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module Ramaze
##
# Class that makes it possible to easily use multiple public directories in
# your Ramaze application.
#
# @author Michael Fellinger
# @since 14-03-2009
#
class Files
##
# Creates a new instance of the class, stores the given root directories
# and syncs the changes with Rack::Cascade.
#
# @author Michael Fellinger
# @since 14-03-2009
# @param [Array] roots A set of root directories that contain a number of
# public directories.
#
def initialize(*roots)
@roots = roots.flatten.map{|root| File.expand_path(root.to_s) }
sync
end
##
# Allows this class to be called as a Rack middleware.
#
# @author Michael Fellinger
# @since 14-03-2009
# @param [Hash] env Hash containing all the environment details.
#
def call(env)
@cascade.call(env)
end
##
# Adds a new path to the list of root directories.
#
# @author Michael Fellinger
# @since 14-03-2009
# @param [String] path The path to add to the existing root directories.
#
def <<(path)
@roots << File.expand_path(path.to_s)
@roots.uniq!
sync
end
##
# Syncs the class with Rack::Cascade.
#
# @author Michael Fellinger
# @since 14-03-2009
#
def sync
file_apps = @roots.map { |root| Rack::File.new(root) }
@cascade = Rack::Cascade.new(file_apps)
end
end # Files
end # Ramaze
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