Using ghcid inside of emacs

gistfile1.txt

Pieces you need:

* emacs
* ghcid

ghcid needs to know the height of the terminal, we'll set it explicitly 

height = (window-height) - (scroll-margin) - 1

set this height as your term-buffer-maximum-size

    (setq term-buffer-maximum-size XXX)

Start an ansi-term session using bash

    SPC-'
    
run ghcid with this height, in your project root

    ghcid -c "cabal repl" -h HEIGHT

turn on compilation-minor-mode in the buffer

    

I didn't have to set the height. It sort of works. Error navigation works on some lines, but not on others. After using error navigation, when ghcid renders the new build output it doesn't scroll the terminal buffer. Is this also your experience, @nkpart, or am I missing something?

@nkpart I wrote the following helper based on your notes, seems to work okay so far:

(defun ghcid ()
  "Runs ghcid in a `term' buffer."
  (interactive)
  (require 'term)
  (let* ((cmd "ghcid")
         (h (- (window-height) scroll-margin 3))
         (term-buffer-maximum-size h)
         (args (format "-h %d" h))
         (switches (split-string-and-unquote args))
         (termbuf (apply 'make-term "ghcid" cmd nil switches)))
    (set-buffer termbuf)
    (term-mode)
    (term-char-mode)
    (compilation-minor-mode)
    (switch-to-buffer termbuf)))

I put project-specific configuration into .ghci and .ghcid files, so don't need to provide any further command-line arguments to ghcid.