Ignore pattern modification and override changes

[chucic (Václav Obrtlík)]

Sorry for jumping to discussion, but I feel your comparison is not relevant.

@pietrosperoni

folders that you told syncthing to not keep syncronised

Ignore list does not tell ST not to keep synchronised, but not to see them at all.

@pietrosperoni

For example in Dropbox it works like this.

I feel like Dropbox cannot be compared with ST in this because

1. Dropbox has a central repository which you cannot control and which have all files and all history of those files.
2. Dropbox has pretty low size limit (in free version at least) so you sometimes have to choose which subfolders of some big shared folder you want in your pc.

@pietrosperoni

but fear not, you can redownload them in any moment

Yes, but with ST other side might not have those files (ignored there too or you are master). I know that you proposed this to solve it:

@pietrosperoni

On Syncthing, it could delete something only if a copy of that file is on the other side

but I feel it is lot of code in the wrong direction. Main problem I see in this:

@pietrosperoni

The files listed in ignore would then be something akin of “I don’t want a copy of those in this computer”.

Ignore list is not selective sync, probably was never intended to be (I’m guessing from what I read in Selective Sync? - #7 by craibuc and Selective Sync · Issue #193 · syncthing/syncthing · GitHub). There are too many possible problems with it and too much work involved. I think result of discussion was that it would have to be completely rewritten (not based or derived from current implementation of ignore list) and that it is far future. And ST is still 0.X version.