migrate Podman to containers/common/libimage

Migrate the Podman code base over to `common/libimage` which replaces
`libpod/image` and a lot of glue code entirely.

Note that I tried to leave bread crumbs for changed tests.

Miscellaneous changes:

 * Some errors yield different messages which required to alter some
   tests.

 * I fixed some pre-existing issues in the code.  Others were marked as
   `//TODO`s to prevent the PR from exploding.

 * The `NamesHistory` of an image is returned as is from the storage.
   Previously, we did some filtering which I think is undesirable.
   Instead we should return the data as stored in the storage.

 * Touched handlers use the ABI interfaces where possible.

 * Local image resolution: previously Podman would match "foo" on
   "myfoo".  This behaviour has been changed and Podman will now
   only match on repository boundaries such that "foo" would match
   "my/foo" but not "myfoo".  I consider the old behaviour to be a
   bug, at the very least an exotic corner case.

 * Futhermore, "foo:none" does *not* resolve to a local image "foo"
   without tag anymore.  It's a hill I am (almost) willing to die on.

 * `image prune` prints the IDs of pruned images.  Previously, in some
   cases, the names were printed instead.  The API clearly states ID,
   so we should stick to it.

 * Compat endpoint image removal with _force_ deletes the entire not
   only the specified tag.

Signed-off-by: Valentin Rothberg <rothberg@redhat.com>

1 files changed, 0 insertions, 17 deletions

diff --git a/pkg/util/utils.go b/pkg/util/utils.go
index 622fbde99..60aa64ac1 100644
--- a/pkg/util/utils.go
+++ b/pkg/util/utils.go
@@ -554,23 +554,6 @@ func OpenExclusiveFile(path string) (*os.File, error) {
 	return os.OpenFile(path, os.O_RDWR|os.O_CREATE|os.O_EXCL, 0666)
 }
 
-type PullType = config.PullPolicy
-
-var (
-	// PullImageAlways always try to pull new image when create or run
-	PullImageAlways = config.PullImageAlways
-	// PullImageMissing pulls image if it is not locally
-	PullImageMissing = config.PullImageMissing
-	// PullImageNever will never pull new image
-	PullImageNever = config.PullImageNever
-)
-
-// ValidatePullType check if the pullType from CLI is valid and returns the valid enum type
-// if the value from CLI is invalid returns the error
-func ValidatePullType(pullType string) (PullType, error) {
-	return config.ValidatePullPolicy(pullType)
-}
-
 // ExitCode reads the error message when failing to executing container process
 // and then returns 0 if no error, 126 if command does not exist, or 127 for
 // all other errors