From c883f3c1c777357957e30fc44cf987e8bb62c818 Mon Sep 17 00:00:00 2001
From: Patrick Wuttke <mewin@mewin.de>
Date: Sun, 19 Jan 2025 01:17:35 +0100
Subject: [PATCH] Added DXC recipe.

---
 SConscript            |  4 ++++
 recipes/dxc/recipe.py | 31 +++++++++++++++++++++++++++++++
 2 files changed, 35 insertions(+)
 create mode 100644 recipes/dxc/recipe.py

diff --git a/SConscript b/SConscript
index a1b10df..7e5123c 100644
--- a/SConscript
+++ b/SConscript
@@ -92,6 +92,7 @@ def _parse_lib_conf(env: Environment, lib_conf: dict) -> None:
                CPPDEFINES = lib_conf.get('CPPDEFINES', []),
                LIBPATH = lib_conf.get('LIBPATH', []),
                LIBS = lib_conf.get('LIBS', []),
+               LINKFLAGS = lib_conf.get('LINKFLAGS', []),
                JINJA_TEMPLATE_SEARCHPATH = lib_conf.get('JINJA_TEMPLATE_SEARCHPATH', []))
 
 def _inject_list(kwargs: dict, dependency: dict, list_name: str) -> None:
@@ -107,6 +108,7 @@ def _inject_dependency(dependency, kwargs: dict, add_sources: bool = True) -> No
         _inject_list(kwargs, dependency, 'CPPDEFINES')
         _inject_list(kwargs, dependency, 'LIBPATH')
         _inject_list(kwargs, dependency, 'LIBS')
+        _inject_list(kwargs, dependency, 'LINKFLAGS')
         if add_sources and 'ADDITIONAL_SOURCES' in dependency and hasattr(kwargs['source'], 'extend'):
             kwargs['source'].extend(dependency['ADDITIONAL_SOURCES'])
         if 'DEPENDENCIES' in dependency:
@@ -118,6 +120,7 @@ def _inject_dependency(dependency, kwargs: dict, add_sources: bool = True) -> No
         _inject_list(kwargs, dependency.cook_result, 'CPPDEFINES')
         _inject_list(kwargs, dependency.cook_result, 'LIBPATH')
         _inject_list(kwargs, dependency.cook_result, 'LIBS')
+        _inject_list(kwargs, dependency.cook_result, 'LINKFLAGS')
         for depdep in dependency.depdeps:
             _inject_dependency(depdep, kwargs)
     elif isinstance(dependency, _Target):
@@ -126,6 +129,7 @@ def _inject_dependency(dependency, kwargs: dict, add_sources: bool = True) -> No
         _inject_list(kwargs, dependency.kwargs, 'LIBPATH')
         _inject_list(kwargs, dependency.kwargs, 'LIBS')
         _inject_list(kwargs, {'LIBS': [dependency]}, 'LIBS')
+        _inject_list(kwargs, dependency.kwargs, 'LINKFLAGS')
         for depdep in dependency.dependencies:
             _inject_dependency(depdep, kwargs)
 
diff --git a/recipes/dxc/recipe.py b/recipes/dxc/recipe.py
new file mode 100644
index 0000000..8b6a685
--- /dev/null
+++ b/recipes/dxc/recipe.py
@@ -0,0 +1,31 @@
+
+
+import re
+from SCons.Script import *
+
+
+def _git_cook(env: Environment, repo: dict) -> dict:
+    checkout_root = repo['checkout_root']
+    build_result = env.CMakeProject(checkout_root, generate_args = [
+        f'-C{repo['checkout_root']}/cmake/caches/PredefinedParams.cmake',
+        '-DLLVM_INSTALL_TOOLCHAIN_ONLY=ON'
+    ])
+
+    link_flags = []
+    if env['COMPILER_FAMILY'] in ('gcc', 'clang') and env['BUILD_TYPE'] != 'release':
+        link_flags.append(f'-Wl,-rpath,{build_result["LIBPATH"][0]}')
+    return {
+        'CPPPATH': build_result['CPPPATH'],
+        'LIBS': [env.FindLib('dxcompiler', type='shared', paths=build_result['LIBPATH'])],
+        'LINKFLAGS': link_flags
+    }
+
+
+env.GitRecipe(
+    globals = globals(),
+    repo_name = 'dxc',
+    repo_url = 'https://github.com/microsoft/DirectXShaderCompiler.git',
+    tag_pattern = re.compile(r'^v([0-9]+)\.([0-9]+)\.([0-9]+)$'),
+    tag_fn = lambda version: f'v{version[0]}.{version[1]}.{version[2]}',
+    cook_fn = _git_cook
+)