From 4bc6c20091788ab2887906d49ebb4c6eb3b409c2 Mon Sep 17 00:00:00 2001
From: Aaron Malpas <40313754+malpas@users.noreply.github.com>
Date: Sat, 7 Sep 2019 11:03:16 +1000
Subject: [PATCH] cp: Use LibCore/CArgsParser for command-line arg parsing

---
 Userland/cp.cpp | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/Userland/cp.cpp b/Userland/cp.cpp
index 2cd48d2240..e7a8713c0a 100644
--- a/Userland/cp.cpp
+++ b/Userland/cp.cpp
@@ -1,6 +1,7 @@
 #include <AK/String.h>
 #include <AK/FileSystemPath.h>
 #include <AK/StringBuilder.h>
+#include <LibCore/CArgsParser.h>
 #include <assert.h>
 #include <fcntl.h>
 #include <stdio.h>
@@ -9,12 +10,18 @@
 
 int main(int argc, char** argv)
 {
-    if (argc != 3) {
-        printf("usage: cp <source> <destination>\n");
+    CArgsParser args_parser("cp");
+    args_parser.add_required_single_value("source");
+    args_parser.add_required_single_value("destination");
+
+    CArgsParserResult args = args_parser.parse(argc, argv);
+    Vector<String> values = args.get_single_values();
+    if (values.size() == 0) {
+        args_parser.print_usage();
         return 0;
     }
-    String src_path = argv[1];
-    String dst_path = argv[2];
+    String src_path = values[0];
+    String dst_path = values[1];
 
     int src_fd = open(src_path.characters(), O_RDONLY);
     if (src_fd < 0) {