watch: remove Filesys::Notify::Simple dependency

Since we already use inotify and EVFILT_VNODE (kqueue)
in -imapd, we might as well use them directly in -watch,
too.

This will allow public-inbox-watch to use PublicInbox::DS
for timers to watch newsgroups/mailboxes and have saner
signal handling in future commits.

1 files changed, 2 insertions, 1 deletions

diff --git a/script/public-inbox-watch b/script/public-inbox-watch
index 645abeda..2057066a 100755
--- a/script/public-inbox-watch
+++ b/script/public-inbox-watch
@@ -21,6 +21,7 @@ if ($watch_md) {
                 $watch_md->quit if $watch_md;
                 $watch_md = undef;
         };
-        alarm(1);
+        # --no-scan is only intended for testing atm, undocumented.
+        alarm(1) unless (grep(/\A--no-scan\z/, @ARGV));
         $watch_md->watch while ($watch_md);
 }