build.zig

const std = @import("std");

pub const min_zig_version = std.SemanticVersion{ .major = 0, .minor = 13, .patch = 0 };

pub fn build(b: *std.Build) !void {
    var installed_ver = @import("builtin").zig_version;
    installed_ver.build = null;

    if (installed_ver.order(min_zig_version) == .lt) {
        std.log.err("\n" ++
            \\---------------------------------------------------------------------------
            \\
            \\error: Installed Zig compiler version is too old.
            \\
        , .{});
        std.log.err("Minimum required version: \x1b[32m{any}\x1b[0m", .{min_zig_version});
        std.log.err("Installed version: \x1b[31m{any}\x1b[0m\n", .{installed_ver});
        std.log.err(
            \\Please install a newer version & try again.
            \\Latest version can be found here: https://ziglang.org/download/
            \\
            \\---------------------------------------------------------------------------
            \\
        , .{});
        return error.ZigTooOld;
    }

    const target = b.standardTargetOptions(.{});
    const optimize = b.standardOptimizeOption(.{});

    const exe = b.addExecutable(.{
        .name = "qoi-zig",
        .root_source_file = b.path("src/main.zig"),
        .target = target,
        .optimize = optimize,
    });

    b.installArtifact(exe);
    const run_cmd = b.addRunArtifact(exe);
    run_cmd.step.dependOn(b.getInstallStep());
    if (b.args) |args| {
        run_cmd.addArgs(args);
    }

    const run_step = b.step("run", "Run the app");
    run_step.dependOn(&run_cmd.step);

    const unit_tests = b.addTest(.{
        .root_source_file = b.path("src/main.zig"),
        .target = target,
        .optimize = optimize,
    });

    const run_unit_tests = b.addRunArtifact(unit_tests);

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