Mercurial > hg
annotate mercurial/hgweb/protocol.py @ 9680:8cea86d73887
lock: use '==' instead of 'is' for integer equality ('is' may not work)
author | Benoit Boissinot <benoit.boissinot@ens-lyon.org> |
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date | Sat, 31 Oct 2009 17:07:12 +0100 |
parents | 061eeb602354 |
children | 8269fe2d48f6 |
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1 # |
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2 # Copyright 21 May 2005 - (c) 2005 Jake Edge <jake@edge2.net> |
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3 # Copyright 2005-2007 Matt Mackall <mpm@selenic.com> |
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4 # |
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5 # This software may be used and distributed according to the terms of the |
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6 # GNU General Public License version 2, incorporated herein by reference. |
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7 |
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8 import cStringIO, zlib, tempfile, errno, os, sys, urllib |
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9 from mercurial import util, streamclone |
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10 from mercurial.node import bin, hex |
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11 from mercurial import changegroup as changegroupmod |
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12 from common import ErrorResponse, HTTP_OK, HTTP_NOT_FOUND, HTTP_SERVER_ERROR |
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13 |
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14 # __all__ is populated with the allowed commands. Be sure to add to it if |
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15 # you're adding a new command, or the new command won't work. |
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16 |
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17 __all__ = [ |
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18 'lookup', 'heads', 'branches', 'between', 'changegroup', |
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19 'changegroupsubset', 'capabilities', 'unbundle', 'stream_out', |
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20 'branchmap', |
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21 ] |
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22 |
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23 HGTYPE = 'application/mercurial-0.1' |
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24 |
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25 def lookup(repo, req): |
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26 try: |
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27 r = hex(repo.lookup(req.form['key'][0])) |
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28 success = 1 |
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29 except Exception, inst: |
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30 r = str(inst) |
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31 success = 0 |
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32 resp = "%s %s\n" % (success, r) |
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33 req.respond(HTTP_OK, HGTYPE, length=len(resp)) |
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34 yield resp |
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35 |
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36 def heads(repo, req): |
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37 resp = " ".join(map(hex, repo.heads())) + "\n" |
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38 req.respond(HTTP_OK, HGTYPE, length=len(resp)) |
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39 yield resp |
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40 |
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41 def branchmap(repo, req): |
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42 branches = repo.branchmap() |
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43 heads = [] |
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44 for branch, nodes in branches.iteritems(): |
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45 branchname = urllib.quote(branch) |
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46 branchnodes = [hex(node) for node in nodes] |
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47 heads.append('%s %s' % (branchname, ' '.join(branchnodes))) |
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48 resp = '\n'.join(heads) |
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49 req.respond(HTTP_OK, HGTYPE, length=len(resp)) |
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50 yield resp |
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51 |
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52 def branches(repo, req): |
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53 nodes = [] |
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54 if 'nodes' in req.form: |
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55 nodes = map(bin, req.form['nodes'][0].split(" ")) |
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56 resp = cStringIO.StringIO() |
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57 for b in repo.branches(nodes): |
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58 resp.write(" ".join(map(hex, b)) + "\n") |
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59 resp = resp.getvalue() |
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60 req.respond(HTTP_OK, HGTYPE, length=len(resp)) |
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61 yield resp |
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62 |
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63 def between(repo, req): |
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64 if 'pairs' in req.form: |
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65 pairs = [map(bin, p.split("-")) |
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66 for p in req.form['pairs'][0].split(" ")] |
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67 resp = cStringIO.StringIO() |
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68 for b in repo.between(pairs): |
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69 resp.write(" ".join(map(hex, b)) + "\n") |
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70 resp = resp.getvalue() |
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71 req.respond(HTTP_OK, HGTYPE, length=len(resp)) |
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72 yield resp |
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73 |
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74 def changegroup(repo, req): |
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75 req.respond(HTTP_OK, HGTYPE) |
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76 nodes = [] |
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77 |
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78 if 'roots' in req.form: |
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79 nodes = map(bin, req.form['roots'][0].split(" ")) |
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80 |
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81 z = zlib.compressobj() |
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82 f = repo.changegroup(nodes, 'serve') |
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83 while 1: |
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84 chunk = f.read(4096) |
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85 if not chunk: |
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86 break |
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87 yield z.compress(chunk) |
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88 |
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89 yield z.flush() |
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90 |
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91 def changegroupsubset(repo, req): |
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92 req.respond(HTTP_OK, HGTYPE) |
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93 bases = [] |
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94 heads = [] |
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95 |
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96 if 'bases' in req.form: |
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97 bases = [bin(x) for x in req.form['bases'][0].split(' ')] |
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98 if 'heads' in req.form: |
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99 heads = [bin(x) for x in req.form['heads'][0].split(' ')] |
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100 |
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101 z = zlib.compressobj() |
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102 f = repo.changegroupsubset(bases, heads, 'serve') |
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103 while 1: |
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104 chunk = f.read(4096) |
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105 if not chunk: |
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106 break |
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107 yield z.compress(chunk) |
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108 |
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109 yield z.flush() |
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110 |
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111 def capabilities(repo, req): |
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112 caps = ['lookup', 'changegroupsubset', 'branchmap'] |
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113 if repo.ui.configbool('server', 'uncompressed', untrusted=True): |
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114 caps.append('stream=%d' % repo.changelog.version) |
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115 if changegroupmod.bundlepriority: |
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116 caps.append('unbundle=%s' % ','.join(changegroupmod.bundlepriority)) |
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117 rsp = ' '.join(caps) |
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118 req.respond(HTTP_OK, HGTYPE, length=len(rsp)) |
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119 yield rsp |
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120 |
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121 def unbundle(repo, req): |
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122 |
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123 proto = req.env.get('wsgi.url_scheme') or 'http' |
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124 their_heads = req.form['heads'][0].split(' ') |
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125 |
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126 def check_heads(): |
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127 heads = map(hex, repo.heads()) |
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128 return their_heads == [hex('force')] or their_heads == heads |
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129 |
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130 # fail early if possible |
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131 if not check_heads(): |
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132 req.drain() |
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133 raise ErrorResponse(HTTP_OK, 'unsynced changes') |
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134 |
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135 # do not lock repo until all changegroup data is |
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136 # streamed. save to temporary file. |
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137 |
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138 fd, tempname = tempfile.mkstemp(prefix='hg-unbundle-') |
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139 fp = os.fdopen(fd, 'wb+') |
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140 try: |
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141 length = int(req.env['CONTENT_LENGTH']) |
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142 for s in util.filechunkiter(req, limit=length): |
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143 fp.write(s) |
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144 |
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145 try: |
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146 lock = repo.lock() |
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147 try: |
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148 if not check_heads(): |
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149 raise ErrorResponse(HTTP_OK, 'unsynced changes') |
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150 |
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151 fp.seek(0) |
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152 header = fp.read(6) |
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153 if header.startswith('HG') and not header.startswith('HG10'): |
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154 raise ValueError('unknown bundle version') |
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155 elif header not in changegroupmod.bundletypes: |
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156 raise ValueError('unknown bundle compression type') |
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157 gen = changegroupmod.unbundle(header, fp) |
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158 |
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159 # send addchangegroup output to client |
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160 |
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161 oldio = sys.stdout, sys.stderr |
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162 sys.stderr = sys.stdout = cStringIO.StringIO() |
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163 |
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164 try: |
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165 url = 'remote:%s:%s:%s' % ( |
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166 proto, |
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167 urllib.quote(req.env.get('REMOTE_HOST', '')), |
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168 urllib.quote(req.env.get('REMOTE_USER', ''))) |
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169 try: |
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170 ret = repo.addchangegroup(gen, 'serve', url) |
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171 except util.Abort, inst: |
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172 sys.stdout.write("abort: %s\n" % inst) |
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173 ret = 0 |
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174 finally: |
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175 val = sys.stdout.getvalue() |
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176 sys.stdout, sys.stderr = oldio |
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177 req.respond(HTTP_OK, HGTYPE) |
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178 return '%d\n%s' % (ret, val), |
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179 finally: |
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180 lock.release() |
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181 except ValueError, inst: |
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182 raise ErrorResponse(HTTP_OK, inst) |
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183 except (OSError, IOError), inst: |
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184 filename = getattr(inst, 'filename', '') |
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185 # Don't send our filesystem layout to the client |
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186 if filename.startswith(repo.root): |
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187 filename = filename[len(repo.root)+1:] |
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188 else: |
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189 filename = '' |
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190 error = getattr(inst, 'strerror', 'Unknown error') |
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191 if inst.errno == errno.ENOENT: |
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192 code = HTTP_NOT_FOUND |
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193 else: |
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194 code = HTTP_SERVER_ERROR |
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195 raise ErrorResponse(code, '%s: %s' % (error, filename)) |
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196 finally: |
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197 fp.close() |
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198 os.unlink(tempname) |
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199 |
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200 def stream_out(repo, req): |
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201 req.respond(HTTP_OK, HGTYPE) |
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202 try: |
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203 for chunk in streamclone.stream_out(repo, untrusted=True): |
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204 yield chunk |
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205 except streamclone.StreamException, inst: |
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206 yield str(inst) |