89 lines
1.9 KiB
Ruby
89 lines
1.9 KiB
Ruby
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class FSSM::Path
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def initialize(path=nil, glob=nil, &block)
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set_path(path || '.')
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set_glob(glob || '**/*')
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init_callbacks
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if block && block.arity == 0
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self.instance_eval(&block)
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elsif block && block.arity == 1
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block.call(self)
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end
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end
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def to_s
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@path.to_s
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end
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def to_pathname
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@path
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end
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def glob(value=nil)
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return @glob if value.nil?
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set_glob(value)
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end
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def create(callback_or_path=nil, &block)
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callback_action(:create, (block_given? ? block : callback_or_path))
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end
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def update(callback_or_path=nil, &block)
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callback_action(:update, (block_given? ? block : callback_or_path))
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end
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def delete(callback_or_path=nil, &block)
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callback_action(:delete, (block_given? ? block : callback_or_path))
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end
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private
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def init_callbacks
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do_nothing = lambda {|base, relative|}
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@callbacks = Hash.new(do_nothing)
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end
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def callback_action(type, arg=nil)
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if arg.is_a?(Proc)
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set_callback(type, arg)
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elsif arg.nil?
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get_callback(type)
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else
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run_callback(type, arg)
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end
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end
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def set_callback(type, arg)
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raise ArgumentError, "Proc expected" unless arg.is_a?(Proc)
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@callbacks[type] = arg
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end
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def get_callback(type)
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@callbacks[type]
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end
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def run_callback(type, arg)
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base, relative = split_path(arg)
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begin
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@callbacks[type].call(base, relative)
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rescue Exception => e
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raise FSSM::CallbackError, "#{type} - #{base.join(relative)}: #{e.message}", e.backtrace
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end
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end
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def split_path(path)
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path = Pathname.for(path)
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[@path, (path.relative? ? path : path.relative_path_from(@path))]
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end
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def set_path(path)
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path = Pathname.for(path)
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raise FSSM::FileNotFoundError, "#{path}" unless path.exist?
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@path = path.realpath
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end
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def set_glob(glob)
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@glob = glob.is_a?(Array) ? glob : [glob]
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end
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end
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