lib/invoker/version.rb in invoker-1.2.0 vs lib/invoker/version.rb in invoker-1.3.0

@@ -1,3 +1,47 @@
 module Invoker
-  VERSION = "1.2.0"
+  class Version
+    include Comparable
+    attr_reader :major, :minor, :patch
+
+    def initialize(number)
+      t_major, t_minor, t_patch = number.split('.')
+      @major = t_major.to_i
+      @minor = t_minor.to_i
+      @patch = t_patch.to_i
+    end
+
+    def to_a
+      [major, minor, patch].compact
+    end
+
+    def <=>(version)
+      (major.to_i <=> version.major.to_i).nonzero? ||
+        (minor.to_i <=> version.minor.to_i).nonzero? ||
+        patch.to_i <=> version.patch.to_i
+    end
+
+    def matches?(operator, number)
+      version = Version.new(number)
+      self == version
+
+      return self == version if operator == '='
+      return self > version  if operator == '>'
+      return self < version  if operator == '<'
+      return version <= self && version.next > self if operator  == '~>'
+    end
+
+    def next
+      next_splits = to_a
+
+      if next_splits.length == 1
+        next_splits[0] += 1
+      else
+        next_splits[-2] += 1
+        next_splits[-1] = 0
+      end
+
+      Version.new(next_splits.join('.'))
+    end
+  end
+  VERSION = "1.3.0"
 end