150 lines
4.5 KiB
Python
150 lines
4.5 KiB
Python
# encoding: utf-8
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# fwgslib.py -- utils for Waifu build system(Waf with extensions) by FWGS
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# Copyright (C) 2018 a1batross, Michel Mooij (michel.mooij
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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import os
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from waflib import Utils, Errors, Configure, Build
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def get_flags_by_compiler(flags, compiler):
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'''Returns a list of compile flags, depending on compiler
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:param flags: compiler flags
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:type flags: dict
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:param compiler: compiler string(COMPILER_CC, for example)
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:type compiler: string
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:returns: list of flags
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'''
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out = []
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if compiler in flags:
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out += flags[compiler]
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elif 'default' in flags:
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out += flags['default']
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return out
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def get_flags_by_type(flags, type, compiler):
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'''Returns a list of compile flags, depending on compiler and build type
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:param flags: compiler flags
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:param type: build type
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:type type: string
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:param compiler: compiler string(COMPILER_CC, for example)
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:type compiler: string
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:returns: list of flags
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'''
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out = []
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if 'common' in flags:
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out += get_flags_by_compiler(flags['common'], compiler)
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if type in flags:
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out += get_flags_by_compiler(flags[type], compiler)
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return out
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@Configure.conf
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def filter_flags(conf, flags, required_flags, checkfunc, checkarg, compiler):
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conf.msg('Detecting supported flags for %s' % (compiler), '...')
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check_flags = required_flags + (['-Werror'] if compiler != 'msvc' else [])
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supported_flags = []
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for f in flags:
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conf.start_msg('Checking for %s' % f)
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fun = getattr(conf, 'check_' + checkfunc)
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try:
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fun(conf, **{ checkarg: [f] + check_flags })
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except conf.errors.ConfigurationError:
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conf.end_msg('no', color='YELLOW')
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else:
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conf.end_msg('yes')
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supported_flags.append(f)
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return supported_flags
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@Configure.conf
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def filter_cflags(conf, flags, required_flags = []):
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return conf.filter_flags(flags, required_flags, 'cc', 'cflags', conf.env.COMPILER_CC)
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@Configure.conf
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def filter_cxxflags(conf, flags, required_flags = []):
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return conf.filter_flags(flags, required_flags, 'cxx', 'cxxflags', conf.env.COMPILER_CXX)
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def conf_get_flags_by_compiler(unused, flags, compiler):
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return get_flags_by_compiler(flags, compiler)
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setattr(Configure.ConfigurationContext, 'get_flags_by_compiler', conf_get_flags_by_compiler)
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setattr(Build.BuildContext, 'get_flags_by_compiler', conf_get_flags_by_compiler)
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def conf_get_flags_by_type(unused, flags, type, compiler):
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return get_flags_by_type(flags, type, compiler)
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setattr(Configure.ConfigurationContext, 'get_flags_by_type', conf_get_flags_by_type)
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setattr(Build.BuildContext, 'get_flags_by_type', conf_get_flags_by_type)
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def get_deps(bld, target):
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'''Returns a list of (nested) targets on which this target depends.
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:param bld: a *waf* build instance from the top level *wscript*
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:type bld: waflib.Build.BuildContext
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:param target: task name for which the dependencies should be returned
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:type target: str
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:returns: a list of task names on which the given target depends
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'''
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try:
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tgen = bld.get_tgen_by_name(target)
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except Errors.WafError:
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return []
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else:
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uses = Utils.to_list(getattr(tgen, 'use', []))
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deps = uses[:]
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for use in uses:
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deps += get_deps(bld, use)
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return list(set(deps))
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def get_tgens(bld, names):
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'''Returns a list of task generators based on the given list of task
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generator names.
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:param bld: a *waf* build instance from the top level *wscript*
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:type bld: waflib.Build.BuildContext
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:param names: list of task generator names
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:type names: list of str
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:returns: list of task generators
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'''
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tgens=[]
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for name in names:
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try:
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tgen = bld.get_tgen_by_name(name)
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except Errors.WafError:
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pass
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else:
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tgens.append(tgen)
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return list(set(tgens))
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def get_targets(bld):
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'''Returns a list of user specified build targets or None if no specific
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build targets has been selected using the *--targets=* command line option.
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:param bld: a *waf* build instance from the top level *wscript*.
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:type bld: waflib.Build.BuildContext
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:returns: a list of user specified target names (using --targets=x,y,z) or None
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'''
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if bld.targets == '':
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return None
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targets = bld.targets.split(',')
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for target in targets:
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targets += get_deps(bld, target)
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return targets
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