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main.go
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main.go
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package main
import (
"fmt"
"os"
"strings"
)
func main() {
c := MenuConf{}
menu := c.SetupMenu()
if err := menu.Parse(os.Args[1:]); err != nil {
fmt.Printf("Error parsing params %s, error: %v", os.Args[1:], err)
return
}
// we use arguments to switch between commands
// flags are also an argument
if len(os.Args) > 1 {
// we don't care about case
switch strings.ToLower(os.Args[1]) {
case "version":
c.Version()
case "greet":
f := c.GetSubMenu()
if len(os.Args) < 3 {
f.Usage()
return
}
if len(os.Args) > 3 {
if err := f.Parse(os.Args[3:]); err != nil {
fmt.Fprintf(os.Stderr, "Error parsing params %s, error: %v", os.Args[3:], err)
return
}
}
c.Greet(os.Args[2])
default:
fmt.Println("Invalid command")
menu.Usage()
return
}
} else {
menu.Usage()
return
}
}