57 lines
2.6 KiB
EmacsLisp
57 lines
2.6 KiB
EmacsLisp
;; -*- lexical-binding: t; -*-
|
|
(defun nix--profile-paths ()
|
|
"Return a list of all paths in NIX_PROFILES.
|
|
The list is ordered from more-specific (the user profile) to the
|
|
least specific (the system profile)"
|
|
(reverse (split-string (or (getenv "NIX_PROFILES") ""))))
|
|
|
|
;;; Extend `load-path' to search for elisp files in subdirectories of
|
|
;;; all folders in `NIX_PROFILES'. Also search for one level of
|
|
;;; subdirectories in these directories to handle multi-file libraries
|
|
;;; like `mu4e'.'
|
|
(require 'seq)
|
|
(let* ((subdirectory-sites (lambda (site-lisp)
|
|
(when (file-exists-p site-lisp)
|
|
(seq-filter (lambda (f) (file-directory-p (file-truename f)))
|
|
;; Returns all files in `site-lisp', excluding `.' and `..'
|
|
(directory-files site-lisp 'full "^\\([^.]\\|\\.[^.]\\|\\.\\..\\)")))))
|
|
(paths (apply #'append
|
|
(mapcar (lambda (profile-dir)
|
|
(let ((site-lisp (concat profile-dir "/share/emacs/site-lisp/")))
|
|
(cons site-lisp (funcall subdirectory-sites site-lisp))))
|
|
(nix--profile-paths)))))
|
|
(setq load-path (append paths load-path)))
|
|
|
|
|
|
;;; Make `woman' find the man pages
|
|
(defvar woman-manpath)
|
|
(eval-after-load 'woman
|
|
'(setq woman-manpath
|
|
(append (mapcar (lambda (x) (concat x "/share/man/"))
|
|
(nix--profile-paths))
|
|
woman-manpath)))
|
|
|
|
;;; Make tramp work for remote NixOS machines
|
|
(defvar tramp-remote-path)
|
|
(eval-after-load 'tramp-sh
|
|
;; TODO: We should also add the other `NIX_PROFILES' to this path.
|
|
;; However, these are user-specific, so we would need to discover
|
|
;; them dynamically after connecting via `tramp'
|
|
'(add-to-list 'tramp-remote-path "/run/current-system/sw/bin"))
|
|
|
|
;;; C source directory
|
|
;;;
|
|
;;; Computes the location of the C source directory from the path of
|
|
;;; the current file:
|
|
;;; from: /nix/store/<hash>-emacs-<version>/share/emacs/site-lisp/site-start.el
|
|
;;; to: /nix/store/<hash>-emacs-<version>/share/emacs/<version>/src/
|
|
(defvar find-function-C-source-directory)
|
|
(let ((emacs
|
|
(file-name-directory ; .../emacs/
|
|
(directory-file-name ; .../emacs/site-lisp
|
|
(file-name-directory load-file-name)))) ; .../emacs/site-lisp/
|
|
(version
|
|
(file-name-as-directory
|
|
emacs-version))
|
|
(src (file-name-as-directory "src")))
|
|
(setq find-function-C-source-directory (concat emacs version src)))
|