[Bug 1888749] Re: sup-mail broken and unusable after Bionic to Focal upgrade

Wed Jul 29 20:26:02 UTC 2020

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Title:
  sup-mail broken and unusable after Bionic to Focal upgrade

Status in sup-mail package in Ubuntu:
  In Progress

Bug description:
  [Impact]

  A user with the "sup-mail" package installed on Bionic (or Eoan) who
  upgrades to Focal will find that "sup-mail" becomes completely
  unusable after upgrading to Focal, i.e., immediately crashes at run-
  time.

  This is because sup-mail is not packaged in Focal, and sup-mail 0.22.1
  (version packaged in Bionic and Eoan) is not compatible with Ruby 2.7,
  the new system Ruby version in Focal.

  sup-mail is fixed and packaged in Groovy, so SRU fix would be to
  similarly package sup-mail in Focal.

  [Test Case]

  The sup-mail package is not currently packaged in Focal.

  So to simulate a Bionic to Focal upgrade, install the Bionic sup-mail
  package manually on Focal, and observe that sup-mail is unusable
  because it will immediately crash at runtime:

  $ wget http://de.archive.ubuntu.com/ubuntu/pool/universe/s/sup-mail/sup-mail_0.22.1-2_all.deb
  $ sudo dpkg -i ./sup-mail_0.22.1-2_all.deb
  $ sudo apt -f install
  $ sup-mail

  Crashes immediately with an error like:
  --- ArgumentError from thread: main
  wrong number of arguments (given 2, expected 1)
  /usr/lib/ruby/vendor_ruby/sup/logger.rb:74:in `block (2 levels) in <module:LogsStuff>'

  To resolve: install fixed sup-mail package version 1.0-3 on Focal
  (e.g., from Groovy). Observe that there is now no crash on Focal after
  launching "sup-mail".

  [Regression Potential]

  Very low. The "sup-mail" package is currently not packaged for Focal,
  and is completely unusable after upgrading from Bionic (or Eoan) to
  Focal: a 100% repeatable immediate crash at runtime when running on
  Focal. Because sup-mail is currently broken and unusable after
  upgrading to Focal, no greater regression is possible.

  "sup-mail" is a leaf package, i.e., no other packages depend on on it.
  So introducing a working version of sup-mail as a new package into
  Focal would be very low risk to break any other package.

  Care will be required in choosing a version string for Focal, to
  ensure that it is no greater than the version string used in Groovy,
  in order to avoid future upgrade issues to Groovy.

  [Other Info]

  - I believe that introducing sup-mail into Focal would be in scope as
  a SRU, due to a low potential for regressing existing installations
  but a high potential for improving the user experience. Based on
  criteria as documented for SRU "Other safe cases":
  <https://wiki.ubuntu.com/StableReleaseUpdates#Other_safe_cases>

  - I am willing to commit to ensuring that sup-mail is well-maintained
  in Ubuntu in future, and have subscribed myself to be notified of all
  new sup-mail Ubuntu bugs.

  - Upstream now also has new maintainers (project & Debian package):

  (1) Upstream project now has two new maintainers: see
  <https://github.com/sup-heliotrope/sup>. Two long-term users of Sup
  have now taken over the maintenance of the upstream project, after
  seeing the lack of Ruby 2.7 support previously. I am one of the new
  upstream co-maintainers <https://github.com/IPv2> and have been a
  long-term continuous Sup user (10+ years). The other new upstream co-
  maintainer is <https://github.com/danc86>, also a long-term user, and
  who for three years has separately been one of the downstream Fedora
  maintainers (<https://src.fedoraproject.org/user/dcallagh> for Fedora
  package "rpms/rubygem-sup"). We are actively maintaining upstream, and
  we released the new version 1.0 (with Ruby 2.7 support).

  (2) Upstream Debian package maintained by the Debian Ruby Team now has
  two new named uploaders: see <https://packages.debian.org/sid/sup-
  mail>. I am one of the new named uploaders. Although I am new to
  Debian maintenance, the other maintainer is Utkarsh Gupta, who is an
  experienced Debian Developer.

  - "sup-mail" is packaged in Bionic, Eoan, and Groovy - but not in
  Focal. This is because upstream sup-mail 0.22.1-3 was removed from
  Debian unstable on 2020-04-07 due to FTBFS with lack of Ruby 2.7
  support. Then a new fixed version of sup-mail 1.0-2 was reintroduced
  to Debian Unstable on 2020-07-22, then sup-mail 1.0-3 to Debian
  Testing on 2020-07-27. sup-mail was therefore not in Debian at the
  time of Focal's Debian Import Freeze.

  - Upstream Debian bug for crash on Ruby 2.7 is now resolved with the
  new sup-mail release. <https://bugs.debian.org/952089>

  - I have also resolved a long-standing minor Debian packaging bug with
  sup-mail 1.0-3: <https://bugs.launchpad.net/bugs/1594226> (forwarded
  downstream to Debian BTS as <https://bugs.debian.org/966154>).

  - Raised as SRU, following IRC discussion on 2020-07-23 in #ubuntu-
  devel with ~lucaskanashiro (IRC nick kanashiro) and ~racb (IRC nick
  rbasak, part of SRU team). After my commitment to keep sup-mail well-
  maintained in Ubuntu in future, both are provisionally supportive of
  SRU to Focal, subject to discussion with the wider SRU Team. IRC logs:
  https://irclogs.ubuntu.com/2020/07/23/%23ubuntu-devel.txt (A big thank
  you again, ~lucaskanashiro and ~racb!)

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