Abstracts search and directory traversal. Adds support for installing
from a local git repository, a local directory, or a web hosted git repo
without relying on an api.
Changelog-Changed: Reckless can now install directly from local sources.
Avoids failing the test with the pip warning:
WARNING: Running pip as the 'root' user can result in broken permissions and conflicting behaviour with the system package manager. It is recommended to use a virtual environment instead: https://pip.pypa.io/warnings/venv
reported by: @ksedgwic
Changelog-None
Alex Myers