ancestor: use heapreplace() in place of heappop/heappush()
This should be slightly faster.
Overall perfancestors result::
cpython nginx mercurial
------------- ---------------- ---------------- ----------------
b6db2e80a9ce^ 0.103461 0.006303 0.035716
8eb2145ff0fb 0.192307 (x1.86) 0.012115 (x1.92) 0.052135 (x1.46)
this patch 0.139986 (x1.35) 0.006389 (x1.01) 0.037176 (x1.04)
#!/usr/bin/env python
#
# An example hgweb CGI script, edit as necessary
# See also https://mercurial-scm.org/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)