GNU bug report logs - #16938
24.3.50; Support the Dash shell shebang and .[bd]sh file types

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

From: John Yates <john <at> yates-sheets.org>
To: bug-gnu-emacs <at> gnu.org
Subject: 24.3.50; Support the Dash shell shebang and .[bd]sh file types
Date: Tue, 4 Mar 2014 13:14:34 -0500

[Message part 1 (text/plain, inline)]

#!/bin/sh is interpreted inconsistently across platforms.  In the rpm
world it most often maps to /bin/bash.  In the Debian universe it maps
to /bin/dash.  Bash and dash have subtle differences that have bitten
me often enough to cause me now to use precise shebangs (#!/bin/bash or
#!/bin/dash) and to suffix my files with either .bsh or .dsh.

At present emacs' interpreter-mode-alist knows nothing about dash and
its auto-mode-alist is ignorant of both the .bsh and .dsh suffixes.

For interpreter-mode-alist I suggest adding the follow entry:

     ("dash" . sh-mode)


For auto-mode-alist I suggest changing the follow entry:

     ("\\.[ck]?sh\\'\\|\\.shar\\'\\|/\\.z?profile\\'" . sh-mode)

to

     ("\\.[bcdk]?sh\\'\\|\\.shar\\'\\|/\\.z?profile\\'" . sh-mode)

/john

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Message #8 received at 16938 <at> debbugs.gnu.org (full text, mbox):

From: Glenn Morris <rgm <at> gnu.org>
To: John Yates <john <at> yates-sheets.org>
Cc: 16938 <at> debbugs.gnu.org
Subject: Re: bug#16938: 24.3.50;
 Support the Dash shell shebang and .[bd]sh file types
Date: Tue, 04 Mar 2014 21:47:35 -0500

John Yates wrote:

> For interpreter-mode-alist I suggest adding the follow entry:
>
>      ("dash" . sh-mode)

Sounds good.

> For auto-mode-alist I suggest changing the follow entry:
>
>      ("\\.[ck]?sh\\'\\|\\.shar\\'\\|/\\.z?profile\\'" . sh-mode)
>
> to
>
>      ("\\.[bcdk]?sh\\'\\|\\.shar\\'\\|/\\.z?profile\\'" . sh-mode)

I've never come across .bsh and .dsh used as extensions in this way.
I find zero examples on two random RHEL6, Debian testing machines.
The only .bsh files are LibreOffice components that are not bash scripts.
So this seems like something for your personal .emacs.

Message #11 received at 16938 <at> debbugs.gnu.org (full text, mbox):

From: John Yates <john <at> yates-sheets.org>
To: Glenn Morris <rgm <at> gnu.org>
Cc: 16938 <at> debbugs.gnu.org
Subject: Re: bug#16938: 24.3.50; Support the Dash shell shebang and .[bd]sh
 file types
Date: Wed, 5 Mar 2014 08:21:03 -0500

[Message part 1 (text/plain, inline)]

Hi Glenn,

Thanks for the quick reply.

On Tue, Mar 4, 2014 at 9:47 PM, Glenn Morris <rgm <at> gnu.org> wrote:

> >      ("dash" . sh-mode)
>
> Sounds good.
>

That's the one that really matters to me as many (most?) of my scripts have
no file extension.

I've never come across .bsh and .dsh used as extensions in this way.
> I find zero examples on two random RHEL6, Debian testing machines.
> The only .bsh files are LibreOffice components that are not bash scripts.
> So this seems like something for your personal .emacs.
>

I guess I suggested .bsh and .dsh for completeness.  My first encounter
with .bsh was on my newest job.  I introduced .dsh once I started using a
#!/bin/dash shebang.  Given that you found a LibreOffice conflict I am
happy to withdraw my suggestion.

/john

[Message part 2 (text/html, inline)]

Message #16 received at 16938-done <at> debbugs.gnu.org (full text, mbox):

From: Glenn Morris <rgm <at> gnu.org>
To: 16938-done <at> debbugs.gnu.org
Subject: Re: bug#16938: 24.3.50;
 Support the Dash shell shebang and .[bd]sh file types
Date: Wed, 05 Mar 2014 13:59:46 -0500

Version: 24.4

Glenn Morris wrote:

>> For interpreter-mode-alist I suggest adding the follow entry:
>>
>>      ("dash" . sh-mode)

Added.

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