Add docker prune command and ACI implementation

Signed-off-by: Guillaume Tardif <guillaume.tardif@docker.com>

api/client/client.go

@@ -21,6 +21,7 @@ import (
 
 	"github.com/docker/compose-cli/api/compose"
 	"github.com/docker/compose-cli/api/containers"
+	"github.com/docker/compose-cli/api/resources"
 	"github.com/docker/compose-cli/api/secrets"
 	"github.com/docker/compose-cli/api/volumes"
 	"github.com/docker/compose-cli/backend"
@@ -107,3 +108,12 @@ func (c *Client) VolumeService() volumes.Service {
 
 	return &volumeService{}
 }
+
+// ResourceService returns the backend service for the current context
+func (c *Client) ResourceService() resources.Service {
+	if vs := c.bs.ResourceService(); vs != nil {
+		return vs
+	}
+
+	return &resourceService{}
+}

api/client/resources.go

@@ -0,0 +1,32 @@
+/*
+   Copyright 2020 Docker Compose CLI authors
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+package client
+
+import (
+	"context"
+
+	"github.com/docker/compose-cli/api/resources"
+	"github.com/docker/compose-cli/errdefs"
+)
+
+type resourceService struct {
+}
+
+// Prune prune resources
+func (c *resourceService) Prune(ctx context.Context, request resources.PruneRequest) ([]string, error) {
+	return nil, errdefs.ErrNotImplemented
+}