mercurial/statichttprepo.py
author Yuya Nishihara <yuya@tcha.org>
Thu, 03 May 2018 18:15:43 +0900
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child 39549 089fc0db0954
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extensions: extract closure that looks for commands from disabled module I'll rewrite this function to not load disabled extensions.
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# statichttprepo.py - simple http repository class for mercurial
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#
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# This provides read-only repo access to repositories exported via static http
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#
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# Copyright 2005-2007 Matt Mackall <mpm@selenic.com>
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#
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# This software may be used and distributed according to the terms of the
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# GNU General Public License version 2 or any later version.
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from __future__ import absolute_import
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import errno
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from .i18n import _
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from . import (
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    changelog,
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    error,
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    localrepo,
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    manifest,
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    namespaces,
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    pathutil,
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    scmutil,
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    store,
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    url,
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    util,
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    vfs as vfsmod,
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)
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urlerr = util.urlerr
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urlreq = util.urlreq
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class httprangereader(object):
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    def __init__(self, url, opener):
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        # we assume opener has HTTPRangeHandler
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        self.url = url
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        self.pos = 0
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        self.opener = opener
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        self.name = url
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    def __enter__(self):
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        return self
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    def __exit__(self, exc_type, exc_value, traceback):
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        self.close()
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    def seek(self, pos):
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        self.pos = pos
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    def read(self, bytes=None):
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        req = urlreq.request(self.url)
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        end = ''
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        if bytes:
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            end = self.pos + bytes - 1
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        if self.pos or end:
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            req.add_header('Range', 'bytes=%d-%s' % (self.pos, end))
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        try:
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            f = self.opener.open(req)
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            data = f.read()
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            code = f.code
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        except urlerr.httperror as inst:
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            num = inst.code == 404 and errno.ENOENT or None
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            raise IOError(num, inst)
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        except urlerr.urlerror as inst:
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            raise IOError(None, inst.reason[1])
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        if code == 200:
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            # HTTPRangeHandler does nothing if remote does not support
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            # Range headers and returns the full entity. Let's slice it.
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            if bytes:
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                data = data[self.pos:self.pos + bytes]
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            else:
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                data = data[self.pos:]
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        elif bytes:
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            data = data[:bytes]
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        self.pos += len(data)
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        return data
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    def readlines(self):
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        return self.read().splitlines(True)
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    def __iter__(self):
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        return iter(self.readlines())
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    def close(self):
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        pass
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# _RangeError and _HTTPRangeHandler were originally in byterange.py,
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# which was itself extracted from urlgrabber. See the last version of
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# byterange.py from history if you need more information.
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class _RangeError(IOError):
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    """Error raised when an unsatisfiable range is requested."""
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class _HTTPRangeHandler(urlreq.basehandler):
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    """Handler that enables HTTP Range headers.
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    This was extremely simple. The Range header is a HTTP feature to
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    begin with so all this class does is tell urllib2 that the
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    "206 Partial Content" response from the HTTP server is what we
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    expected.
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    """
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    def http_error_206(self, req, fp, code, msg, hdrs):
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        # 206 Partial Content Response
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        r = urlreq.addinfourl(fp, hdrs, req.get_full_url())
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        r.code = code
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        r.msg = msg
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        return r
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    def http_error_416(self, req, fp, code, msg, hdrs):
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        # HTTP's Range Not Satisfiable error
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        raise _RangeError('Requested Range Not Satisfiable')
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def build_opener(ui, authinfo):
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    # urllib cannot handle URLs with embedded user or passwd
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    urlopener = url.opener(ui, authinfo)
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    urlopener.add_handler(_HTTPRangeHandler())
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    class statichttpvfs(vfsmod.abstractvfs):
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        def __init__(self, base):
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            self.base = base
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   119
        def __call__(self, path, mode='r', *args, **kw):
13533
b4f5f76386f2 statichttprepo: abort if opener mode is 'r+' or 'rb+'
Adrian Buehlmann <adrian@cadifra.com>
parents: 13447
diff changeset
   120
            if mode not in ('r', 'rb'):
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Nicolas Dumazet <nicdumz.commits@gmail.com>
parents: 10263
diff changeset
   121
                raise IOError('Permission denied')
28883
032c4c2f802a pycompat: switch to util.urlreq/util.urlerr for py3 compat
timeless <timeless@mozdev.org>
parents: 27705
diff changeset
   122
            f = "/".join((self.base, urlreq.quote(path)))
7274
95f3694cc5a4 statichttprepo: cleanups, use url.py (proxy, password support)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7211
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)
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FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 17649
diff changeset
   128
            else:
ffd589d4b785 vfs: define "join()" in each classes derived from "abstractvfs"
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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
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parents:
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   132
17192
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 17156
diff changeset
   133
class statichttppeer(localrepo.localpeer):
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parents: 17156
diff changeset
   134
    def local(self):
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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
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 17156
diff changeset
   138
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   139
class statichttprepository(localrepo.localrepository):
19778
55ef79031009 localrepo: make supported features manageable in each repositories individually
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 18915
diff changeset
   140
    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
   141
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parents:
diff changeset
   142
    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
   143
        self._url = path
1101
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parents:
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   144
        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
   145
11066
26abd91d9e84 static-http: mimic more closely localrepo (issue2164: allow clone -r )
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents: 10263
diff changeset
   146
        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
   147
        u = util.url(path.rstrip('/') + "/.hg")
13819
d16894e29f91 httprepo/sshrepo: use url.url
Brodie Rao <brodie@bitheap.org>
parents: 13533
diff changeset
   148
        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
   149
31147
e04ab2a5bf90 statichttp: use 'repo.vfs' as the main attribute
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 30219
diff changeset
   150
        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
   151
        self.vfs = vfsclass(self.path)
33533
4133c0b0fcd7 cachevfs: add a vfs dedicated to cache
Boris Feld <boris.feld@octobus.net>
parents: 33389
diff changeset
   152
        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
   153
        self._phasedefaults = []
6028
6605a03cbf87 make static-http work with empty repos (issue965)
Dirkjan Ochtman <dirkjan@ochtman.nl>
parents: 5321
diff changeset
   154
23561
3c2419e07df5 namespaces: remove weakref; always pass in repo
Ryan McElroy <rmcelroy@fb.com>
parents: 23558
diff changeset
   155
        self.names = namespaces.namespaces()
32730
b8ff7d0ff361 localrepo: move filtername to __init__
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31241
diff changeset
   156
        self.filtername = None
23558
3198aac7a95d namespaces: add bookmarks to the names data structure
Sean Farley <sean.michael.farley@gmail.com>
parents: 23552
diff changeset
   157
3851
8f18e31c4441 add "requires" file to the repo, specifying the requirements
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3794
diff changeset
   158
        try:
23877
7cc77030c557 localrepo: remove all external users of localrepo.opener
Angel Ezquerra <angel.ezquerra@gmail.com>
parents: 23561
diff changeset
   159
            requirements = scmutil.readrequires(self.vfs, self.supported)
25660
328739ea70c3 global: mass rewrite to use modern exception syntax
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25196
diff changeset
   160
        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
   161
            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
   162
                raise
14482
58b36e9ea783 introduce new function scmutil.readrequires
Adrian Buehlmann <adrian@cadifra.com>
parents: 14168
diff changeset
   163
            requirements = set()
58b36e9ea783 introduce new function scmutil.readrequires
Adrian Buehlmann <adrian@cadifra.com>
parents: 14168
diff changeset
   164
7178
98b6c3dde237 Fix Debian bug #494889 (fetching from static-http://... broken)
Thomas Arendsen Hein <thomas@intevation.de>
parents: 6312
diff changeset
   165
            # 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
   166
            try:
23877
7cc77030c557 localrepo: remove all external users of localrepo.opener
Angel Ezquerra <angel.ezquerra@gmail.com>
parents: 23561
diff changeset
   167
                fp = self.vfs("00changelog.i")
13400
14f3795a5ed7 explicitly close files
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 13253
diff changeset
   168
                fp.read(1)
14f3795a5ed7 explicitly close files
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 13253
diff changeset
   169
                fp.close()
25660
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Gregory Szorc <gregory.szorc@gmail.com>
parents: 25196
diff changeset
   170
            except IOError as inst:
7178
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Thomas Arendsen Hein <thomas@intevation.de>
parents: 6312
diff changeset
   171
                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
   172
                    raise
98b6c3dde237 Fix Debian bug #494889 (fetching from static-http://... broken)
Thomas Arendsen Hein <thomas@intevation.de>
parents: 6312
diff changeset
   173
                # 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
   174
                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
   175
                raise error.RepoError(msg)
3851
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Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3794
diff changeset
   176
8f18e31c4441 add "requires" file to the repo, specifying the requirements
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3794
diff changeset
   177
        # setup store
31147
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Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 30219
diff changeset
   178
        self.store = store.store(requirements, self.path, vfsclass)
6897
faea0d27e38f statichttp: use store class
Matt Mackall <mpm@selenic.com>
parents: 6840
diff changeset
   179
        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
   180
        self.svfs = self.store.opener
6897
faea0d27e38f statichttp: use store class
Matt Mackall <mpm@selenic.com>
parents: 6840
diff changeset
   181
        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
   182
        self._filecache = {}
17192
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 17156
diff changeset
   183
        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
   184
30219
3c8811efdddc manifest: make manifestlog a storecache
Durham Goode <durham@fb.com>
parents: 29738
diff changeset
   185
        self.manifestlog = manifest.manifestlog(self.svfs, self)
23878
37a92908a382 localrepo: remove all external users of localrepo.sopener
Angel Ezquerra <angel.ezquerra@gmail.com>
parents: 23877
diff changeset
   186
        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
   187
        self._tags = None
1101
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mpm@selenic.com
parents:
diff changeset
   188
        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
   189
        self._branchcaches = {}
24373
59cc09240afb revbranchcache: move out of branchmap onto localrepo
Durham Goode <durham@fb.com>
parents: 23878
diff changeset
   190
        self._revbranchcache = None
1598
14d1f1868bf6 cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1325
diff changeset
   191
        self.encodepats = None
14d1f1868bf6 cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1325
diff changeset
   192
        self.decodepats = None
24377
656f93ce66d5 revbranchcache: move cache writing to the transaction finalizer
Durham Goode <durham@fb.com>
parents: 24373
diff changeset
   193
        self._transref = None
17192
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 17156
diff changeset
   194
1ac628cd7113 peer: introduce real peer classes
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parents: 17156
diff changeset
   195
    def _restrictcapabilities(self, caps):
20962
af4158b8876b statichttp: respect localrepo _restrictcapabilities
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20055
diff changeset
   196
        caps = super(statichttprepository, self)._restrictcapabilities(caps)
17192
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 17156
diff changeset
   197
        return caps.difference(["pushkey"])
1101
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mpm@selenic.com
parents:
diff changeset
   198
2673
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2072
diff changeset
   199
    def url(self):
7211
25c0dee16ee0 Autodetect static-http
Matt Mackall <mpm@selenic.com>
parents: 7179
diff changeset
   200
        return self._url
2673
109a22f5434a hooks: add url to changegroup, incoming, prechangegroup, pretxnchangegroup hooks
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2072
diff changeset
   201
1101
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parents:
diff changeset
   202
    def local(self):
2cf5c8a4eae5 Separate out old-http support
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parents:
diff changeset
   203
        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
   204
17192
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parents: 17156
diff changeset
   205
    def peer(self):
1ac628cd7113 peer: introduce real peer classes
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parents: 17156
diff changeset
   206
        return statichttppeer(self)
1ac628cd7113 peer: introduce real peer classes
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 17156
diff changeset
   207
33604
8b00c723cee1 statichttprepo: implement wlock() (issue5613)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 33533
diff changeset
   208
    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
   209
        raise error.LockUnavailable(0, _('lock not available'), 'lock',
33604
8b00c723cee1 statichttprepo: implement wlock() (issue5613)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 33533
diff changeset
   210
                                    _('cannot lock static-http repository'))
8b00c723cee1 statichttprepo: implement wlock() (issue5613)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 33533
diff changeset
   211
7005
7739b61897df do not pretend to lock static-http repositories (issue994)
Martin Geisler <mg@daimi.au.dk>
parents: 6988
diff changeset
   212
    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
   213
        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
   214
29738
c1696430254f statichttprepo: do not try to write caches
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 28883
diff changeset
   215
    def _writecaches(self):
c1696430254f statichttprepo: do not try to write caches
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 28883
diff changeset
   216
        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
   217
37717
0664be4f0c1f hg: pass command intents to repo/peer creation (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36657
diff changeset
   218
def instance(ui, path, create, intents=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
   219
    if create:
26587
56b2bcea2529 error: get Abort from 'error' instead of 'util'
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 25978
diff changeset
   220
        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
   221
    return statichttprepository(ui, path[7:])