notmuch/emacs/make-deps.el
Daniel Kahn Gillmor 6a833a6e83 Use https instead of http where possible
Many of the external links found in the notmuch source can be resolved
using https instead of http.  This changeset addresses as many as i
could find, without touching the e-mail corpus or expected outputs
found in tests.
2016-06-05 08:32:17 -03:00

70 lines
2.4 KiB
EmacsLisp

;; make-deps.el --- compute make dependencies for Elisp sources
;;
;; Copyright © Austin Clements
;;
;; This file is part of Notmuch.
;;
;; Notmuch 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 3 of the License, or
;; (at your option) any later version.
;;
;; Notmuch 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 Notmuch. If not, see <https://www.gnu.org/licenses/>.
;;
;; Authors: Austin Clements <aclements@csail.mit.edu>
;;; Code:
(defun batch-make-deps ()
"Invoke `make-deps' for each file on the command line."
(setq debug-on-error t)
(dolist (file command-line-args-left)
(let ((default-directory command-line-default-directory))
(find-file-literally file))
(make-deps command-line-default-directory))
(kill-emacs))
(defun make-deps (&optional dir)
"Print make dependencies for the current buffer.
This prints make dependencies to `standard-output' based on the
top-level `require' expressions in the current buffer. Paths in
rules will be given relative to DIR, or `default-directory'."
(setq dir (or dir default-directory))
(save-excursion
(goto-char (point-min))
(condition-case nil
(while t
(let ((form (read (current-buffer))))
;; Is it a (require 'x) form?
(when (and (listp form) (= (length form) 2)
(eq (car form) 'require)
(listp (cadr form)) (= (length (cadr form)) 2)
(eq (car (cadr form)) 'quote)
(symbolp (cadr (cadr form))))
;; Find the required library
(let* ((name (cadr (cadr form)))
(fname (locate-library (symbol-name name))))
;; Is this file and the library in the same directory?
;; If not, assume it's a system library and don't
;; bother depending on it.
(when (and fname
(string= (file-name-directory (buffer-file-name))
(file-name-directory fname)))
;; Print the dependency
(princ (format "%s.elc: %s.elc\n"
(file-name-sans-extension
(file-relative-name (buffer-file-name) dir))
(file-name-sans-extension
(file-relative-name fname dir)))))))))
(end-of-file nil))))
;;; make-deps.el ends here