build.zig

const std = @import("std");

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

    const trace = b.option(bool, "trace", "Enable tracing") orelse false;
    const gas = b.option(bool, "gas", "Enable gas output (only if tracing is enabled)") orelse false;
    const debug = b.option(bool, "debug", "Debug opcodes") orelse false;
    const bench = b.option(bool, "bench", "Benchmark mode (print time)") orelse false;
    const options = b.addOptions();
    options.addOption(bool, "trace", trace);
    options.addOption(bool, "gas", gas);
    options.addOption(bool, "debug", debug);
    options.addOption(bool, "bench", bench);

    const lib = b.addStaticLibrary(.{
        .name = "zee",
        .root_source_file = b.path("src/root.zig"),
        .target = target,
        .optimize = optimize,
    });
    b.installArtifact(lib);

    var testOptions: std.Build.TestOptions = .{
        .root_source_file = b.path("src/test.zig"),
        .target = target,
        .optimize = optimize,
    };
    if (b.args) |args| {
        testOptions.filters = args;
    }
    const lib_unit_tests = b.addTest(testOptions);

    lib_unit_tests.root_module.addOptions("config", options);

    const run_lib_unit_tests = b.addRunArtifact(lib_unit_tests);

    const test_step = b.step("test", "Run unit tests");
    test_step.dependOn(&run_lib_unit_tests.step);

    // Examples
    const examples_step = b.step("example", "Run example");

    const example_exe = b.addExecutable(.{
        .name = "run example",
        .root_source_file = b.path("examples/example.zig"),
        .target = target,
        .optimize = optimize,
    });

    const zee_module = b.addModule("zee", .{
        .root_source_file = b.path("src/root.zig"),
    });
    zee_module.addOptions("config", options);

    example_exe.root_module.addImport("zee", zee_module);

    const example_run = b.addRunArtifact(example_exe);
    if (b.args) |args| {
        example_run.addArgs(args);
    }
    examples_step.dependOn(&example_run.step);
}