Class: SimpleHdGraph::Command

Inherits:
Object
  • Object
show all
Defined in:
lib/simple-hd-graph/command.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(parser: Parser.new, reader: Reader.new, renderer: :plantuml) ⇒ Command

Returns a new instance of Command.

Parameters:

  • parser (Parser) (defaults to: Parser.new)
  • reader (Reader) (defaults to: Reader.new)
  • renderer (Symbol) (defaults to: :plantuml) 


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# File 'lib/simple-hd-graph/command.rb', line 14

def initialize(parser: Parser.new, reader: Reader.new, renderer: :plantuml)
  @parser = parser
  @reader = reader
  @renderer = SimpleHdGraph::Renderer.method(renderer.to_s)
end

Instance Attribute Details

#parser ⇒ Object (readonly)

Returns the value of attribute parser.



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# File 'lib/simple-hd-graph/command.rb', line 19

def parser
  @parser
end

#reader ⇒ Object (readonly)

Returns the value of attribute reader.



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# File 'lib/simple-hd-graph/command.rb', line 19

def reader
  @reader
end

#renderer ⇒ Object (readonly)

Returns the value of attribute renderer.



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# File 'lib/simple-hd-graph/command.rb', line 19

def renderer
  @renderer
end

Instance Method Details

#opts ⇒ OptionParser

:reek:NestedIterators, :reek:DuplicateMethodCall

Returns:

  • (OptionParser) 


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# File 'lib/simple-hd-graph/command.rb', line 59

def opts
  OptionParser.new do |opt|
    opt.on('-d DIR', '--dir', 'dirname') { |value|
      if File.exist?(value) && File.directory?(value)
        @dir = value
      else
        raise DirectoryNotExist, value
      end
    }
    opt.on('-f FILE', '--file', 'filename') { |value|
      if File.exist?(value) && File.file?(value)
        @file = value
      else
        raise FileNotExist, value
      end
    }
    opt.on('-r RENDERER', '--renderer', 'renderer') { |value|
      begin
        @renderer = SimpleHdGraph::Renderer.method(value)
      rescue NameError
        STDERR.puts "[Warining] renderer `#{value}` not found. falling back to :plantuml"
      end
    }
  end
end

#parse(argv) ⇒ Object

Parameters:

  • argv (Array) 


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# File 'lib/simple-hd-graph/command.rb', line 34

def parse(argv)
  opts.parse(argv)
end

#run(argv) ⇒ Object

Parameters:

  • argv (Array) 


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# File 'lib/simple-hd-graph/command.rb', line 24

def run(argv)
  parse(argv)
  if @file || @dir
    start
  end
end

#start ⇒ Object 



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# File 'lib/simple-hd-graph/command.rb', line 49

def start
  nodes = parser.parse(stream)

  @renderer.call(nodes)
end

#stream ⇒ String

Returns:

  • (String) 


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# File 'lib/simple-hd-graph/command.rb', line 41

def stream
  if (@dir)
    reader.read_dir(@dir)
  else
    reader.read_file(@file)
  end
end