Introduce ci_builds.artifacts_sizes as JSON:

We store the sizes as a hash from path to bytes like:

``` ruby
{'ci_artifacts.txt' => 27,
 'other_artifacts_0.1.2/another-subdirectory/banana_sample.gif' =>
71759,
 'other_artifacts_0.1.2/doc_sample.txt' => 1314,
 'rails_sample.jpg' => 35255,
 'tests_encoding/utf8 test dir ✓/regular_file_2' => 7}
```

So that it's easier to access than reading gzip file again.

1 files changed, 11 insertions, 0 deletions

diff --git a/db/migrate/20160628085157_add_artifacts_sizes_to_ci_builds.rb b/db/migrate/20160628085157_add_artifacts_sizes_to_ci_builds.rb
new file mode 100644
index 00000000000..bad260b83ea
--- /dev/null
+++ b/db/migrate/20160628085157_add_artifacts_sizes_to_ci_builds.rb
@@ -0,0 +1,11 @@
+# See http://doc.gitlab.com/ce/development/migration_style_guide.html
+# for more information on how to write migrations for GitLab.
+
+class AddArtifactsSizesToCiBuilds < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  def change
+    # Or :json if under PostgreSQL?
+    add_column(:ci_builds, :artifacts_sizes, :text)
+  end
+end