Add babel build

Author: nezed

.babelrc

@@ -0,0 +1,23 @@
+{
+  "env": {
+    "default": {
+      "presets": [
+        ["@babel/preset-env", {
+          "targets": "node 8.0",
+          "useBuiltIns": "usage",
+          "corejs": 3,
+          "exclude": ["es.promise", "es.string.trim"]
+        }]
+      ]
+    },
+    "legacy": {
+      "presets": [
+        ["@babel/preset-env", {
+          "targets": "node 0.10",
+          "useBuiltIns": "usage",
+          "corejs": 3
+        }]
+      ]
+    },
+  }
+}

.gitignore

@@ -1,3 +1,6 @@
+# Built library assets
+lib*
+
 # Logs
 logs
 *.log
@@ -35,3 +38,9 @@ jspm_packages
 
 # Optional REPL history
 .node_repl_history
+
+# OS-specific files
+.DS_Store
+.Trash*
+.fseventsd
+.Spotlight*

.npmignore

@@ -0,0 +1,3 @@
+*
+!lib*/**/*.js
+!lib*/**/*.js.map

.travis.yml

@@ -1,10 +1,10 @@
 language: node_js
 matrix:
   include:
-#    - node_js: '0.10'
-#      env: _CXXAUTO=1
-#    - node_js: '0.12'
-#      env: _CXXAUTO=1
+    - node_js: '0.10'
+      env: BABEL_ENV=legacy
+    - node_js: '0.12'
+      env: BABEL_ENV=legacy
 #    - node_js: '4'
 #      env: CXX=g++-4.8
     - node_js: '6'
@@ -22,6 +22,7 @@ addons:
 #      - gcc-4.8
 #      - g++-4.8
 before_script:
+  - npm run build
   - sudo apt-key adv --keyserver keyserver.ubuntu.com --recv E0C56BD4
   - echo "deb http://repo.yandex.ru/clickhouse/deb/stable/ main/" | sudo tee -a /etc/apt/sources.list
   - sudo apt-get update -qq
@@ -35,6 +36,5 @@ before_script:
   - (ls -la /var/lib/clickhouse/data/default/ || exit 0)
   - (ls -la /var/lib/clickhouse/metadata/default/ || exit 0)
   - curl -v "http://127.0.0.1:8123/"
-  - npm run legacy-install
-after_script:
+script:
   - npm run report

index.js

@@ -0,0 +1,15 @@
+// Tries to import library built for modern nodejs
+try {
+  var nodeVer = process.version.substr(1).split ('.')
+  if (nodeVer[0] >= 6) {
+    return module.exports = require('lib/clickhouse')
+  }
+} catch (e) {}
+
+// Tries to import library built for legacy nodejs
+try {
+  module.exports = require('lib-legacy/clickhouse')
+} catch (e) {
+  // If all imports are failed it may be dev enviroment
+  module.exports = require('src/clickhouse')
+}

package.json

@@ -7,10 +7,11 @@
     "legacy-install": "node ./src/legacy-support.js",
     "launch-docker-image": "docker run --rm -d -p 8123:8123 --name clickhouse-server yandex/clickhouse-server",
     "stop-docker-image": "docker stop clickhouse-server",
-    "test": "nyc mocha --recursive ./test -R spec",
+    "test": "nyc mocha --require babel-polyfill --require babel-register --recursive ./test -R spec",
     "report": "nyc report --reporter=lcov > coverage.lcov && codecov",
     "simpletest": "mocha --recursive ./test -R spec",
-    "torturetest": "TORTURE=1 mocha -gc --recursive ./test -R spec"
+    "torturetest": "TORTURE=1 mocha -gc --recursive ./test -R spec",
+    "build": "rm -r lib*/ && babel src -d lib --source-maps && BABEL_ENV=legacy babel src -d lib-legacy --source-maps"
   },
   "repository": {
     "type": "git",
@@ -27,8 +28,18 @@
     "url": "https://github.com/apla/node-clickhouse/issues"
   },
   "homepage": "https://github.com/apla/node-clickhouse#readme",
-  "dependencies": {},
+  "dependencies": {
+    "core-js": "3"
+  },
+  "optionalDependencies": {
+    "buffer-indexof-polyfill": "^1.0.1"
+  },
   "devDependencies": {
+    "@babel/cli": "^7.4.4",
+    "@babel/core": "^7.4.5",
+    "@babel/preset-env": "^7.4.5",
+    "babel-polyfill": "^6.26.0",
+    "babel-register": "^6.26.0",
     "bluebird": "^3.5.0",
     "codecov": "^2.2.0",
     "mocha": "^2.5.3",

src/clickhouse.js

@@ -6,11 +6,12 @@ var util = require ('util');
 
 // var debug = require ('debug')('clickhouse');
 
-require ('./legacy-support');
-
 var RecordStream = require ('./streams').RecordStream;
 var JSONStream   = require ('./streams').JSONStream;
 
+// node <6 polyfill
+require('buffer-indexof-polyfill')
+
 var parseError = require ('./parse-error');
 
 function httpResponseHandler (stream, reqParams, reqData, cb, response) {
@@ -183,7 +184,7 @@ function httpRequest (reqParams, reqData, cb) {
 			stream.emit ('error', e);
 		return cb && cb (e);
   });
-  
+
   req.on('timeout', function (e) {
     req.abort();
   })