GitLab recently restructured their repos; whereas previously they had
one gitlab-ce and one gitlab-ee repo, they're now one and the
same. All proprietary components are put into the ee subdirectory -
removing it gives us the foss / community version of GitLab. For more
info, see
https://about.gitlab.com/2019/02/21/merging-ce-and-ee-codebases/
This gives us the opportunity to simplify things quite a bit, since we
don't have to keep track of two separate versions of either the base
data or rubyEnv.
- Update GitLab to 12.3.4
- Update update.py to cope with the new upstream repository structure
- Refactor gitlab-shell to use buildGoPackage and bundlerEnv for
dependencies
- Refactor gitlab-workhorse to use buildGoPackage for dependencies
- Make update.py able to update gitlab-shell and gitlab-workhorse
dependencies
- Various fixes necessary for update to work
This is a major version bump but things were generally straightforward
save two wrinkles:
* it is necessary to ignore collisions in the gitlab bundler
environment as both `omniauth_oauth2_generic` and
`apollo_upload_server` provide a `console` executable.
* grpc had to be patched since its build system expects the `AR`
environment variable to contain not just the path to `ar` but
also the `rpc` flags (see the discussion in nixpkgs #63056).
