Added pluginPath based on npm

lib/plugin.js

@@ -13,7 +13,7 @@ module.exports = {
 
 /**
  * Homebridge Plugin.
- * 
+ *
  * Allows for discovering and loading installed Homebridge plugins.
  */
 
@@ -28,39 +28,39 @@ Plugin.prototype.name = function() {
 
 Plugin.prototype.load = function(options) {
   options = options || {};
-  
+
   // does this plugin exist at all?
   if (!fs.existsSync(this.pluginPath)) {
     throw new Error("Plugin " + this.pluginPath + " was not found. Make sure the module '" + this.pluginPath + "' is installed.");
   }
-  
+
   // attempt to load package.json
   var pjson = Plugin.loadPackageJSON(this.pluginPath);
-    
+
   // very temporary fix for first wave of plugins
   if (pjson.peerDepdendencies && (!pjson.engines || !pjson.engines.homebridge)) {
     var engines = pjson.engines || {}
     engines.homebridge = pjson.peerDepdendencies.homebridge;
     pjson.engines = engines;
   }
-  
+
   // pluck out the HomeBridge version requirement
   if (!pjson.engines || !pjson.engines.homebridge) {
     throw new Error("Plugin " + this.pluginPath + " does not contain the 'homebridge' package in 'engines'.");
   }
-  
+
   var versionRequired = pjson.engines.homebridge;
 
   // make sure the version is satisfied by the currently running version of HomeBridge
   if (!semver.satisfies(version, versionRequired)) {
     throw new Error("Plugin " + this.pluginPath + " requires a HomeBridge version of " + versionRequired + " which does not satisfy the current HomeBridge version of " + version + ". You may need to upgrade your installation of HomeBridge.");
   }
-  
+
   // figure out the main module - index.js unless otherwise specified
   var main = pjson.main || "./index.js";
 
   var mainPath = path.join(this.pluginPath, main);
-  
+
   // try to require() it and grab the exported initialization hook
   this.initializer = require(mainPath);
 }
@@ -69,11 +69,11 @@ Plugin.loadPackageJSON = function(pluginPath) {
   // check for a package.json
   var pjsonPath = path.join(pluginPath, "package.json");
   var pjson = null;
-  
+
   if (!fs.existsSync(pjsonPath)) {
     throw new Error("Plugin " + pluginPath + " does not contain a package.json.");
   }
-  
+
   try {
     // attempt to parse package.json
     pjson = JSON.parse(fs.readFileSync(pjsonPath));
@@ -81,7 +81,7 @@ Plugin.loadPackageJSON = function(pluginPath) {
   catch (err) {
     throw new Error("Plugin " + pluginPath + " contains an invalid package.json. Error: " + err);
   }
-  
+
   // make sure the name is prefixed with 'homebridge-'
   if (!pjson.name || pjson.name.indexOf('homebridge-') != 0) {
     throw new Error("Plugin " + pluginPath + " does not have a package name that begins with 'homebridge-'.");
@@ -91,7 +91,7 @@ Plugin.loadPackageJSON = function(pluginPath) {
   if (!pjson.keywords || pjson.keywords.indexOf("homebridge-plugin") == -1) {
     throw new Error("Plugin " + pluginPath + " package.json does not contain the keyword 'homebridge-plugin'.");
   }
-  
+
   return pjson;
 }
 
@@ -119,9 +119,10 @@ Plugin.getDefaultPaths = function() {
     } else {
       paths.push('/usr/local/lib/node_modules');
       paths.push('/usr/lib/node_modules');
+      const exec = require('child_process').execSync
+      paths.push(exec('/bin/echo -n "$(npm -g prefix)/lib/node_modules"').toString('utf8'));
     }
   }
-
   return paths;
 }
 
@@ -138,17 +139,17 @@ Plugin.installed = function() {
   var plugins = [];
   var pluginsByName = {}; // don't add duplicate plugins
   var searchedPaths = {}; // don't search the same paths twice
-  
+
   // search for plugins among all known paths, in order
   for (var index in Plugin.paths) {
     var requirePath = Plugin.paths[index];
-    
+
     // did we already search this path?
     if (searchedPaths[requirePath])
       continue;
-      
+
     searchedPaths[requirePath] = true;
-    
+
     // just because this path is in require.main.paths doesn't mean it necessarily exists!
     if (!fs.existsSync(requirePath))
       continue;
@@ -158,17 +159,17 @@ Plugin.installed = function() {
     // does this path point inside a single plugin and not a directory containing plugins?
     if (fs.existsSync(path.join(requirePath, "package.json")))
       names = [""];
-    
+
     // read through each directory in this node_modules folder
     for (var index2 in names) {
       var name = names[index2];
-    
+
       // reconstruct full path
       var pluginPath = path.join(requirePath, name);
-    
+
       // we only care about directories
       if (!fs.statSync(pluginPath).isDirectory()) continue;
-      
+
       // does this module contain a package.json?
       var pjson;
       try {
@@ -180,14 +181,14 @@ Plugin.installed = function() {
         if (!name || name.indexOf('homebridge-') == 0) {
           log.warn(err.message);
         }
-        
+
         // skip this module
         continue;
       }
-      
+
       // get actual name if this path points inside a single plugin
       if (!name) name = pjson.name;
-      
+
       // add it to the return list
       if (!pluginsByName[name]) {
         pluginsByName[name] = pluginPath;
@@ -198,6 +199,6 @@ Plugin.installed = function() {
       }
     }
   }
-  
+
   return plugins;
 }