💥 Drop support for Node.js <6

Migration Guide:

Upgrade to Node.js 6.0.0 or newer.

Author: LinusU

README.md

@@ -7,23 +7,23 @@ A node.js library to control the systems output volume
 The library currently has support for four simple async functions. The volume is specified as an integer between 0 and 100 (inc.).
 
 ```javascript
-var loudness = require('loudness');
+const loudness = require('loudness')
 
-loudness.setVolume(45, function (err) {
+loudness.setVolume(45, (err) => {
     // Done
-});
+})
 
-loudness.getVolume(function (err, vol) {
+loudness.getVolume((err, vol) => {
     // vol = 45
-});
+})
 
-loudness.setMuted(false, function (err) {
+loudness.setMuted(false, (err) => {
     // Done
-});
+})
 
-loudness.getMuted(function (err, mute) {
+loudness.getMuted((err, mute) => {
     // mute = false
-});
+})
 ```
 
 ## OS Support

impl/darwin.js

@@ -1,9 +1,9 @@
-var spawn = require('child_process').spawn
+const { spawn } = require('child_process')
 
-var osascript = function (cmd, cb) {
-  var ret = ''
-  var err = null
-  var p = spawn('osascript', ['-e', cmd])
+const osascript = function (cmd, cb) {
+  let ret = ''
+  let err = null
+  const p = spawn('osascript', ['-e', cmd])
 
   p.stdout.on('data', function (data) {
     ret += data

impl/linux.js

@@ -1,9 +1,9 @@
-var spawn = require('child_process').spawn
+const { spawn } = require('child_process')
 
-var amixer = function (args, cb) {
-  var ret = ''
-  var err = null
-  var p = spawn('amixer', args)
+const amixer = function (args, cb) {
+  let ret = ''
+  let err = null
+  const p = spawn('amixer', args)
 
   p.stdout.on('data', function (data) {
     ret += data
@@ -18,15 +18,15 @@ var amixer = function (args, cb) {
   })
 }
 
-var reDefaultDevice = /Simple mixer control '([a-z0-9 -]+)',[0-9]+/i
-var defaultDeviceCache = null
-var defaultDevice = function (cb) {
+const reDefaultDevice = /Simple mixer control '([a-z0-9 -]+)',[0-9]+/i
+let defaultDeviceCache = null
+const defaultDevice = function (cb) {
   if (defaultDeviceCache === null) {
     amixer([], function (err, data) {
       if (err) {
         cb(err)
       } else {
-        var res = reDefaultDevice.exec(data)
+        let res = reDefaultDevice.exec(data)
         if (res === null) {
           cb(new Error('Alsa Mixer Error: failed to parse output'))
         } else {
@@ -40,8 +40,8 @@ var defaultDevice = function (cb) {
   }
 }
 
-var reInfo = /[a-z][a-z ]*: Playback [0-9-]+ \[([0-9]+)%\] (?:[[0-9.-]+dB\] )?\[(on|off)\]/i
-var getInfo = function (cb) {
+const reInfo = /[a-z][a-z ]*: Playback [0-9-]+ \[([0-9]+)%\] (?:[[0-9.-]+dB\] )?\[(on|off)\]/i
+const getInfo = function (cb) {
   defaultDevice(function (err, dev) {
     if (err) {
       cb(err)
@@ -50,7 +50,7 @@ var getInfo = function (cb) {
         if (err) {
           cb(err)
         } else {
-          var res = reInfo.exec(data)
+          let res = reInfo.exec(data)
           if (res === null) {
             cb(new Error('Alsa Mixer Error: failed to parse output'))
           } else {

impl/windows/index.js

@@ -1,15 +1,15 @@
-var spawn = require('child_process').spawn
-var path = require('path')
+const { spawn } = require('child_process')
+const path = require('path')
 
-var executable = path.join(__dirname, 'adjust_get_current_system_volume_vista_plus.exe')
+const executable = path.join(__dirname, 'adjust_get_current_system_volume_vista_plus.exe')
 
-var runProgram = function (args, done) {
+const runProgram = function (args, done) {
   args = args === '' ? [] : args.toString().split(' ')
   done = done || function () {}
 
-  var ret = ''
-  var err = null
-  var p = spawn(executable, args)
+  let ret = ''
+  let err = null
+  const p = spawn(executable, args)
 
   p.stdout.on('data', function (data) {
     ret += data
@@ -26,7 +26,7 @@ var runProgram = function (args, done) {
   })
 }
 
-var getVolumeInfo = function (done) {
+const getVolumeInfo = function (done) {
   done = done || function () {}
 
   runProgram('', function (err, strArgs) {
@@ -42,7 +42,7 @@ var getVolumeInfo = function (done) {
   })
 }
 
-var getVolume = function (done) {
+module.exports.getVolume = function (done) {
   done = done || function () {}
 
   getVolumeInfo(function (err, info) {
@@ -52,7 +52,7 @@ var getVolume = function (done) {
   })
 }
 
-var setVolume = function (val, done) {
+module.exports.setVolume = function (val, done) {
   val = val || 0
   done = done || function () {}
 
@@ -63,7 +63,7 @@ var setVolume = function (val, done) {
   })
 }
 
-var getMuted = function (done) {
+module.exports.getMuted = function (done) {
   done = done || function () {}
 
   getVolumeInfo(function (err, info) {
@@ -73,7 +73,7 @@ var getMuted = function (done) {
   })
 }
 
-var setMuted = function (val, done) {
+module.exports.setMuted = function (val, done) {
   val = val ? 'mute' : 'unmute'
   done = done || function () {}
 
@@ -83,10 +83,3 @@ var setMuted = function (val, done) {
     return done(null)
   })
 }
-
-module.exports = {
-  getVolume: getVolume,
-  setVolume: setVolume,
-  getMuted: getMuted,
-  setMuted: setMuted
-}

index.js

@@ -1,5 +1,5 @@
-var os = require('os')
-var impl = null
+const os = require('os')
+let impl = null
 
 switch (os.type()) {
   case 'Darwin':
@@ -16,16 +16,16 @@ switch (os.type()) {
 }
 
 module.exports = {
-  setVolume: function (volume, cb) {
+  setVolume (volume, cb) {
     impl.setVolume(volume, cb)
   },
-  getVolume: function (cb) {
+  getVolume (cb) {
     impl.getVolume(cb)
   },
-  setMuted: function (muted, cb) {
+  setMuted (muted, cb) {
     impl.setMuted(muted, cb)
   },
-  getMuted: function (cb) {
+  getMuted (cb) {
     impl.getMuted(cb)
   }
 }