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require 'uri'
require 'puppet/forge'
class Puppet::Forge
# = Cache
#
# Provides methods for reading files from local cache, filesystem or network.
class Cache
# Instantiate new cache for the +repository+ instance.
def initialize(repository, options = {})
@repository = repository
@options = options
end
# Return filename retrieved from +uri+ instance. Will download this file and
# cache it if needed.
#
# TODO: Add checksum support.
# TODO: Add error checking.
def retrieve(url)
(path + File.basename(url.to_s)).tap do |cached_file|
uri = url.is_a?(::URI) ? url : ::URI.parse(url)
unless cached_file.file?
if uri.scheme == 'file'
# CGI.unescape butchers Uris that are escaped properly
FileUtils.cp(Puppet::Util.uri_unescape(uri.path), cached_file)
else
# TODO: Handle HTTPS; probably should use repository.contact
data = read_retrieve(uri)
cached_file.open('wb') { |f| f.write data }
end
end
end
end
# Return contents of file at the given URI's +uri+.
def read_retrieve(uri)
return uri.read
end
# Return Pathname for repository's cache directory, create it if needed.
def path
(self.class.base_path + @repository.cache_key).tap{ |o| o.mkpath }
end
# Return the base Pathname for all the caches.
def self.base_path
(Pathname(Puppet.settings[:module_working_dir]) + 'cache').tap do |o|
o.mkpath unless o.exist?
end
end
# Clean out all the caches.
def self.clean
base_path.rmtree if base_path.exist?
end
end
end
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