Mercurial > public > mercurial-scm > hg
annotate mercurial/changegroup.py @ 29371:1b699c7eb2b7
changegroup: don't send empty subdirectory manifest groups
When grafting/rebasing, it is common for multiple changesets to make
the same change to a subdirectory. When writing the revlog for the
directory, the revlog code already takes care of not writing the entry
again. In 0c2a088ffcc5 (changegroup: prune subdirectory dirlogs too,
2016-02-12), I added the corresponding code in changegroup (not
sending entries the client already has), but I forgot to avoid sending
the entire changegroup if no nodes remained in the pruned
set. Although that's harmless besides the wasted network traffic, the
receiving side was checking for it (copied from the changegroup code
for handling files). This resulted in the client crashing with:
abort: received dir revlog group is empty
Fix by simply not emitting a changegroup for the directory if there
were no changes is it. This matches how files are handled.
author | Martin von Zweigbergk <martinvonz@google.com> |
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date | Thu, 16 Jun 2016 15:15:33 -0700 |
parents | 1b7d907ec18a |
children | 953839de96ab |
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 tempfile |
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13 import weakref |
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14 |
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15 from .i18n import _ |
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16 from .node import ( |
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17 hex, |
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18 nullid, |
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19 nullrev, |
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20 short, |
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21 ) |
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22 |
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23 from . import ( |
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24 branchmap, |
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25 dagutil, |
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26 discovery, |
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27 error, |
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28 mdiff, |
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29 phases, |
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30 util, |
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31 ) |
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32 |
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33 _CHANGEGROUPV1_DELTA_HEADER = "20s20s20s20s" |
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34 _CHANGEGROUPV2_DELTA_HEADER = "20s20s20s20s20s" |
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35 _CHANGEGROUPV3_DELTA_HEADER = ">20s20s20s20s20sH" |
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36 |
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37 def readexactly(stream, n): |
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38 '''read n bytes from stream.read and abort if less was available''' |
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39 s = stream.read(n) |
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40 if len(s) < n: |
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41 raise error.Abort(_("stream ended unexpectedly" |
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42 " (got %d bytes, expected %d)") |
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43 % (len(s), n)) |
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44 return s |
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45 |
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46 def getchunk(stream): |
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47 """return the next chunk from stream as a string""" |
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48 d = readexactly(stream, 4) |
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49 l = struct.unpack(">l", d)[0] |
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50 if l <= 4: |
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51 if l: |
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52 raise error.Abort(_("invalid chunk length %d") % l) |
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53 return "" |
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54 return readexactly(stream, l - 4) |
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55 |
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56 def chunkheader(length): |
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57 """return a changegroup chunk header (string)""" |
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58 return struct.pack(">l", length + 4) |
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59 |
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60 def closechunk(): |
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61 """return a changegroup chunk header (string) for a zero-length chunk""" |
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62 return struct.pack(">l", 0) |
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63 |
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64 def combineresults(results): |
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65 """logic to combine 0 or more addchangegroup results into one""" |
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66 changedheads = 0 |
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67 result = 1 |
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68 for ret in results: |
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69 # If any changegroup result is 0, return 0 |
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70 if ret == 0: |
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71 result = 0 |
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72 break |
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73 if ret < -1: |
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74 changedheads += ret + 1 |
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75 elif ret > 1: |
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76 changedheads += ret - 1 |
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77 if changedheads > 0: |
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78 result = 1 + changedheads |
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79 elif changedheads < 0: |
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80 result = -1 + changedheads |
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81 return result |
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82 |
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83 def writechunks(ui, chunks, filename, vfs=None): |
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84 """Write chunks to a file and return its filename. |
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85 |
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86 The stream is assumed to be a bundle file. |
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87 Existing files will not be overwritten. |
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88 If no filename is specified, a temporary file is created. |
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89 """ |
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90 fh = None |
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91 cleanup = None |
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92 try: |
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93 if filename: |
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94 if vfs: |
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95 fh = vfs.open(filename, "wb") |
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96 else: |
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97 fh = open(filename, "wb") |
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98 else: |
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99 fd, filename = tempfile.mkstemp(prefix="hg-bundle-", suffix=".hg") |
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100 fh = os.fdopen(fd, "wb") |
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101 cleanup = filename |
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102 for c in chunks: |
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103 fh.write(c) |
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104 cleanup = None |
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105 return filename |
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106 finally: |
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107 if fh is not None: |
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108 fh.close() |
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109 if cleanup is not None: |
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110 if filename and vfs: |
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111 vfs.unlink(cleanup) |
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112 else: |
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113 os.unlink(cleanup) |
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114 |
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115 class cg1unpacker(object): |
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116 """Unpacker for cg1 changegroup streams. |
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117 |
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118 A changegroup unpacker handles the framing of the revision data in |
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119 the wire format. Most consumers will want to use the apply() |
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120 method to add the changes from the changegroup to a repository. |
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121 |
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122 If you're forwarding a changegroup unmodified to another consumer, |
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123 use getchunks(), which returns an iterator of changegroup |
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124 chunks. This is mostly useful for cases where you need to know the |
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125 data stream has ended by observing the end of the changegroup. |
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126 |
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127 deltachunk() is useful only if you're applying delta data. Most |
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128 consumers should prefer apply() instead. |
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129 |
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130 A few other public methods exist. Those are used only for |
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131 bundlerepo and some debug commands - their use is discouraged. |
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132 """ |
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133 deltaheader = _CHANGEGROUPV1_DELTA_HEADER |
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134 deltaheadersize = struct.calcsize(deltaheader) |
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135 version = '01' |
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136 _grouplistcount = 1 # One list of files after the manifests |
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137 |
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138 def __init__(self, fh, alg): |
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139 if alg == 'UN': |
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140 alg = None # get more modern without breaking too much |
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141 if not alg in util.decompressors: |
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142 raise error.Abort(_('unknown stream compression type: %s') |
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143 % alg) |
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144 if alg == 'BZ': |
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145 alg = '_truncatedBZ' |
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146 self._stream = util.decompressors[alg](fh) |
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147 self._type = alg |
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148 self.callback = None |
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149 |
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150 # These methods (compressed, read, seek, tell) all appear to only |
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151 # be used by bundlerepo, but it's a little hard to tell. |
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152 def compressed(self): |
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153 return self._type is not None |
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154 def read(self, l): |
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155 return self._stream.read(l) |
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156 def seek(self, pos): |
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157 return self._stream.seek(pos) |
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158 def tell(self): |
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159 return self._stream.tell() |
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160 def close(self): |
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161 return self._stream.close() |
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162 |
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163 def _chunklength(self): |
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164 d = readexactly(self._stream, 4) |
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165 l = struct.unpack(">l", d)[0] |
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166 if l <= 4: |
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167 if l: |
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168 raise error.Abort(_("invalid chunk length %d") % l) |
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169 return 0 |
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170 if self.callback: |
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171 self.callback() |
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172 return l - 4 |
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173 |
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174 def changelogheader(self): |
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175 """v10 does not have a changelog header chunk""" |
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176 return {} |
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177 |
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178 def manifestheader(self): |
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179 """v10 does not have a manifest header chunk""" |
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180 return {} |
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181 |
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182 def filelogheader(self): |
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183 """return the header of the filelogs chunk, v10 only has the filename""" |
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184 l = self._chunklength() |
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185 if not l: |
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186 return {} |
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187 fname = readexactly(self._stream, l) |
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188 return {'filename': fname} |
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189 |
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190 def _deltaheader(self, headertuple, prevnode): |
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191 node, p1, p2, cs = headertuple |
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192 if prevnode is None: |
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193 deltabase = p1 |
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194 else: |
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195 deltabase = prevnode |
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196 flags = 0 |
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197 return node, p1, p2, deltabase, cs, flags |
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198 |
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199 def deltachunk(self, prevnode): |
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200 l = self._chunklength() |
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201 if not l: |
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202 return {} |
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203 headerdata = readexactly(self._stream, self.deltaheadersize) |
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204 header = struct.unpack(self.deltaheader, headerdata) |
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205 delta = readexactly(self._stream, l - self.deltaheadersize) |
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206 node, p1, p2, deltabase, cs, flags = self._deltaheader(header, prevnode) |
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207 return {'node': node, 'p1': p1, 'p2': p2, 'cs': cs, |
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208 'deltabase': deltabase, 'delta': delta, 'flags': flags} |
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209 |
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210 def getchunks(self): |
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211 """returns all the chunks contains in the bundle |
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212 |
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213 Used when you need to forward the binary stream to a file or another |
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214 network API. To do so, it parse the changegroup data, otherwise it will |
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215 block in case of sshrepo because it don't know the end of the stream. |
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216 """ |
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217 # an empty chunkgroup is the end of the changegroup |
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218 # a changegroup has at least 2 chunkgroups (changelog and manifest). |
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219 # after that, changegroup versions 1 and 2 have a series of groups |
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220 # with one group per file. changegroup 3 has a series of directory |
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221 # manifests before the files. |
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222 count = 0 |
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223 emptycount = 0 |
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224 while emptycount < self._grouplistcount: |
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225 empty = True |
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226 count += 1 |
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227 while True: |
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228 chunk = getchunk(self) |
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229 if not chunk: |
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230 if empty and count > 2: |
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231 emptycount += 1 |
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232 break |
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233 empty = False |
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234 yield chunkheader(len(chunk)) |
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235 pos = 0 |
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236 while pos < len(chunk): |
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237 next = pos + 2**20 |
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238 yield chunk[pos:next] |
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239 pos = next |
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240 yield closechunk() |
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241 |
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242 def _unpackmanifests(self, repo, revmap, trp, prog, numchanges): |
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243 # We know that we'll never have more manifests than we had |
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244 # changesets. |
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245 self.callback = prog(_('manifests'), numchanges) |
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246 # no need to check for empty manifest group here: |
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247 # if the result of the merge of 1 and 2 is the same in 3 and 4, |
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248 # no new manifest will be created and the manifest group will |
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249 # be empty during the pull |
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250 self.manifestheader() |
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251 repo.manifest.addgroup(self, revmap, trp) |
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252 repo.ui.progress(_('manifests'), None) |
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253 self.callback = None |
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254 |
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255 def apply(self, repo, srctype, url, emptyok=False, |
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256 targetphase=phases.draft, expectedtotal=None): |
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257 """Add the changegroup returned by source.read() to this repo. |
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258 srctype is a string like 'push', 'pull', or 'unbundle'. url is |
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259 the URL of the repo where this changegroup is coming from. |
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260 |
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261 Return an integer summarizing the change to this repo: |
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262 - nothing changed or no source: 0 |
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263 - more heads than before: 1+added heads (2..n) |
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264 - fewer heads than before: -1-removed heads (-2..-n) |
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265 - number of heads stays the same: 1 |
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266 """ |
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267 repo = repo.unfiltered() |
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268 def csmap(x): |
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269 repo.ui.debug("add changeset %s\n" % short(x)) |
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270 return len(cl) |
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271 |
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272 def revmap(x): |
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273 return cl.rev(x) |
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274 |
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275 changesets = files = revisions = 0 |
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276 |
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277 try: |
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278 with repo.transaction("\n".join([srctype, |
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279 util.hidepassword(url)])) as tr: |
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280 # The transaction could have been created before and already |
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281 # carries source information. In this case we use the top |
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282 # level data. We overwrite the argument because we need to use |
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283 # the top level value (if they exist) 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', throw=True, **tr.hookargs) |
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287 |
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288 # write changelog data to temp files so concurrent readers |
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289 # will not see an inconsistent view |
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290 cl = repo.changelog |
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291 cl.delayupdate(tr) |
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292 oldheads = cl.heads() |
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293 |
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294 trp = weakref.proxy(tr) |
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295 # pull off the changeset group |
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296 repo.ui.status(_("adding changesets\n")) |
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297 clstart = len(cl) |
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298 class prog(object): |
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299 def __init__(self, step, total): |
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300 self._step = step |
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301 self._total = total |
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302 self._count = 1 |
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303 def __call__(self): |
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304 repo.ui.progress(self._step, self._count, |
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305 unit=_('chunks'), total=self._total) |
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306 self._count += 1 |
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307 self.callback = prog(_('changesets'), expectedtotal) |
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308 |
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309 efiles = set() |
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310 def onchangelog(cl, node): |
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311 efiles.update(cl.readfiles(node)) |
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312 |
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313 self.changelogheader() |
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314 srccontent = cl.addgroup(self, csmap, trp, |
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315 addrevisioncb=onchangelog) |
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316 efiles = len(efiles) |
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317 |
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318 if not (srccontent or emptyok): |
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319 raise error.Abort(_("received changelog group is empty")) |
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320 clend = len(cl) |
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321 changesets = clend - clstart |
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322 repo.ui.progress(_('changesets'), None) |
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323 self.callback = None |
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324 |
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325 # pull off the manifest group |
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326 repo.ui.status(_("adding manifests\n")) |
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327 self._unpackmanifests(repo, revmap, trp, prog, changesets) |
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328 |
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329 needfiles = {} |
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330 if repo.ui.configbool('server', 'validate', default=False): |
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331 # validate incoming csets have their manifests |
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332 for cset in xrange(clstart, clend): |
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333 mfnode = repo.changelog.read( |
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334 repo.changelog.node(cset))[0] |
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335 mfest = repo.manifest.readdelta(mfnode) |
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336 # store file nodes 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 dh = 0 |
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348 if oldheads: |
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349 heads = cl.heads() |
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350 dh = 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 dh -= 1 |
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354 htext = "" |
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355 if dh: |
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356 htext = _(" (%+d heads)") % dh |
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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', throw=True, **hookargs) |
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373 |
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374 added = [cl.node(r) for r in xrange(clstart, clend)] |
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375 publishing = repo.publishing() |
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376 if srctype in ('push', 'serve'): |
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377 # Old servers can not push the boundary themselves. |
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378 # New servers won't push the boundary if changeset already |
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379 # exists locally as secret |
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380 # |
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381 # We should not use added here but the list of all change in |
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382 # the bundle |
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383 if publishing: |
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384 phases.advanceboundary(repo, tr, phases.public, |
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385 srccontent) |
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386 else: |
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387 # Those changesets have been pushed from the |
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388 # outside, their phases are going to be pushed |
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389 # alongside. Therefor `targetphase` is |
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390 # ignored. |
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391 phases.advanceboundary(repo, tr, phases.draft, |
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392 srccontent) |
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393 phases.retractboundary(repo, tr, phases.draft, added) |
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394 elif srctype != 'strip': |
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395 # publishing only alter behavior during push |
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396 # |
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397 # strip should not touch boundary at all |
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398 phases.retractboundary(repo, tr, targetphase, added) |
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399 |
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400 if changesets > 0: |
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401 if srctype != 'strip': |
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402 # During strip, branchcache is invalid but |
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403 # coming call to `destroyed` will repair it. |
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404 # In other case we can safely update cache on |
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405 # disk. |
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406 branchmap.updatecache(repo.filtered('served')) |
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407 |
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408 def runhooks(): |
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409 # These hooks run when the lock releases, not when the |
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410 # transaction closes. So it's possible for the changelog |
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411 # to have changed since we last saw it. |
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412 if clstart >= len(repo): |
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413 return |
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414 |
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415 # forcefully update the on-disk branch cache |
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416 repo.ui.debug("updating the branch cache\n") |
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417 repo.hook("changegroup", **hookargs) |
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418 |
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419 for n in added: |
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420 args = hookargs.copy() |
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421 args['node'] = hex(n) |
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422 del args['node_last'] |
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423 repo.hook("incoming", **args) |
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424 |
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425 newheads = [h for h in repo.heads() |
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426 if h not in oldheads] |
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427 repo.ui.log("incoming", |
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428 "%s incoming changes - new heads: %s\n", |
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429 len(added), |
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430 ', '.join([hex(c[:6]) for c in newheads])) |
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431 |
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432 tr.addpostclose('changegroup-runhooks-%020i' % clstart, |
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433 lambda tr: repo._afterlock(runhooks)) |
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434 finally: |
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435 repo.ui.flush() |
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436 # never return 0 here: |
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437 if dh < 0: |
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438 return dh - 1 |
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439 else: |
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440 return dh + 1 |
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441 |
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442 class cg2unpacker(cg1unpacker): |
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443 """Unpacker for cg2 streams. |
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444 |
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445 cg2 streams add support for generaldelta, so the delta header |
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446 format is slightly different. All other features about the data |
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447 remain the same. |
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448 """ |
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449 deltaheader = _CHANGEGROUPV2_DELTA_HEADER |
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450 deltaheadersize = struct.calcsize(deltaheader) |
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451 version = '02' |
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452 |
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453 def _deltaheader(self, headertuple, prevnode): |
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|
454 node, p1, p2, deltabase, cs = headertuple |
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|
455 flags = 0 |
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456 return node, p1, p2, deltabase, cs, flags |
23181
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|
457 |
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458 class cg3unpacker(cg2unpacker): |
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459 """Unpacker for cg3 streams. |
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460 |
27433
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diff
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|
461 cg3 streams add support for exchanging treemanifests and revlog |
27753
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diff
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|
462 flags. It adds the revlog flags to the delta header and an empty chunk |
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|
463 separating manifests and files. |
27432
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464 """ |
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|
465 deltaheader = _CHANGEGROUPV3_DELTA_HEADER |
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|
466 deltaheadersize = struct.calcsize(deltaheader) |
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467 version = '03' |
27920
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468 _grouplistcount = 2 # One list of manifests and one list of files |
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changeset
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469 |
27433
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changeset
|
470 def _deltaheader(self, headertuple, prevnode): |
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changeset
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471 node, p1, p2, deltabase, cs, flags = headertuple |
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472 return node, p1, p2, deltabase, cs, flags |
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|
473 |
27754
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474 def _unpackmanifests(self, repo, revmap, trp, prog, numchanges): |
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475 super(cg3unpacker, self)._unpackmanifests(repo, revmap, trp, prog, |
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diff
changeset
|
476 numchanges) |
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|
477 while True: |
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478 chunkdata = self.filelogheader() |
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479 if not chunkdata: |
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|
480 break |
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481 # If we get here, there are directory manifests in the changegroup |
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diff
changeset
|
482 d = chunkdata["filename"] |
a09f143daaf4
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|
483 repo.ui.debug("adding %s revisions\n" % d) |
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|
484 dirlog = repo.manifest.dirlog(d) |
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changeset
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485 if not dirlog.addgroup(self, revmap, trp): |
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|
486 raise error.Abort(_("received dir revlog group is empty")) |
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diff
changeset
|
487 |
12329
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bundle: push chunkbuffer down into decompress
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changeset
|
488 class headerlessfixup(object): |
7458de933f26
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489 def __init__(self, fh, h): |
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490 self._h = h |
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491 self._fh = fh |
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492 def read(self, n): |
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|
493 if self._h: |
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changeset
|
494 d, self._h = self._h[:n], self._h[n:] |
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changeset
|
495 if len(d) < n: |
13457
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changegroup: verify all stream reads
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parents:
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|
496 d += readexactly(self._fh, n - len(d)) |
12329
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497 return d |
13457
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changeset
|
498 return readexactly(self._fh, n) |
12329
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|
499 |
22390
e2806b8613ca
changegroup: rename bundle-related functions and classes
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|
500 class cg1packer(object): |
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501 deltaheader = _CHANGEGROUPV1_DELTA_HEADER |
23896
becfecaf9087
changegroup.writebundle: HG2Y support
Eric Sumner <ericsumner@fb.com>
parents:
23895
diff
changeset
|
502 version = '01' |
19202
0455fc94ae00
bundle-ng: move gengroup into bundler, pass repo object to bundler
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503 def __init__(self, repo, bundlecaps=None): |
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diff
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504 """Given a source repo, construct a bundler. |
0455fc94ae00
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|
505 |
0455fc94ae00
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changeset
|
506 bundlecaps is optional and can be used to specify the set of |
0455fc94ae00
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diff
changeset
|
507 capabilities which can be used to build the bundle. |
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parents:
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diff
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|
508 """ |
19201
309c439cdbaa
bundle-ng: add bundlecaps argument to getbundle() command
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
19200
diff
changeset
|
509 # Set of capabilities we can use to build the bundle. |
309c439cdbaa
bundle-ng: add bundlecaps argument to getbundle() command
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parents:
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diff
changeset
|
510 if bundlecaps is None: |
309c439cdbaa
bundle-ng: add bundlecaps argument to getbundle() command
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19200
diff
changeset
|
511 bundlecaps = set() |
309c439cdbaa
bundle-ng: add bundlecaps argument to getbundle() command
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parents:
19200
diff
changeset
|
512 self._bundlecaps = bundlecaps |
25831
578fc97904da
generaldelta: mark experimental reordering option
Matt Mackall <mpm@selenic.com>
parents:
25823
diff
changeset
|
513 # experimental config: bundle.reorder |
19202
0455fc94ae00
bundle-ng: move gengroup into bundler, pass repo object to bundler
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diff
changeset
|
514 reorder = repo.ui.config('bundle', 'reorder', 'auto') |
0455fc94ae00
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diff
changeset
|
515 if reorder == 'auto': |
0455fc94ae00
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diff
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|
516 reorder = None |
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|
517 else: |
0455fc94ae00
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diff
changeset
|
518 reorder = util.parsebool(reorder) |
0455fc94ae00
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diff
changeset
|
519 self._repo = repo |
0455fc94ae00
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parents:
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diff
changeset
|
520 self._reorder = reorder |
19208
0b564cf359a7
bundle-ng: move progress handling out of the linkrev callback
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diff
changeset
|
521 self._progress = repo.ui.progress |
23748
4ab66de46a96
bundle: when verbose, show what takes up the space in the generated bundle
Mads Kiilerich <madski@unity3d.com>
parents:
23382
diff
changeset
|
522 if self._repo.ui.verbose and not self._repo.ui.debugflag: |
4ab66de46a96
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parents:
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diff
changeset
|
523 self._verbosenote = self._repo.ui.note |
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bundle: when verbose, show what takes up the space in the generated bundle
Mads Kiilerich <madski@unity3d.com>
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diff
changeset
|
524 else: |
4ab66de46a96
bundle: when verbose, show what takes up the space in the generated bundle
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parents:
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diff
changeset
|
525 self._verbosenote = lambda s: None |
4ab66de46a96
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parents:
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diff
changeset
|
526 |
13831
d69c9510d648
changegroup: introduce bundler objects
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13786
diff
changeset
|
527 def close(self): |
d69c9510d648
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diff
changeset
|
528 return closechunk() |
19200
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parents:
19199
diff
changeset
|
529 |
13831
d69c9510d648
changegroup: introduce bundler objects
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parents:
13786
diff
changeset
|
530 def fileheader(self, fname): |
d69c9510d648
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parents:
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diff
changeset
|
531 return chunkheader(len(fname)) + fname |
19200
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bundle-ng: move group into the bundler
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changeset
|
532 |
29236
1b7d907ec18a
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Augie Fackler <augie@google.com>
parents:
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diff
changeset
|
533 # Extracted both for clarity and for overriding in extensions. |
1b7d907ec18a
changegroup: extract method that sorts nodes to send
Augie Fackler <augie@google.com>
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diff
changeset
|
534 def _sortgroup(self, revlog, nodelist, lookup): |
1b7d907ec18a
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parents:
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diff
changeset
|
535 """Sort nodes for change group and turn them into revnums.""" |
1b7d907ec18a
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parents:
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diff
changeset
|
536 # for generaldelta revlogs, we linearize the revs; this will both be |
1b7d907ec18a
changegroup: extract method that sorts nodes to send
Augie Fackler <augie@google.com>
parents:
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diff
changeset
|
537 # much quicker and generate a much smaller bundle |
1b7d907ec18a
changegroup: extract method that sorts nodes to send
Augie Fackler <augie@google.com>
parents:
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diff
changeset
|
538 if (revlog._generaldelta and self._reorder is None) or self._reorder: |
1b7d907ec18a
changegroup: extract method that sorts nodes to send
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parents:
28666
diff
changeset
|
539 dag = dagutil.revlogdag(revlog) |
1b7d907ec18a
changegroup: extract method that sorts nodes to send
Augie Fackler <augie@google.com>
parents:
28666
diff
changeset
|
540 return dag.linearize(set(revlog.rev(n) for n in nodelist)) |
1b7d907ec18a
changegroup: extract method that sorts nodes to send
Augie Fackler <augie@google.com>
parents:
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diff
changeset
|
541 else: |
1b7d907ec18a
changegroup: extract method that sorts nodes to send
Augie Fackler <augie@google.com>
parents:
28666
diff
changeset
|
542 return sorted([revlog.rev(n) for n in nodelist]) |
1b7d907ec18a
changegroup: extract method that sorts nodes to send
Augie Fackler <augie@google.com>
parents:
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diff
changeset
|
543 |
24912
e285b98c65cc
changegroup.group: drop 'reorder' parameter
Martin von Zweigbergk <martinvonz@google.com>
parents:
24911
diff
changeset
|
544 def group(self, nodelist, revlog, lookup, units=None): |
19200
4cfdec944edf
bundle-ng: move group into the bundler
Sune Foldager <cryo@cyanite.org>
parents:
19199
diff
changeset
|
545 """Calculate a delta group, yielding a sequence of changegroup chunks |
4cfdec944edf
bundle-ng: move group into the bundler
Sune Foldager <cryo@cyanite.org>
parents:
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diff
changeset
|
546 (strings). |
4cfdec944edf
bundle-ng: move group into the bundler
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parents:
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diff
changeset
|
547 |
4cfdec944edf
bundle-ng: move group into the bundler
Sune Foldager <cryo@cyanite.org>
parents:
19199
diff
changeset
|
548 Given a list of changeset revs, return a set of deltas and |
4cfdec944edf
bundle-ng: move group into the bundler
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parents:
19199
diff
changeset
|
549 metadata corresponding to nodes. The first delta is |
4cfdec944edf
bundle-ng: move group into the bundler
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parents:
19199
diff
changeset
|
550 first parent(nodelist[0]) -> nodelist[0], the receiver is |
4cfdec944edf
bundle-ng: move group into the bundler
Sune Foldager <cryo@cyanite.org>
parents:
19199
diff
changeset
|
551 guaranteed to have this parent as it has all history before |
4cfdec944edf
bundle-ng: move group into the bundler
Sune Foldager <cryo@cyanite.org>
parents:
19199
diff
changeset
|
552 these changesets. In the case firstparent is nullrev the |
4cfdec944edf
bundle-ng: move group into the bundler
Sune Foldager <cryo@cyanite.org>
parents:
19199
diff
changeset
|
553 changegroup starts with a full revision. |
19208
0b564cf359a7
bundle-ng: move progress handling out of the linkrev callback
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parents:
19207
diff
changeset
|
554 |
0b564cf359a7
bundle-ng: move progress handling out of the linkrev callback
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parents:
19207
diff
changeset
|
555 If units is not None, progress detail will be generated, units specifies |
0b564cf359a7
bundle-ng: move progress handling out of the linkrev callback
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
19207
diff
changeset
|
556 the type of revlog that is touched (changelog, manifest, etc.). |
19200
4cfdec944edf
bundle-ng: move group into the bundler
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diff
changeset
|
557 """ |
4cfdec944edf
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parents:
19199
diff
changeset
|
558 # if we don't have any revisions touched by these changesets, bail |
4cfdec944edf
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parents:
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diff
changeset
|
559 if len(nodelist) == 0: |
4cfdec944edf
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diff
changeset
|
560 yield self.close() |
4cfdec944edf
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parents:
19199
diff
changeset
|
561 return |
4cfdec944edf
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parents:
19199
diff
changeset
|
562 |
29236
1b7d907ec18a
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Augie Fackler <augie@google.com>
parents:
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diff
changeset
|
563 revs = self._sortgroup(revlog, nodelist, lookup) |
19200
4cfdec944edf
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parents:
19199
diff
changeset
|
564 |
4cfdec944edf
bundle-ng: move group into the bundler
Sune Foldager <cryo@cyanite.org>
parents:
19199
diff
changeset
|
565 # add the parent of the first rev |
4cfdec944edf
bundle-ng: move group into the bundler
Sune Foldager <cryo@cyanite.org>
parents:
19199
diff
changeset
|
566 p = revlog.parentrevs(revs[0])[0] |
4cfdec944edf
bundle-ng: move group into the bundler
Sune Foldager <cryo@cyanite.org>
parents:
19199
diff
changeset
|
567 revs.insert(0, p) |
4cfdec944edf
bundle-ng: move group into the bundler
Sune Foldager <cryo@cyanite.org>
parents:
19199
diff
changeset
|
568 |
4cfdec944edf
bundle-ng: move group into the bundler
Sune Foldager <cryo@cyanite.org>
parents:
19199
diff
changeset
|
569 # build deltas |
19208
0b564cf359a7
bundle-ng: move progress handling out of the linkrev callback
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
19207
diff
changeset
|
570 total = len(revs) - 1 |
0b564cf359a7
bundle-ng: move progress handling out of the linkrev callback
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
19207
diff
changeset
|
571 msgbundling = _('bundling') |
19200
4cfdec944edf
bundle-ng: move group into the bundler
Sune Foldager <cryo@cyanite.org>
parents:
19199
diff
changeset
|
572 for r in xrange(len(revs) - 1): |
19208
0b564cf359a7
bundle-ng: move progress handling out of the linkrev callback
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
19207
diff
changeset
|
573 if units is not None: |
0b564cf359a7
bundle-ng: move progress handling out of the linkrev callback
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parents:
19207
diff
changeset
|
574 self._progress(msgbundling, r + 1, unit=units, total=total) |
19200
4cfdec944edf
bundle-ng: move group into the bundler
Sune Foldager <cryo@cyanite.org>
parents:
19199
diff
changeset
|
575 prev, curr = revs[r], revs[r + 1] |
19207
a67e1380dfbd
bundle-ng: simplify lookup and state handling
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
19206
diff
changeset
|
576 linknode = lookup(revlog.node(curr)) |
a67e1380dfbd
bundle-ng: simplify lookup and state handling
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
19206
diff
changeset
|
577 for c in self.revchunk(revlog, curr, prev, linknode): |
19200
4cfdec944edf
bundle-ng: move group into the bundler
Sune Foldager <cryo@cyanite.org>
parents:
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diff
changeset
|
578 yield c |
4cfdec944edf
bundle-ng: move group into the bundler
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parents:
19199
diff
changeset
|
579 |
24901
e9edd53770fb
changegroup: close progress in same function as it's started
Martin von Zweigbergk <martinvonz@google.com>
parents:
24900
diff
changeset
|
580 if units is not None: |
e9edd53770fb
changegroup: close progress in same function as it's started
Martin von Zweigbergk <martinvonz@google.com>
parents:
24900
diff
changeset
|
581 self._progress(msgbundling, None) |
19200
4cfdec944edf
bundle-ng: move group into the bundler
Sune Foldager <cryo@cyanite.org>
parents:
19199
diff
changeset
|
582 yield self.close() |
4cfdec944edf
bundle-ng: move group into the bundler
Sune Foldager <cryo@cyanite.org>
parents:
19199
diff
changeset
|
583 |
19289
6ea1f858efd9
bundle: refactor changegroup prune to be its own function
Durham Goode <durham@fb.com>
parents:
19208
diff
changeset
|
584 # filter any nodes that claim to be part of the known set |
24896
9183cb6886ef
changegroup: removed unused 'source' parameter from prune()
Martin von Zweigbergk <martinvonz@google.com>
parents:
24717
diff
changeset
|
585 def prune(self, revlog, missing, commonrevs): |
19289
6ea1f858efd9
bundle: refactor changegroup prune to be its own function
Durham Goode <durham@fb.com>
parents:
19208
diff
changeset
|
586 rr, rl = revlog.rev, revlog.linkrev |
6ea1f858efd9
bundle: refactor changegroup prune to be its own function
Durham Goode <durham@fb.com>
parents:
19208
diff
changeset
|
587 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
|
588 |
28228
abf120262683
changegroup: make _packmanifests() dumber
Martin von Zweigbergk <martinvonz@google.com>
parents:
28227
diff
changeset
|
589 def _packmanifests(self, dir, mfnodes, lookuplinknode): |
26711
0ef0aec56090
changegroup: move manifest packing into a separate function
Augie Fackler <augie@google.com>
parents:
26710
diff
changeset
|
590 """Pack flat manifests into a changegroup stream.""" |
28228
abf120262683
changegroup: make _packmanifests() dumber
Martin von Zweigbergk <martinvonz@google.com>
parents:
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diff
changeset
|
591 assert not dir |
abf120262683
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Martin von Zweigbergk <martinvonz@google.com>
parents:
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diff
changeset
|
592 for chunk in self.group(mfnodes, self._repo.manifest, |
abf120262683
changegroup: make _packmanifests() dumber
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parents:
28227
diff
changeset
|
593 lookuplinknode, units=_('manifests')): |
26711
0ef0aec56090
changegroup: move manifest packing into a separate function
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parents:
26710
diff
changeset
|
594 yield chunk |
28228
abf120262683
changegroup: make _packmanifests() dumber
Martin von Zweigbergk <martinvonz@google.com>
parents:
28227
diff
changeset
|
595 |
abf120262683
changegroup: make _packmanifests() dumber
Martin von Zweigbergk <martinvonz@google.com>
parents:
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diff
changeset
|
596 def _manifestsdone(self): |
abf120262683
changegroup: make _packmanifests() dumber
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parents:
28227
diff
changeset
|
597 return '' |
26711
0ef0aec56090
changegroup: move manifest packing into a separate function
Augie Fackler <augie@google.com>
parents:
26710
diff
changeset
|
598 |
19204
e9c5b1c246dc
bundle-ng: move bundle generation to changegroup.py
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
19202
diff
changeset
|
599 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
|
600 '''yield a sequence of changegroup chunks (strings)''' |
0455fc94ae00
bundle-ng: move gengroup into bundler, pass repo object to bundler
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parents:
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diff
changeset
|
601 repo = self._repo |
24978
f52560c64953
changegroup: drop _changelog and _manifest properties
Martin von Zweigbergk <martinvonz@google.com>
parents:
24977
diff
changeset
|
602 cl = repo.changelog |
19204
e9c5b1c246dc
bundle-ng: move bundle generation to changegroup.py
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
19202
diff
changeset
|
603 |
23381
cc0ff93d0c0c
changegroup: fix file linkrevs during reorders (issue4462)
Durham Goode <durham@fb.com>
parents:
23226
diff
changeset
|
604 clrevorder = {} |
19204
e9c5b1c246dc
bundle-ng: move bundle generation to changegroup.py
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
19202
diff
changeset
|
605 mfs = {} # needed manifests |
e9c5b1c246dc
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parents:
19202
diff
changeset
|
606 fnodes = {} # needed file nodes |
28241
a4286175ecba
changegroup: drop special-casing of flat manifests
Martin von Zweigbergk <martinvonz@google.com>
parents:
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diff
changeset
|
607 changedfiles = set() |
19204
e9c5b1c246dc
bundle-ng: move bundle generation to changegroup.py
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
19202
diff
changeset
|
608 |
19207
a67e1380dfbd
bundle-ng: simplify lookup and state handling
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
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diff
changeset
|
609 # Callback for the changelog, used to collect changed files and manifest |
a67e1380dfbd
bundle-ng: simplify lookup and state handling
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parents:
19206
diff
changeset
|
610 # nodes. |
a67e1380dfbd
bundle-ng: simplify lookup and state handling
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diff
changeset
|
611 # Returns the linkrev node (identity in the changelog case). |
a67e1380dfbd
bundle-ng: simplify lookup and state handling
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diff
changeset
|
612 def lookupcl(x): |
a67e1380dfbd
bundle-ng: simplify lookup and state handling
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parents:
19206
diff
changeset
|
613 c = cl.read(x) |
23381
cc0ff93d0c0c
changegroup: fix file linkrevs during reorders (issue4462)
Durham Goode <durham@fb.com>
parents:
23226
diff
changeset
|
614 clrevorder[x] = len(clrevorder) |
27237
c08814b48ae5
changegroup: avoid iterating the whole manifest
Augie Fackler <augie@google.com>
parents:
27219
diff
changeset
|
615 n = c[0] |
19207
a67e1380dfbd
bundle-ng: simplify lookup and state handling
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parents:
19206
diff
changeset
|
616 # record the first changeset introducing this manifest version |
27237
c08814b48ae5
changegroup: avoid iterating the whole manifest
Augie Fackler <augie@google.com>
parents:
27219
diff
changeset
|
617 mfs.setdefault(n, x) |
c08814b48ae5
changegroup: avoid iterating the whole manifest
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parents:
27219
diff
changeset
|
618 # Record a complete list of potentially-changed files in |
c08814b48ae5
changegroup: avoid iterating the whole manifest
Augie Fackler <augie@google.com>
parents:
27219
diff
changeset
|
619 # this manifest. |
28241
a4286175ecba
changegroup: drop special-casing of flat manifests
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parents:
28240
diff
changeset
|
620 changedfiles.update(c[3]) |
19207
a67e1380dfbd
bundle-ng: simplify lookup and state handling
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parents:
19206
diff
changeset
|
621 return x |
19204
e9c5b1c246dc
bundle-ng: move bundle generation to changegroup.py
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parents:
19202
diff
changeset
|
622 |
23748
4ab66de46a96
bundle: when verbose, show what takes up the space in the generated bundle
Mads Kiilerich <madski@unity3d.com>
parents:
23382
diff
changeset
|
623 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:
23382
diff
changeset
|
624 size = 0 |
24912
e285b98c65cc
changegroup.group: drop 'reorder' parameter
Martin von Zweigbergk <martinvonz@google.com>
parents:
24911
diff
changeset
|
625 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
|
626 size += len(chunk) |
23224
f4ab47ccefde
changegroup: don't define lookupmf() until it is needed
Gregory Szorc <gregory.szorc@gmail.com>
parents:
22971
diff
changeset
|
627 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
|
628 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
|
629 |
24977
4289383cb9d2
changegroup: document the cases where reordering complicates linkrevs
Martin von Zweigbergk <martinvonz@google.com>
parents:
24976
diff
changeset
|
630 # 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
|
631 # 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
|
632 # 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
|
633 # are walked in revlog order. |
4289383cb9d2
changegroup: document the cases where reordering complicates linkrevs
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parents:
24976
diff
changeset
|
634 # |
4289383cb9d2
changegroup: document the cases where reordering complicates linkrevs
Martin von Zweigbergk <martinvonz@google.com>
parents:
24976
diff
changeset
|
635 # When taking the slowpath with reorder=None and the manifest revlog |
4289383cb9d2
changegroup: document the cases where reordering complicates linkrevs
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parents:
24976
diff
changeset
|
636 # 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
|
637 # 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
|
638 # cc0ff93d0c0c). |
4289383cb9d2
changegroup: document the cases where reordering complicates linkrevs
Martin von Zweigbergk <martinvonz@google.com>
parents:
24976
diff
changeset
|
639 # |
4289383cb9d2
changegroup: document the cases where reordering complicates linkrevs
Martin von Zweigbergk <martinvonz@google.com>
parents:
24976
diff
changeset
|
640 # 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
|
641 # of the changelog itself. The changelog never uses generaldelta, so |
4289383cb9d2
changegroup: document the cases where reordering complicates linkrevs
Martin von Zweigbergk <martinvonz@google.com>
parents:
24976
diff
changeset
|
642 # it is only reordered when reorder=True. To handle this case, we |
4289383cb9d2
changegroup: document the cases where reordering complicates linkrevs
Martin von Zweigbergk <martinvonz@google.com>
parents:
24976
diff
changeset
|
643 # simply take the slowpath, which already has the 'clrevorder' logic. |
4289383cb9d2
changegroup: document the cases where reordering complicates linkrevs
Martin von Zweigbergk <martinvonz@google.com>
parents:
24976
diff
changeset
|
644 # This was also fixed in cc0ff93d0c0c. |
24976
147d8892fc4b
changegroup: extract condition for linkrev fastpath
Martin von Zweigbergk <martinvonz@google.com>
parents:
24912
diff
changeset
|
645 fastpathlinkrev = fastpathlinkrev and not self._reorder |
27432
77d25b913f80
changegroup: introduce cg3, which has support for exchanging treemanifests
Augie Fackler <augie@google.com>
parents:
27241
diff
changeset
|
646 # Treemanifests don't work correctly with fastpathlinkrev |
77d25b913f80
changegroup: introduce cg3, which has support for exchanging treemanifests
Augie Fackler <augie@google.com>
parents:
27241
diff
changeset
|
647 # either, because we don't discover which directory nodes to |
77d25b913f80
changegroup: introduce cg3, which has support for exchanging treemanifests
Augie Fackler <augie@google.com>
parents:
27241
diff
changeset
|
648 # send along with files. This could probably be fixed. |
77d25b913f80
changegroup: introduce cg3, which has support for exchanging treemanifests
Augie Fackler <augie@google.com>
parents:
27241
diff
changeset
|
649 fastpathlinkrev = fastpathlinkrev and ( |
77d25b913f80
changegroup: introduce cg3, which has support for exchanging treemanifests
Augie Fackler <augie@google.com>
parents:
27241
diff
changeset
|
650 'treemanifest' not in repo.requirements) |
28227
1c36cc8e7870
changegroup: extract generatemanifests()
Martin von Zweigbergk <martinvonz@google.com>
parents:
27953
diff
changeset
|
651 |
1c36cc8e7870
changegroup: extract generatemanifests()
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parents:
27953
diff
changeset
|
652 for chunk in self.generatemanifests(commonrevs, clrevorder, |
28241
a4286175ecba
changegroup: drop special-casing of flat manifests
Martin von Zweigbergk <martinvonz@google.com>
parents:
28240
diff
changeset
|
653 fastpathlinkrev, mfs, fnodes): |
28227
1c36cc8e7870
changegroup: extract generatemanifests()
Martin von Zweigbergk <martinvonz@google.com>
parents:
27953
diff
changeset
|
654 yield chunk |
1c36cc8e7870
changegroup: extract generatemanifests()
Martin von Zweigbergk <martinvonz@google.com>
parents:
27953
diff
changeset
|
655 mfs.clear() |
1c36cc8e7870
changegroup: extract generatemanifests()
Martin von Zweigbergk <martinvonz@google.com>
parents:
27953
diff
changeset
|
656 clrevs = set(cl.rev(x) for x in clnodes) |
1c36cc8e7870
changegroup: extract generatemanifests()
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parents:
27953
diff
changeset
|
657 |
1c36cc8e7870
changegroup: extract generatemanifests()
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parents:
27953
diff
changeset
|
658 if not fastpathlinkrev: |
1c36cc8e7870
changegroup: extract generatemanifests()
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parents:
27953
diff
changeset
|
659 def linknodes(unused, fname): |
1c36cc8e7870
changegroup: extract generatemanifests()
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parents:
27953
diff
changeset
|
660 return fnodes.get(fname, {}) |
1c36cc8e7870
changegroup: extract generatemanifests()
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parents:
27953
diff
changeset
|
661 else: |
1c36cc8e7870
changegroup: extract generatemanifests()
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parents:
27953
diff
changeset
|
662 cln = cl.node |
1c36cc8e7870
changegroup: extract generatemanifests()
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parents:
27953
diff
changeset
|
663 def linknodes(filerevlog, fname): |
1c36cc8e7870
changegroup: extract generatemanifests()
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parents:
27953
diff
changeset
|
664 llr = filerevlog.linkrev |
1c36cc8e7870
changegroup: extract generatemanifests()
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parents:
27953
diff
changeset
|
665 fln = filerevlog.node |
1c36cc8e7870
changegroup: extract generatemanifests()
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parents:
27953
diff
changeset
|
666 revs = ((r, llr(r)) for r in filerevlog) |
1c36cc8e7870
changegroup: extract generatemanifests()
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parents:
27953
diff
changeset
|
667 return dict((fln(r), cln(lr)) for r, lr in revs if lr in clrevs) |
1c36cc8e7870
changegroup: extract generatemanifests()
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parents:
27953
diff
changeset
|
668 |
1c36cc8e7870
changegroup: extract generatemanifests()
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parents:
27953
diff
changeset
|
669 for chunk in self.generatefiles(changedfiles, linknodes, commonrevs, |
1c36cc8e7870
changegroup: extract generatemanifests()
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parents:
27953
diff
changeset
|
670 source): |
1c36cc8e7870
changegroup: extract generatemanifests()
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parents:
27953
diff
changeset
|
671 yield chunk |
1c36cc8e7870
changegroup: extract generatemanifests()
Martin von Zweigbergk <martinvonz@google.com>
parents:
27953
diff
changeset
|
672 |
1c36cc8e7870
changegroup: extract generatemanifests()
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parents:
27953
diff
changeset
|
673 yield self.close() |
1c36cc8e7870
changegroup: extract generatemanifests()
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parents:
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674 |
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675 if clnodes: |
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676 repo.hook('outgoing', node=hex(clnodes[0]), source=source) |
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677 |
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678 def generatemanifests(self, commonrevs, clrevorder, fastpathlinkrev, mfs, |
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679 fnodes): |
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680 repo = self._repo |
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681 dirlog = repo.manifest.dirlog |
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682 tmfnodes = {'': mfs} |
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683 |
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684 # Callback for the manifest, used to collect linkrevs for filelog |
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685 # revisions. |
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686 # Returns the linkrev node (collected in lookupcl). |
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687 def makelookupmflinknode(dir): |
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|
688 if fastpathlinkrev: |
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689 assert not dir |
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|
690 return mfs.__getitem__ |
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|
691 |
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|
692 def lookupmflinknode(x): |
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693 """Callback for looking up the linknode for manifests. |
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|
694 |
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695 Returns the linkrev node for the specified manifest. |
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|
696 |
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|
697 SIDE EFFECT: |
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|
698 |
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|
699 1) fclnodes gets populated with the list of relevant |
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|
700 file nodes if we're not using fastpathlinkrev |
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|
701 2) When treemanifests are in use, collects treemanifest nodes |
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|
702 to send |
27219
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|
703 |
27432
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|
704 Note that this means manifests must be completely sent to |
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Augie Fackler <augie@google.com>
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|
705 the client before you can trust the list of files and |
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diff
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|
706 treemanifests to send. |
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|
707 """ |
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|
708 clnode = tmfnodes[dir][x] |
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|
709 mdata = dirlog(dir).readshallowfast(x) |
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|
710 for p, n, fl in mdata.iterentries(): |
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|
711 if fl == 't': # subdirectory manifest |
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|
712 subdir = dir + p + '/' |
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|
713 tmfclnodes = tmfnodes.setdefault(subdir, {}) |
a4286175ecba
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|
714 tmfclnode = tmfclnodes.setdefault(n, clnode) |
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changegroup: drop special-casing of flat manifests
Martin von Zweigbergk <martinvonz@google.com>
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|
715 if clrevorder[clnode] < clrevorder[tmfclnode]: |
a4286175ecba
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|
716 tmfclnodes[n] = clnode |
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|
717 else: |
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|
718 f = dir + p |
28240
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changegroup: fix treemanifests on merges
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diff
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|
719 fclnodes = fnodes.setdefault(f, {}) |
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|
720 fclnode = fclnodes.setdefault(n, clnode) |
1ac8ce137377
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|
721 if clrevorder[clnode] < clrevorder[fclnode]: |
1ac8ce137377
changegroup: fix treemanifests on merges
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|
722 fclnodes[n] = clnode |
27239
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Augie Fackler <augie@google.com>
parents:
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diff
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|
723 return clnode |
28231
3faba927dd93
changegroup: introduce makelookupmflinknode(dir)
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parents:
28230
diff
changeset
|
724 return lookupmflinknode |
19206
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bundle-ng: simplify bundle10.generate
Sune Foldager <cryo@cyanite.org>
parents:
19204
diff
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|
725 |
28228
abf120262683
changegroup: make _packmanifests() dumber
Martin von Zweigbergk <martinvonz@google.com>
parents:
28227
diff
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|
726 size = 0 |
28232
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changegroup: write root manifests and subdir manifests in a single loop
Martin von Zweigbergk <martinvonz@google.com>
parents:
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diff
changeset
|
727 while tmfnodes: |
829d369fc5a8
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diff
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|
728 dir = min(tmfnodes) |
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diff
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|
729 nodes = tmfnodes[dir] |
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parents:
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diff
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|
730 prunednodes = self.prune(dirlog(dir), nodes, commonrevs) |
29371
1b699c7eb2b7
changegroup: don't send empty subdirectory manifest groups
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parents:
29236
diff
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|
731 if not dir or prunednodes: |
1b699c7eb2b7
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parents:
29236
diff
changeset
|
732 for x in self._packmanifests(dir, prunednodes, |
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|
733 makelookupmflinknode(dir)): |
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changegroup: don't send empty subdirectory manifest groups
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diff
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|
734 size += len(x) |
1b699c7eb2b7
changegroup: don't send empty subdirectory manifest groups
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parents:
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diff
changeset
|
735 yield x |
28232
829d369fc5a8
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diff
changeset
|
736 del tmfnodes[dir] |
28229
8e13b2379407
changegroup: include subdirectory manifests in verbose size
Martin von Zweigbergk <martinvonz@google.com>
parents:
28228
diff
changeset
|
737 self._verbosenote(_('%8.i (manifests)\n') % size) |
28228
abf120262683
changegroup: make _packmanifests() dumber
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parents:
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diff
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|
738 yield self._manifestsdone() |
19206
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bundle-ng: simplify bundle10.generate
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parents:
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changeset
|
739 |
24897
5c35a6040352
changegroup: document that 'source' parameter exists for extensions
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parents:
24896
diff
changeset
|
740 # 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
|
741 def generatefiles(self, changedfiles, linknodes, commonrevs, source): |
95a49112e7ab
bundle: move file chunk generation to it's own function
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parents:
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diff
changeset
|
742 repo = self._repo |
95a49112e7ab
bundle: move file chunk generation to it's own function
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parents:
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diff
changeset
|
743 progress = self._progress |
95a49112e7ab
bundle: move file chunk generation to it's own function
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parents:
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diff
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|
744 msgbundling = _('bundling') |
95a49112e7ab
bundle: move file chunk generation to it's own function
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parents:
19325
diff
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|
745 |
95a49112e7ab
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parents:
19325
diff
changeset
|
746 total = len(changedfiles) |
95a49112e7ab
bundle: move file chunk generation to it's own function
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parents:
19325
diff
changeset
|
747 # for progress output |
95a49112e7ab
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parents:
19325
diff
changeset
|
748 msgfiles = _('files') |
95a49112e7ab
bundle: move file chunk generation to it's own function
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parents:
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diff
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|
749 for i, fname in enumerate(sorted(changedfiles)): |
95a49112e7ab
bundle: move file chunk generation to it's own function
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parents:
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diff
changeset
|
750 filerevlog = repo.file(fname) |
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bundle: move file chunk generation to it's own function
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parents:
19325
diff
changeset
|
751 if not filerevlog: |
26587
56b2bcea2529
error: get Abort from 'error' instead of 'util'
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
26540
diff
changeset
|
752 raise error.Abort(_("empty or missing revlog for %s") % fname) |
19334
95a49112e7ab
bundle: move file chunk generation to it's own function
Durham Goode <durham@fb.com>
parents:
19325
diff
changeset
|
753 |
95a49112e7ab
bundle: move file chunk generation to it's own function
Durham Goode <durham@fb.com>
parents:
19325
diff
changeset
|
754 linkrevnodes = linknodes(filerevlog, fname) |
19207
a67e1380dfbd
bundle-ng: simplify lookup and state handling
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parents:
19206
diff
changeset
|
755 # Lookup for filenodes, we collected the linkrev nodes above in the |
a67e1380dfbd
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parents:
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diff
changeset
|
756 # fastpath case and with lookupmf in the slowpath case. |
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bundle-ng: simplify lookup and state handling
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changeset
|
757 def lookupfilelog(x): |
a67e1380dfbd
bundle-ng: simplify lookup and state handling
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diff
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|
758 return linkrevnodes[x] |
a67e1380dfbd
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parents:
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diff
changeset
|
759 |
24896
9183cb6886ef
changegroup: removed unused 'source' parameter from prune()
Martin von Zweigbergk <martinvonz@google.com>
parents:
24717
diff
changeset
|
760 filenodes = self.prune(filerevlog, linkrevnodes, commonrevs) |
19206
6308896b1d4a
bundle-ng: simplify bundle10.generate
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parents:
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diff
changeset
|
761 if filenodes: |
19208
0b564cf359a7
bundle-ng: move progress handling out of the linkrev callback
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
19207
diff
changeset
|
762 progress(msgbundling, i + 1, item=fname, unit=msgfiles, |
0b564cf359a7
bundle-ng: move progress handling out of the linkrev callback
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parents:
19207
diff
changeset
|
763 total=total) |
23748
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
|
764 h = self.fileheader(fname) |
4ab66de46a96
bundle: when verbose, show what takes up the space in the generated bundle
Mads Kiilerich <madski@unity3d.com>
parents:
23382
diff
changeset
|
765 size = len(h) |
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Mads Kiilerich <madski@unity3d.com>
parents:
23382
diff
changeset
|
766 yield h |
24912
e285b98c65cc
changegroup.group: drop 'reorder' parameter
Martin von Zweigbergk <martinvonz@google.com>
parents:
24911
diff
changeset
|
767 for chunk in self.group(filenodes, filerevlog, lookupfilelog): |
23748
4ab66de46a96
bundle: when verbose, show what takes up the space in the generated bundle
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parents:
23382
diff
changeset
|
768 size += len(chunk) |
19202
0455fc94ae00
bundle-ng: move gengroup into bundler, pass repo object to bundler
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parents:
19201
diff
changeset
|
769 yield chunk |
23748
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bundle: when verbose, show what takes up the space in the generated bundle
Mads Kiilerich <madski@unity3d.com>
parents:
23382
diff
changeset
|
770 self._verbosenote(_('%8.i %s\n') % (size, fname)) |
24901
e9edd53770fb
changegroup: close progress in same function as it's started
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parents:
24900
diff
changeset
|
771 progress(msgbundling, None) |
19200
4cfdec944edf
bundle-ng: move group into the bundler
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parents:
19199
diff
changeset
|
772 |
23181
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changegroup: introduce cg2packer/unpacker
Sune Foldager <cryo@cyanite.org>
parents:
23178
diff
changeset
|
773 def deltaparent(self, revlog, rev, p1, p2, prev): |
832b7ef275c8
changegroup: introduce cg2packer/unpacker
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|
774 return prev |
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Sune Foldager <cryo@cyanite.org>
parents:
23178
diff
changeset
|
775 |
19207
a67e1380dfbd
bundle-ng: simplify lookup and state handling
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parents:
19206
diff
changeset
|
776 def revchunk(self, revlog, rev, prev, linknode): |
14143
da635d3c5620
changegroup: new bundler API
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parents:
14141
diff
changeset
|
777 node = revlog.node(rev) |
da635d3c5620
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14141
diff
changeset
|
778 p1, p2 = revlog.parentrevs(rev) |
23181
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diff
changeset
|
779 base = self.deltaparent(revlog, rev, p1, p2, prev) |
14143
da635d3c5620
changegroup: new bundler API
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
14141
diff
changeset
|
780 |
da635d3c5620
changegroup: new bundler API
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parents:
14141
diff
changeset
|
781 prefix = '' |
24190
903c7e8c97ad
changegroup: emit full-replacement deltas if either revision is censored
Mike Edgar <adgar@google.com>
parents:
24180
diff
changeset
|
782 if revlog.iscensored(base) or revlog.iscensored(rev): |
903c7e8c97ad
changegroup: emit full-replacement deltas if either revision is censored
Mike Edgar <adgar@google.com>
parents:
24180
diff
changeset
|
783 try: |
903c7e8c97ad
changegroup: emit full-replacement deltas if either revision is censored
Mike Edgar <adgar@google.com>
parents:
24180
diff
changeset
|
784 delta = revlog.revision(node) |
25660
328739ea70c3
global: mass rewrite to use modern exception syntax
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25624
diff
changeset
|
785 except error.CensoredNodeError as e: |
24190
903c7e8c97ad
changegroup: emit full-replacement deltas if either revision is censored
Mike Edgar <adgar@google.com>
parents:
24180
diff
changeset
|
786 delta = e.tombstone |
903c7e8c97ad
changegroup: emit full-replacement deltas if either revision is censored
Mike Edgar <adgar@google.com>
parents:
24180
diff
changeset
|
787 if base == nullrev: |
903c7e8c97ad
changegroup: emit full-replacement deltas if either revision is censored
Mike Edgar <adgar@google.com>
parents:
24180
diff
changeset
|
788 prefix = mdiff.trivialdiffheader(len(delta)) |
903c7e8c97ad
changegroup: emit full-replacement deltas if either revision is censored
Mike Edgar <adgar@google.com>
parents:
24180
diff
changeset
|
789 else: |
903c7e8c97ad
changegroup: emit full-replacement deltas if either revision is censored
Mike Edgar <adgar@google.com>
parents:
24180
diff
changeset
|
790 baselen = revlog.rawsize(base) |
903c7e8c97ad
changegroup: emit full-replacement deltas if either revision is censored
Mike Edgar <adgar@google.com>
parents:
24180
diff
changeset
|
791 prefix = mdiff.replacediffheader(baselen, len(delta)) |
903c7e8c97ad
changegroup: emit full-replacement deltas if either revision is censored
Mike Edgar <adgar@google.com>
parents:
24180
diff
changeset
|
792 elif base == nullrev: |
14143
da635d3c5620
changegroup: new bundler API
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
14141
diff
changeset
|
793 delta = revlog.revision(node) |
da635d3c5620
changegroup: new bundler API
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
14141
diff
changeset
|
794 prefix = mdiff.trivialdiffheader(len(delta)) |
da635d3c5620
changegroup: new bundler API
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
14141
diff
changeset
|
795 else: |
da635d3c5620
changegroup: new bundler API
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
14141
diff
changeset
|
796 delta = revlog.revdiff(base, rev) |
da635d3c5620
changegroup: new bundler API
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
14141
diff
changeset
|
797 p1n, p2n = revlog.parents(node) |
da635d3c5620
changegroup: new bundler API
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
14141
diff
changeset
|
798 basenode = revlog.node(base) |
27433
12f727a5b434
changegroup: add flags field to cg3 delta header
Mike Edgar <adgar@google.com>
parents:
27432
diff
changeset
|
799 flags = revlog.flags(rev) |
12f727a5b434
changegroup: add flags field to cg3 delta header
Mike Edgar <adgar@google.com>
parents:
27432
diff
changeset
|
800 meta = self.builddeltaheader(node, p1n, p2n, basenode, linknode, flags) |
14143
da635d3c5620
changegroup: new bundler API
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
14141
diff
changeset
|
801 meta += prefix |
da635d3c5620
changegroup: new bundler API
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
14141
diff
changeset
|
802 l = len(meta) + len(delta) |
13831
d69c9510d648
changegroup: introduce bundler objects
Matt Mackall <mpm@selenic.com>
parents:
13786
diff
changeset
|
803 yield chunkheader(l) |
d69c9510d648
changegroup: introduce bundler objects
Matt Mackall <mpm@selenic.com>
parents:
13786
diff
changeset
|
804 yield meta |
14143
da635d3c5620
changegroup: new bundler API
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
14141
diff
changeset
|
805 yield delta |
27433
12f727a5b434
changegroup: add flags field to cg3 delta header
Mike Edgar <adgar@google.com>
parents:
27432
diff
changeset
|
806 def builddeltaheader(self, node, p1n, p2n, basenode, linknode, flags): |
14143
da635d3c5620
changegroup: new bundler API
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
14141
diff
changeset
|
807 # do nothing with basenode, it is implicitly the previous one in HG10 |
27433
12f727a5b434
changegroup: add flags field to cg3 delta header
Mike Edgar <adgar@google.com>
parents:
27432
diff
changeset
|
808 # do nothing with flags, it is implicitly 0 for cg1 and cg2 |
14143
da635d3c5620
changegroup: new bundler API
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
14141
diff
changeset
|
809 return struct.pack(self.deltaheader, node, p1n, p2n, linknode) |
20925
5174c48ed8d8
localrepo: move the _changegroupsubset method in changegroup module
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20675
diff
changeset
|
810 |
23181
832b7ef275c8
changegroup: introduce cg2packer/unpacker
Sune Foldager <cryo@cyanite.org>
parents:
23178
diff
changeset
|
811 class cg2packer(cg1packer): |
23896
becfecaf9087
changegroup.writebundle: HG2Y support
Eric Sumner <ericsumner@fb.com>
parents:
23895
diff
changeset
|
812 version = '02' |
23181
832b7ef275c8
changegroup: introduce cg2packer/unpacker
Sune Foldager <cryo@cyanite.org>
parents:
23178
diff
changeset
|
813 deltaheader = _CHANGEGROUPV2_DELTA_HEADER |
832b7ef275c8
changegroup: introduce cg2packer/unpacker
Sune Foldager <cryo@cyanite.org>
parents:
23178
diff
changeset
|
814 |
24911
5447b8523fef
cg2packer: set reorder=False in __init__ instead of in group()
Martin von Zweigbergk <martinvonz@google.com>
parents:
24910
diff
changeset
|
815 def __init__(self, repo, bundlecaps=None): |
5447b8523fef
cg2packer: set reorder=False in __init__ instead of in group()
Martin von Zweigbergk <martinvonz@google.com>
parents:
24910
diff
changeset
|
816 super(cg2packer, self).__init__(repo, bundlecaps) |
5447b8523fef
cg2packer: set reorder=False in __init__ instead of in group()
Martin von Zweigbergk <martinvonz@google.com>
parents:
24910
diff
changeset
|
817 if self._reorder is None: |
5447b8523fef
cg2packer: set reorder=False in __init__ instead of in group()
Martin von Zweigbergk <martinvonz@google.com>
parents:
24910
diff
changeset
|
818 # Since generaldelta is directly supported by cg2, reordering |
5447b8523fef
cg2packer: set reorder=False in __init__ instead of in group()
Martin von Zweigbergk <martinvonz@google.com>
parents:
24910
diff
changeset
|
819 # generally doesn't help, so we disable it by default (treating |
5447b8523fef
cg2packer: set reorder=False in __init__ instead of in group()
Martin von Zweigbergk <martinvonz@google.com>
parents:
24910
diff
changeset
|
820 # bundle.reorder=auto just like bundle.reorder=False). |
5447b8523fef
cg2packer: set reorder=False in __init__ instead of in group()
Martin von Zweigbergk <martinvonz@google.com>
parents:
24910
diff
changeset
|
821 self._reorder = False |
23181
832b7ef275c8
changegroup: introduce cg2packer/unpacker
Sune Foldager <cryo@cyanite.org>
parents:
23178
diff
changeset
|
822 |
832b7ef275c8
changegroup: introduce cg2packer/unpacker
Sune Foldager <cryo@cyanite.org>
parents:
23178
diff
changeset
|
823 def deltaparent(self, revlog, rev, p1, p2, prev): |
832b7ef275c8
changegroup: introduce cg2packer/unpacker
Sune Foldager <cryo@cyanite.org>
parents:
23178
diff
changeset
|
824 dp = revlog.deltaparent(rev) |
832b7ef275c8
changegroup: introduce cg2packer/unpacker
Sune Foldager <cryo@cyanite.org>
parents:
23178
diff
changeset
|
825 # avoid storing full revisions; pick prev in those cases |
832b7ef275c8
changegroup: introduce cg2packer/unpacker
Sune Foldager <cryo@cyanite.org>
parents:
23178
diff
changeset
|
826 # also pick prev when we can't be sure remote has dp |
832b7ef275c8
changegroup: introduce cg2packer/unpacker
Sune Foldager <cryo@cyanite.org>
parents:
23178
diff
changeset
|
827 if dp == nullrev or (dp != p1 and dp != p2 and dp != prev): |
832b7ef275c8
changegroup: introduce cg2packer/unpacker
Sune Foldager <cryo@cyanite.org>
parents:
23178
diff
changeset
|
828 return prev |
832b7ef275c8
changegroup: introduce cg2packer/unpacker
Sune Foldager <cryo@cyanite.org>
parents:
23178
diff
changeset
|
829 return dp |
832b7ef275c8
changegroup: introduce cg2packer/unpacker
Sune Foldager <cryo@cyanite.org>
parents:
23178
diff
changeset
|
830 |
27433
12f727a5b434
changegroup: add flags field to cg3 delta header
Mike Edgar <adgar@google.com>
parents:
27432
diff
changeset
|
831 def builddeltaheader(self, node, p1n, p2n, basenode, linknode, flags): |
12f727a5b434
changegroup: add flags field to cg3 delta header
Mike Edgar <adgar@google.com>
parents:
27432
diff
changeset
|
832 # Do nothing with flags, it is implicitly 0 in cg1 and cg2 |
23181
832b7ef275c8
changegroup: introduce cg2packer/unpacker
Sune Foldager <cryo@cyanite.org>
parents:
23178
diff
changeset
|
833 return struct.pack(self.deltaheader, node, p1n, p2n, basenode, linknode) |
832b7ef275c8
changegroup: introduce cg2packer/unpacker
Sune Foldager <cryo@cyanite.org>
parents:
23178
diff
changeset
|
834 |
27432
77d25b913f80
changegroup: introduce cg3, which has support for exchanging treemanifests
Augie Fackler <augie@google.com>
parents:
27241
diff
changeset
|
835 class cg3packer(cg2packer): |
77d25b913f80
changegroup: introduce cg3, which has support for exchanging treemanifests
Augie Fackler <augie@google.com>
parents:
27241
diff
changeset
|
836 version = '03' |
27433
12f727a5b434
changegroup: add flags field to cg3 delta header
Mike Edgar <adgar@google.com>
parents:
27432
diff
changeset
|
837 deltaheader = _CHANGEGROUPV3_DELTA_HEADER |
27432
77d25b913f80
changegroup: introduce cg3, which has support for exchanging treemanifests
Augie Fackler <augie@google.com>
parents:
27241
diff
changeset
|
838 |
28228
abf120262683
changegroup: make _packmanifests() dumber
Martin von Zweigbergk <martinvonz@google.com>
parents:
28227
diff
changeset
|
839 def _packmanifests(self, dir, mfnodes, lookuplinknode): |
abf120262683
changegroup: make _packmanifests() dumber
Martin von Zweigbergk <martinvonz@google.com>
parents:
28227
diff
changeset
|
840 if dir: |
abf120262683
changegroup: make _packmanifests() dumber
Martin von Zweigbergk <martinvonz@google.com>
parents:
28227
diff
changeset
|
841 yield self.fileheader(dir) |
abf120262683
changegroup: make _packmanifests() dumber
Martin von Zweigbergk <martinvonz@google.com>
parents:
28227
diff
changeset
|
842 for chunk in self.group(mfnodes, self._repo.manifest.dirlog(dir), |
abf120262683
changegroup: make _packmanifests() dumber
Martin von Zweigbergk <martinvonz@google.com>
parents:
28227
diff
changeset
|
843 lookuplinknode, units=_('manifests')): |
abf120262683
changegroup: make _packmanifests() dumber
Martin von Zweigbergk <martinvonz@google.com>
parents:
28227
diff
changeset
|
844 yield chunk |
abf120262683
changegroup: make _packmanifests() dumber
Martin von Zweigbergk <martinvonz@google.com>
parents:
28227
diff
changeset
|
845 |
abf120262683
changegroup: make _packmanifests() dumber
Martin von Zweigbergk <martinvonz@google.com>
parents:
28227
diff
changeset
|
846 def _manifestsdone(self): |
abf120262683
changegroup: make _packmanifests() dumber
Martin von Zweigbergk <martinvonz@google.com>
parents:
28227
diff
changeset
|
847 return self.close() |
27432
77d25b913f80
changegroup: introduce cg3, which has support for exchanging treemanifests
Augie Fackler <augie@google.com>
parents:
27241
diff
changeset
|
848 |
27433
12f727a5b434
changegroup: add flags field to cg3 delta header
Mike Edgar <adgar@google.com>
parents:
27432
diff
changeset
|
849 def builddeltaheader(self, node, p1n, p2n, basenode, linknode, flags): |
12f727a5b434
changegroup: add flags field to cg3 delta header
Mike Edgar <adgar@google.com>
parents:
27432
diff
changeset
|
850 return struct.pack( |
12f727a5b434
changegroup: add flags field to cg3 delta header
Mike Edgar <adgar@google.com>
parents:
27432
diff
changeset
|
851 self.deltaheader, node, p1n, p2n, basenode, linknode, flags) |
27432
77d25b913f80
changegroup: introduce cg3, which has support for exchanging treemanifests
Augie Fackler <augie@google.com>
parents:
27241
diff
changeset
|
852 |
27751
a40e2f7fe49d
changegroup: hide packermap behind methods
Martin von Zweigbergk <martinvonz@google.com>
parents:
27739
diff
changeset
|
853 _packermap = {'01': (cg1packer, cg1unpacker), |
26709
42733e956887
changegroup: reformat packermap and add comment
Augie Fackler <augie@google.com>
parents:
26708
diff
changeset
|
854 # cg2 adds support for exchanging generaldelta |
42733e956887
changegroup: reformat packermap and add comment
Augie Fackler <augie@google.com>
parents:
26708
diff
changeset
|
855 '02': (cg2packer, cg2unpacker), |
27753
d4071cc73f46
changegroup3: add empty chunk separating directories and files
Martin von Zweigbergk <martinvonz@google.com>
parents:
27752
diff
changeset
|
856 # cg3 adds support for exchanging revlog flags and treemanifests |
27432
77d25b913f80
changegroup: introduce cg3, which has support for exchanging treemanifests
Augie Fackler <augie@google.com>
parents:
27241
diff
changeset
|
857 '03': (cg3packer, cg3unpacker), |
26709
42733e956887
changegroup: reformat packermap and add comment
Augie Fackler <augie@google.com>
parents:
26708
diff
changeset
|
858 } |
23168
a92ba36a1a9d
changegroup: add a "packermap" dictionary to track different packer versions
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22971
diff
changeset
|
859 |
27953
88609cfa3745
changegroup: fix pulling to treemanifest repo from flat repo (issue5066)
Martin von Zweigbergk <martinvonz@google.com>
parents:
27946
diff
changeset
|
860 def allsupportedversions(ui): |
27928
c0f11347b107
changegroup: don't support versions 01 and 02 with treemanifests
Martin von Zweigbergk <martinvonz@google.com>
parents:
27920
diff
changeset
|
861 versions = set(_packermap.keys()) |
27953
88609cfa3745
changegroup: fix pulling to treemanifest repo from flat repo (issue5066)
Martin von Zweigbergk <martinvonz@google.com>
parents:
27946
diff
changeset
|
862 versions.discard('03') |
88609cfa3745
changegroup: fix pulling to treemanifest repo from flat repo (issue5066)
Martin von Zweigbergk <martinvonz@google.com>
parents:
27946
diff
changeset
|
863 if (ui.configbool('experimental', 'changegroup3') or |
88609cfa3745
changegroup: fix pulling to treemanifest repo from flat repo (issue5066)
Martin von Zweigbergk <martinvonz@google.com>
parents:
27946
diff
changeset
|
864 ui.configbool('experimental', 'treemanifest')): |
88609cfa3745
changegroup: fix pulling to treemanifest repo from flat repo (issue5066)
Martin von Zweigbergk <martinvonz@google.com>
parents:
27946
diff
changeset
|
865 versions.add('03') |
88609cfa3745
changegroup: fix pulling to treemanifest repo from flat repo (issue5066)
Martin von Zweigbergk <martinvonz@google.com>
parents:
27946
diff
changeset
|
866 return versions |
88609cfa3745
changegroup: fix pulling to treemanifest repo from flat repo (issue5066)
Martin von Zweigbergk <martinvonz@google.com>
parents:
27946
diff
changeset
|
867 |
88609cfa3745
changegroup: fix pulling to treemanifest repo from flat repo (issue5066)
Martin von Zweigbergk <martinvonz@google.com>
parents:
27946
diff
changeset
|
868 # 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
|
869 def supportedincomingversions(repo): |
88609cfa3745
changegroup: fix pulling to treemanifest repo from flat repo (issue5066)
Martin von Zweigbergk <martinvonz@google.com>
parents:
27946
diff
changeset
|
870 versions = allsupportedversions(repo.ui) |
88609cfa3745
changegroup: fix pulling to treemanifest repo from flat repo (issue5066)
Martin von Zweigbergk <martinvonz@google.com>
parents:
27946
diff
changeset
|
871 if 'treemanifest' in repo.requirements: |
88609cfa3745
changegroup: fix pulling to treemanifest repo from flat repo (issue5066)
Martin von Zweigbergk <martinvonz@google.com>
parents:
27946
diff
changeset
|
872 versions.add('03') |
88609cfa3745
changegroup: fix pulling to treemanifest repo from flat repo (issue5066)
Martin von Zweigbergk <martinvonz@google.com>
parents:
27946
diff
changeset
|
873 return versions |
88609cfa3745
changegroup: fix pulling to treemanifest repo from flat repo (issue5066)
Martin von Zweigbergk <martinvonz@google.com>
parents:
27946
diff
changeset
|
874 |
88609cfa3745
changegroup: fix pulling to treemanifest repo from flat repo (issue5066)
Martin von Zweigbergk <martinvonz@google.com>
parents:
27946
diff
changeset
|
875 # 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
|
876 def supportedoutgoingversions(repo): |
88609cfa3745
changegroup: fix pulling to treemanifest repo from flat repo (issue5066)
Martin von Zweigbergk <martinvonz@google.com>
parents:
27946
diff
changeset
|
877 versions = allsupportedversions(repo.ui) |
88609cfa3745
changegroup: fix pulling to treemanifest repo from flat repo (issue5066)
Martin von Zweigbergk <martinvonz@google.com>
parents:
27946
diff
changeset
|
878 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
|
879 # 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
|
880 # 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
|
881 # 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
|
882 # 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
|
883 # 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
|
884 versions.discard('01') |
c0f11347b107
changegroup: don't support versions 01 and 02 with treemanifests
Martin von Zweigbergk <martinvonz@google.com>
parents:
27920
diff
changeset
|
885 versions.discard('02') |
27953
88609cfa3745
changegroup: fix pulling to treemanifest repo from flat repo (issue5066)
Martin von Zweigbergk <martinvonz@google.com>
parents:
27946
diff
changeset
|
886 versions.add('03') |
27752
29cfc474c5fd
changegroup3: introduce experimental.changegroup3 boolean config
Martin von Zweigbergk <martinvonz@google.com>
parents:
27751
diff
changeset
|
887 return versions |
27751
a40e2f7fe49d
changegroup: hide packermap behind methods
Martin von Zweigbergk <martinvonz@google.com>
parents:
27739
diff
changeset
|
888 |
27929
3b2ac2115464
changegroup: introduce safeversion()
Martin von Zweigbergk <martinvonz@google.com>
parents:
27928
diff
changeset
|
889 def safeversion(repo): |
3b2ac2115464
changegroup: introduce safeversion()
Martin von Zweigbergk <martinvonz@google.com>
parents:
27928
diff
changeset
|
890 # 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
|
891 # 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
|
892 # support changegroup 02. |
27953
88609cfa3745
changegroup: fix pulling to treemanifest repo from flat repo (issue5066)
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893 versions = supportedoutgoingversions(repo) |
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894 if 'generaldelta' in repo.requirements: |
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895 versions.discard('01') |
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|
896 assert versions |
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897 return min(versions) |
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898 |
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899 def getbundler(version, repo, bundlecaps=None): |
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900 assert version in supportedoutgoingversions(repo) |
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901 return _packermap[version][0](repo, bundlecaps) |
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902 |
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903 def getunbundler(version, fh, alg): |
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|
904 return _packermap[version][1](fh, alg) |
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|
905 |
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906 def _changegroupinfo(repo, nodes, source): |
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907 if repo.ui.verbose or source == 'bundle': |
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908 repo.ui.status(_("%d changesets found\n") % len(nodes)) |
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909 if repo.ui.debugflag: |
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|
910 repo.ui.debug("list of changesets:\n") |
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911 for node in nodes: |
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912 repo.ui.debug("%s\n" % hex(node)) |
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913 |
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914 def getsubsetraw(repo, outgoing, bundler, source, fastpath=False): |
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915 repo = repo.unfiltered() |
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916 commonrevs = outgoing.common |
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917 csets = outgoing.missing |
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918 heads = outgoing.missingheads |
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919 # We go through the fast path if we get told to, or if all (unfiltered |
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920 # heads have been requested (since we then know there all linkrevs will |
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921 # be pulled by the client). |
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922 heads.sort() |
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923 fastpathlinkrev = fastpath or ( |
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924 repo.filtername is None and heads == sorted(repo.heads())) |
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925 |
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926 repo.hook('preoutgoing', throw=True, source=source) |
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927 _changegroupinfo(repo, csets, source) |
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928 return bundler.generate(commonrevs, csets, fastpathlinkrev, source) |
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929 |
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930 def getsubset(repo, outgoing, bundler, source, fastpath=False): |
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931 gengroup = getsubsetraw(repo, outgoing, bundler, source, fastpath) |
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932 return getunbundler(bundler.version, util.chunkbuffer(gengroup), None) |
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933 |
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934 def changegroupsubset(repo, roots, heads, source, version='01'): |
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935 """Compute a changegroup consisting of all the nodes that are |
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936 descendants of any of the roots and ancestors of any of the heads. |
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937 Return a chunkbuffer object whose read() method will return |
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938 successive changegroup chunks. |
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939 |
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940 It is fairly complex as determining which filenodes and which |
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|
941 manifest nodes need to be included for the changeset to be complete |
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942 is non-trivial. |
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943 |
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944 Another wrinkle is doing the reverse, figuring out which changeset in |
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945 the changegroup a particular filenode or manifestnode belongs to. |
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946 """ |
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947 cl = repo.changelog |
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948 if not roots: |
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949 roots = [nullid] |
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950 discbases = [] |
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951 for n in roots: |
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952 discbases.extend([p for p in cl.parents(n) if p != nullid]) |
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953 # TODO: remove call to nodesbetween. |
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954 csets, roots, heads = cl.nodesbetween(roots, heads) |
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955 included = set(csets) |
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956 discbases = [n for n in discbases if n not in included] |
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957 outgoing = discovery.outgoing(cl, discbases, heads) |
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958 bundler = getbundler(version, repo) |
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959 return getsubset(repo, outgoing, bundler, source) |
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960 |
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|
961 def getlocalchangegroupraw(repo, source, outgoing, bundlecaps=None, |
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962 version='01'): |
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963 """Like getbundle, but taking a discovery.outgoing as an argument. |
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964 |
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965 This is only implemented for local repos and reuses potentially |
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|
966 precomputed sets in outgoing. Returns a raw changegroup generator.""" |
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967 if not outgoing.missing: |
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968 return None |
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969 bundler = getbundler(version, repo, bundlecaps) |
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970 return getsubsetraw(repo, outgoing, bundler, source) |
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971 |
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|
972 def getlocalchangegroup(repo, source, outgoing, bundlecaps=None, |
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|
973 version='01'): |
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974 """Like getbundle, but taking a discovery.outgoing as an argument. |
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975 |
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976 This is only implemented for local repos and reuses potentially |
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977 precomputed sets in outgoing.""" |
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978 if not outgoing.missing: |
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979 return None |
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980 bundler = getbundler(version, repo, bundlecaps) |
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981 return getsubset(repo, outgoing, bundler, source) |
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982 |
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|
983 def computeoutgoing(repo, heads, common): |
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984 """Computes which revs are outgoing given a set of common |
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985 and a set of heads. |
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986 |
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987 This is a separate function so extensions can have access to |
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|
988 the logic. |
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989 |
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990 Returns a discovery.outgoing object. |
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991 """ |
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992 cl = repo.changelog |
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993 if common: |
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994 hasnode = cl.hasnode |
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995 common = [n for n in common if hasnode(n)] |
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996 else: |
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997 common = [nullid] |
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998 if not heads: |
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999 heads = cl.heads() |
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1000 return discovery.outgoing(cl, common, heads) |
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1001 |
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1002 def getchangegroup(repo, source, heads=None, common=None, bundlecaps=None, |
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1003 version='01'): |
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1004 """Like changegroupsubset, but returns the set difference between the |
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1005 ancestors of heads and the ancestors common. |
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1006 |
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1007 If heads is None, use the local heads. If common is None, use [nullid]. |
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1008 |
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1009 The nodes in common might not all be known locally due to the way the |
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1010 current discovery protocol works. |
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1011 """ |
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changegroup: rename _computeoutgoing to computeoutgoing
Gregory Szorc <gregory.szorc@gmail.com>
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1012 outgoing = computeoutgoing(repo, heads, common) |
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1013 return getlocalchangegroup(repo, source, outgoing, bundlecaps=bundlecaps, |
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1014 version=version) |
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1015 |
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1016 def changegroup(repo, basenodes, source): |
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1017 # to avoid a race we use changegroupsubset() (issue1320) |
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1018 return changegroupsubset(repo, basenodes, repo.heads(), source) |
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1019 |
28361
277a22cd8741
changegroup: progress for added files is not measured in "chunks"
Martin von Zweigbergk <martinvonz@google.com>
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1020 def _addchangegroupfiles(repo, source, revmap, trp, expectedfiles, needfiles): |
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1021 revisions = 0 |
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1022 files = 0 |
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1023 while True: |
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1024 chunkdata = source.filelogheader() |
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1025 if not chunkdata: |
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1026 break |
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1027 files += 1 |
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1028 f = chunkdata["filename"] |
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1029 repo.ui.debug("adding %s revisions\n" % f) |
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1030 repo.ui.progress(_('files'), files, unit=_('files'), |
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1031 total=expectedfiles) |
27754
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changegroup3: move treemanifest support into _unpackmanifests()
Martin von Zweigbergk <martinvonz@google.com>
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1032 fl = repo.file(f) |
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1033 o = len(fl) |
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revlog: in addgroup, reject ill-formed deltas based on censored nodes
Mike Edgar <adgar@google.com>
parents:
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1034 try: |
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revlog: in addgroup, reject ill-formed deltas based on censored nodes
Mike Edgar <adgar@google.com>
parents:
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1035 if not fl.addgroup(source, revmap, trp): |
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error: get Abort from 'error' instead of 'util'
Pierre-Yves David <pierre-yves.david@fb.com>
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1036 raise error.Abort(_("received file revlog group is empty")) |
25660
328739ea70c3
global: mass rewrite to use modern exception syntax
Gregory Szorc <gregory.szorc@gmail.com>
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1037 except error.CensoredBaseError as e: |
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1038 raise error.Abort(_("received delta base is censored: %s") % e) |
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1039 revisions += len(fl) - o |
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1040 if f in needfiles: |
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1041 needs = needfiles[f] |
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1042 for new in xrange(o, len(fl)): |
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1043 n = fl.node(new) |
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1044 if n in needs: |
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1045 needs.remove(n) |
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1046 else: |
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1047 raise error.Abort( |
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1048 _("received spurious file revlog entry")) |
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1049 if not needs: |
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1050 del needfiles[f] |
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1051 repo.ui.progress(_('files'), None) |
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1052 |
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1053 for f, needs in needfiles.iteritems(): |
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1054 fl = repo.file(f) |
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1055 for n in needs: |
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1056 try: |
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1057 fl.rev(n) |
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1058 except error.LookupError: |
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1059 raise error.Abort( |
20932
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1060 _('missing file data for %s:%s - run hg verify') % |
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1061 (f, hex(n))) |
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1062 |
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1063 return revisions, files |