cider-jack-in doesn't work well with boot

[lispyclouds]

Expected behavior

After cider-jack-in, I should be able to use CIDER and navigate normally.

Actual behavior

cider-jack-in succeeds but causes emacs to freeze for a couple of seconds and the following error is seen:

Other issues:

• jump-to-definition also doesn't work after this.
• The cider repl is in an uninitialized state
  

Steps to reproduce the problem

• Use any clojure project using boot
• Perform cider-jack-in
• Observe emacs freeze and the error appear

Environment & Version information

CIDER version information

CIDER master
Clojure 1.10
Java 12

Lein/Boot version

Boot 2.8.3

Emacs version

Emacs 26.2 with Spacemacs develop

Operating system

MacOS 10.14.5

[lispyclouds]

Possibly related to #2643

[bbatsov]

@arichiardi @alexander-yakushev Can you confirm the problem?

[alexander-yakushev]

It works fine for me on Java 8 and Boot 2.8.2.

Could you please downgrade to Boot 2.8.2 for a test? That newer build of Boot doesn't seem to work correctly in many regards.

[bbatsov]

It doesn't? I thought there were virtually no internal changes there.

[lispyclouds]

2.8.2 on Java 12 has the same issues as well

[lispyclouds]

Tried running boot 2.8.2 on java 1.8.0_212 with no luck as well.

[arichiardi]

I tried only 2.8.3 and it seemed to be working

[arichiardi]

I noticed that the nRepl launcher does some ask of dancing so that might be the difference

[alexander-yakushev]

Is there anything in your profile.boot that can influence this?

[lispyclouds]

@arichiardi you're right it does seem to work on a sample project i tried: https://github.com/oakes/full-stack-boot-example but i can see the issue on mine for some reason: https://github.com/bob-cd/bob

[lispyclouds]

@alexander-yakushev I don't really have a profile.boot. just the boot.properties file

[arichiardi]

When I get to the office I am going to try your project, thanks and sorry. I also had one other version using nrepl directly so @bbatsov might want to revert to that instead.

[lispyclouds]

Thanks a lot!

[alexander-yakushev]

@lispyclouds Actually, if you are trying to jack in with cider-nrepl 0.22.0-beta2, it is broken for me as well.

[bbatsov]

When I get to the office I am going to try your project, thanks and sorry. I also had one other version using nrepl directly so @bbatsov might want to revert to that instead.

Let's figure out what's wrong first. We've used Boot's default task for a very long time, so I'm really puzzled by this development.

I noticed that the nRepl launcher does some ask of dancing so that might be the difference

I guess you mean ack, not ask, right? That's something that Lein does as well, and it's pretty simple. Not sure how many clients (if any) rely on ack, but I doubt it's causing the problem, as it has always been there.

[lispyclouds]

@alexander-yakushev yes that's what i was trying with

[arichiardi]

I guess you mean ack, not ask, right?

Yes sorry was on the phone

[arichiardi]

Can confirm the stuck emacs and the timeout in bob.:

error in process filter: nrepl-send-sync-request: Sync nREPL request timed out (op describe)
error in process filter: Sync nREPL request timed out (op describe)

[bbatsov]

Any idea what's the real reason? That error message simply means that nREPL didn't boot up properly. What's happens when you run the boot shell command outside of Emacs?

[arichiardi]

Will try that as well

[bbatsov]

@arichiardi Any progress with the investigation?

[arichiardi]

Didn't have time, will try this week hopefully

[lispyclouds]

Hello, is there any updates on this? I poked around a bit and it really seems only my source code produces this issue. If there is some way I can help I'm happy to do it! 😄 I have a feeling this could be some issue in my build.boot?

[bbatsov]

@lispyclouds I'm still waiting for someone to report that's the actual problem (which should be reproducible by running the command CIDER generated in some terminal).

[arichiardi]

Sorry been travelling and kind of on holiday at the moment, not sure I can carve some time for this but will try to

[lispyclouds]

This has been solved now. As I suspected, the issue was in my build.boot evaling the main ns which took a while for me as I had a mount state there. That caused CIDER to timeout while waiting for nREPL to come up. Setting something like (setq nrepl-sync-request-timeout 100) fixed this! Found the fix when hacking with @bbatsov himself and can't be more thankful to him and the entire CIDER team! 🙏 Sorry for the trouble.