[Bug 1464950] Re: output flushing error causing ugly output for autoremove

[David Kalnischkies]

Yeah, relatively recent in its very visible form, but a relatively old problem in its cause.
Fixed in upstream git for a while, but thanks to diverting branches (abi-breakfree unstable and abi-breaking experimental) it hasn't reached a (non-experimental) release yet:
http://anonscm.debian.org/cgit/apt/apt.git/commit/?id=2a884c612b10b27f4be2cc6dd689bfe448d9361a

It is written as an abi break, but could be rewritten to not require one
with some care (at least binary compatible, technically source
compatibility breaks and theoretically its still a behavior change). I
just decided against it at the time it was clear we would have to keep
the diversion a little longer than originally planed and backported just
the "absolutely needed" stuff. We could do it now, but I guess the time
is better spent in stopping to semi-maintain two branches. Hence setting
"fix commited" in anticipation of "fix released" soon [all while
realizing that I might very well be the biggest blocker in this process
with my perfectionism]

** Changed in: apt (Ubuntu)
       Status: New => Fix Committed

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https://bugs.launchpad.net/bugs/1464950

Title:
  output flushing error causing ugly output for autoremove

Status in apt package in Ubuntu:
  Fix Committed

Bug description:
  When I do a dist-upgrade, I get the following output:

  Reading package lists... Done
  Building dependency tree       
  Reading state information... Done
  Calculating upgrade... The following packages were automatically installed and are no longer required:
    libboost-thread1.55.0 librados2 librbd1 linux-headers-3.19.0-18 linux-headers-3.19.0-18-generic
    linux-image-3.19.0-18-generic linux-image-extra-3.19.0-18-generic
    linux-signed-image-3.19.0-18-generic
  Use 'apt-get autoremove' to remove them.
  Done
  The following packages will be upgraded:
  [...]

  I assume it should look like this:

  Reading package lists... Done
  Building dependency tree       
  Reading state information... Done
  Calculating upgrade... Done
  The following packages were automatically installed and are no longer required:
    libboost-thread1.55.0 librados2 librbd1 linux-headers-3.19.0-18 linux-headers-3.19.0-18-generic
    linux-image-3.19.0-18-generic linux-image-extra-3.19.0-18-generic
    linux-signed-image-3.19.0-18-generic
  Use 'apt-get autoremove' to remove them.
  The following packages will be upgraded:
  [...]

  This is a fairly recent regression, I think, though I haven't tested
  vivid to see if I'm right, I don't recall it overflowing that line
  before.

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