Bug 1101251

Current upstream version is 1.74. The changes since 1.69 are:

1.74    2014-08-30

- This release is based on version 2014g of the Olson database. This release
  includes contemporary changes for Turks & Caicos.

- Fixed a bug when trying to get the local timezone by looking at
  /etc/sysconfig/clock. Patch by Alexey Molchanov. GitHub PR #2.


1.73    2014-08-06

- This release is based on version 2014f of the Olson database. This release
  includes contemporary changes for Russia and Australia.


1.72    2014-08-03

- Added support for getting the local time zone on Android. Patch from Brian
  Fraser. RT #97711.

- The primary repo for this distro is now on GitHub.


1.71    2014-06-21

- This release is based on version 2014e of the Olson database. This release
  includes contemporary changes for Egypt and Morocco.


1.70    2014-06-01

- Unset $ENV{TZ} in the t/04local.t test to avoid interference from
  the system. Reported by Mark Gardner. RT #96083.

- This release is based on version 2014d of the IANA database, but there are
  no data changes from 2014c.


The 1.74 breaks perl-DateTime tests. There is a simple fix for the perl-DateTime <http://pkgs.fedoraproject.org/cgit/perl-DateTime.git/commit/?h=f20&id=7a22f1f6770a1b0efa703fbbec433bb9a61e7566>.

The 1.71 version requires a new Perl module List::AllUtils.

(In reply to Petr Pisar from comment #2)
> The 1.71 version requires a new Perl module List::AllUtils.

Which would require rebasing perl-Scalar-List-Utils and a new perl-Test-Warnings package.

It's getting complicated.

We will see if we can update time zone data only without touch the library and tests.

Due to dependencies there will be no rebase of this package. We will try to update the time zone database only without touching the code.

Created attachment 1296137 [details]
Source repository patch on top of bug #1241818

This dist-git patch on top of 1.64 rebase (bug #1241818) rebases to 1.70 and then adds 2017b tzdata sources and regenerates the Perl code from them.

Created attachment 1296212 [details]
Source repository patch on top of bug #1241818

This adds a correction for parsing short time zones with signs that exists in Africa/Accra since 2017a time zone data.

How to test:

(1) Use DateTime Perl object with time and time zone whose rules changed after releasing 2013h Olson database (bundled within the old perl-DateTime-TimeZone-1.63-2.el7 package) and before relasing 2017b Olson database (provided within the new perl-DateTime-TimeZone-1.70-1.el7 package). E.g. this command:

  $ perl -e 'use DateTime; my $d=DateTime->new(year=>2015,month=>5,day=>1,hour=>0,minute=>0,second=>0,time_zone=>q{UTC}); $d->set_time_zone(q{Asia/Ulaanbaatar}); print $d->strftime(q{%FT%T%z}), qq{\n}'

Before:
  2015-05-01T08:00:00+0800
After:
  2015-05-01T09:00:00+0900

(2) You can compare it with date(1) output that uses database from tzdata package:

  $ TZ=Asia/Ulaanbaatar date --date '2015-05-01T00:00:00+0000' '+%FT%T%z'
  2015-05-01T09:00:00+0900

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2018:0664