Improve performance of chown by doing a quick smoke test

init/90_uid_gid_fix.sh

@@ -1,11 +1,13 @@
 #!/bin/bash
 
-if [ "$(id -u abc)" != "$PUID" ]; then usermod -u "$PUID" abc ; fi
-if [ "$(id -g abc)" != "$PGID" ]; then groupmod -o -g  "$PGID" abc ; fi
-find /config -not \( -user abc -a -group abc \) -exec chown abc:abc {} +
-# May not be a good idea to mess with permissions set by Plex
-#find /config -type f -a -perm -0660 -exec chmod ug+rw {} +
-#find /config -type d -a -perm -0770 -exec chmod ug+rwx {} +
+if [ -n "$PUID" -a "$(id -u abc)" != "$PUID" ]; then usermod -u "$PUID" abc ; fi
+if [ -n "$PGID" -a "$(id -g abc)" != "$PGID" ]; then groupmod -o -g  "$PGID" abc ; fi
+
+# There will be a lot of files in the config and searching through all of them will take a long time.
+# Only Plex should modify these, so do a quick test to see if we need to search deeper.
+if [ -n "$( find /config -maxdepth 2 -not \( -user abc -a -group abc \) )" ]; then
+	find /config -not \( -user abc -a -group abc \) -exec chown abc:abc {} +
+fi
 
 echo "
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