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comparison mercurial/util.py @ 15656:4f5a78fa4917

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util: clean up function ordering
author Matt Mackall <mpm@selenic.com>
date Thu, 15 Dec 2011 14:59:22 -0600
parents ec8a49c46d7e
children d976b1ef6760
comparison
equal deleted inserted replaced
15655:5402fd9dd13e 15656:4f5a78fa4917
72 unlinkpath = platform.unlinkpath 72 unlinkpath = platform.unlinkpath
73 username = platform.username 73 username = platform.username
74 74
75 # Python compatibility 75 # Python compatibility
76 76
77 _notset = object()
78
79 def safehasattr(thing, attr):
80 return getattr(thing, attr, _notset) is not _notset
81
77 def sha1(s=''): 82 def sha1(s=''):
78 ''' 83 '''
79 Low-overhead wrapper around Python's SHA support 84 Low-overhead wrapper around Python's SHA support
80 85
81 >>> f = _fastsha1 86 >>> f = _fastsha1
84 >>> a.hexdigest() 89 >>> a.hexdigest()
85 'da39a3ee5e6b4b0d3255bfef95601890afd80709' 90 'da39a3ee5e6b4b0d3255bfef95601890afd80709'
86 ''' 91 '''
87 92
88 return _fastsha1(s) 93 return _fastsha1(s)
89
90 _notset = object()
91 def safehasattr(thing, attr):
92 return getattr(thing, attr, _notset) is not _notset
93 94
94 def _fastsha1(s=''): 95 def _fastsha1(s=''):
95 # This function will import sha1 from hashlib or sha (whichever is 96 # This function will import sha1 from hashlib or sha (whichever is
96 # available) and overwrite itself with it on the first call. 97 # available) and overwrite itself with it on the first call.
97 # Subsequent calls will go directly to the imported function. 98 # Subsequent calls will go directly to the imported function.