[Bug 1850851] Re: [SRU] ubuntu-release-upgrader no longer produces tarballs

[Launchpad Bug Tracker]

** Branch linked: lp:ubuntu-release-upgrader

** Branch linked: lp:~ubuntu-core-dev/ubuntu-release-upgrader/eoan

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https://bugs.launchpad.net/bugs/1850851

Title:
  [SRU] ubuntu-release-upgrader no longer produces tarballs

Status in ubuntu-release-upgrader package in Ubuntu:
  Fix Committed
Status in ubuntu-release-upgrader source package in Eoan:
  New

Bug description:
  [ SRU Justification ]
  ubuntu-release-upgrades was unintentionally relying on a debhelper bug/misfeature where mixing and matching dh(1) and explicit make targets would lead "dh binary" to call a binary-indep target in debian/rules, despite no dependency being declared.  This dh(1) misfeature went away when arch/indep handling was reworked in debhelper 12.5, and ubuntu-release-upgrader's binary-indep target (which generated the release-upgrader tarball) hasn't been called since.

  [ Test Case ]
  1) Make sure the release-upgrader tarball is built, included in .changes, and published to the archive.
  2) debdiff .deb binaries from this upload and the last to ensure nothing else has gone amiss.

  [ Regression Potential ]
  Fairly low.  This is just fixing some broken assumptions about makefiles and debhelper to deterministically return us to the situation we were arriving at by accident before.

  [ Other Info ]
  In doing this, and testing interaction between arch and indep targets and dh(1) itself, I noted that there were a few more small fixes to be made which are no-ops in the current package, but are ticking time-bombs if the package ever grows a non-arch-all package, so I'm including those fixes too.

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