Function: w32-check-shell-configuration

w32-check-shell-configuration is an interactive and byte-compiled function defined in w32-fns.el.gz.

Signature

(w32-check-shell-configuration)

Documentation

Check the configuration of shell variables on Windows.

This function is invoked after loading the init files and processing the command line arguments. It issues a warning if the user or site has configured the shell with inappropriate settings.

Key Bindings

Source Code

;; Defined in /usr/src/emacs/lisp/w32-fns.el.gz
(defvar w32-quote-process-args)  ;; defined in w32proc.c

(defun w32-check-shell-configuration ()
  "Check the configuration of shell variables on Windows.
This function is invoked after loading the init files and processing
the command line arguments.  It issues a warning if the user or site
has configured the shell with inappropriate settings."
  (interactive)
  (let ((prev-buffer (current-buffer))
	(buffer (get-buffer-create "*Shell Configuration*"))
	(system-shell))
    (set-buffer buffer)
    (erase-buffer)
    (if (w32-system-shell-p (getenv "ESHELL"))
	(insert (format "Warning! The ESHELL environment variable uses %s.
You probably want to change it so that it uses cmdproxy.exe instead.\n\n"
			(getenv "ESHELL"))))
    (if (w32-system-shell-p (getenv "SHELL"))
	(insert (format "Warning! The SHELL environment variable uses %s.
You probably want to change it so that it uses cmdproxy.exe instead.\n\n"
			(getenv "SHELL"))))
    (if (w32-system-shell-p shell-file-name)
	(insert (format "Warning! shell-file-name uses %s.
You probably want to change it so that it uses cmdproxy.exe instead.\n\n"
			shell-file-name)))
    (if (and (boundp 'explicit-shell-file-name)
	     (w32-system-shell-p explicit-shell-file-name))
	(insert (format "Warning! explicit-shell-file-name uses %s.
You probably want to change it so that it uses cmdproxy.exe instead.\n\n"
			explicit-shell-file-name)))
    (setq system-shell (> (buffer-size) 0))

    ;; Allow user to specify that they really do want to use one of the
    ;; "system" shells, despite the drawbacks, but still warn if
    ;; shell-command-switch doesn't match.
    (if w32-allow-system-shell
	(erase-buffer))

    (cond (system-shell
	   ;; System shells.
	   (if (string-equal "-c" shell-command-switch)
	       (insert "Warning! shell-command-switch is \"-c\".
You should set this to \"/c\" when using a system shell.\n\n"))
	   (if w32-quote-process-args
	       (insert "Warning! w32-quote-process-args is t.
You should set this to nil when using a system shell.\n\n")))
	  ;; Non-system shells.
	  (t
	   (if (string-equal "/c" shell-command-switch)
	       (insert "Warning! shell-command-switch is \"/c\".
You should set this to \"-c\" when using a non-system shell.\n\n"))
	   (if (not w32-quote-process-args)
	       (insert "Warning! w32-quote-process-args is nil.
You should set this to t when using a non-system shell.\n\n"))))
    (if (> (buffer-size) 0)
	(display-buffer buffer)
      (kill-buffer buffer))
    (set-buffer prev-buffer)))