wscript: rework waf script, add mod_options.txt support, synchronize with engine as much as possible

wscript

@@ -2,16 +2,16 @@
 # encoding: utf-8
 # a1batross, mittorn, 2018
 
-from __future__ import print_function
+from waflib import Build, Configure, Context, Logs
-from waflib import Logs, Context, Configure
 import sys
 import os
+import re
 
 VERSION = '2.4'
-APPNAME = 'hlsdk-xash3d'
+APPNAME = 'hlsdk-portable'
 top = '.'
 
-Context.Context.line_just = 55 # should fit for everything on 80x26
+Context.Context.line_just = 60 # should fit for everything on 80x26
 
 @Configure.conf
 def get_taskgen_count(self):
@@ -20,45 +20,29 @@ def get_taskgen_count(self):
 	return idx
 
 def options(opt):
+	opt.load('reconfigure compiler_optimizations xcompile compiler_cxx compiler_c clang_compilation_database strip_on_install msdev msvs msvc subproject')
+	
 	grp = opt.add_option_group('Common options')
 
 	grp.add_option('-8', '--64bits', action = 'store_true', dest = 'ALLOW64', default = False,
 		help = 'allow targetting 64-bit engine(Linux/Windows/OSX x86 only) [default: %default]')
+	grp.add_option('--disable-werror', action = 'store_true', dest = 'DISABLE_WERROR', default = False,
+		help = 'disable compilation abort on warning')
+	grp.add_option('--enable-voicemgr', action = 'store_true', dest = 'USE_VOICEMGR', default = False,
+		help = 'Enable VOICE MANAGER')
 
-	grp.add_option('--enable-voicemgr', action = 'store_true', dest = 'VOICEMGR', default = False,
+	opt.add_subproject('dlls')
-		help = 'enable voice manager [default: %default]')
+	opt.add_subproject('cl_dll')
-
-	grp.add_option('--disable-goldsrc-support', action = 'store_false', dest = 'GOLDSRC', default = True,
-		help = 'disable GoldSource engine support [default: %default]')
-
-	opt.load('compiler_optimizations subproject')
-
-	opt.add_subproject(['cl_dll', 'dlls'])
-
-	opt.load('xcompile compiler_cxx compiler_c clang_compilation_database strip_on_install msdev msvs')
-	if sys.platform == 'win32':
-		opt.load('msvc')
-	opt.load('reconfigure')
 
 def configure(conf):
-	# Configuration
+	conf.load('fwgslib reconfigure compiler_optimizations')
-	conf.env.GAMEDIR     = 'valve'
-	conf.env.CLIENT_DIR  = 'cl_dlls'
-	conf.env.SERVER_DIR  = 'dlls'
-	conf.env.SERVER_NAME = 'hl'
-	conf.env.PREFIX = ''
-
-	conf.load('fwgslib reconfigure compiler_optimizations enforce_pic')
-
-	enforce_pic = True # modern defaults
-
-	conf.env.VOICEMGR    = conf.options.VOICEMGR
-	conf.env.GOLDSRC     = conf.options.GOLDSRC
 
-	# Force XP compability, all build targets should add
+	# Force XP compatibility, all build targets should add subsystem=bld.env.MSVC_SUBSYSTEM
-	# subsystem=bld.env.MSVC_SUBSYSTEM
+	if conf.env.MSVC_TARGETS[0] == 'x86':
-	# TODO: wrapper around bld.stlib, bld.shlib and so on?
 		conf.env.MSVC_SUBSYSTEM = 'WINDOWS,5.01'
+	else:
+		conf.env.MSVC_SUBSYSTEM = 'WINDOWS'
+
 	conf.env.MSVC_TARGETS = ['x86' if not conf.options.ALLOW64 else 'x64']
 
 	# Load compilers early
@@ -71,108 +55,138 @@ def configure(conf):
 	if conf.env.COMPILER_CC == 'msvc':
 		conf.load('msvc_pdb')
 
-	conf.load('msvs msdev strip_on_install')
+	conf.load('msvs msdev subproject clang_compilation_database strip_on_install enforce_pic')
-
-	if conf.env.DEST_OS == 'android':
-		conf.options.GOLDSRC = conf.env.GOLDSRC = False
-		conf.env.SERVER_NAME = 'server' # can't be any other name, until specified
-	elif conf.env.DEST_OS in ['nswitch', 'psvita']:
-		conf.options.GOLDSRC = conf.env.GOLDSRC = False
-	
-	if conf.env.MAGX:
-		enforce_pic = False
 
+	enforce_pic = True # modern defaults
 	conf.check_pic(enforce_pic)
 
 	# We restrict 64-bit builds ONLY for Win/Linux/OSX running on Intel architecture
 	# Because compatibility with original GoldSrc
-	if conf.env.DEST_OS in ['win32', 'linux', 'darwin'] and conf.env.DEST_CPU in ['x86_64']:
+	if conf.env.DEST_OS in ['win32', 'linux', 'darwin'] and conf.env.DEST_CPU == 'x86_64':
-		conf.env.BIT32_ALLOW64 = conf.options.ALLOW64
+		conf.env.BIT32_MANDATORY = not conf.options.ALLOW64
-		if not conf.env.BIT32_ALLOW64:
+		if conf.env.BIT32_MANDATORY:
-			Logs.info('WARNING: will build engine for 32-bit target')
+			Logs.info('WARNING: will build game for 32-bit target')
 	else:
-		conf.env.BIT32_ALLOW64 = True
+		conf.env.BIT32_MANDATORY = False
-	conf.env.BIT32_MANDATORY = not conf.env.BIT32_ALLOW64
-	conf.load('force_32bit library_naming')
 
-	compiler_optional_flags = [
+	conf.load('force_32bit')
-		'-fdiagnostics-color=always',
-		'-Werror=return-type',
-		'-Werror=parentheses',
-		'-Werror=vla',
-		'-Werror=tautological-compare',
-		'-Werror=duplicated-cond',
-		'-Werror=bool-compare',
-		'-Werror=bool-operation',
-		'-Wstrict-aliasing',
-	]
-
-	c_compiler_optional_flags = [
-		'-Werror=implicit-function-declaration',
-		'-Werror=int-conversion',
-		'-Werror=implicit-int',
-		'-Werror=declaration-after-statement'
-	]
 
 	cflags, linkflags = conf.get_optimization_flags()
+	cxxflags = list(cflags) # optimization flags are common between C and C++ but we need a copy
 
-	# Here we don't differentiate C or C++ flags
+	# on the Switch, allow undefined symbols by default, which is needed for libsolder to work
-	if conf.options.LTO:
+	# we'll specifically disallow them for the engine executable
-		lto_cflags = {
+	# additionally, shared libs are linked without standard libs, we'll add those back in the engine wscript
-			'msvc':  ['/GL'],
-			'gcc':   ['-flto'],
-			'clang': ['-flto']
-		}
-
-		lto_linkflags = {
-			'msvc':  ['/LTCG'],
-			'gcc':   ['-flto'],
-			'clang': ['-flto']
-		}
-		cflags    += conf.get_flags_by_compiler(lto_cflags, conf.env.COMPILER_CC)
-		linkflags += conf.get_flags_by_compiler(lto_linkflags, conf.env.COMPILER_CC)
-
-	if conf.options.POLLY:
-		polly_cflags = {
-			'gcc':   ['-fgraphite-identity'],
-			'clang': ['-mllvm', '-polly']
-			# msvc sosat :(
-		}
-
-		cflags   += conf.get_flags_by_compiler(polly_cflags, conf.env.COMPILER_CC)
-
-	# And here C++ flags starts to be treated separately
-	cxxflags = list(cflags)
-	if conf.env.COMPILER_CC != 'msvc':
-		conf.check_cc(cflags=cflags, msg= 'Checking for required C flags')
-		conf.check_cxx(cxxflags=cflags, msg= 'Checking for required C++ flags')
-
-		cflags += conf.filter_cflags(compiler_optional_flags + c_compiler_optional_flags, cflags)
-		cxxflags += conf.filter_cxxflags(compiler_optional_flags, cflags)
-
-	# on the Switch and the PSVita, allow undefined symbols by default,
-	# which is needed for the dynamic loaders to work
-	# additionally, shared libs are linked without libc
 	if conf.env.DEST_OS == 'nswitch':
 		linkflags.remove('-Wl,--no-undefined')
 		conf.env.append_unique('LINKFLAGS_cshlib', ['-nostdlib', '-nostartfiles'])
 		conf.env.append_unique('LINKFLAGS_cxxshlib', ['-nostdlib', '-nostartfiles'])
+	# same on the vita
 	elif conf.env.DEST_OS == 'psvita':
-		linkflags.remove('-Wl,--no-undefined')
 		conf.env.append_unique('CFLAGS_cshlib', ['-fPIC'])
 		conf.env.append_unique('CXXFLAGS_cxxshlib', ['-fPIC', '-fno-use-cxa-atexit'])
 		conf.env.append_unique('LINKFLAGS_cshlib', ['-nostdlib', '-Wl,--unresolved-symbols=ignore-all'])
 		conf.env.append_unique('LINKFLAGS_cxxshlib', ['-nostdlib', '-Wl,--unresolved-symbols=ignore-all'])
+	# check if we need to use irix linkflags
+	elif conf.env.DEST_OS == 'irix' and conf.env.COMPILER_CC == 'gcc':
+		linkflags.remove('-Wl,--no-undefined')
+		linkflags.append('-Wl,--unresolved-symbols=ignore-all')
+		# check if we're in a sgug environment
+		if 'sgug' in os.environ['LD_LIBRARYN32_PATH']:
+			linkflags.append('-lc')
+
+	conf.check_cc(cflags=cflags, linkflags=linkflags, msg='Checking for required C flags')
+	conf.check_cxx(cxxflags=cxxflags, linkflags=linkflags, msg='Checking for required C++ flags')
 
 	conf.env.append_unique('CFLAGS', cflags)
 	conf.env.append_unique('CXXFLAGS', cxxflags)
 	conf.env.append_unique('LINKFLAGS', linkflags)
 
+	if conf.env.COMPILER_CC != 'msvc' and not conf.options.DISABLE_WERROR:
+		opt_flags = [
+			# '-Wall', '-Wextra', '-Wpedantic',
+			'-fdiagnostics-color=always',
+
+			# stable diagnostics, forced to error, sorted
+			'-Werror=bool-compare',
+			'-Werror=bool-operation',
+			'-Werror=cast-align=strict',
+			'-Werror=duplicated-cond',
+			# '-Werror=format=2',
+			'-Werror=implicit-fallthrough=2',
+			# '-Werror=logical-op',
+			'-Werror=packed',
+			'-Werror=packed-not-aligned',
+			'-Werror=parentheses',
+			'-Werror=return-type',
+			'-Werror=sequence-point',
+			'-Werror=sizeof-pointer-memaccess',
+			'-Werror=sizeof-array-div',
+			'-Werror=sizeof-pointer-div',
+			# '-Werror=strict-aliasing',
+			'-Werror=string-compare',
+			'-Werror=tautological-compare',
+			'-Werror=use-after-free=3',
+			'-Werror=vla',
+			'-Werror=write-strings',
+
+			# unstable diagnostics, may cause false positives
+			'-Winit-self',
+			'-Wmisleading-indentation',
+			'-Wunintialized',
+
+			# disabled, flood
+			# '-Wdouble-promotion',
+		]
+
+		opt_cflags = [
+			'-Werror=declaration-after-statement',
+			'-Werror=enum-conversion',
+			'-Werror=implicit-int',
+			'-Werror=implicit-function-declaration',
+			'-Werror=incompatible-pointer-types',
+			'-Werror=int-conversion',
+			'-Werror=jump-misses-init',
+			# '-Werror=old-style-declaration',
+			# '-Werror=old-style-definition',
+			# '-Werror=strict-prototypes',
+			'-fnonconst-initializers' # owcc
+		]
+
+		opt_cxxflags = [] # TODO:
+
+		cflags = conf.filter_cflags(opt_flags + opt_cflags, cflags)
+		cxxflags = conf.filter_cxxflags(opt_flags + opt_cxxflags, cxxflags)
+
+		conf.env.append_unique('CFLAGS', cflags)
+		conf.env.append_unique('CXXFLAGS', cxxflags)
+
+	if conf.env.DEST_OS == 'android':
+		# LIB_M added in xcompile!
+		pass
+	elif conf.env.DEST_OS == 'win32':
+		a = [ 'user32', 'winmm' ]
+		if conf.env.COMPILER_CC == 'msvc':
+			for i in a:
+				conf.start_msg('Checking for MSVC library')
+				conf.check_lib_msvc(i)
+				conf.end_msg(i)
+		else:
+			for i in a:
+				conf.check_cc(lib = i)
+	else:
+		if conf.env.GOLDSOURCE_SUPPORT:
+			conf.check_cc(lib='dl')
+		conf.check_cc(lib='m')
+
 	# check if we can use C99 tgmath
 	if conf.check_cc(header_name='tgmath.h', mandatory=False):
+		if conf.env.COMPILER_CC == 'msvc':
+			conf.define('_CRT_SILENCE_NONCONFORMING_TGMATH_H', 1)
 		tgmath_usable = conf.check_cc(fragment='''#include<tgmath.h>
-			int main(void){ return (int)sin(2.0f); }''',
+			const float val = 2, val2 = 3;
-			msg='Checking if tgmath.h is usable', mandatory=False)
+			int main(void){ return (int)(-asin(val) + cos(val2)); }''',
+			msg='Checking if tgmath.h is usable', mandatory=False, use='M')
 		conf.define_cond('HAVE_TGMATH_H', tgmath_usable)
 	else:
 		conf.undefine('HAVE_TGMATH_H')
@@ -187,29 +201,48 @@ def configure(conf):
 	elif conf.env.COMPILER_CC == 'owcc':
 		pass
 	else:
-		conf.env.append_unique('DEFINES', ['stricmp=strcasecmp', 'strnicmp=strncasecmp', '_snprintf=snprintf', '_vsnprintf=vsnprintf', '_LINUX', 'LINUX'])
+		conf.env.append_unique('CXXFLAGS', ['-Wno-invalid-offsetof', '-fno-exceptions'])
-		conf.env.append_unique('CXXFLAGS', ['-Wno-invalid-offsetof', '-fno-rtti', '-fno-exceptions'])
+		conf.define('stricmp', 'strcasecmp', quote=False)
+		conf.define('strnicmp', 'strncasecmp', quote=False)
+		conf.define('_snprintf', 'snprintf', quote=False)
+		conf.define('_vsnprintf', 'vsnprintf', quote=False)
+		conf.define('_LINUX', True)
+		conf.define('LINUX', True)
+
+	conf.msg(msg='-> processing mod options', result='...', color='BLUE')
+	regex = re.compile('^([A-Za-z0-9_]+)=([A-Za-z0-9_]+)\ \#\ (.*)$')
+	with open('mod_options.txt') as fd:
+		lines = fd.readlines()
+	for line in lines:
+		p = regex.match(line.strip())
+		if p:
+			conf.start_msg("* " + p[3])
+			if p[2] == 'ON':
+				conf.env[p[1]] = True
+				conf.define(p[1], 1)
+			elif p[2] == 'OFF':
+				conf.env[p[1]] = False
+				conf.undefine(p[1])
+			else:
+				conf.env[p[1]] = p[2]
+			conf.end_msg(p[2])
+	if conf.env.HLDEMO_BUILD and conf.env.OEM_BUILD:
+		conf.fatal('Don\'t mix Demo and OEM builds!')
 
 	# strip lib from pattern
 	if conf.env.DEST_OS not in ['android']:
-		if conf.env.cshlib_PATTERN.startswith('lib'):
-			conf.env.cshlib_PATTERN = conf.env.cshlib_PATTERN[3:]
 		if conf.env.cxxshlib_PATTERN.startswith('lib'):
 			conf.env.cxxshlib_PATTERN = conf.env.cxxshlib_PATTERN[3:]
 
-	conf.define('BARNACLE_FIX_VISIBILITY', False)
+	conf.load('library_naming')
-	conf.define('CLIENT_WEAPONS', True)
+	conf.add_subproject('dlls')
-	conf.define('CROWBAR_IDLE_ANIM', False)
+	conf.add_subproject('cl_dll')
-	conf.define('CROWBAR_DELAY_FIX', False)
-	conf.define('CROWBAR_FIX_RAPID_CROWBAR', False)
-	conf.define('GAUSS_OVERCHARGE_FIX', False)
-	conf.define('OEM_BUILD', False)
-	conf.define('HLDEMO_BUILD', False)
-
-	conf.add_subproject(["cl_dll", "dlls"])
 
 def build(bld):
-	bld.add_subproject(["cl_dll", "dlls"])
+	# don't clean QtCreator files and reconfigure saved options
-
+	bld.clean_files = bld.bldnode.ant_glob('**',
-
+		excl='*.user configuration.py .lock* *conf_check_*/** config.log %s/*' % Build.CACHE_DIR,
+		quiet=True, generator=True)
 
+	bld.add_subproject('dlls')
+	bld.add_subproject('cl_dll')