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require 'pathname'
# Public: Various methods that implement puppet-lint's plugin system
#
# Examples
#
# PuppetLint::Plugins.load_spec_helper
class PuppetLint::Plugins
# Internal: Find any gems containing puppet-lint plugins and load them.
#
# Returns nothing.
def self.load_from_gems
gem_directories.each do |directory|
path = directory + 'puppet-lint/plugins'
next unless path.directory?
Dir["#{path}/**/*.rb"].each do |file|
load(file)
end
end
end
# Public: Load the puppet-lint spec_helper.rb
#
# Returns nothings.
def self.load_spec_helper
gemspec = gemspecs.find { |spec| spec.name == 'puppet-lint' }
load(Pathname.new(gemspec.full_gem_path) + 'spec/spec_helper.rb')
end
class << self
private
# Internal: Check if RubyGems is loaded and available.
#
# Returns true if RubyGems is available, false if not.
def rubygems?
defined?(::Gem)
end
# Internal: Retrieve a list of avaliable gemspecs.
#
# Returns an Array of Gem::Specification objects.
def gemspecs
@gemspecs ||= if Gem::Specification.respond_to?(:latest_specs)
Gem::Specification.latest_specs(load_prerelease_plugins?)
else
Gem.searcher.init_gemspecs
end
end
# Internal: Determine whether to load plugins that contain a letter in their version number.
#
# Returns true if the configuration is set to load "prerelease" gems, false otherwise.
def load_prerelease_plugins?
# Load prerelease plugins (which ruby defines as any gem which has a letter in its version number).
# Can't use puppet-lint configuration object here because this code executes before the command line is parsed.
return ['true', 'yes'].include?(ENV['PUPPET_LINT_LOAD_PRERELEASE_PLUGINS'].downcase) if ENV['PUPPET_LINT_LOAD_PRERELEASE_PLUGINS']
false
end
# Internal: Retrieve a list of available gem paths from RubyGems.
#
# Returns an Array of Pathname objects.
def gem_directories
if rubygems?
gemspecs.reject { |spec| spec.name == 'puppet-lint' }.map do |spec|
Pathname.new(spec.full_gem_path) + 'lib'
end
else
[]
end
end
end
end
Dir[File.expand_path('plugins/**/*.rb', File.dirname(__FILE__))].sort.each do |file|
require file
end
PuppetLint::Plugins.load_from_gems
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