lib/docsplit/command_line.rb in burisu-docsplit-0.7.8 vs lib/docsplit/command_line.rb in burisu-docsplit-0.7.9

@@ -1,14 +1,12 @@
 require 'optparse'
 require File.expand_path(File.dirname(__FILE__) + '/../docsplit')
 
 module Docsplit
-
   # A single command-line utility to separate a PDF into all its component parts.
   class CommandLine
-
-    BANNER = <<-EOS
+    BANNER = <<-EOS.freeze
 docsplit breaks apart documents into images, text, or individual pages.
 It wraps GraphicsMagick, Poppler, PDFTK, and JODConverter.
 
 Usage:
   docsplit COMMAND [OPTIONS] path/to/doc.pdf
@@ -37,48 +35,45 @@
       run
     end
 
     # Delegate to the Docsplit Ruby API to perform all extractions.
     def run
-      begin
-        case @command
-        when :images  then Docsplit.extract_images(ARGV, @options)
-        when :pages   then Docsplit.extract_pages(ARGV, @options)
-        when :text    then Docsplit.extract_text(ARGV, @options)
-        when :pdf     then Docsplit.extract_pdf(ARGV, @options)
+      case @command
+      when :images  then Docsplit.extract_images(ARGV, @options)
+      when :pages   then Docsplit.extract_pages(ARGV, @options)
+      when :text    then Docsplit.extract_text(ARGV, @options)
+      when :pdf     then Docsplit.extract_pdf(ARGV, @options)
+      else
+        if METADATA_KEYS.include?(@command)
+          value = Docsplit.send("extract_#{@command}", ARGV, @options)
+          puts value unless value.nil?
         else
-          if METADATA_KEYS.include?(@command)
-            value = Docsplit.send("extract_#{@command}", ARGV, @options)
-            puts value unless value.nil?
-          else
-            usage
-          end
+          usage
         end
-      rescue ExtractionFailed => e
-        puts e.message.chomp
-        exit(1)
       end
+    rescue ExtractionFailed => e
+      puts e.message.chomp
+      exit(1)
     end
 
     # Print out the usage help message.
     def usage
       puts "\n#{@option_parser}\n"
       exit
     end
 
-
     private
 
     # Use the OptionParser library to parse out all supported options. Return
     # options formatted for the Ruby API.
     def parse_options
-      @options = {:ocr => :default, :clean => true}
+      @options = { ocr: :default, clean: true }
       @option_parser = OptionParser.new do |opts|
         opts.on('-o', '--output [DIR]', 'set the directory for all output') do |d|
           @options[:output] = d
         end
-        opts.on('-p', '--pages [PAGES]', "extract specific pages (eg: 5-10)") do |p|
+        opts.on('-p', '--pages [PAGES]', 'extract specific pages (eg: 5-10)') do |p|
           @options[:pages] = p
         end
         opts.on('-s', '--size [SIZE]', 'set a fixed size (eg: 50x75)') do |s|
           @options[:size] = s.split(',')
         end
@@ -89,20 +84,20 @@
           @options[:density] = d
         end
         opts.on('--[no-]ocr', 'force OCR to be used, or disable OCR') do |o|
           @options[:ocr] = o
         end
-        opts.on('--no-clean', 'disable cleaning of OCR\'d text') do |c|
+        opts.on('--no-clean', 'disable cleaning of OCR\'d text') do |_c|
           @options[:clean] = false
         end
         opts.on('-l', '--language [LANGUAGE]', 'set the language (ISO 639-2/T code) for text extraction') do |l|
           @options[:language] = l
         end
-        opts.on('--no-orientation-detection', 'turn off automatic orientation detection in tesseract') do |n|
+        opts.on('--no-orientation-detection', 'turn off automatic orientation detection in tesseract') do |_n|
           @options[:detect_orientation] = false
         end
-        opts.on('-r', '--rolling', 'generate images from each previous image') do |r|
+        opts.on('-r', '--rolling', 'generate images from each previous image') do |_r|
           @options[:rolling] = true
         end
         opts.on_tail('-v', '--version', 'display docsplit version') do
           puts "Docsplit version #{Docsplit::VERSION}"
           exit
@@ -117,9 +112,7 @@
       rescue OptionParser::InvalidOption => e
         puts e.message
         exit(1)
       end
     end
-
   end
-
-end
\ No newline at end of file
+end