Merge pull request #17 from hone/circleci

CircleCI

circle.yml

+machine:
+  services:
+    - docker
+  ruby:
+    version: ruby-2.2.3
+  environment:
+    circleci: true

spec/simple_spec.rb

@@ -6,8 +6,8 @@ require_relative "support/path_helper"
 
 RSpec.describe "Simple" do
   before(:all) do
-    @debug = false
-    BuildpackBuilder.new(@debug)
+    @debug = true
+    BuildpackBuilder.new(@debug, ENV['CIRCLECI'])
   end
 
   after do

spec/support/app_runner.rb

@@ -71,7 +71,7 @@ class AppRunner
     end
   end
 
-  def get(path, capture_io = false, max_retries = 20)
+  def get(path, capture_io = false, max_retries = 30)
     if @run
       get_retry(path, max_retries)
     else

spec/support/buildpack_builder.rb

@@ -8,9 +8,10 @@ class BuildpackBuilder
 
   TAG = "hone/static:cedar-14"
 
-  def initialize(debug = false)
-    @debug = debug
-    @image = build_image
+  def initialize(debug = false, intermediates = false)
+    @debug         = debug
+    @intermediates = intermediates
+    @image         = build_image
   end
 
   def build_image
@@ -24,6 +25,6 @@ class BuildpackBuilder
         -> (chunk) { nil }
       end
 
-    Docker::Image.build_from_dir(buildpack_path.to_s, 't' => TAG, 'rm' => true, 'dockerfile' => "spec/support/docker/Dockerfile", &print_output)
+    Docker::Image.build_from_dir(buildpack_path.to_s, 't' => TAG, 'rm' => !@intermediates, 'dockerfile' => "spec/support/docker/Dockerfile", &print_output)
   end
 end