Mercurial > hg
annotate mercurial/bundle2.py @ 27367:8833daddfc3f
test: rename 'check-code' own test to 'test-contrib-check-code.t'
This test (making sure the 'check-code' script run as intended) have been
confused with the test making that the mercurial code base comply with our
coding still by multiple generations of contributors.
We are moving it out of the way so that all tests starting with
'test-check' are now doing compliance testing.
author | Pierre-Yves David <pierre-yves.david@fb.com> |
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date | Sat, 05 Dec 2015 22:47:26 -0800 |
parents | 58f1645f72c3 |
children | 5c0fd878779c |
rev | line source |
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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 |
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149 |
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150 import errno |
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151 import re |
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152 import string |
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153 import struct |
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154 import sys |
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155 import urllib |
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156 |
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157 from .i18n import _ |
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158 from . import ( |
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159 changegroup, |
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160 error, |
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161 obsolete, |
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162 pushkey, |
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163 tags, |
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164 url, |
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165 util, |
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166 ) |
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167 |
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168 _pack = struct.pack |
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169 _unpack = struct.unpack |
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170 |
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171 _fstreamparamsize = '>i' |
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172 _fpartheadersize = '>i' |
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173 _fparttypesize = '>B' |
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174 _fpartid = '>I' |
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175 _fpayloadsize = '>i' |
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176 _fpartparamcount = '>BB' |
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177 |
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178 preferedchunksize = 4096 |
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179 |
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180 _parttypeforbidden = re.compile('[^a-zA-Z0-9_:-]') |
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181 |
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182 def outdebug(ui, message): |
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183 """debug regarding output stream (bundling)""" |
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184 if ui.configbool('devel', 'bundle2.debug', False): |
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185 ui.debug('bundle2-output: %s\n' % message) |
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186 |
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187 def indebug(ui, message): |
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188 """debug on input stream (unbundling)""" |
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189 if ui.configbool('devel', 'bundle2.debug', False): |
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190 ui.debug('bundle2-input: %s\n' % message) |
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191 |
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192 def validateparttype(parttype): |
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193 """raise ValueError if a parttype contains invalid character""" |
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194 if _parttypeforbidden.search(parttype): |
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195 raise ValueError(parttype) |
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196 |
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197 def _makefpartparamsizes(nbparams): |
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198 """return a struct format to read part parameter sizes |
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199 |
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200 The number parameters is variable so we need to build that format |
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201 dynamically. |
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202 """ |
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203 return '>'+('BB'*nbparams) |
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204 |
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205 parthandlermapping = {} |
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206 |
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207 def parthandler(parttype, params=()): |
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208 """decorator that register a function as a bundle2 part handler |
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209 |
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210 eg:: |
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211 |
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212 @parthandler('myparttype', ('mandatory', 'param', 'handled')) |
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213 def myparttypehandler(...): |
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214 '''process a part of type "my part".''' |
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215 ... |
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216 """ |
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217 validateparttype(parttype) |
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218 def _decorator(func): |
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219 lparttype = parttype.lower() # enforce lower case matching. |
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220 assert lparttype not in parthandlermapping |
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221 parthandlermapping[lparttype] = func |
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222 func.params = frozenset(params) |
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223 return func |
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224 return _decorator |
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225 |
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226 class unbundlerecords(object): |
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227 """keep record of what happens during and unbundle |
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228 |
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229 New records are added using `records.add('cat', obj)`. Where 'cat' is a |
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230 category of record and obj is an arbitrary object. |
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231 |
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232 `records['cat']` will return all entries of this category 'cat'. |
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233 |
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234 Iterating on the object itself will yield `('category', obj)` tuples |
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235 for all entries. |
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236 |
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237 All iterations happens in chronological order. |
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238 """ |
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239 |
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240 def __init__(self): |
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241 self._categories = {} |
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242 self._sequences = [] |
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243 self._replies = {} |
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244 |
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245 def add(self, category, entry, inreplyto=None): |
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246 """add a new record of a given category. |
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247 |
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248 The entry can then be retrieved in the list returned by |
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249 self['category'].""" |
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250 self._categories.setdefault(category, []).append(entry) |
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251 self._sequences.append((category, entry)) |
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252 if inreplyto is not None: |
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253 self.getreplies(inreplyto).add(category, entry) |
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254 |
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255 def getreplies(self, partid): |
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256 """get the records that are replies to a specific part""" |
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257 return self._replies.setdefault(partid, unbundlerecords()) |
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258 |
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259 def __getitem__(self, cat): |
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260 return tuple(self._categories.get(cat, ())) |
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261 |
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262 def __iter__(self): |
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263 return iter(self._sequences) |
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264 |
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265 def __len__(self): |
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266 return len(self._sequences) |
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267 |
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268 def __nonzero__(self): |
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269 return bool(self._sequences) |
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270 |
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271 class bundleoperation(object): |
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272 """an object that represents a single bundling process |
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273 |
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274 Its purpose is to carry unbundle-related objects and states. |
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275 |
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276 A new object should be created at the beginning of each bundle processing. |
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277 The object is to be returned by the processing function. |
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278 |
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279 The object has very little content now it will ultimately contain: |
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280 * an access to the repo the bundle is applied to, |
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281 * a ui object, |
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282 * a way to retrieve a transaction to add changes to the repo, |
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283 * a way to record the result of processing each part, |
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284 * a way to construct a bundle response when applicable. |
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285 """ |
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286 |
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287 def __init__(self, repo, transactiongetter, captureoutput=True): |
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288 self.repo = repo |
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289 self.ui = repo.ui |
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290 self.records = unbundlerecords() |
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291 self.gettransaction = transactiongetter |
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292 self.reply = None |
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293 self.captureoutput = captureoutput |
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294 |
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295 class TransactionUnavailable(RuntimeError): |
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296 pass |
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297 |
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298 def _notransaction(): |
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299 """default method to get a transaction while processing a bundle |
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300 |
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301 Raise an exception to highlight the fact that no transaction was expected |
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302 to be created""" |
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303 raise TransactionUnavailable() |
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304 |
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305 def applybundle(repo, unbundler, tr, source=None, url=None, op=None): |
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306 # transform me into unbundler.apply() as soon as the freeze is lifted |
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307 tr.hookargs['bundle2'] = '1' |
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308 if source is not None and 'source' not in tr.hookargs: |
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309 tr.hookargs['source'] = source |
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310 if url is not None and 'url' not in tr.hookargs: |
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311 tr.hookargs['url'] = url |
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312 return processbundle(repo, unbundler, lambda: tr, op=op) |
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313 |
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314 def processbundle(repo, unbundler, transactiongetter=None, op=None): |
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315 """This function process a bundle, apply effect to/from a repo |
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316 |
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317 It iterates over each part then searches for and uses the proper handling |
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318 code to process the part. Parts are processed in order. |
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319 |
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320 This is very early version of this function that will be strongly reworked |
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321 before final usage. |
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322 |
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323 Unknown Mandatory part will abort the process. |
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324 |
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325 It is temporarily possible to provide a prebuilt bundleoperation to the |
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326 function. This is used to ensure output is properly propagated in case of |
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327 an error during the unbundling. This output capturing part will likely be |
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328 reworked and this ability will probably go away in the process. |
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329 """ |
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330 if op is None: |
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331 if transactiongetter is None: |
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332 transactiongetter = _notransaction |
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333 op = bundleoperation(repo, transactiongetter) |
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334 # todo: |
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335 # - replace this is a init function soon. |
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336 # - exception catching |
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337 unbundler.params |
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338 if repo.ui.debugflag: |
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339 msg = ['bundle2-input-bundle:'] |
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340 if unbundler.params: |
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341 msg.append(' %i params') |
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342 if op.gettransaction is None: |
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343 msg.append(' no-transaction') |
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344 else: |
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345 msg.append(' with-transaction') |
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346 msg.append('\n') |
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347 repo.ui.debug(''.join(msg)) |
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348 iterparts = enumerate(unbundler.iterparts()) |
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349 part = None |
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350 nbpart = 0 |
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351 try: |
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352 for nbpart, part in iterparts: |
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353 _processpart(op, part) |
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354 except BaseException as exc: |
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355 for nbpart, part in iterparts: |
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356 # consume the bundle content |
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357 part.seek(0, 2) |
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358 # Small hack to let caller code distinguish exceptions from bundle2 |
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359 # processing from processing the old format. This is mostly |
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360 # needed to handle different return codes to unbundle according to the |
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361 # type of bundle. We should probably clean up or drop this return code |
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362 # craziness in a future version. |
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363 exc.duringunbundle2 = True |
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364 salvaged = [] |
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365 replycaps = None |
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366 if op.reply is not None: |
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367 salvaged = op.reply.salvageoutput() |
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368 replycaps = op.reply.capabilities |
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369 exc._replycaps = replycaps |
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370 exc._bundle2salvagedoutput = salvaged |
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371 raise |
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372 finally: |
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373 repo.ui.debug('bundle2-input-bundle: %i parts total\n' % nbpart) |
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374 |
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375 return op |
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376 |
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377 def _processpart(op, part): |
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378 """process a single part from a bundle |
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379 |
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380 The part is guaranteed to have been fully consumed when the function exits |
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381 (even if an exception is raised).""" |
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382 status = 'unknown' # used by debug output |
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383 try: |
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384 try: |
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385 handler = parthandlermapping.get(part.type) |
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386 if handler is None: |
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387 status = 'unsupported-type' |
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388 raise error.BundleUnknownFeatureError(parttype=part.type) |
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389 indebug(op.ui, 'found a handler for part %r' % part.type) |
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390 unknownparams = part.mandatorykeys - handler.params |
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391 if unknownparams: |
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392 unknownparams = list(unknownparams) |
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393 unknownparams.sort() |
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394 status = 'unsupported-params (%s)' % unknownparams |
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395 raise error.BundleUnknownFeatureError(parttype=part.type, |
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396 params=unknownparams) |
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397 status = 'supported' |
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398 except error.BundleUnknownFeatureError as exc: |
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399 if part.mandatory: # mandatory parts |
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400 raise |
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401 indebug(op.ui, 'ignoring unsupported advisory part %s' % exc) |
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402 return # skip to part processing |
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403 finally: |
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404 if op.ui.debugflag: |
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405 msg = ['bundle2-input-part: "%s"' % part.type] |
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406 if not part.mandatory: |
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407 msg.append(' (advisory)') |
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408 nbmp = len(part.mandatorykeys) |
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409 nbap = len(part.params) - nbmp |
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410 if nbmp or nbap: |
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411 msg.append(' (params:') |
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412 if nbmp: |
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413 msg.append(' %i mandatory' % nbmp) |
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414 if nbap: |
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415 msg.append(' %i advisory' % nbmp) |
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416 msg.append(')') |
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417 msg.append(' %s\n' % status) |
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418 op.ui.debug(''.join(msg)) |
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419 |
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420 # handler is called outside the above try block so that we don't |
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421 # risk catching KeyErrors from anything other than the |
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422 # parthandlermapping lookup (any KeyError raised by handler() |
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423 # itself represents a defect of a different variety). |
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424 output = None |
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425 if op.captureoutput and op.reply is not None: |
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426 op.ui.pushbuffer(error=True, subproc=True) |
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427 output = '' |
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428 try: |
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429 handler(op, part) |
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430 finally: |
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431 if output is not None: |
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432 output = op.ui.popbuffer() |
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433 if output: |
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434 outpart = op.reply.newpart('output', data=output, |
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435 mandatory=False) |
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436 outpart.addparam('in-reply-to', str(part.id), mandatory=False) |
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437 finally: |
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438 # consume the part content to not corrupt the stream. |
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439 part.seek(0, 2) |
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440 |
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441 |
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442 def decodecaps(blob): |
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443 """decode a bundle2 caps bytes blob into a dictionary |
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444 |
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445 The blob is a list of capabilities (one per line) |
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446 Capabilities may have values using a line of the form:: |
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447 |
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448 capability=value1,value2,value3 |
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449 |
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450 The values are always a list.""" |
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451 caps = {} |
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452 for line in blob.splitlines(): |
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453 if not line: |
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454 continue |
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455 if '=' not in line: |
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456 key, vals = line, () |
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457 else: |
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458 key, vals = line.split('=', 1) |
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459 vals = vals.split(',') |
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460 key = urllib.unquote(key) |
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461 vals = [urllib.unquote(v) for v in vals] |
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462 caps[key] = vals |
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463 return caps |
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464 |
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465 def encodecaps(caps): |
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466 """encode a bundle2 caps dictionary into a bytes blob""" |
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467 chunks = [] |
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468 for ca in sorted(caps): |
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469 vals = caps[ca] |
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470 ca = urllib.quote(ca) |
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471 vals = [urllib.quote(v) for v in vals] |
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472 if vals: |
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473 ca = "%s=%s" % (ca, ','.join(vals)) |
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474 chunks.append(ca) |
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475 return '\n'.join(chunks) |
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476 |
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477 class bundle20(object): |
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478 """represent an outgoing bundle2 container |
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479 |
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480 Use the `addparam` method to add stream level parameter. and `newpart` to |
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481 populate it. Then call `getchunks` to retrieve all the binary chunks of |
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482 data that compose the bundle2 container.""" |
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483 |
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484 _magicstring = 'HG20' |
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485 |
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486 def __init__(self, ui, capabilities=()): |
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487 self.ui = ui |
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488 self._params = [] |
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489 self._parts = [] |
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490 self.capabilities = dict(capabilities) |
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491 self._compressor = util.compressors[None]() |
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492 |
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493 def setcompression(self, alg): |
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494 """setup core part compression to <alg>""" |
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495 if alg is None: |
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496 return |
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497 assert not any(n.lower() == 'Compression' for n, v in self._params) |
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498 self.addparam('Compression', alg) |
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499 self._compressor = util.compressors[alg]() |
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500 |
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501 @property |
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502 def nbparts(self): |
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503 """total number of parts added to the bundler""" |
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504 return len(self._parts) |
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505 |
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506 # methods used to defines the bundle2 content |
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507 def addparam(self, name, value=None): |
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508 """add a stream level parameter""" |
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509 if not name: |
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510 raise ValueError('empty parameter name') |
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511 if name[0] not in string.letters: |
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512 raise ValueError('non letter first character: %r' % name) |
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513 self._params.append((name, value)) |
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514 |
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515 def addpart(self, part): |
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516 """add a new part to the bundle2 container |
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517 |
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518 Parts contains the actual applicative payload.""" |
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519 assert part.id is None |
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520 part.id = len(self._parts) # very cheap counter |
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521 self._parts.append(part) |
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522 |
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523 def newpart(self, typeid, *args, **kwargs): |
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524 """create a new part and add it to the containers |
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525 |
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526 As the part is directly added to the containers. For now, this means |
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527 that any failure to properly initialize the part after calling |
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528 ``newpart`` should result in a failure of the whole bundling process. |
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529 |
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530 You can still fall back to manually create and add if you need better |
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|
531 control.""" |
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532 part = bundlepart(typeid, *args, **kwargs) |
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533 self.addpart(part) |
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534 return part |
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535 |
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536 # methods used to generate the bundle2 stream |
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537 def getchunks(self): |
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538 if self.ui.debugflag: |
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539 msg = ['bundle2-output-bundle: "%s",' % self._magicstring] |
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540 if self._params: |
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|
541 msg.append(' (%i params)' % len(self._params)) |
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542 msg.append(' %i parts total\n' % len(self._parts)) |
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543 self.ui.debug(''.join(msg)) |
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|
544 outdebug(self.ui, 'start emission of %s stream' % self._magicstring) |
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545 yield self._magicstring |
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546 param = self._paramchunk() |
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547 outdebug(self.ui, 'bundle parameter: %s' % param) |
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548 yield _pack(_fstreamparamsize, len(param)) |
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549 if param: |
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550 yield param |
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551 # starting compression |
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552 for chunk in self._getcorechunk(): |
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553 yield self._compressor.compress(chunk) |
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554 yield self._compressor.flush() |
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555 |
20804
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556 def _paramchunk(self): |
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557 """return a encoded version of all stream parameters""" |
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558 blocks = [] |
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559 for par, value in self._params: |
20811
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560 par = urllib.quote(par) |
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561 if value is not None: |
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562 value = urllib.quote(value) |
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563 par = '%s=%s' % (par, value) |
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564 blocks.append(par) |
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565 return ' '.join(blocks) |
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566 |
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567 def _getcorechunk(self): |
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568 """yield chunk for the core part of the bundle |
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569 |
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570 (all but headers and parameters)""" |
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571 outdebug(self.ui, 'start of parts') |
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572 for part in self._parts: |
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573 outdebug(self.ui, 'bundle part: "%s"' % part.type) |
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574 for chunk in part.getchunks(ui=self.ui): |
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575 yield chunk |
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576 outdebug(self.ui, 'end of bundle') |
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577 yield _pack(_fpartheadersize, 0) |
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578 |
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579 |
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580 def salvageoutput(self): |
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581 """return a list with a copy of all output parts in the bundle |
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582 |
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583 This is meant to be used during error handling to make sure we preserve |
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584 server output""" |
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585 salvaged = [] |
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586 for part in self._parts: |
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587 if part.type.startswith('output'): |
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588 salvaged.append(part.copy()) |
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589 return salvaged |
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|
590 |
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|
591 |
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592 class unpackermixin(object): |
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593 """A mixin to extract bytes and struct data from a stream""" |
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594 |
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595 def __init__(self, fp): |
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596 self._fp = fp |
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597 self._seekable = (util.safehasattr(fp, 'seek') and |
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598 util.safehasattr(fp, 'tell')) |
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599 |
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600 def _unpack(self, format): |
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601 """unpack this struct format from the stream""" |
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602 data = self._readexact(struct.calcsize(format)) |
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603 return _unpack(format, data) |
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604 |
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605 def _readexact(self, size): |
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606 """read exactly <size> bytes from the stream""" |
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607 return changegroup.readexactly(self._fp, size) |
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608 |
24070
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609 def seek(self, offset, whence=0): |
24026
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610 """move the underlying file pointer""" |
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611 if self._seekable: |
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612 return self._fp.seek(offset, whence) |
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613 else: |
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614 raise NotImplementedError(_('File pointer is not seekable')) |
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|
615 |
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616 def tell(self): |
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617 """return the file offset, or None if file is not seekable""" |
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618 if self._seekable: |
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619 try: |
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620 return self._fp.tell() |
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|
621 except IOError as e: |
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622 if e.errno == errno.ESPIPE: |
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|
623 self._seekable = False |
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624 else: |
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|
625 raise |
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|
626 return None |
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|
627 |
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|
628 def close(self): |
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629 """close underlying file""" |
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|
630 if util.safehasattr(self._fp, 'close'): |
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631 return self._fp.close() |
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|
632 |
25640
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|
633 def getunbundler(ui, fp, magicstring=None): |
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634 """return a valid unbundler object for a given magicstring""" |
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635 if magicstring is None: |
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|
636 magicstring = changegroup.readexactly(fp, 4) |
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|
637 magic, version = magicstring[0:2], magicstring[2:4] |
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|
638 if magic != 'HG': |
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|
639 raise error.Abort(_('not a Mercurial bundle')) |
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|
640 unbundlerclass = formatmap.get(version) |
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|
641 if unbundlerclass is None: |
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|
642 raise error.Abort(_('unknown bundle version %s') % version) |
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|
643 unbundler = unbundlerclass(ui, fp) |
25640
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|
644 indebug(ui, 'start processing of %s stream' % magicstring) |
24642
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|
645 return unbundler |
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|
646 |
21013
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647 class unbundle20(unpackermixin): |
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648 """interpret a bundle2 stream |
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|
649 |
21129
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650 This class is fed with a binary stream and yields parts through its |
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|
651 `iterparts` methods.""" |
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|
652 |
26542
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|
653 _magicstring = 'HG20' |
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|
654 |
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|
655 def __init__(self, ui, fp): |
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|
656 """If header is specified, we do not read it out of the stream.""" |
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657 self.ui = ui |
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658 self._decompressor = util.decompressors[None] |
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659 self._compressed = None |
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660 super(unbundle20, self).__init__(fp) |
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661 |
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662 @util.propertycache |
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663 def params(self): |
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664 """dictionary of stream level parameters""" |
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665 indebug(self.ui, 'reading bundle2 stream parameters') |
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666 params = {} |
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667 paramssize = self._unpack(_fstreamparamsize)[0] |
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668 if paramssize < 0: |
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669 raise error.BundleValueError('negative bundle param size: %i' |
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670 % paramssize) |
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671 if paramssize: |
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672 params = self._readexact(paramssize) |
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673 params = self._processallparams(params) |
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674 return params |
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675 |
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676 def _processallparams(self, paramsblock): |
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677 """""" |
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678 params = {} |
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679 for p in paramsblock.split(' '): |
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680 p = p.split('=', 1) |
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681 p = [urllib.unquote(i) for i in p] |
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682 if len(p) < 2: |
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683 p.append(None) |
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684 self._processparam(*p) |
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685 params[p[0]] = p[1] |
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686 return params |
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687 |
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688 |
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689 def _processparam(self, name, value): |
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690 """process a parameter, applying its effect if needed |
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691 |
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692 Parameter starting with a lower case letter are advisory and will be |
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693 ignored when unknown. Those starting with an upper case letter are |
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694 mandatory and will this function will raise a KeyError when unknown. |
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695 |
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696 Note: no option are currently supported. Any input will be either |
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697 ignored or failing. |
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698 """ |
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699 if not name: |
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700 raise ValueError('empty parameter name') |
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701 if name[0] not in string.letters: |
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702 raise ValueError('non letter first character: %r' % name) |
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703 try: |
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704 handler = b2streamparamsmap[name.lower()] |
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705 except KeyError: |
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706 if name[0].islower(): |
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707 indebug(self.ui, "ignoring unknown parameter %r" % name) |
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708 else: |
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709 raise error.BundleUnknownFeatureError(params=(name,)) |
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710 else: |
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711 handler(self, name, value) |
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712 |
26542
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713 def _forwardchunks(self): |
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714 """utility to transfer a bundle2 as binary |
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715 |
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716 This is made necessary by the fact the 'getbundle' command over 'ssh' |
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717 have no way to know then the reply end, relying on the bundle to be |
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718 interpreted to know its end. This is terrible and we are sorry, but we |
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719 needed to move forward to get general delta enabled. |
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720 """ |
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721 yield self._magicstring |
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722 assert 'params' not in vars(self) |
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723 paramssize = self._unpack(_fstreamparamsize)[0] |
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724 if paramssize < 0: |
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725 raise error.BundleValueError('negative bundle param size: %i' |
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|
726 % paramssize) |
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|
727 yield _pack(_fstreamparamsize, paramssize) |
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728 if paramssize: |
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729 params = self._readexact(paramssize) |
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730 self._processallparams(params) |
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731 yield params |
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732 assert self._decompressor is util.decompressors[None] |
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733 # From there, payload might need to be decompressed |
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734 self._fp = self._decompressor(self._fp) |
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735 emptycount = 0 |
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736 while emptycount < 2: |
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737 # so we can brainlessly loop |
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738 assert _fpartheadersize == _fpayloadsize |
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739 size = self._unpack(_fpartheadersize)[0] |
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740 yield _pack(_fpartheadersize, size) |
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741 if size: |
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742 emptycount = 0 |
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743 else: |
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744 emptycount += 1 |
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745 continue |
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746 if size == flaginterrupt: |
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747 continue |
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748 elif size < 0: |
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749 raise error.BundleValueError('negative chunk size: %i') |
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750 yield self._readexact(size) |
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751 |
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752 |
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753 def iterparts(self): |
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754 """yield all parts contained in the stream""" |
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755 # make sure param have been loaded |
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756 self.params |
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757 # From there, payload need to be decompressed |
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758 self._fp = self._decompressor(self._fp) |
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|
759 indebug(self.ui, 'start extraction of bundle2 parts') |
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760 headerblock = self._readpartheader() |
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|
761 while headerblock is not None: |
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|
762 part = unbundlepart(self.ui, headerblock, self._fp) |
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763 yield part |
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764 part.seek(0, 2) |
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765 headerblock = self._readpartheader() |
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766 indebug(self.ui, 'end of bundle2 stream') |
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767 |
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768 def _readpartheader(self): |
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769 """reads a part header size and return the bytes blob |
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770 |
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771 returns None if empty""" |
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772 headersize = self._unpack(_fpartheadersize)[0] |
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773 if headersize < 0: |
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774 raise error.BundleValueError('negative part header size: %i' |
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775 % headersize) |
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776 indebug(self.ui, 'part header size: %i' % headersize) |
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777 if headersize: |
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778 return self._readexact(headersize) |
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779 return None |
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780 |
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781 def compressed(self): |
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782 self.params # load params |
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783 return self._compressed |
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784 |
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785 formatmap = {'20': unbundle20} |
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786 |
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787 b2streamparamsmap = {} |
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788 |
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789 def b2streamparamhandler(name): |
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790 """register a handler for a stream level parameter""" |
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791 def decorator(func): |
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792 assert name not in formatmap |
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793 b2streamparamsmap[name] = func |
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794 return func |
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795 return decorator |
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|
796 |
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797 @b2streamparamhandler('compression') |
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798 def processcompression(unbundler, param, value): |
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799 """read compression parameter and install payload decompression""" |
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800 if value not in util.decompressors: |
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801 raise error.BundleUnknownFeatureError(params=(param,), |
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802 values=(value,)) |
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|
803 unbundler._decompressor = util.decompressors[value] |
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804 if value is not None: |
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|
805 unbundler._compressed = True |
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|
806 |
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diff
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|
807 class bundlepart(object): |
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808 """A bundle2 part contains application level payload |
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809 |
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810 The part `type` is used to route the part to the application level |
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|
811 handler. |
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|
812 |
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813 The part payload is contained in ``part.data``. It could be raw bytes or a |
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|
814 generator of byte chunks. |
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815 |
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816 You can add parameters to the part using the ``addparam`` method. |
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817 Parameters can be either mandatory (default) or advisory. Remote side |
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818 should be able to safely ignore the advisory ones. |
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819 |
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820 Both data and parameters cannot be modified after the generation has begun. |
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821 """ |
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822 |
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823 def __init__(self, parttype, mandatoryparams=(), advisoryparams=(), |
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|
824 data='', mandatory=True): |
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|
825 validateparttype(parttype) |
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|
826 self.id = None |
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827 self.type = parttype |
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828 self._data = data |
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829 self._mandatoryparams = list(mandatoryparams) |
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830 self._advisoryparams = list(advisoryparams) |
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|
831 # checking for duplicated entries |
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832 self._seenparams = set() |
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833 for pname, __ in self._mandatoryparams + self._advisoryparams: |
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834 if pname in self._seenparams: |
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|
835 raise RuntimeError('duplicated params: %s' % pname) |
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836 self._seenparams.add(pname) |
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837 # status of the part's generation: |
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838 # - None: not started, |
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839 # - False: currently generated, |
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840 # - True: generation done. |
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841 self._generated = None |
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842 self.mandatory = mandatory |
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|
843 |
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844 def copy(self): |
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845 """return a copy of the part |
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846 |
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847 The new part have the very same content but no partid assigned yet. |
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848 Parts with generated data cannot be copied.""" |
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849 assert not util.safehasattr(self.data, 'next') |
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850 return self.__class__(self.type, self._mandatoryparams, |
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851 self._advisoryparams, self._data, self.mandatory) |
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|
852 |
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853 # methods used to defines the part content |
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854 def __setdata(self, data): |
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855 if self._generated is not None: |
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|
856 raise error.ReadOnlyPartError('part is being generated') |
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857 self._data = data |
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858 def __getdata(self): |
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859 return self._data |
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860 data = property(__getdata, __setdata) |
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|
861 |
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862 @property |
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863 def mandatoryparams(self): |
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864 # make it an immutable tuple to force people through ``addparam`` |
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865 return tuple(self._mandatoryparams) |
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866 |
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867 @property |
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868 def advisoryparams(self): |
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869 # make it an immutable tuple to force people through ``addparam`` |
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parents:
21604
diff
changeset
|
870 return tuple(self._advisoryparams) |
f9dabfceb259
bundle2: introduce a ``addparam`` method on part
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parents:
21604
diff
changeset
|
871 |
f9dabfceb259
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Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21604
diff
changeset
|
872 def addparam(self, name, value='', mandatory=True): |
f9dabfceb259
bundle2: introduce a ``addparam`` method on part
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21604
diff
changeset
|
873 if self._generated is not None: |
21618
7568f5c1c801
bundle2: move exception classes into the error module
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21617
diff
changeset
|
874 raise error.ReadOnlyPartError('part is being generated') |
21607
054fa5176fa7
bundle2: forbid duplicate parameter keys
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21606
diff
changeset
|
875 if name in self._seenparams: |
054fa5176fa7
bundle2: forbid duplicate parameter keys
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21606
diff
changeset
|
876 raise ValueError('duplicated params: %s' % name) |
054fa5176fa7
bundle2: forbid duplicate parameter keys
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21606
diff
changeset
|
877 self._seenparams.add(name) |
21605
f9dabfceb259
bundle2: introduce a ``addparam`` method on part
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21604
diff
changeset
|
878 params = self._advisoryparams |
f9dabfceb259
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Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21604
diff
changeset
|
879 if mandatory: |
f9dabfceb259
bundle2: introduce a ``addparam`` method on part
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21604
diff
changeset
|
880 params = self._mandatoryparams |
f9dabfceb259
bundle2: introduce a ``addparam`` method on part
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21604
diff
changeset
|
881 params.append((name, value)) |
f9dabfceb259
bundle2: introduce a ``addparam`` method on part
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21604
diff
changeset
|
882 |
21601
7ff01befc7ec
bundle2: track life cycle of parts
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21600
diff
changeset
|
883 # methods used to generates the bundle2 stream |
25321
b44ee346211f
bundle2: add debug output for part generation
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25320
diff
changeset
|
884 def getchunks(self, ui): |
21601
7ff01befc7ec
bundle2: track life cycle of parts
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21600
diff
changeset
|
885 if self._generated is not None: |
7ff01befc7ec
bundle2: track life cycle of parts
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21600
diff
changeset
|
886 raise RuntimeError('part can only be consumed once') |
7ff01befc7ec
bundle2: track life cycle of parts
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21600
diff
changeset
|
887 self._generated = False |
25323
21a25fb81d2c
bundle2: add generic debug output regarding generated parts
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25322
diff
changeset
|
888 |
21a25fb81d2c
bundle2: add generic debug output regarding generated parts
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25322
diff
changeset
|
889 if ui.debugflag: |
21a25fb81d2c
bundle2: add generic debug output regarding generated parts
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25322
diff
changeset
|
890 msg = ['bundle2-output-part: "%s"' % self.type] |
21a25fb81d2c
bundle2: add generic debug output regarding generated parts
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25322
diff
changeset
|
891 if not self.mandatory: |
21a25fb81d2c
bundle2: add generic debug output regarding generated parts
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25322
diff
changeset
|
892 msg.append(' (advisory)') |
21a25fb81d2c
bundle2: add generic debug output regarding generated parts
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25322
diff
changeset
|
893 nbmp = len(self.mandatoryparams) |
21a25fb81d2c
bundle2: add generic debug output regarding generated parts
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25322
diff
changeset
|
894 nbap = len(self.advisoryparams) |
21a25fb81d2c
bundle2: add generic debug output regarding generated parts
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25322
diff
changeset
|
895 if nbmp or nbap: |
21a25fb81d2c
bundle2: add generic debug output regarding generated parts
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25322
diff
changeset
|
896 msg.append(' (params:') |
21a25fb81d2c
bundle2: add generic debug output regarding generated parts
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25322
diff
changeset
|
897 if nbmp: |
21a25fb81d2c
bundle2: add generic debug output regarding generated parts
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25322
diff
changeset
|
898 msg.append(' %i mandatory' % nbmp) |
21a25fb81d2c
bundle2: add generic debug output regarding generated parts
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25322
diff
changeset
|
899 if nbap: |
21a25fb81d2c
bundle2: add generic debug output regarding generated parts
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25322
diff
changeset
|
900 msg.append(' %i advisory' % nbmp) |
21a25fb81d2c
bundle2: add generic debug output regarding generated parts
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25322
diff
changeset
|
901 msg.append(')') |
21a25fb81d2c
bundle2: add generic debug output regarding generated parts
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25322
diff
changeset
|
902 if not self.data: |
21a25fb81d2c
bundle2: add generic debug output regarding generated parts
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25322
diff
changeset
|
903 msg.append(' empty payload') |
21a25fb81d2c
bundle2: add generic debug output regarding generated parts
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25322
diff
changeset
|
904 elif util.safehasattr(self.data, 'next'): |
21a25fb81d2c
bundle2: add generic debug output regarding generated parts
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25322
diff
changeset
|
905 msg.append(' streamed payload') |
21a25fb81d2c
bundle2: add generic debug output regarding generated parts
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25322
diff
changeset
|
906 else: |
21a25fb81d2c
bundle2: add generic debug output regarding generated parts
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25322
diff
changeset
|
907 msg.append(' %i bytes payload' % len(self.data)) |
21a25fb81d2c
bundle2: add generic debug output regarding generated parts
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25322
diff
changeset
|
908 msg.append('\n') |
21a25fb81d2c
bundle2: add generic debug output regarding generated parts
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25322
diff
changeset
|
909 ui.debug(''.join(msg)) |
21a25fb81d2c
bundle2: add generic debug output regarding generated parts
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25322
diff
changeset
|
910 |
20877
9e9e3a4e9261
bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20876
diff
changeset
|
911 #### header |
23590
4440c7cc3728
bundle2.bundlepart: make mandatory part flag explicit in API
Eric Sumner <ericsumner@fb.com>
parents:
23586
diff
changeset
|
912 if self.mandatory: |
4440c7cc3728
bundle2.bundlepart: make mandatory part flag explicit in API
Eric Sumner <ericsumner@fb.com>
parents:
23586
diff
changeset
|
913 parttype = self.type.upper() |
4440c7cc3728
bundle2.bundlepart: make mandatory part flag explicit in API
Eric Sumner <ericsumner@fb.com>
parents:
23586
diff
changeset
|
914 else: |
4440c7cc3728
bundle2.bundlepart: make mandatory part flag explicit in API
Eric Sumner <ericsumner@fb.com>
parents:
23586
diff
changeset
|
915 parttype = self.type.lower() |
25321
b44ee346211f
bundle2: add debug output for part generation
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25320
diff
changeset
|
916 outdebug(ui, 'part %s: "%s"' % (self.id, parttype)) |
20877
9e9e3a4e9261
bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20876
diff
changeset
|
917 ## parttype |
23590
4440c7cc3728
bundle2.bundlepart: make mandatory part flag explicit in API
Eric Sumner <ericsumner@fb.com>
parents:
23586
diff
changeset
|
918 header = [_pack(_fparttypesize, len(parttype)), |
4440c7cc3728
bundle2.bundlepart: make mandatory part flag explicit in API
Eric Sumner <ericsumner@fb.com>
parents:
23586
diff
changeset
|
919 parttype, _pack(_fpartid, self.id), |
20856
8a6a86c9a5b5
bundle2: support bundling of empty part (with a type)
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20844
diff
changeset
|
920 ] |
20877
9e9e3a4e9261
bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20876
diff
changeset
|
921 ## parameters |
9e9e3a4e9261
bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20876
diff
changeset
|
922 # count |
9e9e3a4e9261
bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20876
diff
changeset
|
923 manpar = self.mandatoryparams |
9e9e3a4e9261
bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20876
diff
changeset
|
924 advpar = self.advisoryparams |
9e9e3a4e9261
bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20876
diff
changeset
|
925 header.append(_pack(_fpartparamcount, len(manpar), len(advpar))) |
9e9e3a4e9261
bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20876
diff
changeset
|
926 # size |
9e9e3a4e9261
bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20876
diff
changeset
|
927 parsizes = [] |
9e9e3a4e9261
bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20876
diff
changeset
|
928 for key, value in manpar: |
9e9e3a4e9261
bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20876
diff
changeset
|
929 parsizes.append(len(key)) |
9e9e3a4e9261
bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20876
diff
changeset
|
930 parsizes.append(len(value)) |
9e9e3a4e9261
bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20876
diff
changeset
|
931 for key, value in advpar: |
9e9e3a4e9261
bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20876
diff
changeset
|
932 parsizes.append(len(key)) |
9e9e3a4e9261
bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20876
diff
changeset
|
933 parsizes.append(len(value)) |
9e9e3a4e9261
bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20876
diff
changeset
|
934 paramsizes = _pack(_makefpartparamsizes(len(parsizes) / 2), *parsizes) |
9e9e3a4e9261
bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20876
diff
changeset
|
935 header.append(paramsizes) |
9e9e3a4e9261
bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20876
diff
changeset
|
936 # key, value |
9e9e3a4e9261
bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20876
diff
changeset
|
937 for key, value in manpar: |
9e9e3a4e9261
bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20876
diff
changeset
|
938 header.append(key) |
9e9e3a4e9261
bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20876
diff
changeset
|
939 header.append(value) |
9e9e3a4e9261
bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20876
diff
changeset
|
940 for key, value in advpar: |
9e9e3a4e9261
bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20876
diff
changeset
|
941 header.append(key) |
9e9e3a4e9261
bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20876
diff
changeset
|
942 header.append(value) |
9e9e3a4e9261
bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20876
diff
changeset
|
943 ## finalize header |
20856
8a6a86c9a5b5
bundle2: support bundling of empty part (with a type)
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20844
diff
changeset
|
944 headerchunk = ''.join(header) |
25321
b44ee346211f
bundle2: add debug output for part generation
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25320
diff
changeset
|
945 outdebug(ui, 'header chunk size: %i' % len(headerchunk)) |
20856
8a6a86c9a5b5
bundle2: support bundling of empty part (with a type)
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20844
diff
changeset
|
946 yield _pack(_fpartheadersize, len(headerchunk)) |
8a6a86c9a5b5
bundle2: support bundling of empty part (with a type)
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20844
diff
changeset
|
947 yield headerchunk |
20877
9e9e3a4e9261
bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20876
diff
changeset
|
948 ## payload |
23067
420a051616ce
bundle2: transmit exception during part generation
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
23066
diff
changeset
|
949 try: |
420a051616ce
bundle2: transmit exception during part generation
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
23066
diff
changeset
|
950 for chunk in self._payloadchunks(): |
25321
b44ee346211f
bundle2: add debug output for part generation
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25320
diff
changeset
|
951 outdebug(ui, 'payload chunk size: %i' % len(chunk)) |
23067
420a051616ce
bundle2: transmit exception during part generation
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
23066
diff
changeset
|
952 yield _pack(_fpayloadsize, len(chunk)) |
420a051616ce
bundle2: transmit exception during part generation
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
23066
diff
changeset
|
953 yield chunk |
26144
4bc3707f3e67
bundle2: don't try to recover from a GeneratorExit (issue4785)
Augie Fackler <augie@google.com>
parents:
25919
diff
changeset
|
954 except GeneratorExit: |
4bc3707f3e67
bundle2: don't try to recover from a GeneratorExit (issue4785)
Augie Fackler <augie@google.com>
parents:
25919
diff
changeset
|
955 # GeneratorExit means that nobody is listening for our |
4bc3707f3e67
bundle2: don't try to recover from a GeneratorExit (issue4785)
Augie Fackler <augie@google.com>
parents:
25919
diff
changeset
|
956 # results anyway, so just bail quickly rather than trying |
4bc3707f3e67
bundle2: don't try to recover from a GeneratorExit (issue4785)
Augie Fackler <augie@google.com>
parents:
25919
diff
changeset
|
957 # to produce an error part. |
4bc3707f3e67
bundle2: don't try to recover from a GeneratorExit (issue4785)
Augie Fackler <augie@google.com>
parents:
25919
diff
changeset
|
958 ui.debug('bundle2-generatorexit\n') |
4bc3707f3e67
bundle2: don't try to recover from a GeneratorExit (issue4785)
Augie Fackler <augie@google.com>
parents:
25919
diff
changeset
|
959 raise |
25660
328739ea70c3
global: mass rewrite to use modern exception syntax
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25641
diff
changeset
|
960 except BaseException as exc: |
23067
420a051616ce
bundle2: transmit exception during part generation
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
23066
diff
changeset
|
961 # backup exception data for later |
25324
deed9c6b12d2
bundle2: add generic debug output regarding generated interruption
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25323
diff
changeset
|
962 ui.debug('bundle2-input-stream-interrupt: encoding exception %s' |
deed9c6b12d2
bundle2: add generic debug output regarding generated interruption
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25323
diff
changeset
|
963 % exc) |
23067
420a051616ce
bundle2: transmit exception during part generation
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
23066
diff
changeset
|
964 exc_info = sys.exc_info() |
420a051616ce
bundle2: transmit exception during part generation
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
23066
diff
changeset
|
965 msg = 'unexpected error: %s' % exc |
24686
e0e28e910fa3
bundle2: rename format, parts and config to final names
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24648
diff
changeset
|
966 interpart = bundlepart('error:abort', [('message', msg)], |
23590
4440c7cc3728
bundle2.bundlepart: make mandatory part flag explicit in API
Eric Sumner <ericsumner@fb.com>
parents:
23586
diff
changeset
|
967 mandatory=False) |
23067
420a051616ce
bundle2: transmit exception during part generation
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
23066
diff
changeset
|
968 interpart.id = 0 |
420a051616ce
bundle2: transmit exception during part generation
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
23066
diff
changeset
|
969 yield _pack(_fpayloadsize, -1) |
25321
b44ee346211f
bundle2: add debug output for part generation
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25320
diff
changeset
|
970 for chunk in interpart.getchunks(ui=ui): |
23067
420a051616ce
bundle2: transmit exception during part generation
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
23066
diff
changeset
|
971 yield chunk |
25321
b44ee346211f
bundle2: add debug output for part generation
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25320
diff
changeset
|
972 outdebug(ui, 'closing payload chunk') |
23067
420a051616ce
bundle2: transmit exception during part generation
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
23066
diff
changeset
|
973 # abort current part payload |
420a051616ce
bundle2: transmit exception during part generation
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
23066
diff
changeset
|
974 yield _pack(_fpayloadsize, 0) |
420a051616ce
bundle2: transmit exception during part generation
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
23066
diff
changeset
|
975 raise exc_info[0], exc_info[1], exc_info[2] |
21000
4cae06ae1562
bundle2: extract a _payloadchunks method for part
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20998
diff
changeset
|
976 # end of payload |
25321
b44ee346211f
bundle2: add debug output for part generation
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25320
diff
changeset
|
977 outdebug(ui, 'closing payload chunk') |
21000
4cae06ae1562
bundle2: extract a _payloadchunks method for part
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20998
diff
changeset
|
978 yield _pack(_fpayloadsize, 0) |
21601
7ff01befc7ec
bundle2: track life cycle of parts
Pierre-Yves David <pierre-yves.david@fb.com>
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979 self._generated = True |
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980 |
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981 def _payloadchunks(self): |
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982 """yield chunks of a the part payload |
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983 |
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984 Exists to handle the different methods to provide data to a part.""" |
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985 # we only support fixed size data now. |
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986 # This will be improved in the future. |
21001
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987 if util.safehasattr(self.data, 'next'): |
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988 buff = util.chunkbuffer(self.data) |
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989 chunk = buff.read(preferedchunksize) |
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990 while chunk: |
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991 yield chunk |
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992 chunk = buff.read(preferedchunksize) |
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993 elif len(self.data): |
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994 yield self.data |
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995 |
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996 |
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997 flaginterrupt = -1 |
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998 |
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999 class interrupthandler(unpackermixin): |
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1000 """read one part and process it with restricted capability |
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1001 |
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1002 This allows to transmit exception raised on the producer size during part |
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1003 iteration while the consumer is reading a part. |
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1004 |
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1005 Part processed in this manner only have access to a ui object,""" |
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1006 |
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1007 def __init__(self, ui, fp): |
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1008 super(interrupthandler, self).__init__(fp) |
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1009 self.ui = ui |
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1010 |
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1011 def _readpartheader(self): |
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1012 """reads a part header size and return the bytes blob |
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1013 |
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1014 returns None if empty""" |
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1015 headersize = self._unpack(_fpartheadersize)[0] |
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1016 if headersize < 0: |
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1017 raise error.BundleValueError('negative part header size: %i' |
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1018 % headersize) |
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1019 indebug(self.ui, 'part header size: %i\n' % headersize) |
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1020 if headersize: |
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1021 return self._readexact(headersize) |
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1022 return None |
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1023 |
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1024 def __call__(self): |
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1025 |
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1026 self.ui.debug('bundle2-input-stream-interrupt:' |
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1027 ' opening out of band context\n') |
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1028 indebug(self.ui, 'bundle2 stream interruption, looking for a part.') |
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1029 headerblock = self._readpartheader() |
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1030 if headerblock is None: |
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1031 indebug(self.ui, 'no part found during interruption.') |
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1032 return |
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1033 part = unbundlepart(self.ui, headerblock, self._fp) |
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1034 op = interruptoperation(self.ui) |
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1035 _processpart(op, part) |
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1036 self.ui.debug('bundle2-input-stream-interrupt:' |
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1037 ' closing out of band context\n') |
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1038 |
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1039 class interruptoperation(object): |
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1040 """A limited operation to be use by part handler during interruption |
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1041 |
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1042 It only have access to an ui object. |
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1043 """ |
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1044 |
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1045 def __init__(self, ui): |
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1046 self.ui = ui |
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1047 self.reply = None |
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1048 self.captureoutput = False |
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1049 |
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1050 @property |
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1051 def repo(self): |
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1052 raise RuntimeError('no repo access from stream interruption') |
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1053 |
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1054 def gettransaction(self): |
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1055 raise TransactionUnavailable('no repo access from stream interruption') |
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1056 |
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1057 class unbundlepart(unpackermixin): |
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1058 """a bundle part read from a bundle""" |
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1059 |
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1060 def __init__(self, ui, header, fp): |
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1061 super(unbundlepart, self).__init__(fp) |
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1062 self.ui = ui |
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1063 # unbundle state attr |
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1064 self._headerdata = header |
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1065 self._headeroffset = 0 |
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1066 self._initialized = False |
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1067 self.consumed = False |
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1068 # part data |
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1069 self.id = None |
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1070 self.type = None |
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1071 self.mandatoryparams = None |
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1072 self.advisoryparams = None |
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1073 self.params = None |
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1074 self.mandatorykeys = () |
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1075 self._payloadstream = None |
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1076 self._readheader() |
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1077 self._mandatory = None |
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1078 self._chunkindex = [] #(payload, file) position tuples for chunk starts |
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1079 self._pos = 0 |
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1080 |
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1081 def _fromheader(self, size): |
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1082 """return the next <size> byte from the header""" |
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1083 offset = self._headeroffset |
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1084 data = self._headerdata[offset:(offset + size)] |
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1085 self._headeroffset = offset + size |
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1086 return data |
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1087 |
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1088 def _unpackheader(self, format): |
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1089 """read given format from header |
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1090 |
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1091 This automatically compute the size of the format to read.""" |
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1092 data = self._fromheader(struct.calcsize(format)) |
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1093 return _unpack(format, data) |
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1094 |
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1095 def _initparams(self, mandatoryparams, advisoryparams): |
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1096 """internal function to setup all logic related parameters""" |
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1097 # make it read only to prevent people touching it by mistake. |
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1098 self.mandatoryparams = tuple(mandatoryparams) |
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1099 self.advisoryparams = tuple(advisoryparams) |
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1100 # user friendly UI |
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1101 self.params = dict(self.mandatoryparams) |
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1102 self.params.update(dict(self.advisoryparams)) |
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1103 self.mandatorykeys = frozenset(p[0] for p in mandatoryparams) |
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1104 |
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1105 def _payloadchunks(self, chunknum=0): |
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1106 '''seek to specified chunk and start yielding data''' |
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1107 if len(self._chunkindex) == 0: |
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1108 assert chunknum == 0, 'Must start with chunk 0' |
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1109 self._chunkindex.append((0, super(unbundlepart, self).tell())) |
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1110 else: |
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1111 assert chunknum < len(self._chunkindex), \ |
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1112 'Unknown chunk %d' % chunknum |
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1113 super(unbundlepart, self).seek(self._chunkindex[chunknum][1]) |
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1114 |
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1115 pos = self._chunkindex[chunknum][0] |
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1116 payloadsize = self._unpack(_fpayloadsize)[0] |
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1117 indebug(self.ui, 'payload chunk size: %i' % payloadsize) |
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1118 while payloadsize: |
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1119 if payloadsize == flaginterrupt: |
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1120 # interruption detection, the handler will now read a |
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1121 # single part and process it. |
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1122 interrupthandler(self.ui, self._fp)() |
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1123 elif payloadsize < 0: |
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1124 msg = 'negative payload chunk size: %i' % payloadsize |
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1125 raise error.BundleValueError(msg) |
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1126 else: |
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1127 result = self._readexact(payloadsize) |
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1128 chunknum += 1 |
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1129 pos += payloadsize |
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1130 if chunknum == len(self._chunkindex): |
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1131 self._chunkindex.append((pos, |
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1132 super(unbundlepart, self).tell())) |
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1133 yield result |
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1134 payloadsize = self._unpack(_fpayloadsize)[0] |
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1135 indebug(self.ui, 'payload chunk size: %i' % payloadsize) |
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1136 |
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1137 def _findchunk(self, pos): |
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1138 '''for a given payload position, return a chunk number and offset''' |
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1139 for chunk, (ppos, fpos) in enumerate(self._chunkindex): |
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1140 if ppos == pos: |
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1141 return chunk, 0 |
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1142 elif ppos > pos: |
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1143 return chunk - 1, pos - self._chunkindex[chunk - 1][0] |
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1144 raise ValueError('Unknown chunk') |
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1145 |
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1146 def _readheader(self): |
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1147 """read the header and setup the object""" |
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1148 typesize = self._unpackheader(_fparttypesize)[0] |
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1149 self.type = self._fromheader(typesize) |
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1150 indebug(self.ui, 'part type: "%s"' % self.type) |
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1151 self.id = self._unpackheader(_fpartid)[0] |
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1152 indebug(self.ui, 'part id: "%s"' % self.id) |
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1153 # extract mandatory bit from type |
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1154 self.mandatory = (self.type != self.type.lower()) |
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1155 self.type = self.type.lower() |
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1156 ## reading parameters |
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1157 # param count |
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1158 mancount, advcount = self._unpackheader(_fpartparamcount) |
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1159 indebug(self.ui, 'part parameters: %i' % (mancount + advcount)) |
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1160 # param size |
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1161 fparamsizes = _makefpartparamsizes(mancount + advcount) |
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1162 paramsizes = self._unpackheader(fparamsizes) |
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1163 # make it a list of couple again |
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1164 paramsizes = zip(paramsizes[::2], paramsizes[1::2]) |
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1165 # split mandatory from advisory |
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1166 mansizes = paramsizes[:mancount] |
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1167 advsizes = paramsizes[mancount:] |
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1168 # retrieve param value |
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1169 manparams = [] |
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1170 for key, value in mansizes: |
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1171 manparams.append((self._fromheader(key), self._fromheader(value))) |
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1172 advparams = [] |
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1173 for key, value in advsizes: |
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1174 advparams.append((self._fromheader(key), self._fromheader(value))) |
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1175 self._initparams(manparams, advparams) |
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1176 ## part payload |
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1177 self._payloadstream = util.chunkbuffer(self._payloadchunks()) |
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1178 # we read the data, tell it |
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1179 self._initialized = True |
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1180 |
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1181 def read(self, size=None): |
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1182 """read payload data""" |
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1183 if not self._initialized: |
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1184 self._readheader() |
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1185 if size is None: |
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1186 data = self._payloadstream.read() |
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1187 else: |
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1188 data = self._payloadstream.read(size) |
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1189 self._pos += len(data) |
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1190 if size is None or len(data) < size: |
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1191 if not self.consumed and self._pos: |
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1192 self.ui.debug('bundle2-input-part: total payload size %i\n' |
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1193 % self._pos) |
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1194 self.consumed = True |
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1195 return data |
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1196 |
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|
1197 def tell(self): |
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1198 return self._pos |
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diff
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|
1199 |
24037
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Eric Sumner <ericsumner@fb.com>
parents:
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|
1200 def seek(self, offset, whence=0): |
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parents:
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|
1201 if whence == 0: |
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Eric Sumner <ericsumner@fb.com>
parents:
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|
1202 newpos = offset |
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|
1203 elif whence == 1: |
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|
1204 newpos = self._pos + offset |
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Eric Sumner <ericsumner@fb.com>
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|
1205 elif whence == 2: |
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parents:
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|
1206 if not self.consumed: |
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parents:
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|
1207 self.read() |
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|
1208 newpos = self._chunkindex[-1][0] - offset |
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1209 else: |
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|
1210 raise ValueError('Unknown whence value: %r' % (whence,)) |
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|
1211 |
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|
1212 if newpos > self._chunkindex[-1][0] and not self.consumed: |
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parents:
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|
1213 self.read() |
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|
1214 if not 0 <= newpos <= self._chunkindex[-1][0]: |
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parents:
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|
1215 raise ValueError('Offset out of range') |
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|
1216 |
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|
1217 if self._pos != newpos: |
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parents:
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|
1218 chunk, internaloffset = self._findchunk(newpos) |
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Eric Sumner <ericsumner@fb.com>
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|
1219 self._payloadstream = util.chunkbuffer(self._payloadchunks(chunk)) |
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parents:
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|
1220 adjust = self.read(internaloffset) |
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parents:
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diff
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|
1221 if len(adjust) != internaloffset: |
26587
56b2bcea2529
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Pierre-Yves David <pierre-yves.david@fb.com>
parents:
26565
diff
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|
1222 raise error.Abort(_('Seek failed\n')) |
24037
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Eric Sumner <ericsumner@fb.com>
parents:
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|
1223 self._pos = newpos |
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|
1224 |
25317
5a5b7046d00e
bundle2: add an informative comment to the capability dict
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25315
diff
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|
1225 # These are only the static capabilities. |
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parents:
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1226 # Check the 'getrepocaps' function for the rest. |
24686
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1227 capabilities = {'HG20': (), |
25493
d8e7b0781ad7
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parents:
25492
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|
1228 'error': ('abort', 'unsupportedcontent', 'pushraced', |
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diff
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|
1229 'pushkey'), |
24686
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|
1230 'listkeys': (), |
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|
1231 'pushkey': (), |
23029
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Mike Hommey <mh@glandium.org>
parents:
23011
diff
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|
1232 'digests': tuple(sorted(util.DIGESTS.keys())), |
24686
e0e28e910fa3
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parents:
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diff
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|
1233 'remote-changegroup': ('http', 'https'), |
25401
d29201352af7
bundle2: part handler for processing .hgtags fnodes mappings
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25336
diff
changeset
|
1234 'hgtagsfnodes': (), |
22341
2d16b39601b5
obsmarker: move bundle2caps from the localrepo class to the bundle2 module
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parents:
22340
diff
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|
1235 } |
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parents:
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diff
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|
1236 |
23439
743736fc7c41
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Eric Sumner <ericsumner@fb.com>
parents:
23438
diff
changeset
|
1237 def getrepocaps(repo, allowpushback=False): |
22342
262c5cc126c1
bundle2: introduce a `getrepocaps` to retrieve the bundle2 caps of a repo
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parents:
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diff
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|
1238 """return the bundle2 capabilities for a given repo |
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|
1239 |
22343
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parents:
22342
diff
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|
1240 Exists to allow extensions (like evolution) to mutate the capabilities. |
22342
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parents:
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diff
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|
1241 """ |
22343
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diff
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|
1242 caps = capabilities.copy() |
24686
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diff
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|
1243 caps['changegroup'] = tuple(sorted(changegroup.packermap.keys())) |
22953
b1d694d3975e
obsolete: add exchange option
Durham Goode <durham@fb.com>
parents:
22661
diff
changeset
|
1244 if obsolete.isenabled(repo, obsolete.exchangeopt): |
22343
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Pierre-Yves David <pierre-yves.david@fb.com>
parents:
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diff
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|
1245 supportedformat = tuple('V%i' % v for v in obsolete.formats) |
24686
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parents:
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diff
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|
1246 caps['obsmarkers'] = supportedformat |
23439
743736fc7c41
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Eric Sumner <ericsumner@fb.com>
parents:
23438
diff
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|
1247 if allowpushback: |
24686
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parents:
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diff
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|
1248 caps['pushback'] = () |
22343
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diff
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|
1249 return caps |
22342
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|
1250 |
21644
17755dd8c509
bundle2: introduce a bundle2caps function
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21628
diff
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|
1251 def bundle2caps(remote): |
23139
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Mads Kiilerich <madski@unity3d.com>
parents:
23067
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|
1252 """return the bundle capabilities of a peer as dict""" |
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|
1253 raw = remote.capable('bundle2') |
21644
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parents:
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diff
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|
1254 if not raw and raw != '': |
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parents:
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diff
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|
1255 return {} |
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parents:
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diff
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|
1256 capsblob = urllib.unquote(remote.capable('bundle2')) |
21644
17755dd8c509
bundle2: introduce a bundle2caps function
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
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diff
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|
1257 return decodecaps(capsblob) |
21014
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bundle2: add an unbundle part responsible from unbundling part
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parents:
21013
diff
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|
1258 |
22344
9829b7948100
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Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22343
diff
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|
1259 def obsmarkersversion(caps): |
9829b7948100
bundle2: add a `obsmarkersversion` function to extract supported version
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parents:
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diff
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|
1260 """extract the list of supported obsmarkers versions from a bundle2caps dict |
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|
1261 """ |
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|
1262 obscaps = caps.get('obsmarkers', ()) |
22344
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diff
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|
1263 return [int(c[1:]) for c in obscaps if c.startswith('V')] |
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diff
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|
1264 |
25518
ca656f3dffd7
bundle2: provide number of changesets information to 'addchangegroup'
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parents:
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diff
changeset
|
1265 @parthandler('changegroup', ('version', 'nbchanges')) |
20998
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parents:
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diff
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|
1266 def handlechangegroup(op, inpart): |
20950
c7ceae0faf69
bundle2: first crude version of bundling changeset with bundle2
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diff
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|
1267 """apply a changegroup part on the repo |
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|
1268 |
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parents:
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diff
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|
1269 This is a very early implementation that will massive rework before being |
c7ceae0faf69
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diff
changeset
|
1270 inflicted to any end-user. |
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diff
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|
1271 """ |
20952
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diff
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|
1272 # Make sure we trigger a transaction creation |
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|
1273 # |
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|
1274 # The addchangegroup function will get a transaction object by itself, but |
b24ee5076b94
bundle2: make it possible have a global transaction for the unbundling
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|
1275 # we need to make sure we trigger the creation of a transaction object used |
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diff
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|
1276 # for the whole processing scope. |
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diff
changeset
|
1277 op.gettransaction() |
23170
02e8f9b60052
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Pierre-Yves David <pierre-yves.david@fb.com>
parents:
23169
diff
changeset
|
1278 unpackerversion = inpart.params.get('version', '01') |
02e8f9b60052
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parents:
23169
diff
changeset
|
1279 # We should raise an appropriate exception here |
02e8f9b60052
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parents:
23169
diff
changeset
|
1280 unpacker = changegroup.packermap[unpackerversion][1] |
26269
521b4d061d4a
bundle: use None when unpacking uncompressed changegroup
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
26144
diff
changeset
|
1281 cg = unpacker(inpart, None) |
23001
4df9b5e62f70
bundle2: add a comment about addchangegroup source and url
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parents:
22953
diff
changeset
|
1282 # the source and url passed here are overwritten by the one contained in |
4df9b5e62f70
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diff
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|
1283 # the transaction.hookargs argument. So 'bundle2' is a placeholder |
25518
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diff
changeset
|
1284 nbchangesets = None |
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|
1285 if 'nbchanges' in inpart.params: |
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diff
changeset
|
1286 nbchangesets = int(inpart.params.get('nbchanges')) |
26698
c94cdeeb586a
bundle2: use cg?unpacker.apply() instead of changegroup.addchangegroup()
Augie Fackler <augie@google.com>
parents:
26685
diff
changeset
|
1287 ret = cg.apply(op.repo, 'bundle2', 'bundle2', expectedtotal=nbchangesets) |
20950
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diff
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|
1288 op.records.add('changegroup', {'return': ret}) |
20998
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diff
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|
1289 if op.reply is not None: |
23139
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Mads Kiilerich <madski@unity3d.com>
parents:
23067
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|
1290 # This is definitely not the final form of this |
20998
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|
1291 # return. But one need to start somewhere. |
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|
1292 part = op.reply.newpart('reply:changegroup', mandatory=False) |
21606
e55888447958
bundle2: update part creators to ``addparam`` when relevant
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parents:
21605
diff
changeset
|
1293 part.addparam('in-reply-to', str(inpart.id), mandatory=False) |
e55888447958
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parents:
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diff
changeset
|
1294 part.addparam('return', '%i' % ret, mandatory=False) |
21019
3dc09f831a2e
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parents:
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diff
changeset
|
1295 assert not inpart.read() |
20950
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diff
changeset
|
1296 |
23029
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Mike Hommey <mh@glandium.org>
parents:
23011
diff
changeset
|
1297 _remotechangegroupparams = tuple(['url', 'size', 'digests'] + |
149fc8a44184
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Mike Hommey <mh@glandium.org>
parents:
23011
diff
changeset
|
1298 ['digest:%s' % k for k in util.DIGESTS.keys()]) |
24686
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changeset
|
1299 @parthandler('remote-changegroup', _remotechangegroupparams) |
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1300 def handleremotechangegroup(op, inpart): |
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1301 """apply a bundle10 on the repo, given an url and validation information |
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1302 |
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1303 All the information about the remote bundle to import are given as |
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1304 parameters. The parameters include: |
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1305 - url: the url to the bundle10. |
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1306 - size: the bundle10 file size. It is used to validate what was |
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1307 retrieved by the client matches the server knowledge about the bundle. |
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1308 - digests: a space separated list of the digest types provided as |
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1309 parameters. |
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1310 - digest:<digest-type>: the hexadecimal representation of the digest with |
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1311 that name. Like the size, it is used to validate what was retrieved by |
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1312 the client matches what the server knows about the bundle. |
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1313 |
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1314 When multiple digest types are given, all of them are checked. |
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1315 """ |
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1316 try: |
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1317 raw_url = inpart.params['url'] |
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1318 except KeyError: |
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1319 raise error.Abort(_('remote-changegroup: missing "%s" param') % 'url') |
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1320 parsed_url = util.url(raw_url) |
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1321 if parsed_url.scheme not in capabilities['remote-changegroup']: |
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1322 raise error.Abort(_('remote-changegroup does not support %s urls') % |
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1323 parsed_url.scheme) |
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1324 |
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1325 try: |
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1326 size = int(inpart.params['size']) |
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1327 except ValueError: |
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1328 raise error.Abort(_('remote-changegroup: invalid value for param "%s"') |
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1329 % 'size') |
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1330 except KeyError: |
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1331 raise error.Abort(_('remote-changegroup: missing "%s" param') % 'size') |
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1332 |
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1333 digests = {} |
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1334 for typ in inpart.params.get('digests', '').split(): |
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1335 param = 'digest:%s' % typ |
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1336 try: |
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1337 value = inpart.params[param] |
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1338 except KeyError: |
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1339 raise error.Abort(_('remote-changegroup: missing "%s" param') % |
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1340 param) |
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1341 digests[typ] = value |
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1342 |
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1343 real_part = util.digestchecker(url.open(op.ui, raw_url), size, digests) |
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1344 |
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1345 # Make sure we trigger a transaction creation |
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1346 # |
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1347 # The addchangegroup function will get a transaction object by itself, but |
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1348 # we need to make sure we trigger the creation of a transaction object used |
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1349 # for the whole processing scope. |
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1350 op.gettransaction() |
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1351 from . import exchange |
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1352 cg = exchange.readbundle(op.repo.ui, real_part, raw_url) |
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1353 if not isinstance(cg, changegroup.cg1unpacker): |
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1354 raise error.Abort(_('%s: not a bundle version 1.0') % |
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1355 util.hidepassword(raw_url)) |
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1356 ret = cg.apply(op.repo, 'bundle2', 'bundle2') |
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1357 op.records.add('changegroup', {'return': ret}) |
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1358 if op.reply is not None: |
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1359 # This is definitely not the final form of this |
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1360 # return. But one need to start somewhere. |
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1361 part = op.reply.newpart('reply:changegroup') |
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1362 part.addparam('in-reply-to', str(inpart.id), mandatory=False) |
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1363 part.addparam('return', '%i' % ret, mandatory=False) |
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1364 try: |
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1365 real_part.validate() |
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1366 except error.Abort as e: |
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1367 raise error.Abort(_('bundle at %s is corrupted:\n%s') % |
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1368 (util.hidepassword(raw_url), str(e))) |
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1369 assert not inpart.read() |
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1370 |
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1371 @parthandler('reply:changegroup', ('return', 'in-reply-to')) |
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1372 def handlereplychangegroup(op, inpart): |
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1373 ret = int(inpart.params['return']) |
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1374 replyto = int(inpart.params['in-reply-to']) |
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1375 op.records.add('changegroup', {'return': ret}, replyto) |
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1376 |
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1377 @parthandler('check:heads') |
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1378 def handlecheckheads(op, inpart): |
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1379 """check that head of the repo did not change |
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1380 |
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1381 This is used to detect a push race when using unbundle. |
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1382 This replaces the "heads" argument of unbundle.""" |
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1383 h = inpart.read(20) |
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1384 heads = [] |
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1385 while len(h) == 20: |
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1386 heads.append(h) |
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1387 h = inpart.read(20) |
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1388 assert not h |
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1389 # Trigger a transaction so that we are guaranteed to have the lock now. |
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1390 if op.ui.configbool('experimental', 'bundle2lazylocking'): |
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1391 op.gettransaction() |
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1392 if heads != op.repo.heads(): |
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1393 raise error.PushRaced('repository changed while pushing - ' |
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1394 'please try again') |
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1395 |
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1396 @parthandler('output') |
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1397 def handleoutput(op, inpart): |
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1398 """forward output captured on the server to the client""" |
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1399 for line in inpart.read().splitlines(): |
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1400 op.ui.status(('remote: %s\n' % line)) |
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1401 |
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1402 @parthandler('replycaps') |
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1403 def handlereplycaps(op, inpart): |
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1404 """Notify that a reply bundle should be created |
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1405 |
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1406 The payload contains the capabilities information for the reply""" |
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1407 caps = decodecaps(inpart.read()) |
21130
1ff06386217f
bundle2: introduce `replycaps` part for on-demand reply
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21129
diff
changeset
|
1408 if op.reply is None: |
21135
98fbf3adfd83
bundle2: add capabilities support in `replycaps` part
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21134
diff
changeset
|
1409 op.reply = bundle20(op.ui, caps) |
21131
b7435117d951
bundle2: capture remote stdout while unbundling
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21130
diff
changeset
|
1410 |
26829
58f1645f72c3
bundle2: attribute remote failures to remote (issue4788)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26802
diff
changeset
|
1411 class AbortFromPart(error.Abort): |
58f1645f72c3
bundle2: attribute remote failures to remote (issue4788)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26802
diff
changeset
|
1412 """Sub-class of Abort that denotes an error from a bundle2 part.""" |
58f1645f72c3
bundle2: attribute remote failures to remote (issue4788)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26802
diff
changeset
|
1413 |
24686
e0e28e910fa3
bundle2: rename format, parts and config to final names
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24648
diff
changeset
|
1414 @parthandler('error:abort', ('message', 'hint')) |
24741
bb67e52362d6
bundle2: fix names for error part handler
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24733
diff
changeset
|
1415 def handleerrorabort(op, inpart): |
21177
952af771bc17
bundle2: gracefully handle abort during unbundle
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21176
diff
changeset
|
1416 """Used to transmit abort error over the wire""" |
26829
58f1645f72c3
bundle2: attribute remote failures to remote (issue4788)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26802
diff
changeset
|
1417 raise AbortFromPart(inpart.params['message'], |
58f1645f72c3
bundle2: attribute remote failures to remote (issue4788)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26802
diff
changeset
|
1418 hint=inpart.params.get('hint')) |
21183
4345274adc4b
bundle2: gracefully handle UnknownPartError during unbundle
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21179
diff
changeset
|
1419 |
25493
d8e7b0781ad7
bundle2: convey PushkeyFailed error over the wire
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25492
diff
changeset
|
1420 @parthandler('error:pushkey', ('namespace', 'key', 'new', 'old', 'ret', |
d8e7b0781ad7
bundle2: convey PushkeyFailed error over the wire
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25492
diff
changeset
|
1421 'in-reply-to')) |
d8e7b0781ad7
bundle2: convey PushkeyFailed error over the wire
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25492
diff
changeset
|
1422 def handleerrorpushkey(op, inpart): |
d8e7b0781ad7
bundle2: convey PushkeyFailed error over the wire
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25492
diff
changeset
|
1423 """Used to transmit failure of a mandatory pushkey over the wire""" |
d8e7b0781ad7
bundle2: convey PushkeyFailed error over the wire
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25492
diff
changeset
|
1424 kwargs = {} |
d8e7b0781ad7
bundle2: convey PushkeyFailed error over the wire
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25492
diff
changeset
|
1425 for name in ('namespace', 'key', 'new', 'old', 'ret'): |
d8e7b0781ad7
bundle2: convey PushkeyFailed error over the wire
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25492
diff
changeset
|
1426 value = inpart.params.get(name) |
d8e7b0781ad7
bundle2: convey PushkeyFailed error over the wire
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25492
diff
changeset
|
1427 if value is not None: |
d8e7b0781ad7
bundle2: convey PushkeyFailed error over the wire
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25492
diff
changeset
|
1428 kwargs[name] = value |
d8e7b0781ad7
bundle2: convey PushkeyFailed error over the wire
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25492
diff
changeset
|
1429 raise error.PushkeyFailed(inpart.params['in-reply-to'], **kwargs) |
d8e7b0781ad7
bundle2: convey PushkeyFailed error over the wire
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25492
diff
changeset
|
1430 |
24686
e0e28e910fa3
bundle2: rename format, parts and config to final names
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24648
diff
changeset
|
1431 @parthandler('error:unsupportedcontent', ('parttype', 'params')) |
24741
bb67e52362d6
bundle2: fix names for error part handler
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24733
diff
changeset
|
1432 def handleerrorunsupportedcontent(op, inpart): |
21619
292331e906d7
bundle2: rename b2x:error:unknownpart to b2x:error:unsupportedcontent
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21618
diff
changeset
|
1433 """Used to transmit unknown content error over the wire""" |
21622
457492741007
bundle2: support transmission of params error over the wire
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21620
diff
changeset
|
1434 kwargs = {} |
21627
3e8bcc90f07c
bundle2: support None parttype in BundleValueError
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21626
diff
changeset
|
1435 parttype = inpart.params.get('parttype') |
3e8bcc90f07c
bundle2: support None parttype in BundleValueError
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21626
diff
changeset
|
1436 if parttype is not None: |
3e8bcc90f07c
bundle2: support None parttype in BundleValueError
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21626
diff
changeset
|
1437 kwargs['parttype'] = parttype |
21622
457492741007
bundle2: support transmission of params error over the wire
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21620
diff
changeset
|
1438 params = inpart.params.get('params') |
457492741007
bundle2: support transmission of params error over the wire
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21620
diff
changeset
|
1439 if params is not None: |
457492741007
bundle2: support transmission of params error over the wire
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21620
diff
changeset
|
1440 kwargs['params'] = params.split('\0') |
457492741007
bundle2: support transmission of params error over the wire
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21620
diff
changeset
|
1441 |
26393
cff70549a959
bundle2: rename error exception class for unsupported feature
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
26269
diff
changeset
|
1442 raise error.BundleUnknownFeatureError(**kwargs) |
21186
9f3652e851f8
bundle2: gracefully handle PushRaced error during unbundle
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21185
diff
changeset
|
1443 |
24686
e0e28e910fa3
bundle2: rename format, parts and config to final names
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24648
diff
changeset
|
1444 @parthandler('error:pushraced', ('message',)) |
24741
bb67e52362d6
bundle2: fix names for error part handler
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24733
diff
changeset
|
1445 def handleerrorpushraced(op, inpart): |
21186
9f3652e851f8
bundle2: gracefully handle PushRaced error during unbundle
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21185
diff
changeset
|
1446 """Used to transmit push race error over the wire""" |
21611
71b7b3f79a3c
bundle2: use the new ``part.params`` dictionary
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21610
diff
changeset
|
1447 raise error.ResponseError(_('push failed:'), inpart.params['message']) |
21655
35095f332846
bundle: introduce a listkey handler
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21644
diff
changeset
|
1448 |
24686
e0e28e910fa3
bundle2: rename format, parts and config to final names
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24648
diff
changeset
|
1449 @parthandler('listkeys', ('namespace',)) |
21655
35095f332846
bundle: introduce a listkey handler
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21644
diff
changeset
|
1450 def handlelistkeys(op, inpart): |
35095f332846
bundle: introduce a listkey handler
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21644
diff
changeset
|
1451 """retrieve pushkey namespace content stored in a bundle2""" |
35095f332846
bundle: introduce a listkey handler
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21644
diff
changeset
|
1452 namespace = inpart.params['namespace'] |
35095f332846
bundle: introduce a listkey handler
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21644
diff
changeset
|
1453 r = pushkey.decodekeys(inpart.read()) |
35095f332846
bundle: introduce a listkey handler
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21644
diff
changeset
|
1454 op.records.add('listkeys', (namespace, r)) |
21660
e87d2a12d41b
bundle2: add ``pushkey`` support
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21655
diff
changeset
|
1455 |
24686
e0e28e910fa3
bundle2: rename format, parts and config to final names
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24648
diff
changeset
|
1456 @parthandler('pushkey', ('namespace', 'key', 'old', 'new')) |
21660
e87d2a12d41b
bundle2: add ``pushkey`` support
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21655
diff
changeset
|
1457 def handlepushkey(op, inpart): |
e87d2a12d41b
bundle2: add ``pushkey`` support
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21655
diff
changeset
|
1458 """process a pushkey request""" |
e87d2a12d41b
bundle2: add ``pushkey`` support
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21655
diff
changeset
|
1459 dec = pushkey.decode |
e87d2a12d41b
bundle2: add ``pushkey`` support
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21655
diff
changeset
|
1460 namespace = dec(inpart.params['namespace']) |
e87d2a12d41b
bundle2: add ``pushkey`` support
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21655
diff
changeset
|
1461 key = dec(inpart.params['key']) |
e87d2a12d41b
bundle2: add ``pushkey`` support
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21655
diff
changeset
|
1462 old = dec(inpart.params['old']) |
e87d2a12d41b
bundle2: add ``pushkey`` support
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21655
diff
changeset
|
1463 new = dec(inpart.params['new']) |
26565
ee1bcb9aa6e4
bundle2: add op.gettransaction() to handlers that need the lock
Durham Goode <durham@fb.com>
parents:
26542
diff
changeset
|
1464 # 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:
26542
diff
changeset
|
1465 # pushkey. |
ee1bcb9aa6e4
bundle2: add op.gettransaction() to handlers that need the lock
Durham Goode <durham@fb.com>
parents:
26542
diff
changeset
|
1466 if op.ui.configbool('experimental', 'bundle2lazylocking'): |
ee1bcb9aa6e4
bundle2: add op.gettransaction() to handlers that need the lock
Durham Goode <durham@fb.com>
parents:
26542
diff
changeset
|
1467 op.gettransaction() |
21660
e87d2a12d41b
bundle2: add ``pushkey`` support
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21655
diff
changeset
|
1468 ret = op.repo.pushkey(namespace, key, old, new) |
e87d2a12d41b
bundle2: add ``pushkey`` support
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21655
diff
changeset
|
1469 record = {'namespace': namespace, |
e87d2a12d41b
bundle2: add ``pushkey`` support
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21655
diff
changeset
|
1470 'key': key, |
e87d2a12d41b
bundle2: add ``pushkey`` support
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21655
diff
changeset
|
1471 'old': old, |
e87d2a12d41b
bundle2: add ``pushkey`` support
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21655
diff
changeset
|
1472 'new': new} |
e87d2a12d41b
bundle2: add ``pushkey`` support
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21655
diff
changeset
|
1473 op.records.add('pushkey', record) |
e87d2a12d41b
bundle2: add ``pushkey`` support
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21655
diff
changeset
|
1474 if op.reply is not None: |
24686
e0e28e910fa3
bundle2: rename format, parts and config to final names
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24648
diff
changeset
|
1475 rpart = op.reply.newpart('reply:pushkey') |
21660
e87d2a12d41b
bundle2: add ``pushkey`` support
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21655
diff
changeset
|
1476 rpart.addparam('in-reply-to', str(inpart.id), mandatory=False) |
e87d2a12d41b
bundle2: add ``pushkey`` support
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21655
diff
changeset
|
1477 rpart.addparam('return', '%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
|
1478 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
|
1479 kwargs = {} |
a5192774e925
bundle2: introduce a PushkeyFail error to abort unbundle on pushkey error
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25481
diff
changeset
|
1480 for key in ('namespace', 'key', 'new', 'old', 'ret'): |
a5192774e925
bundle2: introduce a PushkeyFail error to abort unbundle on pushkey error
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25481
diff
changeset
|
1481 if key in inpart.params: |
a5192774e925
bundle2: introduce a PushkeyFail error to abort unbundle on pushkey error
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25481
diff
changeset
|
1482 kwargs[key] = inpart.params[key] |
a5192774e925
bundle2: introduce a PushkeyFail error to abort unbundle on pushkey error
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25481
diff
changeset
|
1483 raise error.PushkeyFailed(partid=str(inpart.id), **kwargs) |
21660
e87d2a12d41b
bundle2: add ``pushkey`` support
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21655
diff
changeset
|
1484 |
24686
e0e28e910fa3
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Pierre-Yves David <pierre-yves.david@fb.com>
parents:
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diff
changeset
|
1485 @parthandler('reply:pushkey', ('return', 'in-reply-to')) |
21660
e87d2a12d41b
bundle2: add ``pushkey`` support
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21655
diff
changeset
|
1486 def handlepushkeyreply(op, inpart): |
e87d2a12d41b
bundle2: add ``pushkey`` support
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21655
diff
changeset
|
1487 """retrieve the result of a pushkey request""" |
e87d2a12d41b
bundle2: add ``pushkey`` support
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21655
diff
changeset
|
1488 ret = int(inpart.params['return']) |
e87d2a12d41b
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Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21655
diff
changeset
|
1489 partid = int(inpart.params['in-reply-to']) |
e87d2a12d41b
bundle2: add ``pushkey`` support
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21655
diff
changeset
|
1490 op.records.add('pushkey', {'return': ret}, partid) |
22336
60786c8a2f70
bundle2: add an obsmarkers part handler
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21900
diff
changeset
|
1491 |
24686
e0e28e910fa3
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Pierre-Yves David <pierre-yves.david@fb.com>
parents:
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diff
changeset
|
1492 @parthandler('obsmarkers') |
22336
60786c8a2f70
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Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21900
diff
changeset
|
1493 def handleobsmarker(op, inpart): |
60786c8a2f70
bundle2: add an obsmarkers part handler
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21900
diff
changeset
|
1494 """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
|
1495 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
|
1496 markerdata = inpart.read() |
c00e4338fa4b
obsolete: experimental flag to get debug about obsmarkers exchange
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24686
diff
changeset
|
1497 if op.ui.config('experimental', 'obsmarkers-exchange-debug', False): |
c00e4338fa4b
obsolete: experimental flag to get debug about obsmarkers exchange
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24686
diff
changeset
|
1498 op.ui.write(('obsmarker-exchange: %i bytes received\n') |
c00e4338fa4b
obsolete: experimental flag to get debug about obsmarkers exchange
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parents:
24686
diff
changeset
|
1499 % len(markerdata)) |
26685
ea390d889d3a
bundle2: gracefully skip 'obsmarkers' part if evolution is disabled
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
26587
diff
changeset
|
1500 # The mergemarkers call will crash if marker creation is not enabled. |
ea390d889d3a
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Pierre-Yves David <pierre-yves.david@fb.com>
parents:
26587
diff
changeset
|
1501 # we want to avoid this if the part is advisory. |
ea390d889d3a
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Pierre-Yves David <pierre-yves.david@fb.com>
parents:
26587
diff
changeset
|
1502 if not inpart.mandatory and op.repo.obsstore.readonly: |
ea390d889d3a
bundle2: gracefully skip 'obsmarkers' part if evolution is disabled
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
26587
diff
changeset
|
1503 op.repo.ui.debug('ignoring obsolescence markers, feature not enabled') |
ea390d889d3a
bundle2: gracefully skip 'obsmarkers' part if evolution is disabled
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parents:
26587
diff
changeset
|
1504 return |
24733
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Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24686
diff
changeset
|
1505 new = op.repo.obsstore.mergemarkers(tr, markerdata) |
22337
c380fe290290
obsmarker: write a message with the number of markers added through bundle2
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22336
diff
changeset
|
1506 if new: |
c380fe290290
obsmarker: write a message with the number of markers added through bundle2
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22336
diff
changeset
|
1507 op.repo.ui.status(_('%i new obsolescence markers\n') % new) |
22338
8fcd56095d3b
obssmarker: add a bundle2 record with the number of markers added
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22337
diff
changeset
|
1508 op.records.add('obsmarkers', {'new': new}) |
22340
394a17de6a2d
obsmarker: produce a reply part for markers received through bundle2
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1509 if op.reply is not None: |
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1510 rpart = op.reply.newpart('reply:obsmarkers') |
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1511 rpart.addparam('in-reply-to', str(inpart.id), mandatory=False) |
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1512 rpart.addparam('new', '%i' % new, mandatory=False) |
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1513 |
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1514 |
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1515 @parthandler('reply:obsmarkers', ('new', 'in-reply-to')) |
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1516 def handleobsmarkerreply(op, inpart): |
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1517 """retrieve the result of a pushkey request""" |
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1518 ret = int(inpart.params['new']) |
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1519 partid = int(inpart.params['in-reply-to']) |
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1520 op.records.add('obsmarkers', {'new': ret}, partid) |
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1521 |
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1522 @parthandler('hgtagsfnodes') |
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1523 def handlehgtagsfnodes(op, inpart): |
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1524 """Applies .hgtags fnodes cache entries to the local repo. |
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1525 |
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1526 Payload is pairs of 20 byte changeset nodes and filenodes. |
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1527 """ |
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1528 # Grab the transaction so we ensure that we have the lock at this point. |
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1529 if op.ui.configbool('experimental', 'bundle2lazylocking'): |
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1530 op.gettransaction() |
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1531 cache = tags.hgtagsfnodescache(op.repo.unfiltered()) |
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1532 |
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1533 count = 0 |
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1534 while True: |
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1535 node = inpart.read(20) |
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1536 fnode = inpart.read(20) |
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1537 if len(node) < 20 or len(fnode) < 20: |
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1538 op.ui.debug('ignoring incomplete received .hgtags fnodes data\n') |
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1539 break |
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1540 cache.setfnode(node, fnode) |
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1541 count += 1 |
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1542 |
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1543 cache.write() |
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1544 op.ui.debug('applied %i hgtags fnodes cache entries\n' % count) |