Module: OptionsParser

Defined in:
lib/wiki_lyrics/cli/optionsparser.rb

Constant Summary collapse

@@max_chunksize = 
80

Class Method Summary collapse

Class Method Details

.get_text_chunk(text, start_idx) ⇒ Object 



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# File 'lib/wiki_lyrics/cli/optionsparser.rb', line 41

def self.get_text_chunk( text, start_idx )

	# find first non empty character in chunk:
	while ( start_idx < (text.size-1) && "\n ".index( text[start_idx] ) )
		start_idx += 1
	end

	# no more chunks left
	return nil if start_idx >= text.size

	# buscar el ultimo " " o el primer "\n "
	end_idx = nil
	idx = start_idx
	while ( idx < text.size && idx < start_idx + @@max_chunksize + 1 )
		if text[idx] == "\n"[0]
			end_idx = idx
			break
		elsif text[idx] == " "[0]
			end_idx = idx
		end
		idx += 1
	end
	end_idx = idx if ! end_idx || idx == text.size
	return text.slice( start_idx..end_idx-1 ), end_idx

end

.parse(args) ⇒ Object 



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# File 'lib/wiki_lyrics/cli/optionsparser.rb', line 77

def self.parse( args )

	opts = OpenStruct.new()
	opts.cleanup = true
	opts.feat_fix = true
	opts.meta = true
	opts.sites = ["Lyriki", "LyricWiki"]
	opts.submit = nil
	opts.review = true
	opts.prompt_autogen = false
	opts.prompt_no_lyrics = false
	opts.proxy = nil
	opts.toolkits = TOOLKITS_DEFAULT

	parser = OptionParser.new() do |parser|
		parser.banner = I18n.get( "cli.usage", "wikilyrics.rb" )
			parser.separator I18n.get( "cli.description" )

		parser.separator ""
		parser.separator I18n.get( "cli.options" )
		parser.on( "-a", "--artist [ARTIST]", *split( I18n.get( "cli.options.artist", "batch-file" ) ) ) do |artist|
			opts.artist = artist
		end
		parser.on( "-t", "--title [TITLE]", *split( I18n.get( "cli.options.title", "batch-file" ) ) ) do |title|
			opts.title = title
		end
		parser.on( "-l", "--album [ALBUM]", *split( I18n.get( "cli.options.album" ) ) ) { |album| opts.album = album }
		parser.on( "-y", "--year [YEAR]", *split( I18n.get( "cli.options.year" ) ) ) { |year| opts.year = year }
		parser.on( "-f", "--[no-]featfix", *split( I18n.get( "cli.options.featfix", I18n.get( "cli.values.true" ) ) ) ) do |feat_fix|
			opts.feat_fix = feat_fix
		end

		parser.separator ""
		parser.on( "-b", "--batch-file [FILE]", *split( I18n.get( "cli.options.batchfile" ) ) ) do |batch_file|
			opts.batch_file = batch_file
		end

		parser.separator ""
		parser.on( "-c", "--[no-]cleanup", *split( I18n.get( "cli.options.cleanup", I18n.get( "cli.values.true" ) ) ) ) do |cleanup|
			opts.cleanup = cleanup
		end
		parser.separator ""
		parser.on( "--sites [SITE1,SITE2...]", Array, *split( I18n.get( "cli.options.sites", opts.sites.join( "," ), "sites-list" ) ) ) { |sites| opts.sites = sites }
		parser.on( "--sites-list", *split( I18n.get( "cli.options.sites.list" ) ) ) do
			puts I18n.get( "cli.options.sites.list.available" )
			Plugins.load_plugins( Plugins.find_plugins() )
			plugins = Plugins.all_plugins().sort { |a,b| a.class.name <=> b.class.name }
			plugins.each() { |plugin| puts " - #{plugin.class.name.slice(12..-1)} (#{plugin.site_host})" }
			exit
		end

		parser.separator ""
		parser.on( "-s", "--submit [Lyriki|LyricWiki]", *split( I18n.get( "cli.options.submit", "username", "password" ) ) ) do |submit|
			opts.submit = submit
		end
		parser.on( "-u", "--username [USERNAME]", *split( I18n.get( "cli.options.username", "submit" ) ) ) do |username|
			opts.username = username
		end
		parser.on( "-p", "--password [PASSWORD]", *split( I18n.get( "cli.options.password", "submit" ) ) ) do |password|
			opts.password = password
		end
		parser.on( "--persist [SESSIONFILE]", *split( I18n.get( "cli.options.persist", "username", "password" ) ) ) do |file|
			opts.session_file = file
		end

		parser.on( "-r", "--[no-]review", *split( I18n.get( "cli.options.prompt.review", I18n.get( "cli.values.true" ), "submit" ) ) ) { |review| opts.review = review }
		parser.on( "-g", "--[no-]autogen", *split( I18n.get( "cli.options.prompt.autogen", I18n.get( "cli.values.false" ), "review" ) ) ) { |autogen| opts.prompt_autogen = autogen }
		parser.on( "-n", "--[no-]new", *split( I18n.get( "cli.options.prompt.nolyrics", I18n.get( "cli.values.false" ), "review" ) ) ) { |prompt_no_lyrics| opts.prompt_no_lyrics = prompt_no_lyrics }

		parser.separator ""
		parser.on( "-x", "--proxy [PROXY]", *split( I18n.get( "cli.options.proxy" ) ) ) { |proxy| opts.proxy = proxy }

		parser.separator ""
		parser.on( "-k", "--toolkits [TK1,TK2...]", Array, *split( I18n.get( "cli.options.toolkits", TOOLKITS_DEFAULT.join( "," ) ) ) ) { |toolkits| opts.toolkits = toolkits ? toolkits : [] }

		parser.separator ""
		parser.on_tail( "-h", "--help", *split( I18n.get( "cli.options.help" ) ) ) { puts parser; exit }
		parser.on_tail( "-v", "--version", *split( I18n.get( "cli.options.version" ) ) ) { puts "#{WIKILYRICS_VERSION}"; exit }
	end

	begin

		parser.parse!( args )

		raise ArgumentError, I18n.get( "cli.error.missingoption", "--artist" ) if ! opts.artist && ! opts.batch_file
		raise ArgumentError, I18n.get( "cli.error.missingoption", "--title" ) if ! opts.title && ! opts.batch_file

		raise ArgumentError, I18n.get( "cli.error.missingoption", "--username" ) if opts.submit && ! opts.username
		raise ArgumentError, I18n.get( "cli.error.missingoption", "--password" ) if opts.submit && ! opts.password

		if opts.batch_file && (opts.artist || opts.title || opts.album || opts.year)
			raise ArgumentError, I18n.get( "cli.error.incompatibleoptions", "-b", "-a/-t/-l/-y" )
		end

		if opts.prompt_autogen && ( ! opts.submit || ! opts.review )
			raise ArgumentError, I18n.get( "cli.error.missingdependency", "-g", "-r" )
		end

		if opts.prompt_no_lyrics && ( ! opts.submit || ! opts.review )
			raise ArgumentError, I18n.get( "cli.error.missingdependency", "-n", "-r" )
		end

		opts.toolkits.each() do |toolkit|
			if ! TOOLKITS_DEFAULT.include?( toolkit )
				raise ArgumentError, I18n.get( "cli.error.invalidoptionvalue", "toolkit", toolkit )
			end
		end

			if opts.submit && opts.review && opts.toolkits.empty?
			raise ArgumentError, I18n.get( "cli.error.notoolkit" )
		end

		if opts.submit
			if ! ["Lyriki","LyrikiLocal","LyricWiki"].include?( opts.submit )
				raise ArgumentError, I18n.get( "cli.error.invalidoptionvalue", "submit", opts.submit )
			end
			opts.sites = [] if ! opts.sites
			opts.sites << opts.submit
		end

		if ! opts.sites || opts.sites.empty?
			raise ArgumentError, I18n.get( "cli.error.nosite" )
		else
			found_plugins = Plugins.find_plugins()
			opts.sites.uniq!()
			opts.sites.each() do |site|
				if ! found_plugins.include?( site )
					raise ArgumentError, I18n.get( "cli.error.invalidoptionvalue", "site", site )
				end
			end
		end

		if opts.proxy
			begin
				# TODO is this correct?
				opts.proxy = nil if URI.parse( opts.proxy ).to_s() != ""
			rescue Exception
				raise ArgumentError, I18n.get( "cli.error.invalidoptionvalue", "proxy", opts.proxy )
			end
		end

		return opts

	rescue OptionParser::InvalidOption, OptionParser::AmbiguousOption, ArgumentError => ex
		puts ex.is_a?( ArgumentError ) ? "error: #{ex}" : ex
		puts parser
		exit 1
	end

end

.split(text) ⇒ Object 



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# File 'lib/wiki_lyrics/cli/optionsparser.rb', line 68

def self.split( text )
	ret = []
	start_idx = 0
	while ( (chunk, start_idx = get_text_chunk( text, start_idx )) && chunk != nil )
		ret << chunk
	end
	return ret
end