build.zig

const std = @import("std");

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

    const gengen = b.addExecutable(.{
        .name = "gengen",
        .root_module = b.createModule(.{
            .root_source_file = b.path("src/tools/gengen.zig"),
            .target = b.graph.host,
        }),
    });
    const gengen_step = b.addRunArtifact(gengen);
    const gengen_output = gengen_step.addOutputFileArg("gen.zig");
    const update_gen = b.addUpdateSourceFiles();
    update_gen.addCopyFileToSource(gengen_output, "src/gen.zig");
    const format_gen = b.addFmt(.{
        .check = false,
        .paths = &.{"src/gen.zig"},
    });
    format_gen.step.dependOn(&update_gen.step);

    const update_gen_step = b.step("gengen", "generate src/gen.zig");
    update_gen_step.dependOn(&update_gen.step);
    update_gen_step.dependOn(&format_gen.step);

    const mod = b.addModule("h2z", .{
        .root_source_file = b.path("src/h2z.zig"),
        .target = target,
    });
    const mod_tests = b.addTest(.{
        .root_module = mod,
    });
    const run_mod_tests = b.addRunArtifact(mod_tests);

    const spec_client_step = b.step("h2specc", "build and install the h2specd client executable");
    const spec_client_exe = b.addExecutable(.{
        .name = "h2specc",
        .root_module = b.createModule(.{
            .root_source_file = b.path("src/h2specc.zig"),
            .target = target,
            .optimize = optimize,
        }),
    });
    spec_client_step.dependOn(&b.addInstallArtifact(spec_client_exe, .{}).step);

    const run_spec_client_tests = b.addSystemCommand(&.{
        "h2specd",
        "--verbose",
        "--timeout",
        "1",
        "--exec",
    });
    run_spec_client_tests.addFileArg(spec_client_exe.getEmittedBin());
    run_spec_client_tests.step.dependOn(&spec_client_exe.step);

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

    const h2spec_test_step = b.step("test:h2spec", "build and run the h2specd client for testing");
    h2spec_test_step.dependOn(&run_spec_client_tests.step);
}