tzdata 2023c-0ubuntu0.22.04.1 might have some inconsistency

this is a new bug as requested in https://bugs.launchpad.net/ubuntu/+source/tzdata/+bug/2017982

Can you document what these zones should use?

here the expected values:
- America/Ensenada->has also dst changes in 2023, 2023-03-12 from UTC-8 to UTC-7
- Atlantic/Jan_Mayen->has a lot of dst changes over the years, f.e. 2023-03-26 from UTC+1 to UTC+2
- Europe/Tiraspol->has also dst changes in 2023, 2023-03-26 from UTC+2 to UTC+3

Wrote attached test case to catch the inconsistencies (patch attached) and forwarded to upstream: https://mm.icann.org/pipermail/tz/2023-May/032937.html

The test_all_timezones_count test case for python-tz needs an update for Ubuntu >= 23.04 (lunar and mantic). python-tz debdiff for lunar attached.

This bug was fixed in the package tzdata - 2023c-4exp1ubuntu1

---------------
tzdata (2023c-4exp1ubuntu1) mantic; urgency=medium

  * Merge with Debian experimental. Remaining changes:
    - Ship 2023c ICU timezone data which are utilized by PHP in tzdata-icu
    - Add autopkgtest test case for ICU timezone data
    - Do not rename NEWS into changelog.gz, this fixes a build failure on
      moment-timezone.js
    - Point Vcs-Browser/Git to Launchpad
    - generate_debconf_templates: Work around AttributeError on icu import

tzdata (2023c-4exp1) experimental; urgency=medium

  * Drop /usr/share/zoneinfo/posix (identical to /usr/share/zoneinfo)
    (LP: #2008076)
  * Split right/* timezones into separate tzdata-legacy package (LP: #2008076)
  * Drop providing tzdata-bookworm from tzdata

tzdata (2023c-4) unstable; urgency=medium

  * Sort timezones naturally in debconf
  * Add explanation for plus/minus used by Etc/GMT timezones
    (Closes: #540305, LP: #1325949)
  * Build tzdata with PACKRATLIST=zone.tab. In combination with
    PACKRATDATA=backzone (which is used since 2022g-3), time zones that differ
    pre-1970 and had been resurrected will not incur changes to data from 1970
    on. This also removes Asia/Hanoi again. (LP: #2017999)
  * Update Croatian debconf translation. Thanks to Tomislav Krznar.

tzdata (2023c-3) unstable; urgency=medium

  * test_timezone_conversions: Print all failures before failing
  * Add Romanian debconf translation. Thanks to Remus-Gabriel Chelu
    (Closes: #1034094)
  * Add Language metadata to all debconf translation files
  * Convert Pacific/Ponape to Pacific/Pohnpei on upgrade
  * Convert Asia/Ujung_Pandang to Asia/Makassar on upgrade
  * Convert Pacific/Truk to Pacific/Chuuk on upgrade
  * Fix or drop wrong translations
  * Check debconf translation files for inconsistencies
  * Fix German translation of Christmas and Easter Island

 -- Benjamin Drung <email address hidden> Wed, 10 May 2023 00:26:05 +0200

Hello Daniel, or anyone else affected,

Accepted python-tz into lunar-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/python-tz/2022.7.1-3ubuntu0.1 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, what testing has been performed on the package and change the tag from verification-needed-lunar to verification-done-lunar. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-lunar. In either case, without details of your testing we will not be able to proceed.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance for helping!

N.B. The updated package will be released to -updates after the bug(s) fixed by this package have been verified and the package has been in -proposed for a minimum of 7 days.

tzdata 2023c-2exp1ubuntu1.1 debdiff for lunar.

tzdata 2023c-0ubuntu0.22.10.2 debdiff for kinetic.

tzdata 2023c-0ubuntu0.22.04.2 debdiff for jammy.

tzdata 2023c-0ubuntu0.20.04.2 debdiff for focal.

All autopkgtests for the newly accepted python-tz (2022.7.1-3ubuntu0.1) for lunar have finished running.
The following regressions have been reported in tests triggered by the package:

cinder/2:22.0.0-0ubuntu1.1 (armhf)
ironic/1:21.4.0-0ubuntu1 (armhf)
python-caldav/0.11.0-1 (arm64)
senlin/1:15.0.0-0ubuntu1 (armhf)

Please visit the excuses page listed below and investigate the failures, proceeding afterwards as per the StableReleaseUpdates policy regarding autopkgtest regressions [1].

https://people.canonical.com/~ubuntu-archive/proposed-migration/lunar/update_excuses.html#python-tz

[1] https://wiki.ubuntu.com/StableReleaseUpdates#Autopkgtest_Regressions

Thank you!

This upload proposes to remove some of the options in debian/tzdata.templates. So what happens if a user has configured deployment automation to use particular debconf options that will now disappear? The changelog says "It removes following time zones from debconf and updates them on upgrades again" but what about the reproducibility of previous behaviour on redeployments?

This would apply to:

America/
  Argentina/ComodRivadavia
  Rosario
Asia/
  Hanoi
Europe/
  Uzhgorod
  Zaporozhye
Pacific/
  Enderbury

Thanks for the review. I tested what happens if a debconf answer is provided that will be removed by the update:

```
$ printf "tzdata tzdata/Areas select Europe\ntzdata tzdata/Zones/Europe select Uzhgorod\n" | debconf-set-selections
$ DEBIAN_FRONTEND=noninteractive apt install ./tzdata_2023c-0ubuntu0.20.04.2_all.deb
[...]
Current default time zone: 'Europe/Amsterdam'
```

So it will select the first entry of that area instead. So we need to keep all debconf options. I'll prepare a new set of debdiffs.

Hello Daniel, or anyone else affected,

Accepted tzdata into lunar-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/tzdata/2023c-2exp1ubuntu1.1 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, what testing has been performed on the package and change the tag from verification-needed-lunar to verification-done-lunar. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-lunar. In either case, without details of your testing we will not be able to proceed.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance for helping!

N.B. The updated package will be released to -updates after the bug(s) fixed by this package have been verified and the package has been in -proposed for a minimum of 7 days.

An upload of tzdata to jammy-proposed has been rejected from the upload queue for the following reason: "missing the fix for debconf preseed handling".

An upload of tzdata to kinetic-proposed has been rejected from the upload queue for the following reason: "missing the fix for debconf preseed handling".

Hello Daniel, or anyone else affected,

Accepted tzdata into kinetic-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/tzdata/2023c-0ubuntu0.22.10.2 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, what testing has been performed on the package and change the tag from verification-needed-kinetic to verification-done-kinetic. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-kinetic. In either case, without details of your testing we will not be able to proceed.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance for helping!

N.B. The updated package will be released to -updates after the bug(s) fixed by this package have been verified and the package has been in -proposed for a minimum of 7 days.

Hello Daniel, or anyone else affected,

Accepted tzdata into jammy-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/tzdata/2023c-0ubuntu0.22.04.2 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, what testing has been performed on the package and change the tag from verification-needed-jammy to verification-done-jammy. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-jammy. In either case, without details of your testing we will not be able to proceed.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance for helping!

N.B. The updated package will be released to -updates after the bug(s) fixed by this package have been verified and the package has been in -proposed for a minimum of 7 days.

Hello Daniel, or anyone else affected,

Accepted tzdata into focal-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/tzdata/2023c-0ubuntu0.20.04.2 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, what testing has been performed on the package and change the tag from verification-needed-focal to verification-done-focal. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-focal. In either case, without details of your testing we will not be able to proceed.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance for helping!

N.B. The updated package will be released to -updates after the bug(s) fixed by this package have been verified and the package has been in -proposed for a minimum of 7 days.

All autopkgtests for the newly accepted tzdata (2023c-2exp1ubuntu1.1) for lunar have finished running.
The following regressions have been reported in tests triggered by the package:

chrony/4.3-1ubuntu4 (armhf)
python-tz/2022.7.1-3 (amd64, arm64, armhf, ppc64el, s390x)

Please visit the excuses page listed below and investigate the failures, proceeding afterwards as per the StableReleaseUpdates policy regarding autopkgtest regressions [1].

https://people.canonical.com/~ubuntu-archive/proposed-migration/lunar/update_excuses.html#tzdata

[1] https://wiki.ubuntu.com/StableReleaseUpdates#Autopkgtest_Regressions

Thank you!

All autopkgtests for the newly accepted tzdata (2023c-0ubuntu0.20.04.2) for focal have finished running.
The following regressions have been reported in tests triggered by the package:

postgresql-12/12.14-0ubuntu0.20.04.1 (amd64)

Please visit the excuses page listed below and investigate the failures, proceeding afterwards as per the StableReleaseUpdates policy regarding autopkgtest regressions [1].

https://people.canonical.com/~ubuntu-archive/proposed-migration/focal/update_excuses.html#tzdata

[1] https://wiki.ubuntu.com/StableReleaseUpdates#Autopkgtest_Regressions

Thank you!

Verified lunar SRU: The autopkgtest runs for 2023c-2exp1ubuntu1.1 succeeded. The manual test were successful as well:

```
$ schroot-wrapper -p tzdata -e -c lunar
(lunar)bdrung@host:~$ TZ=America/Ensenada date -d "2023-04-28 13:49 Z"
Fri Apr 28 06:49:00 PDT 2023
(lunar)bdrung@host:~$ TZ=Atlantic/Jan_Mayen date -d "2023-04-28 13:49 Z"
Fri Apr 28 15:49:00 CEST 2023
(lunar)bdrung@host:~$ TZ=Europe/Tiraspol date -d "2023-04-28 13:49 Z"
Fri Apr 28 16:49:00 EEST 2023
(lunar)bdrung@host:~$ dpkg -s tzdata | grep Version
Version: 2023c-2exp1ubuntu1.1
```

Verified kinetic SRU: The autopkgtest runs for 2023c-0ubuntu0.22.10.2 succeeded. The manual test were successful as well:

```
$ schroot-wrapper -p tzdata -e -c kinetic
(kinetic)bdrung@host:~$ dpkg -s tzdata | grep Version
Version: 2023c-0ubuntu0.22.10.2
(kinetic)bdrung@host:~$ TZ=America/Ensenada date -d "2023-04-28 13:49 Z"
Fri Apr 28 06:49:00 PDT 2023
(kinetic)bdrung@host:~$ TZ=Atlantic/Jan_Mayen date -d "2023-04-28 13:49 Z"
Fri Apr 28 15:49:00 CEST 2023
(kinetic)bdrung@host:~$ TZ=Europe/Tiraspol date -d "2023-04-28 13:49 Z"
Fri Apr 28 16:49:00 EEST 2023
```

Verified jammy SRU: The autopkgtest runs for 2023c-0ubuntu0.22.04.2 succeeded. The manual test were successful as well:

```
$ schroot-wrapper -p tzdata -e -c jammy
(jammy)bdrung@host:~$ dpkg -s tzdata | grep Version
Version: 2023c-0ubuntu0.22.04.2
(jammy)bdrung@host:~$ TZ=America/Ensenada date -d "2023-04-28 13:49 Z"
Fri Apr 28 06:49:00 PDT 2023
(jammy)bdrung@host:~$ TZ=Atlantic/Jan_Mayen date -d "2023-04-28 13:49 Z"
Fri Apr 28 15:49:00 CEST 2023
(jammy)bdrung@host:~$ TZ=Europe/Tiraspol date -d "2023-04-28 13:49 Z"
Fri Apr 28 16:49:00 EEST 2023
```

Verified focal SRU: The autopkgtest runs for 2023c-0ubuntu0.20.04.2 succeeded. The manual test were successful as well:

```
$ schroot-wrapper -p tzdata -e -c focal
(focal)bdrung@host:~$ dpkg -s tzdata | grep Version
Version: 2023c-0ubuntu0.20.04.2
(focal)bdrung@host:~$ TZ=America/Ensenada date -d "2023-04-28 13:49 Z"
Fri Apr 28 06:49:00 PDT 2023
(focal)bdrung@host:~$ TZ=Atlantic/Jan_Mayen date -d "2023-04-28 13:49 Z"
Fri Apr 28 15:49:00 CEST 2023
(focal)bdrung@host:~$ TZ=Europe/Tiraspol date -d "2023-04-28 13:49 Z"
Fri Apr 28 16:49:00 EEST 2023
```

Regarding the failing autopkgtest:

* python-tz on lunar:
  - cinder/2:22.0.0-0ubuntu1.1, ironic/1:21.4.0-0ubuntu1, and senlin/1:15.0.0-0ubuntu1 fail on armhf due to an installation issue of mysql (probably bug #1980466)
  - python-caldav/0.11.0-1 on armhf: not investigated yet
* tzdata on focal:
  - postgresql-12/12.14-0ubuntu0.20.04.1 on amd64: not investigated yet
* tzdata on lunar:
  - chrony/4.3-1ubuntu4 on armhf: Flaky test case (see bug #2002910)
  - python-tz/2022.7.1-3: fixed by python-tz/2022.7.1-3ubuntu0.1

Looking at the autopkgtest, several of the failing ones got resolved (e.g. all for python-tz on lunar). Remaining failing ones:

* tzdata on lunar:
  - chrony/4.3-1ubuntu4 on armhf: Flaky test case (see bug #2002910)
* tzdata on focal:
  - postgresql-12/12.14-0ubuntu0.20.04.1 on amd64: test 8 of 180_ecpg.t

I saw nothing specific to tzdata in 180_ecpg.t. I tried 180_ecpg.t from postgresql-12 locally and it succeeded. Then I retried the autopkgtest and it succeeded as well. So all autopkgtest issues are resolved now.

This bug was fixed in the package tzdata - 2023c-2exp1ubuntu1.1

---------------
tzdata (2023c-2exp1ubuntu1.1) lunar; urgency=medium

  * Build tzdata with PACKRATLIST=zone.tab. In combination with
    PACKRATDATA=backzone (which is used since 2022g-3), time zones that differ
    pre-1970 and had been resurrected will not incur changes to data from 1970
    on. (LP: #2017999) This also removes Asia/Hanoi again.
  * Add an autopkgtest test case for post-1970 symlink consistency
  * Update debconf template and translations

 -- Benjamin Drung <email address hidden> Fri, 19 May 2023 12:05:31 +0200

The verification of the Stable Release Update for tzdata has completed successfully and the package is now being released to -updates. Subsequently, the Ubuntu Stable Release Updates Team is being unsubscribed and will not receive messages about this bug report. In the event that you encounter a regression using the package from -updates please report a new bug using ubuntu-bug and tag the bug report regression-update so we can easily find any regressions.

This bug was fixed in the package tzdata - 2023c-0ubuntu0.22.10.2

---------------
tzdata (2023c-0ubuntu0.22.10.2) kinetic; urgency=medium

  * Build tzdata with PACKRATLIST=zone.tab. In combination with
    PACKRATDATA=backzone (which is used since 2023c-0ubuntu0.22.10.1), time
    zones that differ pre-1970 and had been resurrected will not incur changes
    to data from 1970 on. This also removes Asia/Hanoi again. Upgrade
    Pacific/Enderbury to Pacific/Kanton again. (LP: #2017999)
  * Add an autopkgtest test case for post-1970 symlink consistency
  * Update debconf template and translations

 -- Benjamin Drung <email address hidden> Sat, 20 May 2023 01:17:08 +0200

This bug was fixed in the package tzdata - 2023c-0ubuntu0.22.04.2

---------------
tzdata (2023c-0ubuntu0.22.04.2) jammy; urgency=medium

  * Build tzdata with PACKRATLIST=zone.tab. In combination with
    PACKRATDATA=backzone (which is used since 2023c-0ubuntu0.22.04.1), time
    zones that differ pre-1970 and had been resurrected will not incur changes
    to data from 1970 on. This also removes Asia/Hanoi again. Upgrade
    Pacific/Enderbury to Pacific/Kanton again. (LP: #2017999)
  * Add an autopkgtest test case for post-1970 symlink consistency
  * Update debconf template and translations

 -- Benjamin Drung <email address hidden> Sat, 20 May 2023 01:26:56 +0200

This bug was fixed in the package tzdata - 2023c-0ubuntu0.20.04.2

---------------
tzdata (2023c-0ubuntu0.20.04.2) focal; urgency=medium

  * Build tzdata with PACKRATLIST=zone.tab. In combination with
    PACKRATDATA=backzone (which is used since 2023c-0ubuntu0.20.04.1), time
    zones that differ pre-1970 and had been resurrected will not incur changes
    to data from 1970 on. This also removes Asia/Hanoi again. (LP: #2017999)
  * Add an autopkgtest test case for post-1970 symlink consistency
  * Update debconf template and translations

 -- Benjamin Drung <email address hidden> Sat, 20 May 2023 01:32:19 +0200

Given that python-tz is just a test update I think we should leave that in -proposed and tag this bug block-proposed-lunar.