bundle2: add ``pushkey`` support
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parents:
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diff
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|
2331 dec = pushkey.decode |
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diff
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|
2332 namespace = dec(inpart.params[b'namespace']) |
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|
2333 key = dec(inpart.params[b'key']) |
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parents:
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diff
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|
2334 old = dec(inpart.params[b'old']) |
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parents:
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diff
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|
2335 new = dec(inpart.params[b'new']) |
26565
ee1bcb9aa6e4
bundle2: add op.gettransaction() to handlers that need the lock
Durham Goode <durham@fb.com>
parents:
26542
diff
changeset
|
2336 # Grab the transaction to ensure that we have the lock before performing the |
ee1bcb9aa6e4
bundle2: add op.gettransaction() to handlers that need the lock
Durham Goode <durham@fb.com>
parents:
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diff
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|
2337 # pushkey. |
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diff
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|
2338 if op.ui.configbool(b'experimental', b'bundle2lazylocking'): |
26565
ee1bcb9aa6e4
bundle2: add op.gettransaction() to handlers that need the lock
Durham Goode <durham@fb.com>
parents:
26542
diff
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|
2339 op.gettransaction() |
21660
e87d2a12d41b
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Pierre-Yves David <pierre-yves.david@fb.com>
parents:
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diff
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|
2340 ret = op.repo.pushkey(namespace, key, old, new) |
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diff
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|
2341 record = {b'namespace': namespace, b'key': key, b'old': old, b'new': new} |
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diff
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|
2342 op.records.add(b'pushkey', record) |
21660
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bundle2: add ``pushkey`` support
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parents:
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diff
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|
2343 if op.reply is not None: |
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diff
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|
2344 rpart = op.reply.newpart(b'reply:pushkey') |
33675
24b7c75c6441
bundle2: use bytestr() instead of str() to convert part id to bytes
Augie Fackler <augie@google.com>
parents:
33674
diff
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|
2345 rpart.addparam( |
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diff
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|
2346 b'in-reply-to', pycompat.bytestr(inpart.id), mandatory=False |
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parents:
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diff
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|
2347 ) |
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parents:
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diff
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|
2348 rpart.addparam(b'return', b'%i' % ret, mandatory=False) |
25481
6de96cb31176
bundle2: abort when a mandatory pushkey part fails
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25401
diff
changeset
|
2349 if inpart.mandatory and not ret: |
25484
a5192774e925
bundle2: introduce a PushkeyFail error to abort unbundle on pushkey error
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25481
diff
changeset
|
2350 kwargs = {} |
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diff
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|
2351 for key in (b'namespace', b'key', b'new', b'old', b'ret'): |
25484
a5192774e925
bundle2: introduce a PushkeyFail error to abort unbundle on pushkey error
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25481
diff
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|
2352 if key in inpart.params: |
a5192774e925
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Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25481
diff
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|
2353 kwargs[key] = inpart.params[key] |
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|
2354 raise error.PushkeyFailed( |
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diff
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|
2355 partid=b'%d' % inpart.id, **pycompat.strkwargs(kwargs) |
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|
2356 ) |
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|
2357 |
21660
e87d2a12d41b
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diff
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|
2358 |
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diff
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|
2359 @parthandler(b'bookmarks') |
35260
af5507203d01
bookmark: introduce a 'bookmarks' part
Boris Feld <boris.feld@octobus.net>
parents:
35259
diff
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|
2360 def handlebookmark(op, inpart): |
af5507203d01
bookmark: introduce a 'bookmarks' part
Boris Feld <boris.feld@octobus.net>
parents:
35259
diff
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|
2361 """transmit bookmark information |
af5507203d01
bookmark: introduce a 'bookmarks' part
Boris Feld <boris.feld@octobus.net>
parents:
35259
diff
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|
2362 |
35266
496154e41968
bundle2: support a 'records' mode for the 'bookmarks' part
Boris Feld <boris.feld@octobus.net>
parents:
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diff
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|
2363 The part contains binary encoded bookmark information. |
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Boris Feld <boris.feld@octobus.net>
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|
2364 |
496154e41968
bundle2: support a 'records' mode for the 'bookmarks' part
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|
2365 The exact behavior of this part can be controlled by the 'bookmarks' mode |
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bundle2: support a 'records' mode for the 'bookmarks' part
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parents:
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diff
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|
2366 on the bundle operation. |
35260
af5507203d01
bookmark: introduce a 'bookmarks' part
Boris Feld <boris.feld@octobus.net>
parents:
35259
diff
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|
2367 |
35266
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Boris Feld <boris.feld@octobus.net>
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|
2368 When mode is 'apply' (the default) the bookmark information is applied as |
496154e41968
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Boris Feld <boris.feld@octobus.net>
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diff
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|
2369 is to the unbundling repository. Make sure a 'check:bookmarks' part is |
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Boris Feld <boris.feld@octobus.net>
parents:
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diff
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|
2370 issued earlier to check for push races in such update. This behavior is |
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Boris Feld <boris.feld@octobus.net>
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|
2371 suitable for pushing. |
496154e41968
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Boris Feld <boris.feld@octobus.net>
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|
2372 |
496154e41968
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diff
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|
2373 When mode is 'records', the information is recorded into the 'bookmarks' |
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diff
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|
2374 records of the bundle operation. This behavior is suitable for pulling. |
35260
af5507203d01
bookmark: introduce a 'bookmarks' part
Boris Feld <boris.feld@octobus.net>
parents:
35259
diff
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|
2375 """ |
46780
6266d19556ad
node: introduce nodeconstants class
Joerg Sonnenberger <joerg@bec.de>
parents:
46713
diff
changeset
|
2376 changes = bookmarks.binarydecode(op.repo, inpart) |
35261
f392066d127c
bookmark: add pushkey hook compatiblity to the bundle2 part
Boris Feld <boris.feld@octobus.net>
parents:
35260
diff
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|
2377 |
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|
2378 pushkeycompat = op.repo.ui.configbool( |
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|
2379 b'server', b'bookmarks-pushkey-compat' |
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|
2380 ) |
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|
2381 bookmarksmode = op.modes.get(b'bookmarks', b'apply') |
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|
2382 |
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|
2383 if bookmarksmode == b'apply': |
35266
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|
2384 tr = op.gettransaction() |
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|
2385 bookstore = op.repo._bookmarks |
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|
2386 if pushkeycompat: |
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|
2387 allhooks = [] |
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|
2388 for book, node in changes: |
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|
2389 hookargs = tr.hookargs.copy() |
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2390 hookargs[b'pushkeycompat'] = b'1' |
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2391 hookargs[b'namespace'] = b'bookmarks' |
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|
2392 hookargs[b'key'] = book |
46113
59fa3890d40a
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Joerg Sonnenberger <joerg@bec.de>
parents:
45942
diff
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|
2393 hookargs[b'old'] = hex(bookstore.get(book, b'')) |
59fa3890d40a
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Joerg Sonnenberger <joerg@bec.de>
parents:
45942
diff
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|
2394 hookargs[b'new'] = hex(node if node is not None else b'') |
35266
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|
2395 allhooks.append(hookargs) |
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|
2396 |
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|
2397 for hookargs in allhooks: |
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|
2398 op.repo.hook( |
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|
2399 b'prepushkey', throw=True, **pycompat.strkwargs(hookargs) |
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|
2400 ) |
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|
2401 |
44372
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parents:
44256
diff
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|
2402 for book, node in changes: |
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diff
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|
2403 if bookmarks.isdivergent(book): |
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|
2404 msg = _(b'cannot accept divergent bookmark %s!') % book |
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|
2405 raise error.Abort(msg) |
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|
2406 |
35266
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|
2407 bookstore.applychanges(op.repo, op.gettransaction(), changes) |
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2408 |
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|
2409 if pushkeycompat: |
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|
2410 |
43778
888bd39ed555
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Kyle Lippincott <spectral@google.com>
parents:
43506
diff
changeset
|
2411 def runhook(unused_success): |
35266
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|
2412 for hookargs in allhooks: |
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|
2413 op.repo.hook(b'pushkey', **pycompat.strkwargs(hookargs)) |
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2414 |
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|
2415 op.repo._afterlock(runhook) |
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changeset
|
2416 |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
2417 elif bookmarksmode == b'records': |
35261
f392066d127c
bookmark: add pushkey hook compatiblity to the bundle2 part
Boris Feld <boris.feld@octobus.net>
parents:
35260
diff
changeset
|
2418 for book, node in changes: |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
2419 record = {b'bookmark': book, b'node': node} |
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
2420 op.records.add(b'bookmarks', record) |
35266
496154e41968
bundle2: support a 'records' mode for the 'bookmarks' part
Boris Feld <boris.feld@octobus.net>
parents:
35265
diff
changeset
|
2421 else: |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
2422 raise error.ProgrammingError( |
48423
fff5942d445f
typo: s/unkown/unknown across the codebase
Raphaël Gomès <rgomes@octobus.net>
parents:
47226
diff
changeset
|
2423 b'unknown bookmark mode: %s' % bookmarksmode |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
2424 ) |
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
2425 |
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
2426 |
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
2427 @parthandler(b'phase-heads') |
33031
e8c8d81eb864
bundle: add config option to include phases
Martin von Zweigbergk <martinvonz@google.com>
parents:
33030
diff
changeset
|
2428 def handlephases(op, inpart): |
e8c8d81eb864
bundle: add config option to include phases
Martin von Zweigbergk <martinvonz@google.com>
parents:
33030
diff
changeset
|
2429 """apply phases from bundle part to repo""" |
34320
12c42bcd4133
phases: move the binary decoding function in the phases module
Boris Feld <boris.feld@octobus.net>
parents:
34319
diff
changeset
|
2430 headsbyphase = phases.binarydecode(inpart) |
34321
4ef472b975ff
bundle2: only grab a transaction when 'phase-heads' affect the repository
Boris Feld <boris.feld@octobus.net>
parents:
34320
diff
changeset
|
2431 phases.updatephases(op.repo.unfiltered(), op.gettransaction, headsbyphase) |
33031
e8c8d81eb864
bundle: add config option to include phases
Martin von Zweigbergk <martinvonz@google.com>
parents:
33030
diff
changeset
|
2432 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42931
diff
changeset
|
2433 |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
2434 @parthandler(b'reply:pushkey', (b'return', b'in-reply-to')) |
21660
e87d2a12d41b
bundle2: add ``pushkey`` support
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21655
diff
changeset
|
2435 def handlepushkeyreply(op, inpart): |
e87d2a12d41b
bundle2: add ``pushkey`` support
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21655
diff
changeset
|
2436 """retrieve the result of a pushkey request""" |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
2437 ret = int(inpart.params[b'return']) |
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
2438 partid = int(inpart.params[b'in-reply-to']) |
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
2439 op.records.add(b'pushkey', {b'return': ret}, partid) |
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
2440 |
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
2441 |
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
2442 @parthandler(b'obsmarkers') |
22336
60786c8a2f70
bundle2: add an obsmarkers part handler
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21900
diff
changeset
|
2443 def handleobsmarker(op, inpart): |
60786c8a2f70
bundle2: add an obsmarkers part handler
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21900
diff
changeset
|
2444 """add a stream of obsmarkers to the repo""" |
60786c8a2f70
bundle2: add an obsmarkers part handler
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21900
diff
changeset
|
2445 tr = op.gettransaction() |
24733
c00e4338fa4b
obsolete: experimental flag to get debug about obsmarkers exchange
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24686
diff
changeset
|
2446 markerdata = inpart.read() |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
2447 if op.ui.config(b'experimental', b'obsmarkers-exchange-debug'): |
43080
86e4daa2d54c
cleanup: mark some ui.(status|note|warn|write) calls as not needing i18n
Augie Fackler <augie@google.com>
parents:
43077
diff
changeset
|
2448 op.ui.writenoi18n( |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
2449 b'obsmarker-exchange: %i bytes received\n' % len(markerdata) |
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
2450 ) |
26685
ea390d889d3a
bundle2: gracefully skip 'obsmarkers' part if evolution is disabled
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
26587
diff
changeset
|
2451 # The mergemarkers call will crash if marker creation is not enabled. |
ea390d889d3a
bundle2: gracefully skip 'obsmarkers' part if evolution is disabled
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
26587
diff
changeset
|
2452 # we want to avoid this if the part is advisory. |
ea390d889d3a
bundle2: gracefully skip 'obsmarkers' part if evolution is disabled
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
26587
diff
changeset
|
2453 if not inpart.mandatory and op.repo.obsstore.readonly: |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
2454 op.repo.ui.debug( |
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
2455 b'ignoring obsolescence markers, feature not enabled\n' |
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
2456 ) |
26685
ea390d889d3a
bundle2: gracefully skip 'obsmarkers' part if evolution is disabled
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
26587
diff
changeset
|
2457 return |
24733
c00e4338fa4b
obsolete: experimental flag to get debug about obsmarkers exchange
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24686
diff
changeset
|
2458 new = op.repo.obsstore.mergemarkers(tr, markerdata) |
32326
99515353c72a
obsolete: invalidate "volatile" set cache after merging marker
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
32024
diff
changeset
|
2459 op.repo.invalidatevolatilesets() |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
2460 op.records.add(b'obsmarkers', {b'new': new}) |
22340
394a17de6a2d
obsmarker: produce a reply part for markers received through bundle2
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22338
diff
changeset
|
2461 if op.reply is not None: |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
2462 rpart = op.reply.newpart(b'reply:obsmarkers') |
33675
24b7c75c6441
bundle2: use bytestr() instead of str() to convert part id to bytes
Augie Fackler <augie@google.com>
parents:
33674
diff
changeset
|
2463 rpart.addparam( |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
2464 b'in-reply-to', pycompat.bytestr(inpart.id), mandatory=False |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42931
diff
changeset
|
2465 ) |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
2466 rpart.addparam(b'new', b'%i' % new, mandatory=False) |
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
2467 |
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
2468 |
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
2469 @parthandler(b'reply:obsmarkers', (b'new', b'in-reply-to')) |
25506
86472038dfd2
bundle2: rename duplicate handlepushkeyreply to handleobsmarkerreply
Martin von Zweigbergk <martinvonz@google.com>
parents:
25493
diff
changeset
|
2470 def handleobsmarkerreply(op, inpart): |
22340
394a17de6a2d
obsmarker: produce a reply part for markers received through bundle2
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22338
diff
changeset
|
2471 """retrieve the result of a pushkey request""" |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
2472 ret = int(inpart.params[b'new']) |
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
2473 partid = int(inpart.params[b'in-reply-to']) |
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
2474 op.records.add(b'obsmarkers', {b'new': ret}, partid) |
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
2475 |
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
2476 |
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
2477 @parthandler(b'hgtagsfnodes') |
25401
d29201352af7
bundle2: part handler for processing .hgtags fnodes mappings
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25336
diff
changeset
|
2478 def handlehgtagsfnodes(op, inpart): |
d29201352af7
bundle2: part handler for processing .hgtags fnodes mappings
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25336
diff
changeset
|
2479 """Applies .hgtags fnodes cache entries to the local repo. |
d29201352af7
bundle2: part handler for processing .hgtags fnodes mappings
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25336
diff
changeset
|
2480 |
d29201352af7
bundle2: part handler for processing .hgtags fnodes mappings
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25336
diff
changeset
|
2481 Payload is pairs of 20 byte changeset nodes and filenodes. |
d29201352af7
bundle2: part handler for processing .hgtags fnodes mappings
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25336
diff
changeset
|
2482 """ |
26565
ee1bcb9aa6e4
bundle2: add op.gettransaction() to handlers that need the lock
Durham Goode <durham@fb.com>
parents:
26542
diff
changeset
|
2483 # Grab the transaction so we ensure that we have the lock at this point. |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
2484 if op.ui.configbool(b'experimental', b'bundle2lazylocking'): |
26565
ee1bcb9aa6e4
bundle2: add op.gettransaction() to handlers that need the lock
Durham Goode <durham@fb.com>
parents:
26542
diff
changeset
|
2485 op.gettransaction() |
25401
d29201352af7
bundle2: part handler for processing .hgtags fnodes mappings
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25336
diff
changeset
|
2486 cache = tags.hgtagsfnodescache(op.repo.unfiltered()) |
d29201352af7
bundle2: part handler for processing .hgtags fnodes mappings
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25336
diff
changeset
|
2487 |
d29201352af7
bundle2: part handler for processing .hgtags fnodes mappings
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25336
diff
changeset
|
2488 count = 0 |
d29201352af7
bundle2: part handler for processing .hgtags fnodes mappings
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25336
diff
changeset
|
2489 while True: |
d29201352af7
bundle2: part handler for processing .hgtags fnodes mappings
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25336
diff
changeset
|
2490 node = inpart.read(20) |
d29201352af7
bundle2: part handler for processing .hgtags fnodes mappings
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25336
diff
changeset
|
2491 fnode = inpart.read(20) |
d29201352af7
bundle2: part handler for processing .hgtags fnodes mappings
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25336
diff
changeset
|
2492 if len(node) < 20 or len(fnode) < 20: |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
2493 op.ui.debug(b'ignoring incomplete received .hgtags fnodes data\n') |
25401
d29201352af7
bundle2: part handler for processing .hgtags fnodes mappings
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25336
diff
changeset
|
2494 break |
d29201352af7
bundle2: part handler for processing .hgtags fnodes mappings
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25336
diff
changeset
|
2495 cache.setfnode(node, fnode) |
d29201352af7
bundle2: part handler for processing .hgtags fnodes mappings
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25336
diff
changeset
|
2496 count += 1 |
d29201352af7
bundle2: part handler for processing .hgtags fnodes mappings
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25336
diff
changeset
|
2497 |
d29201352af7
bundle2: part handler for processing .hgtags fnodes mappings
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25336
diff
changeset
|
2498 cache.write() |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
2499 op.ui.debug(b'applied %i hgtags fnodes cache entries\n' % count) |
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
2500 |
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
2501 |
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
2502 rbcstruct = struct.Struct(b'>III') |
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
2503 |
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
2504 |
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
2505 @parthandler(b'cache:rev-branch-cache') |
36963
9988fc10f49e
revbranchcache: add a bundle2 handler for a rbc part
Boris Feld <boris.feld@octobus.net>
parents:
36428
diff
changeset
|
2506 def handlerbc(op, inpart): |
46372
3e91d9978bec
branchmap: update rev-branch-cache incrementally
Joerg Sonnenberger <joerg@bec.de>
parents:
46166
diff
changeset
|
2507 """Legacy part, ignored for compatibility with bundles from or |
3e91d9978bec
branchmap: update rev-branch-cache incrementally
Joerg Sonnenberger <joerg@bec.de>
parents:
46166
diff
changeset
|
2508 for Mercurial before 5.7. Newer Mercurial computes the cache |
3e91d9978bec
branchmap: update rev-branch-cache incrementally
Joerg Sonnenberger <joerg@bec.de>
parents:
46166
diff
changeset
|
2509 efficiently enough during unbundling that the additional transfer |
3e91d9978bec
branchmap: update rev-branch-cache incrementally
Joerg Sonnenberger <joerg@bec.de>
parents:
46166
diff
changeset
|
2510 is unnecessary.""" |
36963
9988fc10f49e
revbranchcache: add a bundle2 handler for a rbc part
Boris Feld <boris.feld@octobus.net>
parents:
36428
diff
changeset
|
2511 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42931
diff
changeset
|
2512 |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
2513 @parthandler(b'pushvars') |
33693
db3dc11356ed
pushvars: move fb extension pushvars to core
Pulkit Goyal <7895pulkit@gmail.com>
parents:
33682
diff
changeset
|
2514 def bundle2getvars(op, part): |
db3dc11356ed
pushvars: move fb extension pushvars to core
Pulkit Goyal <7895pulkit@gmail.com>
parents:
33682
diff
changeset
|
2515 '''unbundle a bundle2 containing shellvars on the server''' |
db3dc11356ed
pushvars: move fb extension pushvars to core
Pulkit Goyal <7895pulkit@gmail.com>
parents:
33682
diff
changeset
|
2516 # An option to disable unbundling on server-side for security reasons |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
2517 if op.ui.configbool(b'push', b'pushvars.server'): |
33693
db3dc11356ed
pushvars: move fb extension pushvars to core
Pulkit Goyal <7895pulkit@gmail.com>
parents:
33682
diff
changeset
|
2518 hookargs = {} |
db3dc11356ed
pushvars: move fb extension pushvars to core
Pulkit Goyal <7895pulkit@gmail.com>
parents:
33682
diff
changeset
|
2519 for key, value in part.advisoryparams: |
db3dc11356ed
pushvars: move fb extension pushvars to core
Pulkit Goyal <7895pulkit@gmail.com>
parents:
33682
diff
changeset
|
2520 key = key.upper() |
db3dc11356ed
pushvars: move fb extension pushvars to core
Pulkit Goyal <7895pulkit@gmail.com>
parents:
33682
diff
changeset
|
2521 # We want pushed variables to have USERVAR_ prepended so we know |
db3dc11356ed
pushvars: move fb extension pushvars to core
Pulkit Goyal <7895pulkit@gmail.com>
parents:
33682
diff
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|
2522 # they came from the --pushvar flag. |
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parents:
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diff
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|
2523 key = b"USERVAR_" + key |
33693
db3dc11356ed
pushvars: move fb extension pushvars to core
Pulkit Goyal <7895pulkit@gmail.com>
parents:
33682
diff
changeset
|
2524 hookargs[key] = value |
db3dc11356ed
pushvars: move fb extension pushvars to core
Pulkit Goyal <7895pulkit@gmail.com>
parents:
33682
diff
changeset
|
2525 op.addhookargs(hookargs) |
35758
b996ddf5963d
bundle2: add a 'stream' part handler for stream cloning
Boris Feld <boris.feld@octobus.net>
parents:
35655
diff
changeset
|
2526 |
43076
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|
2527 |
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parents:
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diff
changeset
|
2528 @parthandler(b'stream2', (b'requirements', b'filecount', b'bytecount')) |
35788
b116a66bcc44
bundle2: move version of stream clone into part name
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35787
diff
changeset
|
2529 def handlestreamv2bundle(op, part): |
35758
b996ddf5963d
bundle2: add a 'stream' part handler for stream cloning
Boris Feld <boris.feld@octobus.net>
parents:
35655
diff
changeset
|
2530 |
43077
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parents:
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diff
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|
2531 requirements = urlreq.unquote(part.params[b'requirements']).split(b',') |
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parents:
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diff
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|
2532 filecount = int(part.params[b'filecount']) |
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parents:
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diff
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|
2533 bytecount = int(part.params[b'bytecount']) |
35758
b996ddf5963d
bundle2: add a 'stream' part handler for stream cloning
Boris Feld <boris.feld@octobus.net>
parents:
35655
diff
changeset
|
2534 |
b996ddf5963d
bundle2: add a 'stream' part handler for stream cloning
Boris Feld <boris.feld@octobus.net>
parents:
35655
diff
changeset
|
2535 repo = op.repo |
b996ddf5963d
bundle2: add a 'stream' part handler for stream cloning
Boris Feld <boris.feld@octobus.net>
parents:
35655
diff
changeset
|
2536 if len(repo): |
43077
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parents:
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diff
changeset
|
2537 msg = _(b'cannot apply stream clone to non empty repository') |
35758
b996ddf5963d
bundle2: add a 'stream' part handler for stream cloning
Boris Feld <boris.feld@octobus.net>
parents:
35655
diff
changeset
|
2538 raise error.Abort(msg) |
b996ddf5963d
bundle2: add a 'stream' part handler for stream cloning
Boris Feld <boris.feld@octobus.net>
parents:
35655
diff
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|
2539 |
43077
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parents:
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|
2540 repo.ui.debug(b'applying stream bundle\n') |
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|
2541 streamclone.applybundlev2(repo, part, filecount, bytecount, requirements) |
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2542 |
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2543 |
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|
2544 def widen_bundle( |
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|
2545 bundler, repo, oldmatcher, newmatcher, common, known, cgversion, ellipses |
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|
2546 ): |
40072
1ea80ac13f19
narrow: move the code to generate a widening bundle2 to core
Pulkit Goyal <pulkit@yandex-team.ru>
parents:
39850
diff
changeset
|
2547 """generates bundle2 for widening a narrow clone |
1ea80ac13f19
narrow: move the code to generate a widening bundle2 to core
Pulkit Goyal <pulkit@yandex-team.ru>
parents:
39850
diff
changeset
|
2548 |
42417
a97b12f726e4
narrow: pass the bundle to bundle2.widen_bundle() instead of generating there
Pulkit Goyal <7895pulkit@gmail.com>
parents:
42143
diff
changeset
|
2549 bundler is the bundle to which data should be added |
40072
1ea80ac13f19
narrow: move the code to generate a widening bundle2 to core
Pulkit Goyal <pulkit@yandex-team.ru>
parents:
39850
diff
changeset
|
2550 repo is the localrepository instance |
40344
2c5835b4246b
narrow: when widening, don't include manifests the client already has
Martin von Zweigbergk <martinvonz@google.com>
parents:
40338
diff
changeset
|
2551 oldmatcher matches what the client already has |
2c5835b4246b
narrow: when widening, don't include manifests the client already has
Martin von Zweigbergk <martinvonz@google.com>
parents:
40338
diff
changeset
|
2552 newmatcher matches what the client needs (including what it already has) |
40072
1ea80ac13f19
narrow: move the code to generate a widening bundle2 to core
Pulkit Goyal <pulkit@yandex-team.ru>
parents:
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diff
changeset
|
2553 common is set of common heads between server and client |
1ea80ac13f19
narrow: move the code to generate a widening bundle2 to core
Pulkit Goyal <pulkit@yandex-team.ru>
parents:
39850
diff
changeset
|
2554 known is a set of revs known on the client side (used in ellipses) |
1ea80ac13f19
narrow: move the code to generate a widening bundle2 to core
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parents:
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diff
changeset
|
2555 cgversion is the changegroup version to send |
1ea80ac13f19
narrow: move the code to generate a widening bundle2 to core
Pulkit Goyal <pulkit@yandex-team.ru>
parents:
39850
diff
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|
2556 ellipses is boolean value telling whether to send ellipses data or not |
1ea80ac13f19
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Pulkit Goyal <pulkit@yandex-team.ru>
parents:
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diff
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|
2557 |
1ea80ac13f19
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parents:
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diff
changeset
|
2558 returns bundle2 of the data required for extending |
1ea80ac13f19
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Pulkit Goyal <pulkit@yandex-team.ru>
parents:
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diff
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|
2559 """ |
1ea80ac13f19
narrow: move the code to generate a widening bundle2 to core
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diff
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|
2560 commonnodes = set() |
1ea80ac13f19
narrow: move the code to generate a widening bundle2 to core
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parents:
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diff
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|
2561 cl = repo.changelog |
43077
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|
2562 for r in repo.revs(b"::%ln", common): |
40072
1ea80ac13f19
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Pulkit Goyal <pulkit@yandex-team.ru>
parents:
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diff
changeset
|
2563 commonnodes.add(cl.node(r)) |
1ea80ac13f19
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|
2564 if commonnodes: |
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|
2565 packer = changegroup.getbundler( |
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diff
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|
2566 cgversion, |
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|
2567 repo, |
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|
2568 oldmatcher=oldmatcher, |
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|
2569 matcher=newmatcher, |
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|
2570 fullnodes=commonnodes, |
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|
2571 ) |
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|
2572 cgdata = packer.generate( |
47012
d55b71393907
node: replace nullid and friends with nodeconstants class
Joerg Sonnenberger <joerg@bec.de>
parents:
46907
diff
changeset
|
2573 {repo.nullid}, |
43076
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|
2574 list(commonnodes), |
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|
2575 False, |
43077
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|
2576 b'narrow_widen', |
43076
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changeset
|
2577 changelog=False, |
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|
2578 ) |
40072
1ea80ac13f19
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Pulkit Goyal <pulkit@yandex-team.ru>
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|
2579 |
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|
2580 part = bundler.newpart(b'changegroup', data=cgdata) |
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changeset
|
2581 part.addparam(b'version', cgversion) |
45552
10284ce3d5ed
scmutil: introduce function to check whether repo uses treemanifest or not
Pulkit Goyal <7895pulkit@gmail.com>
parents:
45372
diff
changeset
|
2582 if scmutil.istreemanifest(repo): |
43077
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43076
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|
2583 part.addparam(b'treemanifest', b'1') |
47226
19d4802cb304
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47128
diff
changeset
|
2584 if repository.REPO_FEATURE_SIDE_DATA in repo.features: |
19d4802cb304
sidedata: add a 'side-data' repository feature and use it
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47128
diff
changeset
|
2585 part.addparam(b'exp-sidedata', b'1') |
19d4802cb304
sidedata: add a 'side-data' repository feature and use it
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47128
diff
changeset
|
2586 wanted = format_remote_wanted_sidedata(repo) |
19d4802cb304
sidedata: add a 'side-data' repository feature and use it
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
47128
diff
changeset
|
2587 part.addparam(b'exp-wanted-sidedata', wanted) |
40072
1ea80ac13f19
narrow: move the code to generate a widening bundle2 to core
Pulkit Goyal <pulkit@yandex-team.ru>
parents:
39850
diff
changeset
|
2588 |
1ea80ac13f19
narrow: move the code to generate a widening bundle2 to core
Pulkit Goyal <pulkit@yandex-team.ru>
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39850
diff
changeset
|
2589 return bundler |