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musicbrainz/lib/tools/cache.rb

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# -*- encoding: utf-8 -*-
module MusicBrainz
module Tools
class Cache
@@cache_path = nil
def self.cache_path=(path)
@@cache_path = path
end
def self.cache_path
@@cache_path
end
def self.clear_cache
FileUtils.rm_r(@@cache_path) if @@cache_path && File.exist?(@@cache_path)
end
def self.cache_contents(url)
response = nil
url_parts = url.split('/')
file_name = url_parts.pop
directory = url_parts.pop
file_path = @@cache_path ? "#{@@cache_path}/#{directory}/#{file_name}" : nil
if file_path && File.exist?(file_path)
response = File.open(file_path).gets
else
response = yield
unless response.nil? or file_path.nil?
FileUtils.mkdir_p file_path.split('/')[0..-2].join('/')
file = File.new(file_path, 'w')
file.puts(response.gets) # .force_encoding('UTF-8')
file.chmod(0755)
file.close
response.rewind
end
end
response
end
end
end
end