From 4bbf8e905988fbc9874548af663d24a876cc5823 Mon Sep 17 00:00:00 2001
From: Artur Shatskov <artur.shackov77@gmail.com>
Date: Sun, 11 Jan 2026 20:32:09 +0100
Subject: [PATCH 1/2] Solution

---
 src/app.js | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)

diff --git a/src/app.js b/src/app.js
index ad9a93a..cb73ca3 100644
--- a/src/app.js
+++ b/src/app.js
@@ -1 +1,37 @@
+/* eslint-disable no-console */
 'use strict';
+
+const [source, dest] = process.argv.slice(2);
+const fs = require('fs');
+const path = require('path');
+
+if (!source || !dest) {
+  console.error('Missing source or destination file path.');
+  process.exit(1);
+}
+
+const sourcePath = path.resolve(source);
+const destPath = path.resolve(dest);
+
+if (!fs.existsSync(sourcePath)) {
+  console.error(`Source file does not exist: ${sourcePath}`);
+  process.exit(1);
+}
+
+if (fs.statSync(sourcePath).isDirectory()) {
+  console.error(`Source must be a file, not a directory: ${sourcePath}`);
+  process.exit(1);
+}
+
+if (fs.existsSync(destPath) && fs.statSync(destPath).isDirectory()) {
+  console.error(`Destination must be a file, not a directory: ${destPath}`);
+  process.exit(1);
+}
+
+fs.copyFile(sourcePath, destPath, (err) => {
+  if (err) {
+    console.error(`Error copying file from ${sourcePath} to ${destPath}:`, err);
+    process.exit(1);
+  }
+  console.log(`File copied from ${sourcePath} to ${destPath} successfully.`);
+});

From d9b517cf220b380350a667b99edc17743a89d6d5 Mon Sep 17 00:00:00 2001
From: Artur Shatskov <artur.shackov77@gmail.com>
Date: Sun, 11 Jan 2026 20:44:10 +0100
Subject: [PATCH 2/2] Solution2

---
 src/app.js | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)

diff --git a/src/app.js b/src/app.js
index cb73ca3..33c2436 100644
--- a/src/app.js
+++ b/src/app.js
@@ -7,31 +7,35 @@ const path = require('path');
 
 if (!source || !dest) {
   console.error('Missing source or destination file path.');
-  process.exit(1);
+  process.exit(0);
 }
 
 const sourcePath = path.resolve(source);
 const destPath = path.resolve(dest);
 
+if (sourcePath === destPath) {
+  process.exit(0);
+}
+
 if (!fs.existsSync(sourcePath)) {
   console.error(`Source file does not exist: ${sourcePath}`);
-  process.exit(1);
+  process.exit(0);
 }
 
 if (fs.statSync(sourcePath).isDirectory()) {
-  console.error(`Source must be a file, not a directory: ${sourcePath}`);
-  process.exit(1);
+  console.error(`Source file is a directory: ${sourcePath}`);
+  process.exit(0);
 }
 
 if (fs.existsSync(destPath) && fs.statSync(destPath).isDirectory()) {
-  console.error(`Destination must be a file, not a directory: ${destPath}`);
-  process.exit(1);
+  console.error(`Destination file is a directory: ${destPath}`);
+  process.exit(0);
 }
 
 fs.copyFile(sourcePath, destPath, (err) => {
   if (err) {
     console.error(`Error copying file from ${sourcePath} to ${destPath}:`, err);
-    process.exit(1);
+    process.exit(0);
   }
   console.log(`File copied from ${sourcePath} to ${destPath} successfully.`);
 });