annotate mercurial/statichttprepo.py @ 39857:8dab7c8a93eb

upgrade: report size of backing files, not internal storage size upgrade.py is the only consumer of filelog.index, which I'd like to eliminate from the file storage interface. This commit changes the upgrade code to report the storage size of files by looking at the size of the files backing its storage instead of looking at the index. I'm not convinced the approach in this patch will live very long because it is relying on low-level attributes like "opener" and "files," which may behave very differently on non-revlog storage. But the data is only used for reporting purposes and it does get us one step closer to eliminating "index." A side-effect of this change is we now report the size of the revlog index data - not just the revision data. I think this is more accurate. Differential Revision: https://phab.mercurial-scm.org/D4717
author Gregory Szorc <gregory.szorc@gmail.com>
date Mon, 24 Sep 2018 09:37:19 -0700
parents e4e881572382
children 3913223417ea
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 changelog,
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17 error,
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18 localrepo,
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19 manifest,
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20 namespaces,
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21 pathutil,
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22 url,
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23 util,
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24 vfs as vfsmod,
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25 )
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26
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27 urlerr = util.urlerr
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28 urlreq = util.urlreq
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29
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30 class httprangereader(object):
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31 def __init__(self, url, opener):
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32 # we assume opener has HTTPRangeHandler
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33 self.url = url
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34 self.pos = 0
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35 self.opener = opener
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36 self.name = url
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37
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38 def __enter__(self):
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39 return self
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40
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41 def __exit__(self, exc_type, exc_value, traceback):
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42 self.close()
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43
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44 def seek(self, pos):
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45 self.pos = pos
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46 def read(self, bytes=None):
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47 req = urlreq.request(self.url)
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48 end = ''
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49 if bytes:
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50 end = self.pos + bytes - 1
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51 if self.pos or end:
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52 req.add_header('Range', 'bytes=%d-%s' % (self.pos, end))
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53
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54 try:
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55 f = self.opener.open(req)
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56 data = f.read()
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57 code = f.code
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58 except urlerr.httperror as inst:
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59 num = inst.code == 404 and errno.ENOENT or None
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60 raise IOError(num, inst)
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61 except urlerr.urlerror as inst:
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62 raise IOError(None, inst.reason[1])
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63
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64 if code == 200:
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65 # HTTPRangeHandler does nothing if remote does not support
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66 # Range headers and returns the full entity. Let's slice it.
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67 if bytes:
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68 data = data[self.pos:self.pos + bytes]
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69 else:
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70 data = data[self.pos:]
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71 elif bytes:
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72 data = data[:bytes]
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73 self.pos += len(data)
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74 return data
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75 def readlines(self):
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76 return self.read().splitlines(True)
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77 def __iter__(self):
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78 return iter(self.readlines())
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79 def close(self):
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80 pass
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81
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82 # _RangeError and _HTTPRangeHandler were originally in byterange.py,
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83 # which was itself extracted from urlgrabber. See the last version of
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84 # byterange.py from history if you need more information.
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85 class _RangeError(IOError):
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86 """Error raised when an unsatisfiable range is requested."""
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87
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88 class _HTTPRangeHandler(urlreq.basehandler):
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89 """Handler that enables HTTP Range headers.
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90
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91 This was extremely simple. The Range header is a HTTP feature to
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92 begin with so all this class does is tell urllib2 that the
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93 "206 Partial Content" response from the HTTP server is what we
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94 expected.
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95 """
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96
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97 def http_error_206(self, req, fp, code, msg, hdrs):
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98 # 206 Partial Content Response
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99 r = urlreq.addinfourl(fp, hdrs, req.get_full_url())
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100 r.code = code
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101 r.msg = msg
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102 return r
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103
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104 def http_error_416(self, req, fp, code, msg, hdrs):
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105 # HTTP's Range Not Satisfiable error
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106 raise _RangeError('Requested Range Not Satisfiable')
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107
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108 def build_opener(ui, authinfo):
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109 # urllib cannot handle URLs with embedded user or passwd
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110 urlopener = url.opener(ui, authinfo)
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111 urlopener.add_handler(_HTTPRangeHandler())
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112
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113 class statichttpvfs(vfsmod.abstractvfs):
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114 def __init__(self, base):
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115 self.base = base
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116
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117 def __call__(self, path, mode='r', *args, **kw):
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118 if mode not in ('r', 'rb'):
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119 raise IOError('Permission denied')
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120 f = "/".join((self.base, urlreq.quote(path)))
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121 return httprangereader(f, urlopener)
95f3694cc5a4 statichttprepo: cleanups, use url.py (proxy, password support)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7211
diff changeset
122
17725
ffd589d4b785 vfs: define "join()" in each classes derived from "abstractvfs"
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 17649
diff changeset
123 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
124 if path:
34943
3423f7e2d287 statichttprepo: do not use platform path separator to build a URL
Yuya Nishihara <yuya@tcha.org>
parents: 33604
diff changeset
125 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
126 else:
ffd589d4b785 vfs: define "join()" in each classes derived from "abstractvfs"
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 17649
diff changeset
127 return self.base
ffd589d4b785 vfs: define "join()" in each classes derived from "abstractvfs"
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 17649
diff changeset
128
17649
f65c6a5f256c scmutil: rename classes from "opener" to "vfs"
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 17193
diff changeset
129 return statichttpvfs
1101
2cf5c8a4eae5 Separate out old-http support
mpm@selenic.com
parents:
diff changeset
130
17192
1ac628cd7113 peer: introduce real peer classes
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 17156
diff changeset
131 class statichttppeer(localrepo.localpeer):
1ac628cd7113 peer: introduce real peer classes
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 17156
diff changeset
132 def local(self):
1ac628cd7113 peer: introduce real peer classes
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 17156
diff changeset
133 return None
17193
1d710fe5ee0e peer: introduce canpush and improve error message
Sune Foldager <cryo@cyanite.org>
parents: 17192
diff changeset
134 def canpush(self):
1d710fe5ee0e peer: introduce canpush and improve error message
Sune Foldager <cryo@cyanite.org>
parents: 17192
diff changeset
135 return False
17192
1ac628cd7113 peer: introduce real peer classes
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 17156
diff changeset
136
39764
e4e881572382 localrepo: iteratively derive local repository type
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39763
diff changeset
137 class statichttprepository(localrepo.localrepository,
e4e881572382 localrepo: iteratively derive local repository type
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39763
diff changeset
138 localrepo.revlogfilestorage):
19778
55ef79031009 localrepo: make supported features manageable in each repositories individually
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 18915
diff changeset
139 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
140
1101
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mpm@selenic.com
parents:
diff changeset
141 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
142 self._url = path
1101
2cf5c8a4eae5 Separate out old-http support
mpm@selenic.com
parents:
diff changeset
143 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
144
11066
26abd91d9e84 static-http: mimic more closely localrepo (issue2164: allow clone -r )
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents: 10263
diff changeset
145 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
146 u = util.url(path.rstrip('/') + "/.hg")
13819
d16894e29f91 httprepo/sshrepo: use url.url
Brodie Rao <brodie@bitheap.org>
parents: 13533
diff changeset
147 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
148
31147
e04ab2a5bf90 statichttp: use 'repo.vfs' as the main attribute
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 30219
diff changeset
149 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
150 self.vfs = vfsclass(self.path)
33533
4133c0b0fcd7 cachevfs: add a vfs dedicated to cache
Boris Feld <boris.feld@octobus.net>
parents: 33389
diff changeset
151 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
152 self._phasedefaults = []
6028
6605a03cbf87 make static-http work with empty repos (issue965)
Dirkjan Ochtman <dirkjan@ochtman.nl>
parents: 5321
diff changeset
153
23561
3c2419e07df5 namespaces: remove weakref; always pass in repo
Ryan McElroy <rmcelroy@fb.com>
parents: 23558
diff changeset
154 self.names = namespaces.namespaces()
32730
b8ff7d0ff361 localrepo: move filtername to __init__
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31241
diff changeset
155 self.filtername = None
23558
3198aac7a95d namespaces: add bookmarks to the names data structure
Sean Farley <sean.michael.farley@gmail.com>
parents: 23552
diff changeset
156
3851
8f18e31c4441 add "requires" file to the repo, specifying the requirements
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3794
diff changeset
157 try:
39694
6192980553b4 statichttprepo: use new functions for requirements validation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39549
diff changeset
158 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
159 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
160 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
161 raise
14482
58b36e9ea783 introduce new function scmutil.readrequires
Adrian Buehlmann <adrian@cadifra.com>
parents: 14168
diff changeset
162 requirements = set()
58b36e9ea783 introduce new function scmutil.readrequires
Adrian Buehlmann <adrian@cadifra.com>
parents: 14168
diff changeset
163
7178
98b6c3dde237 Fix Debian bug #494889 (fetching from static-http://... broken)
Thomas Arendsen Hein <thomas@intevation.de>
parents: 6312
diff changeset
164 # 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
165 try:
23877
7cc77030c557 localrepo: remove all external users of localrepo.opener
Angel Ezquerra <angel.ezquerra@gmail.com>
parents: 23561
diff changeset
166 fp = self.vfs("00changelog.i")
13400
14f3795a5ed7 explicitly close files
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 13253
diff changeset
167 fp.read(1)
14f3795a5ed7 explicitly close files
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 13253
diff changeset
168 fp.close()
25660
328739ea70c3 global: mass rewrite to use modern exception syntax
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25196
diff changeset
169 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
170 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
171 raise
98b6c3dde237 Fix Debian bug #494889 (fetching from static-http://... broken)
Thomas Arendsen Hein <thomas@intevation.de>
parents: 6312
diff changeset
172 # 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
173 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
174 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
175
39694
6192980553b4 statichttprepo: use new functions for requirements validation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39549
diff changeset
176 supportedrequirements = localrepo.gathersupportedrequirements(ui)
6192980553b4 statichttprepo: use new functions for requirements validation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39549
diff changeset
177 localrepo.ensurerequirementsrecognized(requirements,
6192980553b4 statichttprepo: use new functions for requirements validation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39549
diff changeset
178 supportedrequirements)
39695
cb2dcfa5cade localrepo: move requirements reasonability testing to own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39694
diff changeset
179 localrepo.ensurerequirementscompatible(ui, requirements)
39694
6192980553b4 statichttprepo: use new functions for requirements validation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39549
diff changeset
180
3851
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Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3794
diff changeset
181 # setup store
39698
f44187605315 localrepo: move store() from store module
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39695
diff changeset
182 self.store = localrepo.makestore(requirements, self.path, vfsclass)
6897
faea0d27e38f statichttp: use store class
Matt Mackall <mpm@selenic.com>
parents: 6840
diff changeset
183 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
184 self.svfs = self.store.opener
6897
faea0d27e38f statichttp: use store class
Matt Mackall <mpm@selenic.com>
parents: 6840
diff changeset
185 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
186 self._filecache = {}
17192
1ac628cd7113 peer: introduce real peer classes
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 17156
diff changeset
187 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
188
39763
5ccd791344f3 localrepo: pass root manifest into manifestlog.__init__
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39698
diff changeset
189 rootmanifest = manifest.manifestrevlog(self.svfs)
5ccd791344f3 localrepo: pass root manifest into manifestlog.__init__
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39698
diff changeset
190 self.manifestlog = manifest.manifestlog(self.svfs, self, rootmanifest)
23878
37a92908a382 localrepo: remove all external users of localrepo.sopener
Angel Ezquerra <angel.ezquerra@gmail.com>
parents: 23877
diff changeset
191 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
192 self._tags = None
1101
2cf5c8a4eae5 Separate out old-http support
mpm@selenic.com
parents:
diff changeset
193 self.nodetagscache = None
18189
b9026ba002f6 branchmap: enable caching for filtered version too
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 18125
diff changeset
194 self._branchcaches = {}
24373
59cc09240afb revbranchcache: move out of branchmap onto localrepo
Durham Goode <durham@fb.com>
parents: 23878
diff changeset
195 self._revbranchcache = None
1598
14d1f1868bf6 cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1325
diff changeset
196 self.encodepats = None
14d1f1868bf6 cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1325
diff changeset
197 self.decodepats = None
24377
656f93ce66d5 revbranchcache: move cache writing to the transaction finalizer
Durham Goode <durham@fb.com>
parents: 24373
diff changeset
198 self._transref = None
17192
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 17156
diff changeset
199
1ac628cd7113 peer: introduce real peer classes
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 17156
diff changeset
200 def _restrictcapabilities(self, caps):
20962
af4158b8876b statichttp: respect localrepo _restrictcapabilities
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20055
diff changeset
201 caps = super(statichttprepository, self)._restrictcapabilities(caps)
17192
1ac628cd7113 peer: introduce real peer classes
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 17156
diff changeset
202 return caps.difference(["pushkey"])
1101
2cf5c8a4eae5 Separate out old-http support
mpm@selenic.com
parents:
diff changeset
203
2673
109a22f5434a hooks: add url to changegroup, incoming, prechangegroup, pretxnchangegroup hooks
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2072
diff changeset
204 def url(self):
7211
25c0dee16ee0 Autodetect static-http
Matt Mackall <mpm@selenic.com>
parents: 7179
diff changeset
205 return self._url
2673
109a22f5434a hooks: add url to changegroup, incoming, prechangegroup, pretxnchangegroup hooks
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2072
diff changeset
206
1101
2cf5c8a4eae5 Separate out old-http support
mpm@selenic.com
parents:
diff changeset
207 def local(self):
2cf5c8a4eae5 Separate out old-http support
mpm@selenic.com
parents:
diff changeset
208 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
209
17192
1ac628cd7113 peer: introduce real peer classes
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 17156
diff changeset
210 def peer(self):
1ac628cd7113 peer: introduce real peer classes
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 17156
diff changeset
211 return statichttppeer(self)
1ac628cd7113 peer: introduce real peer classes
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 17156
diff changeset
212
33604
8b00c723cee1 statichttprepo: implement wlock() (issue5613)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 33533
diff changeset
213 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
214 raise error.LockUnavailable(0, _('lock not available'), 'lock',
33604
8b00c723cee1 statichttprepo: implement wlock() (issue5613)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 33533
diff changeset
215 _('cannot lock static-http repository'))
8b00c723cee1 statichttprepo: implement wlock() (issue5613)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 33533
diff changeset
216
7005
7739b61897df do not pretend to lock static-http repositories (issue994)
Martin Geisler <mg@daimi.au.dk>
parents: 6988
diff changeset
217 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
218 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
219
29738
c1696430254f statichttprepo: do not try to write caches
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 28883
diff changeset
220 def _writecaches(self):
c1696430254f statichttprepo: do not try to write caches
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 28883
diff changeset
221 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
222
39549
089fc0db0954 hg: allow extra arguments to be passed to repo creation (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37717
diff changeset
223 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
224 if create:
26587
56b2bcea2529 error: get Abort from 'error' instead of 'util'
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 25978
diff changeset
225 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
226 return statichttprepository(ui, path[7:])