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-rw-r--r--emacs/guix-emacs.el52
1 files changed, 34 insertions, 18 deletions
diff --git a/emacs/guix-emacs.el b/emacs/guix-emacs.el
index 0e3e8c211c..2f809ed16e 100644
--- a/emacs/guix-emacs.el
+++ b/emacs/guix-emacs.el
@@ -37,6 +37,11 @@ they are successfully installed."
 (defvar guix-emacs-autoloads nil
   "List of the last loaded Emacs autoloads.")
 
+(defvar guix-emacs-autoloads-regexp
+  (rx (group (* any) "-autoloads")
+      ".el" (zero-or-one "c") string-end)
+  "Regexp to match Emacs 'autoloads' file.")
+
 (defun guix-emacs-directory (&optional profile)
   "Return directory with Emacs packages installed in PROFILE.
 If PROFILE is nil, use `guix-user-profile'."
@@ -44,8 +49,15 @@ If PROFILE is nil, use `guix-user-profile'."
                     (or profile guix-user-profile)))
 
 (defun guix-emacs-find-autoloads-in-directory (directory)
-  "Return list of Emacs 'autoloads' files in DIRECTORY."
-  (directory-files directory 'full-name "-autoloads\\.el\\'" 'no-sort))
+  "Return a list of Emacs 'autoloads' files in DIRECTORY.
+The files in the list do not have extensions (.el, .elc)."
+  (cl-remove-duplicates
+   (delq nil
+        (mapcar (lambda (file)
+                  (when (string-match guix-emacs-autoloads-regexp file)
+                    (match-string 1 file)))
+                (directory-files directory 'full-name nil 'no-sort)))
+   :test #'string=))
 
 (defun guix-emacs-subdirs (directory)
   "Return list of DIRECTORY subdirectories."
@@ -74,29 +86,33 @@ Return nil if there are no emacs packages installed in PROFILE."
       nil)))
 
 ;;;###autoload
-(defun guix-emacs-load-autoloads (&optional all)
-  "Load autoloads for Emacs packages installed in a user profile.
-Add autoloads directories to `load-path'.
-If ALL is nil, activate only those packages that were installed
-after the last activation, otherwise activate all Emacs packages
-installed in `guix-user-profile'."
-  (interactive "P")
-  (let* ((autoloads (guix-emacs-find-autoloads))
-         (files (if all
-                    autoloads
-                  (cl-nset-difference autoloads guix-emacs-autoloads
-                                      :test #'string=))))
-    (dolist (file files)
-      (cl-pushnew (file-name-directory file) load-path
+(defun guix-emacs-load-autoloads (&optional profile)
+  "Load autoloads for Emacs packages installed in PROFILE.
+If PROFILE is nil, use `guix-user-profile'.
+Add autoloads directories to `load-path'."
+  (interactive (list (guix-profile-prompt)))
+  (let* ((autoloads     (guix-emacs-find-autoloads profile))
+         (new-autoloads (cl-nset-difference autoloads
+                                            guix-emacs-autoloads
+                                            :test #'string=)))
+    (dolist (file new-autoloads)
+      (cl-pushnew (directory-file-name (file-name-directory file))
+                  load-path
                   :test #'string=)
       (load file 'noerror))
-    (setq guix-emacs-autoloads autoloads)))
+    (setq guix-emacs-autoloads
+          (append new-autoloads guix-emacs-autoloads))))
 
 (defun guix-emacs-load-autoloads-maybe ()
   "Load autoloads for Emacs packages if needed.
 See `guix-emacs-activate-after-operation' for details."
   (and guix-emacs-activate-after-operation
-       (guix-emacs-load-autoloads)))
+       ;; FIXME Since a user can work with a non-current profile (using
+       ;; C-u before `guix-search-by-name' and other commands), emacs
+       ;; packages can be installed to another profile, and the
+       ;; following code will not work (i.e., the autoloads for this
+       ;; profile will not be loaded).
+       (guix-emacs-load-autoloads guix-current-profile)))
 
 (provide 'guix-emacs)