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;;; Time-stamp: <2006-12-01 20:13:12 jcgs>
;; This program is free software; you can redistribute it and/or modify it
;; under the terms of the GNU General Public License as published by the
;; Free Software Foundation; either version 2 of the License, or (at your
;; option) any later version.
;; This program is distributed in the hope that it will be useful, but
;; WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
;; General Public License for more details.
;; You should have received a copy of the GNU General Public License along
;; with this program; if not, write to the Free Software Foundation, Inc.,
;; 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
(provide 'load-directory)
(defvar load-directory-loaded nil
"The files loaded by load-directory.")
(defvar load-directory-bytes 0
"The number of bytes loaded by load-directory.")
(defvar load-directory-pattern
"\\.\\(elc?\\)\\|\\(ELC?\\)$"
"Pattern for which files to load when loading all elisp in a directory.
Unfortunately, directory-files insists on treating its pattern
case-sensitively, case-fold-search notwithstanding.")
(setq load-directory-pattern "\\.elc?$")
(defvar load-directory-pre-load-file-hooks nil
"Functions to be called on each filename loaded by load-directory, just before loading that file.")
(defvar load-directory-post-load-file-hooks nil
"Functions to be called on each filename loaded by load-directory, just after loading that file.")
(defvar load-directory-file-conses nil
;; message "while loading %s, there were %d new conses, %d new symbols, %d more string chars"
"How much storage was allocated by each file loaded.")
(defun load-directory (dir &optional lisp-only)
"Load all the el or elc files in DIR.
If the optional second argument is not given, or is nil:
if there are both an elc and an el file for the same base name, load only
the elc file.
If the optional second argument is non-nil, load only .el files."
(interactive "DDirectory to load emacs files from:
P")
(if (or t (yes-or-no-p (format "Load directory %s? " dir)))
(let ((files (directory-files (expand-file-name (substitute-in-file-name dir)) t
load-directory-pattern))
(load-compiled (not lisp-only))
(gc-before (garbage-collect))
gc-after)
(message "load-directory: files are %s" files)
(let ((stack-trace-on-error t))
(while files
(let ((file (car files)))
(if (or (and load-compiled
(string-match "c$" file))
;; don't load <name>.el if <name>.elc exists
(not (file-exists-p (concat file "c"))))
(if (or t (y-or-n-p (format "Load file %s? " file)))
(progn
(condition-case error-var
(progn
(message "Loading %s..." file)
(message "(load-file \"%s\")" file)
(run-hook-with-args 'load-directory-pre-load-file-hooks file)
(if (or t (y-or-n-p (format "load %s? " file)))
(load-file file))
(setq gc-after (garbage-collect)
load-directory-file-conses (cons
(list file
(- (car (car gc-after))
(car (car gc-before)))
(- (car (car (cdr gc-after)))
(car (car (cdr gc-before))))
(- (nth 4 gc-after) (nth 4 gc-before)))
load-directory-file-conses)
gc-before gc-after)
(if (eq system-type 'berkely-unix)
(message "PS: %s" (shell-command-to-string (format "ps -vp %d" (emacs-pid)))))
(run-hook-with-args 'load-directory-post-load-file-hooks file)
(message "Loading %s... done" file))
(error
(progn
;; unfortunately, handling it here means we don't get a backtrace!
(if (get-buffer "*Backtrace*")
(progn
(set-buffer "*Backtrace*")
(rename-buffer (format "*Backtrace-%s*" file) t)))
(if (eq (car error-var) 'file-error)
(message "load-path is %S" load-path))
(message "Problem in loading %s: %s" file error-var)
(sit-for 2))))
(setq load-directory-loaded (cons file load-directory-loaded)
load-directory-bytes (+ load-directory-bytes
(nth 7 (file-attributes file))))))))
(setq files (cdr files)))))
(message "Skipped loading directory %s at user request" dir)))
;;; useful auxiliary function for the above
(defun find-subdirectory-from-path (subdir)
"Return a full pathname for SUBDIR as a subdirectory of something on load-path"
(interactive "sFind subdir from path: ")
(catch 'found
(let ((lp load-path))
(while lp
(let* ((fulldir (expand-file-name (car lp)))
(fullsubdir (expand-file-name subdir fulldir)))
(if (file-directory-p fullsubdir)
(throw 'found fullsubdir)))
(setq lp (cdr lp))))
nil))
;;; end of load-directory.el
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