Make it possible to associate a project folder with any connection

[bbatsov]

Right now our primitive algorithm that matches local project directories to nREPL connections is pretty limited. It works only for connections that were started using cider-jack-in, because it maps a project dir to a connection at boot time. It also cannot handle very well situations when several projects are mapped to the same connection. All this makes it hard to work with several connections, as often you have to switch manually between them.

One way to improve this is to able to associate a project directory with any connection, using an interactive command, you can invoke at any time. That is simple solution that would solve the bigger part of this issue. In rare cases when some project is mapped to two connections we can opt to dispatch to the default connection (meaning business as usual). //cc @Malabarba

[Malabarba]

One way to improve this is to able to associate a project directory with any connection, using an interactive command, you can invoke at any time. That is simple solution that would solve the bigger part of this issue.

Yes, this seems most sane. Also, when you first cider-connect, associate whatever project you happen to be in at the time with that connection.

A more sophisticated option would be to let users name the connections somehow. This is the tricky part.
Once that is done, users could permanently specify which connection a project is associated to by setting a cider-connection-name variable in the .dir-locals file, and all we'd have to do is check the value of that variable when evaluating stuff.

[bbatsov]

A more sophisticated option would be to let users name the connections somehow. This is the tricky part.

There's already functionality to rename connections, btw. I think that setting this on boot won't be that hard either.

[bbatsov]

So, the bulk of the work regarding is done. The only outstanding tasks are:

• support for nested projects
• improving the handling of multiple matching projects - although I'm not sure what's the best course of action here

[bbatsov]

I think this works more or less well in it's present form, so I'll close this issue.