lib/shivers.rb in shivers-0.3.0 vs lib/shivers.rb in shivers-0.4.0.pre.1

@@ -1,4 +1,30 @@
 require 'shivers/version'
 
+require 'semantic'
+
 module Shivers
+  class Version
+    def self.from_file(path)
+      git_sha = ENV['GIT_SHA'] || 'LOCAL'
+      metadata = "#{git_sha}"
+
+      base_version = File.exist?(path) ?
+          File.open(path) { |file| file.read.strip } :
+          '0.0.0'
+
+      Version.new("#{base_version}+#{metadata}")
+    end
+
+    def initialize(version_string)
+      @version = Semantic::Version.new(version_string)
+    end
+
+    def to_docker_tag
+      to_s.gsub(/[\+]/, '_').downcase
+    end
+
+    def to_s
+      @version.to_s
+    end
+  end
 end