IsCommitSHA returns whether or not a string is a 40 character SHA-1.

IsSSHURL returns true if supplied URL is SSH URL.

IsTruncatedCommitSHA returns whether or not a string is a truncated SHA-1.

NormalizeGitURL normalizes a git URL for purposes of comparison, as well as preventing redundant local clones (by normalizing various forms of a URL to a consistent location).

SameURL returns whether or not the two repository URLs are equivalent in location.

TestRepo tests if a repo exists and is accessible with the given credentials.

Client is a generic git client interface.

ClientFactory is a factory of Git Clients Primarily used to support creation of mock git clients during unit testing.