bug#9110: how to map sh-mode to mean bash-mode

bug#9110: how to map sh-mode to mean bash-mode

[jidanni]

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.

bug#9110: how to map sh-mode to mean bash-mode

[Glenn Morris]

jidanni@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"))))

bug#9110: closed (Re: bug#9110: how to map sh-mode to mean bash-mode)

[jidanni]

>>>>> "GbTS" == GNU bug Tracking System <help-debbugs@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.

bug#9110: closed (Re: bug#9110: how to map sh-mode to mean bash-mode)

[Stefan Monnier]

> 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

bug#9110: how to map sh-mode to mean bash-mode

[jidanni]

>>>>> "SM" == Stefan Monnier <monnier@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.

Re: how to map sh-mode to mean bash-mode

[Andreas Röhler]

Am 17.07.2011 22:42, schrieb jidanni@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.

bug#9110: how to map sh-mode to mean bash-mode

[jidanni]

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