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# statichttprepo.py - simple http repository class for mercurial
#
# This provides read-only repo access to repositories exported via static http
#
# Copyright 2005-2007 Matt Mackall <mpm@selenic.com>
#
# This software may be used and distributed according to the terms
# of the GNU General Public License, incorporated herein by reference.
from i18n import _
import changelog, filelog, httprangereader
import repo, localrepo, manifest, os, urllib, urllib2, util
class rangereader(httprangereader.httprangereader):
def read(self, size=None):
try:
return httprangereader.httprangereader.read(self, size)
except urllib2.HTTPError, inst:
raise IOError(None, inst)
except urllib2.URLError, inst:
raise IOError(None, inst.reason[1])
def opener(base):
"""return a function that opens files over http"""
p = base
def o(path, mode="r"):
f = "/".join((p, urllib.quote(path)))
return rangereader(f)
return o
class statichttprepository(localrepo.localrepository):
def __init__(self, ui, path):
self._url = path
self.ui = ui
self.path = path.rstrip('/') + "/.hg"
self.opener = opener(self.path)
# find requirements
try:
requirements = self.opener("requires").read().splitlines()
except IOError:
requirements = []
# check them
for r in requirements:
if r not in self.supported:
raise repo.RepoError(_("requirement '%s' not supported") % r)
# setup store
if "store" in requirements:
self.encodefn = util.encodefilename
self.decodefn = util.decodefilename
self.spath = self.path + "/store"
else:
self.encodefn = lambda x: x
self.decodefn = lambda x: x
self.spath = self.path
self.sopener = util.encodedopener(opener(self.spath), self.encodefn)
self.manifest = manifest.manifest(self.sopener)
self.changelog = changelog.changelog(self.sopener)
self.tagscache = None
self.nodetagscache = None
self.encodepats = None
self.decodepats = None
def url(self):
return 'static-' + self._url
def dev(self):
return -1
def local(self):
return False
def instance(ui, path, create):
if create:
raise util.Abort(_('cannot create new static-http repository'))
return statichttprepository(ui, path[7:])
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