add metal rule stub

3 files changed, 32 insertions, 3 deletions

diff --git a/tests/projects/objc/metal_app/xmake.lua b/tests/projects/objc/metal_app/xmake.lua
index 54a94b26d..2a808a5fb 100644
--- a/tests/projects/objc/metal_app/xmake.lua
+++ b/tests/projects/objc/metal_app/xmake.lua
@@ -5,7 +5,7 @@ target("HelloTriangle")
     add_includedirs("Renderer")
     add_frameworks("MetalKit")
     add_mflags("-fmodules")
-    add_files("Renderer/*.m")
+    add_files("Renderer/*.m", "Renderer/*.metal")
     if is_plat("macosx") then
         add_files("Application/main.m")
         add_files("Application/AAPLViewController.m")
diff --git a/xmake/rules/xcode/application/xmake.lua b/xmake/rules/xcode/application/xmake.lua
index 5984bbb55..51232f033 100644
--- a/xmake/rules/xcode/application/xmake.lua
+++ b/xmake/rules/xcode/application/xmake.lua
@@ -21,8 +21,8 @@
 -- define rule: xcode application
 rule("xcode.application")
 
-    -- support add_files("Info.plist", "*.storyboard", "*.xcassets")
-    add_deps("xcode.info_plist", "xcode.storyboard", "xcode.xcassets")
+    -- support add_files("Info.plist", "*.storyboard", "*.xcassets", "*.metal")
+    add_deps("xcode.info_plist", "xcode.storyboard", "xcode.xcassets", "xcode.metal")
 
     -- we must set kind before target.on_load(), may we will use target in on_load()
     before_load("load")
diff --git a/xmake/rules/xcode/metal/xmake.lua b/xmake/rules/xcode/metal/xmake.lua
new file mode 100644
index 000000000..24c4ecb2a
--- /dev/null
+++ b/xmake/rules/xcode/metal/xmake.lua
@@ -0,0 +1,29 @@
+--!A cross-platform build utility based on Lua
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+-- Copyright (C) 2015-present, TBOOX Open Source Group.
+--
+-- @author      ruki
+-- @file        xmake.lua
+--
+
+rule("xcode.metal")
+
+    -- support add_files("*.metal")
+    set_extensions(".metal")
+
+    -- build *.metal to *.metallib
+    on_build_file(function (target, sourcefile, opt)
+
+    end)