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annotate mercurial/bundle2.py @ 21134:2f8c4fa237f5

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bundle2: adds a capabilities attribute on bundler20 This attribute conveys the capabilities supported by the destination of the bundle. It is used to decide which parts to include in the bundle. This is currently a set but will probably be turned into a dictionary to allow capabilities with values.
author Pierre-Yves David <pierre-yves.david@fb.com>
date Wed, 16 Apr 2014 23:55:59 -0400
parents bef4a2adc532
children 98fbf3adfd83
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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: (16 bits integer)
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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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52
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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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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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67 :header size: (16 bits inter)
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68
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69 The total number of Bytes used by the part headers. 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
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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 :payload:
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117
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118 payload is a series of `<chunksize><chunkdata>`.
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119
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120 `chunksize` is a 32 bits integer, `chunkdata` are plain bytes (as much as
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121 `chunksize` says)` The payload part is concluded by a zero size chunk.
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122
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123 The current implementation always produces either zero or one chunk.
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124 This is an implementation limitation that will ultimately be lifted.
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125
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126 Bundle processing
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127 ============================
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128
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129 Each part is processed in order using a "part handler". Handler are registered
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130 for a certain part type.
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131
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132 The matching of a part to its handler is case insensitive. The case of the
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133 part type is used to know if a part is mandatory or advisory. If the Part type
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134 contains any uppercase char it is considered mandatory. When no handler is
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135 known for a Mandatory part, the process is aborted and an exception is raised.
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136 If the part is advisory and no handler is known, the part is ignored. When the
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137 process is aborted, the full bundle is still read from the stream to keep the
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138 channel usable. But none of the part read from an abort are processed. In the
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139 future, dropping the stream may become an option for channel we do not care to
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140 preserve.
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141 """
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142
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143 import util
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144 import struct
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145 import urllib
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146 import string
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147
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148 import changegroup
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149 from i18n import _
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150
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151 _pack = struct.pack
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152 _unpack = struct.unpack
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153
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154 _magicstring = 'HG20'
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155
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156 _fstreamparamsize = '>H'
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157 _fpartheadersize = '>H'
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158 _fparttypesize = '>B'
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159 _fpartid = '>I'
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160 _fpayloadsize = '>I'
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161 _fpartparamcount = '>BB'
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162
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163 preferedchunksize = 4096
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164
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165 def _makefpartparamsizes(nbparams):
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166 """return a struct format to read part parameter sizes
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167
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168 The number parameters is variable so we need to build that format
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169 dynamically.
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170 """
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171 return '>'+('BB'*nbparams)
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172
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173 parthandlermapping = {}
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174
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175 def parthandler(parttype):
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176 """decorator that register a function as a bundle2 part handler
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177
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178 eg::
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179
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180 @parthandler('myparttype')
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181 def myparttypehandler(...):
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182 '''process a part of type "my part".'''
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183 ...
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184 """
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185 def _decorator(func):
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186 lparttype = parttype.lower() # enforce lower case matching.
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187 assert lparttype not in parthandlermapping
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188 parthandlermapping[lparttype] = func
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189 return func
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190 return _decorator
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191
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192 class unbundlerecords(object):
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193 """keep record of what happens during and unbundle
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194
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195 New records are added using `records.add('cat', obj)`. Where 'cat' is a
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196 category of record and obj is an arbitrary object.
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197
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198 `records['cat']` will return all entries of this category 'cat'.
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199
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200 Iterating on the object itself will yield `('category', obj)` tuples
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201 for all entries.
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202
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203 All iterations happens in chronological order.
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204 """
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205
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206 def __init__(self):
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207 self._categories = {}
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208 self._sequences = []
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209 self._replies = {}
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210
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211 def add(self, category, entry, inreplyto=None):
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212 """add a new record of a given category.
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213
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214 The entry can then be retrieved in the list returned by
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215 self['category']."""
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216 self._categories.setdefault(category, []).append(entry)
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217 self._sequences.append((category, entry))
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218 if inreplyto is not None:
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219 self.getreplies(inreplyto).add(category, entry)
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220
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221 def getreplies(self, partid):
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222 """get the subrecords that replies to a specific part"""
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223 return self._replies.setdefault(partid, unbundlerecords())
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224
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225 def __getitem__(self, cat):
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226 return tuple(self._categories.get(cat, ()))
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227
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228 def __iter__(self):
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229 return iter(self._sequences)
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230
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231 def __len__(self):
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232 return len(self._sequences)
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233
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234 def __nonzero__(self):
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235 return bool(self._sequences)
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236
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237 class bundleoperation(object):
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238 """an object that represents a single bundling process
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239
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240 Its purpose is to carry unbundle-related objects and states.
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241
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242 A new object should be created at the beginning of each bundle processing.
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243 The object is to be returned by the processing function.
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244
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245 The object has very little content now it will ultimately contain:
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246 * an access to the repo the bundle is applied to,
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247 * a ui object,
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248 * a way to retrieve a transaction to add changes to the repo,
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249 * a way to record the result of processing each part,
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250 * a way to construct a bundle response when applicable.
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251 """
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252
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253 def __init__(self, repo, transactiongetter):
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254 self.repo = repo
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255 self.ui = repo.ui
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diff changeset
256 self.records = unbundlerecords()
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257 self.gettransaction = transactiongetter
20997
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diff changeset
258 self.reply = None
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diff changeset
259
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diff changeset
260 class TransactionUnavailable(RuntimeError):
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diff changeset
261 pass
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262
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diff changeset
263 def _notransaction():
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264 """default method to get a transaction while processing a bundle
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265
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diff changeset
266 Raise an exception to highlight the fact that no transaction was expected
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diff changeset
267 to be created"""
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diff changeset
268 raise TransactionUnavailable()
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diff changeset
269
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diff changeset
270 def processbundle(repo, unbundler, transactiongetter=_notransaction):
20889
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271 """This function process a bundle, apply effect to/from a repo
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272
20947
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diff changeset
273 It iterates over each part then searches for and uses the proper handling
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diff changeset
274 code to process the part. Parts are processed in order.
20889
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diff changeset
275
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276 This is very early version of this function that will be strongly reworked
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diff changeset
277 before final usage.
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278
20891
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diff changeset
279 Unknown Mandatory part will abort the process.
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280 """
20952
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diff changeset
281 op = bundleoperation(repo, transactiongetter)
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diff changeset
282 # todo:
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283 # - replace this is a init function soon.
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284 # - exception catching
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285 unbundler.params
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diff changeset
286 iterparts = unbundler.iterparts()
21019
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diff changeset
287 part = None
20892
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diff changeset
288 try:
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diff changeset
289 for part in iterparts:
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diff changeset
290 parttype = part.type
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diff changeset
291 # part key are matched lower case
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diff changeset
292 key = parttype.lower()
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diff changeset
293 try:
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diff changeset
294 handler = parthandlermapping[key]
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diff changeset
295 op.ui.debug('found a handler for part %r\n' % parttype)
20892
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diff changeset
296 except KeyError:
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diff changeset
297 if key != parttype: # mandatory parts
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diff changeset
298 # todo:
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diff changeset
299 # - use a more precise exception
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diff changeset
300 raise
20948
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diff changeset
301 op.ui.debug('ignoring unknown advisory part %r\n' % key)
21019
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diff changeset
302 # consuming the part
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diff changeset
303 part.read()
20892
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diff changeset
304 continue
21004
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parents: 21001
diff changeset
305
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diff changeset
306 # handler is called outside the above try block so that we don't
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parents: 21001
diff changeset
307 # risk catching KeyErrors from anything other than the
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Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21001
diff changeset
308 # parthandlermapping lookup (any KeyError raised by handler()
27ab4b8d2503 bundle2: comment to clarify why the handler call is where it is
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21001
diff changeset
309 # itself represents a defect of a different variety).
21131
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Pierre-Yves David <pierre-yves.david@fb.com>
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diff changeset
310 output = None
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Pierre-Yves David <pierre-yves.david@fb.com>
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diff changeset
311 if op.reply is not None:
21133
bef4a2adc532 bundle2: include stderr when capturing handlers output
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21131
diff changeset
312 op.ui.pushbuffer(error=True)
21131
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diff changeset
313 output = ''
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diff changeset
314 try:
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Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21130
diff changeset
315 handler(op, part)
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diff changeset
316 finally:
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diff changeset
317 if output is not None:
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diff changeset
318 output = op.ui.popbuffer()
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parents: 21130
diff changeset
319 if output:
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Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21130
diff changeset
320 outpart = bundlepart('output',
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parents: 21130
diff changeset
321 advisoryparams=[('in-reply-to',
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parents: 21130
diff changeset
322 str(part.id))],
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Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21130
diff changeset
323 data=output)
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Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21130
diff changeset
324 op.reply.addpart(outpart)
21019
3dc09f831a2e bundle2: lazy unbundle of part payload
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diff changeset
325 part.read()
20892
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diff changeset
326 except Exception:
21019
3dc09f831a2e bundle2: lazy unbundle of part payload
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21016
diff changeset
327 if part is not None:
3dc09f831a2e bundle2: lazy unbundle of part payload
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21016
diff changeset
328 # consume the bundle content
3dc09f831a2e bundle2: lazy unbundle of part payload
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21016
diff changeset
329 part.read()
20892
6fe95448596d bundle2: read the whole bundle from stream on abort
Pierre-Yves David <pierre-yves.david@fb.com>
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diff changeset
330 for part in iterparts:
21019
3dc09f831a2e bundle2: lazy unbundle of part payload
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21016
diff changeset
331 # consume the bundle content
3dc09f831a2e bundle2: lazy unbundle of part payload
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21016
diff changeset
332 part.read()
20892
6fe95448596d bundle2: read the whole bundle from stream on abort
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20891
diff changeset
333 raise
20949
571f2903ff1e bundle2: record processing results in the bundleoperation object
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20948
diff changeset
334 return op
20889
deed5edb72de bundle2: first version of a bundle processing
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parents: 20887
diff changeset
335
20801
9c5183cb9bca bundle2: very first version of a bundle2 bundler
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parents:
diff changeset
336 class bundle20(object):
9c5183cb9bca bundle2: very first version of a bundle2 bundler
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
diff changeset
337 """represent an outgoing bundle2 container
9c5183cb9bca bundle2: very first version of a bundle2 bundler
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
diff changeset
338
20856
8a6a86c9a5b5 bundle2: support bundling of empty part (with a type)
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20844
diff changeset
339 Use the `addparam` method to add stream level parameter. and `addpart` to
8a6a86c9a5b5 bundle2: support bundling of empty part (with a type)
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20844
diff changeset
340 populate it. Then call `getchunks` to retrieve all the binary chunks of
21024
7731a2281cf0 spelling: fixes from spell checker
Mads Kiilerich <madski@unity3d.com>
parents: 21020
diff changeset
341 data that compose the bundle2 container."""
20801
9c5183cb9bca bundle2: very first version of a bundle2 bundler
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
diff changeset
342
21134
2f8c4fa237f5 bundle2: adds a capabilities attribute on bundler20
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21133
diff changeset
343 def __init__(self, ui, capabilities=()):
20842
938718d72624 bundle2: print debug information during bundling
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20814
diff changeset
344 self.ui = ui
20801
9c5183cb9bca bundle2: very first version of a bundle2 bundler
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
diff changeset
345 self._params = []
9c5183cb9bca bundle2: very first version of a bundle2 bundler
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
diff changeset
346 self._parts = []
21134
2f8c4fa237f5 bundle2: adds a capabilities attribute on bundler20
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21133
diff changeset
347 self.capabilities = set(capabilities)
20801
9c5183cb9bca bundle2: very first version of a bundle2 bundler
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
diff changeset
348
20804
db9d3991d2c6 bundle2: support bundling simple parameter
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20803
diff changeset
349 def addparam(self, name, value=None):
db9d3991d2c6 bundle2: support bundling simple parameter
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20803
diff changeset
350 """add a stream level parameter"""
20813
8c74b3ce5b70 bundle2: refuse empty parameter name
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20812
diff changeset
351 if not name:
8c74b3ce5b70 bundle2: refuse empty parameter name
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20812
diff changeset
352 raise ValueError('empty parameter name')
20814
8532f5e1b9df bundle2: force the first char of parameter to be an letter.
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20813
diff changeset
353 if name[0] not in string.letters:
8532f5e1b9df bundle2: force the first char of parameter to be an letter.
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20813
diff changeset
354 raise ValueError('non letter first character: %r' % name)
20804
db9d3991d2c6 bundle2: support bundling simple parameter
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20803
diff changeset
355 self._params.append((name, value))
db9d3991d2c6 bundle2: support bundling simple parameter
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20803
diff changeset
356
20856
8a6a86c9a5b5 bundle2: support bundling of empty part (with a type)
Pierre-Yves David <pierre-yves.david@fb.com>
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diff changeset
357 def addpart(self, part):
8a6a86c9a5b5 bundle2: support bundling of empty part (with a type)
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20844
diff changeset
358 """add a new part to the bundle2 container
8a6a86c9a5b5 bundle2: support bundling of empty part (with a type)
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20844
diff changeset
359
21024
7731a2281cf0 spelling: fixes from spell checker
Mads Kiilerich <madski@unity3d.com>
parents: 21020
diff changeset
360 Parts contains the actual applicative payload."""
20995
e995d104c87f bundle2: add an integer id to part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20952
diff changeset
361 assert part.id is None
e995d104c87f bundle2: add an integer id to part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20952
diff changeset
362 part.id = len(self._parts) # very cheap counter
20856
8a6a86c9a5b5 bundle2: support bundling of empty part (with a type)
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20844
diff changeset
363 self._parts.append(part)
8a6a86c9a5b5 bundle2: support bundling of empty part (with a type)
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20844
diff changeset
364
20801
9c5183cb9bca bundle2: very first version of a bundle2 bundler
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
diff changeset
365 def getchunks(self):
20842
938718d72624 bundle2: print debug information during bundling
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20814
diff changeset
366 self.ui.debug('start emission of %s stream\n' % _magicstring)
20801
9c5183cb9bca bundle2: very first version of a bundle2 bundler
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
diff changeset
367 yield _magicstring
20804
db9d3991d2c6 bundle2: support bundling simple parameter
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20803
diff changeset
368 param = self._paramchunk()
20842
938718d72624 bundle2: print debug information during bundling
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20814
diff changeset
369 self.ui.debug('bundle parameter: %s\n' % param)
20804
db9d3991d2c6 bundle2: support bundling simple parameter
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20803
diff changeset
370 yield _pack(_fstreamparamsize, len(param))
db9d3991d2c6 bundle2: support bundling simple parameter
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20803
diff changeset
371 if param:
db9d3991d2c6 bundle2: support bundling simple parameter
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20803
diff changeset
372 yield param
db9d3991d2c6 bundle2: support bundling simple parameter
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20803
diff changeset
373
20856
8a6a86c9a5b5 bundle2: support bundling of empty part (with a type)
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20844
diff changeset
374 self.ui.debug('start of parts\n')
8a6a86c9a5b5 bundle2: support bundling of empty part (with a type)
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20844
diff changeset
375 for part in self._parts:
8a6a86c9a5b5 bundle2: support bundling of empty part (with a type)
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20844
diff changeset
376 self.ui.debug('bundle part: "%s"\n' % part.type)
8a6a86c9a5b5 bundle2: support bundling of empty part (with a type)
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20844
diff changeset
377 for chunk in part.getchunks():
8a6a86c9a5b5 bundle2: support bundling of empty part (with a type)
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20844
diff changeset
378 yield chunk
20842
938718d72624 bundle2: print debug information during bundling
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20814
diff changeset
379 self.ui.debug('end of bundle\n')
20801
9c5183cb9bca bundle2: very first version of a bundle2 bundler
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
diff changeset
380 yield '\0\0'
20802
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parents: 20801
diff changeset
381
20804
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diff changeset
382 def _paramchunk(self):
db9d3991d2c6 bundle2: support bundling simple parameter
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parents: 20803
diff changeset
383 """return a encoded version of all stream parameters"""
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parents: 20803
diff changeset
384 blocks = []
20809
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Pierre-Yves David <pierre-yves.david@fb.com>
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diff changeset
385 for par, value in self._params:
20811
9785c3f8f598 bundle2: urlquote stream parameter name and value
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20810
diff changeset
386 par = urllib.quote(par)
20809
b93bb639451a bundle2: support for bundling parameter value
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20808
diff changeset
387 if value is not None:
20811
9785c3f8f598 bundle2: urlquote stream parameter name and value
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20810
diff changeset
388 value = urllib.quote(value)
20809
b93bb639451a bundle2: support for bundling parameter value
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20808
diff changeset
389 par = '%s=%s' % (par, value)
b93bb639451a bundle2: support for bundling parameter value
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parents: 20808
diff changeset
390 blocks.append(par)
20804
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parents: 20803
diff changeset
391 return ' '.join(blocks)
db9d3991d2c6 bundle2: support bundling simple parameter
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parents: 20803
diff changeset
392
21013
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Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21005
diff changeset
393 class unpackermixin(object):
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parents: 21005
diff changeset
394 """A mixin to extract bytes and struct data from a stream"""
20802
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parents: 20801
diff changeset
395
21013
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diff changeset
396 def __init__(self, fp):
20802
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diff changeset
397 self._fp = fp
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Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20801
diff changeset
398
520df53ad26a bundle2: a very first version of bundle2 unbundler
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20801
diff changeset
399 def _unpack(self, format):
520df53ad26a bundle2: a very first version of bundle2 unbundler
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20801
diff changeset
400 """unpack this struct format from the stream"""
520df53ad26a bundle2: a very first version of bundle2 unbundler
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20801
diff changeset
401 data = self._readexact(struct.calcsize(format))
520df53ad26a bundle2: a very first version of bundle2 unbundler
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20801
diff changeset
402 return _unpack(format, data)
520df53ad26a bundle2: a very first version of bundle2 unbundler
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20801
diff changeset
403
520df53ad26a bundle2: a very first version of bundle2 unbundler
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20801
diff changeset
404 def _readexact(self, size):
520df53ad26a bundle2: a very first version of bundle2 unbundler
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20801
diff changeset
405 """read exactly <size> bytes from the stream"""
520df53ad26a bundle2: a very first version of bundle2 unbundler
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20801
diff changeset
406 return changegroup.readexactly(self._fp, size)
520df53ad26a bundle2: a very first version of bundle2 unbundler
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20801
diff changeset
407
21013
a813caca89b3 bundle2: extract stream/unpack logic in an unpackermixin
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21005
diff changeset
408
a813caca89b3 bundle2: extract stream/unpack logic in an unpackermixin
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21005
diff changeset
409 class unbundle20(unpackermixin):
a813caca89b3 bundle2: extract stream/unpack logic in an unpackermixin
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21005
diff changeset
410 """interpret a bundle2 stream
a813caca89b3 bundle2: extract stream/unpack logic in an unpackermixin
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21005
diff changeset
411
21129
07bcbf326c8d bundle2: use an official iterparts method to unbundle parts
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21066
diff changeset
412 This class is fed with a binary stream and yields parts through its
07bcbf326c8d bundle2: use an official iterparts method to unbundle parts
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21066
diff changeset
413 `iterparts` methods."""
21013
a813caca89b3 bundle2: extract stream/unpack logic in an unpackermixin
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21005
diff changeset
414
21066
5ecfe76d0d96 bundle2: make header reading optional
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21062
diff changeset
415 def __init__(self, ui, fp, header=None):
5ecfe76d0d96 bundle2: make header reading optional
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21062
diff changeset
416 """If header is specified, we do not read it out of the stream."""
21013
a813caca89b3 bundle2: extract stream/unpack logic in an unpackermixin
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21005
diff changeset
417 self.ui = ui
a813caca89b3 bundle2: extract stream/unpack logic in an unpackermixin
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21005
diff changeset
418 super(unbundle20, self).__init__(fp)
21066
5ecfe76d0d96 bundle2: make header reading optional
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21062
diff changeset
419 if header is None:
5ecfe76d0d96 bundle2: make header reading optional
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21062
diff changeset
420 header = self._readexact(4)
5ecfe76d0d96 bundle2: make header reading optional
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21062
diff changeset
421 magic, version = header[0:2], header[2:4]
5ecfe76d0d96 bundle2: make header reading optional
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21062
diff changeset
422 if magic != 'HG':
5ecfe76d0d96 bundle2: make header reading optional
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21062
diff changeset
423 raise util.Abort(_('not a Mercurial bundle'))
5ecfe76d0d96 bundle2: make header reading optional
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21062
diff changeset
424 if version != '20':
5ecfe76d0d96 bundle2: make header reading optional
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21062
diff changeset
425 raise util.Abort(_('unknown bundle version %s') % version)
21013
a813caca89b3 bundle2: extract stream/unpack logic in an unpackermixin
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21005
diff changeset
426 self.ui.debug('start processing of %s stream\n' % header)
a813caca89b3 bundle2: extract stream/unpack logic in an unpackermixin
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21005
diff changeset
427
20802
520df53ad26a bundle2: a very first version of bundle2 unbundler
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20801
diff changeset
428 @util.propertycache
520df53ad26a bundle2: a very first version of bundle2 unbundler
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20801
diff changeset
429 def params(self):
21024
7731a2281cf0 spelling: fixes from spell checker
Mads Kiilerich <madski@unity3d.com>
parents: 21020
diff changeset
430 """dictionary of stream level parameters"""
20843
0641b41b0b49 bundle2: print debug information during unbundling
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20842
diff changeset
431 self.ui.debug('reading bundle2 stream parameters\n')
20805
c5aaeca0cfbf bundle2: support for unbundling simple parameter
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20804
diff changeset
432 params = {}
c5aaeca0cfbf bundle2: support for unbundling simple parameter
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20804
diff changeset
433 paramssize = self._unpack(_fstreamparamsize)[0]
c5aaeca0cfbf bundle2: support for unbundling simple parameter
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20804
diff changeset
434 if paramssize:
c5aaeca0cfbf bundle2: support for unbundling simple parameter
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20804
diff changeset
435 for p in self._readexact(paramssize).split(' '):
20810
47293877b54c bundle2: support for unbundling parameter value
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20809
diff changeset
436 p = p.split('=', 1)
20812
e2f908773754 bundle2: urlunquote stream parameter name and value during unbundling
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20811
diff changeset
437 p = [urllib.unquote(i) for i in p]
20810
47293877b54c bundle2: support for unbundling parameter value
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20809
diff changeset
438 if len(p) < 2:
47293877b54c bundle2: support for unbundling parameter value
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20809
diff changeset
439 p.append(None)
20844
2631204d7305 bundle2: implement the mandatory/advisory logic for parameter
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20843
diff changeset
440 self._processparam(*p)
20810
47293877b54c bundle2: support for unbundling parameter value
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20809
diff changeset
441 params[p[0]] = p[1]
20805
c5aaeca0cfbf bundle2: support for unbundling simple parameter
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20804
diff changeset
442 return params
20802
520df53ad26a bundle2: a very first version of bundle2 unbundler
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20801
diff changeset
443
20844
2631204d7305 bundle2: implement the mandatory/advisory logic for parameter
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20843
diff changeset
444 def _processparam(self, name, value):
2631204d7305 bundle2: implement the mandatory/advisory logic for parameter
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20843
diff changeset
445 """process a parameter, applying its effect if needed
2631204d7305 bundle2: implement the mandatory/advisory logic for parameter
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20843
diff changeset
446
2631204d7305 bundle2: implement the mandatory/advisory logic for parameter
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20843
diff changeset
447 Parameter starting with a lower case letter are advisory and will be
2631204d7305 bundle2: implement the mandatory/advisory logic for parameter
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20843
diff changeset
448 ignored when unknown. Those starting with an upper case letter are
2631204d7305 bundle2: implement the mandatory/advisory logic for parameter
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20843
diff changeset
449 mandatory and will this function will raise a KeyError when unknown.
2631204d7305 bundle2: implement the mandatory/advisory logic for parameter
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20843
diff changeset
450
2631204d7305 bundle2: implement the mandatory/advisory logic for parameter
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20843
diff changeset
451 Note: no option are currently supported. Any input will be either
2631204d7305 bundle2: implement the mandatory/advisory logic for parameter
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20843
diff changeset
452 ignored or failing.
2631204d7305 bundle2: implement the mandatory/advisory logic for parameter
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20843
diff changeset
453 """
2631204d7305 bundle2: implement the mandatory/advisory logic for parameter
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20843
diff changeset
454 if not name:
2631204d7305 bundle2: implement the mandatory/advisory logic for parameter
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20843
diff changeset
455 raise ValueError('empty parameter name')
2631204d7305 bundle2: implement the mandatory/advisory logic for parameter
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20843
diff changeset
456 if name[0] not in string.letters:
2631204d7305 bundle2: implement the mandatory/advisory logic for parameter
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20843
diff changeset
457 raise ValueError('non letter first character: %r' % name)
2631204d7305 bundle2: implement the mandatory/advisory logic for parameter
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20843
diff changeset
458 # Some logic will be later added here to try to process the option for
2631204d7305 bundle2: implement the mandatory/advisory logic for parameter
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20843
diff changeset
459 # a dict of known parameter.
2631204d7305 bundle2: implement the mandatory/advisory logic for parameter
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20843
diff changeset
460 if name[0].islower():
2631204d7305 bundle2: implement the mandatory/advisory logic for parameter
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20843
diff changeset
461 self.ui.debug("ignoring unknown parameter %r\n" % name)
2631204d7305 bundle2: implement the mandatory/advisory logic for parameter
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20843
diff changeset
462 else:
2631204d7305 bundle2: implement the mandatory/advisory logic for parameter
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20843
diff changeset
463 raise KeyError(name)
2631204d7305 bundle2: implement the mandatory/advisory logic for parameter
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20843
diff changeset
464
2631204d7305 bundle2: implement the mandatory/advisory logic for parameter
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20843
diff changeset
465
21129
07bcbf326c8d bundle2: use an official iterparts method to unbundle parts
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21066
diff changeset
466 def iterparts(self):
20802
520df53ad26a bundle2: a very first version of bundle2 unbundler
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20801
diff changeset
467 """yield all parts contained in the stream"""
520df53ad26a bundle2: a very first version of bundle2 unbundler
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20801
diff changeset
468 # make sure param have been loaded
520df53ad26a bundle2: a very first version of bundle2 unbundler
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20801
diff changeset
469 self.params
20843
0641b41b0b49 bundle2: print debug information during unbundling
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20842
diff changeset
470 self.ui.debug('start extraction of bundle2 parts\n')
21014
a6246bba7b9e bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21013
diff changeset
471 headerblock = self._readpartheader()
a6246bba7b9e bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21013
diff changeset
472 while headerblock is not None:
a6246bba7b9e bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21013
diff changeset
473 part = unbundlepart(self.ui, headerblock, self._fp)
20802
520df53ad26a bundle2: a very first version of bundle2 unbundler
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20801
diff changeset
474 yield part
21014
a6246bba7b9e bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21013
diff changeset
475 headerblock = self._readpartheader()
20843
0641b41b0b49 bundle2: print debug information during unbundling
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20842
diff changeset
476 self.ui.debug('end of bundle2 stream\n')
20802
520df53ad26a bundle2: a very first version of bundle2 unbundler
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20801
diff changeset
477
21014
a6246bba7b9e bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21013
diff changeset
478 def _readpartheader(self):
a6246bba7b9e bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21013
diff changeset
479 """reads a part header size and return the bytes blob
20864
9a75d2559cff bundle2: support unbundling empty part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20856
diff changeset
480
21014
a6246bba7b9e bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21013
diff changeset
481 returns None if empty"""
20864
9a75d2559cff bundle2: support unbundling empty part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20856
diff changeset
482 headersize = self._unpack(_fpartheadersize)[0]
9a75d2559cff bundle2: support unbundling empty part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20856
diff changeset
483 self.ui.debug('part header size: %i\n' % headersize)
21014
a6246bba7b9e bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21013
diff changeset
484 if headersize:
a6246bba7b9e bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21013
diff changeset
485 return self._readexact(headersize)
a6246bba7b9e bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21013
diff changeset
486 return None
20864
9a75d2559cff bundle2: support unbundling empty part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20856
diff changeset
487
20802
520df53ad26a bundle2: a very first version of bundle2 unbundler
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20801
diff changeset
488
21005
3d38ebb586fe bundle2: rename part to bundlepart
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21004
diff changeset
489 class bundlepart(object):
20856
8a6a86c9a5b5 bundle2: support bundling of empty part (with a type)
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20844
diff changeset
490 """A bundle2 part contains application level payload
8a6a86c9a5b5 bundle2: support bundling of empty part (with a type)
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20844
diff changeset
491
8a6a86c9a5b5 bundle2: support bundling of empty part (with a type)
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20844
diff changeset
492 The part `type` is used to route the part to the application level
8a6a86c9a5b5 bundle2: support bundling of empty part (with a type)
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20844
diff changeset
493 handler.
8a6a86c9a5b5 bundle2: support bundling of empty part (with a type)
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20844
diff changeset
494 """
8a6a86c9a5b5 bundle2: support bundling of empty part (with a type)
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20844
diff changeset
495
20877
9e9e3a4e9261 bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20876
diff changeset
496 def __init__(self, parttype, mandatoryparams=(), advisoryparams=(),
9e9e3a4e9261 bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20876
diff changeset
497 data=''):
20995
e995d104c87f bundle2: add an integer id to part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20952
diff changeset
498 self.id = None
20856
8a6a86c9a5b5 bundle2: support bundling of empty part (with a type)
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20844
diff changeset
499 self.type = parttype
20864
9a75d2559cff bundle2: support unbundling empty part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20856
diff changeset
500 self.data = data
20877
9e9e3a4e9261 bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20876
diff changeset
501 self.mandatoryparams = mandatoryparams
9e9e3a4e9261 bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20876
diff changeset
502 self.advisoryparams = advisoryparams
20856
8a6a86c9a5b5 bundle2: support bundling of empty part (with a type)
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20844
diff changeset
503
8a6a86c9a5b5 bundle2: support bundling of empty part (with a type)
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20844
diff changeset
504 def getchunks(self):
20877
9e9e3a4e9261 bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20876
diff changeset
505 #### header
9e9e3a4e9261 bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20876
diff changeset
506 ## parttype
20856
8a6a86c9a5b5 bundle2: support bundling of empty part (with a type)
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20844
diff changeset
507 header = [_pack(_fparttypesize, len(self.type)),
20995
e995d104c87f bundle2: add an integer id to part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20952
diff changeset
508 self.type, _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
509 ]
20877
9e9e3a4e9261 bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20876
diff changeset
510 ## parameters
9e9e3a4e9261 bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20876
diff changeset
511 # count
9e9e3a4e9261 bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20876
diff changeset
512 manpar = self.mandatoryparams
9e9e3a4e9261 bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20876
diff changeset
513 advpar = self.advisoryparams
9e9e3a4e9261 bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20876
diff changeset
514 header.append(_pack(_fpartparamcount, len(manpar), len(advpar)))
9e9e3a4e9261 bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20876
diff changeset
515 # size
9e9e3a4e9261 bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20876
diff changeset
516 parsizes = []
9e9e3a4e9261 bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20876
diff changeset
517 for key, value in manpar:
9e9e3a4e9261 bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20876
diff changeset
518 parsizes.append(len(key))
9e9e3a4e9261 bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20876
diff changeset
519 parsizes.append(len(value))
9e9e3a4e9261 bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20876
diff changeset
520 for key, value in advpar:
9e9e3a4e9261 bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20876
diff changeset
521 parsizes.append(len(key))
9e9e3a4e9261 bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20876
diff changeset
522 parsizes.append(len(value))
9e9e3a4e9261 bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20876
diff changeset
523 paramsizes = _pack(_makefpartparamsizes(len(parsizes) / 2), *parsizes)
9e9e3a4e9261 bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20876
diff changeset
524 header.append(paramsizes)
9e9e3a4e9261 bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20876
diff changeset
525 # key, value
9e9e3a4e9261 bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20876
diff changeset
526 for key, value in manpar:
9e9e3a4e9261 bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20876
diff changeset
527 header.append(key)
9e9e3a4e9261 bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20876
diff changeset
528 header.append(value)
9e9e3a4e9261 bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20876
diff changeset
529 for key, value in advpar:
9e9e3a4e9261 bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20876
diff changeset
530 header.append(key)
9e9e3a4e9261 bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20876
diff changeset
531 header.append(value)
9e9e3a4e9261 bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20876
diff changeset
532 ## 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
533 headerchunk = ''.join(header)
8a6a86c9a5b5 bundle2: support bundling of empty part (with a type)
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20844
diff changeset
534 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
535 yield headerchunk
20877
9e9e3a4e9261 bundle2: part params
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20876
diff changeset
536 ## payload
21000
4cae06ae1562 bundle2: extract a _payloadchunks method for part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20998
diff changeset
537 for chunk in self._payloadchunks():
4cae06ae1562 bundle2: extract a _payloadchunks method for part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20998
diff changeset
538 yield _pack(_fpayloadsize, len(chunk))
4cae06ae1562 bundle2: extract a _payloadchunks method for part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20998
diff changeset
539 yield chunk
4cae06ae1562 bundle2: extract a _payloadchunks method for part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20998
diff changeset
540 # end of payload
4cae06ae1562 bundle2: extract a _payloadchunks method for part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20998
diff changeset
541 yield _pack(_fpayloadsize, 0)
4cae06ae1562 bundle2: extract a _payloadchunks method for part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20998
diff changeset
542
4cae06ae1562 bundle2: extract a _payloadchunks method for part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20998
diff changeset
543 def _payloadchunks(self):
4cae06ae1562 bundle2: extract a _payloadchunks method for part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20998
diff changeset
544 """yield chunks of a the part payload
4cae06ae1562 bundle2: extract a _payloadchunks method for part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20998
diff changeset
545
4cae06ae1562 bundle2: extract a _payloadchunks method for part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20998
diff changeset
546 Exists to handle the different methods to provide data to a part."""
20876
ddd56f3eb786 bundle2: support for bundling and unbundling payload
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20864
diff changeset
547 # we only support fixed size data now.
ddd56f3eb786 bundle2: support for bundling and unbundling payload
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20864
diff changeset
548 # This will be improved in the future.
21001
c93bb6a08fa1 bundle2: support chunk iterator as part data
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21000
diff changeset
549 if util.safehasattr(self.data, 'next'):
c93bb6a08fa1 bundle2: support chunk iterator as part data
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21000
diff changeset
550 buff = util.chunkbuffer(self.data)
c93bb6a08fa1 bundle2: support chunk iterator as part data
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21000
diff changeset
551 chunk = buff.read(preferedchunksize)
c93bb6a08fa1 bundle2: support chunk iterator as part data
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21000
diff changeset
552 while chunk:
c93bb6a08fa1 bundle2: support chunk iterator as part data
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21000
diff changeset
553 yield chunk
c93bb6a08fa1 bundle2: support chunk iterator as part data
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21000
diff changeset
554 chunk = buff.read(preferedchunksize)
c93bb6a08fa1 bundle2: support chunk iterator as part data
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21000
diff changeset
555 elif len(self.data):
20876
ddd56f3eb786 bundle2: support for bundling and unbundling payload
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20864
diff changeset
556 yield self.data
20802
520df53ad26a bundle2: a very first version of bundle2 unbundler
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20801
diff changeset
557
21014
a6246bba7b9e bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21013
diff changeset
558 class unbundlepart(unpackermixin):
a6246bba7b9e bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21013
diff changeset
559 """a bundle part read from a bundle"""
a6246bba7b9e bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21013
diff changeset
560
a6246bba7b9e bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21013
diff changeset
561 def __init__(self, ui, header, fp):
a6246bba7b9e bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21013
diff changeset
562 super(unbundlepart, self).__init__(fp)
a6246bba7b9e bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21013
diff changeset
563 self.ui = ui
a6246bba7b9e bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21013
diff changeset
564 # unbundle state attr
a6246bba7b9e bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21013
diff changeset
565 self._headerdata = header
21015
14dd49260246 bundle2: move the fromheader closure into the class itself
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21014
diff changeset
566 self._headeroffset = 0
21019
3dc09f831a2e bundle2: lazy unbundle of part payload
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21016
diff changeset
567 self._initialized = False
3dc09f831a2e bundle2: lazy unbundle of part payload
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21016
diff changeset
568 self.consumed = False
21014
a6246bba7b9e bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21013
diff changeset
569 # part data
a6246bba7b9e bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21013
diff changeset
570 self.id = None
a6246bba7b9e bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21013
diff changeset
571 self.type = None
a6246bba7b9e bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21013
diff changeset
572 self.mandatoryparams = None
a6246bba7b9e bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21013
diff changeset
573 self.advisoryparams = None
21019
3dc09f831a2e bundle2: lazy unbundle of part payload
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21016
diff changeset
574 self._payloadstream = None
3dc09f831a2e bundle2: lazy unbundle of part payload
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21016
diff changeset
575 self._readheader()
21014
a6246bba7b9e bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21013
diff changeset
576
21015
14dd49260246 bundle2: move the fromheader closure into the class itself
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21014
diff changeset
577 def _fromheader(self, size):
14dd49260246 bundle2: move the fromheader closure into the class itself
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21014
diff changeset
578 """return the next <size> byte from the header"""
14dd49260246 bundle2: move the fromheader closure into the class itself
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21014
diff changeset
579 offset = self._headeroffset
14dd49260246 bundle2: move the fromheader closure into the class itself
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21014
diff changeset
580 data = self._headerdata[offset:(offset + size)]
21019
3dc09f831a2e bundle2: lazy unbundle of part payload
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21016
diff changeset
581 self._headeroffset = offset + size
21015
14dd49260246 bundle2: move the fromheader closure into the class itself
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21014
diff changeset
582 return data
14dd49260246 bundle2: move the fromheader closure into the class itself
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21014
diff changeset
583
21016
b477afb1c81e bundle2: move unpackheader closure into the class
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21015
diff changeset
584 def _unpackheader(self, format):
b477afb1c81e bundle2: move unpackheader closure into the class
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21015
diff changeset
585 """read given format from header
b477afb1c81e bundle2: move unpackheader closure into the class
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21015
diff changeset
586
b477afb1c81e bundle2: move unpackheader closure into the class
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21015
diff changeset
587 This automatically compute the size of the format to read."""
b477afb1c81e bundle2: move unpackheader closure into the class
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21015
diff changeset
588 data = self._fromheader(struct.calcsize(format))
b477afb1c81e bundle2: move unpackheader closure into the class
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21015
diff changeset
589 return _unpack(format, data)
b477afb1c81e bundle2: move unpackheader closure into the class
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21015
diff changeset
590
21019
3dc09f831a2e bundle2: lazy unbundle of part payload
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21016
diff changeset
591 def _readheader(self):
21014
a6246bba7b9e bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21013
diff changeset
592 """read the header and setup the object"""
21016
b477afb1c81e bundle2: move unpackheader closure into the class
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21015
diff changeset
593 typesize = self._unpackheader(_fparttypesize)[0]
21015
14dd49260246 bundle2: move the fromheader closure into the class itself
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21014
diff changeset
594 self.type = self._fromheader(typesize)
21014
a6246bba7b9e bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21013
diff changeset
595 self.ui.debug('part type: "%s"\n' % self.type)
21016
b477afb1c81e bundle2: move unpackheader closure into the class
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21015
diff changeset
596 self.id = self._unpackheader(_fpartid)[0]
21014
a6246bba7b9e bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21013
diff changeset
597 self.ui.debug('part id: "%s"\n' % self.id)
a6246bba7b9e bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21013
diff changeset
598 ## reading parameters
a6246bba7b9e bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21013
diff changeset
599 # param count
21016
b477afb1c81e bundle2: move unpackheader closure into the class
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21015
diff changeset
600 mancount, advcount = self._unpackheader(_fpartparamcount)
21014
a6246bba7b9e bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21013
diff changeset
601 self.ui.debug('part parameters: %i\n' % (mancount + advcount))
a6246bba7b9e bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21013
diff changeset
602 # param size
21016
b477afb1c81e bundle2: move unpackheader closure into the class
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21015
diff changeset
603 fparamsizes = _makefpartparamsizes(mancount + advcount)
b477afb1c81e bundle2: move unpackheader closure into the class
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21015
diff changeset
604 paramsizes = self._unpackheader(fparamsizes)
21014
a6246bba7b9e bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21013
diff changeset
605 # make it a list of couple again
a6246bba7b9e bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21013
diff changeset
606 paramsizes = zip(paramsizes[::2], paramsizes[1::2])
a6246bba7b9e bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21013
diff changeset
607 # split mandatory from advisory
a6246bba7b9e bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21013
diff changeset
608 mansizes = paramsizes[:mancount]
a6246bba7b9e bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21013
diff changeset
609 advsizes = paramsizes[mancount:]
a6246bba7b9e bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21013
diff changeset
610 # retrive param value
a6246bba7b9e bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21013
diff changeset
611 manparams = []
a6246bba7b9e bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21013
diff changeset
612 for key, value in mansizes:
21015
14dd49260246 bundle2: move the fromheader closure into the class itself
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21014
diff changeset
613 manparams.append((self._fromheader(key), self._fromheader(value)))
21014
a6246bba7b9e bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21013
diff changeset
614 advparams = []
a6246bba7b9e bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21013
diff changeset
615 for key, value in advsizes:
21015
14dd49260246 bundle2: move the fromheader closure into the class itself
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21014
diff changeset
616 advparams.append((self._fromheader(key), self._fromheader(value)))
21014
a6246bba7b9e bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21013
diff changeset
617 self.mandatoryparams = manparams
a6246bba7b9e bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21013
diff changeset
618 self.advisoryparams = advparams
a6246bba7b9e bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21013
diff changeset
619 ## part payload
21019
3dc09f831a2e bundle2: lazy unbundle of part payload
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21016
diff changeset
620 def payloadchunks():
21014
a6246bba7b9e bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21013
diff changeset
621 payloadsize = self._unpack(_fpayloadsize)[0]
a6246bba7b9e bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21013
diff changeset
622 self.ui.debug('payload chunk size: %i\n' % payloadsize)
21019
3dc09f831a2e bundle2: lazy unbundle of part payload
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21016
diff changeset
623 while payloadsize:
3dc09f831a2e bundle2: lazy unbundle of part payload
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21016
diff changeset
624 yield self._readexact(payloadsize)
3dc09f831a2e bundle2: lazy unbundle of part payload
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21016
diff changeset
625 payloadsize = self._unpack(_fpayloadsize)[0]
3dc09f831a2e bundle2: lazy unbundle of part payload
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21016
diff changeset
626 self.ui.debug('payload chunk size: %i\n' % payloadsize)
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parents: 21016
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627 self._payloadstream = util.chunkbuffer(payloadchunks())
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Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21016
diff changeset
628 # we read the data, tell it
3dc09f831a2e bundle2: lazy unbundle of part payload
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21016
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629 self._initialized = True
3dc09f831a2e bundle2: lazy unbundle of part payload
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21016
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630
3dc09f831a2e bundle2: lazy unbundle of part payload
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21016
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631 def read(self, size=None):
3dc09f831a2e bundle2: lazy unbundle of part payload
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21016
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632 """read payload data"""
3dc09f831a2e bundle2: lazy unbundle of part payload
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21016
diff changeset
633 if not self._initialized:
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Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21016
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634 self._readheader()
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Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21016
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635 if size is None:
3dc09f831a2e bundle2: lazy unbundle of part payload
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21016
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636 data = self._payloadstream.read()
3dc09f831a2e bundle2: lazy unbundle of part payload
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21016
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637 else:
3dc09f831a2e bundle2: lazy unbundle of part payload
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21016
diff changeset
638 data = self._payloadstream.read(size)
3dc09f831a2e bundle2: lazy unbundle of part payload
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21016
diff changeset
639 if size is None or len(data) < size:
3dc09f831a2e bundle2: lazy unbundle of part payload
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21016
diff changeset
640 self.consumed = True
3dc09f831a2e bundle2: lazy unbundle of part payload
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21016
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641 return data
3dc09f831a2e bundle2: lazy unbundle of part payload
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21016
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642
21014
a6246bba7b9e bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21013
diff changeset
643
20950
c7ceae0faf69 bundle2: first crude version of bundling changeset with bundle2
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20949
diff changeset
644 @parthandler('changegroup')
20998
93a3c5b58635 bundle2: use reply part to return result of addchangegroup
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20997
diff changeset
645 def handlechangegroup(op, inpart):
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c7ceae0faf69 bundle2: first crude version of bundling changeset with bundle2
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20949
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646 """apply a changegroup part on the repo
c7ceae0faf69 bundle2: first crude version of bundling changeset with bundle2
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20949
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647
c7ceae0faf69 bundle2: first crude version of bundling changeset with bundle2
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20949
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648 This is a very early implementation that will massive rework before being
c7ceae0faf69 bundle2: first crude version of bundling changeset with bundle2
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20949
diff changeset
649 inflicted to any end-user.
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Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20949
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650 """
20952
b24ee5076b94 bundle2: make it possible have a global transaction for the unbundling
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20950
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651 # Make sure we trigger a transaction creation
b24ee5076b94 bundle2: make it possible have a global transaction for the unbundling
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20950
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652 #
b24ee5076b94 bundle2: make it possible have a global transaction for the unbundling
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20950
diff changeset
653 # The addchangegroup function will get a transaction object by itself, but
b24ee5076b94 bundle2: make it possible have a global transaction for the unbundling
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20950
diff changeset
654 # we need to make sure we trigger the creation of a transaction object used
b24ee5076b94 bundle2: make it possible have a global transaction for the unbundling
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20950
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655 # for the whole processing scope.
b24ee5076b94 bundle2: make it possible have a global transaction for the unbundling
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20950
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656 op.gettransaction()
21062
e7c0a65a5c9c bundle2: use headerless HG10UN stream in changegroup
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21060
diff changeset
657 cg = changegroup.unbundle10(inpart, 'UN')
20950
c7ceae0faf69 bundle2: first crude version of bundling changeset with bundle2
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20949
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658 ret = changegroup.addchangegroup(op.repo, cg, 'bundle2', 'bundle2')
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Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20949
diff changeset
659 op.records.add('changegroup', {'return': ret})
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93a3c5b58635 bundle2: use reply part to return result of addchangegroup
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20997
diff changeset
660 if op.reply is not None:
93a3c5b58635 bundle2: use reply part to return result of addchangegroup
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20997
diff changeset
661 # This is definitly not the final form of this
93a3c5b58635 bundle2: use reply part to return result of addchangegroup
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20997
diff changeset
662 # return. But one need to start somewhere.
21014
a6246bba7b9e bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21013
diff changeset
663 part = bundlepart('reply:changegroup', (),
a6246bba7b9e bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21013
diff changeset
664 [('in-reply-to', str(inpart.id)),
a6246bba7b9e bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21013
diff changeset
665 ('return', '%i' % ret)])
a6246bba7b9e bundle2: add an unbundle part responsible from unbundling part
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21013
diff changeset
666 op.reply.addpart(part)
21019
3dc09f831a2e bundle2: lazy unbundle of part payload
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parents: 21016
diff changeset
667 assert not inpart.read()
20950
c7ceae0faf69 bundle2: first crude version of bundling changeset with bundle2
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parents: 20949
diff changeset
668
20998
93a3c5b58635 bundle2: use reply part to return result of addchangegroup
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20997
diff changeset
669 @parthandler('reply:changegroup')
93a3c5b58635 bundle2: use reply part to return result of addchangegroup
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20997
diff changeset
670 def handlechangegroup(op, inpart):
93a3c5b58635 bundle2: use reply part to return result of addchangegroup
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20997
diff changeset
671 p = dict(inpart.advisoryparams)
93a3c5b58635 bundle2: use reply part to return result of addchangegroup
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20997
diff changeset
672 ret = int(p['return'])
93a3c5b58635 bundle2: use reply part to return result of addchangegroup
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parents: 20997
diff changeset
673 op.records.add('changegroup', {'return': ret}, int(p['in-reply-to']))
20950
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Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20949
diff changeset
674
21060
0bea9db7543b bundle2: add a "check:heads" handler
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21024
diff changeset
675 @parthandler('check:heads')
0bea9db7543b bundle2: add a "check:heads" handler
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21024
diff changeset
676 def handlechangegroup(op, inpart):
0bea9db7543b bundle2: add a "check:heads" handler
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21024
diff changeset
677 """check that head of the repo did not change
0bea9db7543b bundle2: add a "check:heads" handler
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21024
diff changeset
678
0bea9db7543b bundle2: add a "check:heads" handler
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21024
diff changeset
679 This is used to detect a push race when using unbundle.
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Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21024
diff changeset
680 This replaces the "heads" argument of unbundle."""
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Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21024
diff changeset
681 h = inpart.read(20)
0bea9db7543b bundle2: add a "check:heads" handler
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21024
diff changeset
682 heads = []
0bea9db7543b bundle2: add a "check:heads" handler
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21024
diff changeset
683 while len(h) == 20:
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Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21024
diff changeset
684 heads.append(h)
0bea9db7543b bundle2: add a "check:heads" handler
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21024
diff changeset
685 h = inpart.read(20)
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Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21024
diff changeset
686 assert not h
0bea9db7543b bundle2: add a "check:heads" handler
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21024
diff changeset
687 if heads != op.repo.heads():
0bea9db7543b bundle2: add a "check:heads" handler
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21024
diff changeset
688 raise exchange.PushRaced()
21130
1ff06386217f bundle2: introduce `replycaps` part for on-demand reply
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21129
diff changeset
689
21131
b7435117d951 bundle2: capture remote stdout while unbundling
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21130
diff changeset
690 @parthandler('output')
b7435117d951 bundle2: capture remote stdout while unbundling
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21130
diff changeset
691 def handleoutput(op, inpart):
b7435117d951 bundle2: capture remote stdout while unbundling
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21130
diff changeset
692 """forward output captured on the server to the client"""
b7435117d951 bundle2: capture remote stdout while unbundling
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21130
diff changeset
693 for line in inpart.read().splitlines():
b7435117d951 bundle2: capture remote stdout while unbundling
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21130
diff changeset
694 op.ui.write(('remote: %s\n' % line))
b7435117d951 bundle2: capture remote stdout while unbundling
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21130
diff changeset
695
21130
1ff06386217f bundle2: introduce `replycaps` part for on-demand reply
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21129
diff changeset
696 @parthandler('replycaps')
1ff06386217f bundle2: introduce `replycaps` part for on-demand reply
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21129
diff changeset
697 def handlereplycaps(op, inpart):
1ff06386217f bundle2: introduce `replycaps` part for on-demand reply
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21129
diff changeset
698 """Notify that a reply bundle should be created
1ff06386217f bundle2: introduce `replycaps` part for on-demand reply
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21129
diff changeset
699
1ff06386217f bundle2: introduce `replycaps` part for on-demand reply
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21129
diff changeset
700 Will convey bundle capability at some point too."""
1ff06386217f bundle2: introduce `replycaps` part for on-demand reply
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21129
diff changeset
701 if op.reply is None:
1ff06386217f bundle2: introduce `replycaps` part for on-demand reply
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21129
diff changeset
702 op.reply = bundle20(op.ui)
21131
b7435117d951 bundle2: capture remote stdout while unbundling
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21130
diff changeset
703