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.dir-locals: Streamline Geiser configuration.

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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>
This commit is contained in:
Maxim Cournoyer 2023-09-06 13:57:49 -04:00
parent 28b22c45ee
commit 65dcfb3f38
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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 ;; Geiser
;; This allows automatically setting the `geiser-guile-load-path' ;; This allows automatically setting the `geiser-guile-load-path'
;; variable when using various Guix checkouts (e.g., via git worktrees). ;; variable when using various Guix checkouts (e.g., via git worktrees).
(eval . (let ((root-dir-unexpanded (locate-dominating-file (geiser-repl-per-project-p . t)))
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)))))))
(c-mode . ((c-file-style . "gnu"))) (c-mode . ((c-file-style . "gnu")))
(scheme-mode (scheme-mode

13
doc/contributing.texi
View file

@ -300,15 +300,10 @@ Geiser allows for interactive and incremental development from within
Emacs: code compilation and evaluation from within buffers, access to Emacs: code compilation and evaluation from within buffers, access to
on-line documentation (docstrings), context-sensitive completion, on-line documentation (docstrings), context-sensitive completion,
@kbd{M-.} to jump to an object definition, a REPL to try out your code, @kbd{M-.} to jump to an object definition, a REPL to try out your code,
and more (@pxref{Introduction,,, geiser, Geiser User Manual}). For and more (@pxref{Introduction,,, geiser, Geiser User Manual}). If you
convenient Guix development, make sure to augment Guile’s load path so allow Emacs to load the @file{.dir-locals.el} file at the root of the
that it finds source files from your checkout: project checkout, it will cause Geiser to automatically add the local
Guix sources to the Guile load path.
@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
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