..

0	const std = @import("std");
1
2	// Although this function looks imperative, note that its job is to
3	// declaratively construct a build graph that will be executed by an external
4	// runner.
5	pub fn build(b: *std.Build) void {
6	// Standard target options allows the person running `zig build` to choose
7	// what target to build for. Here we do not override the defaults, which
8	// means any target is allowed, and the default is native. Other options
9	// for restricting supported target set are available.
10	const target = b.standardTargetOptions(.{});
11
12	// Standard optimization options allow the person running `zig build` to select
13	// between Debug, ReleaseSafe, ReleaseFast, and ReleaseSmall. Here we do not
14	// set a preferred release mode, allowing the user to decide how to optimize.
15	const optimize = b.standardOptimizeOption(.{});
16
17	const exe = b.addExecutable(.{
18	.name = "rig",
19	.root_source_file = b.path("src/main.zig"),
20	.target = target,
21	.optimize = optimize,
22	});
23
24	// This declares intent for the executable to be installed into the
25	// standard location when the user invokes the "install" step (the default
26	// step when running `zig build`).
27	b.installArtifact(exe);
28
29	// This *creates* a Run step in the build graph, to be executed when another
30	// step is evaluated that depends on it. The next line below will establish
31	// such a dependency.
32	const run_cmd = b.addRunArtifact(exe);
33
34	// By making the run step depend on the install step, it will be run from the
35	// installation directory rather than directly from within the cache directory.
36	// This is not necessary, however, if the application depends on other installed
37	// files, this ensures they will be present and in the expected location.
38	run_cmd.step.dependOn(b.getInstallStep());
39
40	// This allows the user to pass arguments to the application in the build
41	// command itself, like this: `zig build run -- arg1 arg2 etc`
42	if (b.args) |args| {
43	run_cmd.addArgs(args);
44	}
45
46	// This creates a build step. It will be visible in the `zig build --help` menu,
47	// and can be selected like this: `zig build run`
48	// This will evaluate the `run` step rather than the default, which is "install".
49	const run_step = b.step("run", "Run the app");
50	run_step.dependOn(&run_cmd.step);
51
52	const exe_unit_tests = b.addTest(.{
53	.root_source_file = b.path("src/main.zig"),
54	.target = target,
55	.optimize = optimize,
56	});
57
58	const run_exe_unit_tests = b.addRunArtifact(exe_unit_tests);
59
60	// Similar to creating the run step earlier, this exposes a `test` step to
61	// the `zig build --help` menu, providing a way for the user to request
62	// running the unit tests.
63	const test_step = b.step("test", "Run unit tests");
64	test_step.dependOn(&run_exe_unit_tests.step);
65	}