/usr/lib/python2.7/dist-packages/mercurial/statichttprepo.py is in mercurial-common 2.8.2-1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 | # 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 version 2 or any later version.
from i18n import _
import changelog, byterange, url, error
import localrepo, manifest, util, scmutil, store
import urllib, urllib2, errno, os
class httprangereader(object):
def __init__(self, url, opener):
# we assume opener has HTTPRangeHandler
self.url = url
self.pos = 0
self.opener = opener
self.name = url
def seek(self, pos):
self.pos = pos
def read(self, bytes=None):
req = urllib2.Request(self.url)
end = ''
if bytes:
end = self.pos + bytes - 1
if self.pos or end:
req.add_header('Range', 'bytes=%d-%s' % (self.pos, end))
try:
f = self.opener.open(req)
data = f.read()
# Python 2.6+ defines a getcode() function, and 2.4 and
# 2.5 appear to always have an undocumented code attribute
# set. If we can't read either of those, fall back to 206
# and hope for the best.
code = getattr(f, 'getcode', lambda : getattr(f, 'code', 206))()
except urllib2.HTTPError, inst:
num = inst.code == 404 and errno.ENOENT or None
raise IOError(num, inst)
except urllib2.URLError, inst:
raise IOError(None, inst.reason[1])
if code == 200:
# HTTPRangeHandler does nothing if remote does not support
# Range headers and returns the full entity. Let's slice it.
if bytes:
data = data[self.pos:self.pos + bytes]
else:
data = data[self.pos:]
elif bytes:
data = data[:bytes]
self.pos += len(data)
return data
def __iter__(self):
return iter(self.read().splitlines(1))
def close(self):
pass
def build_opener(ui, authinfo):
# urllib cannot handle URLs with embedded user or passwd
urlopener = url.opener(ui, authinfo)
urlopener.add_handler(byterange.HTTPRangeHandler())
class statichttpvfs(scmutil.abstractvfs):
def __init__(self, base):
self.base = base
def __call__(self, path, mode="r", atomictemp=None):
if mode not in ('r', 'rb'):
raise IOError('Permission denied')
f = "/".join((self.base, urllib.quote(path)))
return httprangereader(f, urlopener)
def join(self, path):
if path:
return os.path.join(self.base, path)
else:
return self.base
return statichttpvfs
class statichttppeer(localrepo.localpeer):
def local(self):
return None
def canpush(self):
return False
class statichttprepository(localrepo.localrepository):
supported = localrepo.localrepository._basesupported
def __init__(self, ui, path):
self._url = path
self.ui = ui
self.root = path
u = util.url(path.rstrip('/') + "/.hg")
self.path, authinfo = u.authinfo()
opener = build_opener(ui, authinfo)
self.opener = opener(self.path)
self.vfs = self.opener
self._phasedefaults = []
try:
requirements = scmutil.readrequires(self.opener, self.supported)
except IOError, inst:
if inst.errno != errno.ENOENT:
raise
requirements = set()
# check if it is a non-empty old-style repository
try:
fp = self.opener("00changelog.i")
fp.read(1)
fp.close()
except IOError, inst:
if inst.errno != errno.ENOENT:
raise
# we do not care about empty old-style repositories here
msg = _("'%s' does not appear to be an hg repository") % path
raise error.RepoError(msg)
# setup store
self.store = store.store(requirements, self.path, opener)
self.spath = self.store.path
self.sopener = self.store.opener
self.svfs = self.sopener
self.sjoin = self.store.join
self._filecache = {}
self.requirements = requirements
self.manifest = manifest.manifest(self.sopener)
self.changelog = changelog.changelog(self.sopener)
self._tags = None
self.nodetagscache = None
self._branchcaches = {}
self.encodepats = None
self.decodepats = None
def _restrictcapabilities(self, caps):
return caps.difference(["pushkey"])
def url(self):
return self._url
def local(self):
return False
def peer(self):
return statichttppeer(self)
def lock(self, wait=True):
raise util.Abort(_('cannot lock static-http repository'))
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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