Merge branch 'master' into 38869-ci-global38869-ci-global

* master: (116 commits)
  Fix bad type checking to prevent 0 count badge to be shown
  fix incorrect description for advanced settings section of project settings
  Introduce new hook data builders for Issue and MergeRequest
  Don't create todos for old issue assignees
  Start adding Gitlab::HookData::IssuableBuilder
  Include the changes in issuable webhook payloads
  Rename the `codeclimate` job to `codequality`
  Don't show an "Unsubscribe" link in snippet comment notifications
  Add QA::Scenario::Gitlab::Group::Create
  Removes CommitsList from global namespace
  Fix wiki empty page translation namespace not being removed
  Fixes mini graph in commit view
  Fix link to new i18n index page
  Update i18n docs
  Move i18n/introduction to i18n/index
  Resolve "Simple documentation update - backup to restore in restore section"
  Remove AjaxLoadingSpinner and CreateLabelDropdown from global namespace
  Move cycle analytics banner into a vue file
  Updated Icons + Fix for Collapsed Groups Angle
  Don't create fork networks for root projects that are deleted
  ...

5 files changed, 33 insertions, 20 deletions

diff --git a/app/models/concerns/cache_markdown_field.rb b/app/models/concerns/cache_markdown_field.rb
index 193e459977a..9417033d1f6 100644
--- a/app/models/concerns/cache_markdown_field.rb
+++ b/app/models/concerns/cache_markdown_field.rb
@@ -59,7 +59,7 @@ module CacheMarkdownField
 
   # Update every column in a row if any one is invalidated, as we only store
   # one version per row
-  def refresh_markdown_cache!(do_update: false)
+  def refresh_markdown_cache
     options = { skip_project_check: skip_project_check? }
 
     updates = cached_markdown_fields.markdown_fields.map do |markdown_field|
@@ -71,8 +71,14 @@ module CacheMarkdownField
     updates['cached_markdown_version'] = CacheMarkdownField::CACHE_VERSION
 
     updates.each {|html_field, data| write_attribute(html_field, data) }
+  end
+
+  def refresh_markdown_cache!
+    updates = refresh_markdown_cache
+
+    return unless persisted? && Gitlab::Database.read_write?
 
-    update_columns(updates) if persisted? && do_update
+    update_columns(updates)
   end
 
   def cached_html_up_to_date?(markdown_field)
@@ -124,8 +130,8 @@ module CacheMarkdownField
     end
 
     # Using before_update here conflicts with elasticsearch-model somehow
-    before_create :refresh_markdown_cache!, if: :invalidated_markdown_cache?
-    before_update :refresh_markdown_cache!, if: :invalidated_markdown_cache?
+    before_create :refresh_markdown_cache, if: :invalidated_markdown_cache?
+    before_update :refresh_markdown_cache, if: :invalidated_markdown_cache?
   end
 
   class_methods do
diff --git a/app/models/concerns/discussion_on_diff.rb b/app/models/concerns/discussion_on_diff.rb
index eee1a36ac6b..f5cbb3becad 100644
--- a/app/models/concerns/discussion_on_diff.rb
+++ b/app/models/concerns/discussion_on_diff.rb
@@ -28,6 +28,10 @@ module DiscussionOnDiff
     true
   end
 
+  def file_new_path
+    first_note.position.new_path
+  end
+
   # Returns an array of at most 16 highlighted lines above a diff note
   def truncated_diff_lines(highlight: true)
     lines = highlight ? highlighted_diff_lines : diff_lines
diff --git a/app/models/concerns/issuable.rb b/app/models/concerns/issuable.rb
index fc30d008dea..27f4dedffd3 100644
--- a/app/models/concerns/issuable.rb
+++ b/app/models/concerns/issuable.rb
@@ -256,23 +256,22 @@ module Issuable
     participants(user).include?(user)
   end
 
-  def to_hook_data(user)
-    hook_data = {
-      object_kind: self.class.name.underscore,
-      user: user.hook_attrs,
-      project: project.hook_attrs,
-      object_attributes: hook_attrs,
-      labels: labels.map(&:hook_attrs),
-      # DEPRECATED
-      repository: project.hook_attrs.slice(:name, :url, :description, :homepage)
-    }
-    if self.is_a?(Issue)
-      hook_data[:assignees] = assignees.map(&:hook_attrs) if assignees.any?
-    else
-      hook_data[:assignee] = assignee.hook_attrs if assignee
+  def to_hook_data(user, old_labels: [], old_assignees: [])
+    changes = previous_changes
+
+    if old_labels != labels
+      changes[:labels] = [old_labels.map(&:hook_attrs), labels.map(&:hook_attrs)]
+    end
+
+    if old_assignees != assignees
+      if self.is_a?(Issue)
+        changes[:assignees] = [old_assignees.map(&:hook_attrs), assignees.map(&:hook_attrs)]
+      else
+        changes[:assignee] = [old_assignees&.first&.hook_attrs, assignee&.hook_attrs]
+      end
     end
 
-    hook_data
+    Gitlab::HookData::IssuableBuilder.new(self).build(user: user, changes: changes)
   end
 
   def labels_array
diff --git a/app/models/concerns/routable.rb b/app/models/concerns/routable.rb
index 12e93be2104..22fde2eb134 100644
--- a/app/models/concerns/routable.rb
+++ b/app/models/concerns/routable.rb
@@ -156,6 +156,8 @@ module Routable
   end
 
   def update_route
+    return if Gitlab::Database.read_only?
+
     prepare_route
     route.save
   end
diff --git a/app/models/concerns/token_authenticatable.rb b/app/models/concerns/token_authenticatable.rb
index a7d5de48c66..ec3543f7053 100644
--- a/app/models/concerns/token_authenticatable.rb
+++ b/app/models/concerns/token_authenticatable.rb
@@ -43,15 +43,17 @@ module TokenAuthenticatable
         write_attribute(token_field, token) if token
       end
 
+      # Returns a token, but only saves when the database is in read & write mode
       define_method("ensure_#{token_field}!") do
         send("reset_#{token_field}!") if read_attribute(token_field).blank? # rubocop:disable GitlabSecurity/PublicSend
 
         read_attribute(token_field)
       end
 
+      # Resets the token, but only saves when the database is in read & write mode
       define_method("reset_#{token_field}!") do
         write_new_token(token_field)
-        save!
+        save! if Gitlab::Database.read_write?
       end
     end
   end