add dspec task to test dist file; revert spec task to normal behavior

Rakefile.rb

@@ -18,8 +18,6 @@ task :build_dist do
 end
 
 RSpec::Core::RakeTask.new(:spec, :example_string) do |task, args|
-  FileUtils.mkdir_p("test")
-  FileUtils.cp("dist/rscons", "test/rscons.rb")
   if args.example_string
     ENV["partial_specs"] = "1"
     task.rspec_opts = %W[-e "#{args.example_string}" -f documentation]
@@ -28,6 +26,15 @@ end
 
 task :spec => :build_dist
 
+desc "Dist Specs"
+task :dspec, [:example_string] do |task, args|
+  FileUtils.mkdir_p("test")
+  FileUtils.cp("dist/rscons", "test/rscons.rb")
+  ENV["dist_specs"] = "1"
+  Rake::Task["spec"].invoke(args.example_string)
+  ENV.delete("dist_specs")
+end
+
 YARD::Rake::YardocTask.new do |yard|
   yard.files = ['lib/**/*.rb']
 end

spec/build_tests_spec.rb

@@ -96,7 +96,12 @@ describe Rscons do
         []
       end
     rscons_args = options[:rscons_args] || []
-    command = %W[ruby -I. -r _simplecov_setup #{@owd}/test/rscons.rb] + rsconscript_args + rscons_args + operation
+    if ENV["dist_specs"]
+      exe = "#{@owd}/test/rscons.rb"
+    else
+      exe = "#{@owd}/bin/rscons"
+    end
+    command = %W[ruby -I. -r _simplecov_setup #{exe}] + rsconscript_args + rscons_args + operation
     @statics[:build_test_id] ||= 0
     @statics[:build_test_id] += 1
     command_prefix =
@@ -128,6 +133,9 @@ end
 ENV["TERM"] = nil
 #{options[:ruby_setup_code]}
 EOF
+      unless ENV["dist_specs"]
+        fh.puts %[$LOAD_PATH.unshift(#{@owd.inspect} + "/lib")]
+      end
     end
     stdout, stderr, status = nil, nil, nil
     Bundler.with_clean_env do

spec/spec_helper.rb

@@ -12,4 +12,8 @@ SimpleCov.start do
   merge_timeout 3600
 end
 
+if ENV["dist_specs"]
   require_relative "../test/rscons"
+else
+  require "rscons"
+end