Exheredludis/doc/api/ruby/example_repository.rb
2011-03-26 19:00:38 +00:00

45 lines
1.4 KiB
Ruby

#!/usr/bin/env ruby
# vim: set sw=4 sts=4 et tw=100 :
=begin description
This example demonstrates how to use Repository.
=end
require 'Paludis'
require 'example_command_line'
include Paludis
exit_status = 0
# We start with an Environment, respecting the user's '--environment' choice.
env = EnvironmentFactory.instance.create(ExampleCommandLine.instance.environment)
# For each repository
env.repositories do |repo|
# A repository is identified by its name.
puts repo.name + ':'
# Like a PackageID, a Repository has metadata. Usually metadata
# keys will be available for all of the configuration options for
# that repository; some repositories also provide more (ebuild
# format repositories, for example, provide info_pkgs too). See
# "example_metadata_key.rb" for how to display a metadata key
# in detail.
puts " Metadata Keys:".ljust(30)
repo.each_metadata do |key|
puts " #{key.human_name}"
end
# Repositories support various methods for querying categories,
# packages, IDs and so on. These methods are used by
# Environment::[], but are also sometimes of direct use to
# clients.
puts " Number of categories: ".ljust(31) + repo.category_names.length.to_s
puts " IDs for sys-apps/paludis: ".ljust(31) + repo.package_ids('sys-apps/paludis').join(' ')
end
exit exit_status