GNU bug report logs - #20754
checkdoc-current-buffer prints to stdout?!

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Paul Eggert <eggert <at> cs.ucla.edu>
Subject: bug#20754: closed (Re: bug#20754: checkdoc-current-buffer prints
 to stdout?!)
Date: Mon, 08 Jun 2015 09:40:05 +0000

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

Your bug report

#20754: checkdoc-current-buffer prints to stdout?!

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 20754 <at> debbugs.gnu.org.

-- 
20754: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=20754
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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From: Oleh Krehel <ohwoeowho <at> gmail.com>
To: Sebastian Wiesner <swiesner <at> lunaryorn.com>
Cc: Paul Eggert <eggert <at> cs.ucla.edu>, 20754-done <at> debbugs.gnu.org
Subject: Re: bug#20754: checkdoc-current-buffer prints to stdout?!
Date: Mon, 08 Jun 2015 11:33:00 +0200

Sebastian Wiesner <swiesner <at> lunaryorn.com> writes:

> 2015-06-08 8:35 GMT+02:00 Oleh Krehel <ohwoeowho <at> gmail.com>:
>
>     Sebastian Wiesner <swiesner <at> lunaryorn.com> writes:
>     
>     > Why can't you just leave checkdoc-current-buffer as is, and
>     introduce
>     > a new entry point?
>     
>     Done. Also added a NEWS entry.
>     
>
> Thank you very much! That's a nice change which benefits Flycheck, and
> will make checkdoc easier as soon as Flycheck drops Emacs 24
> compatibility.

You're welcome, marking as done.

[Message part 3 (message/rfc822, inline)]

From: Paul Eggert <eggert <at> cs.ucla.edu>
To: Emacs bug reports and feature requests <bug-gnu-emacs <at> gnu.org>
Cc: Sebastian Wiesner <swiesner <at> lunaryorn.com>,
 Oleh Krehel <ohwoeowho <at> gmail.com>
Subject: checkdoc-current-buffer prints to stdout?!
Date: Sat, 06 Jun 2015 11:50:57 -0700

[The following bug report was sent by Sebastian Wiesner to emacs-devel 
<http://lists.gnu.org/archive/html/emacs-devel/2015-06/msg00095.html>.]

Hello,

while debugging unit test failures in Flycheck, I accidentally discovered
checkdoc-current-buffer apparently prints messages to standard output in
Emacs 25.1 in noninteractive mode.

Would you please revert this change?

I can understand the motivation for this “feature”, but it's generally a
bad idea for an interactive function to print text to standard output
depending on an opaque global environment.  It also makes backwards
compatibility harder than it needs to be:  As things stand I have no choice
but to check the Emacs version to print Checkdoc Errors in a consistent way
across Emacs major versions, and that is somewhat ugly.

The purpose of this feature would also be served by a different entry
point—we have `ert-run-tests-interactively` and `ert-run-tests-batch`,
too.  If that is impossible please at least expose an option to turn this
feature off.

On a related topic, I'd have fixed this issue much faster, had this change
been mentioned in the NEWS.  Would you please be more strict about updating
NEWS for breaking changes such as this?

Sincerely,
Sebastian Wiesner

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