From 647f89f15ee39355241795a9b8bd116a82fbec91 Mon Sep 17 00:00:00 2001
From: Marco Cutecchia <marco.cutecchia@outlook.it>
Date: Sat, 30 Oct 2021 12:54:26 +0200
Subject: [PATCH] Utilities: Add 'quiet' mode to grep

---
 Userland/Utilities/grep.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Userland/Utilities/grep.cpp b/Userland/Utilities/grep.cpp
index 5e352053a59..6bb2f7abc9f 100644
--- a/Userland/Utilities/grep.cpp
+++ b/Userland/Utilities/grep.cpp
@@ -47,6 +47,7 @@ int main(int argc, char** argv)
     BinaryFileMode binary_mode { BinaryFileMode::Binary };
     bool case_insensitive = false;
     bool invert_match = false;
+    bool quiet_mode = false;
     bool colored_output = isatty(STDOUT_FILENO);
 
     Core::ArgsParser args_parser;
@@ -55,6 +56,7 @@ int main(int argc, char** argv)
     args_parser.add_option(pattern, "Pattern", "regexp", 'e', "Pattern");
     args_parser.add_option(case_insensitive, "Make matches case-insensitive", nullptr, 'i');
     args_parser.add_option(invert_match, "Select non-matching lines", "invert-match", 'v');
+    args_parser.add_option(quiet_mode, "Do not write anything to standard output", "quiet", 'q');
     args_parser.add_option(Core::ArgsParser::Option {
         .requires_argument = true,
         .help_string = "Action to take for binary files ([binary], text, skip)",
@@ -132,6 +134,9 @@ int main(int argc, char** argv)
 
             auto result = re.match(str, PosixFlags::Global);
             if (result.success ^ invert_match) {
+                if (quiet_mode)
+                    return true;
+
                 if (is_binary && binary_mode == BinaryFileMode::Binary) {
                     outln(colored_output ? "binary file \x1B[34m{}\x1B[0m matches" : "binary file {} matches", filename);
                 } else {