| package examples | |
| import ( | |
| "os" | |
| "strings" | |
| "github.com/fatih/color" | |
| ) | |
| func CheckArgs(arg ...string) { | |
| if len(os.Args) < len(arg)+1 { | |
| Warning("Usage: %s %s", os.Args[0], strings.Join(arg, " ")) | |
| os.Exit(1) | |
| } | |
| } | |
| func CheckIfError(err error) { | |
| if err == nil { | |
| return | |
| } | |
| color.Red("error: %s", err) | |
| os.Exit(1) | |
| } | |
| func Info(format string, args ...interface{}) { | |
| color.Blue(format, args...) | |
| } | |
| func Warning(format string, args ...interface{}) { | |
| color.Cyan(format, args...) | |
| } |