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comparison waf_paths.py @ 16:927f2cf75357

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Changed build system from SCons to WAF. * WAF is an old fork of SCons that is now for all intents and purposes a different build system. * Unlike SCons which requires a system install of the scons library to work, the entire WAF library is self-contained in a single 'waf' Python script provided with PARPG. * Build instructions are a little different from SCons - execute the local 'waf' script with the arguments 'configure install'. * To make a local install for testing, add the '--destdir=<directory>' option to make all files install under <directory> as a fake root (e.g. '--destdir=dev_install' would make WAF install all files under the 'dev_install' directory in the PARPG source). * Added a waf_paths.py WAF tool to set GNU-compatible installation path variables (i.e. PREFIX, EXEC_PREFIX, LIBDIR, etc.). These variables should be initialized to sane defaults on Windows, where GNU standards don't usually apply.
author M. George Hansen <technopolitica@gmail.com>
date Thu, 09 Jun 2011 21:35:19 -1000
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children 15107282d9eb
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14:6ff6a2f74f1e 16:927f2cf75357
1 #! /usr/bin/env python
2 # encoding: utf-8
3 import sys
4
5 from waflib import Utils, Options, Context
6
7 option_values = {
8 'bindir' : ('user executables', '${EXEC_PREFIX}/bin'),
9 'sbindir' : ('system admin executables', '${EXEC_PREFIX}/sbin'),
10 'libexecdir' : ('program executables', '${EXEC_PREFIX}/libexec'),
11 'sysconfdir' : ('read-only single-machine data', '${PREFIX}/etc'),
12 'sharedstatedir': ('modifiable architecture-independent data',
13 '${PREFIX}/com'),
14 'localstatedir' : ('modifiable single-machine data', '${PREFIX}/var'),
15 'libdir' : ('object code libraries', '${EXEC_PREFIX}/lib'),
16 'includedir' : ('C header files', '${PREFIX}/include'),
17 'oldincludedir' : ('C header files for non-gcc', '/usr/include'),
18 'datarootdir' : ('read-only arch.-independent data root',
19 '${PREFIX}/share'),
20 # datadir definition deviates from GNU by appending the ${APPNAME}, but it
21 # makes the install script simpler since we don't have to redefine install
22 # paths on Windows.
23 'datadir' : ('read-only architecture-independent data',
24 '${DATAROOTDIR}/${APPNAME}'),
25 'infodir' : ('info documentation', '${DATAROOTDIR}/info'),
26 'localedir' : ('locale-dependent data', '${DATAROOTDIR}/locale'),
27 'mandir' : ('man documentation', '${DATAROOTDIR}/man'),
28 'docdir' : ('documentation root', '${DATAROOTDIR}/doc/${APPNAME}'),
29 'htmldir' : ('html documentation', '${DOCDIR}'),
30 'dvidir' : ('dvi documentation', '${DOCDIR}'),
31 'pdfdir' : ('pdf documentation', '${DOCDIR}'),
32 'psdir' : ('ps documentation', '${DOCDIR}'),
33 }
34
35 if sys.platform == 'Windows':
36 option_values['PREFIX'][1] = '${PROGRAM_FILES}/${APPNAME}'
37 option_values['BINDIR'][1] = '${EXEC_PREFIX}'
38 option_values['SYSCONFDIR'][1] = '${PREFIX}'
39 option_values['DATAROOTDIR'][1] = '${PREFIX}'
40 option_values['DATADIR'][1] = '${DATAROOTDIR}/data'
41 option_values['DOCDIR'][1] = '${DATAROOTDIR}/doc'
42
43 def get_param(varname, default):
44 return getattr(Options.options, varname, '') or default
45
46 def configure(conf):
47 env = conf.env
48 env['LIBDIR'] = []
49 env['BINDIR'] = []
50 env['EXEC_PREFIX'] = get_param('EXEC_PREFIX', env['PREFIX'])
51 env['APPNAME'] = getattr(Context.g_module, 'APPNAME')
52 env['INSTALL_PATHS'] = ['PREFIX', 'EXEC_PREFIX']
53 complete = False
54 iter = 0
55 while not complete and iter < len(option_values) + 1:
56 iter += 1
57 complete = True
58 for name in option_values:
59 help, default = option_values[name]
60 name = name.upper()
61 if not env[name]:
62 try:
63 env[name] = Utils.subst_vars(get_param(name, default), env)
64 except TypeError:
65 complete = False
66 env['INSTALL_PATHS'].append(name)
67 if not complete:
68 lst = [name for name in option_values if not env[name.upper()]]
69 raise Errors.WafError('Variable substitution failure %r' % lst)
70
71 def options(opt):
72 inst_dir = opt.add_option_group(
73 'Installation directories',
74 'By default, "waf install" will install all files into their '
75 'appropriate directories under ${PREFIX}. The installation prefix can '
76 'be specified using the "--prefix" option, for example '
77 '"--prefix=$HOME"'
78 )
79 for k in ('--prefix', '--destdir'):
80 option = opt.parser.get_option(k)
81 if option:
82 opt.parser.remove_option(k)
83 inst_dir.add_option(option)
84 inst_dir.add_option(
85 '--exec-prefix',
86 help='installation prefix [Default: ${PREFIX}]',
87 default=inst_dir.defaults['prefix'],
88 dest='EXEC_PREFIX',
89 )
90 dirs_options = opt.add_option_group(
91 'Pre-defined installation directories',
92 ''
93 )
94 for name in option_values:
95 help, default = option_values[name]
96 option_name = '--' + name
97 str_help = '{0} [Default: %default]'.format(help)
98 dirs_options.add_option(option_name, help=str_help, default=default,
99 dest=name.upper())