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gnu: emacs: Add TREE_SITTER_GRAMMAR_PATH support. 

gnu/packages/emacs.scm (emacs)[native-search-paths]: Add a search-path for
tree-sitter grammars.
gnu/packages/aux-files/emacs/guix-emacs.el: Add directories from
TREE_SITTER_GRAMMAR_PATH to treesit-extra-load-path.
master
Andrew Tropin 2023-02-10 12:32:12 +04:00
parent 3ab8559436
commit c77a3d4554
No known key found for this signature in database
GPG Key ID: 2208D20958C1DEB0
2 changed files with 16 additions and 1 deletions
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7
gnu/packages/aux-files/emacs/guix-emacs.el
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@ -76,6 +76,13 @@ The files in the list do not have extensions (.el, .elc)."
(when (file-directory-p pkg-dir)
(package-load-descriptor pkg-dir)))))))))))
;; If emacs built with tree-sitter, read the value of the environment variable
;; to make tree-sitter grammars available in emacs out-of-the-box.
(with-eval-after-load 'treesit
(when-let ((grammar-path (getenv "TREE_SITTER_GRAMMAR_PATH")))
(mapcar (lambda (x) (add-to-list 'treesit-extra-load-path x))
(split-string grammar-path ":"))))
(provide 'guix-emacs)
;;; guix-emacs.el ends here

10
gnu/packages/emacs.scm
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@ -367,7 +367,15 @@
(files '("lib/emacs/native-site-lisp")))
(search-path-specification
(variable "INFOPATH")
(files '("share/info")))))
(files '("share/info")))
;; tree-sitter support is not yet available in emacs 28, but this
;; search path won't harm and also will be beneficial for
;; emacs-next and other emacs-* packages, which have tree-sitter
;; support enabled. Please, remove this comment, when emacs
;; package is updated to 29.
(search-path-specification
(variable "TREE_SITTER_GRAMMAR_PATH")
(files '("lib/tree-sitter")))))
(home-page "https://www.gnu.org/software/emacs/")
(synopsis "The extensible, customizable, self-documenting text editor")