view contrib/tmplrewrite.py @ 14087:f3d585c9b042

graphmod: restore generator nature of dagwalker

9966c95b8c4f introduced the ability to walk the DAG
given arbitrary revisions, but changed the behaviour of
it to return a list of all nodes (and create a changectx
for each one) rather than doing it lazily.

This has a pretty significant impact on performance for large
repositories (tested on CPython repo, with output disabled):

  $ time hg glog

  real	0m2.642s
  user	0m2.560s
  sys	0m0.080s

Before 9966c95b8c4f:

  $ time hg glog

  real	0m0.143s
  user	0m0.112s
  sys	0m0.032s

And after this fix:

  $ time hg glog

  real	0m0.213s
  user	0m0.184s
  sys	0m0.028s

#!/usr/bin/python
import sys, os, re

IGNORE = ['.css', '.py']
oldre = re.compile('#([\w\|%]+)#')

def rewrite(fn):
    f = open(fn)
    new = open(fn + '.new', 'wb')
    for ln in f:
        new.write(oldre.sub('{\\1}', ln))
    new.close()
    f.close()
    os.rename(new.name, f.name)

if __name__ == '__main__':
    if len(sys.argv) < 2:
        print 'usage: python tmplrewrite.py [file [file [file]]]'
    for fn in sys.argv[1:]:
        if os.path.splitext(fn) in IGNORE:
            continue
        print 'rewriting %s...' % fn
        rewrite(fn)