Move event icons into events_helper

app/helpers/events_helper.rb

 module EventsHelper
+  ICON_NAMES_BY_EVENT_TYPE = {
+    'pushed to' => 'icon_commit',
+    'pushed new' => 'icon_commit',
+    'created' => 'icon_status_open',
+    'opened' => 'icon_status_open',
+    'closed' => 'icon_status_closed',
+    'accepted' => 'icon_code_fork',
+    'commented on' => 'icon_comment_o',
+    'deleted' => 'icon_trash_o'
+  }.freeze
+
   def link_to_author(event)
     author = event.author
 
@@ -183,4 +194,21 @@ module EventsHelper
       "event-inline"
     end
   end
+
+  def icon_for_event(note)
+    icon_name = ICON_NAMES_BY_EVENT_TYPE[note]
+    custom_icon(icon_name) if icon_name
+  end
+
+  def icon_for_profile_event(event)
+    if current_path?('users#show')
+      content_tag :div, class: "system-note-image #{event.action_name.parameterize}-icon" do
+        icon_for_event(event.action_name)
+      end
+    else
+      content_tag :div, class: 'system-note-image user-avatar' do
+        author_avatar(event, size: 32)
+      end
+    end
+  end
 end

app/helpers/system_note_helper.rb

 module SystemNoteHelper
   ICON_NAMES_BY_ACTION = {
     'commit' => 'icon_commit',
-    'pushed to' => 'icon_commit',
-    'pushed new' => 'icon_commit',
     'merge' => 'icon_merge',
     'merged' => 'icon_merged',
     'opened' => 'icon_status_open',
-    'created' => 'icon_status_open',
     'closed' => 'icon_status_closed',
     'time_tracking' => 'icon_stopwatch',
     'assignee' => 'icon_user',
@@ -15,30 +12,15 @@ module SystemNoteHelper
     'label' => 'icon_tags',
     'cross_reference' => 'icon_random',
     'branch' => 'icon_code_fork',
-    'accepted' => 'icon_code_fork',
     'confidential' => 'icon_eye_slash',
     'visible' => 'icon_eye',
     'milestone' => 'icon_clock_o',
     'discussion' => 'icon_comment_o',
-    'commented on' => 'icon_comment_o',
-    'moved' => 'icon_arrow_circle_o_right',
-    'deleted' => 'icon_trash_o'
+    'moved' => 'icon_arrow_circle_o_right'
   }.freeze
 
   def icon_for_system_note(note)
-    icon_name = ICON_NAMES_BY_ACTION[note]
+    icon_name = ICON_NAMES_BY_ACTION[note.system_note_metadata&.action]
     custom_icon(icon_name) if icon_name
   end
-
-  def icon_for_profile_event(event)
-    if current_path?('users#show')
-      content_tag :div, class: "system-note-image #{event.action_name}-icon" do
-        icon_for_system_note(event.action_name)
-      end
-    else
-      content_tag :div, class: 'system-note-image user-avatar' do
-        author_avatar(event, size: 32)
-      end
-    end
-  end
 end

app/views/projects/notes/_note.html.haml

@@ -6,7 +6,7 @@
   .timeline-entry-inner
     .timeline-icon
       - if note.system
-        = icon_for_system_note(note.system_note_metadata&.action)
+        = icon_for_system_note(note)
       - else
         %a{ href: user_path(note.author) }
           = image_tag avatar_icon(note.author), alt: '', class: 'avatar s40'