build.zig

const std = @import("std");

pub const Package = struct {
    module: *std.Build.Module,

    pub fn link(pkg: Package, exe: *std.Build.CompileStep) void {
        exe.addModule("zig-metal", pkg.module);
    }
};

pub fn package(b: *std.Build) Package {
    return .{
        .module = b.createModule(
            .{
                .source_file = .{ .path = thisDir() ++ "/src/main.zig" },
                .dependencies = &[_]std.build.ModuleDependency{
                    .{
                        .name = "zigtrait",
                        .module = zigTraitModule(b),
                    },
                },
            },
        ),
    };
}

pub fn zigTraitModule(b: *std.Build) *std.Build.Module {
    return b.createModule(.{ .source_file = .{ .path = thisDir() ++ "/libs/zigtrait/src/zigtrait.zig" } });
}

pub fn addExample(
    b: *std.Build,
    target: std.zig.CrossTarget,
    optimize: std.builtin.OptimizeMode,
    comptime name: []const u8,
    comptime path: []const u8,
) void {
    const exe = b.addExecutable(.{
        .name = name,
        .root_source_file = .{ .path = path ++ "/main.zig" },
        .target = target,
        .optimize = optimize,
    });

    b.installArtifact(exe);

    var pkg = package(b);

    pkg.link(exe);
    // exe.addModule("zigtrait", zigTraitModule(b));
    exe.linkFramework("Foundation");
    exe.linkFramework("AppKit");
    exe.linkFramework("Metal");
    exe.linkFramework("MetalKit");

    const run_cmd = b.addRunArtifact(exe);

    const run_step = b.step("run-" ++ name, "Run the sample '" ++ name ++ "'");
    run_step.dependOn(&run_cmd.step);
}

pub fn build(b: *std.Build) void {
    const target = b.standardTargetOptions(.{});
    const optimize = b.standardOptimizeOption(.{});

    addExample(b, target, optimize, "window", "examples/01-window");
    addExample(b, target, optimize, "primitive", "examples/02-primitive");
    addExample(b, target, optimize, "argbuffers", "examples/03-argbuffers");
    addExample(b, target, optimize, "animation", "examples/04-animation");
    addExample(b, target, optimize, "instancing", "examples/05-instancing");
    addExample(b, target, optimize, "perspective", "examples/06-perspective");
    addExample(b, target, optimize, "lighting", "examples/07-lighting");
    addExample(b, target, optimize, "texturing", "examples/08-texturing");
    addExample(b, target, optimize, "compute", "examples/09-compute");
    addExample(b, target, optimize, "compute-to-render", "examples/10-compute_to_render");
}

inline fn thisDir() []const u8 {
    return comptime std.fs.path.dirname(@src().file) orelse ".";
}