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migrate Podman to containers/common/libimage

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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>
This commit is contained in:
Valentin Rothberg
2021-04-22 08:01:12 +02:00
parent 8eefca5a25
commit 0f7d54b026
190 changed files with 8669 additions and 7743 deletions
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3
libpod/diff.go
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@ -1,6 +1,7 @@
package libpod
import (
"github.com/containers/common/libimage"
"github.com/containers/podman/v3/libpod/layers"
"github.com/containers/storage/pkg/archive"
"github.com/pkg/errors"
@ -49,7 +50,7 @@ func (r *Runtime) GetDiff(from, to string) ([]archive.Change, error) {
// If the id matches a layer, the top layer id is returned
func (r *Runtime) getLayerID(id string) (string, error) {
var toLayer string
toImage, err := r.imageRuntime.NewFromLocal(id)
toImage, _, err := r.libimageRuntime.LookupImage(id, &libimage.LookupImageOptions{IgnorePlatform: true})
if err == nil {
return toImage.TopLayer(), nil
}