REPL corrupted after cider-jack-in-clj

[manuel-uberti]

Expected behavior

C-c C-x j j should show the REPL buffer with the banner and the prompt.

Actual behavior

C-c C-x j j shows an empty REPL buffer:

Steps to reproduce the problem

• install latest CIDER from MELPA
• create a directory called test-project
• add a deps.edn file with this content:

{:deps {org.clojure/clojure {:mvn/version "1.10.0"}}
 :paths ["src"]}

• add a simple file test-project/src/core.clj:

(ns test-project.core)

• C-c C-x j j

Environment & Version information

CIDER version information

CIDER 0.22.0snapshot (package: 20190222.2021)

Environment information

GNU Emacs 27.0.50 (build 1, x86_64-debian-linux-gnu, GTK+ Version 3.22.30)
 of 2019-02-24

Repository revision: 975893b229072aa1b5565cc1a73987fa83ed5b21
Configured using:
--host=x86_64-debian-linux-gnu --with-modules

Emacs uptime: 23 minutes, 44 seconds
Colour theme: sanityinc-tomorrow-night
Operating system: Ubuntu 18.04.2 LTS
Window system: x11
Desktop environment: GNOME Shell 3.28.3

[manuel-uberti]

After further testing: using M-x cider-repl-clear-buffer brings the prompt back, so even though I'm not seeing the initial CIDER banner I can still work with the REPL.

[cichli]

Thanks for the detailed report! It looks like the contents of the buffer are scrolled out of view – your modeline says (10,6) – recentering with C-l should bring it into view. This is almost definitely caused by dc80d87.

[mbuczko]

as mentioned on a slack, replacing following lines in cider-repl.el (in cider-repl-init function):

(when-let ((window (get-buffer-window)))
      (set-window-point window (point-max)))

with:

(recenter (- -1 (max 0 scroll-margin)))

solves the problem for me. it acutally mimicks pressing C-l.

[manuel-uberti]

Thank you, @cichli.