example: use addSystemCommand instead of shader compile step

examples/build.zig

@@ -1,7 +1,6 @@
 const std = @import("std");
 
 const vkgen = @import("vulkan_zig");
-const ShaderCompileStep = vkgen.ShaderCompileStep;
 
 pub fn build(b: *std.Build) void {
     const target = b.standardTargetOptions(.{});
@@ -33,15 +32,27 @@ pub fn build(b: *std.Build) void {
         .root_source_file = vk_generate_cmd.addOutputFileArg("vk.zig"),
     });
 
-    const shaders = ShaderCompileStep.create(
-        b,
-        .{ .real_path = "glslc" },
-        &[_][]const u8{"--target-env=vulkan1.2"},
+    const vert_cmd = b.addSystemCommand(&.{
+        "glslc",
+        "--target-env=vulkan1.2",
         "-o",
-    );
-    shaders.add("triangle_vert", "shaders/triangle.vert", .{});
-    shaders.add("triangle_frag", "shaders/triangle.frag", .{});
-    triangle_exe.root_module.addImport("shaders", shaders.getModule());
+    });
+    const vert_spv = vert_cmd.addOutputFileArg("vert.spv");
+    vert_cmd.addFileArg(b.path("shaders/triangle.vert"));
+    triangle_exe.root_module.addAnonymousImport("vertex_shader", .{
+        .root_source_file = vert_spv,
+    });
+
+    const frag_cmd = b.addSystemCommand(&.{
+        "glslc",
+        "--target-env=vulkan1.2",
+        "-o",
+    });
+    const frag_spv = frag_cmd.addOutputFileArg("frag.spv");
+    frag_cmd.addFileArg(b.path("shaders/triangle.frag"));
+    triangle_exe.root_module.addAnonymousImport("fragment_shader", .{
+        .root_source_file = frag_spv,
+    });
 
     const triangle_run_cmd = b.addRunArtifact(triangle_exe);
     triangle_run_cmd.step.dependOn(b.getInstallStep());

examples/triangle.zig

@@ -1,11 +1,13 @@
 const std = @import("std");
 const vk = @import("vulkan");
 const c = @import("c.zig");
-const shaders = @import("shaders");
 const GraphicsContext = @import("graphics_context.zig").GraphicsContext;
 const Swapchain = @import("swapchain.zig").Swapchain;
 const Allocator = std.mem.Allocator;
 
+const vert_spv align(@alignOf(u32)) = @embedFile("vertex_shader").*;
+const frag_spv align(@alignOf(u32)) = @embedFile("fragment_shader").*;
+
 const app_name = "vulkan-zig triangle example";
 
 const Vertex = struct {
@@ -362,14 +364,14 @@ fn createPipeline(
     render_pass: vk.RenderPass,
 ) !vk.Pipeline {
     const vert = try gc.dev.createShaderModule(&.{
-        .code_size = shaders.triangle_vert.len,
-        .p_code = @ptrCast(&shaders.triangle_vert),
+        .code_size = vert_spv.len,
+        .p_code = @ptrCast(&vert_spv),
     }, null);
     defer gc.dev.destroyShaderModule(vert, null);
 
     const frag = try gc.dev.createShaderModule(&.{
-        .code_size = shaders.triangle_frag.len,
-        .p_code = @ptrCast(&shaders.triangle_frag),
+        .code_size = frag_spv.len,
+        .p_code = @ptrCast(&frag_spv),
     }, null);
     defer gc.dev.destroyShaderModule(frag, null);