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Most of this change is to boilerplate commentary such as license URLs. This change was prompted by ftp://ftp.gnu.org's going-away party, planned for November. Change these FTP URLs to https://ftp.gnu.org instead. Make similar changes for URLs to other organizations moving away from FTP. Also, change HTTP to HTTPS for URLs to gnu.org and fsf.org when this works, as this will further help defend against man-in-the-middle attacks (for this part I omitted the MS-DOS and MS-Windows sources and the test tarballs to keep the workload down). HTTPS is not fully working to lists.gnu.org so I left those URLs alone for now.
143 lines
4.7 KiB
EmacsLisp
143 lines
4.7 KiB
EmacsLisp
;;; em-tramp.el --- Eshell features that require TRAMP -*- lexical-binding:t -*-
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;; Copyright (C) 1999-2017 Free Software Foundation, Inc.
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;; Author: Aidan Gauland <aidalgol@no8wireless.co.nz>
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
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;;; Commentary:
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;; Eshell features that require TRAMP.
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;;; Code:
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(require 'esh-util)
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(eval-when-compile
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(require 'esh-mode)
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(require 'eshell)
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(require 'tramp))
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;;;###autoload
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(progn
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(defgroup eshell-tramp nil
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"This module defines commands that use TRAMP in a way that is
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not transparent to the user. So far, this includes only the
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built-in su and sudo commands, which are not compatible with
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the full, external su and sudo commands, and require the user
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to understand how to use the TRAMP sudo method."
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:tag "TRAMP Eshell features"
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:group 'eshell-module))
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(defun eshell-tramp-initialize ()
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"Initialize the TRAMP-using commands code."
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(when (eshell-using-module 'eshell-cmpl)
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(add-hook 'pcomplete-try-first-hook
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'eshell-complete-host-reference nil t))
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(make-local-variable 'eshell-complex-commands)
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(setq eshell-complex-commands
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(append '("su" "sudo")
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eshell-complex-commands)))
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(autoload 'eshell-parse-command "esh-cmd")
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(defun eshell/su (&rest args)
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"Alias \"su\" to call TRAMP.
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Uses the system su through TRAMP's su method."
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(setq args (eshell-stringify-list (eshell-flatten-list args)))
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(let ((orig-args (copy-tree args)))
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(eshell-eval-using-options
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"su" args
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'((?h "help" nil nil "show this usage screen")
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(?l "login" nil login "provide a login environment")
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(? nil nil login "provide a login environment")
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:usage "[- | -l | --login] [USER]
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Become another USER during a login session.")
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(throw 'eshell-replace-command
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(let ((user "root")
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(host (or (file-remote-p default-directory 'host)
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"localhost"))
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(dir (file-local-name (expand-file-name default-directory)))
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(prefix (file-remote-p default-directory)))
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(dolist (arg args)
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(if (string-equal arg "-") (setq login t) (setq user arg)))
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;; `eshell-eval-using-options' does not handle "-".
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(if (member "-" orig-args) (setq login t))
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(if login (setq dir "~/"))
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(if (and prefix
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(or
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(not (string-equal
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"su" (file-remote-p default-directory 'method)))
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(not (string-equal
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user (file-remote-p default-directory 'user)))))
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(eshell-parse-command
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"cd" (list (format "%s|su:%s@%s:%s"
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(substring prefix 0 -1) user host dir)))
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(eshell-parse-command
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"cd" (list (format "/su:%s@%s:%s" user host dir)))))))))
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(put 'eshell/su 'eshell-no-numeric-conversions t)
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(defun eshell/sudo (&rest args)
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"Alias \"sudo\" to call Tramp.
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Uses the system sudo through TRAMP's sudo method."
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(setq args (eshell-stringify-list (eshell-flatten-list args)))
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(let ((orig-args (copy-tree args)))
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(eshell-eval-using-options
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"sudo" args
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'((?h "help" nil nil "show this usage screen")
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(?u "user" t user "execute a command as another USER")
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:show-usage
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:usage "[(-u | --user) USER] COMMAND
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Execute a COMMAND as the superuser or another USER.")
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(throw 'eshell-external
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(let ((user (or user "root"))
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(host (or (file-remote-p default-directory 'host)
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"localhost"))
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(dir (file-local-name (expand-file-name default-directory)))
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(prefix (file-remote-p default-directory)))
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;; `eshell-eval-using-options' reads options of COMMAND.
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(while (and (stringp (car orig-args))
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(member (car orig-args) '("-u" "--user")))
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(setq orig-args (cddr orig-args)))
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(let ((default-directory
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(if (and prefix
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(or
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(not
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(string-equal
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"sudo"
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(file-remote-p default-directory 'method)))
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(not
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(string-equal
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user
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(file-remote-p default-directory 'user)))))
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(format "%s|sudo:%s@%s:%s"
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(substring prefix 0 -1) user host dir)
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(format "/sudo:%s@%s:%s" user host dir))))
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(eshell-named-command (car orig-args) (cdr orig-args))))))))
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(put 'eshell/sudo 'eshell-no-numeric-conversions t)
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(provide 'em-tramp)
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;; Local Variables:
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;; generated-autoload-file: "esh-groups.el"
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;; End:
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;;; em-tramp.el ends here
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