From 1681e88c2f95b96a48a0e6346c295996a63b751e Mon Sep 17 00:00:00 2001
From: Moritz Reinel <129004253+moritz-reinel@users.noreply.github.com>
Date: Mon, 30 Sep 2024 20:05:22 +0200
Subject: [PATCH] Prevent output of brightness cmds showing on screen (fixing
 #695)

---
 src/main.zig | 21 +++++++++++++++------
 1 file changed, 15 insertions(+), 6 deletions(-)

diff --git a/src/main.zig b/src/main.zig
index 00dde46..c3ac6a2 100644
--- a/src/main.zig
+++ b/src/main.zig
@@ -582,12 +582,21 @@ pub fn main() !void {
                         var sleep = std.process.Child.init(&[_][]const u8{ "/bin/sh", "-c", sleep_cmd }, allocator);
                         _ = sleep.spawnAndWait() catch .{};
                     }
-                } else if (pressed_key == brightness_down_key) {
-                    var brightness = std.process.Child.init(&[_][]const u8{ "/bin/sh", "-c", config.brightness_down_cmd }, allocator);
-                    _ = brightness.spawnAndWait() catch .{};
-                } else if (pressed_key == brightness_up_key) {
-                    var brightness = std.process.Child.init(&[_][]const u8{ "/bin/sh", "-c", config.brightness_up_cmd }, allocator);
-                    _ = brightness.spawnAndWait() catch .{};
+                } else if (pressed_key == brightness_down_key or pressed_key == brightness_up_key) {
+                    const cmd = if (pressed_key == brightness_down_key) config.brightness_down_cmd else config.brightness_up_cmd;
+
+                    var brightness = std.process.Child.init(&[_][]const u8{ "/bin/sh", "-c", cmd }, allocator);
+                    brightness.stdout_behavior = .Ignore;
+                    brightness.stderr_behavior = .Ignore;
+
+                    handle_brightness_cmd: {
+                        const process_result = brightness.spawnAndWait() catch {
+                            break :handle_brightness_cmd;
+                        };
+                        if (process_result.Exited != 0) {
+                            try info_line.addMessage(lang.err_brightness_change, config.error_bg, config.error_fg);
+                        }
+                    }
                 }
             },
             termbox.TB_KEY_CTRL_C => run = false,