shaderc: move to by-name, unvendor glslang, 2025.3 -> 2025.5

pkgs/by-name/sh/shaderc/package.nix

@@ -0,0 +1,80 @@
+{
+  lib,
+  stdenv,
+  fetchFromGitHub,
+  replaceVars,
+  versionCheckHook,
+  cmake,
+  python3,
+  darwin,
+  cctools,
+  glslang,
+  spirv-tools,
+}:
+stdenv.mkDerivation (finalAttrs: {
+  pname = "shaderc";
+  version = "2025.5";
+
+  outputs = [
+    "out"
+    "lib"
+    "bin"
+    "dev"
+    "static"
+  ];
+
+  src = fetchFromGitHub {
+    owner = "google";
+    repo = "shaderc";
+    rev = "v${finalAttrs.version}";
+    hash = "sha256-PmGRZDXblrBhZe16QfpHfRdsRhXnGsN7o+qh14nlOUQ=";
+  };
+
+  patches = [
+    (replaceVars ./unvendor-glslang.patch {
+      shaderc-version = finalAttrs.version;
+      spirv-tools-version = spirv-tools.version;
+      glslang-version = glslang.version;
+    })
+  ];
+
+  postPatch = ''
+    patchShebangs --build utils/
+
+    substituteInPlace cmake/*.pc.in \
+      --replace-fail $'{prefix}/@CMAKE_INSTALL_' '@CMAKE_INSTALL_FULL_'
+  '';
+
+  nativeBuildInputs = [
+    cmake
+    python3
+  ]
+  ++ lib.optionals stdenv.hostPlatform.isDarwin [ cctools ]
+  ++ lib.optionals (stdenv.hostPlatform.isDarwin && stdenv.hostPlatform.isAarch64) [
+    darwin.autoSignDarwinBinariesHook
+  ];
+
+  propagatedBuildInputs = [
+    glslang
+  ];
+
+  postInstall = ''
+    moveToOutput "lib/*.a" $static
+  '';
+
+  cmakeFlags = [ "-DSHADERC_SKIP_TESTS=ON" ];
+
+  nativeInstallCheckInputs = [
+    versionCheckHook
+  ];
+  versionCheckProgramArg = "--version";
+  doInstallCheck = true;
+
+  meta = {
+    description = "Collection of tools, libraries and tests for shader compilation";
+    inherit (finalAttrs.src.meta) homepage;
+    license = lib.licenses.asl20;
+    platforms = lib.platforms.all;
+    mainProgram = "glslc";
+  };
+})

pkgs/by-name/sh/shaderc/unvendor-glslang.patch

@@ -0,0 +1,49 @@
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 06f5395..a23a573 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -130,7 +130,9 @@ endif(MSVC)
+
+ # Configure subdirectories.
+ # We depend on these for later projects, so they should come first.
+-add_subdirectory(third_party)
++find_package(glslang REQUIRED CONFIG)
++get_target_property(glslang_includes glslang::glslang INTERFACE_INCLUDE_DIRECTORIES)
++set(glslang_SOURCE_DIR "${glslang_includes}/glslang")
+
+ add_subdirectory(libshaderc_util)
+ add_subdirectory(libshaderc)
+@@ -142,7 +144,7 @@ endif()
+ add_custom_target(build-version
+   ${Python_EXECUTABLE}
+   ${CMAKE_CURRENT_SOURCE_DIR}/utils/update_build_version.py
+-  ${shaderc_SOURCE_DIR} ${spirv-tools_SOURCE_DIR} ${glslang_SOURCE_DIR} ${CMAKE_CURRENT_BINARY_DIR}/build-version.inc
++  dummy dummy dummy ${CMAKE_CURRENT_BINARY_DIR}/build-version.inc
+   COMMENT "Update build-version.inc in the Shaderc build directory (if necessary).")
+
+ function(define_pkg_config_file NAME LIBS)
+diff --git a/utils/update_build_version.py b/utils/update_build_version.py
+index b7ce5b8..fcb0432 100755
+--- a/utils/update_build_version.py
++++ b/utils/update_build_version.py
+@@ -120,11 +120,15 @@ def get_version_string(project, directory):
+     """Returns a detailed version string for a given project with its
+     directory, which consists of software version string and git description
+     string."""
+-    detailed_version_string_lst = [project]
+-    if project != 'glslang':
+-        detailed_version_string_lst.append(deduce_software_version(directory))
+-    detailed_version_string_lst.append(describe(directory).replace('"', '\\"'))
+-    return ' '.join(detailed_version_string_lst)
++    match project:
++        case "shaderc":
++            return "shaderc v@shaderc-version@"
++        case "spirv-tools":
++            return "spirv-tools v@spirv-tools-version@"
++        case "glslang":
++            return "glslang v@glslang-version@"
++        case _:
++            sys.exit(1)
+
+
+ def main():

pkgs/top-level/all-packages.nix

@@ -10187,10 +10187,6 @@ with pkgs;
     protobuf = protobuf_21; # https://github.com/blueprint-freespeech/ricochet-refresh/issues/178
   };
 
-  shaderc = callPackage ../development/compilers/shaderc {
-    inherit (darwin) autoSignDarwinBinariesHook;
-  };
-
   scheherazade-new = scheherazade.override {
     version = "4.400";
   };