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1 # -*- coding: iso-8859-1 -*-
2 # vim: set ft=python ts=3 sw=3 expandtab:
3 # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
4 #
5 # C E D A R
6 # S O L U T I O N S "Software done right."
7 # S O F T W A R E
8 #
9 # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
10 #
11 # Copyright (c) 2010 Kenneth J. Pronovici.
12 # All rights reserved.
13 #
14 # This program is free software; you can redistribute it and/or
15 # modify it under the terms of the GNU General Public License,
16 # Version 2, as published by the Free Software Foundation.
17 #
18 # This program is distributed in the hope that it will be useful,
19 # but WITHOUT ANY WARRANTY; without even the implied warranty of
20 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
21 #
22 # Copies of the GNU General Public License are available from
23 # the Free Software Foundation website, http://www.gnu.org/.
24 #
25 # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
26 #
27 # Author : Kenneth J. Pronovici <pronovic@ieee.org>
28 # Language : Python 2 (>= 2.7)
29 # Project : Cedar Backup, release 2
30 # Purpose : Implements customized behavior.
31 #
32 # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
33
34 ########################################################################
35 # Module documentation
36 ########################################################################
37
38 """
39 Implements customized behavior.
40
41 Some behaviors need to vary when packaged for certain platforms. For instance,
42 while Cedar Backup generally uses cdrecord and mkisofs, Debian ships compatible
43 utilities called wodim and genisoimage. I want there to be one single place
44 where Cedar Backup is patched for Debian, rather than having to maintain a
45 variety of patches in different places.
46
47 @author: Kenneth J. Pronovici <pronovic@ieee.org>
48 """
49
50 ########################################################################
51 # Imported modules
52 ########################################################################
53
54 # System modules
55 import logging
56
57
58 ########################################################################
59 # Module-wide constants and variables
60 ########################################################################
61
62 logger = logging.getLogger("CedarBackup2.log.customize")
63
64 PLATFORM = "standard"
65 #PLATFORM = "debian"
66
67 DEBIAN_CDRECORD = "/usr/bin/wodim"
68 DEBIAN_MKISOFS = "/usr/bin/genisoimage"
69
70
71 #######################################################################
72 # Public functions
73 #######################################################################
74
75 ################################
76 # customizeOverrides() function
77 ################################
78
80 """
81 Modify command overrides based on the configured platform.
82
83 On some platforms, we want to add command overrides to configuration. Each
84 override will only be added if the configuration does not already contain an
85 override with the same name. That way, the user still has a way to choose
86 their own version of the command if they want.
87
88 @param config: Configuration to modify
89 @param platform: Platform that is in use
90 """
91 if platform == "debian":
92 logger.info("Overriding cdrecord for Debian platform: %s", DEBIAN_CDRECORD)
93 config.options.addOverride("cdrecord", DEBIAN_CDRECORD)
94 logger.info("Overriding mkisofs for Debian platform: %s", DEBIAN_MKISOFS)
95 config.options.addOverride("mkisofs", DEBIAN_MKISOFS)
96
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