Cleanup after adding MR diff's commit_countjprovazn-count-cleanup

* processes any pending records which are not migrated yet
* bumps import_export version because of new commits_count attribute
* removes commits_count fallback method

6 files changed, 18 insertions, 7 deletions

diff --git a/app/models/merge_request_diff.rb b/app/models/merge_request_diff.rb
index c1c27ccf3e5..06aa67c600f 100644
--- a/app/models/merge_request_diff.rb
+++ b/app/models/merge_request_diff.rb
@@ -197,10 +197,6 @@ class MergeRequestDiff < ActiveRecord::Base
     CompareService.new(project, head_commit_sha).execute(project, sha, straight: true)
   end
 
-  def commits_count
-    super || merge_request_diff_commits.size
-  end
-
   private
 
   def create_merge_request_diff_files(diffs)
diff --git a/db/migrate/20180304204842_clean_commits_count_migration.rb b/db/migrate/20180304204842_clean_commits_count_migration.rb
new file mode 100644
index 00000000000..ace4c6aa1cf
--- /dev/null
+++ b/db/migrate/20180304204842_clean_commits_count_migration.rb
@@ -0,0 +1,14 @@
+class CleanCommitsCountMigration < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  disable_ddl_transaction!
+
+  def up
+    Gitlab::BackgroundMigration.steal('AddMergeRequestDiffCommitsCount')
+  end
+
+  def down
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index db8bafe9677..4937fbd3df1 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -11,7 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20180301084653) do
+ActiveRecord::Schema.define(version: 20180304204842) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
diff --git a/doc/user/project/settings/import_export.md b/doc/user/project/settings/import_export.md
index dedf102fc37..5ddeb014b30 100644
--- a/doc/user/project/settings/import_export.md
+++ b/doc/user/project/settings/import_export.md
@@ -31,7 +31,8 @@ with all their related data and be moved into a new GitLab instance.
 
 | GitLab version   | Import/Export version |
 | ---------------- | --------------------- |
-| 10.4 to current  | 0.2.2                 |
+| 10.6 to current  | 0.2.3                 |
+| 10.4             | 0.2.2                 |
 | 10.3             | 0.2.1                 |
 | 10.0             | 0.2.0                 |
 | 9.4.0            | 0.1.8                 |
diff --git a/lib/gitlab/import_export.rb b/lib/gitlab/import_export.rb
index af203ff711d..b713fa7e1cd 100644
--- a/lib/gitlab/import_export.rb
+++ b/lib/gitlab/import_export.rb
@@ -3,7 +3,7 @@ module Gitlab
     extend self
 
     # For every version update, the version history in import_export.md has to be kept up to date.
-    VERSION = '0.2.2'.freeze
+    VERSION = '0.2.3'.freeze
     FILENAME_LIMIT = 50
 
     def export_path(relative_path:)
diff --git a/spec/features/projects/import_export/test_project_export.tar.gz b/spec/features/projects/import_export/test_project_export.tar.gz
index 0cc68aff494..12bfcc177c7 100644
--- a/spec/features/projects/import_export/test_project_export.tar.gz
+++ b/spec/features/projects/import_export/test_project_export.tar.gz