CollisionHook/AMBuildScript

# vim: set sts=2 ts=8 sw=2 tw=99 et ft=python:
import os, sys

# Simple extensions do not need to modify this file.


class SDK(object):
    def __init__(self, sdk, ext, aDef, name, platform, dir):
        self.folder = "hl2sdk-" + dir
        self.envvar = sdk
        self.ext = ext
        self.code = aDef
        self.define = name
        self.platform = platform
        self.name = dir
        self.path = None  # Actual path
        self.platformSpec = platform

        # By default, nothing supports x64.
        if type(platform) is list:
            self.platformSpec = {p: ["x86"] for p in platform}
        else:
            self.platformSpec = platform

    def shouldBuild(self, targets):
        for cxx in targets:
            if cxx.target.platform in self.platformSpec:
                if cxx.target.arch in self.platformSpec[cxx.target.platform]:
                    return True
        return False


WinLinux = ["windows", "linux"]
TF2 = {"windows": ["x86", "x86_64"], "linux": ["x86", "x86_64"]}
CSGO = {"windows": ["x86"], "linux": ["x86", "x86_64"]}

PossibleSDKs = {
    #  'episode1':  SDK('HL2SDK', '1.ep1', '1', 'EPISODEONE', WinLinux, 'episode1'),
    #  'darkm':  SDK('HL2SDK-DARKM', '2.darkm', '2', 'DARKMESSIAH', WinOnly, 'darkm'),
    #  'orangebox':  SDK('HL2SDKOB', '2.ep2', '3', 'ORANGEBOX', WinLinux, 'orangebox'),
    #  'bgt':  SDK('HL2SDK-BGT', '2.bgt', '4', 'BLOODYGOODTIME', WinOnly, 'bgt'),
    #  'eye':  SDK('HL2SDK-EYE', '2.eye', '5', 'EYE', WinOnly, 'eye'),
    "css": SDK("HL2SDKCSS", "2.css", "6", "CSS", WinLinux, "css"),
    "hl2dm": SDK("HL2SDKHL2DM", "2.hl2dm", "7", "HL2DM", WinLinux, "hl2dm"),
    "dods": SDK("HL2SDKDODS", "2.dods", "8", "DODS", WinLinux, "dods"),
    "sdk2013": SDK("HL2SDK2013", "2.sdk2013", "9", "SDK2013", WinLinux, "sdk2013"),
    #  'bms':  SDK('HL2SDKBMS', '2.bms', '11', 'BMS', WinLinux, 'bms'),
    "tf2": SDK("HL2SDKTF2", "2.tf2", "12", "TF2", TF2, "tf2"),
    "l4d": SDK("HL2SDKL4D", "2.l4d", "13", "LEFT4DEAD", WinLinux, "l4d"),
    #  'nucleardawn': SDK('HL2SDKND', '2.nd', '14', 'NUCLEARDAWN', WinLinuxMac, 'nucleardawn'),
    #  'contagion':  SDK('HL2SDKCONTAGION', '2.contagion', '15', 'CONTAGION', WinOnly, 'contagion'),
    "l4d2": SDK("HL2SDKL4D2", "2.l4d2", "16", "LEFT4DEAD2", WinLinux, "l4d2"),
    #  'swarm':  SDK('HL2SDK-SWARM', '2.swarm', '17', 'ALIENSWARM', WinOnly, 'swarm'),
    #  'portal2':  SDK('HL2SDKPORTAL2', '2.portal2', '18', 'PORTAL2', [], 'portal2'),
    #  'insurgency':  SDK('HL2SDKINSURGENCY', '2.insurgency', '19', 'INSURGENCY', WinLinuxMac, 'insurgency'),
    #  'blade':  SDK('HL2SDKBLADE', '2.blade', '21', 'BLADE', WinLinux, 'blade'),
    "csgo": SDK("HL2SDKCSGO", "2.csgo", "23", "CSGO", CSGO, "csgo"),
}


def ResolveEnvPath(env, folder):
    if env in os.environ:
        path = os.environ[env]
        if os.path.isdir(path):
            return path
        return None

    head = os.getcwd()
    oldhead = None
    while head != None and head != oldhead:
        path = os.path.join(head, folder)
        if os.path.isdir(path):
            return path
        oldhead = head
        head, tail = os.path.split(head)

    return None


def Normalize(path):
    return os.path.abspath(os.path.normpath(path))


def SetArchFlags(compiler):
    if compiler.behavior == "gcc":
        if compiler.target.arch == "x86_64":
            compiler.cflags += ["-fPIC"]
    elif compiler.like("msvc"):
        if compiler.target.arch == "x86_64":
            compiler.defines += ["WIN64"]


class ExtensionConfig(object):
    def __init__(self):
        self.sdks = {}
        self.binaries = []
        self.extensions = []
        self.generated_headers = None
        self.productVersion = None
        self.mms_root = None
        self.sm_root = None
        self.all_targets = []
        self.target_archs = set()

        if builder.options.targets:
            target_archs = builder.options.targets.split(",")
        else:
            target_archs = ["x86", "x86_64"]

        for arch in target_archs:
            try:
                cxx = builder.DetectCxx(target_arch=arch)
                self.target_archs.add(cxx.target.arch)
            except Exception as e:
                # Error if archs were manually overridden.
                if builder.options.targets:
                    raise
                print("Skipping target {}: {}".format(arch, e))
                continue
            self.all_targets.append(cxx)

        if not self.all_targets:
            raise Exception("No suitable C/C++ compiler was found.")

    def use_auto_versioning(self):
        return not getattr(builder.options, "disable_auto_versioning", False)

    def AddVersioning(self, binary):
        if binary.compiler.target.platform == "windows":
            binary.sources += ["version.rc"]
            binary.compiler.rcdefines += [
                'BINARY_NAME="{0}"'.format(binary.outputFile),
                "RC_COMPILE",
            ]
        elif binary.compiler.target.platform == "mac":
            if binary.type == "library":
                binary.compiler.postlink += [
                    "-compatibility_version",
                    "1.0.0",
                    "-current_version",
                    self.productVersion,
                ]
        if self.use_auto_versioning():
            binary.compiler.sourcedeps += self.generated_headers
        return binary

    @property
    def tag(self):
        if builder.options.debug == "1":
            return "Debug"
        return "Release"

    def detectProductVersion(self):
        builder.AddConfigureFile("product.version")

        # For OS X dylib versioning
        import re

        with open(os.path.join(builder.sourcePath, "product.version"), "r") as fp:
            productContents = fp.read()
        m = re.match("(\\d+)\.(\\d+)\.(\\d+).*", productContents)
        if m == None:
            self.productVersion = "1.0.0"
        else:
            major, minor, release = m.groups()
            self.productVersion = "{0}.{1}.{2}".format(major, minor, release)

    def detectSDKs(self):
        sdk_list = builder.options.sdks.split(" ")
        use_all = sdk_list[0] == "all"
        use_present = sdk_list[0] == "present"

        for sdk_name in PossibleSDKs:
            sdk = PossibleSDKs[sdk_name]
            if sdk.shouldBuild(self.all_targets):
                if builder.options.hl2sdk_root:
                    sdk_path = os.path.join(
                        os.path.realpath(builder.options.hl2sdk_root), sdk.folder
                    )
                else:
                    sdk_path = ResolveEnvPath(sdk.envvar, sdk.folder)
                if sdk_path is None or not os.path.isdir(sdk_path):
                    if use_all or sdk_name in sdk_list:
                        raise Exception(
                            "Could not find a valid path for {0}".format(sdk.envvar)
                        )
                    continue
                if use_all or use_present or sdk_name in sdk_list:
                    sdk.path = Normalize(sdk_path)
                    self.sdks[sdk_name] = sdk

        if len(self.sdks) < 1:
            raise Exception("At least one SDK must be available.")

        if builder.options.sm_path:
            self.sm_root = os.path.realpath(builder.options.sm_path)
        else:
            self.sm_root = ResolveEnvPath("SOURCEMOD", "sourcemod")
            if not self.sm_root:
                self.sm_root = ResolveEnvPath("SOURCEMOD_DEV", "sourcemod-central")

        if not self.sm_root or not os.path.isdir(self.sm_root):
            raise Exception("Could not find a source copy of SourceMod")
        self.sm_root = Normalize(self.sm_root)

        if builder.options.mms_path:
            self.mms_root = builder.options.mms_path
        else:
            self.mms_root = ResolveEnvPath("MMSOURCE110", "mmsource-1.10")
            if not self.mms_root:
                self.mms_root = ResolveEnvPath("MMSOURCE", "metamod-source")
            if not self.mms_root:
                self.mms_root = ResolveEnvPath("MMSOURCE_DEV", "mmsource-central")

        if not self.mms_root or not os.path.isdir(self.mms_root):
            raise Exception("Could not find a source copy of Metamod:Source")
        self.mms_root = Normalize(self.mms_root)

    def configure(self):

        if not set(self.target_archs).issubset(["x86", "x86_64"]):
            raise Exception(
                "Unknown target architecture: {0}".format(self.target_archs)
            )

        for cxx in self.all_targets:
            self.configure_cxx(cxx)

    def configure_cxx(self, cxx):
        if cxx.family == "msvc":
            if cxx.version < 1900:
                raise Exception(
                    "Only MSVC 2015 and later are supported, c++14 support is required."
                )
        if cxx.family == "gcc":
            if cxx.version < "gcc-4.9":
                raise Exception(
                    "Only GCC versions 4.9 or greater are supported, c++14 support is required."
                )
        if cxx.family == "clang":
            if cxx.version < "clang-3.4":
                raise Exception(
                    "Only clang versions 3.4 or greater are supported, c++14 support is required."
                )

        if cxx.like("gcc"):
            self.configure_gcc(cxx)
        elif cxx.family == "msvc":
            self.configure_msvc(cxx)
        cxx.defines += ["HAVE_STRING_H"]

        # Optimizaiton
        if builder.options.opt == "1":
            cxx.defines += ["NDEBUG"]

        # Debugging
        if builder.options.debug == "1":
            cxx.defines += ["DEBUG", "_DEBUG"]

        # Platform-specifics
        if cxx.target.platform == "linux":
            self.configure_linux(cxx)
        elif cxx.target.platform == "mac":
            self.configure_mac(cxx)
        elif cxx.target.platform == "windows":
            self.configure_windows(cxx)

        cxx.includes += [
            os.path.join(self.sm_root, "public"),
        ]

        if self.use_auto_versioning():
            cxx.defines += ["SM_GENERATED_BUILD"]
            cxx.includes += [os.path.join(builder.buildPath, "includes")]

    def configure_gcc(self, cxx):
        cxx.defines += [
            "stricmp=strcasecmp",
            "_stricmp=strcasecmp",
            "_snprintf=snprintf",
            "_vsnprintf=vsnprintf",
            "typeof=__typeof__",
            "HAVE_STDINT_H",
            "GNUC",
        ]
        cxx.cflags += [
            "-pipe",
            "-fno-strict-aliasing",
            "-Wall",
            "-Wno-unused",
            "-Wno-switch",
            "-Wno-array-bounds",
            "-msse",
            "-fvisibility=hidden",
        ]
        cxx.cxxflags += [
            "-std=c++14",
            "-fno-threadsafe-statics",
            "-Wno-non-virtual-dtor",
            "-Wno-overloaded-virtual",
            "-fvisibility-inlines-hidden",
            "-fpermissive",
        ]

        have_gcc = cxx.vendor == "gcc"
        have_clang = cxx.vendor == "clang"
        if (
            cxx.version >= "clang-3.9"
            or cxx.version == "clang-3.4"
            or cxx.version > "apple-clang-6.0"
        ):
            cxx.cxxflags += ["-Wno-expansion-to-defined"]
        if cxx.version == "clang-3.9" or cxx.version == "apple-clang-8.0":
            cxx.cflags += ["-Wno-varargs"]
        if cxx.version >= "clang-3.4" or cxx.version >= "apple-clang-7.0":
            cxx.cxxflags += ["-Wno-inconsistent-missing-override"]
        if cxx.version >= "clang-2.9" or cxx.version >= "apple-clang-3.0":
            cxx.cxxflags += ["-Wno-null-dereference"]
        if have_clang or (cxx.version >= "gcc-4.6"):
            cxx.cflags += ["-Wno-narrowing"]
        if have_clang or (cxx.version >= "gcc-4.7"):
            cxx.cxxflags += ["-Wno-delete-non-virtual-dtor"]
        if cxx.version >= "gcc-4.8":
            cxx.cflags += ["-Wno-unused-result"]
        if cxx.version >= "gcc-9.0":
            cxx.cxxflags += ["-Wno-class-memaccess", "-Wno-packed-not-aligned"]

        if have_clang:
            cxx.cxxflags += ["-Wno-implicit-exception-spec-mismatch"]
            if cxx.version >= "apple-clang-5.1" or cxx.version >= "clang-3.4":
                cxx.cxxflags += ["-Wno-deprecated-register"]
            else:
                cxx.cxxflags += ["-Wno-deprecated"]
            cxx.cflags += ["-Wno-sometimes-uninitialized"]

        # Work around SDK warnings.
        if cxx.version >= "clang-10.0":
            cxx.cflags += [
                "-Wno-implicit-int-float-conversion",
                "-Wno-tautological-overlap-compare",
            ]

        if have_gcc:
            cxx.cflags += ["-mfpmath=sse"]

        if builder.options.opt == "1":
            cxx.cflags += ["-O3"]

    def configure_msvc(self, cxx):
        if builder.options.debug == "1":
            cxx.cflags += ["/MTd"]
            cxx.linkflags += ["/NODEFAULTLIB:libcmt"]
        else:
            cxx.cflags += ["/MT"]
        cxx.defines += [
            "_CRT_SECURE_NO_DEPRECATE",
            "_CRT_SECURE_NO_WARNINGS",
            "_CRT_NONSTDC_NO_DEPRECATE",
            "_ITERATOR_DEBUG_LEVEL=0",
        ]
        cxx.cflags += [
            "/W3",
        ]
        cxx.cxxflags += [
            "/EHsc",
            "/TP",
        ]
        cxx.linkflags += [
            "kernel32.lib",
            "user32.lib",
            "gdi32.lib",
            "winspool.lib",
            "comdlg32.lib",
            "advapi32.lib",
            "shell32.lib",
            "ole32.lib",
            "oleaut32.lib",
            "uuid.lib",
            "odbc32.lib",
            "odbccp32.lib",
        ]

        if builder.options.opt == "1":
            cxx.cflags += ["/Ox", "/Zo"]
            cxx.linkflags += ["/OPT:ICF", "/OPT:REF"]

        if builder.options.debug == "1":
            cxx.cflags += ["/Od", "/RTC1"]

        # This needs to be after our optimization flags which could otherwise disable it.
        # Don't omit the frame pointer.
        cxx.cflags += ["/Oy-"]

    def configure_linux(self, cxx):
        cxx.defines += ["_LINUX", "POSIX"]
        cxx.linkflags += ["-Wl,--exclude-libs,ALL", "-lm"]
        if cxx.vendor == "gcc":
            cxx.linkflags += ["-static-libgcc"]
        elif cxx.vendor == "clang":
            cxx.linkflags += ["-lgcc_eh"]
        cxx.linkflags += ["-static-libstdc++"]

    def configure_mac(self, cxx):
        cxx.defines += ["OSX", "_OSX", "POSIX"]
        cxx.cflags += ["-mmacosx-version-min=10.7"]
        cxx.linkflags += [
            "-mmacosx-version-min=10.7",
            "-arch",
            "i386",
            "-lstdc++",
            "-stdlib=libstdc++",
        ]
        cxx.cxxflags += ["-stdlib=libstdc++"]

    def configure_windows(self, cxx):
        cxx.defines += ["WIN32", "_WINDOWS"]

    def ConfigureForExtension(self, context, compiler):
        compiler.cxxincludes += [
            os.path.join(context.currentSourcePath),
            os.path.join(context.currentSourcePath, "sdk"),
            os.path.join(self.sm_root, "public"),
            os.path.join(self.sm_root, "public", "extensions"),
            os.path.join(self.sm_root, "sourcepawn", "include"),
            os.path.join(self.sm_root, "public", "amtl", "amtl"),
            os.path.join(self.sm_root, "public", "amtl"),
        ]
        return compiler

    def ConfigureForHL2(self, context, binary, sdk):
        compiler = binary.compiler
        SetArchFlags(compiler)

        compiler.cxxincludes += [
            os.path.join(self.mms_root, "core"),
            os.path.join(self.mms_root, "core", "sourcehook"),
        ]

        defines = ["RAD_TELEMETRY_DISABLED"]
        defines += [
            "SE_" + PossibleSDKs[i].define + "=" + PossibleSDKs[i].code
            for i in PossibleSDKs
        ]
        compiler.defines += defines

        paths = [
            ["public"],
            ["public", "engine"],
            ["public", "mathlib"],
            ["public", "vstdlib"],
            ["public", "tier0"],
            ["public", "tier1"],
        ]
        if sdk.name == "episode1" or sdk.name == "darkm":
            paths.append(["public", "dlls"])
            paths.append(["game_shared"])
        else:
            paths.append(["public", "game", "server"])
            paths.append(["public", "toolframework"])
            paths.append(["game", "shared"])
            paths.append(["common"])

        compiler.defines += ["SOURCE_ENGINE=" + sdk.code]

        if sdk.name in ["sdk2013", "bms"] and compiler.like("gcc"):
            # The 2013 SDK already has these in public/tier0/basetypes.h
            compiler.defines.remove("stricmp=strcasecmp")
            compiler.defines.remove("_stricmp=strcasecmp")
            compiler.defines.remove("_snprintf=snprintf")
            compiler.defines.remove("_vsnprintf=vsnprintf")

        if compiler.like("msvc"):
            compiler.defines += ["COMPILER_MSVC"]
            if compiler.target.arch == "x86":
                compiler.defines += ["COMPILER_MSVC32"]
            elif compiler.target.arch == "x86_64":
                compiler.defines += ["COMPILER_MSVC64"]
            compiler.linkflags += ["legacy_stdio_definitions.lib"]
        else:
            compiler.defines += ["COMPILER_GCC"]

        if compiler.target.arch == "x86_64":
            compiler.defines += ["X64BITS", "PLATFORM_64BITS"]

        # For everything after Swarm, this needs to be defined for entity networking
        # to work properly with sendprop value changes.
        if sdk.name in ["blade", "insurgency", "doi", "csgo"]:
            compiler.defines += ["NETWORK_VARS_ENABLED"]

        if sdk.name in [
            "css",
            "hl2dm",
            "dods",
            "sdk2013",
            "bms",
            "tf2",
            "l4d",
            "nucleardawn",
            "l4d2",
        ]:
            if compiler.target.platform in ["linux", "mac"]:
                compiler.defines += ["NO_HOOK_MALLOC", "NO_MALLOC_OVERRIDE"]

        if compiler.target.platform == "linux":
            if sdk.name in ["csgo", "blade"]:
                compiler.linkflags.remove("-static-libstdc++")
                compiler.defines += ["_GLIBCXX_USE_CXX11_ABI=0"]

        for path in paths:
            compiler.cxxincludes += [os.path.join(sdk.path, *path)]

        if compiler.target.platform == "linux":
            if sdk.name == "episode1":
                lib_folder = os.path.join(sdk.path, "linux_sdk")
            elif (
                sdk.name in ["tf2", "sdk2013", "bms"] and compiler.target.arch == "x86"
            ):
                lib_folder = os.path.join(sdk.path, "lib", "public", "linux")
            elif compiler.target.arch == "x86_64":
                lib_folder = os.path.join(sdk.path, "lib", "public", "linux64")
            else:
                lib_folder = os.path.join(sdk.path, "lib", "linux")
        elif compiler.target.platform == "mac":
            if sdk.name in ["sdk2013", "bms"]:
                lib_folder = os.path.join(sdk.path, "lib", "public", "osx32")
            elif compiler.target.arch == "x86_64":
                lib_folder = os.path.join(sdk.path, "lib", "osx64")
            else:
                lib_folder = os.path.join(sdk.path, "lib", "mac")

        if compiler.target.platform in ["linux", "mac"]:
            if sdk.name in ["sdk2013", "bms"] or compiler.target.arch == "x86_64":
                compiler.postlink += [
                    os.path.join(lib_folder, "tier1.a"),
                    os.path.join(lib_folder, "mathlib.a"),
                ]
            else:
                compiler.postlink += [
                    os.path.join(lib_folder, "tier1_i486.a"),
                    os.path.join(lib_folder, "mathlib_i486.a"),
                ]

            if sdk.name in ["blade", "insurgency", "doi", "csgo"]:
                if compiler.target.arch == "x86_64":
                    compiler.postlink += [os.path.join(lib_folder, "interfaces.a")]
                else:
                    compiler.postlink += [os.path.join(lib_folder, "interfaces_i486.a")]

        dynamic_libs = []
        if compiler.target.platform == "linux":
            if sdk.name in [
                "css",
                "hl2dm",
                "dods",
                "tf2",
                "sdk2013",
                "bms",
                "nucleardawn",
                "l4d2",
                "insurgency",
                "doi",
            ]:
                dynamic_libs = ["libtier0_srv.so", "libvstdlib_srv.so"]
            elif compiler.target.arch == "x86_64" and sdk.name in ["csgo", "mock"]:
                dynamic_libs = ["libtier0_client.so", "libvstdlib_client.so"]
            elif sdk.name in ["l4d", "blade", "insurgency", "doi", "csgo"]:
                dynamic_libs = ["libtier0.so", "libvstdlib.so"]
            else:
                dynamic_libs = ["tier0_i486.so", "vstdlib_i486.so"]
        elif compiler.target.platform == "mac":
            compiler.linkflags.append("-liconv")
            dynamic_libs = ["libtier0.dylib", "libvstdlib.dylib"]
        elif compiler.target.platform == "windows":
            libs = ["tier0", "tier1", "vstdlib", "mathlib"]
            if sdk.name in ["swarm", "blade", "insurgency", "doi", "csgo"]:
                libs.append("interfaces")
            for lib in libs:
                if sdk.name in ["l4d", "l4d2"]:
                    # l4d and l4d2 engines don't have 64-bit libs
                    lib_path = os.path.join(sdk.path, "lib", "public", lib) + ".lib"
                else:
                    if compiler.target.arch == "x86":
                        lib_path = (
                            os.path.join(sdk.path, "lib", "public", "x86", lib) + ".lib"
                        )
                    elif compiler.target.arch == "x86_64":
                        lib_path = (
                            os.path.join(sdk.path, "lib", "public", "x64", lib) + ".lib"
                        )
                compiler.linkflags.append(lib_path)

        for library in dynamic_libs:
            source_path = os.path.join(lib_folder, library)
            output_path = os.path.join(binary.localFolder, library)

            # Ensure the output path exists.
            context.AddFolder(binary.localFolder)
            output = context.AddSymlink(source_path, output_path)

            compiler.weaklinkdeps += [output]
            compiler.linkflags[0:0] = [library]

        return binary

    def HL2Config(self, project, context, compiler, name, sdk):
        binary = project.Configure(
            compiler,
            name,
            "{0} - {1} {2}".format(self.tag, sdk.name, compiler.target.arch),
        )
        self.AddVersioning(binary)
        return self.ConfigureForHL2(context, binary, sdk)

    def HL2ExtConfig(self, project, context, compiler, name, sdk):
        binary = project.Configure(
            compiler,
            name,
            "{0} - {1} {2}".format(self.tag, sdk.name, compiler.target.arch),
        )
        self.AddVersioning(binary)
        self.ConfigureForHL2(context, binary, sdk)
        self.ConfigureForExtension(context, binary.compiler)
        return binary


Extension = ExtensionConfig()
Extension.detectProductVersion()
Extension.detectSDKs()
Extension.configure()

if Extension.use_auto_versioning():
    Extension.generated_headers = builder.Build("buildbot/Versioning")

builder.targets = builder.CloneableList(Extension.all_targets)
# Add additional buildscripts here
BuildScripts = ["src/AMBuilder", "buildbot/PackageScript"]

builder.Build(BuildScripts, {"Extension": Extension})