Fix build with clear_cache true

panoplymedia · Jan 27, 2017 · e535c96 · e535c96
1 parent b97acc4
commit e535c96
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Showing 2 changed files with 9 additions and 1 deletion.
diff --git a/lib/slugbuilder/builder.rb b/lib/slugbuilder/builder.rb
@@ -59,6 +59,7 @@ def build(clear_cache: false, env: {}, prebuild: nil, postbuild: nil, slug_name:
 
     def wipe_cache
       FileUtils.rm_rf(@cache_dir)
+      FileUtils.mkdir_p(File.join(@cache_dir, 'buildpacks'))
     end
 
     def build_and_release

diff --git a/spec/slugbuilder/builder_spec.rb b/spec/slugbuilder/builder_spec.rb
@@ -63,8 +63,15 @@
     end
 
     it 'allows building without the cache' do
+      Slugbuilder.config.buildpacks = [
+        'https://github.com/heroku/heroku-buildpack-nodejs.git',
+        'https://github.com/heroku/heroku-buildpack-ruby.git'
+      ]
+      builder.build
+      Slugbuilder.config.buildpacks = ['https://github.com/heroku/heroku-buildpack-nodejs.git']
       builder.build(clear_cache: true)
-      expect(Dir.exists?('/tmp/slugbuilder-cache')).to be(false)
+      # make sure that ruby buildpack is no longer cached
+      expect(Dir['/tmp/slugbuilder-cache/buildpacks/*']).to eq(['/tmp/slugbuilder-cache/buildpacks/heroku-buildpack-nodejs'])
     end
 
     it 'accepts a prebuild Proc' do