;;; executable.el --- base functionality for executable interpreter scripts -*- byte-compile-dynamic: t -*-
-;; Copyright (C) 1994, 1995, 1996, 2000 by Free Software Foundation, Inc.
+;; Copyright (C) 1994-1996, 2000-2011 Free Software Foundation, Inc.
;; Author: Daniel Pfeiffer <occitan@esperanto.org>
;; Keywords: languages, unix
;; This file is part of GNU Emacs.
-;; GNU Emacs is free software; you can redistribute it and/or modify
+;; GNU Emacs 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, or (at your option)
-;; any later version.
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs; see the file COPYING. If not, write to the
-;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-;; Boston, MA 02111-1307, USA.
+;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;;; Code:
(defgroup executable nil
- "Base functionality for executable interpreter scripts"
+ "Base functionality for executable interpreter scripts."
:group 'processes)
;; This used to default to `other', but that doesn't seem to have any
(defvaralias 'executable-binary-suffixes 'exec-suffixes)
;;;###autoload
-(defun executable-find (command)
- "Search for COMMAND in `exec-path' and return the absolute file name.
-Return nil if COMMAND is not found anywhere in `exec-path'."
- (let ((list exec-path)
- file)
- (while list
- (setq list
- (if (and (setq file (expand-file-name command (car list)))
- (let ((suffixes exec-suffixes)
- candidate)
- (while suffixes
- (setq candidate (concat file (car suffixes)))
- (if (and (file-executable-p candidate)
- (not (file-directory-p candidate)))
- (setq suffixes nil)
- (setq suffixes (cdr suffixes))
- (setq candidate nil)))
- (setq file candidate)))
- nil
- (setq file nil)
- (cdr list))))
- file))
+(defun executable-command-find-posix-p (&optional program)
+ "Check if PROGRAM handles arguments Posix-style.
+If PROGRAM is non-nil, use that instead of \"find\"."
+ ;; Pick file to search from location we know
+ (let* ((dir (file-truename data-directory))
+ (file (car (directory-files dir nil "^[^.]"))))
+ (with-temp-buffer
+ (call-process (or program "find")
+ nil
+ (current-buffer)
+ nil
+ dir
+ "-name"
+ file
+ "-maxdepth"
+ "1")
+ (goto-char (point-min))
+ (if (search-forward file nil t)
+ t))))
(defun executable-chmod ()
"This gets called after saving a file to assure that it be executable.
(file-modes buffer-file-name)))))))
+;;;###autoload
(defun executable-interpret (command)
"Run script with user-specified args, and collect output in a buffer.
-While script runs asynchronously, you can use the \\[next-error] command
-to find the next error."
+While script runs asynchronously, you can use the \\[next-error]
+command to find the next error. The buffer is also in `comint-mode' and
+`compilation-shell-minor-mode', so that you can answer any prompts."
(interactive (list (read-string "Run script: "
(or executable-command
buffer-file-name))))
(require 'compile)
(save-some-buffers (not compilation-ask-about-save))
- (make-local-variable 'executable-command)
- (compile-internal (setq executable-command command)
- "No more errors." "Interpretation"
- ;; Give it a simpler regexp to match.
- nil executable-error-regexp-alist))
+ (set (make-local-variable 'executable-command) command)
+ (let ((compilation-error-regexp-alist executable-error-regexp-alist))
+ (compilation-start command t (lambda (x) "*interpretation*"))))
(not (or insert-flag executable-insert))
(> (point-min) 1)
(save-excursion
- (let ((point (point-marker))
- (buffer-modified-p (buffer-modified-p)))
- (goto-char (point-min))
- (add-hook 'after-save-hook 'executable-chmod nil t)
- (if (looking-at "#![ \t]*\\(.*\\)$")
- (and (goto-char (match-beginning 1))
- ;; If the line ends in a space,
- ;; don't offer to change it.
- (not (= (char-after (1- (match-end 1))) ?\ ))
- (not (string= argument
- (buffer-substring (point) (match-end 1))))
- (if (or (not executable-query) no-query-flag
- (save-window-excursion
- ;; Make buffer visible before question.
- (switch-to-buffer (current-buffer))
- (y-or-n-p (concat "Replace magic number by `"
- executable-prefix argument "'? "))))
- (progn
- (replace-match argument t t nil 1)
- (message "Magic number changed to `%s'"
- (concat executable-prefix argument)))))
- (insert executable-prefix argument ?\n)
- (message "Magic number changed to `%s'"
- (concat executable-prefix argument)))
-;;; (or insert-flag
-;;; (eq executable-insert t)
-;;; (set-buffer-modified-p buffer-modified-p))
- )))
+ (goto-char (point-min))
+ (add-hook 'after-save-hook 'executable-chmod nil t)
+ (if (looking-at "#![ \t]*\\(.*\\)$")
+ (and (goto-char (match-beginning 1))
+ ;; If the line ends in a space,
+ ;; don't offer to change it.
+ (not (= (char-after (1- (match-end 1))) ?\s))
+ (not (string= argument
+ (buffer-substring (point) (match-end 1))))
+ (if (or (not executable-query) no-query-flag
+ (save-window-excursion
+ ;; Make buffer visible before question.
+ (switch-to-buffer (current-buffer))
+ (y-or-n-p (concat "Replace magic number by `"
+ executable-prefix argument "'? "))))
+ (progn
+ (replace-match argument t t nil 1)
+ (message "Magic number changed to `%s'"
+ (concat executable-prefix argument)))))
+ (insert executable-prefix argument ?\n)
+ (message "Magic number changed to `%s'"
+ (concat executable-prefix argument)))))
interpreter)
(and (>= (buffer-size) 2)
(save-restriction
(widen)
- (string= "#!" (buffer-substring 1 3)))
+ (string= "#!" (buffer-substring (point-min) (+ 2 (point-min)))))
(let* ((current-mode (file-modes (buffer-file-name)))
(add-mode (logand ?\111 (default-file-modes))))
(or (/= (logand ?\111 current-mode) 0)