Return errors, rather than printing them; move PrintError() to front package

front/general.go

@@ -0,0 +1,21 @@
+package front
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/rwinkhart/go-boilerplate/back"
+)
+
+// PrintError prints an error message in the MUTN format and exits with the specified exit code.
+// Requires: message (the error message to print),
+// exitCode (the exit code to use),
+// forceHardExit (if true, exit immediately; if false, allow soft exit for interactive clients).
+func PrintError(message string, exitCode int, forceHardExit bool) {
+	fmt.Println(back.AnsiError + message + back.AnsiReset)
+	if forceHardExit {
+		os.Exit(exitCode)
+	} else {
+		back.Exit(exitCode)
+	}
+}