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CPAN::Plugin::Specfile(3perl) Perl Programmers Reference Guide CPAN::Plugin::Specfile(3perl)


CPAN::Plugin::Specfile - Proof of concept implementation of a trivial CPAN::Plugin


  # once in the cpan shell
  o conf plugin_list push CPAN::Plugin::Specfile
  # make permanent
  o conf commit
  # any time in the cpan shell to write a spec file
  test Acme::Meta
  # disable
  # if it is the last in plugin_list:
  o conf plugin_list pop
  # otherwise, determine the index to splice:
  o conf plugin_list
  # and then use splice, e.g. to splice position 3:
  o conf plugin_list splice 3 1


Implemented as a post-test hook, this plugin writes a specfile after every successful test run. The content is also written to the terminal.

As a side effect, the timestamps of the written specfiles reflect the linear order of all dependencies.

WARNING: This code is just a small demo how to use the plugin system of the CPAN shell, not a full fledged spec file writer. Do not expect new features in this plugin.


The target directory to store the spec files in can be set using "dir" as in

  o conf plugin_list push CPAN::Plugin::Specfile=dir,/tmp/specfiles-000042

The default directory for this is the "plugins/CPAN::Plugin::Specfile" directory in the cpan_home directory.


Andreas Koenig <>, Branislav Zahradnik <>

2021-09-24 perl v5.32.1