print error messages from run using new printer

cmd/enbas/main.go

@@ -23,7 +23,6 @@ var (
 
 func main() {
 	if err := run(); err != nil {
-		fmt.Fprintf(os.Stderr, "ERROR: %v.\n", err)
 		os.Exit(1)
 	}
 }
@@ -181,13 +180,18 @@ func run() error {
 
 	exe, ok := executorMap[command]
 	if !ok {
+		err := executor.UnknownCommandError{Command: command}
+
+		printer.PrintFailure(err.Error() + ".")
 		flag.Usage()
 
-		return executor.UnknownCommandError{Command: command}
+		return err
 	}
 
 	if err := executor.Execute(exe, args); err != nil {
-		return fmt.Errorf("(%s) %w", command, err)
+		printer.PrintFailure("(" + command + ") " + err.Error() + ".")
+
+		return err
 	}
 
 	return nil

internal/printer/printer.go

@@ -23,6 +23,8 @@ type theme struct {
 	green       string
 	boldgreen   string
 	grey        string
+	red         string
+	boldred     string
 }
 
 type Printer struct {
@@ -51,6 +53,8 @@ func NewPrinter(
 		green:       "\033[32m",
 		boldgreen:   "\033[32;1m",
 		grey:        "\033[90m",
+		red:         "\033[31m",
+		boldred:     "\033[31;1m",
 	}
 
 	if maxTerminalWidth < minTerminalWidth {
@@ -73,7 +77,7 @@ func NewPrinter(
 }
 
 func (p Printer) PrintSuccess(text string) {
-	success := p.theme.green + p.successSymbol + p.theme.reset
+	success := p.theme.boldgreen + p.successSymbol + p.theme.reset
 	if p.noColor {
 		success = p.successSymbol
 	}
@@ -82,7 +86,12 @@ func (p Printer) PrintSuccess(text string) {
 }
 
 func (p Printer) PrintFailure(text string) {
-	printToStderr(p.failureSymbol + " " + text)
+	failure := p.theme.boldred + p.failureSymbol + p.theme.reset
+	if p.noColor {
+		failure = p.failureSymbol
+	}
+
+	printToStderr(failure + " " + text + "\n")
 }
 
 func (p Printer) PrintInfo(text string) {