#55 silence meaningless warning from the scripting-bridge framework

CHANGELOG.md

@@ -8,6 +8,7 @@ This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
 ### Changed
 - Hide power indicator from the status-bar if a battery could not be found [#60](https://github.com/koekeishiya/yabai/issues/60)
 - Disable focus follows mouse while the *mouse_modifier* key is held down [#62](https://github.com/koekeishiya/yabai/issues/62)
+- Silence meaningless warning reported by the scripting-bridge framework [#55](https://github.com/koekeishiya/yabai/issues/55)
 
 ## [1.0.1] - 2019-06-23
 ### Added

src/osax/sa.m

@@ -233,6 +233,16 @@ int scripting_addition_load(void)
 {
     if (!scripting_addition_is_installed()) return 1;
 
+    // temporarily redirect stderr to /dev/null to silence
+    // meaningless warning reported by the scripting-bridge
+    // framework, because Dock.app does not provide a .sdef
+
+    int stderr_fd = dup(2);
+    int null_fd = open("/dev/null", O_WRONLY);
+    fflush(stderr);
+    dup2(null_fd, 2);
+    close(null_fd);
+
     // @memory_leak
     // [SBApplication applicationWithBundleIdentifier] leaks memory and there is nothing we
     // can do about it.. So much for all the automatic memory management techniques in objc
@@ -245,5 +255,14 @@ int scripting_addition_load(void)
     [dock sendEvent:'YBSA' id:'load' parameters:0];
     [dock release];
 
+
+    //
+    // restore stderr back to normal
+    //
+
+    fflush(stderr);
+    dup2(stderr_fd, 2);
+    close(stderr_fd);
+
     return 0;
 }