add support for streaming clone.
existing clone code uses pull to get changes from remote repo. is very
slow, uses lots of memory and cpu.
new clone code has server write file data straight to client, client
writes file data straight to disk. memory and cpu used are very low,
clone is much faster over lan.
new client can still clone with pull, can still clone from older servers.
new server can still serve older clients.
# hgweb/common.py - Utility functions needed by hgweb_mod and hgwebdir_mod
#
# Copyright 21 May 2005 - (c) 2005 Jake Edge <jake@edge2.net>
# 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.
import os, mimetypes
import os.path
def get_mtime(repo_path):
hg_path = os.path.join(repo_path, ".hg")
cl_path = os.path.join(hg_path, "00changelog.i")
if os.path.exists(os.path.join(cl_path)):
return os.stat(cl_path).st_mtime
else:
return os.stat(hg_path).st_mtime
def staticfile(directory, fname, req):
"""return a file inside directory with guessed content-type header
fname always uses '/' as directory separator and isn't allowed to
contain unusual path components.
Content-type is guessed using the mimetypes module.
Return an empty string if fname is illegal or file not found.
"""
parts = fname.split('/')
path = directory
for part in parts:
if (part in ('', os.curdir, os.pardir) or
os.sep in part or os.altsep is not None and os.altsep in part):
return ""
path = os.path.join(path, part)
try:
os.stat(path)
ct = mimetypes.guess_type(path)[0] or "text/plain"
req.header([('Content-type', ct),
('Content-length', os.path.getsize(path))])
return file(path).read()
except (TypeError, OSError):
# illegal fname or unreadable file
return ""