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108 lines
2.7 KiB
Python
108 lines
2.7 KiB
Python
#!/usr/bin/python
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# -*- coding: utf-8 -*-
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# Tool to extend c_config.check_cfg()
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__author__ = __maintainer__ = "Jérôme Carretero <cJ-waf@zougloub.eu>"
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__copyright__ = "Jérôme Carretero, 2014"
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"""
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This tool allows to work around the absence of ``*-config`` programs
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on systems, by keeping the same clean configuration syntax but inferring
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values or permitting their modification via the options interface.
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Note that pkg-config can also support setting ``PKG_CONFIG_PATH``,
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so you can put custom files in a folder containing new .pc files.
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This tool could also be implemented by taking advantage of this fact.
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Usage::
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def options(opt):
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opt.load('c_config_alt')
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opt.add_package_option('package')
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def configure(cfg):
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conf.load('c_config_alt')
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conf.check_cfg(...)
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Known issues:
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- Behavior with different build contexts...
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"""
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import os
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import functools
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from waflib import Task, Utils, TaskGen, Configure, Options, Errors
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def name_to_dest(x):
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return x.lower().replace('-', '_')
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def options(opt):
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def x(opt, param):
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dest = name_to_dest(param)
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opt.add_option('--%s-root' % dest,
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help="path containing include and lib subfolders for %s" \
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% param,
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)
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opt.add_package_option = functools.partial(x, opt)
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check_cfg_old = getattr(Configure.ConfigurationContext, 'check_cfg')
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@Configure.conf
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def check_cfg(conf, *k, **kw):
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if k:
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lst = k[0].split()
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kw['package'] = lst[0]
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kw['args'] = ' '.join(lst[1:])
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if not 'package' in kw:
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return check_cfg_old(conf, **kw)
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package = kw['package']
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package_lo = name_to_dest(package)
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package_hi = package.upper().replace('-', '_') # TODO FIXME
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package_hi = kw.get('uselib_store', package_hi)
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def check_folder(path, name):
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try:
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assert os.path.isdir(path)
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except AssertionError:
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raise Errors.ConfigurationError(
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"%s_%s (%s) is not a folder!" \
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% (package_lo, name, path))
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return path
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root = getattr(Options.options, '%s_root' % package_lo, None)
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if root is None:
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check_cfg_old(conf, **kw)
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else:
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def add_manual_var(k, v):
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conf.start_msg('Adding for %s a manual var' % (package))
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conf.env["%s_%s" % (k, package_hi)] = v
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conf.end_msg("%s = %s" % (k, v))
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check_folder(root, 'root')
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pkg_inc = check_folder(os.path.join(root, "include"), 'inc')
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add_manual_var('INCLUDES', [pkg_inc])
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pkg_lib = check_folder(os.path.join(root, "lib"), 'libpath')
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add_manual_var('LIBPATH', [pkg_lib])
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add_manual_var('LIB', [package])
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for x in kw.get('manual_deps', []):
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for k, v in sorted(conf.env.get_merged_dict().items()):
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if k.endswith('_%s' % x):
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k = k.replace('_%s' % x, '')
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conf.start_msg('Adding for %s a manual dep' \
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%(package))
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conf.env["%s_%s" % (k, package_hi)] += v
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conf.end_msg('%s += %s' % (k, v))
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