From a84402d7963c08f72e571da7fd0bea2b57aca411 Mon Sep 17 00:00:00 2001
From: Ryan Liptak <squeek502@hotmail.com>
Date: Wed, 23 Jun 2021 17:22:34 -0700
Subject: [PATCH] Add NotDir as possible error for os.inotify_add_watch

Possible when "mask contains IN_ONLYDIR and pathname is not a directory."
---
 lib/std/os.zig | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/std/os.zig b/lib/std/os.zig
index 968d0a26f6..7e62b4de46 100644
--- a/lib/std/os.zig
+++ b/lib/std/os.zig
@@ -3667,6 +3667,7 @@ pub const INotifyAddWatchError = error{
     FileNotFound,
     SystemResources,
     UserResourceLimitReached,
+    NotDir,
 } || UnexpectedError;
 
 /// add a watch to an initialized inotify instance
@@ -3690,6 +3691,7 @@ pub fn inotify_add_watchZ(inotify_fd: i32, pathname: [*:0]const u8, mask: u32) I
         ENOENT => return error.FileNotFound,
         ENOMEM => return error.SystemResources,
         ENOSPC => return error.UserResourceLimitReached,
+        ENOTDIR => return error.NotDir,
         else => |err| return unexpectedErrno(err),
     }
 }