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
76
77
78
79
80
81
82
83
84
85
|
"""Abstraction layer for working outside the Sugar environment"""
import traceback, cStringIO
import logging
log = logging.getLogger( 'olpcgames.util' )
import os
import os.path
NON_SUGAR_ROOT = '~/.sugar/default/olpcgames'
try:
from sugar.activity.activity import get_bundle_path as _get_bundle_path
def get_bundle_path( ):
"""Retrieve bundle path from activity with fix for silly registration bug"""
path = _get_bundle_path()
if path.endswith( '.activity.activity' ):
log.warn( '''Found double .activity suffix in bundle path, truncating: %s''', path )
path = path[:-9]
return path
except ImportError:
log.warn( '''Do not appear to be running under Sugar, stubbing-in get_bundle_path''' )
def get_bundle_path():
"""Retrieve a substitute data-path for non OLPC systems"""
return os.getcwd()
def get_activity_root( ):
"""Return the activity root for data storage operations
If the activity is present, returns the activity's root,
otherwise returns NON_SUGAR_ROOT as the directory.
"""
root = os.environ.get( 'SUGAR_ACTIVITY_ROOT' )
if not root:
root = NON_SUGAR_ROOT
log.debug( 'Activity Root: %s', root )
return os.path.expanduser( root )
def data_path(file_name):
"""Return the full path to a file in the data sub-directory of the bundle"""
dirname = os.path.join(get_bundle_path(), 'data' )
if not os.path.isdir( dirname ):
os.makedirs( dirname )
return os.path.join( dirname, file_name )
def tmp_path(file_name):
"""Return the full path to a file in the temporary directory"""
dirname = os.path.join(get_bundle_path(), 'tmp' )
if not os.path.isdir( dirname ):
os.makedirs( dirname )
return os.path.join(dirname, file_name)
def get_traceback(error):
"""Get formatted traceback from current exception
error -- Exception instance raised
Attempts to produce a 10-level traceback as a string
that you can log off. Use like so:
try:
doSomething()
except Exception, err:
log.error(
'''Failure during doSomething with X,Y,Z parameters: %s''',
util.get_traceback( err ),
)
"""
if error is None:
error = []
for (f,l,func,statement) in traceback.extract_stack()[:-2]:
if statement:
statement = ': %s'%( statement, )
if func:
error.append( '%s.%s (%s)%s'%( f,func,l, statement))
else:
error.append( '%s (%s)%s'%( f,l, statement))
return "\n".join( error )
else:
exception = str(error)
file = cStringIO.StringIO()
try:
traceback.print_exc( limit=10, file = file )
exception = file.getvalue()
finally:
file.close()
return exception
|
