GNU bug report logs - #25670
Feature request: ignore --help in --script mode

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Clément Pit--Claudel <clement.pitclaudel <at> live.com>
Subject: bug#25670: closed (Re: bug#25670: Feature request: ignore --help
 in --script mode)
Date: Fri, 10 Feb 2017 16:54:02 +0000

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Your bug report

#25670: Feature request: ignore --help in --script mode

which was filed against the emacs package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 25670 <at> debbugs.gnu.org.

-- 
25670: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=25670
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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From: Clément Pit--Claudel <clement.pitclaudel <at> live.com>
To: Ted Zlatanov <tzz <at> lifelogs.com>
Cc: 25670-done <at> debbugs.gnu.org
Subject: Re: bug#25670: Feature request: ignore --help in --script mode
Date: Fri, 10 Feb 2017 11:52:50 -0500

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On 2017-02-10 10:05, Ted Zlatanov wrote:
> On Thu, 9 Feb 2017 16:00:59 -0500 Clément Pit--Claudel <clement.pitclaudel <at> live.com> wrote: 
> 
> CP> More generally, could we guarantee that options that appear *after* "--script" aren't processed by Emacs itself (and instead left to the script)?  Or would that break things?
> 
> Typically I've seen "--" used to indicate the end of parseable options.
> Would it help?

Yes! And in fact it seems to work :) Neat.

$ emacs -Q --batch --eval '(print argv)' -- --help
("--" "--help")

I see now that it was mentioned in http://www.lunaryorn.com/posts/emacs-script-pitfalls.html.  Not sure how I missed it.

Thanks Ted!
Clément.

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From: Clément Pit--Claudel <clement.pitclaudel <at> live.com>
To: bug-gnu-emacs <at> gnu.org
Subject: Feature request: ignore --help in --script mode
Date: Thu, 9 Feb 2017 16:00:59 -0500

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Hi bug-gnu-emacs,

Event with --script, Emacs still displays its help when passed --help.  This is confusing for users (they might write emacs --script some-script.el --help expecting to get help on the script, but instead they get Emacs' help), and it force ELisp scripts to use --usage or some other harder-to-guess synonym.

Could this be changed so that emacs --script a.el --help does not show Emacs' help?

More generally, could we guarantee that options that appear *after* "--script" aren't processed by Emacs itself (and instead left to the script)?  Or would that break things?

Thanks!
Clément.

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