Prevent unnecessary clones

[jansenignacio]

This feature request adds a lot of complexity to this project but here it is anyway

PROBLEM:
Suppose you have a constant list of 10 repos you want to use Turbolift for. Each and every campaign you create will result in a new clone of the repos. This takes up unnecessary space on a dev's local drive, plus it's slow to download them over and over.

FEATURE REQUEST:
Allow to define a localpath in repos.txt which indicates a local clone of a repository to be worked on. Use this clone instead of creating a new one in the work directory for every new campaign

ALTERNATIVE APPROACH:
Allow to define a repos.txt (or core_repos.txt) in the root of a turbolift directory (this also invents this concept). These core_repos are what you expect to work on most of the time, and thus shouldn't re-clone everytime. There would also be a work directory beside the core_repos.txt.

The file structure would look something like this:

/turbolift_project
--core_repos.txt
--/work
----/repo1
----/repo2
--/campaign_1
----repos.txt
----/work
------/repo3
--/capmpaign_2
----/repos.txt
----/work
------/repo4

[sledigabel]

Thanks a lot for raising this @jansenignacio!
We had a previous internal version of the tool that worked like that based off git worktree and did exactly what you describe. I'll add some more details based on that issue a bit later.