I am heavily dependent on the most excellent Thor based CLI tool shopify_theme. It was recently improved by Shopify with a switch to Listen from FSSM and seems to work fine.
I was using it yesterday and experienced some glitches though. It seems the theme watch command loses synchronization with changes to files. I am not sure what triggers the problem. One thing I do often is use Finder to drag drop new files into assets, and I expect to see the watch command upload those new assets. Instead, nothing appears on stdout. Editing files after also fail to trigger uploads.
I cannot say for certain that the Listen object is the culprit, but it is troubling in that now I have to watch the watcher terminal window to see if it is actually watching. Anyone else use this gem and experience the glitch???