From cb3e067a1f8cf4c683eccf8cd80c7ced63568d8a Mon Sep 17 00:00:00 2001
From: Dominik Richter <dominik@vulcanosec.com>
Date: Sun, 21 Jun 2015 18:19:04 +0200
Subject: [PATCH] feature: helper method to check if a default command exists

Signed-off-by: Dominik Richter <dominik@vulcanosec.com>
---
 lib/resources/command.rb | 11 +++++++++++
 lib/vulcano.rb           |  1 +
 2 files changed, 12 insertions(+)
 create mode 100644 lib/resources/command.rb

diff --git a/lib/resources/command.rb b/lib/resources/command.rb
new file mode 100644
index 000000000..e9a845eaa
--- /dev/null
+++ b/lib/resources/command.rb
@@ -0,0 +1,11 @@
+# Copyright (c) 2015 Vulcano Security GmbH. All rights reserved.
+module Serverspec::Type
+  class Command < Base
+    # Check if a given command (executable) exists
+    # in the default path
+    def exists?
+      cmd = @name
+      Command.new("type \"#{cmd}\" > /dev/null").exit_status == 0
+    end
+  end
+end
\ No newline at end of file
diff --git a/lib/vulcano.rb b/lib/vulcano.rb
index 99d455cb6..a6c3cf9f2 100644
--- a/lib/vulcano.rb
+++ b/lib/vulcano.rb
@@ -13,6 +13,7 @@ require 'vulcano/rule'
 require 'vulcano/rspec_json_formatter'
 
 require 'resources/audit_policy'
+require 'resources/command'
 require 'resources/file'
 require 'resources/group_policy'
 require 'resources/mysql_conf'