Merge pull request #128 from integrum/master

Set environment variables

README.md

@@ -96,6 +96,13 @@ guard 'rspec', :spec_paths => "test" do
   # ...
 end
 ```
+If you want to set an environment variable, you can configure `:env` option with a hash:
+
+``` ruby
+guard 'rspec', :env => {'RAILS_ENV' => 'guard'} do
+  # ...
+end
+```
 [Turnip](https://github.com/jnicklas/turnip) is supported (Ruby 1.9.X only), but you must enable it:
 ``` ruby
 guard 'rspec', :turnip => true do

lib/guard/rspec/runner.rb

@@ -14,6 +14,7 @@ def initialize(options = {})
           :binstubs     => false,
           :rvm          => nil,
           :cli          => nil,
+          :env          => nil,
           :notification => true,
           :turnip       => false
         }.merge(options)
@@ -80,6 +81,11 @@ def parsed_or_default_formatter
 
     private
 
+      def environment_variables
+        return if @options[:env].nil?
+        "export " + @options[:env].map {|key, value| "#{key}=#{value}"}.join(' ') + ';'
+      end
+
       def rspec_arguments(paths, options)
         arg_parts = []
         arg_parts << options[:cli]
@@ -97,6 +103,7 @@ def rspec_arguments(paths, options)
 
       def rspec_command(paths, options)
         cmd_parts = []
+        cmd_parts << environment_variables
         cmd_parts << "rvm #{@options[:rvm].join(',')} exec" if @options[:rvm].respond_to?(:join)
         cmd_parts << "bundle exec" if bundle_exec?
         cmd_parts << rspec_executable
@@ -230,7 +237,6 @@ def deprecations_warnings
       def formatter_regex
         @formatter_regex ||= /(?:^|\s)(?:-f\s*|--format(?:=|\s+))([\w:]+)/
       end
-
     end
   end
 end

spec/guard/rspec/runner_spec.rb

@@ -370,6 +370,21 @@
             end
           end
         end
+
+        describe ':env' do
+          context ":env => {'RAILS_ENV' => 'blue'}" do
+            subject { described_class.new(:env => {'RAILS_ENV' => 'blue'}) }
+
+            it 'sets the Rails environment' do
+              subject.should_receive(:system).with(
+                "export RAILS_ENV=blue; bundle exec rspec -f progress -r #{@lib_path.join('guard/rspec/formatters/notification_rspec.rb')} " <<
+                '-f Guard::RSpec::Formatter::NotificationRSpec --out /dev/null --failure-exit-code 2 spec'
+                ).and_return(true)
+
+              subject.run(['spec'])
+            end
+          end
+        end
       end
     end