GNU logs - #63231, boring messages

Message sent to bug-gnu-emacs@HIDDEN:

Subject: bug#63231: 28.1; image-converter should remove warning messages while conversion
Resent-From: awrhygty@HIDDEN
Original-Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org>
Resent-CC: bug-gnu-emacs@HIDDEN
Resent-Date: Tue, 02 May 2023 08:08:01 +0000
Resent-Message-ID: <handler.63231.B.168301487332570 <at> debbugs.gnu.org>
Resent-Sender: help-debbugs@HIDDEN
To: 63231 <at> debbugs.gnu.org
From: awrhygty@HIDDEN
Date: Tue, 02 May 2023 17:02:21 +0900
Message-ID: <TYZPR01MB3920383866B724A6F9A11C62C36F9@HIDDEN>
Content-Type: text/plain
MIME-Version: 1.0
X-MS-Exchange-MessageSentRepresentingType: 1
X-MS-PublicTrafficType: Email
X-MS-TrafficTypeDiagnostic: TYZPR01MB3920:EE_|KL1PR01MB5299:EE_
X-MS-Office365-Filtering-Correlation-Id: 2a41aa9e-19f7-46d1-b987-08db4ae396bc
X-Microsoft-Antispam: BCL:0;
X-Microsoft-Antispam-Message-Info: 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
X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1
X-MS-Exchange-AntiSpam-MessageData-0: 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
X-OriginatorOrg: outlook.com
X-MS-Exchange-CrossTenant-Network-Message-Id: 2a41aa9e-19f7-46d1-b987-08db4ae396bc
X-MS-Exchange-CrossTenant-AuthSource: TYZPR01MB3920.apcprd01.prod.exchangelabs.com
X-MS-Exchange-CrossTenant-AuthAs: Internal
X-MS-Exchange-CrossTenant-OriginalArrivalTime: 02 May 2023 08:02:35.4770 (UTC)
X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted
X-MS-Exchange-CrossTenant-Id: 84df9e7f-e9f6-40af-b435-aaaaaaaaaaaa
X-MS-Exchange-CrossTenant-RMS-PersistedConsumerOrg: 00000000-0000-0000-0000-000000000000
X-MS-Exchange-Transport-CrossTenantHeadersStamped: KL1PR01MB5299
Received-SPF: pass client-ip=2a01:111:f400:feae::805;
 envelope-from=awrhygty@HIDDEN;
 helo=APC01-PSA-obe.outbound.protection.outlook.com
X-Spam_score_int: -20
X-Spam_score: -2.1
X-Spam_bar: --
X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1,
 DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001,
 SPF_HELO_PASS=-0.001, SPF_PASS=-0.001,
 T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no
X-Spam_action: no action
X-Spam-Score: -1.3 (-)
X-BeenThere: debbugs-submit <at> debbugs.gnu.org
X-Mailman-Version: 2.1.18
Precedence: list
List-Id: <debbugs-submit.debbugs.gnu.org>
List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, 
 <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe>
List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/>
List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org>
List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help>
List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, 
 <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe>
Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org
Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org>
X-Spam-Score: -2.3 (--)


I have a WEBP image with a GRAY ICC profile which can be converted into
PNG format successfully by ImageMagick command,
but with a warning message such like:

  magick convert test.webp test.png
  convert: profile 'icc': 'GRAY': Gray color space not permitted on RGB PNG `test.png' @ warning/png.c/MagickPNGWarningHandler/1748.

When trying to display the image within a emacs buffer,
image-converter takes both standard output and standard error while
converting it into a PNG data, and emacs fails to display the image.

A simple avoiding way is adding -quiet option to converting command.
Ideally, image-converter should split standard error into another buffer.



In GNU Emacs 28.1 (build 2, x86_64-w64-mingw32)
 of 2022-04-22 built on AVALON
Windowing system distributor 'Microsoft Corp.', version 10.0.19045
System Description: Microsoft Windows 10 Pro (v10.0.2009.19045.2846)

Configured using:
 'configure --with-modules --without-dbus --with-native-compilation
 --without-compress-install CFLAGS=-O2'

Configured features:
ACL GIF GMP GNUTLS HARFBUZZ JPEG JSON LCMS2 LIBXML2 MODULES NATIVE_COMP
NOTIFY W32NOTIFY PDUMPER PNG RSVG SOUND THREADS TIFF TOOLKIT_SCROLL_BARS
XPM ZLIB

(NATIVE_COMP present but libgccjit not available)

Important settings:
  value of $LANG: JPN
  locale-coding-system: cp932

Major mode: Lisp Interaction

Minor modes in effect:
  tooltip-mode: t
  global-eldoc-mode: t
  eldoc-mode: t
  show-paren-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  tool-bar-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  indent-tabs-mode: t
  transient-mark-mode: t

Load-path shadows:
None found.

Features:
(shadow sort mail-extr emacsbug message rmc puny dired dired-loaddefs
rfc822 mml mml-sec epa derived epg rfc6068 epg-config gnus-util rmail
rmail-loaddefs auth-source cl-seq eieio eieio-core cl-macs
eieio-loaddefs password-cache json map text-property-search time-date
subr-x seq byte-opt gv bytecomp byte-compile cconv mm-decode mm-bodies
mm-encode mail-parse rfc2231 mailabbrev gmm-utils mailheader cl-loaddefs
cl-lib sendmail rfc2047 rfc2045 ietf-drums mm-util mail-prsvr mail-utils
term/bobcat japan-util iso-transl tooltip eldoc paren electric uniquify
ediff-hook vc-hooks lisp-float-type elisp-mode mwheel dos-w32 ls-lisp
disp-table term/w32-win w32-win w32-vars term/common-win tool-bar dnd
fontset image regexp-opt fringe tabulated-list replace newcomment
text-mode lisp-mode prog-mode register page tab-bar menu-bar rfn-eshadow
isearch easymenu timer select scroll-bar mouse jit-lock font-lock syntax
font-core term/tty-colors frame minibuffer cl-generic cham georgian
utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao korean
japanese eucjp-ms cp51932 hebrew greek romanian slovak czech european
ethiopic indian cyrillic chinese composite emoji-zwj charscript charprop
case-table epa-hook jka-cmpr-hook help simple abbrev obarray
cl-preloaded nadvice button loaddefs faces cus-face macroexp files
window text-properties overlay sha1 md5 base64 format env code-pages
mule custom widget hashtable-print-readable backquote threads w32notify
w32 lcms2 multi-tty make-network-process native-compile emacs)

Memory information:
((conses 16 60143 9906)
 (symbols 48 6718 1)
 (strings 32 20499 1294)
 (string-bytes 1 668035)
 (vectors 16 14770)
 (vector-slots 8 327522 14544)
 (floats 8 23 219)
 (intervals 56 423 5)
 (buffers 992 12))

Message sent:

Content-Disposition: inline
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0
X-Mailer: MIME-tools 5.505 (Entity 5.505)
Content-Type: text/plain; charset=utf-8
X-Loop: help-debbugs@HIDDEN
From: help-debbugs@HIDDEN (GNU bug Tracking System)
To: awrhygty@HIDDEN
Subject: bug#63231: Acknowledgement (28.1; image-converter should remove
 warning messages while conversion)
Message-ID: <handler.63231.B.168301487332570.ack <at> debbugs.gnu.org>
References: <TYZPR01MB3920383866B724A6F9A11C62C36F9@HIDDEN>
X-Gnu-PR-Message: ack 63231
X-Gnu-PR-Package: emacs
Reply-To: 63231 <at> debbugs.gnu.org
Date: Tue, 02 May 2023 08:08:02 +0000

Thank you for filing a new bug report with debbugs.gnu.org.

This is an automatically generated reply to let you know your message
has been received.

Your message is being forwarded to the package maintainers and other
interested parties for their attention; they will reply in due course.

Your message has been sent to the package maintainer(s):
 bug-gnu-emacs@HIDDEN

If you wish to submit further information on this problem, please
send it to 63231 <at> debbugs.gnu.org.

Please do not send mail to help-debbugs@HIDDEN unless you wish
to report a problem with the Bug-tracking system.

--=20
63231: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=3D63231
GNU Bug Tracking System
Contact help-debbugs@HIDDEN with problems

Message sent to bug-gnu-emacs@HIDDEN:

Subject: bug#63231: 28.1; image-converter should remove warning messages while conversion
Resent-From: Eli Zaretskii <eliz@HIDDEN>
Original-Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org>
Resent-CC: bug-gnu-emacs@HIDDEN
Resent-Date: Tue, 02 May 2023 12:07:02 +0000
Resent-Message-ID: <handler.63231.B63231.16830291964048 <at> debbugs.gnu.org>
Resent-Sender: help-debbugs@HIDDEN
To: awrhygty@HIDDEN
Cc: 63231 <at> debbugs.gnu.org
Date: Tue, 02 May 2023 15:07:09 +0300
Message-Id: <838re7ndhu.fsf@HIDDEN>
From: Eli Zaretskii <eliz@HIDDEN>
In-Reply-To: <TYZPR01MB3920383866B724A6F9A11C62C36F9@HIDDEN>
 (awrhygty@HIDDEN)
References: <TYZPR01MB3920383866B724A6F9A11C62C36F9@HIDDEN>
Precedence: list
Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org
Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org>

> From: awrhygty@HIDDEN
> Date: Tue, 02 May 2023 17:02:21 +0900
> 
> 
> I have a WEBP image with a GRAY ICC profile which can be converted into
> PNG format successfully by ImageMagick command,
> but with a warning message such like:
> 
>   magick convert test.webp test.png
>   convert: profile 'icc': 'GRAY': Gray color space not permitted on RGB PNG `test.png' @ warning/png.c/MagickPNGWarningHandler/1748.
> 
> When trying to display the image within a emacs buffer,
> image-converter takes both standard output and standard error while
> converting it into a PNG data, and emacs fails to display the image.
> 
> A simple avoiding way is adding -quiet option to converting command.
> Ideally, image-converter should split standard error into another buffer.

What if the errors are fatal? don't we want to present the user with
the error messages?

Message sent to bug-gnu-emacs@HIDDEN:

Subject: bug#63231: 28.1; image-converter should remove warning messages while conversion
References: <TYZPR01MB3920383866B724A6F9A11C62C36F9@HIDDEN>
Resent-From: awrhygty@HIDDEN
Original-Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org>
Resent-CC: bug-gnu-emacs@HIDDEN
Resent-Date: Tue, 02 May 2023 13:57:02 +0000
Resent-Message-ID: <handler.63231.B63231.168303580419278 <at> debbugs.gnu.org>
Resent-Sender: help-debbugs@HIDDEN
To: Eli Zaretskii <eliz@HIDDEN>
Cc: 63231 <at> debbugs.gnu.org
From: awrhygty@HIDDEN
In-Reply-To: <838re7ndhu.fsf@HIDDEN> (Eli Zaretskii's message of "Tue, 02 May
 2023 08:06:26 -0400")
Date: Tue, 02 May 2023 22:56:28 +0900
Message-ID: <TYZPR01MB39203E40AFF8AA7950D5C352C36F9@HIDDEN>
Content-Type: text/plain
MIME-Version: 1.0
X-MS-Exchange-MessageSentRepresentingType: 1
X-MS-PublicTrafficType: Email
X-MS-TrafficTypeDiagnostic: TYZPR01MB3920:EE_|TYZPR01MB4739:EE_
X-MS-Office365-Filtering-Correlation-Id: ee909da7-e5c9-4b5c-0d4f-08db4b150949
X-Microsoft-Antispam: BCL:0;
X-Microsoft-Antispam-Message-Info: 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
X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1
X-MS-Exchange-AntiSpam-MessageData-0: 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
X-OriginatorOrg: outlook.com
X-MS-Exchange-CrossTenant-Network-Message-Id: ee909da7-e5c9-4b5c-0d4f-08db4b150949
X-MS-Exchange-CrossTenant-AuthSource: TYZPR01MB3920.apcprd01.prod.exchangelabs.com
X-MS-Exchange-CrossTenant-AuthAs: Internal
X-MS-Exchange-CrossTenant-OriginalArrivalTime: 02 May 2023 13:56:33.0482 (UTC)
X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted
X-MS-Exchange-CrossTenant-Id: 84df9e7f-e9f6-40af-b435-aaaaaaaaaaaa
X-MS-Exchange-CrossTenant-RMS-PersistedConsumerOrg: 00000000-0000-0000-0000-000000000000
X-MS-Exchange-Transport-CrossTenantHeadersStamped: TYZPR01MB4739
X-Spam-Score: -0.0 (/)
X-BeenThere: debbugs-submit <at> debbugs.gnu.org
X-Mailman-Version: 2.1.18
Precedence: list
List-Id: <debbugs-submit.debbugs.gnu.org>
List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, 
 <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe>
List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/>
List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org>
List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help>
List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, 
 <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe>
Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org
Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org>
X-Spam-Score: -1.0 (-)

Eli Zaretskii <eliz@HIDDEN> writes:

>> From: awrhygty@HIDDEN
>> Date: Tue, 02 May 2023 17:02:21 +0900
>> 
>> 
>> I have a WEBP image with a GRAY ICC profile which can be converted into
>> PNG format successfully by ImageMagick command,
>> but with a warning message such like:
>> 
>>   magick convert test.webp test.png
>>   convert: profile 'icc': 'GRAY': Gray color space not permitted on
>> RGB PNG `test.png' @ warning/png.c/MagickPNGWarningHandler/1748.
>> 
>> When trying to display the image within a emacs buffer,
>> image-converter takes both standard output and standard error while
>> converting it into a PNG data, and emacs fails to display the image.
>> 
>> A simple avoiding way is adding -quiet option to converting command.
>> Ideally, image-converter should split standard error into another buffer.
>
> What if the errors are fatal? don't we want to present the user with
> the error messages?

If error number is zero, warning message is not so important.
Messaging the warning in echo area will be enough.

Message received at control <at> debbugs.gnu.org:

Received: (at control) by debbugs.gnu.org; 4 Sep 2023 08:31:47 +0000
From debbugs-submit-bounces <at> debbugs.gnu.org Mon Sep 04 04:31:47 2023
Received: from localhost ([127.0.0.1]:48369 helo=debbugs.gnu.org)
	by debbugs.gnu.org with esmtp (Exim 4.84_2)
	(envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>)
	id 1qd4zr-00085y-2o
	for submit <at> debbugs.gnu.org; Mon, 04 Sep 2023 04:31:47 -0400
Received: from mail-lf1-x12f.google.com ([2a00:1450:4864:20::12f]:55777)
 by debbugs.gnu.org with esmtp (Exim 4.84_2)
 (envelope-from <stefankangas@HIDDEN>) id 1qd4zp-00085j-4T
 for control <at> debbugs.gnu.org; Mon, 04 Sep 2023 04:31:45 -0400
Received: by mail-lf1-x12f.google.com with SMTP id
 2adb3069b0e04-500cefc3644so1927813e87.3
 for <control <at> debbugs.gnu.org>; Mon, 04 Sep 2023 01:31:45 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
 d=gmail.com; s=20221208; t=1693816299; x=1694421099; darn=debbugs.gnu.org;
 h=to:subject:message-id:date:mime-version:from:from:to:cc:subject
 :date:message-id:reply-to;
 bh=8DqhEmg7T09CmAFC87xfFZ0JDKBritGKhFNeF9F5dnE=;
 b=oPqY/WtjSLyadVPWFv+Ax8CZCJNjYUdFYHXBC02jaVkxbbTd5I9nIGgNkjAtGvdBOh
 vNc/Iz13rJom6q7XLu+GKz3ujv6LYa8jtiPA+Vag8nbS0tGn+cplfr/fGDC3/MrcT060
 lnqbPpGjd/elZ/lury6IoZbtgskzk0d9pI4PSxZejUOo3yI+7OXaGZvjoB13JXZWU47+
 syXEPnOrYGgbGyuc5n/afVG+xAh87WufpRyf6PzB9C+2CeSI6Jd6uyC26YL2xDFXLGt/
 VZgzwN4LooWfEYySYP1VuErVIkFyv7UQ7o07+BGz1qwm36p9YXX/D5ftbgfKTwb8+Qmk
 FFjQ==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
 d=1e100.net; s=20221208; t=1693816299; x=1694421099;
 h=to:subject:message-id:date:mime-version:from:x-gm-message-state
 :from:to:cc:subject:date:message-id:reply-to;
 bh=8DqhEmg7T09CmAFC87xfFZ0JDKBritGKhFNeF9F5dnE=;
 b=BXH0vKem080KvEh3+aQM7a+FqeKjtESzemz0XpOfpOtbQxjWZyjzhg1Qfb4gNHZkQA
 RGcRduahynovbiYsFZXpVMGrJYsS705j4WByMWVv4ZFng5GQnQhiaUpW/kmExqaGz3Hb
 grKG/jliQjZPmTI17hjAEe9IL1Jt6d0fizYCX6gwlq2qqori9SGR4dOeEAyRYYrzk8UI
 40GKLeYpU+v5/GeIG7rs9JJdbD47lV2zDl8EG8R8bPzvFhkWB5Z3TZNqIbrs8KJfy5mE
 4fOVzhR4+SPPNChHUVA6HI1yznLUMkJVncgpiooIKDDeHrxIBiWfQqaKzTP8kfvNbaap
 HC6g==
X-Gm-Message-State: AOJu0YwdEUpcj/jbljnGnRA7QtkU39KFKPDy77swKdnftf/Glbo2u9K5
 WTrSaSVcadR3IkuNKKzaykpOseOiwow2RRXB2MMb2gSlAoY=
X-Google-Smtp-Source: AGHT+IHxgYn0YgTTRZ3+w8+BLxIMvZ6o20umgqiyuOCd5fOA38eoNqxVX7fuBOb4vKqu2C3h8tWHnWsXXf063yO67xE=
X-Received: by 2002:a05:6512:2114:b0:4fd:d213:dfd4 with SMTP id
 q20-20020a056512211400b004fdd213dfd4mr5654839lfr.20.1693816299417; Mon, 04
 Sep 2023 01:31:39 -0700 (PDT)
Received: from 753933720722 named unknown by gmailapi.google.com with
 HTTPREST; Mon, 4 Sep 2023 01:31:39 -0700
From: Stefan Kangas <stefankangas@HIDDEN>
MIME-Version: 1.0
Date: Mon, 4 Sep 2023 01:31:39 -0700
Message-ID: <CADwFkmk4uAd_tJ-mkZAzhH5PUcfj1c5ZAS9bhU9odW7T4yJx9A@HIDDEN>
Subject: control message for bug #63231
To: control <at> debbugs.gnu.org
Content-Type: text/plain; charset="UTF-8"
X-Spam-Score: 0.0 (/)
X-Debbugs-Envelope-To: control
X-BeenThere: debbugs-submit <at> debbugs.gnu.org
X-Mailman-Version: 2.1.18
Precedence: list
List-Id: <debbugs-submit.debbugs.gnu.org>
List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, 
 <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe>
List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/>
List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org>
List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help>
List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, 
 <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe>
Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org
Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org>
X-Spam-Score: -1.0 (-)

severity 63231 wishlist
quit

Last modified: Mon, 4 Sep 2023 08:45:01 UTC

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997 nCipher Corporation Ltd, 1994-97 Ian Jackson.