Mercurial > hg
annotate mercurial/httppeer.py @ 48598:a6f16ec07ed7
stream-clone: add a explicit test for format change during stream clone
They are different kind of requirements, the one which impact the data storage
and are relevant to the files being streamed and the one which does not. For
example some requirements are only relevant to the working copy, like sparse, or
dirstate-v2.
Since they are irrelevant to the content being streamed, they do not prevent the
receiving side to use streaming clone and mercurial skip adverting them over
the wire and, ideally, within the bundle.
In addition, this let the client decide to use whichever format it desire for
the part that does not affect the store itself. So the configuration related to
these format are used as normal when doing a streaming clone.
In practice, the feature was not really tested and is badly broken with bundle-2,
since the requirements are not filtered out from the stream bundle.
So we start with adding simple tests as a good base before the fix and adjust
the feature.
Differential Revision: https://phab.mercurial-scm.org/D12029
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Mon, 17 Jan 2022 18:51:47 +0100 |
parents | 04688c51f81f |
children | a0da5075bca3 |
rev | line source |
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1 # httppeer.py - HTTP repository proxy classes for mercurial |
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2 # |
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3 # Copyright 2005, 2006 Olivia Mackall <olivia@selenic.com> |
2859 | 4 # Copyright 2006 Vadim Gelfer <vadim.gelfer@gmail.com> |
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5 # |
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6 # This software may be used and distributed according to the terms of the |
10263 | 7 # GNU General Public License version 2 or any later version. |
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8 |
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9 from __future__ import absolute_import |
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10 |
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11 import errno |
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12 import io |
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13 import os |
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14 import socket |
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15 import struct |
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16 |
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17 from .i18n import _ |
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18 from .pycompat import getattr |
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19 from . import ( |
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20 bundle2, |
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21 error, |
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22 httpconnection, |
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23 pycompat, |
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24 statichttprepo, |
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25 url as urlmod, |
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26 util, |
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27 wireprotov1peer, |
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28 ) |
48526 | 29 from .utils import urlutil |
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30 |
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31 httplib = util.httplib |
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32 urlerr = util.urlerr |
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33 urlreq = util.urlreq |
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34 |
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35 |
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36 def encodevalueinheaders(value, header, limit): |
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37 """Encode a string value into multiple HTTP headers. |
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38 |
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39 ``value`` will be encoded into 1 or more HTTP headers with the names |
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40 ``header-<N>`` where ``<N>`` is an integer starting at 1. Each header |
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41 name + value will be at most ``limit`` bytes long. |
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42 |
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43 Returns an iterable of 2-tuples consisting of header names and |
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44 values as native strings. |
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45 """ |
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46 # HTTP Headers are ASCII. Python 3 requires them to be unicodes, |
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47 # not bytes. This function always takes bytes in as arguments. |
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48 fmt = pycompat.strurl(header) + r'-%s' |
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49 # Note: it is *NOT* a bug that the last bit here is a bytestring |
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50 # and not a unicode: we're just getting the encoded length anyway, |
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51 # and using an r-string to make it portable between Python 2 and 3 |
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52 # doesn't work because then the \r is a literal backslash-r |
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53 # instead of a carriage return. |
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54 valuelen = limit - len(fmt % '000') - len(b': \r\n') |
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55 result = [] |
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56 |
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57 n = 0 |
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58 for i in pycompat.xrange(0, len(value), valuelen): |
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59 n += 1 |
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60 result.append((fmt % str(n), pycompat.strurl(value[i : i + valuelen]))) |
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61 |
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62 return result |
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63 |
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64 |
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65 class _multifile(object): |
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66 def __init__(self, *fileobjs): |
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67 for f in fileobjs: |
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68 if not util.safehasattr(f, b'length'): |
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69 raise ValueError( |
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70 b'_multifile only supports file objects that ' |
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71 b'have a length but this one does not:', |
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72 type(f), |
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73 f, |
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74 ) |
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75 self._fileobjs = fileobjs |
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76 self._index = 0 |
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77 |
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78 @property |
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79 def length(self): |
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80 return sum(f.length for f in self._fileobjs) |
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81 |
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82 def read(self, amt=None): |
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83 if amt <= 0: |
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84 return b''.join(f.read() for f in self._fileobjs) |
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85 parts = [] |
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86 while amt and self._index < len(self._fileobjs): |
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87 parts.append(self._fileobjs[self._index].read(amt)) |
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88 got = len(parts[-1]) |
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89 if got < amt: |
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90 self._index += 1 |
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91 amt -= got |
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92 return b''.join(parts) |
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93 |
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94 def seek(self, offset, whence=os.SEEK_SET): |
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95 if whence != os.SEEK_SET: |
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96 raise NotImplementedError( |
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97 b'_multifile does not support anything other' |
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98 b' than os.SEEK_SET for whence on seek()' |
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99 ) |
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100 if offset != 0: |
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101 raise NotImplementedError( |
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102 b'_multifile only supports seeking to start, but that ' |
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103 b'could be fixed if you need it' |
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104 ) |
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105 for f in self._fileobjs: |
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106 f.seek(0) |
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107 self._index = 0 |
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108 |
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109 |
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110 def makev1commandrequest( |
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111 ui, requestbuilder, caps, capablefn, repobaseurl, cmd, args |
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112 ): |
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113 """Make an HTTP request to run a command for a version 1 client. |
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114 |
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115 ``caps`` is a set of known server capabilities. The value may be |
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116 None if capabilities are not yet known. |
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117 |
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118 ``capablefn`` is a function to evaluate a capability. |
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119 |
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120 ``cmd``, ``args``, and ``data`` define the command, its arguments, and |
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121 raw data to pass to it. |
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122 """ |
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123 if cmd == b'pushkey': |
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124 args[b'data'] = b'' |
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125 data = args.pop(b'data', None) |
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126 headers = args.pop(b'headers', {}) |
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127 |
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128 ui.debug(b"sending %s command\n" % cmd) |
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129 q = [(b'cmd', cmd)] |
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130 headersize = 0 |
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131 # Important: don't use self.capable() here or else you end up |
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132 # with infinite recursion when trying to look up capabilities |
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133 # for the first time. |
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134 postargsok = caps is not None and b'httppostargs' in caps |
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135 |
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136 # Send arguments via POST. |
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137 if postargsok and args: |
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138 strargs = urlreq.urlencode(sorted(args.items())) |
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139 if not data: |
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140 data = strargs |
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141 else: |
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142 if isinstance(data, bytes): |
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143 i = io.BytesIO(data) |
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144 i.length = len(data) |
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145 data = i |
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146 argsio = io.BytesIO(strargs) |
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147 argsio.length = len(strargs) |
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148 data = _multifile(argsio, data) |
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149 headers['X-HgArgs-Post'] = len(strargs) |
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150 elif args: |
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151 # Calling self.capable() can infinite loop if we are calling |
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152 # "capabilities". But that command should never accept wire |
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153 # protocol arguments. So this should never happen. |
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154 assert cmd != b'capabilities' |
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155 httpheader = capablefn(b'httpheader') |
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156 if httpheader: |
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157 headersize = int(httpheader.split(b',', 1)[0]) |
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158 |
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159 # Send arguments via HTTP headers. |
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160 if headersize > 0: |
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161 # The headers can typically carry more data than the URL. |
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162 encoded_args = urlreq.urlencode(sorted(args.items())) |
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163 for header, value in encodevalueinheaders( |
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164 encoded_args, b'X-HgArg', headersize |
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165 ): |
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166 headers[header] = value |
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167 # Send arguments via query string (Mercurial <1.9). |
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168 else: |
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169 q += sorted(args.items()) |
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170 |
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171 qs = b'?%s' % urlreq.urlencode(q) |
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172 cu = b"%s%s" % (repobaseurl, qs) |
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173 size = 0 |
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174 if util.safehasattr(data, b'length'): |
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175 size = data.length |
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176 elif data is not None: |
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177 size = len(data) |
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178 if data is not None and 'Content-Type' not in headers: |
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179 headers['Content-Type'] = 'application/mercurial-0.1' |
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180 |
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181 # Tell the server we accept application/mercurial-0.2 and multiple |
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182 # compression formats if the server is capable of emitting those |
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183 # payloads. |
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184 # Note: Keep this set empty by default, as client advertisement of |
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185 # protocol parameters should only occur after the handshake. |
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186 protoparams = set() |
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187 |
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188 mediatypes = set() |
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189 if caps is not None: |
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190 mt = capablefn(b'httpmediatype') |
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191 if mt: |
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192 protoparams.add(b'0.1') |
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193 mediatypes = set(mt.split(b',')) |
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194 |
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195 protoparams.add(b'partial-pull') |
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196 |
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197 if b'0.2tx' in mediatypes: |
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198 protoparams.add(b'0.2') |
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199 |
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200 if b'0.2tx' in mediatypes and capablefn(b'compression'): |
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201 # We /could/ compare supported compression formats and prune |
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202 # non-mutually supported or error if nothing is mutually supported. |
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203 # For now, send the full list to the server and have it error. |
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204 comps = [ |
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205 e.wireprotosupport().name |
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206 for e in util.compengines.supportedwireengines(util.CLIENTROLE) |
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207 ] |
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208 protoparams.add(b'comp=%s' % b','.join(comps)) |
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209 |
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210 if protoparams: |
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211 protoheaders = encodevalueinheaders( |
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212 b' '.join(sorted(protoparams)), b'X-HgProto', headersize or 1024 |
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213 ) |
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214 for header, value in protoheaders: |
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215 headers[header] = value |
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216 |
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217 varyheaders = [] |
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218 for header in headers: |
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219 if header.lower().startswith('x-hg'): |
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220 varyheaders.append(header) |
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221 |
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222 if varyheaders: |
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223 headers['Vary'] = ','.join(sorted(varyheaders)) |
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224 |
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225 req = requestbuilder(pycompat.strurl(cu), data, headers) |
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226 |
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227 if data is not None: |
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228 ui.debug(b"sending %d bytes\n" % size) |
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229 req.add_unredirected_header('Content-Length', '%d' % size) |
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230 |
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231 return req, cu, qs |
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232 |
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233 |
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234 def _reqdata(req): |
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235 """Get request data, if any. If no data, returns None.""" |
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236 if pycompat.ispy3: |
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237 return req.data |
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238 if not req.has_data(): |
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239 return None |
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240 return req.get_data() |
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241 |
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242 |
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243 def sendrequest(ui, opener, req): |
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244 """Send a prepared HTTP request. |
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245 |
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246 Returns the response object. |
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247 """ |
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248 dbg = ui.debug |
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249 if ui.debugflag and ui.configbool(b'devel', b'debug.peer-request'): |
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250 line = b'devel-peer-request: %s\n' |
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251 dbg( |
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252 line |
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253 % b'%s %s' |
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254 % ( |
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255 pycompat.bytesurl(req.get_method()), |
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256 pycompat.bytesurl(req.get_full_url()), |
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257 ) |
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258 ) |
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259 hgargssize = None |
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260 |
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261 for header, value in sorted(req.header_items()): |
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262 header = pycompat.bytesurl(header) |
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263 value = pycompat.bytesurl(value) |
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264 if header.startswith(b'X-hgarg-'): |
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265 if hgargssize is None: |
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266 hgargssize = 0 |
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267 hgargssize += len(value) |
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268 else: |
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269 dbg(line % b' %s %s' % (header, value)) |
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270 |
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271 if hgargssize is not None: |
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272 dbg( |
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273 line |
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274 % b' %d bytes of commands arguments in headers' |
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275 % hgargssize |
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276 ) |
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277 data = _reqdata(req) |
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278 if data is not None: |
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279 length = getattr(data, 'length', None) |
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280 if length is None: |
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281 length = len(data) |
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282 dbg(line % b' %d bytes of data' % length) |
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283 |
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284 start = util.timer() |
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285 |
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286 res = None |
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287 try: |
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288 res = opener.open(req) |
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289 except urlerr.httperror as inst: |
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290 if inst.code == 401: |
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291 raise error.Abort(_(b'authorization failed')) |
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292 raise |
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293 except httplib.HTTPException as inst: |
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294 ui.debug( |
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295 b'http error requesting %s\n' |
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296 % urlutil.hidepassword(req.get_full_url()) |
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297 ) |
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298 ui.traceback() |
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299 raise IOError(None, inst) |
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300 finally: |
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301 if ui.debugflag and ui.configbool(b'devel', b'debug.peer-request'): |
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302 code = res.code if res else -1 |
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303 dbg( |
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304 line |
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305 % b' finished in %.4f seconds (%d)' |
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306 % (util.timer() - start, code) |
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307 ) |
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308 |
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309 # Insert error handlers for common I/O failures. |
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310 urlmod.wrapresponse(res) |
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311 |
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312 return res |
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313 |
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314 |
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315 class RedirectedRepoError(error.RepoError): |
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316 def __init__(self, msg, respurl): |
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317 super(RedirectedRepoError, self).__init__(msg) |
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318 self.respurl = respurl |
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319 |
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320 |
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322 # record the url we got redirected to |
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323 redirected = False |
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324 respurl = pycompat.bytesurl(resp.geturl()) |
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325 if respurl.endswith(qs): |
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326 respurl = respurl[: -len(qs)] |
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327 qsdropped = False |
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328 else: |
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329 qsdropped = True |
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330 |
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331 if baseurl.rstrip(b'/') != respurl.rstrip(b'/'): |
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332 redirected = True |
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333 if not ui.quiet: |
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334 ui.warn(_(b'real URL is %s\n') % respurl) |
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335 |
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336 try: |
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337 proto = pycompat.bytesurl(resp.getheader('content-type', '')) |
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338 except AttributeError: |
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339 proto = pycompat.bytesurl(resp.headers.get('content-type', '')) |
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340 |
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341 safeurl = urlutil.hidepassword(baseurl) |
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342 if proto.startswith(b'application/hg-error'): |
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343 raise error.OutOfBandError(resp.read()) |
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344 |
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345 # Pre 1.0 versions of Mercurial used text/plain and |
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346 # application/hg-changegroup. We don't support such old servers. |
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347 if not proto.startswith(b'application/mercurial-'): |
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348 ui.debug(b"requested URL: '%s'\n" % urlutil.hidepassword(requrl)) |
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349 msg = _( |
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350 b"'%s' does not appear to be an hg repository:\n" |
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351 b"---%%<--- (%s)\n%s\n---%%<---\n" |
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352 ) % (safeurl, proto or b'no content-type', resp.read(1024)) |
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353 |
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354 # Some servers may strip the query string from the redirect. We |
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355 # raise a special error type so callers can react to this specially. |
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356 if redirected and qsdropped: |
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357 raise RedirectedRepoError(msg, respurl) |
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358 else: |
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359 raise error.RepoError(msg) |
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360 |
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361 try: |
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362 subtype = proto.split(b'-', 1)[1] |
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363 |
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364 version_info = tuple([int(n) for n in subtype.split(b'.')]) |
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365 except ValueError: |
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366 raise error.RepoError( |
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367 _(b"'%s' sent a broken Content-Type header (%s)") % (safeurl, proto) |
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368 ) |
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369 |
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370 # TODO consider switching to a decompression reader that uses |
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371 # generators. |
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372 if version_info == (0, 1): |
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373 if compressible: |
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374 resp = util.compengines[b'zlib'].decompressorreader(resp) |
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375 |
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376 elif version_info == (0, 2): |
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377 # application/mercurial-0.2 always identifies the compression |
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378 # engine in the payload header. |
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379 elen = struct.unpack(b'B', util.readexactly(resp, 1))[0] |
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380 ename = util.readexactly(resp, elen) |
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381 engine = util.compengines.forwiretype(ename) |
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382 |
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383 resp = engine.decompressorreader(resp) |
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384 else: |
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385 raise error.RepoError( |
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386 _(b"'%s' uses newer protocol %s") % (safeurl, subtype) |
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387 ) |
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388 |
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389 return respurl, proto, resp |
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390 |
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391 |
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392 class httppeer(wireprotov1peer.wirepeer): |
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393 def __init__(self, ui, path, url, opener, requestbuilder, caps): |
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394 self.ui = ui |
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395 self._path = path |
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396 self._url = url |
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397 self._caps = caps |
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398 self.limitedarguments = caps is not None and b'httppostargs' not in caps |
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399 self._urlopener = opener |
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400 self._requestbuilder = requestbuilder |
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401 |
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402 def __del__(self): |
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403 for h in self._urlopener.handlers: |
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404 h.close() |
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405 getattr(h, "close_all", lambda: None)() |
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406 |
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407 # Begin of ipeerconnection interface. |
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408 |
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409 def url(self): |
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410 return self._path |
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411 |
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412 def local(self): |
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413 return None |
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414 |
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415 def peer(self): |
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416 return self |
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417 |
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418 def canpush(self): |
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419 return True |
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420 |
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421 def close(self): |
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422 try: |
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423 reqs, sent, recv = ( |
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424 self._urlopener.requestscount, |
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425 self._urlopener.sentbytescount, |
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426 self._urlopener.receivedbytescount, |
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427 ) |
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428 except AttributeError: |
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429 return |
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430 self.ui.note( |
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431 _( |
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432 b'(sent %d HTTP requests and %d bytes; ' |
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433 b'received %d bytes in responses)\n' |
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434 ) |
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435 % (reqs, sent, recv) |
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436 ) |
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437 |
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438 # End of ipeerconnection interface. |
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439 |
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440 # Begin of ipeercommands interface. |
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441 |
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442 def capabilities(self): |
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443 return self._caps |
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444 |
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445 # End of ipeercommands interface. |
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446 |
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447 def _callstream(self, cmd, _compressible=False, **args): |
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448 args = pycompat.byteskwargs(args) |
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449 |
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450 req, cu, qs = makev1commandrequest( |
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451 self.ui, |
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452 self._requestbuilder, |
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453 self._caps, |
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454 self.capable, |
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455 self._url, |
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456 cmd, |
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457 args, |
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458 ) |
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459 |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
37549
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changeset
|
460 resp = sendrequest(self.ui, self._urlopener, req) |
32002
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httppeer: wrap HTTPResponse.read() globally
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
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changeset
|
461 |
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parents:
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changeset
|
462 self._url, ct, resp = parsev1commandresponse( |
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parents:
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|
463 self.ui, self._url, cu, qs, resp, _compressible |
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parents:
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|
464 ) |
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parents:
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465 |
752 | 466 return resp |
60 | 467 |
11589
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protocol: clean up call-like functions in http and ssh clients
Matt Mackall <mpm@selenic.com>
parents:
11588
diff
changeset
|
468 def _call(self, cmd, **args): |
e8d22fe2ddab
protocol: clean up call-like functions in http and ssh clients
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parents:
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diff
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|
469 fp = self._callstream(cmd, **args) |
2435
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parents:
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diff
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|
470 try: |
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parents:
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diff
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|
471 return fp.read() |
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parents:
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diff
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|
472 finally: |
ff2bac730b99
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parents:
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|
473 # if using keepalive, allow connection to be reused |
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parents:
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changeset
|
474 fp.close() |
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parents:
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diff
changeset
|
475 |
11592
26e0782b8380
protocol: unify client unbundle support
Matt Mackall <mpm@selenic.com>
parents:
11591
diff
changeset
|
476 def _callpush(self, cmd, cg, **args): |
2465
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parents:
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diff
changeset
|
477 # have to stream bundle to a temp file because we do not have |
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|
478 # http 1.1 chunked transfer. |
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|
479 |
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parents:
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|
480 types = self.capable(b'unbundle') |
3703
e674cae8efee
fix push over HTTP to older servers
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
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diff
changeset
|
481 try: |
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parents:
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diff
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|
482 types = types.split(b',') |
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fix push over HTTP to older servers
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parents:
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diff
changeset
|
483 except AttributeError: |
14060
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bundle: more comments about the different header types, remove useless if
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parents:
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diff
changeset
|
484 # servers older than d1b16a746db6 will send 'unbundle' as a |
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parents:
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diff
changeset
|
485 # boolean capability. They only support headerless/uncompressed |
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parents:
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|
486 # bundles. |
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|
487 types = [b""] |
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parents:
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diff
changeset
|
488 for x in types: |
28666
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bundle: move writebundle() from changegroup.py to bundle2.py (API)
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parents:
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diff
changeset
|
489 if x in bundle2.bundletypes: |
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parents:
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diff
changeset
|
490 type = x |
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parents:
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diff
changeset
|
491 break |
3613
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Client support for hgweb unbundle with versions.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
3609
diff
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|
492 |
28666
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bundle: move writebundle() from changegroup.py to bundle2.py (API)
Martin von Zweigbergk <martinvonz@google.com>
parents:
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diff
changeset
|
493 tempname = bundle2.writebundle(self.ui, cg, None, type) |
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parents:
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|
494 fp = httpconnection.httpsendfile(self.ui, tempname, b"rb") |
43506
9f70512ae2cf
cleanup: remove pointless r-prefixes on single-quoted strings
Augie Fackler <augie@google.com>
parents:
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diff
changeset
|
495 headers = {'Content-Type': 'application/mercurial-0.1'} |
11592
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Matt Mackall <mpm@selenic.com>
parents:
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diff
changeset
|
496 |
2465
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diff
changeset
|
497 try: |
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parents:
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diff
changeset
|
498 r = self._call(cmd, data=fp, headers=headers, **args) |
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|
499 vals = r.split(b'\n', 1) |
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parents:
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diff
changeset
|
500 if len(vals) < 2: |
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parents:
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|
501 raise error.ResponseError(_(b"unexpected response:"), r) |
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parents:
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diff
changeset
|
502 return vals |
36430
efebfa9b4cab
httppeer: explicitly catch urlerr.httperror and re-raise
Augie Fackler <augie@google.com>
parents:
36426
diff
changeset
|
503 except urlerr.httperror: |
efebfa9b4cab
httppeer: explicitly catch urlerr.httperror and re-raise
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parents:
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diff
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|
504 # Catch and re-raise these so we don't try and treat them |
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httppeer: explicitly catch urlerr.httperror and re-raise
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parents:
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diff
changeset
|
505 # like generic socket errors. They lack any values in |
efebfa9b4cab
httppeer: explicitly catch urlerr.httperror and re-raise
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parents:
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diff
changeset
|
506 # .args on Python 3 which breaks our socket.error block. |
efebfa9b4cab
httppeer: explicitly catch urlerr.httperror and re-raise
Augie Fackler <augie@google.com>
parents:
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diff
changeset
|
507 raise |
25660
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global: mass rewrite to use modern exception syntax
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parents:
25500
diff
changeset
|
508 except socket.error as err: |
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parents:
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changeset
|
509 if err.args[0] in (errno.ECONNRESET, errno.EPIPE): |
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parents:
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changeset
|
510 raise error.Abort(_(b'push failed: %s') % err.args[1]) |
26587
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error: get Abort from 'error' instead of 'util'
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25954
diff
changeset
|
511 raise error.Abort(err.args[1]) |
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parents:
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diff
changeset
|
512 finally: |
c91118f425d0
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parents:
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diff
changeset
|
513 fp.close() |
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|
514 os.unlink(tempname) |
2439
e8c4f3d3df8c
extend network protocol to stop clients from locking servers
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2435
diff
changeset
|
515 |
21074
f8a0d82b0463
httppeer: support for _calltwowaystream
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
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diff
changeset
|
516 def _calltwowaystream(self, cmd, fp, **args): |
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httppeer: support for _calltwowaystream
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20905
diff
changeset
|
517 filename = None |
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httppeer: support for _calltwowaystream
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parents:
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diff
changeset
|
518 try: |
f8a0d82b0463
httppeer: support for _calltwowaystream
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parents:
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diff
changeset
|
519 # dump bundle to disk |
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parents:
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diff
changeset
|
520 fd, filename = pycompat.mkstemp(prefix=b"hg-bundle-", suffix=b".hg") |
43503
313e3a279828
cleanup: remove pointless r-prefixes on double-quoted strings
Augie Fackler <augie@google.com>
parents:
43117
diff
changeset
|
521 with os.fdopen(fd, "wb") as fh: |
21074
f8a0d82b0463
httppeer: support for _calltwowaystream
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parents:
20905
diff
changeset
|
522 d = fp.read(4096) |
42852
58f73e9ccfff
httppeer: use context manager when writing temporary bundle to send
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parents:
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diff
changeset
|
523 while d: |
58f73e9ccfff
httppeer: use context manager when writing temporary bundle to send
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parents:
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diff
changeset
|
524 fh.write(d) |
58f73e9ccfff
httppeer: use context manager when writing temporary bundle to send
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parents:
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diff
changeset
|
525 d = fp.read(4096) |
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parents:
20905
diff
changeset
|
526 # start http push |
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changeset
|
527 with httpconnection.httpsendfile(self.ui, filename, b"rb") as fp_: |
43506
9f70512ae2cf
cleanup: remove pointless r-prefixes on single-quoted strings
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parents:
43503
diff
changeset
|
528 headers = {'Content-Type': 'application/mercurial-0.1'} |
42853
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parents:
42852
diff
changeset
|
529 return self._callstream(cmd, data=fp_, headers=headers, **args) |
21074
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httppeer: support for _calltwowaystream
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parents:
20905
diff
changeset
|
530 finally: |
42852
58f73e9ccfff
httppeer: use context manager when writing temporary bundle to send
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parents:
42814
diff
changeset
|
531 if filename is not None: |
21074
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parents:
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diff
changeset
|
532 os.unlink(filename) |
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httppeer: support for _calltwowaystream
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parents:
20905
diff
changeset
|
533 |
20905
167047ba3cfa
wireproto: drop the _decompress method in favor a new call type
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
18742
diff
changeset
|
534 def _callcompressable(self, cmd, **args): |
30464
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httppeer: do decompression inside _callstream
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30241
diff
changeset
|
535 return self._callstream(cmd, _compressible=True, **args) |
11370 | 536 |
21188
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httppeer: reintroduce _abort that accidentally was removed in 167047ba3cfa
Mads Kiilerich <madski@unity3d.com>
parents:
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diff
changeset
|
537 def _abort(self, exception): |
d36440d84328
httppeer: reintroduce _abort that accidentally was removed in 167047ba3cfa
Mads Kiilerich <madski@unity3d.com>
parents:
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diff
changeset
|
538 raise exception |
d36440d84328
httppeer: reintroduce _abort that accidentally was removed in 167047ba3cfa
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parents:
21074
diff
changeset
|
539 |
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parents:
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diff
changeset
|
540 |
37651
950294e28136
httppeer: implement command executor for version 2 peer
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37644
diff
changeset
|
541 class queuedcommandfuture(pycompat.futures.Future): |
950294e28136
httppeer: implement command executor for version 2 peer
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parents:
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changeset
|
542 """Wraps result() on command futures to trigger submission on call.""" |
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httppeer: implement command executor for version 2 peer
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parents:
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diff
changeset
|
543 |
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diff
changeset
|
544 def result(self, timeout=None): |
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httppeer: implement command executor for version 2 peer
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parents:
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diff
changeset
|
545 if self.done(): |
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parents:
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diff
changeset
|
546 return pycompat.futures.Future.result(self, timeout) |
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httppeer: implement command executor for version 2 peer
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parents:
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diff
changeset
|
547 |
950294e28136
httppeer: implement command executor for version 2 peer
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parents:
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diff
changeset
|
548 self._peerexecutor.sendcommands() |
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httppeer: implement command executor for version 2 peer
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parents:
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diff
changeset
|
549 |
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diff
changeset
|
550 # sendcommands() will restore the original __class__ and self.result |
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|
551 # will resolve to Future.result. |
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|
552 return self.result(timeout) |
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diff
changeset
|
553 |
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diff
changeset
|
554 |
37552
8b8a845c85fc
httppeer: perform capabilities request in makepeer()
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parents:
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diff
changeset
|
555 def performhandshake(ui, url, opener, requestbuilder): |
8b8a845c85fc
httppeer: perform capabilities request in makepeer()
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parents:
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diff
changeset
|
556 # The handshake is a request to the capabilities command. |
8b8a845c85fc
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diff
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|
557 |
8b8a845c85fc
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changeset
|
558 caps = None |
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|
559 |
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diff
changeset
|
560 def capable(x): |
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|
561 raise error.ProgrammingError(b'should not be called') |
37552
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parents:
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diff
changeset
|
562 |
37558
8a73132214a3
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parents:
37556
diff
changeset
|
563 args = {} |
8a73132214a3
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parents:
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|
564 |
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565 req, requrl, qs = makev1commandrequest( |
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|
566 ui, requestbuilder, caps, capable, url, b'capabilities', args |
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|
567 ) |
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changeset
|
568 resp = sendrequest(ui, opener, req) |
8b8a845c85fc
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parents:
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diff
changeset
|
569 |
37832
6169d95dce3b
httppeer: detect redirect to URL without query string (issue5860)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37810
diff
changeset
|
570 # The server may redirect us to the repo root, stripping the |
6169d95dce3b
httppeer: detect redirect to URL without query string (issue5860)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
571 # ?cmd=capabilities query string from the URL. The server would likely |
6169d95dce3b
httppeer: detect redirect to URL without query string (issue5860)
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parents:
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changeset
|
572 # return HTML in this case and ``parsev1commandresponse()`` would raise. |
6169d95dce3b
httppeer: detect redirect to URL without query string (issue5860)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
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573 # We catch this special case and re-issue the capabilities request against |
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574 # the new URL. |
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575 # |
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576 # We should ideally not do this, as a redirect that drops the query |
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577 # string from the URL is arguably a server bug. (Garbage in, garbage out). |
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578 # However, Mercurial clients for several years appeared to handle this |
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579 # issue without behavior degradation. And according to issue 5860, it may |
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580 # be a longstanding bug in some server implementations. So we allow a |
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581 # redirect that drops the query string to "just work." |
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582 try: |
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583 respurl, ct, resp = parsev1commandresponse( |
48526 | 584 ui, url, requrl, qs, resp, compressible=False |
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585 ) |
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586 except RedirectedRepoError as e: |
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587 req, requrl, qs = makev1commandrequest( |
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588 ui, requestbuilder, caps, capable, e.respurl, b'capabilities', args |
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589 ) |
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590 resp = sendrequest(ui, opener, req) |
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591 respurl, ct, resp = parsev1commandresponse( |
48526 | 592 ui, url, requrl, qs, resp, compressible=False |
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593 ) |
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594 |
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595 try: |
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596 rawdata = resp.read() |
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597 finally: |
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598 resp.close() |
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599 |
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600 if not ct.startswith(b'application/mercurial-'): |
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601 raise error.ProgrammingError(b'unexpected content-type: %s' % ct) |
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602 |
48526 | 603 info = {b'v1capabilities': set(rawdata.split())} |
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604 |
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605 return respurl, info |
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606 |
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607 |
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608 def makepeer(ui, path, opener=None, requestbuilder=urlreq.request): |
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609 """Construct an appropriate HTTP peer instance. |
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610 |
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611 ``opener`` is an ``url.opener`` that should be used to establish |
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612 connections, perform HTTP requests. |
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613 |
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614 ``requestbuilder`` is the type used for constructing HTTP requests. |
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615 It exists as an argument so extensions can override the default. |
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616 """ |
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617 u = urlutil.url(path) |
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618 if u.query or u.fragment: |
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619 raise error.Abort( |
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620 _(b'unsupported URL component: "%s"') % (u.query or u.fragment) |
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621 ) |
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622 |
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623 # urllib cannot handle URLs with embedded user or passwd. |
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624 url, authinfo = u.authinfo() |
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625 ui.debug(b'using %s\n' % url) |
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626 |
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627 opener = opener or urlmod.opener(ui, authinfo) |
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628 |
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629 respurl, info = performhandshake(ui, url, opener, requestbuilder) |
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630 |
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631 return httppeer( |
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632 ui, path, respurl, opener, requestbuilder, info[b'v1capabilities'] |
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633 ) |
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634 |
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635 |
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636 def instance(ui, path, create, intents=None, createopts=None): |
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637 if create: |
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638 raise error.Abort(_(b'cannot create new http repository')) |
7211 | 639 try: |
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640 if path.startswith(b'https:') and not urlmod.has_https: |
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641 raise error.Abort( |
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642 _(b'Python support for SSL and HTTPS is not installed') |
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643 ) |
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644 |
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645 inst = makepeer(ui, path) |
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646 |
7211 | 647 return inst |
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648 except error.RepoError as httpexception: |
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649 try: |
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650 r = statichttprepo.instance(ui, b"static-" + path, create) |
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651 ui.note(_(b'(falling back to static-http)\n')) |
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652 return r |
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653 except error.RepoError: |
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654 raise httpexception # use the original http RepoError instead |