package cmdr

import (
	"github.com/gookit/color"
	"strings"
)

// PrintCmdline on before exec
func PrintCmdline(c *Cmd) {
	if c.DryRun {
		color.Yellowln("DRY-RUN>", c.Cmdline())
	} else {
		color.Yellowln(">", c.Cmdline())
	}
}

// OutputLines split output to lines
func OutputLines(output string) []string {
	output = strings.TrimSuffix(output, "\n")
	if output == "" {
		return nil
	}
	return strings.Split(output, "\n")
}

// FirstLine from command output
func FirstLine(output string) string {
	if i := strings.Index(output, "\n"); i >= 0 {
		return output[0:i]
	}
	return output
}