Require Node.js 8

.gitattributes

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

.travis.yml

@@ -2,4 +2,3 @@ language: node_js
 node_js:
   - '10'
   - '8'
-  - '6'

appveyor.yml

@@ -1,6 +1,6 @@
 environment:
   matrix:
-    - nodejs_version: '8'
+    - nodejs_version: '10'
 install:
   - ps: Install-Product node $env:nodejs_version
   - npm install --global npm@latest

index.js

@@ -1,60 +1,60 @@
 'use strict';
+const util = require('util');
 const path = require('path');
 const childProcess = require('child_process');
-const pify = require('pify');
 
 const TEN_MEGABYTES = 1000 * 1000 * 10;
+const execFile = util.promisify(childProcess.execFile);
 
-function win() {
+const windows = async () => {
 	// Source: https://github.com/MarkTiedemann/fastlist
 	const bin = path.join(__dirname, 'fastlist.exe');
 
-	return pify(childProcess.execFile)(bin, {maxBuffer: TEN_MEGABYTES})
-		.then(stdout =>
-			stdout.trim()
-				.split('\r\n')
-				.map(line => line.split('\t'))
-				.map(([name, pid, ppid]) => ({
-					name,
-					pid: Number.parseInt(pid, 10),
-					ppid: Number.parseInt(ppid, 10)
-				}))
-		);
-}
-
-function def(options = {}) {
-	const ret = {};
+	const {stdout} = await execFile(bin, {maxBuffer: TEN_MEGABYTES});
+
+	return stdout
+		.trim()
+		.split('\r\n')
+		.map(line => line.split('\t'))
+		.map(([name, pid, ppid]) => ({
+			name,
+			pid: Number.parseInt(pid, 10),
+			ppid: Number.parseInt(ppid, 10)
+		}));
+};
+
+const main = async (options = {}) => {
 	const flags = (options.all === false ? '' : 'a') + 'wwxo';
+	const ret = {};
 
-	return Promise.all(['comm', 'args', 'ppid', '%cpu', '%mem'].map(cmd => {
-		return pify(childProcess.execFile)('ps', [flags, `pid,${cmd}`], {maxBuffer: TEN_MEGABYTES}).then(stdout => {
-			for (let line of stdout.trim().split('\n').slice(1)) {
-				line = line.trim();
-				const [pid] = line.split(' ', 1);
-				const val = line.slice(pid.length + 1).trim();
+	await Promise.all(['comm', 'args', 'ppid', '%cpu', '%mem'].map(async cmd => {
+		const {stdout} = await execFile('ps', [flags, `pid,${cmd}`], {maxBuffer: TEN_MEGABYTES});
 
-				if (ret[pid] === undefined) {
-					ret[pid] = {};
-				}
+		for (let line of stdout.trim().split('\n').slice(1)) {
+			line = line.trim();
+			const [pid] = line.split(' ', 1);
+			const val = line.slice(pid.length + 1).trim();
 
-				ret[pid][cmd] = val;
+			if (ret[pid] === undefined) {
+				ret[pid] = {};
 			}
-		});
-	})).then(() => {
-		// Filter out inconsistencies as there might be race
-		// issues due to differences in `ps` between the spawns
-		// TODO: Use `Object.entries` when targeting Node.js 8
-		return Object.keys(ret).filter(x => ret[x].comm && ret[x].args && ret[x].ppid && ret[x]['%cpu'] && ret[x]['%mem']).map(x => {
-			return {
-				pid: Number.parseInt(x, 10),
-				name: path.basename(ret[x].comm),
-				cmd: ret[x].args,
-				ppid: Number.parseInt(ret[x].ppid, 10),
-				cpu: Number.parseFloat(ret[x]['%cpu']),
-				memory: Number.parseFloat(ret[x]['%mem'])
-			};
-		});
-	});
-}
-
-module.exports = process.platform === 'win32' ? win : def;
+
+			ret[pid][cmd] = val;
+		}
+	}));
+
+	// Filter out inconsistencies as there might be race
+	// issues due to differences in `ps` between the spawns
+	return Object.entries(ret)
+		.filter(([, value]) => value.comm && value.args && value.ppid && value['%cpu'] && value['%mem'])
+		.map(([key, value]) => ({
+			pid: Number.parseInt(key, 10),
+			name: path.basename(value.comm),
+			cmd: value.args,
+			ppid: Number.parseInt(value.ppid, 10),
+			cpu: Number.parseFloat(value['%cpu']),
+			memory: Number.parseFloat(value['%mem'])
+		}));
+};
+
+module.exports = process.platform === 'win32' ? windows : main;

package.json

@@ -10,13 +10,14 @@
 		"url": "sindresorhus.com"
 	},
 	"engines": {
-		"node": ">=6"
+		"node": ">=8"
 	},
 	"scripts": {
 		"test": "xo && ava"
 	},
 	"files": [
-		"index.js"
+		"index.js",
+		"fastlist.exe"
 	],
 	"keywords": [
 		"ps",
@@ -27,11 +28,8 @@
 		"running",
 		"tasklist"
 	],
-	"dependencies": {
-		"pify": "^4.0.0"
-	},
 	"devDependencies": {
-		"ava": "*",
-		"xo": "*"
+		"ava": "^0.25.0",
+		"xo": "^0.23.0"
 	}
 }

test.js

@@ -1,11 +1,11 @@
 import test from 'ava';
-import m from '.';
+import psList from '.';
 
 const isWindows = process.platform === 'win32';
 
 test('main', async t => {
 	const binName = isWindows ? 'node.exe' : 'ava';
-	const list = await m();
+	const list = await psList();
 
 	t.true(list.some(x => x.name.includes(binName)));
 	t.true(