chore: lint bin/_metalsmith

bin/_metalsmith

@@ -6,11 +6,11 @@
  * Dependencies.
  */
 
-var chalk = require('chalk')
-var exists = require('fs').existsSync
-var Metalsmith = require('..')
-var program = require('commander')
-var resolve = require('path').resolve
+const chalk = require('chalk')
+const exists = require('fs').existsSync
+const Metalsmith = require('..')
+const program = require('commander')
+const resolve = require('path').resolve
 
 /**
  * Usage.
@@ -45,13 +45,14 @@ program.parse(process.argv)
  * Config.
  */
 
-var dir = process.cwd()
-var config = program.config
-var path = resolve(dir, config)
+const dir = process.cwd()
+const config = program.config
+const path = resolve(dir, config)
 if (!exists(path)) fatal('could not find a ' + config + ' configuration file.')
 
+let json
 try {
-  var json = require(path)
+  json = require(path)
 } catch (e) {
   fatal('it seems like ' + config + ' is malformed.')
 }
@@ -60,7 +61,7 @@ try {
  * Metalsmith.
  */
 
-var metalsmith = new Metalsmith(dir)
+const metalsmith = new Metalsmith(dir)
 if (json.source) metalsmith.source(json.source)
 if (json.destination) metalsmith.destination(json.destination)
 if (json.concurrency) metalsmith.concurrency(json.concurrency)
@@ -74,13 +75,13 @@ if (json.ignore != null) metalsmith.ignore(json.ignore)
  */
 
 normalize(json.plugins).forEach(function(plugin){
-  for (var name in plugin) {
-    var opts = plugin[name]
-    var mod
+  for (const name in plugin) {
+    const opts = plugin[name]
+    let mod
 
     try {
-      var local = resolve(dir, name)
-      var npm = resolve(dir, 'node_modules', name)
+      const local = resolve(dir, name)
+      const npm = resolve(dir, 'node_modules', name)
 
       if (exists(local) || exists(local + '.js')) {
         mod = require(local)
@@ -149,10 +150,10 @@ function log(message){
 
 function normalize(obj){
   if (obj instanceof Array) return obj
-  var ret = []
+  const ret = []
 
-  for (var key in obj) {
-    var plugin = {}
+  for (const key in obj) {
+    const plugin = {}
     plugin[key] = obj[key]
     ret.push(plugin)
   }