annotate mercurial/statichttprepo.py @ 41615:328ca3b9e545

branchmap: encapsulate cache updating in the map itself Rather than have a repository update the cache, move handling of cache updates into the branchmap module, in the form of a custom mapping class. This makes later performance improvements easier to handle too. Differential Revision: https://phab.mercurial-scm.org/D5638
author Martijn Pieters <mj@octobus.net>
date Mon, 21 Jan 2019 17:37:33 +0000
parents 6e9bebb65ce7
children d345627d104b
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 # statichttprepo.py - simple http repository class for mercurial
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2 #
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3 # This provides read-only repo access to repositories exported via static http
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4 #
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5 # Copyright 2005-2007 Matt Mackall <mpm@selenic.com>
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6 #
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7 # This software may be used and distributed according to the terms of the
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8 # GNU General Public License version 2 or any later version.
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9
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10 from __future__ import absolute_import
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11
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12 import errno
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13
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14 from .i18n import _
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15 from . import (
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16 branchmap,
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17 changelog,
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18 error,
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19 localrepo,
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20 manifest,
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21 namespaces,
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Yuya Nishihara <yuya@tcha.org>
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22 pathutil,
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23 pycompat,
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24 url,
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25 util,
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26 vfs as vfsmod,
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27 )
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28
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29 urlerr = util.urlerr
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30 urlreq = util.urlreq
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31
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32 class httprangereader(object):
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33 def __init__(self, url, opener):
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34 # we assume opener has HTTPRangeHandler
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35 self.url = url
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36 self.pos = 0
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37 self.opener = opener
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38 self.name = url
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39
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40 def __enter__(self):
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41 return self
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42
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43 def __exit__(self, exc_type, exc_value, traceback):
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44 self.close()
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45
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46 def seek(self, pos):
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47 self.pos = pos
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48 def read(self, bytes=None):
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49 req = urlreq.request(pycompat.strurl(self.url))
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50 end = ''
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51 if bytes:
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52 end = self.pos + bytes - 1
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53 if self.pos or end:
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54 req.add_header(r'Range', r'bytes=%d-%s' % (self.pos, end))
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55
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56 try:
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57 f = self.opener.open(req)
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58 data = f.read()
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59 code = f.code
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60 except urlerr.httperror as inst:
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61 num = inst.code == 404 and errno.ENOENT or None
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62 raise IOError(num, inst)
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63 except urlerr.urlerror as inst:
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64 raise IOError(None, inst.reason)
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65
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66 if code == 200:
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67 # HTTPRangeHandler does nothing if remote does not support
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68 # Range headers and returns the full entity. Let's slice it.
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69 if bytes:
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70 data = data[self.pos:self.pos + bytes]
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71 else:
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72 data = data[self.pos:]
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73 elif bytes:
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74 data = data[:bytes]
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75 self.pos += len(data)
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76 return data
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77 def readlines(self):
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78 return self.read().splitlines(True)
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79 def __iter__(self):
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80 return iter(self.readlines())
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81 def close(self):
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82 pass
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83
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84 # _RangeError and _HTTPRangeHandler were originally in byterange.py,
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85 # which was itself extracted from urlgrabber. See the last version of
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86 # byterange.py from history if you need more information.
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87 class _RangeError(IOError):
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88 """Error raised when an unsatisfiable range is requested."""
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89
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90 class _HTTPRangeHandler(urlreq.basehandler):
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91 """Handler that enables HTTP Range headers.
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92
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93 This was extremely simple. The Range header is a HTTP feature to
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94 begin with so all this class does is tell urllib2 that the
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95 "206 Partial Content" response from the HTTP server is what we
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96 expected.
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97 """
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98
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99 def http_error_206(self, req, fp, code, msg, hdrs):
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100 # 206 Partial Content Response
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101 r = urlreq.addinfourl(fp, hdrs, req.get_full_url())
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102 r.code = code
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103 r.msg = msg
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104 return r
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105
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106 def http_error_416(self, req, fp, code, msg, hdrs):
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107 # HTTP's Range Not Satisfiable error
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108 raise _RangeError('Requested Range Not Satisfiable')
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109
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110 def build_opener(ui, authinfo):
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111 # urllib cannot handle URLs with embedded user or passwd
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112 urlopener = url.opener(ui, authinfo)
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113 urlopener.add_handler(_HTTPRangeHandler())
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114
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Pierre-Yves David <pierre-yves.david@ens-lyon.org>
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115 class statichttpvfs(vfsmod.abstractvfs):
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116 def __init__(self, base):
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117 self.base = base
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118
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119 def __call__(self, path, mode='r', *args, **kw):
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120 if mode not in ('r', 'rb'):
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121 raise IOError('Permission denied')
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122 f = "/".join((self.base, urlreq.quote(path)))
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diff changeset
123 return httprangereader(f, urlopener)
95f3694cc5a4 statichttprepo: cleanups, use url.py (proxy, password support)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7211
diff changeset
124
17725
ffd589d4b785 vfs: define "join()" in each classes derived from "abstractvfs"
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 17649
diff changeset
125 def join(self, path):
ffd589d4b785 vfs: define "join()" in each classes derived from "abstractvfs"
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 17649
diff changeset
126 if path:
34943
3423f7e2d287 statichttprepo: do not use platform path separator to build a URL
Yuya Nishihara <yuya@tcha.org>
parents: 33604
diff changeset
127 return pathutil.join(self.base, path)
17725
ffd589d4b785 vfs: define "join()" in each classes derived from "abstractvfs"
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 17649
diff changeset
128 else:
ffd589d4b785 vfs: define "join()" in each classes derived from "abstractvfs"
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 17649
diff changeset
129 return self.base
ffd589d4b785 vfs: define "join()" in each classes derived from "abstractvfs"
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 17649
diff changeset
130
17649
f65c6a5f256c scmutil: rename classes from "opener" to "vfs"
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 17193
diff changeset
131 return statichttpvfs
1101
2cf5c8a4eae5 Separate out old-http support
mpm@selenic.com
parents:
diff changeset
132
17192
1ac628cd7113 peer: introduce real peer classes
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 17156
diff changeset
133 class statichttppeer(localrepo.localpeer):
1ac628cd7113 peer: introduce real peer classes
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 17156
diff changeset
134 def local(self):
1ac628cd7113 peer: introduce real peer classes
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 17156
diff changeset
135 return None
17193
1d710fe5ee0e peer: introduce canpush and improve error message
Sune Foldager <cryo@cyanite.org>
parents: 17192
diff changeset
136 def canpush(self):
1d710fe5ee0e peer: introduce canpush and improve error message
Sune Foldager <cryo@cyanite.org>
parents: 17192
diff changeset
137 return False
17192
1ac628cd7113 peer: introduce real peer classes
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 17156
diff changeset
138
39764
e4e881572382 localrepo: iteratively derive local repository type
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39763
diff changeset
139 class statichttprepository(localrepo.localrepository,
e4e881572382 localrepo: iteratively derive local repository type
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39763
diff changeset
140 localrepo.revlogfilestorage):
19778
55ef79031009 localrepo: make supported features manageable in each repositories individually
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 18915
diff changeset
141 supported = localrepo.localrepository._basesupported
55ef79031009 localrepo: make supported features manageable in each repositories individually
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 18915
diff changeset
142
1101
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mpm@selenic.com
parents:
diff changeset
143 def __init__(self, ui, path):
2673
109a22f5434a hooks: add url to changegroup, incoming, prechangegroup, pretxnchangegroup hooks
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2072
diff changeset
144 self._url = path
1101
2cf5c8a4eae5 Separate out old-http support
mpm@selenic.com
parents:
diff changeset
145 self.ui = ui
3853
c0b449154a90 switch to the .hg/store layout, fix the tests
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3851
diff changeset
146
11066
26abd91d9e84 static-http: mimic more closely localrepo (issue2164: allow clone -r )
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents: 10263
diff changeset
147 self.root = path
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 13819
diff changeset
148 u = util.url(path.rstrip('/') + "/.hg")
13819
d16894e29f91 httprepo/sshrepo: use url.url
Brodie Rao <brodie@bitheap.org>
parents: 13533
diff changeset
149 self.path, authinfo = u.authinfo()
7274
95f3694cc5a4 statichttprepo: cleanups, use url.py (proxy, password support)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7211
diff changeset
150
31147
e04ab2a5bf90 statichttp: use 'repo.vfs' as the main attribute
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 30219
diff changeset
151 vfsclass = build_opener(ui, authinfo)
e04ab2a5bf90 statichttp: use 'repo.vfs' as the main attribute
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 30219
diff changeset
152 self.vfs = vfsclass(self.path)
33533
4133c0b0fcd7 cachevfs: add a vfs dedicated to cache
Boris Feld <boris.feld@octobus.net>
parents: 33389
diff changeset
153 self.cachevfs = vfsclass(self.vfs.join('cache'))
15922
23921c17299a phases: mechanism to allow extension to alter initial computation of phase
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 14962
diff changeset
154 self._phasedefaults = []
6028
6605a03cbf87 make static-http work with empty repos (issue965)
Dirkjan Ochtman <dirkjan@ochtman.nl>
parents: 5321
diff changeset
155
23561
3c2419e07df5 namespaces: remove weakref; always pass in repo
Ryan McElroy <rmcelroy@fb.com>
parents: 23558
diff changeset
156 self.names = namespaces.namespaces()
32730
b8ff7d0ff361 localrepo: move filtername to __init__
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31241
diff changeset
157 self.filtername = None
23558
3198aac7a95d namespaces: add bookmarks to the names data structure
Sean Farley <sean.michael.farley@gmail.com>
parents: 23552
diff changeset
158
3851
8f18e31c4441 add "requires" file to the repo, specifying the requirements
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3794
diff changeset
159 try:
39694
6192980553b4 statichttprepo: use new functions for requirements validation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39549
diff changeset
160 requirements = set(self.vfs.read(b'requires').splitlines())
25660
328739ea70c3 global: mass rewrite to use modern exception syntax
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25196
diff changeset
161 except IOError as inst:
7178
98b6c3dde237 Fix Debian bug #494889 (fetching from static-http://... broken)
Thomas Arendsen Hein <thomas@intevation.de>
parents: 6312
diff changeset
162 if inst.errno != errno.ENOENT:
98b6c3dde237 Fix Debian bug #494889 (fetching from static-http://... broken)
Thomas Arendsen Hein <thomas@intevation.de>
parents: 6312
diff changeset
163 raise
14482
58b36e9ea783 introduce new function scmutil.readrequires
Adrian Buehlmann <adrian@cadifra.com>
parents: 14168
diff changeset
164 requirements = set()
58b36e9ea783 introduce new function scmutil.readrequires
Adrian Buehlmann <adrian@cadifra.com>
parents: 14168
diff changeset
165
7178
98b6c3dde237 Fix Debian bug #494889 (fetching from static-http://... broken)
Thomas Arendsen Hein <thomas@intevation.de>
parents: 6312
diff changeset
166 # check if it is a non-empty old-style repository
98b6c3dde237 Fix Debian bug #494889 (fetching from static-http://... broken)
Thomas Arendsen Hein <thomas@intevation.de>
parents: 6312
diff changeset
167 try:
23877
7cc77030c557 localrepo: remove all external users of localrepo.opener
Angel Ezquerra <angel.ezquerra@gmail.com>
parents: 23561
diff changeset
168 fp = self.vfs("00changelog.i")
13400
14f3795a5ed7 explicitly close files
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 13253
diff changeset
169 fp.read(1)
14f3795a5ed7 explicitly close files
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 13253
diff changeset
170 fp.close()
25660
328739ea70c3 global: mass rewrite to use modern exception syntax
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25196
diff changeset
171 except IOError as inst:
7178
98b6c3dde237 Fix Debian bug #494889 (fetching from static-http://... broken)
Thomas Arendsen Hein <thomas@intevation.de>
parents: 6312
diff changeset
172 if inst.errno != errno.ENOENT:
98b6c3dde237 Fix Debian bug #494889 (fetching from static-http://... broken)
Thomas Arendsen Hein <thomas@intevation.de>
parents: 6312
diff changeset
173 raise
98b6c3dde237 Fix Debian bug #494889 (fetching from static-http://... broken)
Thomas Arendsen Hein <thomas@intevation.de>
parents: 6312
diff changeset
174 # we do not care about empty old-style repositories here
6028
6605a03cbf87 make static-http work with empty repos (issue965)
Dirkjan Ochtman <dirkjan@ochtman.nl>
parents: 5321
diff changeset
175 msg = _("'%s' does not appear to be an hg repository") % path
7637
1d54e2f6c0b7 error: move repo errors
Matt Mackall <mpm@selenic.com>
parents: 7274
diff changeset
176 raise error.RepoError(msg)
3851
8f18e31c4441 add "requires" file to the repo, specifying the requirements
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3794
diff changeset
177
39694
6192980553b4 statichttprepo: use new functions for requirements validation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39549
diff changeset
178 supportedrequirements = localrepo.gathersupportedrequirements(ui)
6192980553b4 statichttprepo: use new functions for requirements validation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39549
diff changeset
179 localrepo.ensurerequirementsrecognized(requirements,
6192980553b4 statichttprepo: use new functions for requirements validation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39549
diff changeset
180 supportedrequirements)
39695
cb2dcfa5cade localrepo: move requirements reasonability testing to own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39694
diff changeset
181 localrepo.ensurerequirementscompatible(ui, requirements)
39694
6192980553b4 statichttprepo: use new functions for requirements validation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39549
diff changeset
182
3851
8f18e31c4441 add "requires" file to the repo, specifying the requirements
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3794
diff changeset
183 # setup store
39698
f44187605315 localrepo: move store() from store module
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39695
diff changeset
184 self.store = localrepo.makestore(requirements, self.path, vfsclass)
6897
faea0d27e38f statichttp: use store class
Matt Mackall <mpm@selenic.com>
parents: 6840
diff changeset
185 self.spath = self.store.path
23878
37a92908a382 localrepo: remove all external users of localrepo.sopener
Angel Ezquerra <angel.ezquerra@gmail.com>
parents: 23877
diff changeset
186 self.svfs = self.store.opener
6897
faea0d27e38f statichttp: use store class
Matt Mackall <mpm@selenic.com>
parents: 6840
diff changeset
187 self.sjoin = self.store.join
16115
236bb604dc39 scmutil: update cached copy when filecached attribute is assigned (issue3263)
Idan Kamara <idankk86@gmail.com>
parents: 15922
diff changeset
188 self._filecache = {}
17192
1ac628cd7113 peer: introduce real peer classes
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 17156
diff changeset
189 self.requirements = requirements
3851
8f18e31c4441 add "requires" file to the repo, specifying the requirements
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3794
diff changeset
190
39763
5ccd791344f3 localrepo: pass root manifest into manifestlog.__init__
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39698
diff changeset
191 rootmanifest = manifest.manifestrevlog(self.svfs)
41038
3913223417ea manifest: accept narrowmatch into constructor instead of getting from repo
Martin von Zweigbergk <martinvonz@google.com>
parents: 39764
diff changeset
192 self.manifestlog = manifest.manifestlog(self.svfs, self, rootmanifest,
3913223417ea manifest: accept narrowmatch into constructor instead of getting from repo
Martin von Zweigbergk <martinvonz@google.com>
parents: 39764
diff changeset
193 self.narrowmatch())
23878
37a92908a382 localrepo: remove all external users of localrepo.sopener
Angel Ezquerra <angel.ezquerra@gmail.com>
parents: 23877
diff changeset
194 self.changelog = changelog.changelog(self.svfs)
9146
5614a628d173 localrepo: rename in-memory tag cache instance attributes (issue548).
Greg Ward <greg-hg@gerg.ca>
parents: 8612
diff changeset
195 self._tags = None
1101
2cf5c8a4eae5 Separate out old-http support
mpm@selenic.com
parents:
diff changeset
196 self.nodetagscache = None
41615
328ca3b9e545 branchmap: encapsulate cache updating in the map itself
Martijn Pieters <mj@octobus.net>
parents: 41407
diff changeset
197 self._branchcaches = branchmap.BranchMapCache()
24373
59cc09240afb revbranchcache: move out of branchmap onto localrepo
Durham Goode <durham@fb.com>
parents: 23878
diff changeset
198 self._revbranchcache = None
1598
14d1f1868bf6 cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1325
diff changeset
199 self.encodepats = None
14d1f1868bf6 cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1325
diff changeset
200 self.decodepats = None
24377
656f93ce66d5 revbranchcache: move cache writing to the transaction finalizer
Durham Goode <durham@fb.com>
parents: 24373
diff changeset
201 self._transref = None
17192
1ac628cd7113 peer: introduce real peer classes
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 17156
diff changeset
202
1ac628cd7113 peer: introduce real peer classes
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 17156
diff changeset
203 def _restrictcapabilities(self, caps):
20962
af4158b8876b statichttp: respect localrepo _restrictcapabilities
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20055
diff changeset
204 caps = super(statichttprepository, self)._restrictcapabilities(caps)
17192
1ac628cd7113 peer: introduce real peer classes
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 17156
diff changeset
205 return caps.difference(["pushkey"])
1101
2cf5c8a4eae5 Separate out old-http support
mpm@selenic.com
parents:
diff changeset
206
2673
109a22f5434a hooks: add url to changegroup, incoming, prechangegroup, pretxnchangegroup hooks
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2072
diff changeset
207 def url(self):
7211
25c0dee16ee0 Autodetect static-http
Matt Mackall <mpm@selenic.com>
parents: 7179
diff changeset
208 return self._url
2673
109a22f5434a hooks: add url to changegroup, incoming, prechangegroup, pretxnchangegroup hooks
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2072
diff changeset
209
1101
2cf5c8a4eae5 Separate out old-http support
mpm@selenic.com
parents:
diff changeset
210 def local(self):
2cf5c8a4eae5 Separate out old-http support
mpm@selenic.com
parents:
diff changeset
211 return False
2740
386f04d6ecb3 clean up hg.py: move repo constructor code into each repo module
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2673
diff changeset
212
17192
1ac628cd7113 peer: introduce real peer classes
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 17156
diff changeset
213 def peer(self):
1ac628cd7113 peer: introduce real peer classes
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 17156
diff changeset
214 return statichttppeer(self)
1ac628cd7113 peer: introduce real peer classes
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 17156
diff changeset
215
33604
8b00c723cee1 statichttprepo: implement wlock() (issue5613)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 33533
diff changeset
216 def wlock(self, wait=True):
36657
214f61abd865 py3: back out c77c925987d7 to store bytes filename in IOError
Yuya Nishihara <yuya@tcha.org>
parents: 36640
diff changeset
217 raise error.LockUnavailable(0, _('lock not available'), 'lock',
33604
8b00c723cee1 statichttprepo: implement wlock() (issue5613)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 33533
diff changeset
218 _('cannot lock static-http repository'))
8b00c723cee1 statichttprepo: implement wlock() (issue5613)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 33533
diff changeset
219
7005
7739b61897df do not pretend to lock static-http repositories (issue994)
Martin Geisler <mg@daimi.au.dk>
parents: 6988
diff changeset
220 def lock(self, wait=True):
26587
56b2bcea2529 error: get Abort from 'error' instead of 'util'
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 25978
diff changeset
221 raise error.Abort(_('cannot lock static-http repository'))
7005
7739b61897df do not pretend to lock static-http repositories (issue994)
Martin Geisler <mg@daimi.au.dk>
parents: 6988
diff changeset
222
29738
c1696430254f statichttprepo: do not try to write caches
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 28883
diff changeset
223 def _writecaches(self):
c1696430254f statichttprepo: do not try to write caches
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 28883
diff changeset
224 pass # statichttprepository are read only
c1696430254f statichttprepo: do not try to write caches
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 28883
diff changeset
225
39549
089fc0db0954 hg: allow extra arguments to be passed to repo creation (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37717
diff changeset
226 def instance(ui, path, create, intents=None, createopts=None):
2740
386f04d6ecb3 clean up hg.py: move repo constructor code into each repo module
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2673
diff changeset
227 if create:
26587
56b2bcea2529 error: get Abort from 'error' instead of 'util'
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 25978
diff changeset
228 raise error.Abort(_('cannot create new static-http repository'))
4853
bf10a03a6b24 Removed deprecated hg:// and old-http:// protocols (issue406)
Thomas Arendsen Hein <thomas@intevation.de>
parents: 4635
diff changeset
229 return statichttprepository(ui, path[7:])