open-nomad/command/helpers.go

33 lines
805 B
Go

package command
import (
"github.com/ryanuber/columnize"
)
// formatKV takes a set of strings and formats them into properly
// aligned k = v pairs using the columnize library.
func formatKV(in []string) string {
columnConf := columnize.DefaultConfig()
columnConf.Empty = "<none>"
columnConf.Glue = " = "
return columnize.Format(in, columnConf)
}
// formatList takes a set of strings and formats them into properly
// aligned output, replacing any blank fields with a placeholder
// for awk-ability.
func formatList(in []string) string {
columnConf := columnize.DefaultConfig()
columnConf.Empty = "<none>"
return columnize.Format(in, columnConf)
}
// Limits the length of the string.
func limit(s string, length int) string {
if len(s) < length {
return s[:len(s)]
}
return s[:length]
}