// build.vrmm — a VuurRaaf Make Module: build instructions for the toolchain,
// written in VuurRaaf itself (like V's .vsh, but for this language).
//
//   ./bin/vr make -f examples/build.vrmm          build + run hello
//   ./bin/vr make -f examples/build.vrmm multi    compile/link/run a 2-file program
//   ./bin/vr make -f examples/build.vrmm test     run tests.vr
//   ./bin/vr make -f examples/build.vrmm clean    remove artifacts
//   ./bin/vr make -f examples/build.vrmm deploy --prod    deploy() with args()
//
// Paths are relative to the working directory; build_root() returns this
// module's own directory for scripts that want absolute paths.

fn main() {
	// compile + link + run in one step
	build_run("examples/hello.vr")
}

fn multi() {
	// drive each toolchain stage explicitly
	let root = build_root()
	let lib = build_compile(build_join(root, "lib.vr"), build_join(root, "lib.vobj"))
	let use = build_compile(build_join(root, "use_lib.vr"), build_join(root, "use_lib.vobj"))
	let bin = build_link([lib, use], build_join(root, "use_lib.vbin"))
	build_run(bin)
}

fn test() {
	// run every test_* function; fails the build if any test fails
	build_test("examples/tests.vr")
}

fn bench() {
	// benchmark main() of fib.vr 2000 times
	build_bench("examples/fib.vr", 2000)
}

fn deploy() {
	// arguments after the target arrive via args()
	let args = args()
	if len(args) == 0 {
		throw "deploy needs a flag: vr make deploy --prod"
	}
	println("deploying with args: " + join(args, " "))
	let out = build_exec("echo 'deploy step ok'")
	println(out)
}

fn clean() {
	// remove this module's artifacts (build_rm returns 1 if it removed something)
	let root = build_root()
	for f in ["lib.vobj", "lib.vbin", "use_lib.vobj", "use_lib.vbin", "hello.vbin"] {
		build_rm(build_join(root, f))
	}
	println("cleaned")
}