diff options
| -rw-r--r-- | .dir-locals.el | 32 |
1 files changed, 21 insertions, 11 deletions
diff --git a/.dir-locals.el b/.dir-locals.el index 8e5d3902e3..545c1c3e8b 100644 --- a/.dir-locals.el +++ b/.dir-locals.el @@ -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 |