1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
|
package cli_helpers
import (
"strings"
"github.com/sirupsen/logrus"
)
// WarnOnBool logs warning if args contains true or false
// github.com/urfave/cli breaks badly if boolean are set using --flag true instead of --flag=true or just --flag
// this is a simple check that warn the user about this if detects "true" or "false" alone in the arguments
func WarnOnBool(args []string) {
// we skip the first element because it contains the program name
for idx, a := range args[1:] {
arg := strings.ToLower(a)
if arg == "true" || arg == "false" {
supposedFlag := "--key"
if idx > 0 {
supposedFlag = args[idx]
}
logrus.Warningf("boolean parameters must be passed in the command line with %s=%s", supposedFlag, arg)
logrus.Warningln("parameters after this may be ignored")
break
}
}
}
|
