[BREAKING] ES2015ify - Now requires Node.js >=4

.editorconfig

@@ -10,6 +10,3 @@ insert_final_newline = true
 [{package.json,*.yml}]
 indent_style = space
 indent_size = 2
-
-[*.md]
-trim_trailing_whitespace = false

.travis.yml

@@ -1,6 +1,5 @@
 sudo: false
 language: node_js
 node_js:
-  - 'stable'
-  - '0.12'
-  - '0.10'
+  - '6'
+  - '4'

fixture.js

@@ -1,21 +1,26 @@
 #!/usr/bin/env node
 'use strict';
-var meow = require('./');
+const meow = require('.');
 
-var cli = meow({
+const cli = meow({
 	description: 'Custom description',
-	help: [
-		'Usage',
-		'  foo <input>'
-	]
+	help: `
+		Usage
+		  foo <input>
+	`
 }, {
-	alias: {u: 'unicorn'},
-	default: {meow: 'dog', camelCaseOption: 'foo'}
+	alias: {
+		u: 'unicorn'
+	},
+	default: {
+		meow: 'dog',
+		camelCaseOption: 'foo'
+	}
 });
 
 if (cli.flags.camelCaseOption === 'foo') {
-	Object.keys(cli.flags).forEach(function (el) {
-		console.log(el);
+	Object.keys(cli.flags).forEach(x => {
+		console.log(x);
 	});
 } else {
 	console.log(cli.flags.camelCaseOption);

index.js

@@ -1,27 +1,26 @@
 'use strict';
-var path = require('path');
-var minimist = require('minimist');
-var objectAssign = require('object-assign');
-var camelcaseKeys = require('camelcase-keys');
-var decamelizeKeys = require('decamelize-keys');
-var trimNewlines = require('trim-newlines');
-var redent = require('redent');
-var readPkgUp = require('read-pkg-up');
-var loudRejection = require('loud-rejection');
-var normalizePackageData = require('normalize-package-data');
-
-// get the uncached parent
+const path = require('path');
+const minimist = require('minimist');
+const camelcaseKeys = require('camelcase-keys');
+const decamelizeKeys = require('decamelize-keys');
+const trimNewlines = require('trim-newlines');
+const redent = require('redent');
+const readPkgUp = require('read-pkg-up');
+const loudRejection = require('loud-rejection');
+const normalizePackageData = require('normalize-package-data');
+
+// prevent caching of this module so module.parent is always accurate
 delete require.cache[__filename];
-var parentDir = path.dirname(module.parent.filename);
+const parentDir = path.dirname(module.parent.filename);
 
-module.exports = function (opts, minimistOpts) {
+module.exports = (opts, minimistOpts) => {
 	loudRejection();
 
 	if (Array.isArray(opts) || typeof opts === 'string') {
 		opts = {help: opts};
 	}
 
-	opts = objectAssign({
+	opts = Object.assign({
 		pkg: readPkgUp.sync({
 			cwd: parentDir,
 			normalize: false
@@ -30,11 +29,11 @@ module.exports = function (opts, minimistOpts) {
 		inferType: false
 	}, opts);
 
-	minimistOpts = objectAssign({string: ['_']}, minimistOpts);
+	minimistOpts = Object.assign({string: ['_']}, minimistOpts);
 
 	minimistOpts.default = decamelizeKeys(minimistOpts.default || {}, '-');
 
-	var index = minimistOpts.string.indexOf('_');
+	const index = minimistOpts.string.indexOf('_');
 
 	if (opts.inferType === false && index === -1) {
 		minimistOpts.string.push('_');
@@ -46,22 +45,22 @@ module.exports = function (opts, minimistOpts) {
 		opts.help = opts.help.join('\n');
 	}
 
-	var pkg = typeof opts.pkg === 'string' ? require(path.join(parentDir, opts.pkg)) : opts.pkg;
-	var argv = minimist(opts.argv, minimistOpts);
-	var help = redent(trimNewlines(opts.help || ''), 2);
+	const pkg = typeof opts.pkg === 'string' ? require(path.join(parentDir, opts.pkg)) : opts.pkg;
+	const argv = minimist(opts.argv, minimistOpts);
+	let help = redent(trimNewlines((opts.help || '').replace(/\t+\n*$/, '')), 2);
 
 	normalizePackageData(pkg);
 
 	process.title = pkg.bin ? Object.keys(pkg.bin)[0] : pkg.name;
 
-	var description = opts.description;
+	let description = opts.description;
 	if (!description && description !== false) {
 		description = pkg.description;
 	}
 
-	help = (description ? '\n  ' + description + '\n' : '') + (help ? '\n' + help + '\n' : '\n');
+	help = (description ? `\n  ${description}\n` : '') + (help ? `\n${help}\n` : '\n');
 
-	var showHelp = function (code) {
+	const showHelp = code => {
 		console.log(help);
 		process.exit(code || 0);
 	};
@@ -75,14 +74,16 @@ module.exports = function (opts, minimistOpts) {
 		showHelp();
 	}
 
-	var _ = argv._;
+	const input = argv._;
 	delete argv._;
 
+	const flags = camelcaseKeys(argv, {exclude: ['--', /^\w$/]});
+
 	return {
-		input: _,
-		flags: camelcaseKeys(argv, {exclude: ['--', /^\w$/]}),
-		pkg: pkg,
-		help: help,
-		showHelp: showHelp
+		input,
+		flags,
+		pkg,
+		help,
+		showHelp
 	};
 };

package.json

@@ -10,7 +10,7 @@
     "url": "sindresorhus.com"
   },
   "engines": {
-    "node": ">=0.10.0"
+    "node": ">=4"
   },
   "scripts": {
     "test": "xo && ava"
@@ -43,18 +43,18 @@
     "loud-rejection": "^1.0.0",
     "minimist": "^1.1.3",
     "normalize-package-data": "^2.3.4",
-    "object-assign": "^4.0.1",
     "read-pkg-up": "^1.0.1",
-    "redent": "^1.0.0",
+    "redent": "^2.0.0",
     "trim-newlines": "^1.0.0"
   },
   "devDependencies": {
     "ava": "*",
-    "execa": "^0.1.1",
-    "indent-string": "^2.1.0",
+    "execa": "^0.4.0",
+    "indent-string": "^3.0.0",
     "xo": "*"
   },
   "xo": {
+    "esnext": true,
     "rules": {
       "xo/no-process-exit": "off"
     }

readme.md

@@ -32,14 +32,14 @@ $ ./foo-app.js unicorns --rainbow
 #!/usr/bin/env node
 'use strict';
 const meow = require('meow');
-const foo = require('./');
+const foo = require('.');
 
 const cli = meow(`
 	Usage
 	  $ foo <input>
 
 	Options
-	  -r, --rainbow  Include a rainbow
+	  --rainbow, -r  Include a rainbow
 
 	Examples
 	  $ foo unicorns --rainbow
@@ -65,38 +65,38 @@ foo(cli.input[0], cli.flags);
 
 ### meow(options, [minimistOptions])
 
-Returns an object with:
+Returns an `Object` with:
 
-- `input` *(array)* - Non-flag arguments
-- `flags` *(object)* - Flags converted to camelCase
-- `pkg` *(object)* - The `package.json` object
+- `input` *(Array)* - Non-flag arguments
+- `flags` *(Object)* - Flags converted to camelCase
+- `pkg` *(Object)* - The `package.json` object
 - `help` *(string)* - The help text used with `--help`
-- `showHelp([code=0])` *(function)* - Show the help text and exit with `code`
+- `showHelp([code=0])` *(Function)* - Show the help text and exit with `code`
 
 #### options
 
-Type: `object`, `array`, `string`
+Type: `Object` `Array` `string`
 
 Can either be a string/array that is the `help` or an options object.
 
 ##### description
 
-Type: `string`, `boolean`
+Type: `string` `boolean`<br>
 Default: The package.json `"description"` property
 
-A description to show above the help text.
+Description to show above the help text.
 
 Set it to `false` to disable it altogether.
 
 ##### help
 
-Type: `string`, `boolean`
+Type: `string` `boolean`
 
 The help text you want shown.
 
 The input is reindented and starting/ending newlines are trimmed which means you can use a [template literal](https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/template_strings) without having to care about using the correct amount of indent.
 
-<del>If it's an array each item will be a line.</del>  
+<del>If it's an array each item will be a line.</del><br>
 *(Still supported, but you should use a template literal instead.)*
 
 The description will be shown above your help text automatically.
@@ -105,7 +105,7 @@ Set it to `false` to disable it altogether.
 
 ##### version
 
-Type: `string`, `boolean`  
+Type: `string` `boolean`<br>
 Default: The package.json `"version"` property
 
 Set a custom version output.
@@ -114,21 +114,21 @@ Set it to `false` to disable it altogether.
 
 ##### pkg
 
-Type: `string`, `object`  
+Type: `string` `Object`<br>
 Default: Closest package.json upwards
 
-Relative path to package.json or as an object.
+Relative path to package.json or as an `Object`.
 
 ##### argv
 
-Type: `array`  
+Type: `Array`<br>
 Default: `process.argv.slice(2)`
 
 Custom arguments object.
 
 ##### inferType
 
-Type: `boolean`  
+Type: `boolean`<br>
 Default: `false`
 
 Infer the argument type.
@@ -137,7 +137,7 @@ By default, the argument `5` in `$ foo 5` becomes a string. Enabling this would
 
 #### minimistOptions
 
-Type: `object`  
+Type: `Object`<br>
 Default: `{}`
 
 Minimist [options](https://github.com/substack/minimist#var-argv--parseargsargs-opts).
@@ -156,13 +156,13 @@ See [`chalk`](https://github.com/chalk/chalk) if you want to colorize the termin
 
 See [`get-stdin`](https://github.com/sindresorhus/get-stdin) if you want to accept input from stdin.
 
-See [`update-notifier`](https://github.com/yeoman/update-notifier) if you want update notifications.
+See [`conf`](https://github.com/sindresorhus/conf) if you need to persist some data.
 
-See [`configstore`](https://github.com/yeoman/configstore) if you need to persist some data.
+See [`update-notifier`](https://github.com/yeoman/update-notifier) if you want update notifications.
 
 [More useful CLI utilities.](https://github.com/sindresorhus/awesome-nodejs#command-line-utilities)
 
 
 ## License
 
-MIT © [Sindre Sorhus](http://sindresorhus.com)
+MIT © [Sindre Sorhus](https://sindresorhus.com)