1 files changed, 67 insertions, 0 deletions
diff --git a/lib/chef/mixin/path_sanity.rb b/lib/chef/mixin/path_sanity.rb
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+++ b/lib/chef/mixin/path_sanity.rb
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+#
+# Author:: Seth Chisamore (<schisamo@opscode.com>)
+# Copyright:: Copyright (c) 2011 Opscode, Inc.
+# License:: Apache License, Version 2.0
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+class Chef
+  module Mixin
+    module PathSanity
+
+      def enforce_path_sanity(env=ENV)
+        if Chef::Config[:enforce_path_sanity]
+          path_separator = Chef::Platform.windows? ? ';' : ':'
+          existing_paths = env["PATH"].split(path_separator)
+          # ensure the Ruby and Gem bindirs are included
+          # mainly for 'full-stack' Chef installs
+          paths_to_add = []
+          paths_to_add << ruby_bindir unless sane_paths.include?(ruby_bindir)
+          paths_to_add << gem_bindir unless sane_paths.include?(gem_bindir)
+          paths_to_add << sane_paths if sane_paths
+          paths_to_add.flatten!.compact!
+          paths_to_add.each do |sane_path|
+            unless existing_paths.include?(sane_path)
+              env_path = env["PATH"].dup
+              env_path << path_separator unless env["PATH"].empty?
+              env_path << sane_path
+              env["PATH"] = env_path
+            end
+          end
+        end
+      end
+
+      private
+
+      def sane_paths
+        @sane_paths ||= begin
+          if Chef::Platform.windows?
+            %w[]
+          else
+            %w[/usr/local/sbin /usr/local/bin /usr/sbin /usr/bin /sbin /bin]
+          end
+        end
+      end
+
+      def ruby_bindir
+        RbConfig::CONFIG['bindir']
+      end
+
+      def gem_bindir
+        Gem.bindir
+      end
+
+    end
+  end
+end