Class: Renamer

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(*args) ⇒ Renamer

rubocop:disable Metrics/AbcSize, Metrics/CyclomaticComplexity, Metrics/MethodLength, Metrics/PerceivedComplexity Legacy CLI arg-parser predating this cleanup pass; splitting it apart is a real refactor, not a lint fix, so it's exempted rather than restructured here.



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# File 'lib/renamer.rb', line 12

def initialize(*args)
  args = args.flatten
  a0 = args.first
  al = args.last

  @real_file = false
  @options = { format: 0, auto: false, debug: false, test: false, no_lookup: false }
  @version = SR::VERSION
  @selector = Selector.new
  @formats = @selector.gen_forms('Year', 'Title', 'Author')

  @options[:debug] = true if args.include? '--debug'

  if args.include? '--test'
    @options[:test] = true
    def puts(*x) = x
  end

  @options[:no_lookup] = true if args.include? '--no-lookup'

  @options[:auto] = true if args.include? '--auto'

  @options[:format] = args[args.index('--format') + 1].to_i if args.include? '--format'

  # Filename comes last.
  if !al.nil? && al[0] != '-'
    @file = File.join(Dir.pwd, args.last).to_s
    @real_file = @file && File.file?(@file)
  end
  if @file && !@real_file
    puts "Input #{@file} not found."
    puts 'Please specify a pdf file to use with scholar-rename.'
    exit 1
  end

  # Main argument processing.
  if args.empty? || a0 == '--h' || a0 == '--help'
    puts 'usage: scholar-rename (--format #) (--auto) (--no-lookup) [file.pdf]'
    puts "\t--show-formats\tshow format options"
    puts "\t--auto\tpick default formatter"
    puts "\t--no-lookup\tdisable Semantic Scholar metadata lookup"
    puts "\t-v, --version\tshow version number"
  elsif ['-v', '--version'].include?(a0)
    puts @version
    exit 0 unless @options[:test]
  elsif !prereq?
    puts 'please install pdftotext (via poppler) to use scholar-rename'
    puts 'OSX: brew install pkg-config poppler'
    exit 1
  elsif a0 == '--show-formats'
    @formats.each_with_index { |x, i| puts "\t#{i}: #{x}" }
  end

  rename args if @real_file
end

Instance Attribute Details

#format ⇒ Object (readonly)

Returns the value of attribute format.



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# File 'lib/renamer.rb', line 7

def format
  @format
end

#formats ⇒ Object (readonly)

Returns the value of attribute formats.



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# File 'lib/renamer.rb', line 7

def formats
  @formats
end

#selector ⇒ Object (readonly)

Returns the value of attribute selector.



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# File 'lib/renamer.rb', line 7

def selector
  @selector
end

#version ⇒ Object (readonly)

Returns the value of attribute version.



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# File 'lib/renamer.rb', line 7

def version
  @version
end

Instance Method Details

#prereq? ⇒ Boolean

rubocop:enable Metrics/AbcSize, Metrics/CyclomaticComplexity, Metrics/MethodLength, Metrics/PerceivedComplexity

Returns:

  • (Boolean) 


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# File 'lib/renamer.rb', line 69

def prereq?
  system('pdftotext -v 2> /dev/null')
  $CHILD_STATUS.success?
end

#rename(args) ⇒ Object 



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# File 'lib/renamer.rb', line 74

def rename(args)
  raw = `pdftotext -q '#{@file}' -` # may contain non-ascii characters
  content = raw.encode('UTF-8', invalid: :replace, undef: :replace)

  # Choose pdf qualities
  @selector.content = content
  @selector.options = @options
  @selector.select_all
  md = @selector.metadata

  if @options[:debug]
    puts md[:year] if args.include? '--show-year'
    puts md[:title] if args.include? '--show-title'
    puts md[:author] if args.include? '--show-author'
  else
    File.rename(@file, @selector.title)
    puts "Saved #{@selector.title}"
  end
end