GNU bug report logs - #9110
how to map sh-mode to mean bash-mode

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: jidanni <at> jidanni.org
To: bug-gnu-emacs <at> gnu.org
Cc: help-gnu-emacs <at> gnu.org, andreas.roehler <at> easy-emacs.de, pedzsan <at> gmail.com
Subject: Re: how to map sh-mode to mean bash-mode
Date: Mon, 18 Jul 2011 04:42:37 +0800

Dear bug-gnu-emacs,
There is no way to map sh-mode to bash-mode.
As you know, the bash shell likes to call itself sh sometimes.
But it is really still bash.
Hence I would like to make my emacs assume anything it thinks is sh is
really bash, and thus show me "bash" in the mode line, not "sh", no
matter how smart it thinks it is. See also
http://lists.gnu.org/archive/html/help-gnu-emacs/2011-07/msg00143.html
However the real solution should be a one liner of lisp in ones .emacs.

Message #10 received at 9110-done <at> debbugs.gnu.org (full text, mbox):

From: Glenn Morris <rgm <at> gnu.org>
To: 9110-done <at> debbugs.gnu.org
Subject: Re: bug#9110: how to map sh-mode to mean bash-mode
Date: Sun, 17 Jul 2011 19:02:26 -0400

jidanni <at> jidanni.org wrote:

> As you know, the bash shell likes to call itself sh sometimes.
> But it is really still bash.

No, it isn't.

> Hence I would like to make my emacs assume anything it thinks is sh is
> really bash, and thus show me "bash" in the mode line, not "sh", no
> matter how smart it thinks it is.

(add-hook 'sh-mode-hook
          '(lambda () (and buffer-file-name
                           (string-match "\\.sh\\'" buffer-file-name)
                           (sh-set-shell "bash"))))

Message #13 received at 9110 <at> debbugs.gnu.org (full text, mbox):

From: jidanni <at> jidanni.org
To: 9110 <at> debbugs.gnu.org
Subject: Re: bug#9110: closed (Re: bug#9110: how to map sh-mode to mean
	bash-mode)
Date: Mon, 18 Jul 2011 07:53:45 +0800

>>>>> "GbTS" == GNU bug Tracking System <help-debbugs <at> gnu.org> writes:
GbTS> (add-hook 'sh-mode-hook
GbTS>           '(lambda () (and buffer-file-name
GbTS>                            (string-match "\\.sh\\'" buffer-file-name)
GbTS>                            (sh-set-shell "bash"))))
Thanks, but that doesn't also cover the case when there is a #!/bin/sh
but no .sh or .bash.

Message #16 received at 9110 <at> debbugs.gnu.org (full text, mbox):

From: jidanni <at> jidanni.org
To: monnier <at> iro.umontreal.ca
Cc: help-gnu-emacs <at> gnu.org, 9110 <at> debbugs.gnu.org
Subject: Re: how to map sh-mode to mean bash-mode
Date: Mon, 18 Jul 2011 12:51:10 +0800

>>>>> "SM" == Stefan Monnier <monnier <at> iro.umontreal.ca> writes:
SM> Check C-h m to see how to control them.
Got it!
(add-to-list 'sh-alias-alist '(sh . bash))
Thanks!
I declare this thread closed.
Bye.
See ya.
Adios.
Hasta la pasta.

Message #19 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Andreas Röhler <andreas.roehler <at> easy-emacs.de>
To: jidanni <at> jidanni.org
Cc: help-gnu-emacs <at> gnu.org, bug-gnu-emacs <at> gnu.org, pedzsan <at> gmail.com
Subject: Re: how to map sh-mode to mean bash-mode
Date: Mon, 18 Jul 2011 07:52:04 +0200

Am 17.07.2011 22:42, schrieb jidanni <at> jidanni.org:
> Dear bug-gnu-emacs,
> There is no way to map sh-mode to bash-mode.

Again: AFAIK there no such thing like `bash-mode' in Emacs.

There is a `sh-mode' dealing with several kind of shells.
If `sh-mode' thinks you are dealing with a bash -- by shebang or 
suffix-- it provides for it. An alias is called `shell-script-mode'

See C-h f shell-script-mode RET

for what it does.

> As you know, the bash shell likes to call itself sh sometimes.

Didn't know that. Curious to read an example.

> But it is really still bash.
Well, bash might use a sh as a subset. Don't know that architecture.

> Hence I would like to make my emacs assume anything it thinks is sh is
> really bash, and thus show me "bash" in the mode line, not "sh", no
> matter how smart it thinks it is.

Could you deliver an example of usage for that?
If you send code written for a bash to a simple sh - some may work, 
others will fail.
You are surely implementing bugs then.


 See also
> http://lists.gnu.org/archive/html/help-gnu-emacs/2011-07/msg00143.html
> However the real solution should be a one liner of lisp in ones .emacs.
>

What's great about a one-liner? Usually they are hard to read.

Message #22 received at 9110 <at> debbugs.gnu.org (full text, mbox):

From: Stefan Monnier <monnier <at> iro.umontreal.ca>
To: jidanni <at> jidanni.org
Cc: 9110 <at> debbugs.gnu.org
Subject: Re: bug#9110: closed (Re: bug#9110: how to map sh-mode to mean
	bash-mode)
Date: Mon, 18 Jul 2011 11:42:56 -0400

> Thanks, but that doesn't also cover the case when there is a #!/bin/sh
> but no .sh or .bash.

If it says #!/bin/sh then it really shouldn't use bashisms.
Use #!/bin/bash for that.


        Stefan

Message #25 received at 9110 <at> debbugs.gnu.org (full text, mbox):

From: jidanni <at> jidanni.org
To: monnier <at> iro.umontreal.ca
Cc: help-gnu-emacs <at> gnu.org, 9110 <at> debbugs.gnu.org
Subject: Re: how to map sh-mode to mean bash-mode
Date: Wed, 20 Jul 2011 07:25:01 +0800

OK, I perfected it:
(eval-after-load "sh-script" '(add-to-list 'sh-alias-alist '(sh . bash)))

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