add remote-client diff

the remote client now can run the diff command to report changes,
modifications, and deletions in an image or container.

Signed-off-by: baude <bbaude@redhat.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/pkg/adapter/runtime.go b/pkg/adapter/runtime.go
index 6a68a3aea..dd51c7233 100644
--- a/pkg/adapter/runtime.go
+++ b/pkg/adapter/runtime.go
@@ -23,6 +23,7 @@ import (
 	"github.com/containers/libpod/libpod/events"
 	"github.com/containers/libpod/libpod/image"
 	"github.com/containers/libpod/pkg/rootless"
+	"github.com/containers/storage/pkg/archive"
 	"github.com/pkg/errors"
 )
 
@@ -430,3 +431,8 @@ func (r *LocalRuntime) Events(c *cliconfig.EventValues) error {
 	}
 	return nil
 }
+
+// Diff shows the difference in two objects
+func (r *LocalRuntime) Diff(c *cliconfig.DiffValues, to string) ([]archive.Change, error) {
+	return r.Runtime.GetDiff("", to)
+}