Turn default commands into constants ✍️

Author: pirelenito

lib/index.js

@@ -1,14 +1,14 @@
 var buildFile = require('./build-file')
 var runGitCommand = require('./helpers/run-git-command')
 
-var commithashCommand = 'rev-parse HEAD'
-var versionCommand = 'describe --always'
+var COMMITHASH_COMMAND = 'rev-parse HEAD'
+var VERSION_COMMAND = 'describe --always'
 
 function GitRevisionPlugin (options) {
   this.gitWorkTree = options && options.gitWorkTree
   this.lightweightTags = options && options.lightweightTags || false
-  this.commithashCommand = options && options.commithashCommand || commithashCommand
-  this.versionCommand = options && options.versionCommand || versionCommand
+  this.commithashCommand = options && options.commithashCommand || COMMITHASH_COMMAND
+  this.versionCommand = options && options.versionCommand || VERSION_COMMAND
 }
 
 GitRevisionPlugin.prototype.apply = function (compiler) {