I’m a huge fan of Unison, the file synchroniser. I use it religiously; half of my system is based around it. It has a few quirks, however, and today I fell into one of them. I’m sure I’ve been here before, but I couldn’t remember the cause.
Essentially, it gives a cryptic message about the transferred file disappearing. The basic reason is this; Unison can’t cope with a path been included for synchronisiation twice; it twices to synch the file twice, and each time messes with the other.
Originally published on my old blog site.