Use Label#scoped_label_key when determining scope

This unifies our code for determining which part of the scoped
label is the scope and which part is the name

ee/app/helpers/ee/labels_helper.rb

@@ -11,14 +11,12 @@ module EE
     def render_colored_label(label, suffix: '')
       return super unless label.scoped_label?
 
-      scope_name, label_name = label.name.split(Label::SCOPED_LABEL_SEPARATOR)
-
       render_label_text(
-        scope_name,
+        label.scoped_label_key,
         css_class: text_color_class_for_bg(label.color),
         bg_color: label.color
       ) + render_label_text(
-        label_name,
+        label.scoped_label_value,
         suffix: suffix
       )
     end

ee/app/models/ee/label.rb

@@ -12,7 +12,11 @@ module EE
     end
 
     def scoped_label_key
-      title[Label::SCOPED_LABEL_PATTERN]
+      title[Label::SCOPED_LABEL_PATTERN]&.delete_suffix(SCOPED_LABEL_SEPARATOR)
+    end
+
+    def scoped_label_value
+      title.sub(SCOPED_LABEL_PATTERN, '')
     end
   end
 end

ee/spec/features/boards/sidebar_spec.rb

@@ -263,9 +263,6 @@ describe 'Issue Boards', :js do
     end
 
     it 'removes existing scoped label' do
-      scoped1 = scoped_label_1.title.split(Label::SCOPED_LABEL_SEPARATOR)
-      scoped2 = scoped_label_2.title.split(Label::SCOPED_LABEL_SEPARATOR)
-
       click_card(card1)
 
       page.within('.labels') do
@@ -285,9 +282,9 @@ describe 'Issue Boards', :js do
 
         page.within('.value') do
           expect(page).to have_selector('.gl-label-scoped', count: 1)
-          expect(page).not_to have_content(scoped1.last)
-          expect(page).to have_content(scoped2.first)
-          expect(page).to have_content(scoped2.last)
+          expect(page).not_to have_content(scoped_label_1.scoped_label_value)
+          expect(page).to have_content(scoped_label_2.scoped_label_key)
+          expect(page).to have_content(scoped_label_2.scoped_label_value)
         end
       end
 

ee/spec/helpers/ee/labels_helper_spec.rb

@@ -14,9 +14,7 @@ describe LabelsHelper do
       end
 
       it 'includes link to scoped labels documentation' do
-        scope, name = scoped_label.title.split(Label::SCOPED_LABEL_SEPARATOR)
-
-        expect(render_label(scoped_label)).to match(%r(<span.+>#{scope}</span><span.+>#{name}</span><a.+>.*question-circle.*</a>)m)
+        expect(render_label(scoped_label)).to match(%r(<span.+>#{scoped_label.scoped_label_key}</span><span.+>#{scoped_label.scoped_label_value}</span><a.+>.*question-circle.*</a>)m)
       end
 
       it 'does not include link to scoped label documentation for common labels' do

ee/spec/lib/banzai/filter/label_reference_filter_spec.rb

@@ -16,9 +16,8 @@ describe Banzai::Filter::LabelReferenceFilter do
 
     it 'includes link to scoped documentation' do
       doc = reference_filter("See #{scoped_label.to_reference}")
-      scope, name = scoped_label.name.split(Label::SCOPED_LABEL_SEPARATOR)
 
-      expect(doc.to_html).to match(%r(<span.+><a.+><span.+>#{scope}</span><span.+>#{name}</span></a><a.+>.*question-circle.*</a></span>))
+      expect(doc.to_html).to match(%r(<span.+><a.+><span.+>#{scoped_label.scoped_label_key}</span><span.+>#{scoped_label.scoped_label_value}</span></a><a.+>.*question-circle.*</a></span>))
     end
 
     it 'does not include link to scoped documentation for common labels' do

ee/spec/models/ee/label_spec.rb

@@ -19,17 +19,25 @@ describe Label do
     end
   end
 
-  describe '#scoped_label_key' do
-    it 'returns key for scoped labels' do
-      mappings = {
-        'key1::key 2::some value' => 'key1::key 2::',
-        'key1::some value' => 'key1::',
-        '::some value' => '::',
-        'some value' => nil
-      }
-
-      mappings.each do |title, expected_key|
-        expect(build(:label, title: title).scoped_label_key).to eq(expected_key)
+  describe 'splitting scoped labels' do
+    using RSpec::Parameterized::TableSyntax
+
+    where(:title, :key, :value) do
+      'key1::key 2::some value' | 'key1::key 2' | 'some value'
+      'key1::some value'        | 'key1'        | 'some value'
+      '::some value'            | ''            | 'some value'
+      'some value'              | nil           | 'some value'
+    end
+
+    with_them do
+      let(:label) { build(:label, title: title) }
+
+      it '#scoped_label_key returns key for scoped labels' do
+        expect(label.scoped_label_key).to eq(key)
+      end
+
+      it '#scoped_label_value returns title without the key' do
+        expect(label.scoped_label_value).to eq(value)
       end
     end
   end

ee/spec/models/scoped_label_set_spec.rb

@@ -26,8 +26,8 @@ describe ScopedLabelSet do
 
       expect(sets.size).to eq 3
       expect(get_labels(sets, nil)).to match_array([labels[0].id, labels[1].id])
-      expect(get_labels(sets, 'key::')).to match_array([labels[2].id, labels[3].id])
-      expect(get_labels(sets, 'key::another key::')).to match_array([labels[4].id, labels[5].id])
+      expect(get_labels(sets, 'key')).to match_array([labels[2].id, labels[3].id])
+      expect(get_labels(sets, 'key::another key')).to match_array([labels[4].id, labels[5].id])
     end
   end
 

lib/gitlab/markdown_cache.rb

@@ -3,7 +3,7 @@
 module Gitlab
   module MarkdownCache
     # Increment this number every time the renderer changes its output
-    CACHE_COMMONMARK_VERSION        = 19
+    CACHE_COMMONMARK_VERSION        = 20
     CACHE_COMMONMARK_VERSION_START  = 10
 
     BaseError = Class.new(StandardError)