Initial commit

utils.go

@@ -0,0 +1,19 @@
+package main
+
+import (
+	"errors"
+	"os"
+)
+
+// Returns true if file exists, false otherwise.
+// https://stackoverflow.com/questions/12518876/how-to-check-if-a-file-exists-in-go
+func Exists(filename string) bool {
+	_, err := os.Stat(filename)
+	if err == nil {
+		return true
+	}
+	if errors.Is(err, os.ErrNotExist) {
+		return false
+	}
+	return false
+}