nyotun/build.zig

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const std = @import("std");
pub fn build(b: *std.Build) void {
const target = b.standardTargetOptions(.{});
const optimize = b.standardOptimizeOption(.{});
const exe = b.addExecutable(.{
.name = "nyotun",
.root_source_file = b.path("src/main.zig"),
.target = target,
.optimize = optimize,
});
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const setcap = b.option(bool, "setcap", "run setcap before executing the test binary") orelse false;
const sudo = b.option([]const u8, "sudo", "sudo command for setcap command") orelse null;
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// This declares intent for the executable to be installed into the
// standard location when the user invokes the "install" step (the default
// step when running `zig build`).
b.installArtifact(exe);
// This *creates* a Run step in the build graph, to be executed when another
// step is evaluated that depends on it. The next line below will establish
// such a dependency.
const run_cmd = b.addRunArtifact(exe);
// By making the run step depend on the install step, it will be run from the
// installation directory rather than directly from within the cache directory.
// This is not necessary, however, if the application depends on other installed
// files, this ensures they will be present and in the expected location.
run_cmd.step.dependOn(b.getInstallStep());
// This allows the user to pass arguments to the application in the build
// command itself, like this: `zig build run -- arg1 arg2 etc`
if (b.args) |args| {
run_cmd.addArgs(args);
}
// This creates a build step. It will be visible in the `zig build --help` menu,
// and can be selected like this: `zig build run`
// This will evaluate the `run` step rather than the default, which is "install".
const run_step = b.step("run", "Run the app");
run_step.dependOn(&run_cmd.step);
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const unit_tests = b.addTest(.{
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.root_source_file = b.path("src/test_all.zig"),
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.target = target,
.optimize = optimize,
});
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const run_unit_tests = b.addRunArtifact(unit_tests);
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// TODO learn `zig build` and complain only during unit tests.
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if (setcap) {
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if (sudo == null) {
std.log.warn("non-null setcap and no sudo command probably won't work. Add sudo.", .{});
}
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const set_cap_cmd = b.addSystemCommand(if (sudo) |cmd|
&.{ cmd, "setcap", "cap_net_admin=+ep" }
else
&.{ "setcap", "cap_net_admin=+ep" });
set_cap_cmd.addArtifactArg(unit_tests);
run_unit_tests.step.dependOn(&set_cap_cmd.step);
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} else {
std.log.warn("-Dsetcap not set. Unit tests will probably fail.", .{});
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}
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// Similar to creating the run step earlier, this exposes a `test` step to
// the `zig build --help` menu, providing a way for the user to request
// running the unit tests.
const test_step = b.step("test", "Run unit tests");
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test_step.dependOn(&run_unit_tests.step);
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}