Break up very large or complex functions in search code

Created by: rvantonder

The following large functions are candidates for refactors that break them up into smaller pieces. Please edit this issue if you come across functions that seem like good candidates. Comment if you have an opinion on the items.

• resolveRepositories. About 200 lines of code, but complex. One way could be to break up the Repos.List, version context setup, and resolving revs separately.