Releasing ES6 node modules to npm

.gitignore

build/
node_modules/

README.md

My approach for releasing a node module to npm that uses ES6 syntax.

This uses babel to generate a non-ES6 version of the source when a new version is released, then only publishes the built source.

$ npm version <newversion> -m "Releasing %s"
$ npm publish

build

#!/bin/bash -e

babel=./node_modules/.bin/babel

# Clean old build
rm -rf build/

# Transpile ES6
$babel index.js -d build/ --presets babel-preset-es2015

# Copy package & README
cp README.md build/
node -p 'p=require("./package");p.scripts=p.devDependencies=undefined;JSON.stringify(p,null,2)' > build/package.json

package.json

{
  "main": "index.js",
  "files": ["build/"],
  "scripts": {
    "test": "karma start --single-run",
    "build": "./build",
    "preversion": "npm test",
    "postversion": "git push && git push --tags",
    "prepublish": "npm run build"
  },
  "devDependencies": {
    "babel": "^6.5.2",
    "babel-cli": "^6.9.0",
    "babel-core": "^6.9.0",
    "babel-loader": "^6.2.4",
    "babel-preset-es2015": "^6.9.0",
    "karma": "^0.13.22",
    "karma-cli": "^1.0.0"
  }
}