lib/polisher/yum.rb in polisher-0.9.1 vs lib/polisher/yum.rb in polisher-0.10.1

@@ -1,30 +1,37 @@
 # Polisher Yum Operations
 #
 # Licensed under the MIT license
 # Copyright (C) 2013-2014 Red Hat, Inc.
 
-require 'awesome_spawn'
+require 'polisher/core'
+require 'polisher/component'
 
 module Polisher
-  class Yum
-    YUM_CMD = '/usr/bin/yum'
+  Component.verify("Yum", 'awesome_spawn') do
+    class Yum
+      include ConfHelpers
 
-    # Retrieve version of gem available in yum
-    #
-    # @param [String] name name of gem to loopup
-    # @param [Callable] bl optional callback to invoke with version retrieved
-    # @returns [String] version of gem in yum or nil if not found
-    def self.version_for(name, &bl)
-      version = nil
-      result  = AwesomeSpawn.run "#{YUM_CMD} info rubygem-#{name}"
-      out = result.output
+      conf_attr :yum_cmd, '/usr/bin/yum'
 
-      if out.include?("Version")
-        version = out.lines.to_a.find { |l| l =~ /^Version.*/ }
-        version = version.split(':').last.strip
+      # Retrieve version of gem available in yum
+      #
+      # @param [String] name name of gem to loopup
+      # @param [Callable] bl optional callback to invoke with version retrieved
+      # @returns [String] version of gem in yum or nil if not found
+      def self.version_for(name, &bl)
+        require_cmd! yum_cmd
+
+        version = nil
+        result  = AwesomeSpawn.run "#{yum_cmd} info rubygem-#{name}"
+        out = result.output
+
+        if out.include?("Version")
+          version = out.lines.to_a.detect { |l| l =~ /^Version.*/ }
+          version = version.split(':').last.strip
+        end
+        bl.call(:yum, name, [version]) unless bl.nil?
+        version
       end
-      bl.call(:yum, name, [version]) unless(bl.nil?) 
-      version
     end
-  end
-end
+  end # Component.verify("Yum")
+end # module Polisher