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Contents
# -*- encoding: UTF-8 -*-
require 'ostruct'
require 'csd/extensions/core/string'
module CSD
# A convenience wrapper to get information about the available applications
#
class Applications
# Returns the application module instance of +app_name+. Returns +nil+ if the application could not be found or loaded.
#
def self.find(app_name)
return nil if app_name.to_s.empty?
begin
UI.debug "#{self}.find got a request to see whether `#{app_name}´ is a valid application or not"
require File.join(Path.applications, app_name.to_s)
UI.debug "#{self}.find tries to initialize the loaded application `#{app_name}´ now"
"CSD::Application::#{app_name.to_s.camelize}".constantize
rescue LoadError => e
UI.debug "#{self}.find could not load `#{app_name}´ in #{e.to_s.gsub('no such file to load -- ', '').enquote}"
nil
end
end
# This method returns instantiated modules of all valid applications in an +Array+ or in a block.
#
def self.all(&block)
result = []
Dir.directories(Path.applications).sort.each do |dir|
next if dir == 'default'
if app = find(dir)
block_given? ? yield(app) : result << app
end
end
result
end
# This method holds the desired application and initializes its module into +@@current+.
#
def self.current
# In testmode we don't want to perform caching
return choose_current if Options.testmode
# Otherwise we choose and cache the current application module here
@@current ||= choose_current
end
protected
# This method identifies the desired application. No caching takes place here.
# It is meant to be very robust, we expect the application to be any one of the first three arguments.
#
def self.choose_current
Applications.find(ARGV.first) || Applications.find(ARGV.second) || Applications.find(ARGV.third)
end
end
end
Version data entries
12 entries across 12 versions & 1 rubygems