manifest: use custom C implementation of lazymanifest
This version is actually lazy, unlike the pure-python version. The
latter could stand to be optimized if anyone actually wants to use it
seriously. I put no work into it.
Before any of my related changes on mozilla-central:
perfmanifest tip
! wall 0.268805 comb 0.260000 user 0.260000 sys 0.000000 (best of 37)
perftags
! result: 162
! wall 0.007099 comb 0.000000 user 0.000000 sys 0.000000 (best of 401)
perfstatus
! wall 0.415680 comb 0.420000 user 0.260000 sys 0.160000 (best of 24)
hgperf export tip
! wall 0.142118 comb 0.140000 user 0.140000 sys 0.000000 (best of 67)
after all of my changes on mozilla-central:
./hg:
perfmanifest tip
! wall 0.232640 comb 0.230000 user 0.220000 sys 0.010000 (best of 43)
perftags
! result: 162
! wall 0.007057 comb 0.010000 user 0.000000 sys 0.010000 (best of 395)
perfstatus
! wall 0.415503 comb 0.420000 user 0.280000 sys 0.140000 (best of 24)
hgperf export tip
! wall 0.025096 comb 0.030000 user 0.030000 sys 0.000000 (best of 102)
so it's no real change in performance on perf{manifest,tags,status},
but is a huge win on 'hgperf export tip'.
There's a little performance work that could still be done here:
fastdelta() could be done significantly more intelligently by using
the internal state of the lazymanifest type in C, but that seems like
good future work.
#!/usr/bin/env python
#
# runrst - register custom roles and run correct writer
#
# Copyright 2010 Matt Mackall <mpm@selenic.com> and others
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
"""usage: %s WRITER args...
where WRITER is the name of a Docutils writer such as 'html' or 'manpage'
"""
import sys
try:
from docutils.parsers.rst import roles
from docutils.core import publish_cmdline
from docutils import nodes, utils
except ImportError:
sys.stderr.write("abort: couldn't generate documentation: docutils "
"module is missing\n")
sys.stderr.write("please install python-docutils or see "
"http://docutils.sourceforge.net/\n")
sys.exit(-1)
def role_hg(name, rawtext, text, lineno, inliner,
options={}, content=[]):
text = "hg " + utils.unescape(text)
linktext = nodes.literal(rawtext, text)
parts = text.split()
cmd, args = parts[1], parts[2:]
if cmd == 'help' and args:
cmd = args[0] # link to 'dates' for 'hg help dates'
node = nodes.reference(rawtext, '', linktext,
refuri="hg.1.html#%s" % cmd)
return [node], []
roles.register_local_role("hg", role_hg)
if __name__ == "__main__":
if len(sys.argv) < 2:
sys.stderr.write(__doc__ % sys.argv[0])
sys.exit(1)
writer = sys.argv[1]
del sys.argv[1]
publish_cmdline(writer_name=writer)