1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
# logger.py - A simple logging helper class
#
# Copyright (C) 2010, Benjamin Drung <bdrung@debian.org>
#
# Permission to use, copy, modify, and/or distribute this software
# for any purpose with or without fee is hereby granted, provided
# that the above copyright notice and this permission notice appear
# in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
# WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
# AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR
# CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
# LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
# NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
# CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
import os
import sys
def escape_arg(arg):
"""Shell-escape arg, if necessary.
Fairly simplistic, doesn't escape anything except whitespace.
"""
if " " not in arg:
return arg
return '"%s"' % arg.replace("\\", r"\\").replace('"', r"\"")
class Logger:
script_name = os.path.basename(sys.argv[0])
verbose = False
stdout = sys.stdout
stderr = sys.stderr
@classmethod
def _print(cls, format_, message, args=None, stderr=False):
if args:
message = message % args
stream = cls.stderr if stderr else cls.stdout
stream.write((format_ + "\n") % (cls.script_name, message))
@classmethod
def command(cls, cmd):
if cls.verbose:
cls._print("%s: I: %s", " ".join(escape_arg(arg) for arg in cmd))
@classmethod
def debug(cls, message, *args):
if cls.verbose:
cls._print("%s: D: %s", message, args, stderr=True)
@classmethod
def error(cls, message, *args):
cls._print("%s: Error: %s", message, args, stderr=True)
@classmethod
def warn(cls, message, *args):
cls._print("%s: Warning: %s", message, args, stderr=True)
@classmethod
def info(cls, message, *args):
if cls.verbose:
cls._print("%s: I: %s", message, args)
@classmethod
def normal(cls, message, *args):
cls._print("%s: %s", message, args)
@classmethod
def set_verbosity(cls, verbose):
cls.verbose = verbose
|
