view hgweb.cgi @ 37850:04ceb267271a

bookmarks: cache reverse mapping (issue5868)

I chose a simpler implementation. If the initial cost of building reverse
mapping is significant, we'll have to move it under @propertycache.

The nodemap could be a dict of sets, but I think keeping a sorted list is
better since each node is likely to have zero/one bookmark.

Micro-benchmark with 1001 bookmarks and 1001 revisions:

  $ for n in `seq 0 1000`; do touch $n; hg book book$n; hg ci -qAm$n; done
  $ hg bookmarks --time > /dev/null
  (orig) time: real 0.040 secs (user 0.050+0.000 sys 0.000+0.000)
  (new)  time: real 0.040 secs (user 0.040+0.000 sys 0.010+0.000)
  $ hg log -T '{bookmarks}\n' --time > /dev/null
  (orig) time: real 0.160 secs (user 0.160+0.000 sys 0.000+0.000)
  (new)  time: real 0.090 secs (user 0.100+0.000 sys 0.000+0.000)

#!/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)