allemang.d/vulkan-zig
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make build.zig friendly to the zig package manager

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This commit is contained in:
InKryption
2023-02-16 02:56:15 +01:00
parent ef75aa0fd6
commit c294b849d2
2 changed files with 27 additions and 6 deletions
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31
build.zig
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@@ -5,15 +5,36 @@ const Step = std.build.Step;
pub fn build(b: *std.Build) void {
const target = b.standardTargetOptions(.{});
const optimize = b.standardOptimizeOption(.{});
const vk_xml_path: ?[]const u8 = b.option([]const u8, "registry", "Override the path to the Vulkan registry");
// using the package manager, this artifact can be obtained by the user
// through `b.dependency(<name in build.zig.zon>, .{}).artifact("generator")`.
// with that, the user need only `.addArg("path/to/vk.xml")`, and then obtain
// a file source to the generated code with `.addOutputArg("vk.zig")`
const generator_exe = b.addExecutable(.{
.name = "vulkan-zig-generator",
.name = "generator",
.root_source_file = .{ .path = "generator/main.zig" },
.target = target,
.optimize = optimize,
});
generator_exe.install();
// or they can skip all that, and just make sure to pass `.registry = "path/to/vk.xml"` to `b.dependency`,
// and then obtain the module directly via `.module("vulkan-zig")`.
if (vk_xml_path) |path| {
const generate_cmd = b.addRunArtifact(generator_exe);
if (!std.fs.path.isAbsolute(path)) @panic("Make sure to assign an absolute path to the `registry` option (see: std.Build.pathFromRoot).\n");
generate_cmd.addArg(path);
b.addModule(.{
.name = "vulkan-zig",
.source_file = generate_cmd.addOutputFileArg("vk.zig"),
});
}
// remaindure of the script is for local testing
const triangle_exe = b.addExecutable(.{
.name = "triangle",
.root_source_file = .{ .path = "examples/triangle.zig" },
@@ -24,9 +45,8 @@ pub fn build(b: *std.Build) void {
triangle_exe.linkLibC();
triangle_exe.linkSystemLibrary("glfw");
const vk_xml_path = b.option([]const u8, "vulkan-registry", "Override the path to the Vulkan registry") orelse "examples/vk.xml";
const gen = vkgen.VkGenerateStep.create(b, vk_xml_path, "vk.zig");
const example_registry = b.option([]const u8, "example-registry", "Override the path to the Vulkan registry") orelse "examples/vk.xml";
const gen = vkgen.VkGenerateStep.create(b, example_registry, "vk.zig");
triangle_exe.addModule("vulkan", gen.getModule());
const shaders = vkgen.ShaderCompileStep.create(
@@ -39,8 +59,9 @@ pub fn build(b: *std.Build) void {
triangle_exe.addModule("shaders", shaders.getModule());
const triangle_run_cmd = b.addRunArtifact(triangle_exe);
triangle_run_cmd.condition = .always;
triangle_run_cmd.step.dependOn(b.getInstallStep());
triangle_run_cmd.condition = .always;
const triangle_run_step = b.step("run-triangle", "Run the triangle example");
triangle_run_step.dependOn(&triangle_run_cmd.step);