podman manifest exists

Add podman manifest exists command with remote support.

Signed-off-by: Paul Holzinger <paul.holzinger@web.de>

3 files changed, 22 insertions, 0 deletions

diff --git a/pkg/domain/entities/engine_image.go b/pkg/domain/entities/engine_image.go
index 935ee6f20..ee611502f 100644
--- a/pkg/domain/entities/engine_image.go
+++ b/pkg/domain/entities/engine_image.go
@@ -32,6 +32,7 @@ type ImageEngine interface {
 	Unmount(ctx context.Context, images []string, options ImageUnmountOptions) ([]*ImageUnmountReport, error)
 	Untag(ctx context.Context, nameOrID string, tags []string, options ImageUntagOptions) error
 	ManifestCreate(ctx context.Context, names, images []string, opts ManifestCreateOptions) (string, error)
+	ManifestExists(ctx context.Context, name string) (*BoolReport, error)
 	ManifestInspect(ctx context.Context, name string) ([]byte, error)
 	ManifestAdd(ctx context.Context, opts ManifestAddOptions) (string, error)
 	ManifestAnnotate(ctx context.Context, names []string, opts ManifestAnnotateOptions) (string, error)
diff --git a/pkg/domain/infra/abi/manifest.go b/pkg/domain/infra/abi/manifest.go
index 139032ad6..626f1f7bf 100644
--- a/pkg/domain/infra/abi/manifest.go
+++ b/pkg/domain/infra/abi/manifest.go
@@ -40,6 +40,18 @@ func (ir *ImageEngine) ManifestCreate(ctx context.Context, names, images []strin
 	return imageID, err
 }
 
+// ManifestExists checks if a manifest list with the given name exists in local storage
+func (ir *ImageEngine) ManifestExists(ctx context.Context, name string) (*entities.BoolReport, error) {
+	if image, err := ir.Libpod.ImageRuntime().NewFromLocal(name); err == nil {
+		exists, err := image.ExistsManifest()
+		if err != nil && errors.Cause(err) != buildahManifests.ErrManifestTypeNotSupported {
+			return nil, err
+		}
+		return &entities.BoolReport{Value: exists}, nil
+	}
+	return &entities.BoolReport{Value: false}, nil
+}
+
 // ManifestInspect returns the content of a manifest list or image
 func (ir *ImageEngine) ManifestInspect(ctx context.Context, name string) ([]byte, error) {
 	if newImage, err := ir.Libpod.ImageRuntime().NewFromLocal(name); err == nil {
diff --git a/pkg/domain/infra/tunnel/manifest.go b/pkg/domain/infra/tunnel/manifest.go
index 22ca44165..c12ba0045 100644
--- a/pkg/domain/infra/tunnel/manifest.go
+++ b/pkg/domain/infra/tunnel/manifest.go
@@ -23,6 +23,15 @@ func (ir *ImageEngine) ManifestCreate(ctx context.Context, names, images []strin
 	return imageID, err
 }
 
+// ManifestExists checks if a manifest list with the given name exists
+func (ir *ImageEngine) ManifestExists(ctx context.Context, name string) (*entities.BoolReport, error) {
+	exists, err := manifests.Exists(ir.ClientCtx, name, nil)
+	if err != nil {
+		return nil, err
+	}
+	return &entities.BoolReport{Value: exists}, nil
+}
+
 // ManifestInspect returns contents of manifest list with given name
 func (ir *ImageEngine) ManifestInspect(ctx context.Context, name string) ([]byte, error) {
 	list, err := manifests.Inspect(ir.ClientCtx, name, nil)