Mercurial > hg
annotate hgext/largefiles/proto.py @ 42388:04eb3c5607af
contrib: fix import-checker to operate on str instead of bytes
I believe this is fallout from other Python 3 cleanups, and our code
linting tools are now leaning towards operating on str and not
bytes. I don't feel strongly, so I've just restored this tool to
working on Python 3.
Differential Revision: https://phab.mercurial-scm.org/D6453
author | Augie Fackler <augie@google.com> |
---|---|
date | Wed, 29 May 2019 09:55:35 -0400 |
parents | 0a7f582f6f1f |
children | 2372284d9457 |
rev | line source |
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15168 | 1 # Copyright 2011 Fog Creek Software |
2 # | |
3 # This software may be used and distributed according to the terms of the | |
4 # GNU General Public License version 2 or any later version. | |
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5 from __future__ import absolute_import |
15168 | 6 |
7 import os | |
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8 import re |
15168 | 9 |
10 from mercurial.i18n import _ | |
11 | |
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12 from mercurial import ( |
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13 error, |
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14 exthelper, |
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15 httppeer, |
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16 util, |
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17 wireprototypes, |
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18 wireprotov1peer, |
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19 wireprotov1server, |
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20 ) |
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21 |
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22 from . import ( |
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23 lfutil, |
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24 ) |
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25 |
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26 urlerr = util.urlerr |
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27 urlreq = util.urlreq |
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28 |
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29 LARGEFILES_REQUIRED_MSG = ('\nThis repository uses the largefiles extension.' |
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30 '\n\nPlease enable it in your Mercurial config ' |
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31 'file.\n') |
15168 | 32 |
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33 eh = exthelper.exthelper() |
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34 |
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35 # these will all be replaced by largefiles.uisetup |
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36 ssholdcallstream = None |
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37 httpoldcallstream = None |
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38 |
15168 | 39 def putlfile(repo, proto, sha): |
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40 '''Server command for putting a largefile into a repository's local store |
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41 and into the user cache.''' |
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42 with proto.mayberedirectstdio() as output: |
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43 path = lfutil.storepath(repo, sha) |
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44 util.makedirs(os.path.dirname(path)) |
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45 tmpfp = util.atomictempfile(path, createmode=repo.store.createmode) |
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46 |
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47 try: |
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48 for p in proto.getpayload(): |
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49 tmpfp.write(p) |
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50 tmpfp._fp.seek(0) |
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51 if sha != lfutil.hexsha1(tmpfp._fp): |
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52 raise IOError(0, _('largefile contents do not match hash')) |
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53 tmpfp.close() |
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54 lfutil.linktousercache(repo, sha) |
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55 except IOError as e: |
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56 repo.ui.warn(_('largefiles: failed to put %s into store: %s\n') % |
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57 (sha, e.strerror)) |
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58 return wireprototypes.pushres( |
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59 1, output.getvalue() if output else '') |
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60 finally: |
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61 tmpfp.discard() |
15168 | 62 |
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63 return wireprototypes.pushres(0, output.getvalue() if output else '') |
15168 | 64 |
65 def getlfile(repo, proto, sha): | |
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66 '''Server command for retrieving a largefile from the repository-local |
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67 cache or user cache.''' |
15168 | 68 filename = lfutil.findfile(repo, sha) |
69 if not filename: | |
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70 raise error.Abort(_('requested largefile %s not present in cache') |
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71 % sha) |
15168 | 72 f = open(filename, 'rb') |
73 length = os.fstat(f.fileno())[6] | |
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74 |
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75 # Since we can't set an HTTP content-length header here, and |
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76 # Mercurial core provides no way to give the length of a streamres |
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77 # (and reading the entire file into RAM would be ill-advised), we |
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78 # just send the length on the first line of the response, like the |
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79 # ssh proto does for string responses. |
15168 | 80 def generator(): |
81 yield '%d\n' % length | |
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82 for chunk in util.filechunkiter(f): |
15168 | 83 yield chunk |
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84 return wireprototypes.streamreslegacy(gen=generator()) |
15168 | 85 |
86 def statlfile(repo, proto, sha): | |
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87 '''Server command for checking if a largefile is present - returns '2\n' if |
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88 the largefile is missing, '0\n' if it seems to be in good condition. |
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89 |
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90 The value 1 is reserved for mismatched checksum, but that is too expensive |
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91 to be verified on every stat and must be caught be running 'hg verify' |
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92 server side.''' |
15168 | 93 filename = lfutil.findfile(repo, sha) |
94 if not filename: | |
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95 return wireprototypes.bytesresponse('2\n') |
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96 return wireprototypes.bytesresponse('0\n') |
15168 | 97 |
98 def wirereposetup(ui, repo): | |
99 class lfileswirerepository(repo.__class__): | |
100 def putlfile(self, sha, fd): | |
101 # unfortunately, httprepository._callpush tries to convert its | |
102 # input file-like into a bundle before sending it, so we can't use | |
103 # it ... | |
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104 if issubclass(self.__class__, httppeer.httppeer): |
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105 res = self._call('putlfile', data=fd, sha=sha, |
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106 headers={r'content-type': r'application/mercurial-0.1'}) |
15168 | 107 try: |
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108 d, output = res.split('\n', 1) |
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109 for l in output.splitlines(True): |
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110 self.ui.warn(_('remote: '), l) # assume l ends with \n |
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111 return int(d) |
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112 except ValueError: |
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113 self.ui.warn(_('unexpected putlfile response: %r\n') % res) |
15168 | 114 return 1 |
115 # ... but we can't use sshrepository._call because the data= | |
116 # argument won't get sent, and _callpush does exactly what we want | |
117 # in this case: send the data straight through | |
118 else: | |
119 try: | |
120 ret, output = self._callpush("putlfile", fd, sha=sha) | |
121 if ret == "": | |
122 raise error.ResponseError(_('putlfile failed:'), | |
123 output) | |
124 return int(ret) | |
125 except IOError: | |
126 return 1 | |
127 except ValueError: | |
128 raise error.ResponseError( | |
129 _('putlfile failed (unexpected response):'), ret) | |
130 | |
131 def getlfile(self, sha): | |
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132 """returns an iterable with the chunks of the file with sha sha""" |
15168 | 133 stream = self._callstream("getlfile", sha=sha) |
134 length = stream.readline() | |
135 try: | |
136 length = int(length) | |
137 except ValueError: | |
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138 self._abort(error.ResponseError(_("unexpected response:"), |
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139 length)) |
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140 |
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141 # SSH streams will block if reading more than length |
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142 for chunk in util.filechunkiter(stream, limit=length): |
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143 yield chunk |
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144 # HTTP streams must hit the end to process the last empty |
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145 # chunk of Chunked-Encoding so the connection can be reused. |
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146 if issubclass(self.__class__, httppeer.httppeer): |
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147 chunk = stream.read(1) |
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148 if chunk: |
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149 self._abort(error.ResponseError(_("unexpected response:"), |
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150 chunk)) |
15168 | 151 |
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152 @wireprotov1peer.batchable |
15168 | 153 def statlfile(self, sha): |
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154 f = wireprotov1peer.future() |
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Na'Tosha Bard <natosha@unity3d.com>
parents:
16594
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changeset
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155 result = {'sha': sha} |
9e1616307c4c
largefiles: batch statlfile requests when pushing a largefiles repo (issue3386)
Na'Tosha Bard <natosha@unity3d.com>
parents:
16594
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changeset
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156 yield result, f |
15168 | 157 try: |
17127
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largefiles: batch statlfile requests when pushing a largefiles repo (issue3386)
Na'Tosha Bard <natosha@unity3d.com>
parents:
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158 yield int(f.value) |
28883
032c4c2f802a
pycompat: switch to util.urlreq/util.urlerr for py3 compat
timeless <timeless@mozdev.org>
parents:
28576
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159 except (ValueError, urlerr.httperror): |
15252
6e809bb4f969
largefiles: improve comments, internal docstrings
Greg Ward <greg@gerg.ca>
parents:
15224
diff
changeset
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160 # If the server returns anything but an integer followed by a |
15168 | 161 # newline, newline, it's not speaking our language; if we get |
162 # an HTTP error, we can't be sure the largefile is present; | |
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largefiles: improve comments, internal docstrings
Greg Ward <greg@gerg.ca>
parents:
15224
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changeset
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163 # either way, consider it missing. |
17127
9e1616307c4c
largefiles: batch statlfile requests when pushing a largefiles repo (issue3386)
Na'Tosha Bard <natosha@unity3d.com>
parents:
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changeset
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164 yield 2 |
15168 | 165 |
166 repo.__class__ = lfileswirerepository | |
167 | |
168 # advertise the largefiles=serve capability | |
41062
0a7f582f6f1f
largefiles: port wrapped functions to exthelper
Matt Harbison <matt_harbison@yahoo.com>
parents:
37614
diff
changeset
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169 @eh.wrapfunction(wireprotov1server, '_capabilities') |
35507
95a9be56c3bb
largefiles: modernize how capabilities are added to the wire protocol
Matt Harbison <matt_harbison@yahoo.com>
parents:
35348
diff
changeset
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170 def _capabilities(orig, repo, proto): |
95a9be56c3bb
largefiles: modernize how capabilities are added to the wire protocol
Matt Harbison <matt_harbison@yahoo.com>
parents:
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171 '''announce largefile server capability''' |
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largefiles: modernize how capabilities are added to the wire protocol
Matt Harbison <matt_harbison@yahoo.com>
parents:
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172 caps = orig(repo, proto) |
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largefiles: modernize how capabilities are added to the wire protocol
Matt Harbison <matt_harbison@yahoo.com>
parents:
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173 caps.append('largefiles=serve') |
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largefiles: modernize how capabilities are added to the wire protocol
Matt Harbison <matt_harbison@yahoo.com>
parents:
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174 return caps |
15168 | 175 |
37484
c22fd3c4c23e
largefiles: wrap heads command handler more directly
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37414
diff
changeset
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176 def heads(orig, repo, proto): |
28576
33bd95443e7f
largefiles: add some docstrings
Mads Kiilerich <madski@unity3d.com>
parents:
26825
diff
changeset
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177 '''Wrap server command - largefile capable clients will know to call |
33bd95443e7f
largefiles: add some docstrings
Mads Kiilerich <madski@unity3d.com>
parents:
26825
diff
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178 lheads instead''' |
15168 | 179 if lfutil.islfilesrepo(repo): |
37293
d5d665f6615a
wireproto: stop aliasing wire protocol types (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
36656
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180 return wireprototypes.ooberror(LARGEFILES_REQUIRED_MSG) |
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c22fd3c4c23e
largefiles: wrap heads command handler more directly
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37414
diff
changeset
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181 |
c22fd3c4c23e
largefiles: wrap heads command handler more directly
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37414
diff
changeset
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182 return orig(repo, proto) |
15168 | 183 |
16247
d87d9d8a8e03
largefiles: remove use of underscores that breaks coding convention
Na'Tosha Bard <natosha@unity3d.com>
parents:
16155
diff
changeset
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184 def sshrepocallstream(self, cmd, **args): |
15168 | 185 if cmd == 'heads' and self.capable('largefiles'): |
186 cmd = 'lheads' | |
187 if cmd == 'batch' and self.capable('largefiles'): | |
35348
576ba8194fa8
py3: handle keyword arguments correctly in hgext/largefiles/
Pulkit Goyal <7895pulkit@gmail.com>
parents:
30466
diff
changeset
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188 args[r'cmds'] = args[r'cmds'].replace('heads ', 'lheads ') |
16247
d87d9d8a8e03
largefiles: remove use of underscores that breaks coding convention
Na'Tosha Bard <natosha@unity3d.com>
parents:
16155
diff
changeset
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189 return ssholdcallstream(self, cmd, **args) |
15168 | 190 |
36312
3ac8b5c1c36c
largefiles: mark headre as bytes regex
Augie Fackler <augie@google.com>
parents:
36074
diff
changeset
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191 headsre = re.compile(br'(^|;)heads\b') |
19917
cff331cbb5ee
largefiles: make the protocol hack for replacing heads with lheads more precise
Mads Kiilerich <madski@unity3d.com>
parents:
19009
diff
changeset
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192 |
16247
d87d9d8a8e03
largefiles: remove use of underscores that breaks coding convention
Na'Tosha Bard <natosha@unity3d.com>
parents:
16155
diff
changeset
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193 def httprepocallstream(self, cmd, **args): |
15168 | 194 if cmd == 'heads' and self.capable('largefiles'): |
195 cmd = 'lheads' | |
196 if cmd == 'batch' and self.capable('largefiles'): | |
35348
576ba8194fa8
py3: handle keyword arguments correctly in hgext/largefiles/
Pulkit Goyal <7895pulkit@gmail.com>
parents:
30466
diff
changeset
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197 args[r'cmds'] = headsre.sub('lheads', args[r'cmds']) |
16247
d87d9d8a8e03
largefiles: remove use of underscores that breaks coding convention
Na'Tosha Bard <natosha@unity3d.com>
parents:
16155
diff
changeset
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198 return httpoldcallstream(self, cmd, **args) |