Move version to separate file

github_changelog_generator.gemspec

@@ -1,6 +1,6 @@
 Gem::Specification.new do |s|
   s.name               = "github_changelog_generator"
-  s.version            = "1.1.2"
+  s.version            = GitHubChangelogGenerator::VERSION
   s.default_executable = "github_changelog_generator"
 
   s.required_ruby_version     = '>= 1.9.3'

lib/github_changelog_generator.rb

@@ -6,7 +6,7 @@ require 'httparty'
 require 'colorize'
 require_relative 'github_changelog_generator/parser'
 
-
+module GitHubChangelogGenerator
   class ChangelogGenerator
 
     attr_accessor :options, :all_tags, :github
@@ -374,3 +374,5 @@ if __FILE__ == $0
     changelog_generator = ChangelogGenerator.new
     changelog_generator.compund_changelog
   end
+
+end

lib/github_changelog_generator/parser.rb

@@ -1,6 +1,8 @@
 #!/usr/bin/env ruby
 require 'optparse'
+require_relative 'version'
 
+module GitHubChangelogGenerator
   class Parser
     def self.parse_options
       options = {:tag1 => nil, :tag2 => nil, :format => '%d/%m/%y', :output => 'CHANGELOG.md', :labels => %w(bug enhancement), :pulls => true, :issues => true, :verbose => true, :add_issues_wo_labels => true, :merge_prefix => '*Merged pull-request:* '}
@@ -20,7 +22,7 @@ class Parser
           puts opts
           exit
         end
-      opts.on('-v', '--[no-]verbose', 'Run verbosely. Default is true') do |v|
+        opts.on('--[no-]verbose', 'Run verbosely. Default is true') do |v|
           options[:verbose] = v
         end
         opts.on('--[no-]issues', 'Include closed issues to changelog. Default is true') do |v|
@@ -44,6 +46,10 @@ class Parser
         opts.on('--labels  x,y,z', Array, 'List of labels. Issues with that labels will be included to changelog. Default is \'bug,enhancement\'') do |list|
           options[:labels] = list
         end
+        opts.on('-v', '--version', 'Print version number') do |v|
+          puts "Version: #{GitHubChangelogGenerator::VERSION}"
+          exit
+        end
       }
 
       parser.parse!
@@ -79,3 +85,4 @@ class Parser
       options
     end
   end
+end

lib/github_changelog_generator/version.rb

@@ -0,0 +1,3 @@
+module GitHubChangelogGenerator
+  VERSION = '1.1.2'
+end