tree adbfcd08479e392643b2b7cf7b03034f1cd16d26
parent 9d90c1c4866f2426a4124c01eb25cd8dd1d407e3
author Keegan Carruthers-Smith <keegan.csmith@gmail.com> 1591091456 +0200
committer Keegan Carruthers-Smith <keegan.csmith@gmail.com> 1591091456 +0200

shards: consolidate events before calling scan

We call scan for each fsnotify event. However, multiple events may
happen during a single call to scan, leading to multiple needless calls
to scan. Instead we can consolidate the events from fsnotify so we only
call scan if it isn't running, or only one more time if it is running.

Change-Id: I7b8c3891a202c28357beb8e4bcf74a3c33b3faf0