Option to get classpath offline

[kul]

In case a maven repository is down it is impossible to open buffer without killing. It could be helpful to provide an option to user to set offline mode and use lein -o classpath in the plugin, which is significantly faster in general too.

[kul]

Imho the default should be lein -o as i see more value of the plugin when a repl is already running then one time evaluation.

2 cents.

[tpope]

As of the most recent commit, classpath.vim now remembers if it fails to retrieve the path and doesn't try again till project.clj changes. The way I see it, combining that with -o is basically a non-starter, because the first attempt is very likely to fail if you're not diligent about running a lein command immediately after editing project.clj.

[tpope]

I'd accept a patch that passes -o to lein and maven if g:classpath_offline is set. I'd be more enthusiastic about a solution that defaults to -o but copes with the above problem more gracefully, such as by retrying without -o if the problem is indeed offline related.