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
|
from enthought.traits.api import Callable, HasTraits, List, Str
class VersionInfo(HasTraits):
""" Represents the information about a particular version of an
application.
"""
# The version string that this
version = Str()
# Customer-facing notes about this version. Typically this is an
# HTML document containing the changelog between this version and
# the previous version
notes = Str()
# The location of where to obtain this version. Typically this will
# be an HTTP URL, but this can be a URI for a local or LAN item, or
# it can be a
location = Str()
# A function that takes a string (self.version) and returns something
# that can be used to compare against the version-parsed version of
# another VersionInfo object.
version_parser = Callable()
def __cmp__(self, other):
""" Allows for comparing two VersionInfo objects so they can
be presented in version-sorted order. This is where we parse
and interpretation of the **version** string attribute.
"""
# TODO: Do something more intelligent here
if self.version_parser is not None:
self_ver = self.version_parser(self.version)
else:
self_ver = self.version
if other.version_parser is not None:
other_ver = other.version_parser(other.version)
else:
other_ver = other.version
return self_ver < other_ver
class UpdateInfo(HasTraits):
""" Encapsulates the information about the available update or
updates. An update can consist of multiple versions, with each
version containing its own information and download URL.
"""
updates = List(VersionInfo)
pass
|
