Adds mapping to setting.sourceName

Author: ladannasserian

lib/index.js

@@ -37,6 +37,7 @@ var Mixpanel = module.exports = integration('Mixpanel')
   .option('trackAllPages', false)
   .option('trackNamedPages', false)
   .option('trackCategorizedPages', false)
+  .option('sourceName', '')
   .tag('<script src="//cdn.mxpnl.com/libs/mixpanel-2-latest.min.js">');
 
 /**
@@ -184,7 +185,7 @@ Mixpanel.prototype.identify = function(identify) {
     var trait = traits[key];
     if (Array.isArray(trait) && trait.length > 0) {
       traitsToUnion[key] = trait;
-      // since mixpanel doesn't offer a union method for super properties we have to do it manually by retrieving the existing list super property 
+      // since mixpanel doesn't offer a union method for super properties we have to do it manually by retrieving the existing list super property
       // from mixpanel and manually unioning to it ourselves
       var existingTrait = window.mixpanel.get_property(key);
       if (existingTrait && Array.isArray(existingTrait)) {
@@ -235,6 +236,11 @@ Mixpanel.prototype.track = function(track) {
   var revenue = track.revenue();
   // Don't map traits, clients should use identify instead.
   var superProps = pick(this.options.superProperties, props);
+  var sourceName = this.options.sourceName;
+
+  if (sourceName) {
+    props.segment_source_name = sourceName;
+  }
 
   // delete mixpanel's reserved properties, so they don't conflict
   delete props.distinct_id;
@@ -382,7 +388,7 @@ function extendTraits(arr) {
  *
  * @api private
  * @param {Object} props
- * @example 
+ * @example
  * input: {products: [{sku: 32, revenue: 99}, {sku:2, revenue: 103}]}
  * output: {products_skus: [32, 2], products_revenues: [99, 103]}
  */
@@ -421,7 +427,7 @@ function invertObjectArray(propName, arr) {
         continue;
       }
       var attrKey = propName+'_'+key+'s';  // e.g. products_skus
-      
+
       // append to list if it exists or create new one if not
       if (attrKey in invertedArrays) {
         invertedArrays[attrKey].push(elem[key]);
@@ -464,4 +470,4 @@ function unionArrays(x, y) {
     obj[y[i]] = y[i];
   }
   return Object.keys(obj);
-}
+}