Mercurial > hg
annotate mercurial/statichttprepo.py @ 16719:e7bf09acd410
localrepo: add branchtip() method for faster single-branch lookups
For the PyPy repo with 744 branches and 843 branch heads, this brings
hg log -r default over NFS from:
CallCount Recursive Total(ms) Inline(ms) module:lineno(function)
3249 0 1.3222 1.3222 <open>
3244 0 0.6211 0.6211 <method 'close' of 'file' objects>
3243 0 0.0800 0.0800 <method 'read' of 'file' objects>
3241 0 0.0660 0.0660 <method 'seek' of 'file' objects>
3905 0 0.0476 0.0476 <zlib.decompress>
3281 0 2.6756 0.0472 mercurial.changelog:182(read)
+3281 0 2.5256 0.0453 +mercurial.revlog:881(revision)
+3276 0 0.0389 0.0196 +mercurial.changelog:28(decodeextra)
+6562 0 0.0123 0.0123 +<method 'split' of 'str' objects>
+6562 0 0.0408 0.0073 +mercurial.encoding:61(tolocal)
+3281 0 0.0054 0.0054 +<method 'index' of 'str' objects>
3241 0 2.2464 0.0456 mercurial.revlog:818(_loadchunk)
+3241 0 0.6205 0.6205 +<method 'close' of 'file' objects>
+3241 0 0.0765 0.0765 +<method 'read' of 'file' objects>
+3241 0 0.0660 0.0660 +<method 'seek' of 'file' objects>
+3241 0 1.4209 0.0135 +mercurial.store:374(__call__)
+3241 0 0.0122 0.0107 +mercurial.revlog:810(_addchunk)
3281 0 2.5256 0.0453 mercurial.revlog:881(revision)
+3280 0 0.0175 0.0175 +mercurial.revlog:305(rev)
+3281 0 2.2819 0.0119 +mercurial.revlog:847(_chunkraw)
+3281 0 0.0603 0.0083 +mercurial.revlog:945(_checkhash)
+3281 0 0.0051 0.0051 +mercurial.revlog:349(flags)
+3281 0 0.0040 0.0040 +<mercurial.mpatch.patches>
13682 0 0.0479 0.0248 <method 'decode' of 'str' objects>
+7418 0 0.0228 0.0076 +encodings.utf_8:15(decode)
+1 0 0.0003 0.0000 +encodings:71(search_function)
3248 0 1.3995 0.0246 mercurial.scmutil:218(__call__)
+3248 0 1.3222 1.3222 +<open>
+3248 0 0.0235 0.0184 +os.path:80(split)
+3248 0 0.0084 0.0068 +mercurial.scmutil:92(__call__)
Time: real 2.750 secs (user 0.680+0.000 sys 0.360+0.000)
down to:
CallCount Recursive Total(ms) Inline(ms) module:lineno(function)
55 31 0.0197 0.0163 <__import__>
+1 0 0.0006 0.0002 +mercurial.context:8(<module>)
+1 0 0.0042 0.0001 +mercurial.revlog:12(<module>)
+1 0 0.0002 0.0001 +mercurial.match:8(<module>)
+1 0 0.0003 0.0001 +mercurial.dirstate:7(<module>)
+1 0 0.0057 0.0001 +mercurial.changelog:8(<module>)
1 0 0.0117 0.0032 mercurial.localrepo:525(_readbranchcache)
+844 0 0.0015 0.0015 +<binascii.unhexlify>
+845 0 0.0010 0.0010 +<method 'split' of 'str' objects>
+843 0 0.0045 0.0009 +mercurial.encoding:61(tolocal)
+843 0 0.0004 0.0004 +<method 'setdefault' of 'dict' objects>
+1 0 0.0003 0.0003 +<method 'close' of 'file' objects>
3 0 0.0029 0.0029 <method 'read' of 'file' objects>
9 0 0.0018 0.0018 <open>
990 0 0.0017 0.0017 <binascii.unhexlify>
53 0 0.0016 0.0016 mercurial.demandimport:43(__init__)
862 0 0.0015 0.0015 <_codecs.utf_8_decode>
862 0 0.0037 0.0014 <method 'decode' of 'str' objects>
+862 0 0.0023 0.0008 +encodings.utf_8:15(decode)
981 0 0.0011 0.0011 <method 'split' of 'str' objects>
861 0 0.0046 0.0009 mercurial.encoding:61(tolocal)
+861 0 0.0037 0.0014 +<method 'decode' of 'str' objects>
862 0 0.0023 0.0008 encodings.utf_8:15(decode)
+862 0 0.0015 0.0015 +<_codecs.utf_8_decode>
4 0 0.0008 0.0008 <method 'close' of 'file' objects>
179 154 0.0202 0.0004 mercurial.demandimport:83(__getattribute__)
+36 11 0.0199 0.0003 +mercurial.demandimport:55(_load)
+72 0 0.0001 0.0001 +mercurial.demandimport:83(__getattribute__)
+36 0 0.0000 0.0000 +<getattr>
1 0 0.0015 0.0004 mercurial.tags:148(_readtagcache)
Time: real 0.060 secs (user 0.030+0.000 sys 0.010+0.000)
author | Brodie Rao <brodie@sf.io> |
---|---|
date | Sun, 13 May 2012 14:04:04 +0200 |
parents | 236bb604dc39 |
children | a2d6e336e9cc |
rev | line source |
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1101 | 1 # statichttprepo.py - simple http repository class for mercurial |
2 # | |
3 # This provides read-only repo access to repositories exported via static http | |
4 # | |
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5 # Copyright 2005-2007 Matt Mackall <mpm@selenic.com> |
1101 | 6 # |
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7 # This software may be used and distributed according to the terms of the |
10263 | 8 # GNU General Public License version 2 or any later version. |
1101 | 9 |
3891 | 10 from i18n import _ |
7637 | 11 import changelog, byterange, url, error |
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12 import localrepo, manifest, util, scmutil, store |
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13 import urllib, urllib2, errno |
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14 |
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15 class httprangereader(object): |
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16 def __init__(self, url, opener): |
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17 # we assume opener has HTTPRangeHandler |
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18 self.url = url |
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19 self.pos = 0 |
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20 self.opener = opener |
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21 self.name = url |
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22 def seek(self, pos): |
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23 self.pos = pos |
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24 def read(self, bytes=None): |
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25 req = urllib2.Request(self.url) |
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26 end = '' |
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27 if bytes: |
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28 end = self.pos + bytes - 1 |
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29 req.add_header('Range', 'bytes=%d-%s' % (self.pos, end)) |
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30 |
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31 try: |
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32 f = self.opener.open(req) |
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33 data = f.read() |
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34 # Python 2.6+ defines a getcode() function, and 2.4 and |
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35 # 2.5 appear to always have an undocumented code attribute |
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36 # set. If we can't read either of those, fall back to 206 |
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37 # and hope for the best. |
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38 code = getattr(f, 'getcode', lambda : getattr(f, 'code', 206))() |
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39 except urllib2.HTTPError, inst: |
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40 num = inst.code == 404 and errno.ENOENT or None |
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41 raise IOError(num, inst) |
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42 except urllib2.URLError, inst: |
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43 raise IOError(None, inst.reason[1]) |
1101 | 44 |
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45 if code == 200: |
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46 # HTTPRangeHandler does nothing if remote does not support |
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47 # Range headers and returns the full entity. Let's slice it. |
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48 if bytes: |
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49 data = data[self.pos:self.pos + bytes] |
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50 else: |
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51 data = data[self.pos:] |
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52 elif bytes: |
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53 data = data[:bytes] |
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54 self.pos += len(data) |
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55 return data |
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56 def __iter__(self): |
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57 return iter(self.read().splitlines(1)) |
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58 def close(self): |
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59 pass |
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60 |
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61 def build_opener(ui, authinfo): |
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62 # urllib cannot handle URLs with embedded user or passwd |
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63 urlopener = url.opener(ui, authinfo) |
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64 urlopener.add_handler(byterange.HTTPRangeHandler()) |
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65 |
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66 class statichttpopener(scmutil.abstractopener): |
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67 def __init__(self, base): |
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68 self.base = base |
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69 |
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70 def __call__(self, path, mode="r", atomictemp=None): |
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71 if mode not in ('r', 'rb'): |
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72 raise IOError('Permission denied') |
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73 f = "/".join((self.base, urllib.quote(path))) |
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74 return httprangereader(f, urlopener) |
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75 |
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76 return statichttpopener |
1101 | 77 |
78 class statichttprepository(localrepo.localrepository): | |
79 def __init__(self, ui, path): | |
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80 self._url = path |
1101 | 81 self.ui = ui |
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82 |
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83 self.root = path |
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84 u = util.url(path.rstrip('/') + "/.hg") |
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85 self.path, authinfo = u.authinfo() |
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86 |
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87 opener = build_opener(ui, authinfo) |
1101 | 88 self.opener = opener(self.path) |
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89 self._phasedefaults = [] |
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90 |
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91 try: |
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92 requirements = scmutil.readrequires(self.opener, self.supported) |
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93 except IOError, inst: |
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94 if inst.errno != errno.ENOENT: |
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95 raise |
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96 requirements = set() |
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97 |
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98 # check if it is a non-empty old-style repository |
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99 try: |
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100 fp = self.opener("00changelog.i") |
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101 fp.read(1) |
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102 fp.close() |
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103 except IOError, inst: |
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104 if inst.errno != errno.ENOENT: |
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105 raise |
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106 # we do not care about empty old-style repositories here |
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107 msg = _("'%s' does not appear to be an hg repository") % path |
7637 | 108 raise error.RepoError(msg) |
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109 |
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110 # setup store |
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111 self.store = store.store(requirements, self.path, opener) |
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112 self.spath = self.store.path |
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113 self.sopener = self.store.opener |
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114 self.sjoin = self.store.join |
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115 self._filecache = {} |
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116 |
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117 self.manifest = manifest.manifest(self.sopener) |
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118 self.changelog = changelog.changelog(self.sopener) |
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119 self._tags = None |
1101 | 120 self.nodetagscache = None |
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121 self._branchcache = None |
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122 self._branchcachetip = None |
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123 self.encodepats = None |
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124 self.decodepats = None |
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125 self.capabilities.difference_update(["pushkey"]) |
1101 | 126 |
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127 def url(self): |
7211 | 128 return self._url |
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129 |
1101 | 130 def local(self): |
131 return False | |
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132 |
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133 def lock(self, wait=True): |
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134 raise util.Abort(_('cannot lock static-http repository')) |
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135 |
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136 def instance(ui, path, create): |
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137 if create: |
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138 raise util.Abort(_('cannot create new static-http repository')) |
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139 return statichttprepository(ui, path[7:]) |