Add shorthand support to gitlab markdown references

app/helpers/gitlab_markdown_helper.rb

@@ -174,7 +174,7 @@ module GitlabMarkdownHelper
   # Returns a String
   def cross_project_reference(project, entity)
     if entity.respond_to?(:to_reference)
-      "#{project.to_reference}#{entity.to_reference}"
+      entity.to_reference(project)
     else
       ''
     end

app/helpers/labels_helper.rb

@@ -82,12 +82,6 @@ module LabelsHelper
     span.html_safe
   end
-  def render_colored_cross_project_label(label, source_project = nil, tooltip: true)
-    label_suffix = source_project ? source_project.name_with_namespace : label.project.name_with_namespace
-    label_suffix = " <i>in #{escape_once(label_suffix)}</i>"
-    render_colored_label(label, label_suffix, tooltip: tooltip)
-  end
-
   def suggested_colors
     [
       '#0033CC',
@@ -166,6 +160,5 @@ module LabelsHelper
   end
   # Required for Banzai::Filter::LabelReferenceFilter
-  module_function :render_colored_label, :render_colored_cross_project_label,
-                  :text_color_for_bg, :escape_once
+  module_function :render_colored_label, :text_color_for_bg, :escape_once
 end

app/models/commit.rb

@@ -92,19 +92,11 @@ class Commit
   end
   def to_reference(from_project = nil)
-    if cross_project_reference?(from_project)
-      project.to_reference + self.class.reference_prefix + self.id
-    else
-      self.id
-    end
+    commit_reference(from_project, id)
   end
   def reference_link_text(from_project = nil)
-    if cross_project_reference?(from_project)
-      project.to_reference + self.class.reference_prefix + self.short_id
-    else
-      self.short_id
-    end
+    commit_reference(from_project, short_id)
   end
   def diff_line_count
@@ -329,6 +321,16 @@ class Commit
   private
+  def commit_reference(from_project, referable_commit_id)
+    reference = project.to_reference(from_project)
+
+    if reference.present?
+      "#{reference}#{self.class.reference_prefix}#{referable_commit_id}"
+    else
+      referable_commit_id
+    end
+  end
+
   def find_author_by_any_email
     User.find_by_any_email(author_email.downcase)
   end

app/models/commit_range.rb

@@ -90,21 +90,24 @@ class CommitRange
   alias_method :id, :to_s
   def to_reference(from_project = nil)
-    if cross_project_reference?(from_project)
-      project.to_reference + self.class.reference_prefix + self.id
+    project_reference = project.to_reference(from_project)
+
+    if project_reference.present?
+      project_reference + self.class.reference_prefix + self.id
     else
       self.id
     end
   end
   def reference_link_text(from_project = nil)
-    reference = ref_from + notation + ref_to
-    if cross_project_reference?(from_project)
-      reference = project.to_reference + self.class.reference_prefix + reference
+    project_reference = project.to_reference(from_project)
+    reference         = ref_from + notation + ref_to
+    if project_reference.present?
+      project_reference + self.class.reference_prefix + reference
+    else
+      reference
     end
-
-    reference
   end
   # Return a Hash of parameters for passing to a URL helper

app/models/concerns/referable.rb

@@ -72,17 +72,4 @@ module Referable
       }x
     end
   end
-
-  private
-
-  # Check if a reference is being done cross-project
-  #
-  # from_project - Refering Project object
-  def cross_project_reference?(from_project)
-    if self.is_a?(Project)
-      self != from_project
-    else
-      from_project && self.project && self.project != from_project
-    end
-  end
 end

app/models/issue.rb

@@ -153,11 +153,7 @@ class Issue < ActiveRecord::Base
   def to_reference(from_project = nil)
     reference = "#{self.class.reference_prefix}#{iid}"
-    if cross_project_reference?(from_project)
-      reference = project.to_reference + reference
-    end
-
-    reference
+    "#{project.to_reference(from_project)}#{reference}"
   end
   def referenced_merge_requests(current_user = nil)

app/models/label.rb

@@ -144,9 +144,10 @@ class Label < ActiveRecord::Base
   #
   # Examples:
   #
-  #   Label.first.to_reference                     # => "~1"
-  #   Label.first.to_reference(format: :name)      # => "~\"bug\""
-  #   Label.first.to_reference(project1, project2) # => "gitlab-org/gitlab-ce~1"
+  #   Label.first.to_reference                                     # => "~1"
+  #   Label.first.to_reference(format: :name)                      # => "~\"bug\""
+  #   Label.first.to_reference(project, same_namespace_project)    # => "gitlab-ce~1"
+  #   Label.first.to_reference(project, another_namespace_project) # => "gitlab-org/gitlab-ce~1"
   #
   # Returns a String
   #
@@ -154,8 +155,8 @@ class Label < ActiveRecord::Base
     format_reference = label_format_reference(format)
     reference = "#{self.class.reference_prefix}#{format_reference}"
-    if cross_project_reference?(source_project, target_project)
-      source_project.to_reference + reference
+    if source_project
+      "#{source_project.to_reference(target_project)}#{reference}"
     else
       reference
     end
@@ -169,10 +170,6 @@ class Label < ActiveRecord::Base
   private
-  def cross_project_reference?(source_project, target_project)
-    source_project && target_project && source_project != target_project
-  end
-
   def issues_count(user, params = {})
     params.merge!(subject_foreign_key => subject.id, label_name: title, scope: 'all')
     IssuesFinder.new(user, params.with_indifferent_access).execute.count

app/models/merge_request.rb

@@ -176,11 +176,7 @@ class MergeRequest < ActiveRecord::Base
   def to_reference(from_project = nil)
     reference = "#{self.class.reference_prefix}#{iid}"
-    if cross_project_reference?(from_project)
-      reference = project.to_reference + reference
-    end
-
-    reference
+    "#{project.to_reference(from_project)}#{reference}"
   end
   def first_commit

app/models/milestone.rb

@@ -113,19 +113,16 @@ class Milestone < ActiveRecord::Base
   #
   # Examples:
   #
-  #   Milestone.first.to_reference                # => "%1"
-  #   Milestone.first.to_reference(format: :name) # => "%\"goal\""
-  #   Milestone.first.to_reference(project)       # => "gitlab-org/gitlab-ce%1"
+  #   Milestone.first.to_reference                           # => "%1"
+  #   Milestone.first.to_reference(format: :name)            # => "%\"goal\""
+  #   Milestone.first.to_reference(cross_namespace_project)  # => "gitlab-org/gitlab-ce%1"
+  #   Milestone.first.to_reference(same_namespace_project)   # => "gitlab-ce%1"
   #
   def to_reference(from_project = nil, format: :iid)
     format_reference = milestone_format_reference(format)
     reference = "#{self.class.reference_prefix}#{format_reference}"
-    if cross_project_reference?(from_project)
-      project.to_reference + reference
-    else
-      reference
-    end
+    "#{project.to_reference(from_project)}#{reference}"
   end
   def reference_link_text(from_project = nil)

app/models/project.rb

@@ -419,7 +419,11 @@ class Project < ActiveRecord::Base
     def reference_pattern
       name_pattern = Gitlab::Regex::NAMESPACE_REGEX_STR
-      %r{(?<project>#{name_pattern}/#{name_pattern})}
+
+      %r{
+        ((?<namespace>#{name_pattern})\/)?
+        (?<project>#{name_pattern})
+      }x
     end
     def trending
@@ -650,8 +654,20 @@ class Project < ActiveRecord::Base
     end
   end
-  def to_reference(_from_project = nil)
-    path_with_namespace
+  def to_reference(from_project = nil)
+    if cross_namespace_reference?(from_project)
+      path_with_namespace
+    elsif cross_project_reference?(from_project)
+      path
+    end
+  end
+
+  def to_human_reference(from_project = nil)
+    if cross_namespace_reference?(from_project)
+      name_with_namespace
+    elsif cross_project_reference?(from_project)
+      name
+    end
   end
   def web_url
@@ -1327,10 +1343,21 @@ class Project < ActiveRecord::Base
   private
+  # Check if a reference is being done cross-project
+  #
+  # from_project - Refering Project object
+  def cross_project_reference?(from_project)
+    from_project && self != from_project
+  end
+
   def pushes_since_gc_redis_key
     "projects/#{id}/pushes_since_gc"
   end
+  def cross_namespace_reference?(from_project)
+    from_project && namespace != from_project.namespace
+  end
+
   def default_branch_protected?
     current_application_settings.default_branch_protection == Gitlab::Access::PROTECTION_FULL ||
       current_application_settings.default_branch_protection == Gitlab::Access::PROTECTION_DEV_CAN_MERGE

app/models/snippet.rb

@@ -67,11 +67,11 @@ class Snippet < ActiveRecord::Base
   def to_reference(from_project = nil)
     reference = "#{self.class.reference_prefix}#{id}"
-    if cross_project_reference?(from_project)
-      reference = project.to_reference + reference
+    if project.present?
+      "#{project.to_reference(from_project)}#{reference}"
+    else
+      reference
     end
-
-    reference
   end
   def self.content_types

changelogs/unreleased/glm-shorthand-reference.yml

+---
+title: Add shorthand support to gitlab markdown references
+merge_request: 7255
+author: Oswaldo Ferreira

lib/banzai/filter/abstract_reference_filter.rb

@@ -33,7 +33,7 @@ module Banzai
       # Returns a String replaced with the return of the block.
       def self.references_in(text, pattern = object_class.reference_pattern)
         text.gsub(pattern) do |match|
-          yield match, $~[object_sym].to_i, $~[:project], $~
+          yield match, $~[object_sym].to_i, $~[:project], $~[:namespace], $~
         end
       end
@@ -145,8 +145,9 @@ module Banzai
       # Returns a String with references replaced with links. All links
       # have `gfm` and `gfm-OBJECT_NAME` class names attached for styling.
       def object_link_filter(text, pattern, link_content: nil)
-        references_in(text, pattern) do |match, id, project_ref, matches|
-          project = project_from_ref_cached(project_ref)
+        references_in(text, pattern) do |match, id, project_ref, namespace_ref, matches|
+          project_path = full_project_path(namespace_ref, project_ref)
+          project = project_from_ref_cached(project_path)
           if project && object = find_object_cached(project, id)
             title = object_link_title(object)
@@ -217,10 +218,9 @@ module Banzai
           nodes.each do |node|
             node.to_html.scan(regex) do
-              project = $~[:project] || current_project_path
+              project_path = full_project_path($~[:namespace], $~[:project])
               symbol = $~[object_sym]
-
-              refs[project] << symbol if object_class.reference_valid?(symbol)
+              refs[project_path] << symbol if object_class.reference_valid?(symbol)
             end
           end
@@ -272,8 +272,19 @@ module Banzai
         @current_project_path ||= project.path_with_namespace
       end
+      def current_project_namespace_path
+        @current_project_namespace_path ||= project.namespace.path
+      end
+
       private
+      def full_project_path(namespace, project_ref)
+        return current_project_path unless project_ref
+
+        namespace_ref = namespace || current_project_namespace_path
+        "#{namespace_ref}/#{project_ref}"
+      end
+
       def project_refs_cache
         RequestStore[:banzai_project_refs] ||= {}
       end

lib/banzai/filter/commit_range_reference_filter.rb

@@ -12,7 +12,7 @@ module Banzai
       def self.references_in(text, pattern = CommitRange.reference_pattern)
         text.gsub(pattern) do |match|
-          yield match, $~[:commit_range], $~[:project], $~
+          yield match, $~[:commit_range], $~[:project], $~[:namespace], $~
         end
       end

lib/banzai/filter/commit_reference_filter.rb

@@ -12,7 +12,7 @@ module Banzai
       def self.references_in(text, pattern = Commit.reference_pattern)
         text.gsub(pattern) do |match|
-          yield match, $~[:commit], $~[:project], $~
+          yield match, $~[:commit], $~[:project], $~[:namespace], $~
         end
       end

lib/banzai/filter/label_reference_filter.rb

@@ -14,16 +14,18 @@ module Banzai
       def self.references_in(text, pattern = Label.reference_pattern)
         unescape_html_entities(text).gsub(pattern) do |match|
-          yield match, $~[:label_id].to_i, $~[:label_name], $~[:project], $~
+          yield match, $~[:label_id].to_i, $~[:label_name], $~[:project], $~[:namespace], $~
         end
       end
       def references_in(text, pattern = Label.reference_pattern)
         unescape_html_entities(text).gsub(pattern) do |match|
-          label = find_label($~[:project], $~[:label_id], $~[:label_name])
+          namespace, project = $~[:namespace], $~[:project]
+          project_path = full_project_path(namespace, project)
+          label = find_label(project_path, $~[:label_id], $~[:label_name])
           if label
-            yield match, label.id, $~[:project], $~
+            yield match, label.id, project, namespace, $~
           else
             match
           end
@@ -64,48 +66,12 @@ module Banzai
       end
       def object_link_text(object, matches)
-        if same_group?(object) && namespace_match?(matches)
-          render_same_project_label(object)
-        elsif same_project?(object)
-          render_same_project_label(object)
-        else
-          render_cross_project_label(object, matches)
-        end
-      end
-
-      def same_group?(object)
-        object.is_a?(GroupLabel) && object.group == project.group
-      end
-
-      def namespace_match?(matches)
-        matches[:project].blank? || matches[:project] == project.path_with_namespace
-      end
-
-      def same_project?(object)
-        object.is_a?(ProjectLabel) && object.project == project
-      end
-
-      def user
-        context[:current_user] || context[:author]
-      end
-
-      def project
-        context[:project]
-      end
-
-      def render_same_project_label(object)
-        LabelsHelper.render_colored_label(object)
-      end
-
-      def render_cross_project_label(object, matches)
-        source_project =
-          if matches[:project]
-            Project.find_with_namespace(matches[:project])
-          else
-            object.project
-          end
-        LabelsHelper.render_colored_cross_project_label(object, source_project)
+        project_path     = full_project_path(matches[:namespace], matches[:project])
+        project_from_ref = project_from_ref_cached(project_path)
+        reference        = project_from_ref.to_human_reference(project)
+        label_suffix     = " <i>in #{reference}</i>" if reference.present?
+        LabelsHelper.render_colored_label(object, label_suffix)
       end
       def unescape_html_entities(text)

lib/banzai/filter/milestone_reference_filter.rb

@@ -19,18 +19,20 @@ module Banzai
         return super(text, pattern) if pattern != Milestone.reference_pattern
         text.gsub(pattern) do |match|
-          milestone = find_milestone($~[:project], $~[:milestone_iid], $~[:milestone_name])
+          milestone = find_milestone($~[:project], $~[:namespace], $~[:milestone_iid], $~[:milestone_name])
           if milestone
-            yield match, milestone.iid, $~[:project], $~
+            yield match, milestone.iid, $~[:project], $~[:namespace], $~
           else
             match
           end
         end
       end
-      def find_milestone(project_ref, milestone_id, milestone_name)
-        project = project_from_ref(project_ref)
+      def find_milestone(project_ref, namespace_ref, milestone_id, milestone_name)
+        project_path = full_project_path(namespace_ref, project_ref)
+        project = project_from_ref(project_path)
+
         return unless project
         milestone_params = milestone_params(milestone_id, milestone_name)
@@ -52,11 +54,13 @@ module Banzai
       end
       def object_link_text(object, matches)
-        if context[:project] == object.project
-          super
+        milestone_link = escape_once(super)
+        reference = object.project.to_reference(project)
+
+        if reference.present?
+          "#{milestone_link} <i>in #{reference}</i>".html_safe
         else
-          "#{escape_once(super)} <i>in #{escape_once(object.project.path_with_namespace)}</i>".
-            html_safe
+          milestone_link
         end
       end

spec/features/issues/move_spec.rb

@@ -28,7 +28,7 @@ feature 'issue move to another project' do
     let(:new_project) { create(:project) }
     let(:new_project_search) { create(:project) }
     let(:text) { "Text with #{mr.to_reference}" }
-    let(:cross_reference) { old_project.to_reference }
+    let(:cross_reference) { old_project.to_reference(new_project) }
     background do
       old_project.team << [user, :reporter]

spec/features/merge_requests/create_new_mr_spec.rb

@@ -40,7 +40,7 @@ feature 'Create New Merge Request', feature: true, js: true do
       visit new_namespace_project_merge_request_path(project.namespace, project, merge_request: { target_project_id: private_project.id })
-      expect(page).not_to have_content private_project.to_reference
+      expect(page).not_to have_content private_project.path_with_namespace
     end
   end

spec/helpers/labels_helper_spec.rb

@@ -7,7 +7,7 @@ describe LabelsHelper do
     context 'without subject' do
       it "uses the label's project" do
-        expect(link_to_label(label)).to match %r{<a href="/#{label.project.to_reference}/issues\?label_name%5B%5D=#{label.name}">.*</a>}
+        expect(link_to_label(label)).to match %r{<a href="/#{label.project.path_with_namespace}/issues\?label_name%5B%5D=#{label.name}">.*</a>}
       end
     end
@@ -32,7 +32,7 @@ describe LabelsHelper do
       ['issue', :issue, 'merge_request', :merge_request].each do |type|
         context "set to #{type}" do
           it 'links to correct page' do
-            expect(link_to_label(label, type: type)).to match %r{<a href="/#{label.project.to_reference}/#{type.to_s.pluralize}\?label_name%5B%5D=#{label.name}">.*</a>}
+            expect(link_to_label(label, type: type)).to match %r{<a href="/#{label.project.path_with_namespace}/#{type.to_s.pluralize}\?label_name%5B%5D=#{label.name}">.*</a>}
           end
         end
       end