containers/common/libimage is in need to check whether a given input
looks like a full image ID (i.e., a 64-byte hex string). Since
compiling regexes has a negative impact on init- and run-time, let's
expose a function to check whether a given string matches the already
compiled regex in docker/reference.
Signed-off-by: Valentin Rothberg <vrothberg@redhat.com>
This replaces the copy of github.com/docker/docker/reference in the same
place, which we have just gotten rid of, and allows using this package
even in consumers which insist on an incompatible version of
docker/distribution.
The copy has been edited to drop a reference to
github.com/docker/distribution/digestset .
Signed-off-by: Miloslav Trmač <mitr@redhat.com>
Valentin Rothberg