import subprocess
import os

from lib.make import *
from lib import cpp, arch


version("16.5.0")
description("Khronos-reference front end for GLSL/ESSL, partial front end for HLSL, and a SPIR-V generator")
maintainer("sisungo <sisungo@icloud.com>")
source_managed("github://KhronosGroup/glslang#16.5.0")

builddep("shortcut/cmake")
builddep("shortcut/c++")
builddep("spirv-tools-dev")


def build():
    cpp.cmake([
        "-DALLOW_EXTERNAL_SPIRV_TOOLS=ON",
        f"-DSPIRV-Tools-opt_DIR=/lib/{arch.get_target()}/cmake/SPIRV-Tools-opt",
        f"-DSPIRV-Tools_DIR=/lib/{arch.get_target()}/cmake/SPIRV-Tools",
        "-DGLSLANG_TESTS=OFF",
        f"-DCMAKE_INSTALL_LIBDIR={get_prefix('glslang-dev')}/lib",
        f"-DCMAKE_INSTALL_INCLUDEDIR={get_prefix('glslang-dev')}/include",
        f"-DCMAKE_INSTALL_BINDIR={get_prefix('glslang')}/bin",
    ])
    cpp.ninja()
    cpp.ninja_install()

on_build(build)


def pack_glslang(composer):
    composer.add_dir("bin")

package("glslang")
dep("libcxx @same-arch")
on_pack(pack_glslang)

package("glslang-dev")
dep("libcxx-dev @same-arch")
cpp.use_auto_pack(["lib", "dev"])