Replace lodash _.join with native array.join

lib/classes/PluginManager.js

@@ -33,9 +33,8 @@ const requireServicePlugin = (servicePath, pluginPath, localPluginsPath) => {
  */
 class TerminateHookChain extends Error {
   constructor(commands) {
-    const commandChain = _.join(commands, ':');
+    const commandChain = commands.join(':');
     const message = `Terminating ${commandChain}`;
-
     super(message);
     this.message = message;
     this.name = 'TerminateHookChain';
@@ -367,7 +366,7 @@ class PluginManager {
           return;
         }
         if (alias.command) {
-          const commandPath = _.join(_.split(alias.command, ':'), '.commands.');
+          const commandPath = _.split(alias.command, ':').join('.commands.');
           _.set(target, name, _.get(this.commands, commandPath));
         } else {
           target[name] = target[name] || {};
@@ -480,7 +479,7 @@ class PluginManager {
     const hooks = this.getHooks(events);
 
     if (process.env.SLS_DEBUG) {
-      this.serverless.cli.log(`Invoke ${_.join(commandsArray, ':')}`);
+      this.serverless.cli.log(`Invoke ${commandsArray.join(':')}`);
       if (hooks.length === 0) {
         const warningMessage = 'Warning: The command you entered did not catch on any hooks';
         this.serverless.cli.log(warningMessage);
@@ -491,7 +490,7 @@ class PluginManager {
       TerminateHookChain,
       () => {
         if (process.env.SLS_DEBUG) {
-          this.serverless.cli.log(`Terminate ${_.join(commandsArray, ':')}`);
+          this.serverless.cli.log(`Terminate ${commandsArray.join(':')}`);
         }
         return BbPromise.resolve();
       }

lib/plugins/aws/provider/awsProvider.js

@@ -255,15 +255,12 @@ class AwsProvider {
                 const backOff = BASE_BACKOFF + jitter;
 
                 that.serverless.cli.log(
-                  _.join(
-                    [
-                      `Recoverable error occurred (${e.message}), sleeping for ~${Math.round(
-                        backOff / 1000
-                      )} seconds.`,
-                      `Try ${nextTryNum} of ${MAX_TRIES}`,
-                    ],
-                    ' '
-                  )
+                  [
+                    `Recoverable error occurred (${e.message}), sleeping for ~${Math.round(
+                      backOff / 1000
+                    )} seconds.`,
+                    `Try ${nextTryNum} of ${MAX_TRIES}`,
+                  ].join(' ')
                 );
                 setTimeout(doCall, backOff, nextTryNum);
               } else {

lib/utils/log/fileLog.js

@@ -1,13 +1,12 @@
 'use strict';
 
-const _ = require('lodash');
 const fs = require('fs');
 const path = require('path');
 
 const fileLog = function(...args) {
   // TODO BRN: This does not guarantee order, is not multi process safe,
   // TODO BRN: and is not guaranteed to complete before exit.
-  fs.appendFileSync(path.join(process.cwd(), 'sls.log'), `${_.join(args)}\n`);
+  fs.appendFileSync(path.join(process.cwd(), 'sls.log'), `${args.join()}\n`);
 };
 
 module.exports = fileLog;