localrepository.status: only acquire wlock if actually needed.
This speeds up the common case of not needing to update the dirstate,
and avoids the need to reload and parse the dirstate "just in case".
# this is copied from the lsprof distro because somehow
# it is not installed by distutils
#
# small modifications made
import sys
try:
from _lsprof import Profiler, profiler_entry, profiler_subentry
except ImportError, inst:
import packagescan
if packagescan.scan_in_progress:
raise packagescan.SkipPackage('_lsprof not available')
raise
__all__ = ['profile', 'Stats']
def profile(f, *args, **kwds):
"""XXX docstring"""
p = Profiler()
p.enable(subcalls=True)
try:
ret = f(*args, **kwds)
finally:
p.disable()
return ret, Stats(p.getstats())
class Stats(object):
"""XXX docstring"""
def __init__(self, data):
self.data = data
def sort(self, crit="inlinetime"):
"""XXX docstring"""
if crit not in profiler_entry.__dict__:
raise ValueError, "Can't sort by %s" % crit
self.data.sort(lambda b, a: cmp(getattr(a, crit),
getattr(b, crit)))
for e in self.data:
if e.calls:
e.calls.sort(lambda b, a: cmp(getattr(a, crit),
getattr(b, crit)))
def pprint(self, top=None, file=None, limit=None, climit=None):
"""XXX docstring"""
if file is None:
file = sys.stdout
d = self.data
if top is not None:
d = d[:top]
cols = "% 12s %11.4f %11.4f %s\n"
hcols = "% 12s %12s %12s %s\n"
cols2 = "+%12s %11.4f %11.4f + %s\n"
file.write(hcols % ("CallCount", "Total(s)",
"Inline(s)", "module:lineno(function)"))
count = 0
for e in d:
file.write(cols % (e.callcount, e.totaltime,
e.inlinetime, label(e.code)))
count += 1
if limit is not None and count == limit:
return
ccount = 0
if e.calls:
for se in e.calls:
file.write(cols % ("+%s" % se.callcount,
se.totaltime, se.inlinetime,
"+%s" % label(se.code)))
count += 1
ccount += 1
if limit is not None and count == limit:
return
if climit is not None and ccount == climit:
break
def freeze(self):
"""Replace all references to code objects with string
descriptions; this makes it possible to pickle the instance."""
# this code is probably rather ickier than it needs to be!
for i in range(len(self.data)):
e = self.data[i]
if not isinstance(e.code, str):
self.data[i] = type(e)((label(e.code),) + e[1:])
if e.calls:
for j in range(len(e.calls)):
se = e.calls[j]
if not isinstance(se.code, str):
e.calls[j] = type(se)((label(se.code),) + se[1:])
_fn2mod = {}
def label(code):
if isinstance(code, str):
return code
try:
mname = _fn2mod[code.co_filename]
except KeyError:
for k, v in sys.modules.iteritems():
if v is None:
continue
if not hasattr(v, '__file__'):
continue
if not isinstance(v.__file__, str):
continue
if v.__file__.startswith(code.co_filename):
mname = _fn2mod[code.co_filename] = k
break
else:
mname = _fn2mod[code.co_filename] = '<%s>'%code.co_filename
return '%s:%d(%s)' % (mname, code.co_firstlineno, code.co_name)
if __name__ == '__main__':
import os
sys.argv = sys.argv[1:]
if not sys.argv:
print >> sys.stderr, "usage: lsprof.py <script> <arguments...>"
sys.exit(2)
sys.path.insert(0, os.path.abspath(os.path.dirname(sys.argv[0])))
stats = profile(execfile, sys.argv[0], globals(), locals())
stats.sort()
stats.pprint()