Class: Khaleesi::CLI::FileReader

Inherits:
Object
  • Object
show all
Defined in:
lib/khaleesi/cli.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(input) ⇒ FileReader

Returns a new instance of FileReader.



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# File 'lib/khaleesi/cli.rb', line 590

def initialize(input)
  @input = input
end

Instance Attribute Details

#input ⇒ Object (readonly)

Returns the value of attribute input.



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# File 'lib/khaleesi/cli.rb', line 589

def input
  @input
end

Instance Method Details

#file ⇒ Object 



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# File 'lib/khaleesi/cli.rb', line 594

def file
  case input
    when '-'
      $stdin
    when String
      File.new(input)
    when ->(i){ i.respond_to? :read }
      input
  end
end

#read ⇒ Object 



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# File 'lib/khaleesi/cli.rb', line 605

def read
  @read ||= begin
    file.read
  rescue => e
    $stderr.puts "unable to open #{input}: #{e.message}"
    exit 1
  ensure
    file.close
  end
end