http client: support persistent connections.
uses keepalive module from urlgrabber package. tested against "hg serve",
cgi server, and through http proxy. used ethereal to verify that only
one tcp connection used during entire "hg pull" sequence.
if server supports keepalive, this makes latency of "hg pull" much lower.
# statichttprepo.py - simple http repository class for mercurial
#
# This provides read-only repo access to repositories exported via static http
#
# Copyright 2005 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 demandload import demandload
demandload(globals(), "changelog filelog httprangereader")
demandload(globals(), "localrepo manifest os urllib urllib2")
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 = os.path.join(p, urllib.quote(path))
return rangereader(f)
return o
class statichttprepository(localrepo.localrepository):
def __init__(self, ui, path):
self.path = (path + "/.hg")
self.ui = ui
self.revlogversion = 0
self.opener = opener(self.path)
self.manifest = manifest.manifest(self.opener)
self.changelog = changelog.changelog(self.opener)
self.tagscache = None
self.nodetagscache = None
self.encodepats = None
self.decodepats = None
def dev(self):
return -1
def local(self):
return False