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util.go

@@ -0,0 +1,26 @@
+package main
+
+import (
+	"fmt"
+	"os"
+)
+
+func checkErr(err error) {
+	if err != nil {
+		fmt.Println(err)
+		os.Exit(1)
+	}
+}
+
+func getInput(query string, allowBlank bool) (input string) {
+	for input == "" {
+		fmt.Print(query + ": ")
+		fmt.Scanf("%s\n", &input)
+
+		if allowBlank {
+			break
+		}
+	}
+
+	return
+}