We conflate the manifest & parsing logic with the management of the
repo client checkout in a single class. This makes testing just one
part (the manifest parsing) hard as it requires a full checkout too.
Start splitting the two apart into separate classes to make it easy
to reason about & test.
Change-Id: Iaf897c93db9c724baba6044bfe7a589c024523b2
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/288682
Reviewed-by: Michael Mortensen <mmortensen@google.com>
Tested-by: Mike Frysinger <vapier@google.com>
8c1e9cbef1