Mercurial > hg
annotate hgext/lfs/blobstore.py @ 40857:2041991f1ce2
rebase: remove now-unnecessary arguments to _abort()
Since _abort() is now an instance method, we don't need to pass state
that's available on "self".
Differential Revision: https://phab.mercurial-scm.org/D5393
author | Martin von Zweigbergk <martinvonz@google.com> |
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date | Sun, 04 Mar 2018 08:50:12 -0800 |
parents | 9fcf8084ada8 |
children | 02d0a7774882 |
rev | line source |
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1 # blobstore.py - local and remote (speaking Git-LFS protocol) blob storages |
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2 # |
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3 # Copyright 2017 Facebook, Inc. |
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4 # |
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5 # This software may be used and distributed according to the terms of the |
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6 # GNU General Public License version 2 or any later version. |
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7 |
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8 from __future__ import absolute_import |
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9 |
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10 import contextlib |
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11 import errno |
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12 import hashlib |
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13 import json |
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14 import os |
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15 import re |
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16 import socket |
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17 |
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18 from mercurial.i18n import _ |
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19 |
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20 from mercurial import ( |
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21 encoding, |
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22 error, |
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23 node, |
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24 pathutil, |
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25 pycompat, |
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26 url as urlmod, |
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27 util, |
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28 vfs as vfsmod, |
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29 worker, |
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30 ) |
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31 |
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32 from mercurial.utils import ( |
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33 stringutil, |
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34 ) |
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35 |
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36 from ..largefiles import lfutil |
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37 |
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38 # 64 bytes for SHA256 |
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39 _lfsre = re.compile(br'\A[a-f0-9]{64}\Z') |
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40 |
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41 class lfsvfs(vfsmod.vfs): |
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42 def join(self, path): |
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43 """split the path at first two characters, like: XX/XXXXX...""" |
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44 if not _lfsre.match(path): |
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45 raise error.ProgrammingError('unexpected lfs path: %s' % path) |
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46 return super(lfsvfs, self).join(path[0:2], path[2:]) |
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47 |
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48 def walk(self, path=None, onerror=None): |
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49 """Yield (dirpath, [], oids) tuple for blobs under path |
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50 |
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51 Oids only exist in the root of this vfs, so dirpath is always ''. |
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52 """ |
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53 root = os.path.normpath(self.base) |
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54 # when dirpath == root, dirpath[prefixlen:] becomes empty |
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55 # because len(dirpath) < prefixlen. |
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56 prefixlen = len(pathutil.normasprefix(root)) |
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57 oids = [] |
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58 |
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59 for dirpath, dirs, files in os.walk(self.reljoin(self.base, path or ''), |
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60 onerror=onerror): |
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61 dirpath = dirpath[prefixlen:] |
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62 |
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63 # Silently skip unexpected files and directories |
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64 if len(dirpath) == 2: |
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65 oids.extend([dirpath + f for f in files |
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66 if _lfsre.match(dirpath + f)]) |
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67 |
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68 yield ('', [], oids) |
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69 |
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70 class nullvfs(lfsvfs): |
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71 def __init__(self): |
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72 pass |
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73 |
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74 def exists(self, oid): |
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75 return False |
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76 |
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77 def read(self, oid): |
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78 # store.read() calls into here if the blob doesn't exist in its |
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79 # self.vfs. Raise the same error as a normal vfs when asked to read a |
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80 # file that doesn't exist. The only difference is the full file path |
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81 # isn't available in the error. |
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82 raise IOError(errno.ENOENT, '%s: No such file or directory' % oid) |
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83 |
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84 def walk(self, path=None, onerror=None): |
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85 return ('', [], []) |
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86 |
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87 def write(self, oid, data): |
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88 pass |
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89 |
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90 class filewithprogress(object): |
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91 """a file-like object that supports __len__ and read. |
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92 |
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93 Useful to provide progress information for how many bytes are read. |
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94 """ |
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95 |
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96 def __init__(self, fp, callback): |
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97 self._fp = fp |
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98 self._callback = callback # func(readsize) |
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99 fp.seek(0, os.SEEK_END) |
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100 self._len = fp.tell() |
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101 fp.seek(0) |
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102 |
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103 def __len__(self): |
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104 return self._len |
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105 |
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106 def read(self, size): |
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107 if self._fp is None: |
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108 return b'' |
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109 data = self._fp.read(size) |
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110 if data: |
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111 if self._callback: |
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112 self._callback(len(data)) |
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113 else: |
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114 self._fp.close() |
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115 self._fp = None |
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116 return data |
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117 |
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118 class local(object): |
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119 """Local blobstore for large file contents. |
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120 |
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121 This blobstore is used both as a cache and as a staging area for large blobs |
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122 to be uploaded to the remote blobstore. |
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123 """ |
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124 |
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125 def __init__(self, repo): |
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126 fullpath = repo.svfs.join('lfs/objects') |
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127 self.vfs = lfsvfs(fullpath) |
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128 |
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129 if repo.ui.configbool('experimental', 'lfs.disableusercache'): |
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130 self.cachevfs = nullvfs() |
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131 else: |
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132 usercache = lfutil._usercachedir(repo.ui, 'lfs') |
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133 self.cachevfs = lfsvfs(usercache) |
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134 self.ui = repo.ui |
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135 |
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136 def open(self, oid): |
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137 """Open a read-only file descriptor to the named blob, in either the |
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138 usercache or the local store.""" |
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139 # The usercache is the most likely place to hold the file. Commit will |
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140 # write to both it and the local store, as will anything that downloads |
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141 # the blobs. However, things like clone without an update won't |
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142 # populate the local store. For an init + push of a local clone, |
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143 # the usercache is the only place it _could_ be. If not present, the |
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144 # missing file msg here will indicate the local repo, not the usercache. |
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145 if self.cachevfs.exists(oid): |
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146 return self.cachevfs(oid, 'rb') |
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147 |
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148 return self.vfs(oid, 'rb') |
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149 |
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150 def download(self, oid, src): |
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151 """Read the blob from the remote source in chunks, verify the content, |
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152 and write to this local blobstore.""" |
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153 sha256 = hashlib.sha256() |
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154 |
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155 with self.vfs(oid, 'wb', atomictemp=True) as fp: |
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156 for chunk in util.filechunkiter(src, size=1048576): |
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157 fp.write(chunk) |
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158 sha256.update(chunk) |
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159 |
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160 realoid = node.hex(sha256.digest()) |
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161 if realoid != oid: |
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162 raise LfsCorruptionError(_('corrupt remote lfs object: %s') |
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163 % oid) |
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164 |
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165 self._linktousercache(oid) |
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166 |
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167 def write(self, oid, data): |
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168 """Write blob to local blobstore. |
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169 |
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170 This should only be called from the filelog during a commit or similar. |
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171 As such, there is no need to verify the data. Imports from a remote |
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172 store must use ``download()`` instead.""" |
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173 with self.vfs(oid, 'wb', atomictemp=True) as fp: |
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174 fp.write(data) |
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175 |
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176 self._linktousercache(oid) |
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177 |
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178 def linkfromusercache(self, oid): |
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179 """Link blobs found in the user cache into this store. |
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180 |
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181 The server module needs to do this when it lets the client know not to |
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182 upload the blob, to ensure it is always available in this store. |
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183 Normally this is done implicitly when the client reads or writes the |
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184 blob, but that doesn't happen when the server tells the client that it |
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185 already has the blob. |
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186 """ |
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187 if (not isinstance(self.cachevfs, nullvfs) |
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188 and not self.vfs.exists(oid)): |
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189 self.ui.note(_('lfs: found %s in the usercache\n') % oid) |
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190 lfutil.link(self.cachevfs.join(oid), self.vfs.join(oid)) |
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191 |
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192 def _linktousercache(self, oid): |
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193 # XXX: should we verify the content of the cache, and hardlink back to |
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194 # the local store on success, but truncate, write and link on failure? |
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195 if (not self.cachevfs.exists(oid) |
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196 and not isinstance(self.cachevfs, nullvfs)): |
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197 self.ui.note(_('lfs: adding %s to the usercache\n') % oid) |
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198 lfutil.link(self.vfs.join(oid), self.cachevfs.join(oid)) |
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199 |
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200 def read(self, oid, verify=True): |
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201 """Read blob from local blobstore.""" |
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202 if not self.vfs.exists(oid): |
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203 blob = self._read(self.cachevfs, oid, verify) |
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204 |
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205 # Even if revlog will verify the content, it needs to be verified |
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206 # now before making the hardlink to avoid propagating corrupt blobs. |
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207 # Don't abort if corruption is detected, because `hg verify` will |
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208 # give more useful info about the corruption- simply don't add the |
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209 # hardlink. |
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210 if verify or node.hex(hashlib.sha256(blob).digest()) == oid: |
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211 self.ui.note(_('lfs: found %s in the usercache\n') % oid) |
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212 lfutil.link(self.cachevfs.join(oid), self.vfs.join(oid)) |
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213 else: |
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214 self.ui.note(_('lfs: found %s in the local lfs store\n') % oid) |
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215 blob = self._read(self.vfs, oid, verify) |
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216 return blob |
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217 |
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218 def _read(self, vfs, oid, verify): |
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219 """Read blob (after verifying) from the given store""" |
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220 blob = vfs.read(oid) |
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221 if verify: |
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222 _verify(oid, blob) |
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223 return blob |
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224 |
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225 def verify(self, oid): |
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226 """Indicate whether or not the hash of the underlying file matches its |
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227 name.""" |
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228 sha256 = hashlib.sha256() |
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229 |
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230 with self.open(oid) as fp: |
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231 for chunk in util.filechunkiter(fp, size=1048576): |
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232 sha256.update(chunk) |
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233 |
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234 return oid == node.hex(sha256.digest()) |
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235 |
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236 def has(self, oid): |
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237 """Returns True if the local blobstore contains the requested blob, |
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238 False otherwise.""" |
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239 return self.cachevfs.exists(oid) or self.vfs.exists(oid) |
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240 |
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241 def _urlerrorreason(urlerror): |
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242 '''Create a friendly message for the given URLError to be used in an |
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243 LfsRemoteError message. |
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244 ''' |
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245 inst = urlerror |
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246 |
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247 if isinstance(urlerror.reason, Exception): |
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248 inst = urlerror.reason |
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249 |
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250 if util.safehasattr(inst, 'reason'): |
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251 try: # usually it is in the form (errno, strerror) |
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252 reason = inst.reason.args[1] |
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253 except (AttributeError, IndexError): |
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254 # it might be anything, for example a string |
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255 reason = inst.reason |
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256 if isinstance(reason, pycompat.unicode): |
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257 # SSLError of Python 2.7.9 contains a unicode |
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258 reason = encoding.unitolocal(reason) |
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259 return reason |
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260 elif getattr(inst, "strerror", None): |
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261 return encoding.strtolocal(inst.strerror) |
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262 else: |
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263 return stringutil.forcebytestr(urlerror) |
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264 |
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265 class _gitlfsremote(object): |
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266 |
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267 def __init__(self, repo, url): |
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268 ui = repo.ui |
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269 self.ui = ui |
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270 baseurl, authinfo = url.authinfo() |
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271 self.baseurl = baseurl.rstrip('/') |
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272 useragent = repo.ui.config('experimental', 'lfs.user-agent') |
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273 if not useragent: |
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274 useragent = 'git-lfs/2.3.4 (Mercurial %s)' % util.version() |
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275 self.urlopener = urlmod.opener(ui, authinfo, useragent) |
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276 self.retry = ui.configint('lfs', 'retry') |
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277 |
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278 def writebatch(self, pointers, fromstore): |
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279 """Batch upload from local to remote blobstore.""" |
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280 self._batch(_deduplicate(pointers), fromstore, 'upload') |
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281 |
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282 def readbatch(self, pointers, tostore): |
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283 """Batch download from remote to local blostore.""" |
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284 self._batch(_deduplicate(pointers), tostore, 'download') |
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285 |
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286 def _batchrequest(self, pointers, action): |
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287 """Get metadata about objects pointed by pointers for given action |
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288 |
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289 Return decoded JSON object like {'objects': [{'oid': '', 'size': 1}]} |
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290 See https://github.com/git-lfs/git-lfs/blob/master/docs/api/batch.md |
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291 """ |
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292 objects = [{'oid': p.oid(), 'size': p.size()} for p in pointers] |
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293 requestdata = json.dumps({ |
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294 'objects': objects, |
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295 'operation': action, |
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296 }) |
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297 url = '%s/objects/batch' % self.baseurl |
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298 batchreq = util.urlreq.request(url, data=requestdata) |
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299 batchreq.add_header('Accept', 'application/vnd.git-lfs+json') |
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300 batchreq.add_header('Content-Type', 'application/vnd.git-lfs+json') |
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301 try: |
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302 with contextlib.closing(self.urlopener.open(batchreq)) as rsp: |
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303 rawjson = rsp.read() |
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304 except util.urlerr.httperror as ex: |
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305 hints = { |
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306 400: _('check that lfs serving is enabled on %s and "%s" is ' |
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307 'supported') % (self.baseurl, action), |
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308 404: _('the "lfs.url" config may be used to override %s') |
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309 % self.baseurl, |
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310 } |
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311 hint = hints.get(ex.code, _('api=%s, action=%s') % (url, action)) |
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312 raise LfsRemoteError(_('LFS HTTP error: %s') % ex, hint=hint) |
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313 except util.urlerr.urlerror as ex: |
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314 hint = (_('the "lfs.url" config may be used to override %s') |
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315 % self.baseurl) |
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316 raise LfsRemoteError(_('LFS error: %s') % _urlerrorreason(ex), |
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317 hint=hint) |
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318 try: |
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319 response = json.loads(rawjson) |
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320 except ValueError: |
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321 raise LfsRemoteError(_('LFS server returns invalid JSON: %s') |
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322 % rawjson) |
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323 |
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324 if self.ui.debugflag: |
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325 self.ui.debug('Status: %d\n' % rsp.status) |
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326 # lfs-test-server and hg serve return headers in different order |
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327 self.ui.debug('%s\n' |
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328 % '\n'.join(sorted(str(rsp.info()).splitlines()))) |
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329 |
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330 if 'objects' in response: |
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331 response['objects'] = sorted(response['objects'], |
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332 key=lambda p: p['oid']) |
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333 self.ui.debug('%s\n' |
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334 % json.dumps(response, indent=2, |
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335 separators=('', ': '), sort_keys=True)) |
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336 |
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337 return response |
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338 |
35666 | 339 def _checkforservererror(self, pointers, responses, action): |
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340 """Scans errors from objects |
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341 |
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342 Raises LfsRemoteError if any objects have an error""" |
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343 for response in responses: |
35666 | 344 # The server should return 404 when objects cannot be found. Some |
345 # server implementation (ex. lfs-test-server) does not set "error" | |
346 # but just removes "download" from "actions". Treat that case | |
347 # as the same as 404 error. | |
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348 if 'error' not in response: |
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349 if (action == 'download' |
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350 and action not in response.get('actions', [])): |
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351 code = 404 |
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352 else: |
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353 continue |
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354 else: |
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355 # An error dict without a code doesn't make much sense, so |
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356 # treat as a server error. |
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357 code = response.get('error').get('code', 500) |
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358 |
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359 ptrmap = {p.oid(): p for p in pointers} |
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360 p = ptrmap.get(response['oid'], None) |
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361 if p: |
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362 filename = getattr(p, 'filename', 'unknown') |
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363 errors = { |
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364 404: 'The object does not exist', |
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365 410: 'The object was removed by the owner', |
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366 422: 'Validation error', |
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367 500: 'Internal server error', |
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368 } |
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369 msg = errors.get(code, 'status code %d' % code) |
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370 raise LfsRemoteError(_('LFS server error for "%s": %s') |
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371 % (filename, msg)) |
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372 else: |
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373 raise LfsRemoteError( |
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374 _('LFS server error. Unsolicited response for oid %s') |
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375 % response['oid']) |
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376 |
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377 def _extractobjects(self, response, pointers, action): |
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378 """extract objects from response of the batch API |
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379 |
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380 response: parsed JSON object returned by batch API |
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381 return response['objects'] filtered by action |
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382 raise if any object has an error |
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383 """ |
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384 # Scan errors from objects - fail early |
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385 objects = response.get('objects', []) |
35666 | 386 self._checkforservererror(pointers, objects, action) |
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387 |
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388 # Filter objects with given action. Practically, this skips uploading |
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389 # objects which exist in the server. |
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390 filteredobjects = [o for o in objects if action in o.get('actions', [])] |
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391 |
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392 return filteredobjects |
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393 |
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394 def _basictransfer(self, obj, action, localstore): |
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395 """Download or upload a single object using basic transfer protocol |
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396 |
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397 obj: dict, an object description returned by batch API |
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398 action: string, one of ['upload', 'download'] |
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399 localstore: blobstore.local |
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400 |
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401 See https://github.com/git-lfs/git-lfs/blob/master/docs/api/\ |
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402 basic-transfers.md |
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403 """ |
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404 oid = pycompat.bytestr(obj['oid']) |
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405 |
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406 href = pycompat.bytestr(obj['actions'][action].get('href')) |
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407 headers = obj['actions'][action].get('header', {}).items() |
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408 |
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409 request = util.urlreq.request(href) |
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410 if action == 'upload': |
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411 # If uploading blobs, read data from local blobstore. |
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412 if not localstore.verify(oid): |
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413 raise error.Abort(_('detected corrupt lfs object: %s') % oid, |
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414 hint=_('run hg verify')) |
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415 request.data = filewithprogress(localstore.open(oid), None) |
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416 request.get_method = lambda: 'PUT' |
37243
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417 request.add_header('Content-Type', 'application/octet-stream') |
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418 |
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419 for k, v in headers: |
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420 request.add_header(k, v) |
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421 |
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422 response = b'' |
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423 try: |
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424 with contextlib.closing(self.urlopener.open(request)) as req: |
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425 ui = self.ui # Shorten debug lines |
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426 if self.ui.debugflag: |
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427 ui.debug('Status: %d\n' % req.status) |
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428 # lfs-test-server and hg serve return headers in different |
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429 # order |
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430 ui.debug('%s\n' |
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431 % '\n'.join(sorted(str(req.info()).splitlines()))) |
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432 |
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433 if action == 'download': |
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434 # If downloading blobs, store downloaded data to local |
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|
435 # blobstore |
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436 localstore.download(oid, req) |
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437 else: |
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438 while True: |
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439 data = req.read(1048576) |
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440 if not data: |
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441 break |
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442 response += data |
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443 if response: |
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444 ui.debug('lfs %s response: %s' % (action, response)) |
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445 except util.urlerr.httperror as ex: |
35734
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446 if self.ui.debugflag: |
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447 self.ui.debug('%s: %s\n' % (oid, ex.read())) |
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|
448 raise LfsRemoteError(_('LFS HTTP error: %s (oid=%s, action=%s)') |
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449 % (ex, oid, action)) |
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diff
changeset
|
450 except util.urlerr.urlerror as ex: |
380f5131ee7b
lfs: handle URLErrors to add additional information
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parents:
40660
diff
changeset
|
451 hint = (_('attempted connection to %s') |
380f5131ee7b
lfs: handle URLErrors to add additional information
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parents:
40660
diff
changeset
|
452 % util.urllibcompat.getfullurl(request)) |
380f5131ee7b
lfs: handle URLErrors to add additional information
Matt Harbison <matt_harbison@yahoo.com>
parents:
40660
diff
changeset
|
453 raise LfsRemoteError(_('LFS error: %s') % _urlerrorreason(ex), |
380f5131ee7b
lfs: handle URLErrors to add additional information
Matt Harbison <matt_harbison@yahoo.com>
parents:
40660
diff
changeset
|
454 hint=hint) |
35098
66c5a8cf2868
lfs: import the Facebook git-lfs client extension
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff
changeset
|
455 |
66c5a8cf2868
lfs: import the Facebook git-lfs client extension
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff
changeset
|
456 def _batch(self, pointers, localstore, action): |
66c5a8cf2868
lfs: import the Facebook git-lfs client extension
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff
changeset
|
457 if action not in ['upload', 'download']: |
66c5a8cf2868
lfs: import the Facebook git-lfs client extension
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff
changeset
|
458 raise error.ProgrammingError('invalid Git-LFS action: %s' % action) |
66c5a8cf2868
lfs: import the Facebook git-lfs client extension
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff
changeset
|
459 |
66c5a8cf2868
lfs: import the Facebook git-lfs client extension
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff
changeset
|
460 response = self._batchrequest(pointers, action) |
66c5a8cf2868
lfs: import the Facebook git-lfs client extension
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff
changeset
|
461 objects = self._extractobjects(response, pointers, action) |
66c5a8cf2868
lfs: import the Facebook git-lfs client extension
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff
changeset
|
462 total = sum(x.get('size', 0) for x in objects) |
35433
f98fac24b757
lfs: using workers in lfs prefetch
Wojciech Lis <wlis@fb.com>
parents:
35396
diff
changeset
|
463 sizes = {} |
f98fac24b757
lfs: using workers in lfs prefetch
Wojciech Lis <wlis@fb.com>
parents:
35396
diff
changeset
|
464 for obj in objects: |
f98fac24b757
lfs: using workers in lfs prefetch
Wojciech Lis <wlis@fb.com>
parents:
35396
diff
changeset
|
465 sizes[obj.get('oid')] = obj.get('size', 0) |
35098
66c5a8cf2868
lfs: import the Facebook git-lfs client extension
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff
changeset
|
466 topic = {'upload': _('lfs uploading'), |
66c5a8cf2868
lfs: import the Facebook git-lfs client extension
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff
changeset
|
467 'download': _('lfs downloading')}[action] |
35478
5a73a0446afd
lfs: use ui.note() and ui.debug() instead of ui.write() and their flags
Matt Harbison <matt_harbison@yahoo.com>
parents:
35477
diff
changeset
|
468 if len(objects) > 1: |
5a73a0446afd
lfs: use ui.note() and ui.debug() instead of ui.write() and their flags
Matt Harbison <matt_harbison@yahoo.com>
parents:
35477
diff
changeset
|
469 self.ui.note(_('lfs: need to transfer %d objects (%s)\n') |
5a73a0446afd
lfs: use ui.note() and ui.debug() instead of ui.write() and their flags
Matt Harbison <matt_harbison@yahoo.com>
parents:
35477
diff
changeset
|
470 % (len(objects), util.bytecount(total))) |
39389
b26350d9d7b5
lfs: use a context manager to control the progress bar lifetime
Matt Harbison <matt_harbison@yahoo.com>
parents:
38405
diff
changeset
|
471 |
35433
f98fac24b757
lfs: using workers in lfs prefetch
Wojciech Lis <wlis@fb.com>
parents:
35396
diff
changeset
|
472 def transfer(chunk): |
f98fac24b757
lfs: using workers in lfs prefetch
Wojciech Lis <wlis@fb.com>
parents:
35396
diff
changeset
|
473 for obj in chunk: |
f98fac24b757
lfs: using workers in lfs prefetch
Wojciech Lis <wlis@fb.com>
parents:
35396
diff
changeset
|
474 objsize = obj.get('size', 0) |
f98fac24b757
lfs: using workers in lfs prefetch
Wojciech Lis <wlis@fb.com>
parents:
35396
diff
changeset
|
475 if self.ui.verbose: |
f98fac24b757
lfs: using workers in lfs prefetch
Wojciech Lis <wlis@fb.com>
parents:
35396
diff
changeset
|
476 if action == 'download': |
f98fac24b757
lfs: using workers in lfs prefetch
Wojciech Lis <wlis@fb.com>
parents:
35396
diff
changeset
|
477 msg = _('lfs: downloading %s (%s)\n') |
f98fac24b757
lfs: using workers in lfs prefetch
Wojciech Lis <wlis@fb.com>
parents:
35396
diff
changeset
|
478 elif action == 'upload': |
f98fac24b757
lfs: using workers in lfs prefetch
Wojciech Lis <wlis@fb.com>
parents:
35396
diff
changeset
|
479 msg = _('lfs: uploading %s (%s)\n') |
35478
5a73a0446afd
lfs: use ui.note() and ui.debug() instead of ui.write() and their flags
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parents:
35477
diff
changeset
|
480 self.ui.note(msg % (obj.get('oid'), |
5a73a0446afd
lfs: use ui.note() and ui.debug() instead of ui.write() and their flags
Matt Harbison <matt_harbison@yahoo.com>
parents:
35477
diff
changeset
|
481 util.bytecount(objsize))) |
35433
f98fac24b757
lfs: using workers in lfs prefetch
Wojciech Lis <wlis@fb.com>
parents:
35396
diff
changeset
|
482 retry = self.retry |
f98fac24b757
lfs: using workers in lfs prefetch
Wojciech Lis <wlis@fb.com>
parents:
35396
diff
changeset
|
483 while True: |
f98fac24b757
lfs: using workers in lfs prefetch
Wojciech Lis <wlis@fb.com>
parents:
35396
diff
changeset
|
484 try: |
f98fac24b757
lfs: using workers in lfs prefetch
Wojciech Lis <wlis@fb.com>
parents:
35396
diff
changeset
|
485 self._basictransfer(obj, action, localstore) |
f98fac24b757
lfs: using workers in lfs prefetch
Wojciech Lis <wlis@fb.com>
parents:
35396
diff
changeset
|
486 yield 1, obj.get('oid') |
f98fac24b757
lfs: using workers in lfs prefetch
Wojciech Lis <wlis@fb.com>
parents:
35396
diff
changeset
|
487 break |
35475
b0c01a5ee35c
lfs: narrow the exceptions that trigger a transfer retry
Matt Harbison <matt_harbison@yahoo.com>
parents:
35473
diff
changeset
|
488 except socket.error as ex: |
35433
f98fac24b757
lfs: using workers in lfs prefetch
Wojciech Lis <wlis@fb.com>
parents:
35396
diff
changeset
|
489 if retry > 0: |
35478
5a73a0446afd
lfs: use ui.note() and ui.debug() instead of ui.write() and their flags
Matt Harbison <matt_harbison@yahoo.com>
parents:
35477
diff
changeset
|
490 self.ui.note( |
5a73a0446afd
lfs: use ui.note() and ui.debug() instead of ui.write() and their flags
Matt Harbison <matt_harbison@yahoo.com>
parents:
35477
diff
changeset
|
491 _('lfs: failed: %r (remaining retry %d)\n') |
5a73a0446afd
lfs: use ui.note() and ui.debug() instead of ui.write() and their flags
Matt Harbison <matt_harbison@yahoo.com>
parents:
35477
diff
changeset
|
492 % (ex, retry)) |
35433
f98fac24b757
lfs: using workers in lfs prefetch
Wojciech Lis <wlis@fb.com>
parents:
35396
diff
changeset
|
493 retry -= 1 |
f98fac24b757
lfs: using workers in lfs prefetch
Wojciech Lis <wlis@fb.com>
parents:
35396
diff
changeset
|
494 continue |
f98fac24b757
lfs: using workers in lfs prefetch
Wojciech Lis <wlis@fb.com>
parents:
35396
diff
changeset
|
495 raise |
f98fac24b757
lfs: using workers in lfs prefetch
Wojciech Lis <wlis@fb.com>
parents:
35396
diff
changeset
|
496 |
35732
10e62d5efa73
lfs: default to not using workers for upload/download
Matt Harbison <matt_harbison@yahoo.com>
parents:
35695
diff
changeset
|
497 # Until https multiplexing gets sorted out |
10e62d5efa73
lfs: default to not using workers for upload/download
Matt Harbison <matt_harbison@yahoo.com>
parents:
35695
diff
changeset
|
498 if self.ui.configbool('experimental', 'lfs.worker-enable'): |
10e62d5efa73
lfs: default to not using workers for upload/download
Matt Harbison <matt_harbison@yahoo.com>
parents:
35695
diff
changeset
|
499 oids = worker.worker(self.ui, 0.1, transfer, (), |
10e62d5efa73
lfs: default to not using workers for upload/download
Matt Harbison <matt_harbison@yahoo.com>
parents:
35695
diff
changeset
|
500 sorted(objects, key=lambda o: o.get('oid'))) |
10e62d5efa73
lfs: default to not using workers for upload/download
Matt Harbison <matt_harbison@yahoo.com>
parents:
35695
diff
changeset
|
501 else: |
10e62d5efa73
lfs: default to not using workers for upload/download
Matt Harbison <matt_harbison@yahoo.com>
parents:
35695
diff
changeset
|
502 oids = transfer(sorted(objects, key=lambda o: o.get('oid'))) |
10e62d5efa73
lfs: default to not using workers for upload/download
Matt Harbison <matt_harbison@yahoo.com>
parents:
35695
diff
changeset
|
503 |
39389
b26350d9d7b5
lfs: use a context manager to control the progress bar lifetime
Matt Harbison <matt_harbison@yahoo.com>
parents:
38405
diff
changeset
|
504 with self.ui.makeprogress(topic, total=total) as progress: |
b26350d9d7b5
lfs: use a context manager to control the progress bar lifetime
Matt Harbison <matt_harbison@yahoo.com>
parents:
38405
diff
changeset
|
505 progress.update(0) |
b26350d9d7b5
lfs: use a context manager to control the progress bar lifetime
Matt Harbison <matt_harbison@yahoo.com>
parents:
38405
diff
changeset
|
506 processed = 0 |
b26350d9d7b5
lfs: use a context manager to control the progress bar lifetime
Matt Harbison <matt_harbison@yahoo.com>
parents:
38405
diff
changeset
|
507 blobs = 0 |
b26350d9d7b5
lfs: use a context manager to control the progress bar lifetime
Matt Harbison <matt_harbison@yahoo.com>
parents:
38405
diff
changeset
|
508 for _one, oid in oids: |
b26350d9d7b5
lfs: use a context manager to control the progress bar lifetime
Matt Harbison <matt_harbison@yahoo.com>
parents:
38405
diff
changeset
|
509 processed += sizes[oid] |
b26350d9d7b5
lfs: use a context manager to control the progress bar lifetime
Matt Harbison <matt_harbison@yahoo.com>
parents:
38405
diff
changeset
|
510 blobs += 1 |
b26350d9d7b5
lfs: use a context manager to control the progress bar lifetime
Matt Harbison <matt_harbison@yahoo.com>
parents:
38405
diff
changeset
|
511 progress.update(processed) |
b26350d9d7b5
lfs: use a context manager to control the progress bar lifetime
Matt Harbison <matt_harbison@yahoo.com>
parents:
38405
diff
changeset
|
512 self.ui.note(_('lfs: processed: %s\n') % oid) |
35098
66c5a8cf2868
lfs: import the Facebook git-lfs client extension
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff
changeset
|
513 |
35881
fa993c3c8462
lfs: emit a status message to indicate how many blobs were uploaded
Matt Harbison <matt_harbison@yahoo.com>
parents:
35753
diff
changeset
|
514 if blobs > 0: |
fa993c3c8462
lfs: emit a status message to indicate how many blobs were uploaded
Matt Harbison <matt_harbison@yahoo.com>
parents:
35753
diff
changeset
|
515 if action == 'upload': |
fa993c3c8462
lfs: emit a status message to indicate how many blobs were uploaded
Matt Harbison <matt_harbison@yahoo.com>
parents:
35753
diff
changeset
|
516 self.ui.status(_('lfs: uploaded %d files (%s)\n') |
fa993c3c8462
lfs: emit a status message to indicate how many blobs were uploaded
Matt Harbison <matt_harbison@yahoo.com>
parents:
35753
diff
changeset
|
517 % (blobs, util.bytecount(processed))) |
37765
ab04972a33ef
lfs: enable the final download count status message
Matt Harbison <matt_harbison@yahoo.com>
parents:
37692
diff
changeset
|
518 elif action == 'download': |
ab04972a33ef
lfs: enable the final download count status message
Matt Harbison <matt_harbison@yahoo.com>
parents:
37692
diff
changeset
|
519 self.ui.status(_('lfs: downloaded %d files (%s)\n') |
ab04972a33ef
lfs: enable the final download count status message
Matt Harbison <matt_harbison@yahoo.com>
parents:
37692
diff
changeset
|
520 % (blobs, util.bytecount(processed))) |
35881
fa993c3c8462
lfs: emit a status message to indicate how many blobs were uploaded
Matt Harbison <matt_harbison@yahoo.com>
parents:
35753
diff
changeset
|
521 |
35098
66c5a8cf2868
lfs: import the Facebook git-lfs client extension
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff
changeset
|
522 def __del__(self): |
66c5a8cf2868
lfs: import the Facebook git-lfs client extension
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff
changeset
|
523 # copied from mercurial/httppeer.py |
66c5a8cf2868
lfs: import the Facebook git-lfs client extension
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff
changeset
|
524 urlopener = getattr(self, 'urlopener', None) |
66c5a8cf2868
lfs: import the Facebook git-lfs client extension
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff
changeset
|
525 if urlopener: |
66c5a8cf2868
lfs: import the Facebook git-lfs client extension
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff
changeset
|
526 for h in urlopener.handlers: |
66c5a8cf2868
lfs: import the Facebook git-lfs client extension
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff
changeset
|
527 h.close() |
66c5a8cf2868
lfs: import the Facebook git-lfs client extension
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff
changeset
|
528 getattr(h, "close_all", lambda : None)() |
66c5a8cf2868
lfs: import the Facebook git-lfs client extension
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff
changeset
|
529 |
66c5a8cf2868
lfs: import the Facebook git-lfs client extension
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff
changeset
|
530 class _dummyremote(object): |
66c5a8cf2868
lfs: import the Facebook git-lfs client extension
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff
changeset
|
531 """Dummy store storing blobs to temp directory.""" |
66c5a8cf2868
lfs: import the Facebook git-lfs client extension
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff
changeset
|
532 |
66c5a8cf2868
lfs: import the Facebook git-lfs client extension
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff
changeset
|
533 def __init__(self, repo, url): |
66c5a8cf2868
lfs: import the Facebook git-lfs client extension
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff
changeset
|
534 fullpath = repo.vfs.join('lfs', url.path) |
66c5a8cf2868
lfs: import the Facebook git-lfs client extension
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff
changeset
|
535 self.vfs = lfsvfs(fullpath) |
66c5a8cf2868
lfs: import the Facebook git-lfs client extension
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff
changeset
|
536 |
66c5a8cf2868
lfs: import the Facebook git-lfs client extension
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff
changeset
|
537 def writebatch(self, pointers, fromstore): |
35927
9b413478f261
lfs: deduplicate oids in the transfer
Matt Harbison <matt_harbison@yahoo.com>
parents:
35881
diff
changeset
|
538 for p in _deduplicate(pointers): |
35476
417e8e040102
lfs: verify lfs object content when transferring to and from the remote store
Matt Harbison <matt_harbison@yahoo.com>
parents:
35475
diff
changeset
|
539 content = fromstore.read(p.oid(), verify=True) |
35098
66c5a8cf2868
lfs: import the Facebook git-lfs client extension
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff
changeset
|
540 with self.vfs(p.oid(), 'wb', atomictemp=True) as fp: |
66c5a8cf2868
lfs: import the Facebook git-lfs client extension
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff
changeset
|
541 fp.write(content) |
66c5a8cf2868
lfs: import the Facebook git-lfs client extension
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff
changeset
|
542 |
66c5a8cf2868
lfs: import the Facebook git-lfs client extension
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff
changeset
|
543 def readbatch(self, pointers, tostore): |
35927
9b413478f261
lfs: deduplicate oids in the transfer
Matt Harbison <matt_harbison@yahoo.com>
parents:
35881
diff
changeset
|
544 for p in _deduplicate(pointers): |
35552
fd610befc37f
lfs: use the localstore download method to transfer from remote stores
Matt Harbison <matt_harbison@yahoo.com>
parents:
35551
diff
changeset
|
545 with self.vfs(p.oid(), 'rb') as fp: |
fd610befc37f
lfs: use the localstore download method to transfer from remote stores
Matt Harbison <matt_harbison@yahoo.com>
parents:
35551
diff
changeset
|
546 tostore.download(p.oid(), fp) |
35098
66c5a8cf2868
lfs: import the Facebook git-lfs client extension
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff
changeset
|
547 |
66c5a8cf2868
lfs: import the Facebook git-lfs client extension
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff
changeset
|
548 class _nullremote(object): |
66c5a8cf2868
lfs: import the Facebook git-lfs client extension
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff
changeset
|
549 """Null store storing blobs to /dev/null.""" |
66c5a8cf2868
lfs: import the Facebook git-lfs client extension
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff
changeset
|
550 |
66c5a8cf2868
lfs: import the Facebook git-lfs client extension
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff
changeset
|
551 def __init__(self, repo, url): |
66c5a8cf2868
lfs: import the Facebook git-lfs client extension
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff
changeset
|
552 pass |
66c5a8cf2868
lfs: import the Facebook git-lfs client extension
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff
changeset
|
553 |
66c5a8cf2868
lfs: import the Facebook git-lfs client extension
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff
changeset
|
554 def writebatch(self, pointers, fromstore): |
66c5a8cf2868
lfs: import the Facebook git-lfs client extension
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff
changeset
|
555 pass |
66c5a8cf2868
lfs: import the Facebook git-lfs client extension
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff
changeset
|
556 |
66c5a8cf2868
lfs: import the Facebook git-lfs client extension
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff
changeset
|
557 def readbatch(self, pointers, tostore): |
66c5a8cf2868
lfs: import the Facebook git-lfs client extension
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff
changeset
|
558 pass |
66c5a8cf2868
lfs: import the Facebook git-lfs client extension
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff
changeset
|
559 |
66c5a8cf2868
lfs: import the Facebook git-lfs client extension
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff
changeset
|
560 class _promptremote(object): |
66c5a8cf2868
lfs: import the Facebook git-lfs client extension
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff
changeset
|
561 """Prompt user to set lfs.url when accessed.""" |
66c5a8cf2868
lfs: import the Facebook git-lfs client extension
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff
changeset
|
562 |
66c5a8cf2868
lfs: import the Facebook git-lfs client extension
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff
changeset
|
563 def __init__(self, repo, url): |
66c5a8cf2868
lfs: import the Facebook git-lfs client extension
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff
changeset
|
564 pass |
66c5a8cf2868
lfs: import the Facebook git-lfs client extension
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff
changeset
|
565 |
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566 def writebatch(self, pointers, fromstore, ui=None): |
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567 self._prompt() |
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568 |
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569 def readbatch(self, pointers, tostore, ui=None): |
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570 self._prompt() |
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571 |
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572 def _prompt(self): |
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573 raise error.Abort(_('lfs.url needs to be configured')) |
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574 |
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575 _storemap = { |
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576 'https': _gitlfsremote, |
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577 'http': _gitlfsremote, |
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578 'file': _dummyremote, |
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579 'null': _nullremote, |
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580 None: _promptremote, |
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581 } |
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582 |
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583 def _deduplicate(pointers): |
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584 """Remove any duplicate oids that exist in the list""" |
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585 reduced = util.sortdict() |
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586 for p in pointers: |
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587 reduced[p.oid()] = p |
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588 return reduced.values() |
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589 |
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590 def _verify(oid, content): |
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591 realoid = node.hex(hashlib.sha256(content).digest()) |
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592 if realoid != oid: |
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593 raise LfsCorruptionError(_('detected corrupt lfs object: %s') % oid, |
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594 hint=_('run hg verify')) |
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595 |
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596 def remote(repo, remote=None): |
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597 """remotestore factory. return a store in _storemap depending on config |
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598 |
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599 If ``lfs.url`` is specified, use that remote endpoint. Otherwise, try to |
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600 infer the endpoint, based on the remote repository using the same path |
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601 adjustments as git. As an extension, 'http' is supported as well so that |
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602 ``hg serve`` works out of the box. |
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603 |
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604 https://github.com/git-lfs/git-lfs/blob/master/docs/api/server-discovery.md |
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605 """ |
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606 lfsurl = repo.ui.config('lfs', 'url') |
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607 url = util.url(lfsurl or '') |
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608 if lfsurl is None: |
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609 if remote: |
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610 path = remote |
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611 elif util.safehasattr(repo, '_subtoppath'): |
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612 # The pull command sets this during the optional update phase, which |
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613 # tells exactly where the pull originated, whether 'paths.default' |
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614 # or explicit. |
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615 path = repo._subtoppath |
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616 else: |
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617 # TODO: investigate 'paths.remote:lfsurl' style path customization, |
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618 # and fall back to inferring from 'paths.remote' if unspecified. |
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619 path = repo.ui.config('paths', 'default') or '' |
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620 |
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621 defaulturl = util.url(path) |
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622 |
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623 # TODO: support local paths as well. |
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624 # TODO: consider the ssh -> https transformation that git applies |
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625 if defaulturl.scheme in (b'http', b'https'): |
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626 if defaulturl.path and defaulturl.path[:-1] != b'/': |
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627 defaulturl.path += b'/' |
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628 defaulturl.path = (defaulturl.path or b'') + b'.git/info/lfs' |
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629 |
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630 url = util.url(bytes(defaulturl)) |
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631 repo.ui.note(_('lfs: assuming remote store: %s\n') % url) |
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632 |
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633 scheme = url.scheme |
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634 if scheme not in _storemap: |
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635 raise error.Abort(_('lfs: unknown url scheme: %s') % scheme) |
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636 return _storemap[scheme](repo, url) |
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637 |
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638 class LfsRemoteError(error.StorageError): |
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639 pass |
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640 |
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641 class LfsCorruptionError(error.Abort): |
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642 """Raised when a corrupt blob is detected, aborting an operation |
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643 |
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644 It exists to allow specialized handling on the server side.""" |