Add Babel

.gitignore

@@ -2,3 +2,4 @@ node_modules/
 npm-debug.log
 out/
 coverage/
+lib/

.travis.yml

@@ -5,7 +5,7 @@ env:
   global:
     - NINJA=../../../ninja/ninja
 script:
-  npm install && npm test
+  npm install && npm run build && npm test
 node_js:
   - 4
   - 5

Makefile

@@ -1,8 +1,8 @@
 SRC_FILES=
-SRC_FILES+= lib/*.js
-SRC_FILES+= lib/**/*.js
-SRC_FILES+= lib/**/**/*.js
-SRC_FILES+= lib/**/**/**/*.js
+SRC_FILES+= src/*.js
+SRC_FILES+= src/**/*.js
+SRC_FILES+= src/**/**/*.js
+SRC_FILES+= src/**/**/**/*.js
 
 SRC_FILES+= bin/gyp
 SRC_FILES+= test/*.js
@@ -12,14 +12,20 @@ SRC_FILES+= test/**/**/*.js
 BINDIR=./node_modules/.bin
 COVERAGEDIR=./coverage
 
+build:
+	@$(BINDIR)/babel src -d lib
+
+build-watch:
+	@$(BINDIR)/babel -w src -d lib
+
 lint:
 	@$(BINDIR)/eslint $(SRC_FILES)
 
 format:
 	@$(BINDIR)/eslint --fix $(SRC_FILES)
 
 check:
-	@$(BINDIR)/mocha --reporter=spec test/*-test.js
+	@$(BINDIR)/mocha --reporter=spec test/*-test.js --compilers js:babel-register
 
 coverage:
 	@-rm -rf $(COVERAGEDIR)
@@ -29,4 +35,4 @@ coverage:
 
 test: check
 
-.PHONY: lint format check test coverage
+.PHONY: build build-watch lint format check test coverage

package.json

@@ -6,16 +6,25 @@
     "gyp": "bin/gyp"
   },
   "main": "lib/gyp.js",
+  "files": [
+    "lib"
+  ],
   "scripts": {
+    "build": "make build",
+    "watch": "make build-watch",
     "lint": "make lint",
     "format": "make format",
     "test": "make check && make lint",
-    "coverage": "make coverage"
+    "coverage": "make coverage",
+    "prepublish": "npm run build"
   },
   "keywords": [],
   "author": "Fedor Indutny <fedor@indutny.com>",
   "license": "MIT",
   "devDependencies": {
+    "babel-cli": "^6.10.1",
+    "babel-preset-env": "^1.2.2",
+    "babel-register": "^6.9.0",
     "eslint": "^2.12.0",
     "mocha": "^2.5.3",
     "ninja.js": "^1.1.0",
@@ -25,9 +34,21 @@
     "ninja.js": "^1.1.0"
   },
   "dependencies": {
+    "istanbul": "^0.4.5",
     "mkdirp": "^0.5.1",
     "parser-base": "^1.0.0",
-    "yargs-parser": "^2.4.0",
-    "istanbul": "^0.4.5"
+    "yargs-parser": "^2.4.0"
+  },
+  "babel": {
+    "presets": [
+      [
+        "env",
+        {
+          "targets": {
+            "node": 4
+          }
+        }
+      ]
+    ]
   }
 }

lib/gyp/generator/ninja/index.js → src/gyp/generator/ninja/index.js

@@ -708,7 +708,7 @@ NinjaMain.prototype.rulesAndTargets = function rulesAndTargets() {
   main.sectionEnd('targets');
 };
 
-NinjaMain.prototype.defaults = function defaults() {
+NinjaMain.prototype.defaults = function defaults2() {
   const main = this.n;
   const ninjas = this.ninjas;
 
@@ -742,7 +742,7 @@ NinjaMain.prototype.defaults = function defaults() {
   main.finalize();
 };
 
-NinjaMain.prototype.build = function build() {
+NinjaMain.prototype.build = function build2() {
   try {
     // Check that ninja is present
     // NOTE: Windows will attempt to execute `ninja.js`, if won't specify
@@ -772,7 +772,7 @@ NinjaMain.prototype.build = function build() {
     execSync('ninja -C ' + this.configDir, { stdio: 'inherit' });
 };
 
-exports.generateOutput = function generateOutput(targetList, targetDicts, data,
+exports.generateOutput = function generateOutput2(targetList, targetDicts, data,
                                                  params) {
   if (targetList.length === 0)
     throw new Error('No targets to build!');