Add public params to GET /projects api. Closes #3788

CHANGELOG

 Please view this file on the master branch, on stable branches it's out of date.
 
 v 8.5.0 (unreleased)
+  - Add "public" flag to GET /projects api endpoint
 
 v 8.4.0 (unreleased)
   - Ensure Gravatar host looks like an actual host

doc/api/projects.md

@@ -29,6 +29,7 @@ GET /projects
 Parameters:
 
 - `archived` (optional) - if passed, limit by archived status
+- `public` (optional) - if passed, limit by public visibility
 - `order_by` (optional) - Return requests ordered by `id`, `name`, `path`, `created_at`, `updated_at` or `last_activity_at` fields. Default is `created_at`
 - `sort` (optional) - Return requests sorted in `asc` or `desc` order. Default is `desc`
 - `search` (optional) - Return list of authorized projects according to a search criteria

lib/api/helpers.rb

@@ -264,6 +264,10 @@ module API
         projects = projects.search(params[:search])
       end
 
+      if params[:public].present? && parse_boolean(params[:public])
+        projects = projects.public_only
+      end
+
       projects.reorder(project_order_by => project_sort)
     end