Merge new CE remote_mirror migrations into EE, and disable ones that are already in EE

db/migrate/20180503131624_create_remote_mirrors.rb

+class CreateRemoteMirrors < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  disable_ddl_transaction!
+
+  def up
+    return if table_exists?(:remote_mirrors)
+
+    create_table :remote_mirrors do |t|
+      t.references :project, index: true, foreign_key: { on_delete: :cascade }
+      t.string :url
+      t.boolean :enabled, default: true
+      t.string :update_status
+      t.datetime :last_update_at
+      t.datetime :last_successful_update_at
+      t.datetime :last_update_started_at
+      t.string :last_error
+      t.boolean :only_protected_branches, default: false, null: false
+      t.string :remote_name
+      t.text :encrypted_credentials
+      t.string :encrypted_credentials_iv
+      t.string :encrypted_credentials_salt
+
+      t.timestamps null: false
+    end
+  end
+
+  def down
+    # ee/db/migrate/20160321161032_create_remote_mirrors_ee.rb will remove the table
+  end
+end

ee/db/migrate/20171017130239_add_remote_mirror_available_overridden_to_projects.rb → db/migrate/20180503141722_add_remote_mirror_available_overridden_to_projects.rb

@@ -6,10 +6,10 @@ class AddRemoteMirrorAvailableOverriddenToProjects < ActiveRecord::Migration
   disable_ddl_transaction!
 
   def up
-    add_column(:projects, :remote_mirror_available_overridden, :boolean)
+    add_column(:projects, :remote_mirror_available_overridden, :boolean) unless column_exists?(:projects, :remote_mirror_available_overridden)
   end
 
   def down
-    remove_column(:projects, :remote_mirror_available_overridden)
+    # ee/db/migrate/20171017130239_add_remote_mirror_available_overridden_to_projects_ee.rb will remove the column.
   end
 end

db/migrate/20180503193542_add_indexes_to_remote_mirror.rb

+class AddIndexesToRemoteMirror < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  disable_ddl_transaction!
+
+  def up
+    add_concurrent_index :remote_mirrors, :last_successful_update_at unless index_exists?(:remote_mirrors, :last_successful_update_at)
+  end
+
+  def down
+    # ee/db/migrate/20170208144550_add_index_to_mirrors_last_update_at_fields.rb will remove the index.
+  end
+end

db/migrate/20180503193953_add_mirror_available_to_application_settings.rb

+class AddMirrorAvailableToApplicationSettings < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  disable_ddl_transaction!
+
+  def up
+    add_column_with_default(:application_settings, :mirror_available, :boolean, default: true, allow_null: false) unless column_exists?(:application_settings, :mirror_available)
+  end
+
+  def down
+    # ee/db/migrate/20171017125928_add_remote_mirror_available_to_application_settings.rb will remove the column.
+  end
+end

ee/db/migrate/20160321161032_create_remote_mirrors.rb → ee/db/migrate/20160321161032_create_remote_mirrors_ee.rb

 # rubocop:disable Migration/Datetime
 # rubocop:disable Migration/Timestamps
-class CreateRemoteMirrors < ActiveRecord::Migration
-  def change
+class CreateRemoteMirrorsEE < ActiveRecord::Migration
+  def up
+    # When moving from CE to EE, remote_mirrors may already exist
+    return if table_exists?(:remote_mirrors)
+
     create_table :remote_mirrors do |t|
       t.references :project, index: true, foreign_key: true
       t.string :url
@@ -17,4 +20,8 @@ class CreateRemoteMirrors < ActiveRecord::Migration
       t.timestamps null: false
     end
   end
+
+  def down
+    drop_table :remote_mirrors if table_exists?(:remote_mirrors)
+  end
 end

ee/db/migrate/20170208144550_add_index_to_mirrors_last_update_at_fields.rb

@@ -7,8 +7,8 @@ class AddIndexToMirrorsLastUpdateAtFields < ActiveRecord::Migration
   disable_ddl_transaction!
 
   def up
-    add_concurrent_index :projects, :mirror_last_successful_update_at
-    add_concurrent_index :remote_mirrors, :last_successful_update_at
+    add_concurrent_index :projects, :mirror_last_successful_update_at unless index_exists? :projects, :mirror_last_successful_update_at
+    add_concurrent_index :remote_mirrors, :last_successful_update_at unless index_exists? :remote_mirrors, :last_successful_update_at
   end
 
   def down

ee/db/migrate/20170427180205_add_last_update_started_at_column_to_remote_mirrors.rb

@@ -4,7 +4,14 @@ class AddLastUpdateStartedAtColumnToRemoteMirrors < ActiveRecord::Migration
 
   DOWNTIME = false
 
-  def change
+  def up
+    # When moving from CE to EE, this column may already exist
+    return if column_exists?(:remote_mirrors, :last_update_started_at)
+
     add_column :remote_mirrors, :last_update_started_at, :datetime
   end
+
+  def down
+    remove_column :remote_mirrors, :last_update_started_at
+  end
 end

ee/db/migrate/20171017125928_add_remote_mirror_available_to_application_settings.rb

@@ -6,6 +6,9 @@ class AddRemoteMirrorAvailableToApplicationSettings < ActiveRecord::Migration
   disable_ddl_transaction!
 
   def up
+    # When moving from CE to EE, this column may already exist
+    return if column_exists?(:application_settings, :remote_mirror_available)
+
     add_column_with_default(:application_settings, :remote_mirror_available, :boolean, default: true, allow_null: false)
   end
 

ee/db/migrate/20171017130239_add_remote_mirror_available_overridden_to_projects_ee.rb

+class AddRemoteMirrorAvailableOverriddenToProjectsEE < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  disable_ddl_transaction!
+
+  def up
+    # When moving from CE to EE, this column may already exist
+    return if column_exists?(:projects, :remote_mirror_available_overridden)
+
+    add_column(:projects, :remote_mirror_available_overridden, :boolean)
+  end
+
+  def down
+    remove_column(:projects, :remote_mirror_available_overridden)
+  end
+end

ee/db/migrate/20180109150457_add_remote_name_to_remote_mirrors.rb

@@ -3,7 +3,14 @@ class AddRemoteNameToRemoteMirrors < ActiveRecord::Migration
 
   DOWNTIME = false
 
-  def change
+  def up
+    # When moving from CE to EE, this column may already exist
+    return if column_exists?(:remote_mirrors, :remote_name)
+
     add_column :remote_mirrors, :remote_name, :string
   end
+
+  def down
+    remove_column :remote_mirrors, :remote_name
+  end
 end

ee/db/post_migrate/20170427111108_remove_sync_time_column_from_remote_mirrors.rb

@@ -7,11 +7,11 @@ class RemoveSyncTimeColumnFromRemoteMirrors < ActiveRecord::Migration
 
   def up
     remove_concurrent_index :remote_mirrors, [:sync_time] if index_exists? :remote_mirrors, [:sync_time]
-    remove_column :remote_mirrors, :sync_time, :integer
+    remove_column :remote_mirrors, :sync_time, :integer if column_exists? :remote_mirrors, :sync_time
   end
 
   def down
-    add_column :remote_mirrors, :sync_time, :integer
-    add_concurrent_index :remote_mirrors, [:sync_time]
+    add_column :remote_mirrors, :sync_time, :integer unless column_exists? :remote_mirrors, :sync_time
+    add_concurrent_index :remote_mirrors, [:sync_time] unless index_exists? :remote_mirrors, [:sync_time]
   end
 end