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cli.py
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148 lines (119 loc) · 3.66 KB
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from __future__ import print_function
import argparse
from six.moves import configparser
def build_argparser():
parser = argparse.ArgumentParser(
description='VMprof',
prog="vmprof"
)
parser.add_argument(
'program',
help='program'
)
parser.add_argument(
'args',
nargs=argparse.REMAINDER,
help='program arguments'
)
parser.add_argument(
'--config',
type=argparse.FileType('r'),
)
parser.add_argument(
'--period', '-p',
type=float,
default=0.001,
help='Sampling period (in microseconds)'
)
parser.add_argument(
'--web-auth',
help='Authtoken for your acount on the server, works only when --web is used'
)
parser.add_argument(
'--web-url',
metavar='url',
default='http://vmprof.com',
help='Provide URL instead of the default vmprof.com)'
)
parser.add_argument(
'--enable-nonvirtual', '-n',
action='store_true',
help='Report native calls'
)
output_mode_args = parser.add_mutually_exclusive_group()
output_mode_args.add_argument(
'--web',
action='store_true',
help='Upload profiling stats to a remote server (defaults to vmprof.com)'
)
output_mode_args.add_argument(
'--output', '-o',
metavar='file.prof',
type=argparse.FileType('w+b'),
help='Save profiling data to file'
)
return parser
def parse_args(argv):
parser = build_argparser()
args = parser.parse_args(argv)
if args.config:
ini_options = [
('period', float),
('web', str),
('web-auth', str),
('web-url', str),
('output', str)
]
ini_parser = IniParser(args.config)
for name, type in ini_options:
argname = name.replace("-", "_")
default = parser.get_default(argname)
current = getattr(args, argname, default)
if current == default:
value = ini_parser.get_option(name, type, default)
setattr(args, argname, value)
return args
class IniParser(object):
def __init__(self, f):
self.ini_parser = configparser.ConfigParser()
self.ini_parser.readfp(f)
def get_option(self, name, type, default=None):
if type == float:
try:
return self.ini_parser.getfloat('global', name)
except configparser.NoOptionError:
return default
elif type == bool:
try:
return self.ini_parser.getboolean('global', name)
except configparser.NoOptionError:
return default
try:
return self.ini_parser.get('global', name)
except configparser.NoOptionError:
return default
def show(stats):
p = stats.top_profile()
if not p:
print("no stats")
return
p.sort(key=lambda x: x[1], reverse=True)
top = p[0][1]
max_len = max([_namelen(e[0]) for e in p])
print(" vmprof output:")
print(" %: name:" + " " * (max_len - 3) + "location:")
for k, v in p:
v = "%.1f%%" % (float(v) / top * 100)
if v == '0.0%':
v = '<0.1%'
if k.startswith('py:'):
_, func_name, lineno, filename = k.split(":", 3)
lineno = int(lineno)
print(" %s %s %s:%d" % (v.ljust(7), func_name.ljust(max_len + 1), filename, lineno))
else:
print(" %s %s" % (v.ljust(7), k.ljust(max_len + 1)))
def _namelen(e):
if e.startswith('py:'):
return len(e.split(':')[1])
else:
return len(e)