2005-08-28 03:28:53 +04:00
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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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2007-06-19 10:51:34 +04:00
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# Copyright 2005-2007 Matt Mackall <mpm@selenic.com>
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2005-08-28 03:28:53 +04:00
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#
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2009-04-26 03:08:54 +04:00
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# This software may be used and distributed according to the terms of the
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2010-01-20 07:20:08 +03:00
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# GNU General Public License version 2 or any later version.
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2005-08-28 03:28:53 +04:00
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2006-12-15 05:25:19 +03:00
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from i18n import _
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2009-01-12 19:42:31 +03:00
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import changelog, byterange, url, error
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2011-04-30 21:41:25 +04:00
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import localrepo, manifest, util, scmutil, store
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2008-02-08 13:50:37 +03:00
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import urllib, urllib2, errno
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2005-09-23 11:05:16 +04:00
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2008-10-28 10:26:18 +03:00
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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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2010-04-26 15:13:14 +04:00
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self.name = url
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2008-10-28 10:26:18 +03:00
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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 = urllib2.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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req.add_header('Range', 'bytes=%d-%s' % (self.pos, end))
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2005-09-23 11:05:16 +04:00
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try:
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2008-10-28 10:26:18 +03:00
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f = self.opener.open(req)
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data = f.read()
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2011-07-26 00:47:43 +04:00
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# Python 2.6+ defines a getcode() function, and 2.4 and
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# 2.5 appear to always have an undocumented code attribute
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# set. If we can't read either of those, fall back to 206
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# and hope for the best.
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code = getattr(f, 'getcode', lambda : getattr(f, 'code', 206))()
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2006-03-01 17:29:13 +03:00
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except urllib2.HTTPError, inst:
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2008-02-08 13:50:37 +03:00
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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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2005-09-23 11:05:16 +04:00
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except urllib2.URLError, inst:
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2006-03-01 17:29:13 +03:00
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raise IOError(None, inst.reason[1])
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2005-08-28 03:28:53 +04:00
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2009-05-24 20:31:01 +04:00
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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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2008-10-28 10:26:18 +03:00
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data = data[:bytes]
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2009-05-24 20:31:01 +04:00
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self.pos += len(data)
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2008-10-28 10:26:18 +03:00
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return data
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2010-04-26 15:13:14 +04:00
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def __iter__(self):
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return iter(self.read().splitlines(1))
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def close(self):
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pass
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2008-10-28 10:26:18 +03:00
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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(byterange.HTTPRangeHandler())
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2011-04-30 21:41:25 +04:00
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class statichttpopener(scmutil.abstractopener):
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def __init__(self, base):
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self.base = base
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def __call__(self, path, mode="r", atomictemp=None):
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2011-02-18 03:19:01 +03:00
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if mode not in ('r', 'rb'):
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2010-04-26 15:13:14 +04:00
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raise IOError('Permission denied')
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2011-04-30 21:41:25 +04:00
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f = "/".join((self.base, urllib.quote(path)))
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2008-10-28 10:26:18 +03:00
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return httprangereader(f, urlopener)
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2011-04-30 21:41:25 +04:00
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return statichttpopener
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2005-08-28 03:28:53 +04:00
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class statichttprepository(localrepo.localrepository):
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def __init__(self, ui, path):
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2006-07-26 00:50:32 +04:00
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self._url = path
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2005-08-28 03:28:53 +04:00
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self.ui = ui
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2006-12-01 15:34:09 +03:00
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2010-04-26 15:13:14 +04:00
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self.root = path
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2011-04-30 20:43:20 +04:00
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u = util.url(path.rstrip('/') + "/.hg")
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2011-03-31 07:01:35 +04:00
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self.path, authinfo = u.authinfo()
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2008-10-28 10:26:18 +03:00
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opener = build_opener(ui, authinfo)
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2005-08-28 03:28:53 +04:00
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self.opener = opener(self.path)
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2012-01-18 20:23:54 +04:00
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self._phasedefaults = []
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2008-02-08 13:50:37 +03:00
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2006-12-10 02:06:59 +03:00
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try:
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2011-05-31 21:16:18 +04:00
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requirements = scmutil.readrequires(self.opener, self.supported)
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2008-02-08 13:50:37 +03:00
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except IOError, inst:
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2008-10-19 21:49:56 +04:00
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if inst.errno != errno.ENOENT:
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raise
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2011-05-31 21:16:18 +04:00
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requirements = set()
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2008-10-19 21:49:56 +04:00
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# check if it is a non-empty old-style repository
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try:
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2010-12-24 17:23:01 +03:00
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fp = self.opener("00changelog.i")
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fp.read(1)
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fp.close()
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2008-10-19 21:49:56 +04:00
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except IOError, inst:
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if inst.errno != errno.ENOENT:
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raise
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# we do not care about empty old-style repositories here
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2008-02-08 13:50:37 +03:00
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msg = _("'%s' does not appear to be an hg repository") % path
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2009-01-12 19:42:31 +03:00
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raise error.RepoError(msg)
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2006-12-10 02:06:59 +03:00
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# setup store
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2011-02-16 17:02:30 +03:00
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self.store = store.store(requirements, self.path, opener)
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2008-08-14 05:18:43 +04:00
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self.spath = self.store.path
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self.sopener = self.store.opener
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self.sjoin = self.store.join
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2012-02-15 22:02:35 +04:00
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self._filecache = {}
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2006-12-10 02:06:59 +03:00
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2006-12-05 13:28:23 +03:00
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self.manifest = manifest.manifest(self.sopener)
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self.changelog = changelog.changelog(self.sopener)
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2009-07-16 18:39:41 +04:00
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self._tags = None
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2005-08-28 03:28:53 +04:00
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self.nodetagscache = None
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2010-04-26 15:13:14 +04:00
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self._branchcache = None
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self._branchcachetip = None
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2005-12-27 22:09:49 +03:00
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self.encodepats = None
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self.decodepats = None
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2011-06-03 22:08:26 +04:00
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self.capabilities.difference_update(["pushkey"])
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2005-08-28 03:28:53 +04:00
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2006-07-26 00:50:32 +04:00
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def url(self):
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2008-10-23 00:41:32 +04:00
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return self._url
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2006-07-26 00:50:32 +04:00
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2005-08-28 03:28:53 +04:00
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def local(self):
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return False
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2006-07-31 18:11:12 +04:00
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2008-09-08 13:32:53 +04:00
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def lock(self, wait=True):
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raise util.Abort(_('cannot lock static-http repository'))
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2006-07-31 18:11:12 +04:00
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def instance(ui, path, create):
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if create:
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raise util.Abort(_('cannot create new static-http repository'))
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2007-07-08 11:54:42 +04:00
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return statichttprepository(ui, path[7:])
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