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.dir-locals: Streamline Geiser configuration. 

Geiser now has support locating the project root and adding it to the load
path without external help; leverage it.

* .dir-locals.el [nil]: Remove obsolete Geiser configuration.  Set the
geiser-repl-per-project-p variable to t.
* doc/contributing.texi (The Perfect Setup): No longer mention explicitly
setting the geiser-guile-load-path; instead mention the effect of the
.dir-locals.el file.

Reported-by: Wolf <wolf@wolfsden.cz>
master
Maxim Cournoyer 2023-09-06 13:57:49 -04:00
parent 28b22c45ee
commit 65dcfb3f38
No known key found for this signature in database
GPG Key ID: 1260E46482E63562
2 changed files with 5 additions and 30 deletions
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22
.dir-locals.el
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@ -32,27 +32,7 @@
;; Geiser
;; This allows automatically setting the `geiser-guile-load-path'
;; variable when using various Guix checkouts (e.g., via git worktrees).
(eval . (let ((root-dir-unexpanded (locate-dominating-file
default-directory ".dir-locals.el")))
;; While Guix should in theory always have a .dir-locals.el
;; (we are reading this file, after all) there seems to be a
;; strange problem where this code "escapes" to some other buffers,
;; at least vc-mode. See:
;; https://lists.gnu.org/archive/html/guix-devel/2020-11/msg00296.html
;; Upstream report: <https://bugs.gnu.org/44698>
;; Hence the following "when", which might otherwise be unnecessary;
;; it prevents causing an error when root-dir-unexpanded is nil.
(when root-dir-unexpanded
(let* ((root-dir (file-local-name (expand-file-name root-dir-unexpanded)))
;; Workaround for bug https://issues.guix.gnu.org/43818.
(root-dir* (directory-file-name root-dir)))
(unless (boundp 'geiser-guile-load-path)
(defvar geiser-guile-load-path '()))
(make-local-variable 'geiser-guile-load-path)
(require 'cl-lib)
(cl-pushnew root-dir* geiser-guile-load-path
:test #'string-equal)))))))
(geiser-repl-per-project-p . t)))
(c-mode . ((c-file-style . "gnu")))
(scheme-mode

13
doc/contributing.texi
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@ -300,15 +300,10 @@ Geiser allows for interactive and incremental development from within
Emacs: code compilation and evaluation from within buffers, access to
on-line documentation (docstrings), context-sensitive completion,
@kbd{M-.} to jump to an object definition, a REPL to try out your code,
and more (@pxref{Introduction,,, geiser, Geiser User Manual}). For
convenient Guix development, make sure to augment Guile’s load path so
that it finds source files from your checkout:
@lisp
;; @r{Assuming the Guix checkout is in ~/src/guix.}
(with-eval-after-load 'geiser-guile
(add-to-list 'geiser-guile-load-path "~/src/guix"))
@end lisp
and more (@pxref{Introduction,,, geiser, Geiser User Manual}). If you
allow Emacs to load the @file{.dir-locals.el} file at the root of the
project checkout, it will cause Geiser to automatically add the local
Guix sources to the Guile load path.
To actually edit the code, Emacs already has a neat Scheme mode. But in
addition to that, you must not miss