--version argument added.

Author: TheFox

.travis.yml

@@ -17,4 +17,5 @@ install:
 script:
     - make test
     - cd
-    - which -a mpcat
+    - which -a mpcat
+    - mpcat --version

bin/mpcat

@@ -7,6 +7,7 @@ require 'optparse'
 require 'yaml'
 require 'pp'
 require 'msgpack'
+require 'mpcat'
 
 
 options = {
@@ -25,6 +26,12 @@ opts = OptionParser.new do |o|
 		options[:yaml] = false
 	end
 
+	o.on_tail('--version', 'Show version.') do
+		puts "mpcat #{MPCat::VERSION}"
+		puts MPCat::HOMEPAGE
+		exit
+	end
+	
 	o.on_tail('-h', '--help', 'Show this message.') do
 		puts o
 		puts

lib/mpcat.rb

@@ -0,0 +1,2 @@
+
+require 'mpcat/version'

lib/mpcat/version.rb

@@ -0,0 +1,6 @@
+
+module MPCat
+	VERSION = '1.1.0-dev.1'
+	DATE = '2015-12-21'
+	HOMEPAGE = 'https://github.com/TheFox/mpcat'
+end

mpcat.gemspec

@@ -1,20 +1,26 @@
 # coding: UTF-8
 
+lib = File.expand_path('../lib', __FILE__)
+$LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
+
+require 'mpcat/version'
+
 Gem::Specification.new do |spec|
 	spec.name          = 'mpcat'
-	spec.version       = '1.0.1-dev'
-	spec.date          = '2015-12-21'
+	spec.version       = MPCat::VERSION
+	spec.date          = MPCat::DATE
 	spec.author        = 'Christian Mayer'
 	spec.email         = '[email protected]'
 
 	spec.summary       = %q{MessagePack Cat}
 	spec.description   = %q{Pretty print for MessagePack files.}
-	spec.homepage      = 'https://github.com/TheFox/mpcat'
+	spec.homepage      = MPCat::HOMEPAGE
 	spec.license       = 'GPL-3.0'
 
 	spec.files         = `git ls-files -z`.split("\x0").reject{ |f| f.match(%r{^(test|spec|features)/}) }
 	spec.bindir        = 'bin'
 	spec.executables   = ['mpcat']
+	spec.require_paths = ['lib']
 	spec.required_ruby_version = '>=1.9.0'
 
 	spec.add_dependency 'msgpack', '~>0.7'