Integrate version contexts in the GraphQL API (!10346) · Merge requests · Administrator / sourcegraph · GitLab

Administrator requested to merge search/add-version-context into master May 01, 2020

Created by: asdine

This PR adds backend support for version context:

Version contexts are defined in the site configuration
They can be used in the GraphQL search query to resolve the right repository revisions
The list of version contexts is accessible through the GraphQL API

This PR is based on #10219 and fixes #10194