Require Node.js 8

Closes #12

.gitattributes

@@ -1,2 +1 @@
-* text=auto
-*.js text eol=lf
+* text=auto eol=lf

.travis.yml

@@ -1,5 +1,4 @@
 language: node_js
 node_js:
+  - '10'
   - '8'
-  - '6'
-  - '4'

index.js

@@ -2,12 +2,13 @@
 const sliceAnsi = require('slice-ansi');
 const stringWidth = require('string-width');
 
-module.exports = (input, columns, opts) => {
-	opts = Object.assign({
-		position: 'end'
-	}, opts);
+module.exports = (input, columns, options) => {
+	options = {
+		position: 'end',
+		...options
+	};
 
-	const position = opts.position;
+	const {position} = options;
 	const ellipsis = '…';
 
 	if (typeof input !== 'string') {
@@ -34,10 +35,14 @@ module.exports = (input, columns, opts) => {
 
 	if (position === 'start') {
 		return ellipsis + sliceAnsi(input, length - columns + 1, length);
-	} else if (position === 'middle') {
+	}
+
+	if (position === 'middle') {
 		const half = Math.floor(columns / 2);
 		return sliceAnsi(input, 0, half) + ellipsis + sliceAnsi(input, length - (columns - half) + 1, length);
-	} else if (position === 'end') {
+	}
+
+	if (position === 'end') {
 		return sliceAnsi(input, 0, columns - 1) + ellipsis;
 	}
 

package.json

@@ -10,7 +10,7 @@
 		"url": "sindresorhus.com"
 	},
 	"engines": {
-		"node": ">=4"
+		"node": ">=8"
 	},
 	"scripts": {
 		"test": "xo && ava"
@@ -32,11 +32,11 @@
 		"ansi"
 	],
 	"dependencies": {
-		"slice-ansi": "^1.0.0",
-		"string-width": "^2.0.0"
+		"slice-ansi": "^2.1.0",
+		"string-width": "^4.1.0"
 	},
 	"devDependencies": {
-		"ava": "*",
-		"xo": "*"
+		"ava": "^1.4.1",
+		"xo": "^0.24.0"
 	}
 }

test.js

@@ -1,22 +1,22 @@
 import test from 'ava';
-import m from '.';
+import cliTruncate from '.';
 
-test(t => {
-	t.is(m('unicorn', 4), 'uni…');
-	t.is(m('unicorn', 4, {position: 'end'}), 'uni…');
-	t.is(m('unicorn', 1), '…');
-	t.is(m('unicorn', 0), '');
-	t.is(m('unicorn', -4), '');
-	t.is(m('unicorn', 20), 'unicorn');
-	t.is(m('unicorn', 7), 'unicorn');
-	t.is(m('unicorn', 6), 'unico…');
-	t.is(m('\u001B[31municorn\u001B[39m', 7), '\u001B[31municorn\u001B[39m');
-	t.is(m('\u001B[31municorn\u001B[39m', 1), '…');
-	t.is(m('\u001B[31municorn\u001B[39m', 4), '\u001B[31muni\u001B[39m…');
-	t.is(m('a\uD83C\uDE00b\uD83C\uDE00c', 5), 'a\uD83C\uDE00b\uD83C\uDE00…', 'surrogate pairs');
-	t.is(m('안녕하세요', 3), '안…', 'wide char');
-	t.is(m('unicorn', 5, {position: 'start'}), '…corn');
-	t.is(m('unicorn', 6, {position: 'start'}), '…icorn');
-	t.is(m('unicorn', 5, {position: 'middle'}), 'un…rn');
-	t.is(m('unicorns', 6, {position: 'middle'}), 'uni…ns');
+test('main', t => {
+	t.is(cliTruncate('unicorn', 4), 'uni…');
+	t.is(cliTruncate('unicorn', 4, {position: 'end'}), 'uni…');
+	t.is(cliTruncate('unicorn', 1), '…');
+	t.is(cliTruncate('unicorn', 0), '');
+	t.is(cliTruncate('unicorn', -4), '');
+	t.is(cliTruncate('unicorn', 20), 'unicorn');
+	t.is(cliTruncate('unicorn', 7), 'unicorn');
+	t.is(cliTruncate('unicorn', 6), 'unico…');
+	t.is(cliTruncate('\u001B[31municorn\u001B[39m', 7), '\u001B[31municorn\u001B[39m');
+	t.is(cliTruncate('\u001B[31municorn\u001B[39m', 1), '…');
+	t.is(cliTruncate('\u001B[31municorn\u001B[39m', 4), '\u001B[31muni\u001B[39m…');
+	t.is(cliTruncate('a\uD83C\uDE00b\uD83C\uDE00c', 5), 'a\uD83C\uDE00b\uD83C\uDE00…', 'surrogate pairs');
+	t.is(cliTruncate('안녕하세요', 3), '안…', 'wide char');
+	t.is(cliTruncate('unicorn', 5, {position: 'start'}), '…corn');
+	t.is(cliTruncate('unicorn', 6, {position: 'start'}), '…icorn');
+	t.is(cliTruncate('unicorn', 5, {position: 'middle'}), 'un…rn');
+	t.is(cliTruncate('unicorns', 6, {position: 'middle'}), 'uni…ns');
 });