From 3203e6586a96fee1cc1eed671618798b9607bec7 Mon Sep 17 00:00:00 2001
From: Bastian Dehn <hhaalo@arcor.de>
Date: Thu, 3 Feb 2022 17:36:19 +0100
Subject: [PATCH] add: check input file exists

---
 src/de/hhaalo/discspan.java | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/de/hhaalo/discspan.java b/src/de/hhaalo/discspan.java
index 8ba0895..da1b499 100644
--- a/src/de/hhaalo/discspan.java
+++ b/src/de/hhaalo/discspan.java
@@ -1,5 +1,7 @@
 package de.hhaalo.discspan;
 
+import java.io.File;
+
 public class discspan
 {
 	public static void main(String[] args)
@@ -12,5 +14,11 @@ public class discspan
 			System.err.println("ERROR: missing arguments");
 			System.exit(1);
 		}
+
+		File inputFile = new File(param.getInput());
+		if (!inputFile.exists()) {
+			System.err.println("ERROR: " + param.getInput()
+					+ " file does not exists");
+		}
 	}
 }
-- 
2.39.5