install fastboot-cli for the new fastboot-app-server rearch

buildpack/mrblib/buildpack/commands/compile.rb

@@ -58,6 +58,10 @@ def run
             @output_io.topic "Caching fastboot dependencies"
             @cache.store("#{cache_tuple.destination}/node_modules", cache_tuple.source)
 
+            unless command_success?("node_modules/.bin/ember-fastboot 2> /dev/null")
+              @output_io.topic "ember-fastboot command not detected, installing fastboot-cli"
+              pipe_exit_on_error("npm install fastboot-cli", @output_io, @error_io, @env)
+            end
             release_yml = {
               "default_process_types" => {
                 "web" => "ember-fastboot #{tuple.output_dir} --serve-assets-from #{tuple.output_dir} --port $PORT"

buildpack/spec/compile_spec.rb

@@ -19,14 +19,36 @@
     end
   end
 
-  it "should compile a fastboot build app" do
+  it "should compile an older fastboot build app" do
     Dir.mktmpdir do |dir|
       Dir.chdir(dir) do
         assert_compile(dir, "ember-cli-deploy-fastboot-build")
       end
     end
   end
 
+  it "should setup the fastboot-cli for newer fastboot apps" do
+    Dir.mktmpdir do |tmpdir|
+      Dir.chdir(tmpdir) do
+        tuple = Tuple.new("fastboot-cli", "dist")
+
+        cache_dir = "#{tmpdir}/cache"
+        env_dir   = "#{tmpdir}/env"
+        Dir.mkdir(cache_dir)
+        Dir.mkdir(env_dir)
+        File.open("#{env_dir}/FASTLY_CDN_URL", "w") do |file|
+          "limitless-caverns-12345.global.ssl.fastly.net"
+        end
+        work_dir = "#{tmpdir}/#{tuple.app}"
+        FileUtils.cp_r(fixtures(tuple.app), tmpdir)
+
+        output, _, status = run_bin('compile', work_dir, cache_dir, env_dir)
+        expect(output).to include("installing fastboot-cli")
+        expect(status).to be_success
+      end
+    end
+  end
+
   it "should clear bower cache if bower.json changes" do
     Dir.mktmpdir do |tmpdir|
       Dir.chdir(tmpdir) do