Modified source engine (2017) developed by valve and leaked in 2020. Not for commercial purporses
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# encoding: utf-8
# fwgslib.py -- utils for Waifu build system(Waf with extensions) by FWGS
# Copyright (C) 2018 a1batross, Michel Mooij (michel.mooij
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
import os
from waflib import Utils, Errors, Configure, Build
def get_flags_by_compiler(flags, compiler, major_version=None):
'''Returns a list of compile flags, depending on compiler
:param flags: compiler flags
:type flags: dict
:param compiler: compiler string(COMPILER_CC, for example)
:type compiler: string
:returns: list of flags
'''
out = []
if compiler in flags:
f = flags[compiler]
if type(f) is list:
out += f
elif type(f) is dict:
if major_version in f:
out += f[major_version]
elif 'default' in flags:
out += f['default']
else:
raise TypeError('unknown type, expected list or dict, got %s' % type(f))
elif 'default' in flags:
out += flags['default']
return out
def get_flags_by_type(flags, type, compiler, major_version=None):
'''Returns a list of compile flags, depending on compiler and build type
:param flags: compiler flags
:param type: build type
:type type: string
:param compiler: compiler string(COMPILER_CC, for example)
:type compiler: string
:returns: list of flags
'''
out = []
if 'common' in flags:
out += get_flags_by_compiler(flags['common'], compiler, major_version)
if type in flags:
out += get_flags_by_compiler(flags[type], compiler, major_version)
return out
@Configure.conf
def filter_flags(conf, flags, required_flags, features, checkarg, compiler):
check_flags = required_flags + (['-Werror'] if compiler != 'msvc' else [])
tests = map(lambda x: {
'features': features,
'compiler' : compiler,
'msg': '... ' + x,
'define_name': Utils.quote_define_name(x),
checkarg: [x] + check_flags }, flags )
conf.env.stash()
conf.multicheck(*tests,
msg = 'Checking supported flags for %s in parallel' % compiler,
mandatory = False)
supported_flags = [ f for f in flags if conf.env[Utils.quote_define_name(f)] ]
conf.env.revert()
return supported_flags
@Configure.conf
def filter_cflags(conf, flags, required_flags = []):
return conf.filter_flags(flags, required_flags, 'c', 'cflags', conf.env.COMPILER_CC)
@Configure.conf
def filter_cxxflags(conf, flags, required_flags = []):
return conf.filter_flags(flags, required_flags, 'cxx', 'cxxflags', conf.env.COMPILER_CXX)
def conf_get_flags_by_compiler(unused, flags, compiler, major_version=None):
return get_flags_by_compiler(flags, compiler, major_version)
setattr(Configure.ConfigurationContext, 'get_flags_by_compiler', conf_get_flags_by_compiler)
setattr(Build.BuildContext, 'get_flags_by_compiler', conf_get_flags_by_compiler)
def conf_get_flags_by_type(unused, flags, type, compiler, major_version=None):
return get_flags_by_type(flags, type, compiler, major_version)
setattr(Configure.ConfigurationContext, 'get_flags_by_type', conf_get_flags_by_type)
setattr(Build.BuildContext, 'get_flags_by_type', conf_get_flags_by_type)
def get_deps(bld, target):
'''Returns a list of (nested) targets on which this target depends.
:param bld: a *waf* build instance from the top level *wscript*
:type bld: waflib.Build.BuildContext
:param target: task name for which the dependencies should be returned
:type target: str
:returns: a list of task names on which the given target depends
'''
try:
tgen = bld.get_tgen_by_name(target)
except Errors.WafError:
return []
else:
uses = Utils.to_list(getattr(tgen, 'use', []))
deps = uses[:]
for use in uses:
deps += get_deps(bld, use)
return list(set(deps))
def get_tgens(bld, names):
'''Returns a list of task generators based on the given list of task
generator names.
:param bld: a *waf* build instance from the top level *wscript*
:type bld: waflib.Build.BuildContext
:param names: list of task generator names
:type names: list of str
:returns: list of task generators
'''
tgens=[]
for name in names:
try:
tgen = bld.get_tgen_by_name(name)
except Errors.WafError:
pass
else:
tgens.append(tgen)
return list(set(tgens))
def get_targets(bld):
'''Returns a list of user specified build targets or None if no specific
build targets has been selected using the *--targets=* command line option.
:param bld: a *waf* build instance from the top level *wscript*.
:type bld: waflib.Build.BuildContext
:returns: a list of user specified target names (using --targets=x,y,z) or None
'''
if bld.targets == '':
return None
targets = bld.targets.split(',')
for target in targets:
targets += get_deps(bld, target)
return targets