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const std = @import("std");
pub fn build(b: *std.Build) void {
const target = b.standardTargetOptions(.{});
const optimize = b.standardOptimizeOption(.{});
// Boolean flag: -Dverbose
const verbose = b.option(bool, "verbose", "Enable verbose logging") orelse false;
// Integer option: -Dport=<n>
const port = b.option(u16, "port", "TCP port to listen on") orelse 8080;
// Enum option: -Dbackend=<name>
const Backend = enum { memory, sqlite, postgres };
const backend = b.option(Backend, "backend", "Storage backend") orelse .memory;
// Hyphenated key option: -Dmax-conn=<n> (tests USER_OPTION_REGEX with hyphens)
const max_conn = b.option(u32, "max-conn", "Maximum simultaneous connections") orelse 128;
const options = b.addOptions();
options.addOption(bool, "verbose", verbose);
options.addOption(u16, "port", port);
options.addOption(Backend, "backend", backend);
options.addOption(u32, "max_conn", max_conn);
const exe = b.addExecutable(.{
.name = "build-options-demo",
.root_module = b.createModule(.{
.root_source_file = b.path("src/main.zig"),
.target = target,
.optimize = optimize,
.imports = &.{
.{ .name = "build_options", .module = options.createModule() },
},
}),
});
b.installArtifact(exe);
const run_cmd = b.addRunArtifact(exe);
if (b.args) |args| run_cmd.addArgs(args);
const run_step = b.step("run", "Run the build-options demo");
run_step.dependOn(&run_cmd.step);
}
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