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|
;;; rcompile.el --- run a compilation on a remote machine -*- lexical-binding: t; -*-
;; Copyright (C) 1993-1994, 2001-2021 Free Software Foundation, Inc.
;; Author: Alon Albert <alon@milcse.rtsg.mot.com>
;; Maintainer: emacs-devel@gnu.org
;; Created: 1993 Oct 6
;; Keywords: tools, processes
;; Obsolete-since: 24.4
;; This file is part of GNU Emacs.
;; 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 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
;; 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 GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
;;; Commentary:
;; This package is for running a remote compilation and using emacs to parse
;; the error messages. It works by rsh'ing the compilation to a remote host
;; and parsing the output. If the file visited at the time remote-compile was
;; called was loaded remotely (ange-ftp), the host and user name are obtained
;; by the calling ange-ftp-ftp-name on the current directory. In this case the
;; next-error command will also ange-ftp the files over. This is achieved
;; automatically because the compilation-parse-errors function uses
;; default-directory to build its file names. If however the file visited was
;; loaded locally, remote-compile prompts for a host and user and assumes the
;; files mounted locally (otherwise, how was the visited file loaded).
;; See the user defined variables section for more info.
;; I was contemplating redefining "compile" to "remote-compile" automatically
;; if the file visited was ange-ftp'ed but decided against it for now. If you
;; feel this is a good idea, let me know and I'll consider it again.
;; Installation:
;; To use rcompile, you also need to give yourself permission to connect to
;; the remote host. You do this by putting lines like:
;; monopoly alon
;; vme33
;;
;; in a file named .rhosts in the home directory (of the remote machine).
;; Be careful what you put in this file. A line like:
;;
;; +
;;
;; Will allow anyone access to your account without a password. I suggest you
;; read the rhosts(5) manual page before you edit this file (if you are not
;; familiar with it already)
;;; Code:
(provide 'rcompile)
(require 'compile)
;;; The following should not be needed.
;;; (eval-when-compile (require 'ange-ftp))
;;;; user defined variables
(defgroup remote-compile nil
"Run a compilation on a remote machine."
:group 'processes
:group 'tools)
(defcustom remote-compile-host nil
"Host for remote compilations."
:type '(choice string (const nil)))
(defcustom remote-compile-user nil
"User for remote compilations.
nil means use the value returned by \\[user-login-name]."
:type '(choice string (const nil)))
(defcustom remote-compile-run-before nil
"Command to run before compilation.
This can be used for setting up environment variables,
since rsh does not invoke the shell as a login shell and files like .login
\(tcsh) and .bash_profile \(bash) are not run.
nil means run no commands."
:type '(choice string (const nil)))
(defcustom remote-compile-prompt-for-host nil
"Non-nil means prompt for host if not available from filename."
:type 'boolean)
(defcustom remote-compile-prompt-for-user nil
"Non-nil means prompt for user if not available from filename."
:type 'boolean)
;;;; internal variables
;; History of remote compile hosts and users
(defvar remote-compile-host-history nil)
(defvar remote-compile-user-history nil)
;;;; entry point
;; We use the Tramp internal function`tramp-make-tramp-file-name'.
;; Better would be, if there are functions to provide user, host and
;; localname of a remote filename, independent of Tramp's implementation.
;; The function calls are wrapped by `funcall' in order to pacify the byte
;; compiler. ange-ftp check removed, because it is handled also by Tramp.
;;;###autoload
(defun remote-compile (host user command)
"Compile the current buffer's directory on HOST. Log in as USER.
See \\[compile]."
(interactive
(let (host user command prompt) ;; l l-host l-user
(setq prompt (if (stringp remote-compile-host)
(format "Compile on host (default %s): "
remote-compile-host)
"Compile on host: ")
host (if (or remote-compile-prompt-for-host
(null remote-compile-host))
(read-from-minibuffer prompt
"" nil nil
'remote-compile-host-history)
remote-compile-host)
user (if remote-compile-prompt-for-user
(read-from-minibuffer (format
"Compile by user (default %s): "
(or remote-compile-user
(user-login-name)))
"" nil nil
'remote-compile-user-history)
remote-compile-user))
(setq command (read-from-minibuffer "Compile command: "
compile-command nil nil
'(compile-history . 1)))
(list (if (string= host "") remote-compile-host host)
(if (string= user "") remote-compile-user user)
command)))
(setq compile-command command)
(cond (user
(setq remote-compile-user user))
((null remote-compile-user)
(setq remote-compile-user (user-login-name))))
(let* (;; localname ;; Pacify byte-compiler.
(compile-command
(format "%s %s -l %s \"(%scd %s; %s)\""
remote-shell-program
host
remote-compile-user
(if remote-compile-run-before
(concat remote-compile-run-before "; ")
"")
""
compile-command)))
(setq remote-compile-host host)
(save-some-buffers nil nil)
(compilation-start compile-command)
;; Set comint-file-name-prefix in the compilation buffer so
;; compilation-parse-errors will find referenced files by Tramp.
(with-current-buffer compilation-last-buffer
(when (fboundp 'tramp-make-tramp-file-name)
(set (make-local-variable 'comint-file-name-prefix)
(tramp-make-tramp-file-name
nil ;; method.
remote-compile-user
remote-compile-host
""))))))
;;; rcompile.el ends here
|
