From 362aa847cb6b724f51dc39c3060bc45efa8f79cd Mon Sep 17 00:00:00 2001
From: Thomas Voss <mail@thomasvoss.com>
Date: Fri, 4 Nov 2022 16:00:22 +0100
Subject: Require atleast one parameter to be provided

---
 src/main.rs | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'src/main.rs')

diff --git a/src/main.rs b/src/main.rs
index 1c0d487..f4d1d34 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -29,6 +29,10 @@ fn main() -> MainResult {
 
 fn work() -> Result<(), Error> {
 	let old_files = env::args().skip(1).collect::<Vec<String>>();
+	if old_files.is_empty() {
+		return Err(Error::NoArgs);
+	}
+
 	let dups = duplicate_elements(old_files.clone());
 	if !dups.is_empty() {
 		return Err(Error::DuplicateElems(dups));
-- 
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