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[Launchpad Bug Tracker <1599646@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package unattended-upgrades -
1.5ubuntu3.18.10.2

---------------
unattended-upgrades (1.5ubuntu3.18.10.2) cosmic; urgency=medium

  * Clear cache when autoremoval fails (LP: #1779157)
  * Find autoremovable kernel packages using the patterns in APT's way
    (LP: #1815494)
  * Filter out progress indicator from dpkg log (LP: #1599646)

 -- Balint Reczey <rbalint@xxxxxxxxxx>  Thu, 21 Feb 2019 15:10:13 +0100

** Changed in: unattended-upgrades (Ubuntu Cosmic)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1599646

Title:
  E-mail report contains repeated "Reading database ... NN%" lines

Status in unattended-upgrades package in Ubuntu:
  Fix Released
Status in unattended-upgrades source package in Xenial:
  Fix Committed
Status in unattended-upgrades source package in Bionic:
  Fix Committed
Status in unattended-upgrades source package in Cosmic:
  Fix Released
Status in apt package in Debian:
  New

Bug description:
  [Impact]

   * Unattended-upgrades sends the following repeating dpkg progress lines with almost no informational value in the email report:
  ...
   (Reading database ...
   (Reading database ... 5%
   (Reading database ... 10%
   (Reading database ... 15%
   (Reading database ... 20%
   (Reading database ... 25%
   (Reading database ... 30%
   (Reading database ... 35%
   (Reading database ... 40%
   (Reading database ... 45%
   (Reading database ... 50%
   (Reading database ... 55%
   (Reading database ... 60%
   (Reading database ... 65%
   (Reading database ... 70%
   (Reading database ... 75%
   (Reading database ... 80%
   (Reading database ... 85%
   (Reading database ... 90%
   (Reading database ... 95%
  (Reading database ... 60486 files and directories currently installed.)
  ...

   * This makes the report email too verbose and makes harder to spot
  real problems.

  [Test Case]

   * Run package autopkgtest and observe no such lines in the echoed
  email in upgrade-all-security and upgrade-between-snapshots tests.

  [Regression Potential]

   * The fix filters dpkg's output only and in the worst case other
  lines could be missing or u-u could crash. Since the applied hard-
  coded regex pattern is fairly simple and we observed no crashes in the
  tests those regressions are unlikey to occur.

  [Originial Bug Text]

  This concerns unattended-upgrades 0.90 in Xenial.

  Here is an excerpt from an e-mail report sent out by u-u after the
  upgrade process is completed:

   Package installation log:
   Log started: 2016-07-06  17:24:21
   Preconfiguring packages ...
   (Reading database ...
   (Reading database ... 5%
   (Reading database ... 10%
   (Reading database ... 15%
   (Reading database ... 20%
   (Reading database ... 25%
   (Reading database ... 30%
   (Reading database ... 35%
   (Reading database ... 40%
   (Reading database ... 45%
   (Reading database ... 50%
   (Reading database ... 55%
   (Reading database ... 60%
   (Reading database ... 65%
   (Reading database ... 70%
   (Reading database ... 75%
   (Reading database ... 80%
   (Reading database ... 85%
   (Reading database ... 90%
   (Reading database ... 95%
   (Reading database ... 100%
   (Reading database ... 314949 files and directories currently installed.)
   Preparing to unpack .../tzdata_2016f-0ubuntu0.16.04_all.deb ...
   Unpacking tzdata (2016f-0ubuntu0.16.04) over (2016d-0ubuntu0.16.04) ...
   Preparing to unpack .../libgimp2.0_2.8.16-1ubuntu1.1_i386.deb ...

  All but the last "Reading database ..." line should be elided from the
  message.

  As a matter of fact, those lines do not appear in messages mailed out
  from current Trusty systems (u-u version 0.82.1ubuntu2.4), so this
  appears to be a regression.

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