This code is a quick hack that analyzes Debian sid piuparts packages that are in state-dependency-failed-testing, and prints out information on the failed packages which are blocking their testing.

The output consists of:

• the number of packages in state-failed-dependency-testing which have been traced to a state-failed-testing package
• the number of packages in state-failed-testing causing the dependencies
• the list of state-failed-testing packages sorted by impact, with:

• the number of packages blocked by this package
• the number of packages which are blocked only by this package
• the number of packages left in state-failed-dependency-testing after this package and the ones above it pass
• the total number of packages which depend on this package, directly or recursively

Example:

# ./piublocker
dependency failed -  2047
failed testing -  222

blocking free cum  rdeps package
 458      39  2008   497 sgml-data
 439       3  1613   477 docbook-xsl
 278     202  1411   706 ca-certificates-java
 199     182  1221   205 texlive-base
 119     119  1102   163 iceweasel
  91      13  1088   121 menu
  88      29  1059    93 gnustep-base-common
  69       1   990    69 blends-common
  59       0   931    60 gnustep-back0.20
  58      10   896    85 antlr
  55      36   857   714 libhttp-date-perl
  55       5   825   124 libcommons-httpclient-java
  47      13   802   118 libcommons-beanutils-java
  45      23   778   117 openssh-client
  36      15   749    36 gforge-common
  35      34   714    35 gosa
  33      33   681    33 liquidsoap
  30       3   678    30 libspring-core-java
  28       1   656    28 libatinject-jsr330-api-java
  26      26   630    27 drupal6

The cumulative effect of removing the top blocking failed packages on this date can be seen here (from an earlier run):

This is a typical distribution of packages states in Debian sid piuparts. The packages in state-dependency-failed-testing are in dark red (from http://piuparts.debian.org/sid/)

The application parses http://piuparts.debian.org/sid/state-dependency-failed-testing.html to gather package data. The information is stored locally in the file piudata.json, to speed up subsequent runs. Delete the file to cause the data to be downloaded again.

BeautifulSoup and apt-rdepends must be installed.

The number of packages counted in state-failed-dependency-testing is less than that reported by the web page, possibly because it only counts packages which trace directly to a failed-dependency-test package.

The code is not a model of cleanliness, or efficiency.