dirstate: add a C implementation for nonnormalentries
Before this patch, there was only a python version of nonnormalentries.
On mozilla-central we have a 10x win by putting this function in C:
% python -m timeit -s \
'from mercurial import hg, ui, parsers; \
repo = hg.repository(ui.ui(), "mozilla-central"); \
m = repo.dirstate._map' \
'parsers.nonnormalentries(m)'
100 loops, best of 3: 3.15 msec per loop
The python implementation runs in 31ms, a similar test gives:
10 loops, best of 3: 31.7 msec per loop
On our big repos, the win is still of 10x with the python implementation running
in 350ms and the C implementation running in 30ms.
# RelaxNG schema for "xml" log style
# Inspired by Subversion's XML log format.
start = log
node.type = xsd:string {minLength = "40" maxLength = "40"}
log = element log { logentry+ }
logentry = element logentry {
logentry.attlist,
branch*, tag*, hgparent*,
author, date,
msg, paths?, copies?, extra*
}
logentry.attlist =
attribute revision {xsd:nonNegativeInteger}
& attribute node {node.type}
branch = element branch { text }
tag = element tag { text }
hgparent = element parent {hgparent.attlist, text}
hgparent.attlist =
attribute revision {xsd:integer {minInclusive = "-1"} }
& attribute node {node.type}
author = element author { author.attlist, text }
author.attlist =
attribute email {text}
date = element date {xsd:dateTime}
msg = element msg {msg.attlist, text}
msg.attlist =
attribute xml:space {"preserve"}
paths = element paths { path* }
path = element path { path.attlist, text }
path.attlist =
# Action: (A)dd, (M)odify, (R)emove
attribute action {"A"|"M"|"R"}
copies = element copies { copy+ }
copy = element copy { copy.attlist, text }
copy.attlist =
attribute source {text}
extra = element extra {extra.attlist, text}
extra.attlist =
attribute key {text}