view hgweb.cgi @ 41885:5baf06d2bb41

discovery: cache the children mapping used during each discovery

During discovery, the `undecided` set keep shrinking. Therefore, the map
computed for an iteration N will be valid for iteration N+1. Instead of
computing the same data over and over we cache it the first time.

Our private pathological case speed up from about 7.5 seconds to about 6.3
seconds.

(starting from over 70s at the start of the full series)

#!/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)