Re: Suggest improve emacs setting in 'The Perfect Setup'

[jbranso@dismail.de]

January 1, 2023 2:54 PM, "Feng Shu" <tumashu@163.com> wrote:

> Joshua Branson <jbranso@dismail.de> writes:
> 
>> Feng Shu <tumashu@163.com> writes:
>> 
>>> Hello:
>>> 
>>> In 'The Perfect Setup', we suggest user to use the below emacs config:
>>> 
>>> ```
>>> ;; Assuming the Guix checkout is in ~/src/guix.
>>> (with-eval-after-load 'geiser-guile
>>> (add-to-list 'geiser-guile-load-path "~/src/guix"))
>>> ```
>>> 
>>> This config need user to deal with %load-path of guix, which seem to be
>>> a hard job for new guile user for many dirs of guix and other guix channels,
>>> why not suggest new user to use the below config:
>> 
>> How about you go ahead and make a patch on guix-patches@gnu.org, that
>> way this issue is not forgotten?
> 
> Maybe we can add an example emacs config for develop guix in etc directory.

That's a good idea!  I think there is/was a guix developer trying to write an
emacs configuration specifically to hack on guix...

> 
>>> ```
>>> (setq geiser-guile-binary (list "guix" "repl"))
>>> ```
>>> 
>>> or:
>>> 
>>> ```
>>> (setq geiser-guile-binary (list "guix" "repl" "-L" "/path/to/user-own-config-dir"))
>>> ```
>>> 
>>> when user just want to develop his own guix config, just run:
>>> 
>>> ```
>>> emacs
>>> ```
>>> 
>>> guix and other channels installed by 'guix pull' will be used properly.
>>> 
>>> when user want to develop in guix.git, he just run emacs like the below:
>>> 
>>> ```
>>> ./pre-inst-env emacs
>>> ```
>>> 
>>> The below is my guix emacs config, seem to work:
>>> 
>>> --------------------------------------------------------------------------------
>>> 
>>> (require 'geiser)
>>> (require 'geiser-guile)
>>> (require 'guix)
>>> (require 'magit)
>>> 
>>> ;; ** My own guix config.
>>> (defvar eh-geeguix-dir (expand-file-name "~/geeguix"))
>>> 
>>> ;; ** Let geiser-guile use 'guix repl'
>>> (setq geiser-guile-binary (list "guix" "repl" "-L" eh-geeguix-dir))
>>> 
>>> ;; ** guix-devel-mode
>>> (add-hook 'scheme-mode-hook #'guix-devel-mode)
>>> 
>>> ;; ** Get guix dir installed by 'guix pull'.
>>> (defun eh-guix-dir ()
>>> (file-name-as-directory
>>> (cl-find-if
>>> (lambda (dir)
>>> (file-exists-p (expand-file-name "guix.scm" dir)))
>>> (directory-files
>>> (expand-file-name "~/.cache/guix/checkouts/")
>>> t))))
>>> 
>>> ;; ** copyright-update
>>> (when (eh-guix-dir)
>>> (let* ((dir (eh-guix-dir))
>>> (file (expand-file-name "etc/copyright.el" dir)))
>>> (when (file-exists-p file)
>>> (load-file file)
>>> ;; (add-hook 'after-save-hook 'copyright-update)
>>> (setq copyright-names-regexp
>>> (format "%s <%s>" user-full-name user-mail-address)))))
>>> 
>>> ;; ** tempel
>>> (when (eh-guix-dir)
>>> (let* ((dir (eh-guix-dir))
>>> (path (expand-file-name "etc/snippets/tempel/*" dir)))
>>> (add-to-list 'tempel-path path)))
>> 
>> I would also add:
>> 
>> (add-hook! 'scheme-mode-hook #'display-fill-column-indicator-mode)
>> 
>> This creates a vertical line that reminds you that your code should fit
>> inside 80 columns.
>> 
>> Possible also mention how to set up page break lines:
>> 
>> https://github.com/purcell/page-break-lines
> 
> --