me
/
guix
Archived
1
0
Fork 0
Code

.dir-locals.el: Prevent errors if .dir-locals.el isn't found. 

While this repo should presumably always have a .dir-locals.el
by the nature of this file itself, it seems that this behavior "leaks".
See added comment for more details on the fix to this strange bug,
which is likely an upstream emacs or vc-mode issue.

Thanks to Miguel Ángel Arruga Vivas and Maxim Cournoyer for helping
investigate this problem.

* .dir-locals.el: Don't error out if .dir-locals.el isn't found.
master
Christopher Lemmer Webber 2020-11-16 13:04:38 -05:00
parent f609369840
commit 1d6e7732b1
No known key found for this signature in database
GPG Key ID: 4BC025925FF8F4D3
1 changed files with 21 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

32
.dir-locals.el
View File

@ -17,17 +17,27 @@
;; 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 (expand-file-name
(locate-dominating-file
default-directory ".dir-locals.el")))
;; 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)))))
(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
;; (TODO: add/replace with upstream emacs bug link when reported)
;; 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 (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")))
(scheme-mode