Update the compiler build process to use a submodule reference. Update to the 20160619 release.

Author: ChadKillingsworth

.gitignore

@@ -1,2 +1,4 @@
 node_modules
 npm-debug.log
+compiler.jar
+contrib/

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "compiler"]
+	path = compiler
+	url = [email protected]:google/closure-compiler.git

.travis.yml

@@ -1,21 +1,17 @@
 language: node_js
 node_js:
+- '6'
 - '5'
 - '0.12'
 branches:
   only:
     - master
-after_success:
-- git config user.name "Travis CI"
-- git config user.email "[email protected]"
-- '[ "${TRAVIS_PULL_REQUEST}" = "false" ] && ["${TRAVIS_NODE_VERSION}" -ge "5"] && gulp release-if-changed'
-- '[ "${TRAVIS_PULL_REQUEST}" = "false" ] && ["${TRAVIS_NODE_VERSION}" -ge "5"] && git push --follow-tags "https://chadkillingsworth:${GH_TOKEN}@github.com/ChadKillingsworth/closure-compiler-npm.git" HEAD:master'
 deploy:
   skip_cleanup: true
   provider: npm
   email: [email protected]
   on:
-    node: '5'
+    node: '6'
     branch: master
   api_key:
     secure: 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

build_compiler.js

@@ -0,0 +1,26 @@
+#!/usr/bin/env node
+'use strict';
+
+var spawn = require('child_process').spawnSync;
+var ncp = require('ncp');
+
+var compilerBuild = spawn('ant', ['jar'], {
+  cwd: './compiler',
+  stdio: 'inherit'
+});
+
+if (compilerBuild.status !== 0) {
+  throw new Error('compiler build failed');
+}
+
+ncp('./compiler/build/compiler.jar', './compiler.jar', function (err) {
+  if (err) {
+    throw new Error(err);
+  }
+
+  ncp('./compiler/contrib', './contrib', function(err) {
+    if (err) {
+      throw new Error(err);
+    }
+  });
+});