Add warning log

cli/packages/util/log.go

@@ -0,0 +1,42 @@
+package util
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/fatih/color"
+)
+
+func HandleError(err error, messages ...string) {
+	PrintErrorAndExit(1, err, messages...)
+}
+
+func PrintErrorAndExit(exitCode int, err error, messages ...string) {
+	printError(err)
+
+	if len(messages) > 0 {
+		for _, message := range messages {
+			fmt.Println(message)
+		}
+	}
+
+	os.Exit(exitCode)
+}
+
+func PrintWarning(message string) {
+	color.Yellow("Warning: %v", message)
+}
+
+func PrintMessageAndExit(messages ...string) {
+	if len(messages) > 0 {
+		for _, message := range messages {
+			fmt.Println(message)
+		}
+	}
+
+	os.Exit(1)
+}
+
+func printError(e error) {
+	color.Red("Hmm, we ran into an error: %v", e)
+}