Append maintenance status per version

Signed-off-by: Takuya Noguchi <[email protected]>

helpers/config_helper.rb

@@ -6,4 +6,20 @@ def current_version
   def versions
     config[:versions]
   end
-end
+
+  def versions_grouped_by_status
+    versions.reverse.group_by { status(_1) }
+  end
+
+  private
+
+  def status(version)
+    if version == "v2.3"
+      "Current release"
+    elsif %w[v2.2 v2.1].include?(version)
+      "Legacy release"
+    else
+      "Deprecated release"
+    end
+  end
+end

source/partials/_commands_sidebar.haml

@@ -2,10 +2,12 @@
 
 %h4 Choose version
 %select.version-selects.form-select.mb-3
-  - versions.reverse.each do |version|
-    %option{selected: version == current_visible_version,
-                      value: documentation_path(current_page_without_version, version) || documentation_path('bundle-install.1', version)}
-      = version
+  - versions_grouped_by_status.each do |status, _versions|
+    %optgroup{label: status}
+      - _versions.each do |version|
+        %option{selected: version == current_visible_version,
+                          value: documentation_path(current_page_without_version, version) || documentation_path('bundle-install.1', version)}
+          = version
 %h4 Primary Commands
 %ul
   - primary_commands.select{ |page| path_exist?(page, current_visible_version) }.each do |page|