package main

import (
	"os";
	"flag";
	"runtime";
	"exec";
)

//command line parameters
var build = flag.Bool("b", false, "Build")
var clean = flag.Bool("c", false, "Clean")
var run = flag.Bool("r", false, "Run")
var format = flag.Bool("f",false,"Format the source code with gofmt")
var outName *string = flag.String("o", "6.out", "The name of the output file")
var help = flag.Bool("h", false, "Display help")

func buildF(source string) {
	// check if file exists?
	
}

func formatF(source string)
{
	os.Stdout.WriteString("Formatting source code...\n");
	var command *exec.Cmd;
	var err os.Error;
	var params *[2]string = new([2]string);
	params[0] = "-w";
	params[1] = source;
	command, err = exec.Run("gofmt",
	params,
	nil,exec.DevNull,exec.PassThrough,exec.PassThrough);
	command.Wait(0);
	os.Stdout.WriteString("Error: " + err.String() + "\n");
	os.Stdout.WriteString("Formatted source code\n");
}

func printHelp(f *flag.Flag)	{ os.Stdout.WriteString("-" + f.Name + "\n\t" + f.Usage + "\n") }

func main() {
	var sourceName = "";
	flag.Parse();
	if flag.NArg() == 0 || *help == true {
		flag.VisitAll(printHelp);
		runtime.Goexit();
	} else
	{
		sourceName = flag.Arg(0);
		os.Stdout.WriteString(sourceName + "\n");
	}
	if *format
	{
		formatF(sourceName);
	}
}