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Subject: |
Problem using `etc/emacs.bash' with EmacsW32 |
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Date: |
Thu, 4 Sep 2008 19:55:05 +0000 (UTC) |
In GNU Emacs 22.2.1 (i386-mingw-nt5.1.2600)
of 2008-03-26 on RELEASE
Windowing system distributor `Microsoft Corp.', version 5.1.2600
configured using `configure --with-gcc (3.4)'
I am attempting to use the shell script `emacs.bash' that is provided
in the `etc' directory of the GNU Emacs distribution. This script
defines the shell function named 'edit' to provide a single,
consistent command for starting Emacs and subsequently, for calling
Emacs via `emacsclient', if `server-start' has been invoked via either
the initialization file or M-x server-start.
After sourcing the script, the command 'edit [filename]' starts Emacs
as expected. However, subsequent calls to `edit' do not result in
`emacsclient' being invoked. Instead, new instances of `emacs' are
started. The reason for this is that the script contains the
following test, which fails for EmacsW32:
if [ -e "${HOME}/.emacs_server" -o -e "/tmp/emacs${UID}/server" ]; then
Neither of these files is created by EmacsW32. Instead, the file
${HOME}/.emacs.d/server/server is created, by default, when
`server-start' is invoked from EmacsW32. I would like to suggest that
`etc/emacs.bash' be changed to include that server file in its test
for starting `emacsclient', that is, change the test, above, to:
if [ -e "${HOME}/.emacs.d/server/server" -o -e "${HOME}/.emacs_server" -o -e
"/tmp/emacs${UID}/server" ]; then
With this change, the shell function `edit' then appropriately calls
`emacsclient' after Emacs has started its server.
A second problem occurs after Emacs has been stopped ("killed"). The
next time `edit' is called, the code in `etc/emacs.bash' calls
`emacsclient' even though Emacs and its server are not running. The
reason for this appears to be that the function `server-start' in
`lisp/server.el' does not remove ${HOME}/.emacs.d/server/server when
it is called when Emacs is killed via C-x C-c (that is,
`save-buffers-kill-emacs').
Here is the sequence of calls:
- When `(server-start)' is invoked, the following code in
`lisp/server.el' adds an anonymous function to `kill-emacs-hook':
(add-hook 'kill-emacs-hook (lambda () (server-mode -1))) ;Cleanup upon exit.
- When emacs is exited via C-x C-c, the function
`save-buffers-kill-emacs' is called.
- The function `save-buffers-kill-emacs' calls the function
`kill-emacs', which, in turn, calls the list of functions in
`kill-emacs-hook'.
- `server-mode' includes the form:
(server-start (not server-mode))
- When the function `server-start' is called with its optional
parameter `leave-dead' set to nil, the code in the following the
condition in the form:
(unless leave-dead ...)
is not executed. This includes the code to remove the server file
that was created when `server-start' was originally called, namely,
(let* ((server-dir (if server-use-tcp server-auth-dir server-socket-dir))
(server-file (expand-file-name server-name server-dir)))
;; Make sure there is a safe directory in which to place the socket.
(server-ensure-safe-dir server-dir)
;; Remove any leftover socket or authentication file
(ignore-errors (delete-file server-file))
...)) ; `let' and `unless'
A possible solution to this problem is to move the `(unless
leave-dead)' form inside the `(let* ...)' form after the form:
(ignore-errors (delete-file server-file))
I have made this change in my copy of `lisp/server.el' and confirmed
that `edit' works correctly for EmacsW32, that is, it starts `emacs'
if there is no instance of `emacs' running, and starts `emacsclient'
if emacs's server is running.
; End of report
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--- Begin Message ---
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Subject: |
Re: bug#890: Problem using `etc/emacs.bash' with EmacsW32 |
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Date: |
Thu, 03 Mar 2011 01:45:01 -0500 |
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User-agent: |
Gnus (www.gnus.org), GNU Emacs (www.gnu.org/software/emacs/) |
Version: 24.1
etc/emacs.bash has been removed for 24.1.
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