// +build ignore

package main

import (
	"flag"
	"os"
	"os/exec"
	"strings"
)

var reproducible = flag.Bool("r", false, "If set, the build will remove local directories from the debug infos.")

func main() {
	flag.Parse()

	env := os.Environ()
	wd, err := os.Getwd()
	if err != nil {
		panic(err)
	}

	env = append(env, "GOPATH="+wd, "CGO_ENABLED=0")

	args := []string{"build", "-ldflags=-s -w"}

	if *reproducible {
		args = append(args,
			"-asmflags=all=-trimpath="+wd,
			"-gcflags=all=-trimpath="+wd,
			"-a",
		)
	}

	if len(flag.Args()) == 1 {
		target := flag.Arg(0)
		targetParts := strings.Split(target, "/")
		if len(targetParts) != 2 {
			println("Invalid target specification. Example: windows/386")
			os.Exit(1)
		}
		env = append(env,
			"GOOS="+targetParts[0],
			"GOARCH"+targetParts[1],
		)
		ext := ""
		if targetParts[0] == "windows" {
			ext = ".exe"
		}
		args = append(args, "-o", "calanonsync-"+targetParts[0]+"-"+targetParts[1]+ext)
	}

	args = append(args, "calanonsync")

	cmd := exec.Command("go", args...)
	cmd.Stdout = os.Stdout
	cmd.Stderr = os.Stderr
	cmd.Env = env

	err = cmd.Run()
	if err != nil {
		panic(err)
	}
}