middleware doesn't load with trampoline?

[icambron]

I realize this may not be an issue in Piggieback itself, but I figured this would still be the right place to bring it up. When I do lein repl, I can bring up my browser repl no problem (I'm using Weasel, not Piggieback directly, but AFAIK that doesn't matter). But when I do lein trampoline repl and do the same thing, I get:

IllegalStateException Can't change/establish root binding of: *cljs-repl-options* with set  clojure.lang.Var.set (Var.java:221)

Reading through the issues here, I understand that error means the nrepl-middleware hasn't loaded? Is there something about the way trampoline works that creates a problem there?

[cemerick]

Yeah, trampoline has consistently posed a challenge for various plugins (emezeske/lein-cljsbuild#204 is another issue I'm aware of).

I can reproduce the problem you describe, and you're correct about the proximate cause (the middleware hasn't been loaded). Happy to take a PR, though from what I understand of trampoline, its environment is subtly (but sufficiently) different from "normal" task execution that getting piggieback to work with it properly may not be feasible/worth the effort?

[icambron]

Thanks for looking into it. Since I know next to nothing about the inner workings of lein, I'll defer to your judgment on it not being worth it. Would you take a PR that provided a better error message about the possible causes of that error?

[cichli]

There's a similar issue at greglook/whidbey#6 where @trptcolin speculates that trampoline repl fails to load middleware at all. Perhaps it's worth logging this on the leiningen issue tracker?

[cemerick]

@cichli Sure, sounds reasonable.

@icambron Yeah, mentioning something about not using trampoline there would be fine.