GNU bug report logs - #33277
25.1; icalendar-import-file incorrectly imports events with same start/end time

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

From: Stefan van der Walt <stefanv <at> berkeley.edu>
To: bug-gnu-emacs <at> gnu.org
Subject: 25.1;
 icalendar-import-file incorrectly imports events with same start/end
 time
Date: Mon, 05 Nov 2018 10:25:48 -0800

When importing an ical file containing an event with the same start and
end time, that event is converted to an all-day event.

E.g., consider the following Google calendar file, basic.ics:

BEGIN:VCALENDAR
PRODID:-//Google Inc//Google Calendar 70.9054//EN
VERSION:2.0
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-WR-CALNAME:emacs-ical-import-test
X-WR-TIMEZONE:America/Los_Angeles
BEGIN:VEVENT
DTSTART:20181105T200000Z
DTSTAMP:20181105T181652Z
UID:2l3t5namf0kumhmudrbgj3vfjq <at> google.com
CREATED:20181105T181646Z
DESCRIPTION:
LAST-MODIFIED:20181105T181646Z
LOCATION:
SEQUENCE:0
STATUS:CONFIRMED
SUMMARY:event with same start/end time
TRANSP:OPAQUE
END:VEVENT
END:VCALENDAR

I import it using:

(icalendar-import-file "/tmp/basic.ics" "/tmp/basic.diary")

And in basic.diary see:

11/5/2018 event with same start/end time

Instead of:

11/5/2018 12:00-12:00

The source code (icalendar.el) mentions the following:

;;   Please note:
;; - Diary entries which have a start time but no end time are assumed to
;;   last for one hour when they are exported.

Still, then I would expect the diary entry to be:

11/5/2018 12:00-13:00



System information:

In GNU Emacs 25.1.1 (x86_64-pc-linux-gnu, GTK+ Version 3.22.11)
 of 2017-09-14, modified by Debian built on trouble
Windowing system distributor 'The X.Org Foundation', version 11.0.12001000
System Description:	Debian GNU/Linux unstable (sid)

Configured using:
 'configure --build x86_64-linux-gnu --prefix=/usr
 --sharedstatedir=/var/lib --libexecdir=/usr/lib
 --localstatedir=/var/lib --infodir=/usr/share/info
 --mandir=/usr/share/man --with-pop=yes
 --enable-locallisppath=/etc/emacs25:/etc/emacs:/usr/local/share/emacs/25.1/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/25.1/site-lisp:/usr/share/emacs/site-lisp
 --with-sound=alsa --build x86_64-linux-gnu --prefix=/usr
 --sharedstatedir=/var/lib --libexecdir=/usr/lib
 --localstatedir=/var/lib --infodir=/usr/share/info
 --mandir=/usr/share/man --with-pop=yes
 --enable-locallisppath=/etc/emacs25:/etc/emacs:/usr/local/share/emacs/25.1/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/25.1/site-lisp:/usr/share/emacs/site-lisp
 --with-sound=alsa --with-x=yes --with-x-toolkit=gtk3
 --with-toolkit-scroll-bars 'CFLAGS=-g -O2
 -fdebug-prefix-map=/build/emacs25-wN2qS3/emacs25-25.1+1=. -fstack-protector-strong
 -Wformat -Werror=format-security -Wall' 'CPPFLAGS=-Wdate-time
 -D_FORTIFY_SOURCE=2' LDFLAGS=-Wl,-z,relro'

Configured features:
XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GPM DBUS GCONF GSETTINGS
NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT LIBOTF XFT ZLIB
TOOLKIT_SCROLL_BARS GTK3 X11

Important settings:
  value of $LANG: en_US.UTF-8
  locale-coding-system: utf-8-unix

Major mode: Diary

Minor modes in effect:
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  global-company-mode: t
  company-mode: t
  pyvenv-mode: t
  diff-auto-refine-mode: t
  global-auto-revert-mode: t
  delete-selection-mode: t
  global-whitespace-mode: t
  winner-mode: t
  show-paren-mode: t
  xclip-mode: t
  pdf-occur-global-minor-mode: t
  shell-dirtrack-mode: t
  override-global-mode: t
  display-time-mode: t
  tooltip-mode: t
  global-eldoc-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent messages:
Quit [2 times]

ido-read-internal: Command attempted to use minibuffer while in minibuffer
Quit
Making completion list...
user-error: End of history; no default available
Quit
Mark saved where search started
Quit
Making completion list...

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Features:
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Message #8 received at 33277 <at> debbugs.gnu.org (full text, mbox):

From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: Stefan van der Walt <stefanv <at> berkeley.edu>
Cc: 33277 <at> debbugs.gnu.org
Subject: Re: bug#33277: 25.1; icalendar-import-file incorrectly imports
 events with same start/end time
Date: Wed, 10 Jul 2019 15:10:04 +0200

Stefan van der Walt <stefanv <at> berkeley.edu> writes:

> When importing an ical file containing an event with the same start and
> end time, that event is converted to an all-day event.

[...]

> I import it using:
>
> (icalendar-import-file "/tmp/basic.ics" "/tmp/basic.diary")
>
> And in basic.diary see:
>
> 11/5/2018 event with same start/end time

But is that the same as an all-day event?

> Instead of:
>
> 11/5/2018 12:00-12:00

Yes, that would be more logical...

> The source code (icalendar.el) mentions the following:
>
> ;;   Please note:
> ;; - Diary entries which have a start time but no end time are assumed to
> ;;   last for one hour when they are exported.
>
> Still, then I would expect the diary entry to be:
>
> 11/5/2018 12:00-13:00

This seems to all be very inconsistent.  I rarely use diary myself, but
what would users expect here?  Exporting the event with 12:00-12:00
would be consistent, at least.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

Message #11 received at 33277 <at> debbugs.gnu.org (full text, mbox):

From: Ulf Jasper <ulf.jasper <at> web.de>
To: Lars Ingebrigtsen <larsi <at> gnus.org>
Cc: 33277 <at> debbugs.gnu.org, Stefan van der Walt <stefanv <at> berkeley.edu>
Subject: Re: bug#33277: 25.1;
 icalendar-import-file incorrectly imports events with same start/end
 time
Date: Thu, 05 Sep 2019 21:32:04 +0200

Am 10.07.2019 um 15:10 (+0200) schrieb Lars Ingebrigtsen:
> Stefan van der Walt <stefanv <at> berkeley.edu> writes:
>
>> When importing an ical file containing an event with the same start and
>> end time, that event is converted to an all-day event.
>
> [...]
>
>> I import it using:
>>
>> (icalendar-import-file "/tmp/basic.ics" "/tmp/basic.diary")
>>
>> And in basic.diary see:
>>
>> 11/5/2018 event with same start/end time
>
> But is that the same as an all-day event?
>
>> Instead of:
>>
>> 11/5/2018 12:00-12:00
>
> Yes, that would be more logical...
>
>> The source code (icalendar.el) mentions the following:
>>
>> ;;   Please note:
>> ;; - Diary entries which have a start time but no end time are assumed to
>> ;;   last for one hour when they are exported.
>>
>> Still, then I would expect the diary entry to be:
>>
>> 11/5/2018 12:00-13:00

This note is about export, i.e. diary to ical.

>
> This seems to all be very inconsistent.  I rarely use diary myself, but
> what would users expect here?  Exporting the event with 12:00-12:00
> would be consistent, at least.

I'll have a look.

Message #14 received at 33277 <at> debbugs.gnu.org (full text, mbox):

From: Ulf Jasper <ulf.jasper <at> web.de>
To: Lars Ingebrigtsen <larsi <at> gnus.org>, 33277 <at> debbugs.gnu.org,
 Stefan van der Walt <stefanv <at> berkeley.edu>
Subject: Re: bug#33277: 25.1;
 icalendar-import-file incorrectly imports events with same start/end
 time
Date: Mon, 09 Sep 2019 18:57:42 +0200

Fixed on branch master.

If the end date is missing from an ical event, the imported diary entry
will now correctly show date and time of the start date.

The result should now look like this:

   11/5/2018 20:00 event with same start/end time

(Actual time depends on timezone settings.)

Message #17 received at 33277 <at> debbugs.gnu.org (full text, mbox):

From: "Stefan van der Walt" <stefanv <at> berkeley.edu>
To: "Ulf Jasper" <ulf.jasper <at> web.de>, "Lars Ingebrigtsen" <larsi <at> gnus.org>,
 33277 <at> debbugs.gnu.org
Subject: Re: bug#33277: 25.1;
  icalendar-import-file incorrectly imports events with same start/end time
Date: Mon, 09 Sep 2019 10:09:04 -0700

Thank you very much, Ulf.

Message #22 received at 33277-done <at> debbugs.gnu.org (full text, mbox):

From: Ulf Jasper <ulf.jasper <at> web.de>
To: 33277-done <at> debbugs.gnu.org
Subject: bug#33277: 25.1;
 icalendar-import-file incorrectly imports events with same start/end
 time
Date: Mon, 09 Sep 2019 19:09:20 +0200

Done.

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