89 lines
2.9 KiB
Python
89 lines
2.9 KiB
Python
import os
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import sys
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from SCons.Script import ARGUMENTS
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from SCons.Variables import *
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from SCons.Variables.BoolVariable import _text2bool
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def get_cmdline_bool(option, default):
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"""We use `ARGUMENTS.get()` to check if options were manually overridden on the command line,
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and SCons' _text2bool helper to convert them to booleans, otherwise they're handled as strings.
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"""
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cmdline_val = ARGUMENTS.get(option)
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if cmdline_val is not None:
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return _text2bool(cmdline_val)
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else:
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return default
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def options(opts):
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opts.Add(
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EnumVariable(
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"optimize",
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"The desired optimization flags",
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"speed_trace",
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("none", "custom", "debug", "speed", "speed_trace", "size"),
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)
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)
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opts.Add(BoolVariable("debug_symbols", "Build with debugging symbols", True))
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opts.Add(BoolVariable("dev_build", "Developer build with dev-only debugging code (DEV_ENABLED)", False))
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def exists(env):
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return True
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def generate(env):
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env.dev_build = env["dev_build"]
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env.debug_features = env["target"] in ["editor", "template_debug"]
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env.editor_build = env["target"] == "editor"
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if env.editor_build:
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env.AppendUnique(CPPDEFINES=["TOOLS_ENABLED"])
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if env.debug_features:
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env.AppendUnique(CPPDEFINES=["DEBUG_ENABLED", "DEBUG_METHODS_ENABLED"])
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if env.dev_build:
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opt_level = "none"
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env.AppendUnique(CPPDEFINES=["DEV_ENABLED"])
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elif env.debug_features:
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opt_level = "speed_trace"
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else: # Release
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opt_level = "speed"
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env["optimize"] = ARGUMENTS.get("optimize", opt_level)
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env["debug_symbols"] = get_cmdline_bool("debug_symbols", env.dev_build)
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if "is_msvc" in env and env["is_msvc"]:
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if env["debug_symbols"]:
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env.Append(CCFLAGS=["/Zi", "/FS"])
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env.Append(LINKFLAGS=["/DEBUG:FULL"])
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if env["optimize"] == "speed" or env["optimize"] == "speed_trace":
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env.Append(CCFLAGS=["/O2"])
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env.Append(LINKFLAGS=["/OPT:REF"])
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elif env["optimize"] == "size":
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env.Append(CCFLAGS=["/O1"])
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env.Append(LINKFLAGS=["/OPT:REF"])
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elif env["optimize"] == "debug" or env["optimize"] == "none":
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env.Append(CCFLAGS=["/Od"])
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else:
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if env["debug_symbols"]:
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if env.dev_build:
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env.Append(CCFLAGS=["-g3"])
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else:
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env.Append(CCFLAGS=["-g2"])
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if env["optimize"] == "speed":
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env.Append(CCFLAGS=["-O3"])
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# `-O2` is friendlier to debuggers than `-O3`, leading to better crash backtraces.
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elif env["optimize"] == "speed_trace":
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env.Append(CCFLAGS=["-O2"])
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elif env["optimize"] == "size":
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env.Append(CCFLAGS=["-Os"])
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elif env["optimize"] == "debug":
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env.Append(CCFLAGS=["-Og"])
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elif env["optimize"] == "none":
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env.Append(CCFLAGS=["-O0"])
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