Class: Renmov::CLI

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(args = ARGV, renamer = BasicRenamer) ⇒ CLI

Returns a new instance of CLI.



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# File 'lib/renmov/cli.rb', line 11

def initialize(args = ARGV, renamer = BasicRenamer)
  @executable_name = File.basename($PROGRAM_NAME, '.rb')
  @args      = args
  @options   = { verbose: false, noop: false }
  @optparse  = OptionParser.new
  @filenames = []
  @renamer   = renamer
end

Instance Attribute Details

#args ⇒ Object (readonly)

Returns the value of attribute args.



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# File 'lib/renmov/cli.rb', line 8

def args
  @args
end

#executable_name ⇒ Object (readonly)

Returns the value of attribute executable_name.



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# File 'lib/renmov/cli.rb', line 8

def executable_name
  @executable_name
end

#filenames ⇒ Object

Returns the value of attribute filenames.



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# File 'lib/renmov/cli.rb', line 9

def filenames
  @filenames
end

#options ⇒ Object (readonly)

Returns the value of attribute options.



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# File 'lib/renmov/cli.rb', line 8

def options
  @options
end

#optparse ⇒ Object (readonly)

Returns the value of attribute optparse.



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# File 'lib/renmov/cli.rb', line 8

def optparse
  @optparse
end

#renamer ⇒ Object

Returns the value of attribute renamer.



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# File 'lib/renmov/cli.rb', line 9

def renamer
  @renamer
end

Instance Method Details

#output_error_message(msg) ⇒ Object 



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# File 'lib/renmov/cli.rb', line 79

def output_error_message(msg)
  $stderr.puts "#{executable_name}: #{msg}"
  $stderr.puts optparse
end

#parse_options ⇒ Object 



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# File 'lib/renmov/cli.rb', line 48

def parse_options
  optparse.banner =
    ['Rename video files to a consistent format.', '',
     "Usage: #{executable_name} [options] filename..."].join("\n")

  optparse.on('-v', '--verbose',
              'Output more information') do
    options[:verbose] = true
  end

  optparse.on('-n', '--noop',
              'Output actions without invoking them') do
    options[:noop]    = true
    options[:verbose] = true
  end

  optparse.on_tail('-h', '--help',
                   'Show this message') do
    puts optparse
    exit
  end

  optparse.on_tail('--version',
                   'Show version') do
    puts Renmov::VERSION
    exit
  end

  self.filenames = optparse.parse! args
end

#rename_file(old, new) ⇒ Object 



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# File 'lib/renmov/cli.rb', line 84

def rename_file(old, new)
  unless old == new
    FileUtils.mv(old,
                 new,
                 verbose: options[:verbose],
                 noop:    options[:noop])
  end
end

#run ⇒ Object 



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# File 'lib/renmov/cli.rb', line 20

def run
  exit_status = 0

  begin
    parse_options
    raise NoFilenameError if filenames.empty?

    filenames.each do |filename|
      dirname   = "#{File.dirname(filename)}/"
      dirname.gsub!(/\A\.\/\z/, '')
      
      basename  = File.basename(filename)
      renamer_i = renamer.new(basename)
      newname   = "#{dirname}#{renamer_i.rename}"

      rename_file(filename, newname)
    end
  rescue OptionParser::InvalidOption => e
    output_error_message(e)
    exit_status = 1
  rescue NoFilenameError => e
    output_error_message(e)
    exit_status = 1
  end

  exit_status
end