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use strings.Join

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This commit is contained in:
Lynn Cyrin 2019-07-17 00:20:44 -07:00
parent cdc7af744e
commit 01d5cfab70
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GPG Key ID: EE9CCB427DFEC897
1 changed files with 2 additions and 10 deletions
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12
context.go
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@ -308,16 +308,8 @@ func checkRequiredFlags(flags []Flag, set *flag.FlagSet) error {
return fmt.Errorf("Required flag %q not set", missingFlags[0]) return fmt.Errorf("Required flag %q not set", missingFlags[0])
} }
if numberOfMissingFlags >= 2 { if numberOfMissingFlags >= 2 {
var missingFlagsOutput string joinedMissingFlags := strings.Join(missingFlags, ", ")
for idx, f := range missingFlags { return fmt.Errorf("Required flags %q not set", joinedMissingFlags)
// if not the last item, append with a ", "
if idx != numberOfMissingFlags-1 {
missingFlagsOutput = fmt.Sprintf("%s%s, ", missingFlagsOutput, f)
} else {
missingFlagsOutput = fmt.Sprintf("%s%s", missingFlagsOutput, f)
}
}
return fmt.Errorf("Required flags %q not set", missingFlagsOutput)
} }
return nil return nil