Merge branch 'commit-graphs-by-email' into 'master'

Group project contributions by both name and email.

See https://twitter.com/Argorain/status/598751646143897600.

We now group by both name and email, so that "Douwe Maan - douwe@gitlab.com", "Douwe Maan - me@douwe.me" and "Douwe M. - me@douwe.me" are all combined into one graph.

Fixes internal issue https://dev.gitlab.org/gitlab/gitlabhq/issues/2328.

See merge request !700

CHANGELOG

@@ -20,6 +20,7 @@ v 7.12.0 (unreleased)
   - Consistently refer to MRs as either Accepted or Rejected.
   - Add Accepted and Rejected tabs to MR lists.
   - Prefix EmailsOnPush email subject with `[Git]`.
+  - Group project contributions by both name and email. 
 
 v 7.11.2
   - no changes

app/assets/javascripts/stat_graph_contributors_util.js.coffee

@@ -2,11 +2,15 @@ window.ContributorsStatGraphUtil =
   parse_log: (log) ->
     total = {}
     by_author = {}
+    by_email = {}
     for entry in log
       @add_date(entry.date, total) unless total[entry.date]?
-      @add_author(entry, by_author) unless by_author[entry.author_name]?
-      @add_date(entry.date, by_author[entry.author_name]) unless by_author[entry.author_name][entry.date]
-      @store_data(entry, total[entry.date], by_author[entry.author_name][entry.date])
+
+      data = by_author[entry.author_name] #|| by_email[entry.author_email]      
+      data ?= @add_author(entry, by_author, by_email)
+
+      @add_date(entry.date, data) unless data[entry.date]
+      @store_data(entry, total[entry.date], data[entry.date])
     total = _.toArray(total)
     by_author = _.toArray(by_author)
     total: total, by_author: by_author
@@ -15,10 +19,12 @@ window.ContributorsStatGraphUtil =
     collection[date] = {}
     collection[date].date = date
 
-  add_author: (author, by_author) ->
-    by_author[author.author_name] = {}
-    by_author[author.author_name].author_name = author.author_name
-    by_author[author.author_name].author_email = author.author_email
+  add_author: (author, by_author, by_email) ->
+    data = {}
+    data.author_name = author.author_name
+    data.author_email = author.author_email
+    by_author[author.author_name] = data
+    by_email[author.author_email] = data
 
   store_data: (entry, total, by_author) ->
     @store_commits(total, by_author)

spec/javascripts/stat_graph_contributors_util_spec.js

@@ -118,9 +118,11 @@ describe("ContributorsStatGraphUtil", function () {
   describe("#add_author", function () {
     it("adds an author field to the collection", function () {
       var fake_author = { author_name: "Author", author_email: 'fake@email.com' }
-      var fake_collection = {}
-      ContributorsStatGraphUtil.add_author(fake_author, fake_collection)
-      expect(fake_collection[fake_author.author_name].author_name).toEqual("Author")
+      var fake_author_collection = {}
+      var fake_email_collection = {}
+      ContributorsStatGraphUtil.add_author(fake_author, fake_author_collection, fake_email_collection)
+      expect(fake_author_collection[fake_author.author_name].author_name).toEqual("Author")
+      expect(fake_email_collection[fake_author.author_email].author_name).toEqual("Author")
     })
   })