diff options
Diffstat (limited to 'lisp/subr.el')
| -rw-r--r-- | lisp/subr.el | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/lisp/subr.el b/lisp/subr.el index 40311c4e1f4..5a1f4d42ee2 100644 --- a/lisp/subr.el +++ b/lisp/subr.el @@ -2156,7 +2156,24 @@ On other systems, this variable is normally always nil.") "~/.emacs.d/") "Directory beneath which additional per-user Emacs-specific files are placed. Various programs in Emacs store information in this directory. -Note that this should end with a directory separator.") +Note that this should end with a directory separator. +See also `locate-user-emacs-file'.") + +(defun locate-user-emacs-file (new-name &optional old-name) + "Return an absolute per-user Emacs-specific file name. +If OLD-NAME is non-nil and ~/OLD-NAME exists, return ~/OLD-NAME. +Else return NEW-NAME in `user-emacs-directory', creating the +directory if it does not exist." + (convert-standard-filename + (let* ((home (concat "~" (or init-file-user ""))) + (at-home (and old-name (expand-file-name old-name home)))) + (if (and at-home (file-readable-p at-home)) + at-home + (unless (or purify-flag ;; don't create dir while dumping + (file-accessible-directory-p + (directory-file-name user-emacs-directory))) + (make-directory user-emacs-directory t)) ;; don't catch errors + (expand-file-name new-name user-emacs-directory))))) ;;;; Misc. useful functions. |