Grzegorz Bizon authored 5 years ago and Filipa Lacerda committed 5 years ago

This change makes it possible to avoid additional serialization of
entire pipeline when rendering a build details page. Instead we expose
more information from the build entity itself what is much cheaper than
serializing entire pipeline.

Additionally we do not need to serialize `latest?` flag, which involves
multiple Gitaly calls.

Partially addresses #47424.

Now we have a PipelineEntity which is a bit smaller, mostly in bytes
needing to send to the frontend. PipelineDetailsEntity is the default
for the PipelineSerializer, limiting the changes needed.

This commit also incorporates the review.