Commit a273d3e0 authored by Gerd Moellmann's avatar Gerd Moellmann

(autoload-ensure-default-file, autoload-insert-section-header)

(autoload-before-p, autoload-remove-section): New functions.
(generate-file-autoloads): Use them.
(update-file-autoloads): Use them.  Return FILE if there's no cookie.
Make sure the autoload file is properly formatted when creating it.
(update-autoloads-from-directories): Use them as well.
Only update autoloads for files whose timestamp has changed.
Add a dummy entry to remember the files which had no autoload cookies.
parent 1c549bbe
......@@ -230,6 +230,44 @@ markers before we call `read'."
(print-escape-nonascii t))
(print form outbuf)))))))
(defun autoload-ensure-default-file (file)
"Make sure that the autoload file FILE exists and if not create it."
(unless (file-exists-p file)
(concat ";;; " (file-name-nondirectory file)
" --- automatically extracted autoloads\n"
";;; Code:\n\n"
" \n;; Local Variables:\n"
";; version-control: never\n"
";; no-byte-compile: t\n"
";; no-update-autoloads: t\n"
";; End:\n"
";;; " (file-name-nondirectory file)
"ends here\n")
nil file))
(defun autoload-insert-section-header (outbuf autoloads load-name file time)
"Insert the section-header line,
which lists the file name and which functions are in it, etc."
(insert generate-autoload-section-header)
(prin1 (list 'autoloads autoloads load-name
(if (stringp file) (autoload-trim-file-name file) file)
(terpri outbuf)
;; Break that line at spaces, to avoid very long lines.
;; Make each sub-line into a comment.
(with-current-buffer outbuf
(forward-line -1)
(while (not (eolp))
(move-to-column 64)
(skip-chars-forward "^ \n")
(or (eolp)
(insert "\n" generate-autoload-section-continuation))))))
(defun generate-file-autoloads (file)
"Insert at point a loaddefs autoload section for FILE.
autoloads are generated for defuns and defmacros in FILE
......@@ -328,22 +366,8 @@ are used."
;; Insert the section-header line
;; which lists the file name and which functions are in it, etc.
(insert generate-autoload-section-header)
(prin1 (list 'autoloads autoloads-done load-name
(autoload-trim-file-name file)
(nth 5 (file-attributes file)))
(terpri outbuf)
;; Break that line at spaces, to avoid very long lines.
;; Make each sub-line into a comment.
(with-current-buffer outbuf
(forward-line -1)
(while (not (eolp))
(move-to-column 64)
(skip-chars-forward "^ \n")
(or (eolp)
(insert "\n" generate-autoload-section-continuation)))))
(autoload-insert-section-header outbuf autoloads-done load-name file
(nth 5 (file-attributes file)))
(insert ";;; Generated autoloads from "
(autoload-trim-file-name file) "\n")
(goto-char output-end)
......@@ -353,14 +377,16 @@ are used."
(defun update-file-autoloads (file)
"Update the autoloads for FILE in `generated-autoload-file'
\(which FILE might bind in its local variables)."
\(which FILE might bind in its local variables).
Return FILE if there was no autoload cookie in it."
(interactive "fUpdate autoloads for file: ")
(let ((load-name (let ((name (file-name-nondirectory file)))
(if (string-match "\\.elc?$" name)
(substring name 0 (match-beginning 0))
(found nil)
(existing-buffer (get-file-buffer file)))
(existing-buffer (get-file-buffer file))
(no-autoloads nil))
;; We want to get a value for generated-autoload-file from
;; the local variables section if it's there.
......@@ -370,9 +396,10 @@ are used."
;; but still decode EOLs.
(let ((coding-system-for-read 'raw-text))
(set-buffer (find-file-noselect
(expand-file-name generated-autoload-file
(expand-file-name "lisp"
(expand-file-name generated-autoload-file
(expand-file-name "lisp"
;; This is to make generated-autoload-file have Unix EOLs, so
;; that it is portable to all platforms.
(setq buffer-file-coding-system 'raw-text-unix))
......@@ -397,10 +424,7 @@ are used."
(if (and (or (null existing-buffer)
(not (buffer-modified-p existing-buffer)))
(listp last-time) (= (length last-time) 2)
(or (> (car last-time) (car file-time))
(and (= (car last-time) (car file-time))
(>= (nth 1 last-time)
(nth 1 file-time)))))
(not (autoload-before-p last-time file-time)))
(if (interactive-p)
(message "\
......@@ -450,13 +474,26 @@ Autoload section for %s is up to date."
(if (interactive-p)
(message "%s has no autoloads" file))
(setq no-autoloads t)
(or existing-buffer
(kill-buffer (current-buffer))))))))
(generate-file-autoloads file))))
(and (interactive-p)
(if no-autoloads file))))
(defun autoload-before-p (time1 time2)
(or (< (car time1) (car time2))
(and (= (car time1) (car time2))
(< (nth 1 time1) (nth 1 time2)))))
(defun autoload-remove-section (begin)
(goto-char begin)
(search-forward generate-autoload-section-trailer)
(delete-region begin (point)))
(defun update-autoloads-from-directories (&rest dirs)
......@@ -464,37 +501,67 @@ Autoload section for %s is up to date."
Update loaddefs.el with all the current autoloads from DIRS, and no old ones.
This uses `update-file-autoloads' (which see) do its work."
(interactive "DUpdate autoloads from directory: ")
(let ((files (apply 'nconc
(mapcar (function (lambda (dir)
(directory-files (expand-file-name dir)
(setq autoloads-file
(let* ((files (apply 'nconc
(mapcar (lambda (dir)
(directory-files (expand-file-name dir)
;; FIXME: add .gz etc...
t "^[^=.].*\\.el\\'"))
(this-time (current-time))
(no-autoloads nil) ;files with no autoload cookies.
(expand-file-name generated-autoload-file
(expand-file-name "lisp"
(setq top-dir (file-name-directory autoloads-file))
(set-buffer (find-file-noselect autoloads-file))
(expand-file-name "lisp" source-directory)))
(top-dir (file-name-directory autoloads-file)))
(find-file-noselect (autoload-ensure-default-file autoloads-file))
;; Canonicalize file names and remove the autoload file itself.
(setq files (delete (autoload-trim-file-name buffer-file-name)
(mapcar 'autoload-trim-file-name files)))
(goto-char (point-min))
(while (search-forward generate-autoload-section-header nil t)
(let* ((form (autoload-read-section-header))
(file (nth 3 form)))
(cond ((not (stringp file)))
(cond ((and (consp file) (stringp (car file)))
;; This is a list of files that have no autoload cookies.
;; There shouldn't be more than one such entry.
;; Remove the obsolete section.
(autoload-remove-section (match-beginning 0))
(let ((last-time (nth 4 form)))
(dolist (file file)
(let ((file-time (nth 5 (file-attributes file))))
(when (and file-time
(not (autoload-before-p last-time
;; file unchanged
(push file no-autoloads)
(setq files (delete file files)))))))
((not (stringp file)))
((not (file-exists-p (expand-file-name file top-dir)))
;; Remove the obsolete section.
(let ((begin (match-beginning 0)))
(search-forward generate-autoload-section-trailer)
(delete-region begin (point))))
(autoload-remove-section (match-beginning 0)))
((equal (nth 4 form) (nth 5 (file-attributes file)))
;; File hasn't changed.
(update-file-autoloads file)))
(setq files (delete file files)))))
;; Elements remaining in FILES have no existing autoload sections.
(mapcar 'update-file-autoloads files)
;; Elements remaining in FILES have no existing autoload sections yet.
(setq no-autoloads
(append no-autoloads
(delq nil (mapcar 'update-file-autoloads files))))
(when no-autoloads
;; Add the `no-autoloads' section.
(goto-char (point-max))
(search-backward "\f" nil t)
(current-buffer) nil nil no-autoloads this-time)
(insert generate-autoload-section-trailer))
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