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class FSSM::Path
def initialize(path=nil, glob=nil, options={}, &block)
@options = options
set_path(path || '.')
set_glob(glob || '**/*')
init_callbacks
if block_given?
if block.arity == 1
block.call(self)
else
self.instance_eval(&block)
end
end
end
def to_s
@path.to_s
end
def to_pathname
@path
end
def glob(value=nil)
return @glob if value.nil?
set_glob(value)
end
def create(*args, &block)
callback_action(:create, (block_given? ? block : args))
end
def update(*args, &block)
callback_action(:update, (block_given? ? block : args))
end
def delete(*args, &block)
callback_action(:delete, (block_given? ? block : args))
end
private
def init_callbacks
do_nothing = lambda { |base, relative|}
@callbacks = Hash.new(do_nothing)
end
def callback_action(type, args=[])
if args.is_a?(Proc)
set_callback(type, args)
elsif args.empty?
get_callback(type)
else
run_callback(type, args)
end
end
def set_callback(type, arg)
raise ArgumentError, "Proc expected" unless arg.is_a?(Proc)
@callbacks[type] = arg
end
def get_callback(type)
@callbacks[type]
end
def run_callback(type, args)
callback_args = split_path(args[0])
callback_args << args[1] if @options[:directories]
begin
@callbacks[type].call(*callback_args)
rescue Exception => e
raise FSSM::CallbackError, "#{type} - #{args[0]}: #{e.message}", e.backtrace
end
end
def split_path(path)
path = FSSM::Pathname.for(path)
[@path.to_s, (path.relative? ? path : path.relative_path_from(@path)).to_s]
end
def set_path(path)
@path = FSSM::Pathname.for(path).expand_path
raise FSSM::FileNotFoundError, "No such file or directory - #{@path}" unless @path.exist?
raise FSSM::FileNotRealError, "Path is virtual - #{@path}" if @path.is_virtual?
@path = @path.realpath
end
def set_glob(glob)
@glob = glob.is_a?(Array) ? glob : [glob]
end
end
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