Mercurial > hg
annotate mercurial/changegroup.py @ 38974:4f06e0360bad
changegroup: restore original behavior of _nextclrevtolocalrev
0548f696795b accidentally changed the behavior of cgpacker._close().
The old behavior moved _nextclrevtolocalrev to _clrevtolocalrev only
when _nextclrevtolocalrev was present and then removed
_nextclrevtolocalrev. The bad behavior performed this move
then cleared _clrevtolocalrev because it was the same object as
_nextclrevtolocalrev.
This commit restores the previous behavior.
Surprisingly, no tests changed as a result of this bad logic. I'm
not sure why.
Differential Revision: https://phab.mercurial-scm.org/D4155
author | Gregory Szorc <gregory.szorc@gmail.com> |
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date | Tue, 07 Aug 2018 10:24:49 -0700 |
parents | 9134c4e46084 |
children | 87b737b78bd0 |
rev | line source |
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1 # changegroup.py - Mercurial changegroup manipulation functions |
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2 # |
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3 # Copyright 2006 Matt Mackall <mpm@selenic.com> |
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4 # |
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5 # This software may be used and distributed according to the terms of the |
10263 | 6 # GNU General Public License version 2 or any later version. |
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7 |
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8 from __future__ import absolute_import |
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9 |
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10 import os |
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11 import struct |
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12 import weakref |
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13 |
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14 from .i18n import _ |
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15 from .node import ( |
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16 hex, |
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17 nullid, |
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18 nullrev, |
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19 short, |
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20 ) |
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21 |
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22 from .thirdparty import ( |
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23 attr, |
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24 ) |
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25 |
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26 from . import ( |
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27 dagutil, |
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28 error, |
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29 manifest, |
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30 match as matchmod, |
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31 mdiff, |
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32 phases, |
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33 pycompat, |
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34 repository, |
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35 revlog, |
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36 util, |
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37 ) |
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38 |
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39 from .utils import ( |
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40 stringutil, |
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41 ) |
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42 |
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43 _CHANGEGROUPV1_DELTA_HEADER = struct.Struct("20s20s20s20s") |
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44 _CHANGEGROUPV2_DELTA_HEADER = struct.Struct("20s20s20s20s20s") |
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45 _CHANGEGROUPV3_DELTA_HEADER = struct.Struct(">20s20s20s20s20sH") |
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46 |
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47 LFS_REQUIREMENT = 'lfs' |
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48 |
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49 readexactly = util.readexactly |
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50 |
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51 def getchunk(stream): |
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52 """return the next chunk from stream as a string""" |
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53 d = readexactly(stream, 4) |
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54 l = struct.unpack(">l", d)[0] |
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55 if l <= 4: |
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56 if l: |
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57 raise error.Abort(_("invalid chunk length %d") % l) |
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58 return "" |
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59 return readexactly(stream, l - 4) |
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60 |
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61 def chunkheader(length): |
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62 """return a changegroup chunk header (string)""" |
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63 return struct.pack(">l", length + 4) |
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64 |
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65 def closechunk(): |
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66 """return a changegroup chunk header (string) for a zero-length chunk""" |
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67 return struct.pack(">l", 0) |
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68 |
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69 def writechunks(ui, chunks, filename, vfs=None): |
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70 """Write chunks to a file and return its filename. |
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71 |
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72 The stream is assumed to be a bundle file. |
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73 Existing files will not be overwritten. |
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74 If no filename is specified, a temporary file is created. |
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75 """ |
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76 fh = None |
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77 cleanup = None |
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78 try: |
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79 if filename: |
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80 if vfs: |
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81 fh = vfs.open(filename, "wb") |
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82 else: |
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83 # Increase default buffer size because default is usually |
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84 # small (4k is common on Linux). |
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85 fh = open(filename, "wb", 131072) |
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86 else: |
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87 fd, filename = pycompat.mkstemp(prefix="hg-bundle-", suffix=".hg") |
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88 fh = os.fdopen(fd, r"wb") |
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89 cleanup = filename |
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90 for c in chunks: |
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91 fh.write(c) |
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92 cleanup = None |
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93 return filename |
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94 finally: |
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95 if fh is not None: |
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96 fh.close() |
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97 if cleanup is not None: |
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98 if filename and vfs: |
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99 vfs.unlink(cleanup) |
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100 else: |
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101 os.unlink(cleanup) |
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102 |
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103 class cg1unpacker(object): |
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104 """Unpacker for cg1 changegroup streams. |
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105 |
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106 A changegroup unpacker handles the framing of the revision data in |
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107 the wire format. Most consumers will want to use the apply() |
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108 method to add the changes from the changegroup to a repository. |
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109 |
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110 If you're forwarding a changegroup unmodified to another consumer, |
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111 use getchunks(), which returns an iterator of changegroup |
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112 chunks. This is mostly useful for cases where you need to know the |
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113 data stream has ended by observing the end of the changegroup. |
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114 |
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115 deltachunk() is useful only if you're applying delta data. Most |
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116 consumers should prefer apply() instead. |
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117 |
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118 A few other public methods exist. Those are used only for |
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119 bundlerepo and some debug commands - their use is discouraged. |
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120 """ |
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121 deltaheader = _CHANGEGROUPV1_DELTA_HEADER |
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122 deltaheadersize = deltaheader.size |
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123 version = '01' |
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124 _grouplistcount = 1 # One list of files after the manifests |
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125 |
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126 def __init__(self, fh, alg, extras=None): |
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127 if alg is None: |
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128 alg = 'UN' |
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129 if alg not in util.compengines.supportedbundletypes: |
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130 raise error.Abort(_('unknown stream compression type: %s') |
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131 % alg) |
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132 if alg == 'BZ': |
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133 alg = '_truncatedBZ' |
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134 |
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135 compengine = util.compengines.forbundletype(alg) |
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136 self._stream = compengine.decompressorreader(fh) |
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137 self._type = alg |
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138 self.extras = extras or {} |
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139 self.callback = None |
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140 |
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141 # These methods (compressed, read, seek, tell) all appear to only |
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142 # be used by bundlerepo, but it's a little hard to tell. |
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143 def compressed(self): |
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144 return self._type is not None and self._type != 'UN' |
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145 def read(self, l): |
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146 return self._stream.read(l) |
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147 def seek(self, pos): |
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148 return self._stream.seek(pos) |
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149 def tell(self): |
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150 return self._stream.tell() |
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151 def close(self): |
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152 return self._stream.close() |
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153 |
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154 def _chunklength(self): |
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155 d = readexactly(self._stream, 4) |
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156 l = struct.unpack(">l", d)[0] |
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157 if l <= 4: |
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158 if l: |
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159 raise error.Abort(_("invalid chunk length %d") % l) |
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160 return 0 |
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161 if self.callback: |
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162 self.callback() |
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163 return l - 4 |
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164 |
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165 def changelogheader(self): |
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166 """v10 does not have a changelog header chunk""" |
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167 return {} |
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168 |
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169 def manifestheader(self): |
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170 """v10 does not have a manifest header chunk""" |
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171 return {} |
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172 |
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173 def filelogheader(self): |
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174 """return the header of the filelogs chunk, v10 only has the filename""" |
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175 l = self._chunklength() |
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176 if not l: |
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177 return {} |
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178 fname = readexactly(self._stream, l) |
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179 return {'filename': fname} |
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180 |
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181 def _deltaheader(self, headertuple, prevnode): |
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182 node, p1, p2, cs = headertuple |
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183 if prevnode is None: |
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184 deltabase = p1 |
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185 else: |
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186 deltabase = prevnode |
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187 flags = 0 |
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188 return node, p1, p2, deltabase, cs, flags |
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189 |
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190 def deltachunk(self, prevnode): |
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191 l = self._chunklength() |
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192 if not l: |
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193 return {} |
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194 headerdata = readexactly(self._stream, self.deltaheadersize) |
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195 header = self.deltaheader.unpack(headerdata) |
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196 delta = readexactly(self._stream, l - self.deltaheadersize) |
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197 node, p1, p2, deltabase, cs, flags = self._deltaheader(header, prevnode) |
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198 return (node, p1, p2, cs, deltabase, delta, flags) |
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199 |
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200 def getchunks(self): |
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201 """returns all the chunks contains in the bundle |
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202 |
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203 Used when you need to forward the binary stream to a file or another |
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204 network API. To do so, it parse the changegroup data, otherwise it will |
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205 block in case of sshrepo because it don't know the end of the stream. |
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206 """ |
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207 # For changegroup 1 and 2, we expect 3 parts: changelog, manifestlog, |
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208 # and a list of filelogs. For changegroup 3, we expect 4 parts: |
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209 # changelog, manifestlog, a list of tree manifestlogs, and a list of |
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210 # filelogs. |
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211 # |
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212 # Changelog and manifestlog parts are terminated with empty chunks. The |
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213 # tree and file parts are a list of entry sections. Each entry section |
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214 # is a series of chunks terminating in an empty chunk. The list of these |
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215 # entry sections is terminated in yet another empty chunk, so we know |
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216 # we've reached the end of the tree/file list when we reach an empty |
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217 # chunk that was proceeded by no non-empty chunks. |
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218 |
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219 parts = 0 |
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220 while parts < 2 + self._grouplistcount: |
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221 noentries = True |
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222 while True: |
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223 chunk = getchunk(self) |
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224 if not chunk: |
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225 # The first two empty chunks represent the end of the |
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226 # changelog and the manifestlog portions. The remaining |
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227 # empty chunks represent either A) the end of individual |
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228 # tree or file entries in the file list, or B) the end of |
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229 # the entire list. It's the end of the entire list if there |
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230 # were no entries (i.e. noentries is True). |
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231 if parts < 2: |
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232 parts += 1 |
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233 elif noentries: |
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234 parts += 1 |
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235 break |
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236 noentries = False |
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237 yield chunkheader(len(chunk)) |
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238 pos = 0 |
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239 while pos < len(chunk): |
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240 next = pos + 2**20 |
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241 yield chunk[pos:next] |
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242 pos = next |
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243 yield closechunk() |
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244 |
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245 def _unpackmanifests(self, repo, revmap, trp, prog): |
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246 self.callback = prog.increment |
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247 # no need to check for empty manifest group here: |
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248 # if the result of the merge of 1 and 2 is the same in 3 and 4, |
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249 # no new manifest will be created and the manifest group will |
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250 # be empty during the pull |
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251 self.manifestheader() |
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252 deltas = self.deltaiter() |
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253 repo.manifestlog.addgroup(deltas, revmap, trp) |
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254 prog.complete() |
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255 self.callback = None |
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256 |
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257 def apply(self, repo, tr, srctype, url, targetphase=phases.draft, |
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258 expectedtotal=None): |
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259 """Add the changegroup returned by source.read() to this repo. |
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260 srctype is a string like 'push', 'pull', or 'unbundle'. url is |
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261 the URL of the repo where this changegroup is coming from. |
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262 |
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263 Return an integer summarizing the change to this repo: |
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264 - nothing changed or no source: 0 |
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265 - more heads than before: 1+added heads (2..n) |
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266 - fewer heads than before: -1-removed heads (-2..-n) |
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267 - number of heads stays the same: 1 |
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268 """ |
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269 repo = repo.unfiltered() |
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270 def csmap(x): |
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271 repo.ui.debug("add changeset %s\n" % short(x)) |
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272 return len(cl) |
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273 |
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274 def revmap(x): |
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275 return cl.rev(x) |
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276 |
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277 changesets = files = revisions = 0 |
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278 |
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279 try: |
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280 # The transaction may already carry source information. In this |
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281 # case we use the top level data. We overwrite the argument |
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282 # because we need to use the top level value (if they exist) |
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283 # in this function. |
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284 srctype = tr.hookargs.setdefault('source', srctype) |
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285 url = tr.hookargs.setdefault('url', url) |
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286 repo.hook('prechangegroup', |
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287 throw=True, **pycompat.strkwargs(tr.hookargs)) |
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288 |
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289 # write changelog data to temp files so concurrent readers |
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290 # will not see an inconsistent view |
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291 cl = repo.changelog |
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292 cl.delayupdate(tr) |
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293 oldheads = set(cl.heads()) |
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294 |
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295 trp = weakref.proxy(tr) |
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296 # pull off the changeset group |
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297 repo.ui.status(_("adding changesets\n")) |
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298 clstart = len(cl) |
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299 progress = repo.ui.makeprogress(_('changesets'), unit=_('chunks'), |
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300 total=expectedtotal) |
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301 self.callback = progress.increment |
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302 |
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303 efiles = set() |
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304 def onchangelog(cl, node): |
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305 efiles.update(cl.readfiles(node)) |
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306 |
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307 self.changelogheader() |
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308 deltas = self.deltaiter() |
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309 cgnodes = cl.addgroup(deltas, csmap, trp, addrevisioncb=onchangelog) |
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310 efiles = len(efiles) |
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311 |
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312 if not cgnodes: |
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313 repo.ui.develwarn('applied empty changegroup', |
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314 config='warn-empty-changegroup') |
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315 clend = len(cl) |
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316 changesets = clend - clstart |
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317 progress.complete() |
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318 self.callback = None |
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319 |
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320 # pull off the manifest group |
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321 repo.ui.status(_("adding manifests\n")) |
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322 # We know that we'll never have more manifests than we had |
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323 # changesets. |
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324 progress = repo.ui.makeprogress(_('manifests'), unit=_('chunks'), |
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325 total=changesets) |
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326 self._unpackmanifests(repo, revmap, trp, progress) |
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327 |
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328 needfiles = {} |
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329 if repo.ui.configbool('server', 'validate'): |
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330 cl = repo.changelog |
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331 ml = repo.manifestlog |
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332 # validate incoming csets have their manifests |
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333 for cset in pycompat.xrange(clstart, clend): |
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334 mfnode = cl.changelogrevision(cset).manifest |
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335 mfest = ml[mfnode].readdelta() |
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336 # store file cgnodes we must see |
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337 for f, n in mfest.iteritems(): |
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338 needfiles.setdefault(f, set()).add(n) |
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339 |
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340 # process the files |
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341 repo.ui.status(_("adding file changes\n")) |
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342 newrevs, newfiles = _addchangegroupfiles( |
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343 repo, self, revmap, trp, efiles, needfiles) |
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344 revisions += newrevs |
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345 files += newfiles |
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346 |
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347 deltaheads = 0 |
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348 if oldheads: |
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349 heads = cl.heads() |
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350 deltaheads = len(heads) - len(oldheads) |
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351 for h in heads: |
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352 if h not in oldheads and repo[h].closesbranch(): |
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353 deltaheads -= 1 |
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354 htext = "" |
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355 if deltaheads: |
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356 htext = _(" (%+d heads)") % deltaheads |
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357 |
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358 repo.ui.status(_("added %d changesets" |
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359 " with %d changes to %d files%s\n") |
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360 % (changesets, revisions, files, htext)) |
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361 repo.invalidatevolatilesets() |
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362 |
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363 if changesets > 0: |
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364 if 'node' not in tr.hookargs: |
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365 tr.hookargs['node'] = hex(cl.node(clstart)) |
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366 tr.hookargs['node_last'] = hex(cl.node(clend - 1)) |
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367 hookargs = dict(tr.hookargs) |
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368 else: |
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369 hookargs = dict(tr.hookargs) |
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370 hookargs['node'] = hex(cl.node(clstart)) |
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371 hookargs['node_last'] = hex(cl.node(clend - 1)) |
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372 repo.hook('pretxnchangegroup', |
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373 throw=True, **pycompat.strkwargs(hookargs)) |
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374 |
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375 added = [cl.node(r) for r in pycompat.xrange(clstart, clend)] |
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376 phaseall = None |
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377 if srctype in ('push', 'serve'): |
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378 # Old servers can not push the boundary themselves. |
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379 # New servers won't push the boundary if changeset already |
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380 # exists locally as secret |
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381 # |
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382 # We should not use added here but the list of all change in |
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383 # the bundle |
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384 if repo.publishing(): |
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385 targetphase = phaseall = phases.public |
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386 else: |
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387 # closer target phase computation |
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388 |
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389 # Those changesets have been pushed from the |
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390 # outside, their phases are going to be pushed |
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391 # alongside. Therefor `targetphase` is |
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392 # ignored. |
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393 targetphase = phaseall = phases.draft |
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394 if added: |
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395 phases.registernew(repo, tr, targetphase, added) |
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396 if phaseall is not None: |
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397 phases.advanceboundary(repo, tr, phaseall, cgnodes) |
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398 |
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399 if changesets > 0: |
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400 |
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401 def runhooks(): |
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402 # These hooks run when the lock releases, not when the |
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403 # transaction closes. So it's possible for the changelog |
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404 # to have changed since we last saw it. |
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405 if clstart >= len(repo): |
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406 return |
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407 |
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408 repo.hook("changegroup", **pycompat.strkwargs(hookargs)) |
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409 |
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410 for n in added: |
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411 args = hookargs.copy() |
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412 args['node'] = hex(n) |
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413 del args['node_last'] |
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414 repo.hook("incoming", **pycompat.strkwargs(args)) |
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415 |
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416 newheads = [h for h in repo.heads() |
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417 if h not in oldheads] |
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418 repo.ui.log("incoming", |
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419 "%d incoming changes - new heads: %s\n", |
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420 len(added), |
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421 ', '.join([hex(c[:6]) for c in newheads])) |
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422 |
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423 tr.addpostclose('changegroup-runhooks-%020i' % clstart, |
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424 lambda tr: repo._afterlock(runhooks)) |
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425 finally: |
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426 repo.ui.flush() |
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427 # never return 0 here: |
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428 if deltaheads < 0: |
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429 ret = deltaheads - 1 |
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430 else: |
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431 ret = deltaheads + 1 |
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432 return ret |
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|
433 |
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|
434 def deltaiter(self): |
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435 """ |
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436 returns an iterator of the deltas in this changegroup |
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437 |
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438 Useful for passing to the underlying storage system to be stored. |
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439 """ |
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440 chain = None |
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441 for chunkdata in iter(lambda: self.deltachunk(chain), {}): |
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442 # Chunkdata: (node, p1, p2, cs, deltabase, delta, flags) |
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443 yield chunkdata |
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444 chain = chunkdata[0] |
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|
445 |
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|
446 class cg2unpacker(cg1unpacker): |
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447 """Unpacker for cg2 streams. |
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448 |
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449 cg2 streams add support for generaldelta, so the delta header |
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450 format is slightly different. All other features about the data |
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451 remain the same. |
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452 """ |
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453 deltaheader = _CHANGEGROUPV2_DELTA_HEADER |
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454 deltaheadersize = deltaheader.size |
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455 version = '02' |
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456 |
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457 def _deltaheader(self, headertuple, prevnode): |
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458 node, p1, p2, deltabase, cs = headertuple |
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|
459 flags = 0 |
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460 return node, p1, p2, deltabase, cs, flags |
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|
461 |
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462 class cg3unpacker(cg2unpacker): |
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463 """Unpacker for cg3 streams. |
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|
464 |
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|
465 cg3 streams add support for exchanging treemanifests and revlog |
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diff
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|
466 flags. It adds the revlog flags to the delta header and an empty chunk |
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|
467 separating manifests and files. |
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|
468 """ |
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|
469 deltaheader = _CHANGEGROUPV3_DELTA_HEADER |
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470 deltaheadersize = deltaheader.size |
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|
471 version = '03' |
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|
472 _grouplistcount = 2 # One list of manifests and one list of files |
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473 |
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474 def _deltaheader(self, headertuple, prevnode): |
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475 node, p1, p2, deltabase, cs, flags = headertuple |
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476 return node, p1, p2, deltabase, cs, flags |
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|
477 |
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478 def _unpackmanifests(self, repo, revmap, trp, prog): |
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479 super(cg3unpacker, self)._unpackmanifests(repo, revmap, trp, prog) |
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480 for chunkdata in iter(self.filelogheader, {}): |
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481 # If we get here, there are directory manifests in the changegroup |
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482 d = chunkdata["filename"] |
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483 repo.ui.debug("adding %s revisions\n" % d) |
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484 dirlog = repo.manifestlog._revlog.dirlog(d) |
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485 deltas = self.deltaiter() |
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486 if not dirlog.addgroup(deltas, revmap, trp): |
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487 raise error.Abort(_("received dir revlog group is empty")) |
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|
488 |
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489 class headerlessfixup(object): |
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490 def __init__(self, fh, h): |
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491 self._h = h |
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492 self._fh = fh |
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493 def read(self, n): |
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494 if self._h: |
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495 d, self._h = self._h[:n], self._h[n:] |
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496 if len(d) < n: |
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497 d += readexactly(self._fh, n - len(d)) |
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498 return d |
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499 return readexactly(self._fh, n) |
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|
500 |
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501 @attr.s(slots=True, frozen=True) |
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502 class revisiondelta(object): |
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503 """Describes a delta entry in a changegroup. |
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504 |
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505 Captured data is sufficient to serialize the delta into multiple |
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|
506 formats. |
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|
507 """ |
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508 # 20 byte node of this revision. |
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|
509 node = attr.ib() |
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510 # 20 byte nodes of parent revisions. |
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511 p1node = attr.ib() |
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|
512 p2node = attr.ib() |
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|
513 # 20 byte node of node this delta is against. |
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|
514 basenode = attr.ib() |
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|
515 # 20 byte node of changeset revision this delta is associated with. |
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|
516 linknode = attr.ib() |
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|
517 # 2 bytes of flags to apply to revision data. |
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|
518 flags = attr.ib() |
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|
519 # Iterable of chunks holding raw delta data. |
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diff
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|
520 deltachunks = attr.ib() |
38883
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changegroup: move ellipsisdata() from narrow
Gregory Szorc <gregory.szorc@gmail.com>
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diff
changeset
|
521 |
38902
4c99c6d1ef95
changegroup: rename cg1packer to cgpacker
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diff
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|
522 class cgpacker(object): |
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523 def __init__(self, repo, filematcher, version, allowreorder, |
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diff
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|
524 useprevdelta, builddeltaheader, manifestsend, |
38925
8a13855c8dbe
changegroup: always use the treemanifest-enabled version of _packmanifests()
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parents:
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diff
changeset
|
525 bundlecaps=None, ellipses=False, |
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parents:
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diff
changeset
|
526 shallow=False, ellipsisroots=None, fullnodes=None): |
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0455fc94ae00
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parents:
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diff
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|
527 """Given a source repo, construct a bundler. |
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diff
changeset
|
528 |
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diff
changeset
|
529 filematcher is a matcher that matches on files to include in the |
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diff
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|
530 changegroup. Used to facilitate sparse changegroups. |
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diff
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|
531 |
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|
532 allowreorder controls whether reordering of revisions is allowed. |
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|
533 This value is used when ``bundle.reorder`` is ``auto`` or isn't |
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diff
changeset
|
534 set. |
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diff
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|
535 |
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diff
changeset
|
536 useprevdelta controls whether revisions should always delta against |
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diff
changeset
|
537 the previous revision in the changegroup. |
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diff
changeset
|
538 |
38897
bd64b8b8f0dd
changegroup: pass function to build delta header into constructor
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diff
changeset
|
539 builddeltaheader is a callable that constructs the header for a group |
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diff
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|
540 delta. |
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changeset
|
541 |
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67f37e8a5490
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diff
changeset
|
542 manifestsend is a chunk to send after manifests have been fully emitted. |
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diff
changeset
|
543 |
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1469584ad5fe
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diff
changeset
|
544 ellipses indicates whether ellipsis serving mode is enabled. |
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diff
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|
545 |
32287
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diff
changeset
|
546 bundlecaps is optional and can be used to specify the set of |
df3cf9422e1b
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diff
changeset
|
547 capabilities which can be used to build the bundle. While bundlecaps is |
df3cf9422e1b
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Durham Goode <durham@fb.com>
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diff
changeset
|
548 unused in core Mercurial, extensions rely on this feature to communicate |
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diff
changeset
|
549 capabilities to customize the changegroup packer. |
38904
cdb9bc216771
changegroup: declare shallow flag in constructor
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diff
changeset
|
550 |
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diff
changeset
|
551 shallow indicates whether shallow data might be sent. The packer may |
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changegroup: declare shallow flag in constructor
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diff
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|
552 need to pack file contents not introduced by the changes being packed. |
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diff
changeset
|
553 |
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diff
changeset
|
554 fullnodes is the list of nodes which should not be ellipsis nodes. We |
1af339c22aeb
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diff
changeset
|
555 store this rather than the set of nodes that should be ellipsis because |
1af339c22aeb
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diff
changeset
|
556 for very large histories we expect this to be significantly smaller. |
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0455fc94ae00
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|
557 """ |
38794
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|
558 assert filematcher |
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|
559 self._filematcher = filematcher |
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diff
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|
560 |
38895
d7ac49c2353c
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parents:
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diff
changeset
|
561 self.version = version |
38901
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|
562 self._useprevdelta = useprevdelta |
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changeset
|
563 self._builddeltaheader = builddeltaheader |
38898
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564 self._manifestsend = manifestsend |
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565 self._ellipses = ellipses |
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566 |
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567 # Set of capabilities we can use to build the bundle. |
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568 if bundlecaps is None: |
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569 bundlecaps = set() |
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570 self._bundlecaps = bundlecaps |
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571 self._isshallow = shallow |
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572 self._fullnodes = fullnodes |
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573 |
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574 # Maps ellipsis revs to their roots at the changelog level. |
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575 self._precomputedellipsis = ellipsisroots |
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576 |
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577 # experimental config: bundle.reorder |
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578 reorder = repo.ui.config('bundle', 'reorder') |
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579 if reorder == 'auto': |
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580 self._reorder = allowreorder |
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581 else: |
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582 self._reorder = stringutil.parsebool(reorder) |
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583 |
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584 self._repo = repo |
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585 |
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586 if self._repo.ui.verbose and not self._repo.ui.debugflag: |
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587 self._verbosenote = self._repo.ui.note |
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588 else: |
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589 self._verbosenote = lambda s: None |
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590 |
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591 # TODO the functionality keyed off of this should probably be |
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592 # controlled via arguments to group() that influence behavior. |
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593 self._changelogdone = False |
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594 |
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595 # Maps CL revs to per-revlog revisions. Cleared in close() at |
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596 # the end of each group. |
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597 self._clrevtolocalrev = {} |
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598 self._nextclrevtolocalrev = {} |
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599 |
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600 # Maps changelog nodes to changelog revs. Filled in once |
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601 # during changelog stage and then left unmodified. |
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602 self._clnodetorev = {} |
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603 |
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604 def _close(self): |
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605 # Ellipses serving mode. |
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606 self._clrevtolocalrev.clear() |
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607 if self._nextclrevtolocalrev is not None: |
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608 self._clrevtolocalrev = self._nextclrevtolocalrev |
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609 self._nextclrevtolocalrev = None |
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610 self._changelogdone = True |
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611 |
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612 return closechunk() |
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613 |
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614 def _fileheader(self, fname): |
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615 return chunkheader(len(fname)) + fname |
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616 |
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617 # Extracted both for clarity and for overriding in extensions. |
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618 def _sortgroup(self, store, nodelist, lookup): |
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619 """Sort nodes for change group and turn them into revnums.""" |
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620 # Ellipses serving mode. |
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621 # |
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622 # In a perfect world, we'd generate better ellipsis-ified graphs |
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623 # for non-changelog revlogs. In practice, we haven't started doing |
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624 # that yet, so the resulting DAGs for the manifestlog and filelogs |
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625 # are actually full of bogus parentage on all the ellipsis |
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626 # nodes. This has the side effect that, while the contents are |
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627 # correct, the individual DAGs might be completely out of whack in |
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628 # a case like 882681bc3166 and its ancestors (back about 10 |
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629 # revisions or so) in the main hg repo. |
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630 # |
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631 # The one invariant we *know* holds is that the new (potentially |
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632 # bogus) DAG shape will be valid if we order the nodes in the |
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633 # order that they're introduced in dramatis personae by the |
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634 # changelog, so what we do is we sort the non-changelog histories |
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635 # by the order in which they are used by the changelog. |
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636 if self._ellipses and self._clnodetorev: |
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637 key = lambda n: self._clnodetorev[lookup(n)] |
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638 return [store.rev(n) for n in sorted(nodelist, key=key)] |
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|
639 |
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640 # for generaldelta revlogs, we linearize the revs; this will both be |
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641 # much quicker and generate a much smaller bundle |
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642 if (store._generaldelta and self._reorder is None) or self._reorder: |
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643 dag = dagutil.revlogdag(store) |
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644 return dag.linearize(set(store.rev(n) for n in nodelist)) |
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645 else: |
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646 return sorted([store.rev(n) for n in nodelist]) |
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647 |
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648 def group(self, nodelist, store, lookup, units=None): |
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649 """Calculate a delta group, yielding a sequence of changegroup chunks |
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650 (strings). |
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651 |
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652 Given a list of changeset revs, return a set of deltas and |
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653 metadata corresponding to nodes. The first delta is |
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654 first parent(nodelist[0]) -> nodelist[0], the receiver is |
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655 guaranteed to have this parent as it has all history before |
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656 these changesets. In the case firstparent is nullrev the |
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657 changegroup starts with a full revision. |
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|
658 |
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659 If units is not None, progress detail will be generated, units specifies |
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660 the type of revlog that is touched (changelog, manifest, etc.). |
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661 """ |
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662 # if we don't have any revisions touched by these changesets, bail |
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663 if len(nodelist) == 0: |
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664 yield self._close() |
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665 return |
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666 |
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667 revs = self._sortgroup(store, nodelist, lookup) |
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668 |
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669 # add the parent of the first rev |
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670 p = store.parentrevs(revs[0])[0] |
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671 revs.insert(0, p) |
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672 |
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673 # build deltas |
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674 progress = None |
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675 if units is not None: |
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676 progress = self._repo.ui.makeprogress(_('bundling'), unit=units, |
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677 total=(len(revs) - 1)) |
38783
e7aa113b14f7
global: use pycompat.xrange()
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38556
diff
changeset
|
678 for r in pycompat.xrange(len(revs) - 1): |
38410
1c5c4a5dd86d
changegroup: use progress helper
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parents:
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diff
changeset
|
679 if progress: |
1c5c4a5dd86d
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parents:
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diff
changeset
|
680 progress.update(r + 1) |
19200
4cfdec944edf
bundle-ng: move group into the bundler
Sune Foldager <cryo@cyanite.org>
parents:
19199
diff
changeset
|
681 prev, curr = revs[r], revs[r + 1] |
38891
205c98e2f1ba
changegroup: rename "revlog" variables
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parents:
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diff
changeset
|
682 linknode = lookup(store.node(curr)) |
38903
68e490ed640e
changegroup: make some packer attributes private
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
683 for c in self._revchunk(store, curr, prev, linknode): |
19200
4cfdec944edf
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parents:
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diff
changeset
|
684 yield c |
4cfdec944edf
bundle-ng: move group into the bundler
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parents:
19199
diff
changeset
|
685 |
38410
1c5c4a5dd86d
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Martin von Zweigbergk <martinvonz@google.com>
parents:
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diff
changeset
|
686 if progress: |
1c5c4a5dd86d
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Martin von Zweigbergk <martinvonz@google.com>
parents:
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diff
changeset
|
687 progress.complete() |
38903
68e490ed640e
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parents:
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diff
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|
688 yield self._close() |
19200
4cfdec944edf
bundle-ng: move group into the bundler
Sune Foldager <cryo@cyanite.org>
parents:
19199
diff
changeset
|
689 |
19289
6ea1f858efd9
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Durham Goode <durham@fb.com>
parents:
19208
diff
changeset
|
690 # filter any nodes that claim to be part of the known set |
38903
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changegroup: make some packer attributes private
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38902
diff
changeset
|
691 def _prune(self, store, missing, commonrevs): |
38806
5742d0428ed9
changegroup: inline prune() logic from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38794
diff
changeset
|
692 # TODO this violates storage abstraction for manifests. |
38891
205c98e2f1ba
changegroup: rename "revlog" variables
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
693 if isinstance(store, manifest.manifestrevlog): |
205c98e2f1ba
changegroup: rename "revlog" variables
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38890
diff
changeset
|
694 if not self._filematcher.visitdir(store._dir[:-1] or '.'): |
38806
5742d0428ed9
changegroup: inline prune() logic from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38794
diff
changeset
|
695 return [] |
5742d0428ed9
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parents:
38794
diff
changeset
|
696 |
38891
205c98e2f1ba
changegroup: rename "revlog" variables
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38890
diff
changeset
|
697 rr, rl = store.rev, store.linkrev |
19289
6ea1f858efd9
bundle: refactor changegroup prune to be its own function
Durham Goode <durham@fb.com>
parents:
19208
diff
changeset
|
698 return [n for n in missing if rl(rr(n)) not in commonrevs] |
6ea1f858efd9
bundle: refactor changegroup prune to be its own function
Durham Goode <durham@fb.com>
parents:
19208
diff
changeset
|
699 |
28228
abf120262683
changegroup: make _packmanifests() dumber
Martin von Zweigbergk <martinvonz@google.com>
parents:
28227
diff
changeset
|
700 def _packmanifests(self, dir, mfnodes, lookuplinknode): |
38925
8a13855c8dbe
changegroup: always use the treemanifest-enabled version of _packmanifests()
Martin von Zweigbergk <martinvonz@google.com>
parents:
38910
diff
changeset
|
701 """Pack manifests into a changegroup stream. |
38899
7a154778fb46
changegroup: consolidate tree manifests sending into cg1packer
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
702 |
7a154778fb46
changegroup: consolidate tree manifests sending into cg1packer
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38898
diff
changeset
|
703 Encodes the directory name in the output so multiple manifests |
38925
8a13855c8dbe
changegroup: always use the treemanifest-enabled version of _packmanifests()
Martin von Zweigbergk <martinvonz@google.com>
parents:
38910
diff
changeset
|
704 can be sent. Multiple manifests is not supported by cg1 and cg2. |
38899
7a154778fb46
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parents:
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diff
changeset
|
705 """ |
7a154778fb46
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parents:
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diff
changeset
|
706 |
7a154778fb46
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parents:
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diff
changeset
|
707 if dir: |
38925
8a13855c8dbe
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Martin von Zweigbergk <martinvonz@google.com>
parents:
38910
diff
changeset
|
708 assert self.version == b'03' |
38903
68e490ed640e
changegroup: make some packer attributes private
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38902
diff
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|
709 yield self._fileheader(dir) |
38899
7a154778fb46
changegroup: consolidate tree manifests sending into cg1packer
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parents:
38898
diff
changeset
|
710 |
7a154778fb46
changegroup: consolidate tree manifests sending into cg1packer
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38898
diff
changeset
|
711 # TODO violates storage abstractions by assuming revlogs. |
7a154778fb46
changegroup: consolidate tree manifests sending into cg1packer
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38898
diff
changeset
|
712 dirlog = self._repo.manifestlog._revlog.dirlog(dir) |
7a154778fb46
changegroup: consolidate tree manifests sending into cg1packer
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38898
diff
changeset
|
713 for chunk in self.group(mfnodes, dirlog, lookuplinknode, |
7a154778fb46
changegroup: consolidate tree manifests sending into cg1packer
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38898
diff
changeset
|
714 units=_('manifests')): |
7a154778fb46
changegroup: consolidate tree manifests sending into cg1packer
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38898
diff
changeset
|
715 yield chunk |
7a154778fb46
changegroup: consolidate tree manifests sending into cg1packer
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38898
diff
changeset
|
716 |
19204
e9c5b1c246dc
bundle-ng: move bundle generation to changegroup.py
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
19202
diff
changeset
|
717 def generate(self, commonrevs, clnodes, fastpathlinkrev, source): |
19202
0455fc94ae00
bundle-ng: move gengroup into bundler, pass repo object to bundler
Sune Foldager <cryo@cyanite.org>
parents:
19201
diff
changeset
|
718 '''yield a sequence of changegroup chunks (strings)''' |
0455fc94ae00
bundle-ng: move gengroup into bundler, pass repo object to bundler
Sune Foldager <cryo@cyanite.org>
parents:
19201
diff
changeset
|
719 repo = self._repo |
24978
f52560c64953
changegroup: drop _changelog and _manifest properties
Martin von Zweigbergk <martinvonz@google.com>
parents:
24977
diff
changeset
|
720 cl = repo.changelog |
19204
e9c5b1c246dc
bundle-ng: move bundle generation to changegroup.py
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
19202
diff
changeset
|
721 |
23381
cc0ff93d0c0c
changegroup: fix file linkrevs during reorders (issue4462)
Durham Goode <durham@fb.com>
parents:
23226
diff
changeset
|
722 clrevorder = {} |
19204
e9c5b1c246dc
bundle-ng: move bundle generation to changegroup.py
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
19202
diff
changeset
|
723 mfs = {} # needed manifests |
e9c5b1c246dc
bundle-ng: move bundle generation to changegroup.py
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parents:
19202
diff
changeset
|
724 fnodes = {} # needed file nodes |
38890
d706c77449f9
changegroup: move generate() modifications from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38889
diff
changeset
|
725 mfl = repo.manifestlog |
d706c77449f9
changegroup: move generate() modifications from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38889
diff
changeset
|
726 # TODO violates storage abstraction. |
d706c77449f9
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
38889
diff
changeset
|
727 mfrevlog = mfl._revlog |
28241
a4286175ecba
changegroup: drop special-casing of flat manifests
Martin von Zweigbergk <martinvonz@google.com>
parents:
28240
diff
changeset
|
728 changedfiles = set() |
19204
e9c5b1c246dc
bundle-ng: move bundle generation to changegroup.py
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
19202
diff
changeset
|
729 |
38890
d706c77449f9
changegroup: move generate() modifications from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38889
diff
changeset
|
730 # Callback for the changelog, used to collect changed files and |
d706c77449f9
changegroup: move generate() modifications from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38889
diff
changeset
|
731 # manifest nodes. |
19207
a67e1380dfbd
bundle-ng: simplify lookup and state handling
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
19206
diff
changeset
|
732 # Returns the linkrev node (identity in the changelog case). |
a67e1380dfbd
bundle-ng: simplify lookup and state handling
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
19206
diff
changeset
|
733 def lookupcl(x): |
a67e1380dfbd
bundle-ng: simplify lookup and state handling
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
19206
diff
changeset
|
734 c = cl.read(x) |
23381
cc0ff93d0c0c
changegroup: fix file linkrevs during reorders (issue4462)
Durham Goode <durham@fb.com>
parents:
23226
diff
changeset
|
735 clrevorder[x] = len(clrevorder) |
38890
d706c77449f9
changegroup: move generate() modifications from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38889
diff
changeset
|
736 |
38908
1469584ad5fe
changegroup: specify ellipses mode explicitly
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38907
diff
changeset
|
737 if self._ellipses: |
38890
d706c77449f9
changegroup: move generate() modifications from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38889
diff
changeset
|
738 # Only update mfs if x is going to be sent. Otherwise we |
d706c77449f9
changegroup: move generate() modifications from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38889
diff
changeset
|
739 # end up with bogus linkrevs specified for manifests and |
d706c77449f9
changegroup: move generate() modifications from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38889
diff
changeset
|
740 # we skip some manifest nodes that we should otherwise |
d706c77449f9
changegroup: move generate() modifications from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38889
diff
changeset
|
741 # have sent. |
38909
1af339c22aeb
changegroup: move fullnodes into cgpacker
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38908
diff
changeset
|
742 if (x in self._fullnodes |
38907
ad4c4cc9a5ac
changegroup: pass ellipsis roots into cgpacker constructor
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38906
diff
changeset
|
743 or cl.rev(x) in self._precomputedellipsis): |
38890
d706c77449f9
changegroup: move generate() modifications from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38889
diff
changeset
|
744 n = c[0] |
d706c77449f9
changegroup: move generate() modifications from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38889
diff
changeset
|
745 # Record the first changeset introducing this manifest |
d706c77449f9
changegroup: move generate() modifications from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38889
diff
changeset
|
746 # version. |
d706c77449f9
changegroup: move generate() modifications from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38889
diff
changeset
|
747 mfs.setdefault(n, x) |
d706c77449f9
changegroup: move generate() modifications from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38889
diff
changeset
|
748 # Set this narrow-specific dict so we have the lowest |
d706c77449f9
changegroup: move generate() modifications from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38889
diff
changeset
|
749 # manifest revnum to look up for this cl revnum. (Part of |
d706c77449f9
changegroup: move generate() modifications from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38889
diff
changeset
|
750 # mapping changelog ellipsis parents to manifest ellipsis |
d706c77449f9
changegroup: move generate() modifications from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38889
diff
changeset
|
751 # parents) |
38906
0548f696795b
changegroup: move revision maps to cgpacker
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38905
diff
changeset
|
752 self._nextclrevtolocalrev.setdefault(cl.rev(x), |
0548f696795b
changegroup: move revision maps to cgpacker
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38905
diff
changeset
|
753 mfrevlog.rev(n)) |
38890
d706c77449f9
changegroup: move generate() modifications from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38889
diff
changeset
|
754 # We can't trust the changed files list in the changeset if the |
d706c77449f9
changegroup: move generate() modifications from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38889
diff
changeset
|
755 # client requested a shallow clone. |
38904
cdb9bc216771
changegroup: declare shallow flag in constructor
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38903
diff
changeset
|
756 if self._isshallow: |
38890
d706c77449f9
changegroup: move generate() modifications from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38889
diff
changeset
|
757 changedfiles.update(mfl[c[0]].read().keys()) |
d706c77449f9
changegroup: move generate() modifications from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38889
diff
changeset
|
758 else: |
d706c77449f9
changegroup: move generate() modifications from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38889
diff
changeset
|
759 changedfiles.update(c[3]) |
d706c77449f9
changegroup: move generate() modifications from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38889
diff
changeset
|
760 else: |
d706c77449f9
changegroup: move generate() modifications from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38889
diff
changeset
|
761 |
d706c77449f9
changegroup: move generate() modifications from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38889
diff
changeset
|
762 n = c[0] |
d706c77449f9
changegroup: move generate() modifications from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38889
diff
changeset
|
763 # record the first changeset introducing this manifest version |
d706c77449f9
changegroup: move generate() modifications from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38889
diff
changeset
|
764 mfs.setdefault(n, x) |
d706c77449f9
changegroup: move generate() modifications from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38889
diff
changeset
|
765 # Record a complete list of potentially-changed files in |
d706c77449f9
changegroup: move generate() modifications from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38889
diff
changeset
|
766 # this manifest. |
d706c77449f9
changegroup: move generate() modifications from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38889
diff
changeset
|
767 changedfiles.update(c[3]) |
d706c77449f9
changegroup: move generate() modifications from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38889
diff
changeset
|
768 |
19207
a67e1380dfbd
bundle-ng: simplify lookup and state handling
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
19206
diff
changeset
|
769 return x |
19204
e9c5b1c246dc
bundle-ng: move bundle generation to changegroup.py
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
19202
diff
changeset
|
770 |
23748
4ab66de46a96
bundle: when verbose, show what takes up the space in the generated bundle
Mads Kiilerich <madski@unity3d.com>
parents:
23382
diff
changeset
|
771 self._verbosenote(_('uncompressed size of bundle content:\n')) |
4ab66de46a96
bundle: when verbose, show what takes up the space in the generated bundle
Mads Kiilerich <madski@unity3d.com>
parents:
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diff
changeset
|
772 size = 0 |
24912
e285b98c65cc
changegroup.group: drop 'reorder' parameter
Martin von Zweigbergk <martinvonz@google.com>
parents:
24911
diff
changeset
|
773 for chunk in self.group(clnodes, cl, lookupcl, units=_('changesets')): |
23748
4ab66de46a96
bundle: when verbose, show what takes up the space in the generated bundle
Mads Kiilerich <madski@unity3d.com>
parents:
23382
diff
changeset
|
774 size += len(chunk) |
23224
f4ab47ccefde
changegroup: don't define lookupmf() until it is needed
Gregory Szorc <gregory.szorc@gmail.com>
parents:
22971
diff
changeset
|
775 yield chunk |
23748
4ab66de46a96
bundle: when verbose, show what takes up the space in the generated bundle
Mads Kiilerich <madski@unity3d.com>
parents:
23382
diff
changeset
|
776 self._verbosenote(_('%8.i (changelog)\n') % size) |
23224
f4ab47ccefde
changegroup: don't define lookupmf() until it is needed
Gregory Szorc <gregory.szorc@gmail.com>
parents:
22971
diff
changeset
|
777 |
24977
4289383cb9d2
changegroup: document the cases where reordering complicates linkrevs
Martin von Zweigbergk <martinvonz@google.com>
parents:
24976
diff
changeset
|
778 # We need to make sure that the linkrev in the changegroup refers to |
4289383cb9d2
changegroup: document the cases where reordering complicates linkrevs
Martin von Zweigbergk <martinvonz@google.com>
parents:
24976
diff
changeset
|
779 # the first changeset that introduced the manifest or file revision. |
4289383cb9d2
changegroup: document the cases where reordering complicates linkrevs
Martin von Zweigbergk <martinvonz@google.com>
parents:
24976
diff
changeset
|
780 # The fastpath is usually safer than the slowpath, because the filelogs |
4289383cb9d2
changegroup: document the cases where reordering complicates linkrevs
Martin von Zweigbergk <martinvonz@google.com>
parents:
24976
diff
changeset
|
781 # are walked in revlog order. |
4289383cb9d2
changegroup: document the cases where reordering complicates linkrevs
Martin von Zweigbergk <martinvonz@google.com>
parents:
24976
diff
changeset
|
782 # |
4289383cb9d2
changegroup: document the cases where reordering complicates linkrevs
Martin von Zweigbergk <martinvonz@google.com>
parents:
24976
diff
changeset
|
783 # When taking the slowpath with reorder=None and the manifest revlog |
4289383cb9d2
changegroup: document the cases where reordering complicates linkrevs
Martin von Zweigbergk <martinvonz@google.com>
parents:
24976
diff
changeset
|
784 # uses generaldelta, the manifest may be walked in the "wrong" order. |
4289383cb9d2
changegroup: document the cases where reordering complicates linkrevs
Martin von Zweigbergk <martinvonz@google.com>
parents:
24976
diff
changeset
|
785 # Without 'clrevorder', we would get an incorrect linkrev (see fix in |
4289383cb9d2
changegroup: document the cases where reordering complicates linkrevs
Martin von Zweigbergk <martinvonz@google.com>
parents:
24976
diff
changeset
|
786 # cc0ff93d0c0c). |
4289383cb9d2
changegroup: document the cases where reordering complicates linkrevs
Martin von Zweigbergk <martinvonz@google.com>
parents:
24976
diff
changeset
|
787 # |
4289383cb9d2
changegroup: document the cases where reordering complicates linkrevs
Martin von Zweigbergk <martinvonz@google.com>
parents:
24976
diff
changeset
|
788 # When taking the fastpath, we are only vulnerable to reordering |
4289383cb9d2
changegroup: document the cases where reordering complicates linkrevs
Martin von Zweigbergk <martinvonz@google.com>
parents:
24976
diff
changeset
|
789 # of the changelog itself. The changelog never uses generaldelta, so |
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790 # it is only reordered when reorder=True. To handle this case, we |
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791 # simply take the slowpath, which already has the 'clrevorder' logic. |
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792 # This was also fixed in cc0ff93d0c0c. |
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793 fastpathlinkrev = fastpathlinkrev and not self._reorder |
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794 # Treemanifests don't work correctly with fastpathlinkrev |
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795 # either, because we don't discover which directory nodes to |
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796 # send along with files. This could probably be fixed. |
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797 fastpathlinkrev = fastpathlinkrev and ( |
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798 'treemanifest' not in repo.requirements) |
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799 |
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800 for chunk in self.generatemanifests(commonrevs, clrevorder, |
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|
801 fastpathlinkrev, mfs, fnodes, source): |
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802 yield chunk |
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|
803 |
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|
804 if self._ellipses: |
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805 mfdicts = None |
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806 if self._isshallow: |
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807 mfdicts = [(self._repo.manifestlog[n].read(), lr) |
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808 for (n, lr) in mfs.iteritems()] |
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|
809 |
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810 mfs.clear() |
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|
811 clrevs = set(cl.rev(x) for x in clnodes) |
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|
812 |
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|
813 if not fastpathlinkrev: |
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|
814 def linknodes(unused, fname): |
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815 return fnodes.get(fname, {}) |
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816 else: |
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|
817 cln = cl.node |
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818 def linknodes(filerevlog, fname): |
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819 llr = filerevlog.linkrev |
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820 fln = filerevlog.node |
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821 revs = ((r, llr(r)) for r in filerevlog) |
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822 return dict((fln(r), cln(lr)) for r, lr in revs if lr in clrevs) |
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|
823 |
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|
824 if self._ellipses: |
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825 # We need to pass the mfdicts variable down into |
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|
826 # generatefiles(), but more than one command might have |
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|
827 # wrapped generatefiles so we can't modify the function |
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|
828 # signature. Instead, we pass the data to ourselves using an |
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|
829 # instance attribute. I'm sorry. |
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|
830 self._mfdicts = mfdicts |
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|
831 |
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|
832 for chunk in self.generatefiles(changedfiles, linknodes, commonrevs, |
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|
833 source): |
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|
834 yield chunk |
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|
835 |
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|
836 yield self._close() |
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|
837 |
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|
838 if clnodes: |
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|
839 repo.hook('outgoing', node=hex(clnodes[0]), source=source) |
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|
840 |
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|
841 def generatemanifests(self, commonrevs, clrevorder, fastpathlinkrev, mfs, |
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|
842 fnodes, source): |
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|
843 """Returns an iterator of changegroup chunks containing manifests. |
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|
844 |
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|
845 `source` is unused here, but is used by extensions like remotefilelog to |
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|
846 change what is sent based in pulls vs pushes, etc. |
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|
847 """ |
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|
848 repo = self._repo |
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|
849 mfl = repo.manifestlog |
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|
850 dirlog = mfl._revlog.dirlog |
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|
851 tmfnodes = {'': mfs} |
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|
852 |
19207
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19206
diff
changeset
|
853 # Callback for the manifest, used to collect linkrevs for filelog |
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|
854 # revisions. |
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|
855 # Returns the linkrev node (collected in lookupcl). |
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|
856 def makelookupmflinknode(dir, nodes): |
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|
857 if fastpathlinkrev: |
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|
858 assert not dir |
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changeset
|
859 return mfs.__getitem__ |
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|
860 |
27239
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|
861 def lookupmflinknode(x): |
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|
862 """Callback for looking up the linknode for manifests. |
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|
863 |
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|
864 Returns the linkrev node for the specified manifest. |
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|
865 |
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|
866 SIDE EFFECT: |
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|
867 |
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|
868 1) fclnodes gets populated with the list of relevant |
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|
869 file nodes if we're not using fastpathlinkrev |
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diff
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|
870 2) When treemanifests are in use, collects treemanifest nodes |
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changeset
|
871 to send |
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|
872 |
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|
873 Note that this means manifests must be completely sent to |
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|
874 the client before you can trust the list of files and |
77d25b913f80
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|
875 treemanifests to send. |
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|
876 """ |
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|
877 clnode = nodes[x] |
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Durham Goode <durham@fb.com>
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|
878 mdata = mfl.get(dir, x).readfast(shallow=True) |
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|
879 for p, n, fl in mdata.iterentries(): |
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|
880 if fl == 't': # subdirectory manifest |
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881 subdir = dir + p + '/' |
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|
882 tmfclnodes = tmfnodes.setdefault(subdir, {}) |
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|
883 tmfclnode = tmfclnodes.setdefault(n, clnode) |
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884 if clrevorder[clnode] < clrevorder[tmfclnode]: |
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|
885 tmfclnodes[n] = clnode |
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|
886 else: |
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|
887 f = dir + p |
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diff
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|
888 fclnodes = fnodes.setdefault(f, {}) |
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|
889 fclnode = fclnodes.setdefault(n, clnode) |
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|
890 if clrevorder[clnode] < clrevorder[fclnode]: |
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|
891 fclnodes[n] = clnode |
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|
892 return clnode |
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|
893 return lookupmflinknode |
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diff
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|
894 |
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|
895 size = 0 |
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|
896 while tmfnodes: |
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|
897 dir, nodes = tmfnodes.popitem() |
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|
898 prunednodes = self._prune(dirlog(dir), nodes, commonrevs) |
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|
899 if not dir or prunednodes: |
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|
900 for x in self._packmanifests(dir, prunednodes, |
8a13855c8dbe
changegroup: always use the treemanifest-enabled version of _packmanifests()
Martin von Zweigbergk <martinvonz@google.com>
parents:
38910
diff
changeset
|
901 makelookupmflinknode(dir, nodes)): |
29371
1b699c7eb2b7
changegroup: don't send empty subdirectory manifest groups
Martin von Zweigbergk <martinvonz@google.com>
parents:
29236
diff
changeset
|
902 size += len(x) |
1b699c7eb2b7
changegroup: don't send empty subdirectory manifest groups
Martin von Zweigbergk <martinvonz@google.com>
parents:
29236
diff
changeset
|
903 yield x |
28229
8e13b2379407
changegroup: include subdirectory manifests in verbose size
Martin von Zweigbergk <martinvonz@google.com>
parents:
28228
diff
changeset
|
904 self._verbosenote(_('%8.i (manifests)\n') % size) |
38898
67f37e8a5490
changegroup: pass end of manifests marker into constructor
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38897
diff
changeset
|
905 yield self._manifestsend |
19206
6308896b1d4a
bundle-ng: simplify bundle10.generate
Sune Foldager <cryo@cyanite.org>
parents:
19204
diff
changeset
|
906 |
24897
5c35a6040352
changegroup: document that 'source' parameter exists for extensions
Martin von Zweigbergk <martinvonz@google.com>
parents:
24896
diff
changeset
|
907 # The 'source' parameter is useful for extensions |
19334
95a49112e7ab
bundle: move file chunk generation to it's own function
Durham Goode <durham@fb.com>
parents:
19325
diff
changeset
|
908 def generatefiles(self, changedfiles, linknodes, commonrevs, source): |
38889
a06aab274aef
changegroup: move generatefiles() from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38888
diff
changeset
|
909 changedfiles = list(filter(self._filematcher, changedfiles)) |
a06aab274aef
changegroup: move generatefiles() from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38888
diff
changeset
|
910 |
38904
cdb9bc216771
changegroup: declare shallow flag in constructor
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38903
diff
changeset
|
911 if self._isshallow: |
38889
a06aab274aef
changegroup: move generatefiles() from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38888
diff
changeset
|
912 # See comment in generate() for why this sadness is a thing. |
a06aab274aef
changegroup: move generatefiles() from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38888
diff
changeset
|
913 mfdicts = self._mfdicts |
a06aab274aef
changegroup: move generatefiles() from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38888
diff
changeset
|
914 del self._mfdicts |
a06aab274aef
changegroup: move generatefiles() from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38888
diff
changeset
|
915 # In a shallow clone, the linknodes callback needs to also include |
a06aab274aef
changegroup: move generatefiles() from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38888
diff
changeset
|
916 # those file nodes that are in the manifests we sent but weren't |
a06aab274aef
changegroup: move generatefiles() from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38888
diff
changeset
|
917 # introduced by those manifests. |
a06aab274aef
changegroup: move generatefiles() from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38888
diff
changeset
|
918 commonctxs = [self._repo[c] for c in commonrevs] |
a06aab274aef
changegroup: move generatefiles() from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38888
diff
changeset
|
919 oldlinknodes = linknodes |
a06aab274aef
changegroup: move generatefiles() from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38888
diff
changeset
|
920 clrev = self._repo.changelog.rev |
a06aab274aef
changegroup: move generatefiles() from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38888
diff
changeset
|
921 |
a06aab274aef
changegroup: move generatefiles() from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38888
diff
changeset
|
922 # Defining this function has a side-effect of overriding the |
a06aab274aef
changegroup: move generatefiles() from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38888
diff
changeset
|
923 # function of the same name that was passed in as an argument. |
a06aab274aef
changegroup: move generatefiles() from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38888
diff
changeset
|
924 # TODO have caller pass in appropriate function. |
a06aab274aef
changegroup: move generatefiles() from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38888
diff
changeset
|
925 def linknodes(flog, fname): |
a06aab274aef
changegroup: move generatefiles() from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38888
diff
changeset
|
926 for c in commonctxs: |
a06aab274aef
changegroup: move generatefiles() from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38888
diff
changeset
|
927 try: |
a06aab274aef
changegroup: move generatefiles() from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38888
diff
changeset
|
928 fnode = c.filenode(fname) |
38906
0548f696795b
changegroup: move revision maps to cgpacker
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38905
diff
changeset
|
929 self._clrevtolocalrev[c.rev()] = flog.rev(fnode) |
38889
a06aab274aef
changegroup: move generatefiles() from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38888
diff
changeset
|
930 except error.ManifestLookupError: |
a06aab274aef
changegroup: move generatefiles() from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38888
diff
changeset
|
931 pass |
a06aab274aef
changegroup: move generatefiles() from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38888
diff
changeset
|
932 links = oldlinknodes(flog, fname) |
a06aab274aef
changegroup: move generatefiles() from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38888
diff
changeset
|
933 if len(links) != len(mfdicts): |
a06aab274aef
changegroup: move generatefiles() from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38888
diff
changeset
|
934 for mf, lr in mfdicts: |
a06aab274aef
changegroup: move generatefiles() from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38888
diff
changeset
|
935 fnode = mf.get(fname, None) |
a06aab274aef
changegroup: move generatefiles() from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38888
diff
changeset
|
936 if fnode in links: |
a06aab274aef
changegroup: move generatefiles() from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38888
diff
changeset
|
937 links[fnode] = min(links[fnode], lr, key=clrev) |
a06aab274aef
changegroup: move generatefiles() from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38888
diff
changeset
|
938 elif fnode: |
a06aab274aef
changegroup: move generatefiles() from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38888
diff
changeset
|
939 links[fnode] = lr |
a06aab274aef
changegroup: move generatefiles() from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38888
diff
changeset
|
940 return links |
a06aab274aef
changegroup: move generatefiles() from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38888
diff
changeset
|
941 |
a06aab274aef
changegroup: move generatefiles() from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38888
diff
changeset
|
942 return self._generatefiles(changedfiles, linknodes, commonrevs, source) |
a06aab274aef
changegroup: move generatefiles() from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38888
diff
changeset
|
943 |
a06aab274aef
changegroup: move generatefiles() from narrow
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38888
diff
changeset
|
944 def _generatefiles(self, changedfiles, linknodes, commonrevs, source): |
19334
95a49112e7ab
bundle: move file chunk generation to it's own function
Durham Goode <durham@fb.com>
parents:
19325
diff
changeset
|
945 repo = self._repo |
38410
1c5c4a5dd86d
changegroup: use progress helper
Martin von Zweigbergk <martinvonz@google.com>
parents:
38382
diff
changeset
|
946 progress = repo.ui.makeprogress(_('bundling'), unit=_('files'), |
1c5c4a5dd86d
changegroup: use progress helper
Martin von Zweigbergk <martinvonz@google.com>
parents:
38382
diff
changeset
|
947 total=len(changedfiles)) |
19334
95a49112e7ab
bundle: move file chunk generation to it's own function
Durham Goode <durham@fb.com>
parents:
19325
diff
changeset
|
948 for i, fname in enumerate(sorted(changedfiles)): |
95a49112e7ab
bundle: move file chunk generation to it's own function
Durham Goode <durham@fb.com>
parents:
19325
diff
changeset
|
949 filerevlog = repo.file(fname) |
95a49112e7ab
bundle: move file chunk generation to it's own function
Durham Goode <durham@fb.com>
parents:
19325
diff
changeset
|
950 if not filerevlog: |
37339
5859800edfc5
changegroup: remove "revlog" from error message
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37132
diff
changeset
|
951 raise error.Abort(_("empty or missing file data for %s") % |
5859800edfc5
changegroup: remove "revlog" from error message
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37132
diff
changeset
|
952 fname) |
19334
95a49112e7ab
bundle: move file chunk generation to it's own function
Durham Goode <durham@fb.com>
parents:
19325
diff
changeset
|
953 |
95a49112e7ab
bundle: move file chunk generation to it's own function
Durham Goode <durham@fb.com>
parents:
19325
diff
changeset
|
954 linkrevnodes = linknodes(filerevlog, fname) |
19207
a67e1380dfbd
bundle-ng: simplify lookup and state handling
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
19206
diff
changeset
|
955 # Lookup for filenodes, we collected the linkrev nodes above in the |
a67e1380dfbd
bundle-ng: simplify lookup and state handling
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
19206
diff
changeset
|
956 # fastpath case and with lookupmf in the slowpath case. |
a67e1380dfbd
bundle-ng: simplify lookup and state handling
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
19206
diff
changeset
|
957 def lookupfilelog(x): |
a67e1380dfbd
bundle-ng: simplify lookup and state handling
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
19206
diff
changeset
|
958 return linkrevnodes[x] |
a67e1380dfbd
bundle-ng: simplify lookup and state handling
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
19206
diff
changeset
|
959 |
38903
68e490ed640e
changegroup: make some packer attributes private
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38902
diff
changeset
|
960 filenodes = self._prune(filerevlog, linkrevnodes, commonrevs) |
19206
6308896b1d4a
bundle-ng: simplify bundle10.generate
Sune Foldager <cryo@cyanite.org>
parents:
19204
diff
changeset
|
961 if filenodes: |
38410
1c5c4a5dd86d
changegroup: use progress helper
Martin von Zweigbergk <martinvonz@google.com>
parents:
38382
diff
changeset
|
962 progress.update(i + 1, item=fname) |
38903
68e490ed640e
changegroup: make some packer attributes private
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38902
diff
changeset
|
963 h = self._fileheader(fname) |
23748
4ab66de46a96
bundle: when verbose, show what takes up the space in the generated bundle
Mads Kiilerich <madski@unity3d.com>
parents:
23382
diff
changeset
|
964 size = len(h) |
4ab66de46a96
bundle: when verbose, show what takes up the space in the generated bundle
Mads Kiilerich <madski@unity3d.com>
parents:
23382
diff
changeset
|
965 yield h |
24912
e285b98c65cc
changegroup.group: drop 'reorder' parameter
Martin von Zweigbergk <martinvonz@google.com>
parents:
24911
diff
changeset
|
966 for chunk in self.group(filenodes, filerevlog, lookupfilelog): |
23748
4ab66de46a96
bundle: when verbose, show what takes up the space in the generated bundle
Mads Kiilerich <madski@unity3d.com>
parents:
23382
diff
changeset
|
967 size += len(chunk) |
19202
0455fc94ae00
bundle-ng: move gengroup into bundler, pass repo object to bundler
Sune Foldager <cryo@cyanite.org>
parents:
19201
diff
changeset
|
968 yield chunk |
23748
4ab66de46a96
bundle: when verbose, show what takes up the space in the generated bundle
Mads Kiilerich <madski@unity3d.com>
parents:
23382
diff
changeset
|
969 self._verbosenote(_('%8.i %s\n') % (size, fname)) |
38410
1c5c4a5dd86d
changegroup: use progress helper
Martin von Zweigbergk <martinvonz@google.com>
parents:
38382
diff
changeset
|
970 progress.complete() |
19200
4cfdec944edf
bundle-ng: move group into the bundler
Sune Foldager <cryo@cyanite.org>
parents:
19199
diff
changeset
|
971 |
38903
68e490ed640e
changegroup: make some packer attributes private
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38902
diff
changeset
|
972 def _deltaparent(self, store, rev, p1, p2, prev): |
38901
23ae0c07a3e1
changegroup: control delta parent behavior via constructor
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38900
diff
changeset
|
973 if self._useprevdelta: |
23ae0c07a3e1
changegroup: control delta parent behavior via constructor
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38900
diff
changeset
|
974 if not store.candelta(prev, rev): |
23ae0c07a3e1
changegroup: control delta parent behavior via constructor
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38900
diff
changeset
|
975 raise error.ProgrammingError( |
23ae0c07a3e1
changegroup: control delta parent behavior via constructor
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38900
diff
changeset
|
976 'cg1 should not be used in this case') |
23ae0c07a3e1
changegroup: control delta parent behavior via constructor
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38900
diff
changeset
|
977 return prev |
23ae0c07a3e1
changegroup: control delta parent behavior via constructor
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38900
diff
changeset
|
978 |
23ae0c07a3e1
changegroup: control delta parent behavior via constructor
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38900
diff
changeset
|
979 # Narrow ellipses mode. |
38908
1469584ad5fe
changegroup: specify ellipses mode explicitly
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38907
diff
changeset
|
980 if self._ellipses: |
38901
23ae0c07a3e1
changegroup: control delta parent behavior via constructor
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38900
diff
changeset
|
981 # TODO: send better deltas when in narrow mode. |
23ae0c07a3e1
changegroup: control delta parent behavior via constructor
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38900
diff
changeset
|
982 # |
23ae0c07a3e1
changegroup: control delta parent behavior via constructor
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38900
diff
changeset
|
983 # changegroup.group() loops over revisions to send, |
23ae0c07a3e1
changegroup: control delta parent behavior via constructor
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38900
diff
changeset
|
984 # including revisions we'll skip. What this means is that |
23ae0c07a3e1
changegroup: control delta parent behavior via constructor
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38900
diff
changeset
|
985 # `prev` will be a potentially useless delta base for all |
23ae0c07a3e1
changegroup: control delta parent behavior via constructor
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38900
diff
changeset
|
986 # ellipsis nodes, as the client likely won't have it. In |
23ae0c07a3e1
changegroup: control delta parent behavior via constructor
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38900
diff
changeset
|
987 # the future we should do bookkeeping about which nodes |
23ae0c07a3e1
changegroup: control delta parent behavior via constructor
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38900
diff
changeset
|
988 # have been sent to the client, and try to be |
23ae0c07a3e1
changegroup: control delta parent behavior via constructor
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38900
diff
changeset
|
989 # significantly smarter about delta bases. This is |
23ae0c07a3e1
changegroup: control delta parent behavior via constructor
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38900
diff
changeset
|
990 # slightly tricky because this same code has to work for |
23ae0c07a3e1
changegroup: control delta parent behavior via constructor
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38900
diff
changeset
|
991 # all revlogs, and we don't have the linkrev/linknode here. |
23ae0c07a3e1
changegroup: control delta parent behavior via constructor
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38900
diff
changeset
|
992 return p1 |
23ae0c07a3e1
changegroup: control delta parent behavior via constructor
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38900
diff
changeset
|
993 |
23ae0c07a3e1
changegroup: control delta parent behavior via constructor
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38900
diff
changeset
|
994 dp = store.deltaparent(rev) |
23ae0c07a3e1
changegroup: control delta parent behavior via constructor
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38900
diff
changeset
|
995 if dp == nullrev and store.storedeltachains: |
23ae0c07a3e1
changegroup: control delta parent behavior via constructor
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38900
diff
changeset
|
996 # Avoid sending full revisions when delta parent is null. Pick prev |
23ae0c07a3e1
changegroup: control delta parent behavior via constructor
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38900
diff
changeset
|
997 # in that case. It's tempting to pick p1 in this case, as p1 will |
23ae0c07a3e1
changegroup: control delta parent behavior via constructor
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38900
diff
changeset
|
998 # be smaller in the common case. However, computing a delta against |
23ae0c07a3e1
changegroup: control delta parent behavior via constructor
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38900
diff
changeset
|
999 # p1 may require resolving the raw text of p1, which could be |
23ae0c07a3e1
changegroup: control delta parent behavior via constructor
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38900
diff
changeset
|
1000 # expensive. The revlog caches should have prev cached, meaning |
23ae0c07a3e1
changegroup: control delta parent behavior via constructor
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38900
diff
changeset
|
1001 # less CPU for changegroup generation. There is likely room to add |
23ae0c07a3e1
changegroup: control delta parent behavior via constructor
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38900
diff
changeset
|
1002 # a flag and/or config option to control this behavior. |
23ae0c07a3e1
changegroup: control delta parent behavior via constructor
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38900
diff
changeset
|
1003 base = prev |
23ae0c07a3e1
changegroup: control delta parent behavior via constructor
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38900
diff
changeset
|
1004 elif dp == nullrev: |
23ae0c07a3e1
changegroup: control delta parent behavior via constructor
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38900
diff
changeset
|
1005 # revlog is configured to use full snapshot for a reason, |
23ae0c07a3e1
changegroup: control delta parent behavior via constructor
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38900
diff
changeset
|
1006 # stick to full snapshot. |
23ae0c07a3e1
changegroup: control delta parent behavior via constructor
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38900
diff
changeset
|
1007 base = nullrev |
23ae0c07a3e1
changegroup: control delta parent behavior via constructor
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38900
diff
changeset
|
1008 elif dp not in (p1, p2, prev): |
23ae0c07a3e1
changegroup: control delta parent behavior via constructor
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38900
diff
changeset
|
1009 # Pick prev when we can't be sure remote has the base revision. |
23ae0c07a3e1
changegroup: control delta parent behavior via constructor
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38900
diff
changeset
|
1010 return prev |
23ae0c07a3e1
changegroup: control delta parent behavior via constructor
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38900
diff
changeset
|
1011 else: |
23ae0c07a3e1
changegroup: control delta parent behavior via constructor
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38900
diff
changeset
|
1012 base = dp |
23ae0c07a3e1
changegroup: control delta parent behavior via constructor
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38900
diff
changeset
|
1013 |
23ae0c07a3e1
changegroup: control delta parent behavior via constructor
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38900
diff
changeset
|
1014 if base != nullrev and not store.candelta(base, rev): |
23ae0c07a3e1
changegroup: control delta parent behavior via constructor
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diff
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|
1015 base = nullrev |
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|
1016 |
23ae0c07a3e1
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diff
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|
1017 return base |
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changegroup: introduce cg2packer/unpacker
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parents:
23178
diff
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|
1018 |
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diff
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|
1019 def _revchunk(self, store, rev, prev, linknode): |
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1469584ad5fe
changegroup: specify ellipses mode explicitly
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diff
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|
1020 if self._ellipses: |
38893
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diff
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|
1021 fn = self._revisiondeltanarrow |
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|
1022 else: |
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diff
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|
1023 fn = self._revisiondeltanormal |
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|
1024 |
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|
1025 delta = fn(store, rev, prev, linknode) |
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diff
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|
1026 if not delta: |
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diff
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|
1027 return |
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|
1028 |
38897
bd64b8b8f0dd
changegroup: pass function to build delta header into constructor
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diff
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|
1029 meta = self._builddeltaheader(delta) |
38893
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diff
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|
1030 l = len(meta) + sum(len(x) for x in delta.deltachunks) |
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|
1031 |
38893
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|
1032 yield chunkheader(l) |
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diff
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|
1033 yield meta |
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|
1034 for x in delta.deltachunks: |
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diff
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|
1035 yield x |
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|
1036 |
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|
1037 def _revisiondeltanormal(self, store, rev, prev, linknode): |
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|
1038 node = store.node(rev) |
205c98e2f1ba
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diff
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|
1039 p1, p2 = store.parentrevs(rev) |
38903
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diff
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|
1040 base = self._deltaparent(store, rev, p1, p2, prev) |
14143
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diff
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|
1041 |
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diff
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|
1042 prefix = '' |
38891
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diff
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|
1043 if store.iscensored(base) or store.iscensored(rev): |
24190
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changegroup: emit full-replacement deltas if either revision is censored
Mike Edgar <adgar@google.com>
parents:
24180
diff
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|
1044 try: |
38891
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changegroup: rename "revlog" variables
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diff
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|
1045 delta = store.revision(node, raw=True) |
25660
328739ea70c3
global: mass rewrite to use modern exception syntax
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parents:
25624
diff
changeset
|
1046 except error.CensoredNodeError as e: |
24190
903c7e8c97ad
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Mike Edgar <adgar@google.com>
parents:
24180
diff
changeset
|
1047 delta = e.tombstone |
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Mike Edgar <adgar@google.com>
parents:
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diff
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|
1048 if base == nullrev: |
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Mike Edgar <adgar@google.com>
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diff
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|
1049 prefix = mdiff.trivialdiffheader(len(delta)) |
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diff
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|
1050 else: |
38891
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diff
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|
1051 baselen = store.rawsize(base) |
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parents:
24180
diff
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|
1052 prefix = mdiff.replacediffheader(baselen, len(delta)) |
903c7e8c97ad
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Mike Edgar <adgar@google.com>
parents:
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diff
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|
1053 elif base == nullrev: |
38891
205c98e2f1ba
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diff
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|
1054 delta = store.revision(node, raw=True) |
14143
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diff
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|
1055 prefix = mdiff.trivialdiffheader(len(delta)) |
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|
1056 else: |
38891
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diff
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|
1057 delta = store.revdiff(base, rev) |
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|
1058 p1n, p2n = store.parents(node) |
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diff
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|
1059 |
38893
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|
1060 return revisiondelta( |
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diff
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|
1061 node=node, |
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diff
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|
1062 p1node=p1n, |
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diff
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|
1063 p2node=p2n, |
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diff
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|
1064 basenode=store.node(base), |
23d582caae30
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|
1065 linknode=linknode, |
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diff
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|
1066 flags=store.flags(rev), |
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diff
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|
1067 deltachunks=(prefix, delta), |
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diff
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|
1068 ) |
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parents:
38892
diff
changeset
|
1069 |
23d582caae30
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diff
changeset
|
1070 def _revisiondeltanarrow(self, store, rev, prev, linknode): |
38886
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|
1071 # build up some mapping information that's useful later. See |
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|
1072 # the local() nested function below. |
38905
379d90327861
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parents:
38904
diff
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|
1073 if not self._changelogdone: |
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diff
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|
1074 self._clnodetorev[linknode] = rev |
38886
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diff
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|
1075 linkrev = rev |
38906
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diff
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|
1076 self._clrevtolocalrev[linkrev] = rev |
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|
1077 else: |
38906
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|
1078 linkrev = self._clnodetorev[linknode] |
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diff
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|
1079 self._clrevtolocalrev[linkrev] = rev |
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diff
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|
1080 |
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changeset
|
1081 # This is a node to send in full, because the changeset it |
66cf046ef60f
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parents:
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diff
changeset
|
1082 # corresponds to was a full changeset. |
38909
1af339c22aeb
changegroup: move fullnodes into cgpacker
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38908
diff
changeset
|
1083 if linknode in self._fullnodes: |
38893
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diff
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|
1084 return self._revisiondeltanormal(store, rev, prev, linknode) |
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diff
changeset
|
1085 |
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changeset
|
1086 # At this point, a node can either be one we should skip or an |
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diff
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|
1087 # ellipsis. If it's not an ellipsis, bail immediately. |
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diff
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|
1088 if linkrev not in self._precomputedellipsis: |
38886
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diff
changeset
|
1089 return |
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|
1090 |
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diff
changeset
|
1091 linkparents = self._precomputedellipsis[linkrev] |
38886
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|
1092 def local(clrev): |
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|
1093 """Turn a changelog revnum into a local revnum. |
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|
1094 |
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|
1095 The ellipsis dag is stored as revnums on the changelog, |
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|
1096 but when we're producing ellipsis entries for |
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|
1097 non-changelog revlogs, we need to turn those numbers into |
66cf046ef60f
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|
1098 something local. This does that for us, and during the |
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|
1099 changelog sending phase will also expand the stored |
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|
1100 mappings as needed. |
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|
1101 """ |
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changeset
|
1102 if clrev == nullrev: |
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|
1103 return nullrev |
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|
1104 |
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|
1105 if not self._changelogdone: |
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|
1106 # If we're doing the changelog, it's possible that we |
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|
1107 # have a parent that is already on the client, and we |
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|
1108 # need to store some extra mapping information so that |
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|
1109 # our contained ellipsis nodes will be able to resolve |
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|
1110 # their parents. |
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|
1111 if clrev not in self._clrevtolocalrev: |
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|
1112 clnode = store.node(clrev) |
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|
1113 self._clnodetorev[clnode] = clrev |
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|
1114 return clrev |
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|
1115 |
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|
1116 # Walk the ellipsis-ized changelog breadth-first looking for a |
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|
1117 # change that has been linked from the current revlog. |
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|
1118 # |
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|
1119 # For a flat manifest revlog only a single step should be necessary |
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|
1120 # as all relevant changelog entries are relevant to the flat |
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|
1121 # manifest. |
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|
1122 # |
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|
1123 # For a filelog or tree manifest dirlog however not every changelog |
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|
1124 # entry will have been relevant, so we need to skip some changelog |
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|
1125 # nodes even after ellipsis-izing. |
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|
1126 walk = [clrev] |
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|
1127 while walk: |
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|
1128 p = walk[0] |
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|
1129 walk = walk[1:] |
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1130 if p in self._clrevtolocalrev: |
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1131 return self._clrevtolocalrev[p] |
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1132 elif p in self._fullnodes: |
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1133 walk.extend([pp for pp in self._repo.changelog.parentrevs(p) |
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1134 if pp != nullrev]) |
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1135 elif p in self._precomputedellipsis: |
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1136 walk.extend([pp for pp in self._precomputedellipsis[p] |
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1137 if pp != nullrev]) |
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1138 else: |
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1139 # In this case, we've got an ellipsis with parents |
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1140 # outside the current bundle (likely an |
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1141 # incremental pull). We "know" that we can use the |
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1142 # value of this same revlog at whatever revision |
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1143 # is pointed to by linknode. "Know" is in scare |
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1144 # quotes because I haven't done enough examination |
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1145 # of edge cases to convince myself this is really |
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1146 # a fact - it works for all the (admittedly |
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1147 # thorough) cases in our testsuite, but I would be |
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1148 # somewhat unsurprised to find a case in the wild |
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1149 # where this breaks down a bit. That said, I don't |
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1150 # know if it would hurt anything. |
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1151 for i in pycompat.xrange(rev, 0, -1): |
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1152 if store.linkrev(i) == clrev: |
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1153 return i |
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1154 # We failed to resolve a parent for this node, so |
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1155 # we crash the changegroup construction. |
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1156 raise error.Abort( |
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1157 'unable to resolve parent while packing %r %r' |
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1158 ' for changeset %r' % (store.indexfile, rev, clrev)) |
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1159 |
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1160 return nullrev |
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1161 |
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1162 if not linkparents or ( |
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1163 store.parentrevs(rev) == (nullrev, nullrev)): |
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1164 p1, p2 = nullrev, nullrev |
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1165 elif len(linkparents) == 1: |
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1166 p1, = sorted(local(p) for p in linkparents) |
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1167 p2 = nullrev |
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1168 else: |
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1169 p1, p2 = sorted(local(p) for p in linkparents) |
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1170 |
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1171 n = store.node(rev) |
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1172 p1n, p2n = store.node(p1), store.node(p2) |
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1173 flags = store.flags(rev) |
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1174 flags |= revlog.REVIDX_ELLIPSIS |
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1175 |
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1176 # TODO: try and actually send deltas for ellipsis data blocks |
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1177 data = store.revision(n) |
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1178 diffheader = mdiff.trivialdiffheader(len(data)) |
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1179 |
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1180 return revisiondelta( |
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1181 node=n, |
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1182 p1node=p1n, |
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1183 p2node=p2n, |
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1184 basenode=nullid, |
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1185 linknode=linknode, |
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1186 flags=flags, |
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1187 deltachunks=(diffheader, data), |
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1188 ) |
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1189 |
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1190 def _makecg1packer(repo, filematcher, bundlecaps, ellipses=False, |
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1191 shallow=False, ellipsisroots=None, fullnodes=None): |
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1192 builddeltaheader = lambda d: _CHANGEGROUPV1_DELTA_HEADER.pack( |
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1193 d.node, d.p1node, d.p2node, d.linknode) |
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1194 |
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1195 return cgpacker(repo, filematcher, b'01', |
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1196 useprevdelta=True, |
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1197 allowreorder=None, |
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1198 builddeltaheader=builddeltaheader, |
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1199 manifestsend=b'', |
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1200 bundlecaps=bundlecaps, |
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1201 ellipses=ellipses, |
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1202 shallow=shallow, |
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1203 ellipsisroots=ellipsisroots, |
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1204 fullnodes=fullnodes) |
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1205 |
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1206 def _makecg2packer(repo, filematcher, bundlecaps, ellipses=False, |
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1207 shallow=False, ellipsisroots=None, fullnodes=None): |
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1208 builddeltaheader = lambda d: _CHANGEGROUPV2_DELTA_HEADER.pack( |
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1209 d.node, d.p1node, d.p2node, d.basenode, d.linknode) |
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1210 |
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1211 # Since generaldelta is directly supported by cg2, reordering |
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1212 # generally doesn't help, so we disable it by default (treating |
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1213 # bundle.reorder=auto just like bundle.reorder=False). |
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1214 return cgpacker(repo, filematcher, b'02', |
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1215 useprevdelta=False, |
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1216 allowreorder=False, |
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1217 builddeltaheader=builddeltaheader, |
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1218 manifestsend=b'', |
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1219 bundlecaps=bundlecaps, |
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1220 ellipses=ellipses, |
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1221 shallow=shallow, |
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1222 ellipsisroots=ellipsisroots, |
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1223 fullnodes=fullnodes) |
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1224 |
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1225 def _makecg3packer(repo, filematcher, bundlecaps, ellipses=False, |
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1226 shallow=False, ellipsisroots=None, fullnodes=None): |
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1227 builddeltaheader = lambda d: _CHANGEGROUPV3_DELTA_HEADER.pack( |
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1228 d.node, d.p1node, d.p2node, d.basenode, d.linknode, d.flags) |
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1229 |
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1230 return cgpacker(repo, filematcher, b'03', |
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1231 useprevdelta=False, |
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1232 allowreorder=False, |
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1233 builddeltaheader=builddeltaheader, |
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1234 manifestsend=closechunk(), |
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1235 bundlecaps=bundlecaps, |
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1236 ellipses=ellipses, |
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1237 shallow=shallow, |
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1238 ellipsisroots=ellipsisroots, |
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1239 fullnodes=fullnodes) |
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1240 |
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|
1241 _packermap = {'01': (_makecg1packer, cg1unpacker), |
26709
42733e956887
changegroup: reformat packermap and add comment
Augie Fackler <augie@google.com>
parents:
26708
diff
changeset
|
1242 # cg2 adds support for exchanging generaldelta |
38894
19344024a8e1
changegroup: define functions for creating changegroup packers
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38893
diff
changeset
|
1243 '02': (_makecg2packer, cg2unpacker), |
27753
d4071cc73f46
changegroup3: add empty chunk separating directories and files
Martin von Zweigbergk <martinvonz@google.com>
parents:
27752
diff
changeset
|
1244 # cg3 adds support for exchanging revlog flags and treemanifests |
38894
19344024a8e1
changegroup: define functions for creating changegroup packers
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38893
diff
changeset
|
1245 '03': (_makecg3packer, cg3unpacker), |
26709
42733e956887
changegroup: reformat packermap and add comment
Augie Fackler <augie@google.com>
parents:
26708
diff
changeset
|
1246 } |
23168
a92ba36a1a9d
changegroup: add a "packermap" dictionary to track different packer versions
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22971
diff
changeset
|
1247 |
30627
7ace5304fec5
changegroup: pass 'repo' to allsupportedversions
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
30626
diff
changeset
|
1248 def allsupportedversions(repo): |
27928
c0f11347b107
changegroup: don't support versions 01 and 02 with treemanifests
Martin von Zweigbergk <martinvonz@google.com>
parents:
27920
diff
changeset
|
1249 versions = set(_packermap.keys()) |
30627
7ace5304fec5
changegroup: pass 'repo' to allsupportedversions
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
30626
diff
changeset
|
1250 if not (repo.ui.configbool('experimental', 'changegroup3') or |
30628
a001cd7296a5
changegroup: simplify logic around enabling changegroup 03
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
30627
diff
changeset
|
1251 repo.ui.configbool('experimental', 'treemanifest') or |
a001cd7296a5
changegroup: simplify logic around enabling changegroup 03
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
30627
diff
changeset
|
1252 'treemanifest' in repo.requirements): |
30626
438532c99b54
changegroup: simplify 'allsupportedversions' logic
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
30589
diff
changeset
|
1253 versions.discard('03') |
27953
88609cfa3745
changegroup: fix pulling to treemanifest repo from flat repo (issue5066)
Martin von Zweigbergk <martinvonz@google.com>
parents:
27946
diff
changeset
|
1254 return versions |
88609cfa3745
changegroup: fix pulling to treemanifest repo from flat repo (issue5066)
Martin von Zweigbergk <martinvonz@google.com>
parents:
27946
diff
changeset
|
1255 |
88609cfa3745
changegroup: fix pulling to treemanifest repo from flat repo (issue5066)
Martin von Zweigbergk <martinvonz@google.com>
parents:
27946
diff
changeset
|
1256 # Changegroup versions that can be applied to the repo |
88609cfa3745
changegroup: fix pulling to treemanifest repo from flat repo (issue5066)
Martin von Zweigbergk <martinvonz@google.com>
parents:
27946
diff
changeset
|
1257 def supportedincomingversions(repo): |
30628
a001cd7296a5
changegroup: simplify logic around enabling changegroup 03
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
30627
diff
changeset
|
1258 return allsupportedversions(repo) |
27953
88609cfa3745
changegroup: fix pulling to treemanifest repo from flat repo (issue5066)
Martin von Zweigbergk <martinvonz@google.com>
parents:
27946
diff
changeset
|
1259 |
88609cfa3745
changegroup: fix pulling to treemanifest repo from flat repo (issue5066)
Martin von Zweigbergk <martinvonz@google.com>
parents:
27946
diff
changeset
|
1260 # Changegroup versions that can be created from the repo |
88609cfa3745
changegroup: fix pulling to treemanifest repo from flat repo (issue5066)
Martin von Zweigbergk <martinvonz@google.com>
parents:
27946
diff
changeset
|
1261 def supportedoutgoingversions(repo): |
30627
7ace5304fec5
changegroup: pass 'repo' to allsupportedversions
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
30626
diff
changeset
|
1262 versions = allsupportedversions(repo) |
27953
88609cfa3745
changegroup: fix pulling to treemanifest repo from flat repo (issue5066)
Martin von Zweigbergk <martinvonz@google.com>
parents:
27946
diff
changeset
|
1263 if 'treemanifest' in repo.requirements: |
27928
c0f11347b107
changegroup: don't support versions 01 and 02 with treemanifests
Martin von Zweigbergk <martinvonz@google.com>
parents:
27920
diff
changeset
|
1264 # Versions 01 and 02 support only flat manifests and it's just too |
c0f11347b107
changegroup: don't support versions 01 and 02 with treemanifests
Martin von Zweigbergk <martinvonz@google.com>
parents:
27920
diff
changeset
|
1265 # expensive to convert between the flat manifest and tree manifest on |
c0f11347b107
changegroup: don't support versions 01 and 02 with treemanifests
Martin von Zweigbergk <martinvonz@google.com>
parents:
27920
diff
changeset
|
1266 # the fly. Since tree manifests are hashed differently, all of history |
c0f11347b107
changegroup: don't support versions 01 and 02 with treemanifests
Martin von Zweigbergk <martinvonz@google.com>
parents:
27920
diff
changeset
|
1267 # would have to be converted. Instead, we simply don't even pretend to |
c0f11347b107
changegroup: don't support versions 01 and 02 with treemanifests
Martin von Zweigbergk <martinvonz@google.com>
parents:
27920
diff
changeset
|
1268 # support versions 01 and 02. |
c0f11347b107
changegroup: don't support versions 01 and 02 with treemanifests
Martin von Zweigbergk <martinvonz@google.com>
parents:
27920
diff
changeset
|
1269 versions.discard('01') |
c0f11347b107
changegroup: don't support versions 01 and 02 with treemanifests
Martin von Zweigbergk <martinvonz@google.com>
parents:
27920
diff
changeset
|
1270 versions.discard('02') |
38835
a232e6744ba3
narrow: move requirement constant from changegroup to repository
Martin von Zweigbergk <martinvonz@google.com>
parents:
38806
diff
changeset
|
1271 if repository.NARROW_REQUIREMENT in repo.requirements: |
36465
94709406f10d
narrow: move changegroup.supportedoutgoingversions() override to core
Martin von Zweigbergk <martinvonz@google.com>
parents:
36464
diff
changeset
|
1272 # Versions 01 and 02 don't support revlog flags, and we need to |
94709406f10d
narrow: move changegroup.supportedoutgoingversions() override to core
Martin von Zweigbergk <martinvonz@google.com>
parents:
36464
diff
changeset
|
1273 # support that for stripping and unbundling to work. |
94709406f10d
narrow: move changegroup.supportedoutgoingversions() override to core
Martin von Zweigbergk <martinvonz@google.com>
parents:
36464
diff
changeset
|
1274 versions.discard('01') |
94709406f10d
narrow: move changegroup.supportedoutgoingversions() override to core
Martin von Zweigbergk <martinvonz@google.com>
parents:
36464
diff
changeset
|
1275 versions.discard('02') |
37132
a54113fcc8c9
lfs: move the 'supportedoutgoingversions' handling to changegroup.py
Matt Harbison <matt_harbison@yahoo.com>
parents:
37084
diff
changeset
|
1276 if LFS_REQUIREMENT in repo.requirements: |
a54113fcc8c9
lfs: move the 'supportedoutgoingversions' handling to changegroup.py
Matt Harbison <matt_harbison@yahoo.com>
parents:
37084
diff
changeset
|
1277 # Versions 01 and 02 don't support revlog flags, and we need to |
a54113fcc8c9
lfs: move the 'supportedoutgoingversions' handling to changegroup.py
Matt Harbison <matt_harbison@yahoo.com>
parents:
37084
diff
changeset
|
1278 # mark LFS entries with REVIDX_EXTSTORED. |
a54113fcc8c9
lfs: move the 'supportedoutgoingversions' handling to changegroup.py
Matt Harbison <matt_harbison@yahoo.com>
parents:
37084
diff
changeset
|
1279 versions.discard('01') |
a54113fcc8c9
lfs: move the 'supportedoutgoingversions' handling to changegroup.py
Matt Harbison <matt_harbison@yahoo.com>
parents:
37084
diff
changeset
|
1280 versions.discard('02') |
a54113fcc8c9
lfs: move the 'supportedoutgoingversions' handling to changegroup.py
Matt Harbison <matt_harbison@yahoo.com>
parents:
37084
diff
changeset
|
1281 |
27752
29cfc474c5fd
changegroup3: introduce experimental.changegroup3 boolean config
Martin von Zweigbergk <martinvonz@google.com>
parents:
27751
diff
changeset
|
1282 return versions |
27751
a40e2f7fe49d
changegroup: hide packermap behind methods
Martin von Zweigbergk <martinvonz@google.com>
parents:
27739
diff
changeset
|
1283 |
34144
91f0677dc920
repair: preserve phase also when not using generaldelta (issue5678)
Martin von Zweigbergk <martinvonz@google.com>
parents:
33461
diff
changeset
|
1284 def localversion(repo): |
91f0677dc920
repair: preserve phase also when not using generaldelta (issue5678)
Martin von Zweigbergk <martinvonz@google.com>
parents:
33461
diff
changeset
|
1285 # Finds the best version to use for bundles that are meant to be used |
91f0677dc920
repair: preserve phase also when not using generaldelta (issue5678)
Martin von Zweigbergk <martinvonz@google.com>
parents:
33461
diff
changeset
|
1286 # locally, such as those from strip and shelve, and temporary bundles. |
91f0677dc920
repair: preserve phase also when not using generaldelta (issue5678)
Martin von Zweigbergk <martinvonz@google.com>
parents:
33461
diff
changeset
|
1287 return max(supportedoutgoingversions(repo)) |
91f0677dc920
repair: preserve phase also when not using generaldelta (issue5678)
Martin von Zweigbergk <martinvonz@google.com>
parents:
33461
diff
changeset
|
1288 |
27929
3b2ac2115464
changegroup: introduce safeversion()
Martin von Zweigbergk <martinvonz@google.com>
parents:
27928
diff
changeset
|
1289 def safeversion(repo): |
3b2ac2115464
changegroup: introduce safeversion()
Martin von Zweigbergk <martinvonz@google.com>
parents:
27928
diff
changeset
|
1290 # Finds the smallest version that it's safe to assume clients of the repo |
27931
1289a122cf3f
shelve: use cg3 for treemanifests
Martin von Zweigbergk <martinvonz@google.com>
parents:
27929
diff
changeset
|
1291 # will support. For example, all hg versions that support generaldelta also |
1289a122cf3f
shelve: use cg3 for treemanifests
Martin von Zweigbergk <martinvonz@google.com>
parents:
27929
diff
changeset
|
1292 # support changegroup 02. |
27953
88609cfa3745
changegroup: fix pulling to treemanifest repo from flat repo (issue5066)
Martin von Zweigbergk <martinvonz@google.com>
parents:
27946
diff
changeset
|
1293 versions = supportedoutgoingversions(repo) |
27929
3b2ac2115464
changegroup: introduce safeversion()
Martin von Zweigbergk <martinvonz@google.com>
parents:
27928
diff
changeset
|
1294 if 'generaldelta' in repo.requirements: |
3b2ac2115464
changegroup: introduce safeversion()
Martin von Zweigbergk <martinvonz@google.com>
parents:
27928
diff
changeset
|
1295 versions.discard('01') |
3b2ac2115464
changegroup: introduce safeversion()
Martin von Zweigbergk <martinvonz@google.com>
parents:
27928
diff
changeset
|
1296 assert versions |
3b2ac2115464
changegroup: introduce safeversion()
Martin von Zweigbergk <martinvonz@google.com>
parents:
27928
diff
changeset
|
1297 return min(versions) |
3b2ac2115464
changegroup: introduce safeversion()
Martin von Zweigbergk <martinvonz@google.com>
parents:
27928
diff
changeset
|
1298 |
38904
cdb9bc216771
changegroup: declare shallow flag in constructor
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38903
diff
changeset
|
1299 def getbundler(version, repo, bundlecaps=None, filematcher=None, |
38909
1af339c22aeb
changegroup: move fullnodes into cgpacker
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38908
diff
changeset
|
1300 ellipses=False, shallow=False, ellipsisroots=None, |
1af339c22aeb
changegroup: move fullnodes into cgpacker
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38908
diff
changeset
|
1301 fullnodes=None): |
27953
88609cfa3745
changegroup: fix pulling to treemanifest repo from flat repo (issue5066)
Martin von Zweigbergk <martinvonz@google.com>
parents:
27946
diff
changeset
|
1302 assert version in supportedoutgoingversions(repo) |
38794
1d01cf0416a5
changegroup: move file matcher from narrow extension
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38783
diff
changeset
|
1303 |
1d01cf0416a5
changegroup: move file matcher from narrow extension
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38783
diff
changeset
|
1304 if filematcher is None: |
1d01cf0416a5
changegroup: move file matcher from narrow extension
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38783
diff
changeset
|
1305 filematcher = matchmod.alwaysmatcher(repo.root, '') |
1d01cf0416a5
changegroup: move file matcher from narrow extension
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38783
diff
changeset
|
1306 |
1d01cf0416a5
changegroup: move file matcher from narrow extension
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38783
diff
changeset
|
1307 if version == '01' and not filematcher.always(): |
1d01cf0416a5
changegroup: move file matcher from narrow extension
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38783
diff
changeset
|
1308 raise error.ProgrammingError('version 01 changegroups do not support ' |
1d01cf0416a5
changegroup: move file matcher from narrow extension
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38783
diff
changeset
|
1309 'sparse file matchers') |
1d01cf0416a5
changegroup: move file matcher from narrow extension
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38783
diff
changeset
|
1310 |
38908
1469584ad5fe
changegroup: specify ellipses mode explicitly
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38907
diff
changeset
|
1311 if ellipses and version in (b'01', b'02'): |
1469584ad5fe
changegroup: specify ellipses mode explicitly
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38907
diff
changeset
|
1312 raise error.Abort( |
1469584ad5fe
changegroup: specify ellipses mode explicitly
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38907
diff
changeset
|
1313 _('ellipsis nodes require at least cg3 on client and server, ' |
1469584ad5fe
changegroup: specify ellipses mode explicitly
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38907
diff
changeset
|
1314 'but negotiated version %s') % version) |
1469584ad5fe
changegroup: specify ellipses mode explicitly
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38907
diff
changeset
|
1315 |
38794
1d01cf0416a5
changegroup: move file matcher from narrow extension
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38783
diff
changeset
|
1316 # Requested files could include files not in the local store. So |
1d01cf0416a5
changegroup: move file matcher from narrow extension
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38783
diff
changeset
|
1317 # filter those out. |
1d01cf0416a5
changegroup: move file matcher from narrow extension
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38783
diff
changeset
|
1318 filematcher = matchmod.intersectmatchers(repo.narrowmatch(), |
1d01cf0416a5
changegroup: move file matcher from narrow extension
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38783
diff
changeset
|
1319 filematcher) |
1d01cf0416a5
changegroup: move file matcher from narrow extension
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38783
diff
changeset
|
1320 |
38894
19344024a8e1
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
1321 fn = _packermap[version][0] |
38908
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
38907
diff
changeset
|
1322 return fn(repo, filematcher, bundlecaps, ellipses=ellipses, |
38909
1af339c22aeb
changegroup: move fullnodes into cgpacker
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38908
diff
changeset
|
1323 shallow=shallow, ellipsisroots=ellipsisroots, |
1af339c22aeb
changegroup: move fullnodes into cgpacker
Gregory Szorc <gregory.szorc@gmail.com>
parents:
38908
diff
changeset
|
1324 fullnodes=fullnodes) |
27751
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Martin von Zweigbergk <martinvonz@google.com>
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diff
changeset
|
1325 |
29593
953839de96ab
bundle2: store changeset count when creating file bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29371
diff
changeset
|
1326 def getunbundler(version, fh, alg, extras=None): |
953839de96ab
bundle2: store changeset count when creating file bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29371
diff
changeset
|
1327 return _packermap[version][1](fh, alg, extras=extras) |
27751
a40e2f7fe49d
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Martin von Zweigbergk <martinvonz@google.com>
parents:
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diff
changeset
|
1328 |
20926
7c1ed40e3325
localrepo: move the changegroupinfo method in changegroup module
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20925
diff
changeset
|
1329 def _changegroupinfo(repo, nodes, source): |
7c1ed40e3325
localrepo: move the changegroupinfo method in changegroup module
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20925
diff
changeset
|
1330 if repo.ui.verbose or source == 'bundle': |
7c1ed40e3325
localrepo: move the changegroupinfo method in changegroup module
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20925
diff
changeset
|
1331 repo.ui.status(_("%d changesets found\n") % len(nodes)) |
7c1ed40e3325
localrepo: move the changegroupinfo method in changegroup module
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20925
diff
changeset
|
1332 if repo.ui.debugflag: |
7c1ed40e3325
localrepo: move the changegroupinfo method in changegroup module
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20925
diff
changeset
|
1333 repo.ui.debug("list of changesets:\n") |
7c1ed40e3325
localrepo: move the changegroupinfo method in changegroup module
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20925
diff
changeset
|
1334 for node in nodes: |
7c1ed40e3325
localrepo: move the changegroupinfo method in changegroup module
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20925
diff
changeset
|
1335 repo.ui.debug("%s\n" % hex(node)) |
7c1ed40e3325
localrepo: move the changegroupinfo method in changegroup module
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20925
diff
changeset
|
1336 |
34096
f85dfde1731a
changegroup: replace getsubset with makechangegroup
Durham Goode <durham@fb.com>
parents:
34091
diff
changeset
|
1337 def makechangegroup(repo, outgoing, version, source, fastpath=False, |
f85dfde1731a
changegroup: replace getsubset with makechangegroup
Durham Goode <durham@fb.com>
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34091
diff
changeset
|
1338 bundlecaps=None): |
f85dfde1731a
changegroup: replace getsubset with makechangegroup
Durham Goode <durham@fb.com>
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diff
changeset
|
1339 cgstream = makestream(repo, outgoing, version, source, |
f85dfde1731a
changegroup: replace getsubset with makechangegroup
Durham Goode <durham@fb.com>
parents:
34091
diff
changeset
|
1340 fastpath=fastpath, bundlecaps=bundlecaps) |
f85dfde1731a
changegroup: replace getsubset with makechangegroup
Durham Goode <durham@fb.com>
parents:
34091
diff
changeset
|
1341 return getunbundler(version, util.chunkbuffer(cgstream), None, |
f85dfde1731a
changegroup: replace getsubset with makechangegroup
Durham Goode <durham@fb.com>
parents:
34091
diff
changeset
|
1342 {'clcount': len(outgoing.missing) }) |
f85dfde1731a
changegroup: replace getsubset with makechangegroup
Durham Goode <durham@fb.com>
parents:
34091
diff
changeset
|
1343 |
34103
92f1e2be8ab6
changegroup: rename getsubsetraw to makestream
Durham Goode <durham@fb.com>
parents:
34101
diff
changeset
|
1344 def makestream(repo, outgoing, version, source, fastpath=False, |
38794
1d01cf0416a5
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changeset
|
1345 bundlecaps=None, filematcher=None): |
1d01cf0416a5
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38783
diff
changeset
|
1346 bundler = getbundler(version, repo, bundlecaps=bundlecaps, |
1d01cf0416a5
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
38783
diff
changeset
|
1347 filematcher=filematcher) |
34103
92f1e2be8ab6
changegroup: rename getsubsetraw to makestream
Durham Goode <durham@fb.com>
parents:
34101
diff
changeset
|
1348 |
20925
5174c48ed8d8
localrepo: move the _changegroupsubset method in changegroup module
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20675
diff
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|
1349 repo = repo.unfiltered() |
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1350 commonrevs = outgoing.common |
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1351 csets = outgoing.missing |
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1352 heads = outgoing.missingheads |
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1353 # We go through the fast path if we get told to, or if all (unfiltered |
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1354 # heads have been requested (since we then know there all linkrevs will |
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1355 # be pulled by the client). |
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1356 heads.sort() |
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1357 fastpathlinkrev = fastpath or ( |
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1358 repo.filtername is None and heads == sorted(repo.heads())) |
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1359 |
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1360 repo.hook('preoutgoing', throw=True, source=source) |
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1361 _changegroupinfo(repo, csets, source) |
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1362 return bundler.generate(commonrevs, csets, fastpathlinkrev, source) |
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1363 |
28361
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1364 def _addchangegroupfiles(repo, source, revmap, trp, expectedfiles, needfiles): |
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1365 revisions = 0 |
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1366 files = 0 |
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1367 progress = repo.ui.makeprogress(_('files'), unit=_('files'), |
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1368 total=expectedfiles) |
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1369 for chunkdata in iter(source.filelogheader, {}): |
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1370 files += 1 |
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1371 f = chunkdata["filename"] |
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1372 repo.ui.debug("adding %s revisions\n" % f) |
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1373 progress.increment() |
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1374 fl = repo.file(f) |
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1375 o = len(fl) |
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1376 try: |
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1377 deltas = source.deltaiter() |
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1378 if not fl.addgroup(deltas, revmap, trp): |
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1379 raise error.Abort(_("received file revlog group is empty")) |
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1380 except error.CensoredBaseError as e: |
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1381 raise error.Abort(_("received delta base is censored: %s") % e) |
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1382 revisions += len(fl) - o |
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1383 if f in needfiles: |
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1384 needs = needfiles[f] |
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1385 for new in pycompat.xrange(o, len(fl)): |
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1386 n = fl.node(new) |
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1387 if n in needs: |
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1388 needs.remove(n) |
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1389 else: |
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1390 raise error.Abort( |
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1391 _("received spurious file revlog entry")) |
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1392 if not needs: |
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1393 del needfiles[f] |
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1394 progress.complete() |
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1395 |
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1396 for f, needs in needfiles.iteritems(): |
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1397 fl = repo.file(f) |
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1398 for n in needs: |
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1399 try: |
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1400 fl.rev(n) |
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1401 except error.LookupError: |
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1402 raise error.Abort( |
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1403 _('missing file data for %s:%s - run hg verify') % |
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1404 (f, hex(n))) |
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1405 |
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1406 return revisions, files |