revset: changed ancestors revset to return lazy generators
This will not improve revsets like "::tip" but will do when that gets
intersected or substracted with another revset.
Performance Benchmarking:
$ time hg log -qr "draft() and ::tip"
...
real 0m3.961s
user 0m3.640s
sys 0m0.313s
$ time ./hg log -qr "draft() and ::tip"
...
real 0m1.080s
user 0m0.987s
sys 0m0.083s
#!/usr/bin/env python
#
# An example hgweb CGI script, edit as necessary
# See also http://mercurial.selenic.com/wiki/PublishingRepositories
# Path to repo or hgweb config to serve (see 'hg help hgweb')
config = "/path/to/repo/or/config"
# Uncomment and adjust if Mercurial is not installed system-wide
# (consult "installed modules" path from 'hg debuginstall'):
#import sys; sys.path.insert(0, "/path/to/python/lib")
# Uncomment to send python tracebacks to the browser if an error occurs:
#import cgitb; cgitb.enable()
from mercurial import demandimport; demandimport.enable()
from mercurial.hgweb import hgweb, wsgicgi
application = hgweb(config)
wsgicgi.launch(application)