50 lines
820 B
Go
50 lines
820 B
Go
package main
|
|
|
|
import (
|
|
"bufio"
|
|
"fmt"
|
|
"os"
|
|
"strings"
|
|
)
|
|
|
|
func PromptWDefault(label, def string) string {
|
|
ret := Prompt(label, false)
|
|
if ret == "" {
|
|
return def
|
|
}
|
|
return ret
|
|
}
|
|
|
|
func Prompt(label string, required bool) string {
|
|
reader := bufio.NewReader(os.Stdin)
|
|
var res string
|
|
fmt.Println(label + ": ")
|
|
res, _ = reader.ReadString('\n')
|
|
res = strings.TrimSpace(res)
|
|
if res == "" && required {
|
|
fmt.Println("Non-empty response is required")
|
|
return Prompt(label, required)
|
|
}
|
|
return res
|
|
}
|
|
|
|
func FileExists(path string) bool {
|
|
info, err := os.Stat(path)
|
|
if os.IsNotExist(err) {
|
|
return false
|
|
}
|
|
return !info.IsDir()
|
|
}
|
|
|
|
func DirExists(path string) bool {
|
|
info, err := os.Stat(path)
|
|
if os.IsNotExist(err) {
|
|
return false
|
|
}
|
|
return info.IsDir()
|
|
}
|
|
|
|
func PrintErr(o string) {
|
|
fmt.Fprint(os.Stderr, o)
|
|
}
|