SetHeadDetached (git_repository_set_head_detached) only changes HEAD,
and does not actually checkout the files on disk. Use CheckoutHead with
the CheckoutForce Strategy to actually check the files out on disk.
Additionally add a test that validates the hash of a checked out file's
contents.
Previously, the hash of the desired tag was being reported as the
checked out revision by the GitRepository. However the wrong files were
checked out and an incorrect revision would be deployed by Flux.
Signed-off-by: Blake Burkhart <blake.burkhart@us.af.mil>
In some circumstances (that are rather hard to reproduce), cloning
from a GitLab repo gets a multiline response as described in
https://github.com/fluxcd/image-automation-controller/pull/115.
This uses the same remedy as in that PR, by calling the funcs provided
by fluxcd/pkg/gitutil on any error returned by libgit2 or gogit clone
operations.
Signed-off-by: Michael Bridgen <mikeb@squaremobius.net>