Merge branch 'master' into glitch-soc/merge-upstream

Conflicts:
	app/models/status.rb
	db/migrate/20180528141303_fix_accounts_unique_index.rb
	db/schema.rb

Resolved by taking upstream changes (no real conflicts, just glitch-soc
specific code too close to actual changes).

db/migrate/20171201000000_change_account_id_nonnullable_in_lists.rb

@@ -1,5 +1,3 @@
-require Rails.root.join('lib', 'mastodon', 'migration_helpers')
-
 class ChangeAccountIdNonnullableInLists < ActiveRecord::Migration[5.1]
   def change
     change_column_null :lists, :account_id, false

db/migrate/20180528141303_fix_accounts_unique_index.rb

@@ -6,6 +6,10 @@ class FixAccountsUniqueIndex < ActiveRecord::Migration[5.2]
     def local?
       domain.nil?
     end
+
+    def acct
+      local? ? username : "#{username}@#{domain}"
+    end
   end
 
   disable_ddl_transaction!

db/migrate/20180812162710_create_status_stats.rb

@@ -0,0 +1,12 @@
+class CreateStatusStats < ActiveRecord::Migration[5.2]
+  def change
+    create_table :status_stats do |t|
+      t.belongs_to :status, null: false, foreign_key: { on_delete: :cascade }, index: { unique: true }
+      t.bigint :replies_count, null: false, default: 0
+      t.bigint :reblogs_count, null: false, default: 0
+      t.bigint :favourites_count, null: false, default: 0
+
+      t.timestamps
+    end
+  end
+end

db/migrate/20180812173710_copy_status_stats.rb

@@ -0,0 +1,19 @@
+class CopyStatusStats < ActiveRecord::Migration[5.2]
+  disable_ddl_transaction!
+
+  def up
+    safety_assured do
+      execute <<-SQL.squish
+        INSERT INTO status_stats (status_id, reblogs_count, favourites_count, created_at, updated_at)
+        SELECT id, reblogs_count, favourites_count, created_at, updated_at
+        FROM statuses
+        ON CONFLICT (status_id) DO UPDATE
+        SET reblogs_count = EXCLUDED.reblogs_count, favourites_count = EXCLUDED.favourites_count
+      SQL
+    end
+  end
+
+  def down
+    # Nothing
+  end
+end

db/migrate/20180814171349_add_confidential_to_doorkeeper_application.rb

@@ -0,0 +1,23 @@
+require Rails.root.join('lib', 'mastodon', 'migration_helpers')
+
+class AddConfidentialToDoorkeeperApplication < ActiveRecord::Migration[5.2]
+  include Mastodon::MigrationHelpers
+
+  disable_ddl_transaction!
+
+  def up
+    safety_assured do
+      add_column_with_default(
+        :oauth_applications,
+        :confidential,
+        :boolean,
+        allow_null: false,
+        default: true # maintaining backwards compatibility: require secrets
+      )
+    end
+  end
+
+  def down
+    remove_column :oauth_applications, :confidential
+  end
+end