swallow Heroku rake rspec error

Author: alexch

Rakefile

@@ -1,17 +1,21 @@
-require 'rspec/core/rake_task'
-
-task :default => :spec
-
 def windows?
   Rake::Win32.windows?
 end
 
-RSpec::Core::RakeTask.new(:spec) do |t|
-  t.pattern = "spec/**/*_spec.rb"
-  t.rspec_opts =
-      "--format d"
-  t.rspec_opts += " --color" if !windows?
-  # t.ruby_opts="-w"
+begin
+  require 'rspec/core/rake_task'
+
+  task :default => :spec
+
+  desc "Run all specs"
+  RSpec::Core::RakeTask.new(:spec) do |t|
+    t.pattern = "spec/**/*_spec.rb"
+    t.rspec_opts =
+        "--format d"
+    t.rspec_opts += " --color" if !windows?
+    # t.ruby_opts="-w"
+  end
+rescue LoadError # swallow Heroku deploy error
 end
 
 def rerun cmd, rerun_opts = nil