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// This creates a simple hello world window
package main
import (
"log"
"fmt"
"os"
arg "github.com/alexflint/go-arg"
)
var args struct {
Foo string
Bar bool
User string `arg:"env:USER"`
Demo bool `help:"run a demo"`
}
var f *os.File
var err error
func init() {
arg.MustParse(&args)
fmt.Println(args.Foo, args.Bar, args.User)
f, err = os.OpenFile("/tmp/guilogfile", os.O_RDWR | os.O_CREATE | os.O_APPEND, 0666)
if err != nil {
log.Fatalf("error opening file: %v", err)
}
// hmm. is there a trick here or must this be in main()
// defer f.Close()
log.SetOutput(f)
log.Println("This is a test log entry")
}
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