[Pkg-javascript-devel] Bug#924104: libjs-leaflet.markercluster: missing Breaks+Replaces: libjs-leaflet-markercluster (<< 1.4.1~dfsg-4)

[Andreas Beckmann]

Package: libjs-leaflet.markercluster
Version: 1.4.1~dfsg-5
Severity: serious
User: debian-qa at lists.debian.org
Usertags: piuparts replaces-without-breaks

Hi,

during a test with piuparts and DOSE tools I noticed your package causes
removal of files that also belong to another package.
This is caused by using Replaces without corresponding Breaks.

The installation sequence to reproduce this problem is

  apt-get install libjs-leaflet-markercluster/stretch
  # (1)
  apt-get install libjs-leaflet.markercluster/sid
  apt-get remove libjs-leaflet.markercluster
  # (2)

The list of installed files at points (1) and (2) should be identical,
but the following files have disappeared:

  /usr/share/javascript/leaflet/MarkerCluster.Default.css
  /usr/share/javascript/leaflet/MarkerCluster.css
  /usr/share/javascript/leaflet/leaflet.markercluster.js

This is a serious bug violating policy 7.6, see
https://www.debian.org/doc/debian-policy/ch-relationships.html#overwriting-files-and-replacing-packages-replaces
and also see the footnote that describes this incorrect behavior:
https://www.debian.org/doc/debian-policy/ch-relationships.html#id13

The libjs-leaflet.markercluster package has the following relationships with libjs-leaflet-markercluster:

  Conflicts: n/a
  Breaks:    n/a
  Replaces:  libjs-leaflet-markercluster

>From the attached log (scroll to the bottom...):

0m59.0s ERROR: FAIL: After purging files have disappeared:
  /usr/share/javascript/leaflet/MarkerCluster.Default.css        owned by: libjs-leaflet.markercluster
  /usr/share/javascript/leaflet/MarkerCluster.css        owned by: libjs-leaflet.markercluster
  /usr/share/javascript/leaflet/leaflet.markercluster.js         owned by: libjs-leaflet.markercluster

0m59.0s ERROR: FAIL: After purging files have been modified:
  /var/lib/dpkg/info/libjs-leaflet-markercluster.list    not owned


With the reintroduction of libjs-leaflet-markercluster as a
transitional package, the Replaces in libjs-leaflet.markercluster
needs to be versioned and a corresponding Breaks needs to be added.
The Provides: libjs-leaflet-markercluster in libjs-leaflet.markercluster
might be dropped.


cheers,

Andreas
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