Move api/client -> cli/command

Using
  gomvpkg
     -from github.com/docker/docker/api/client
     -to github.com/docker/docker/cli/command
     -vcs_mv_cmd 'git mv {{.Src}} {{.Dst}}'

Signed-off-by: Daniel Nephin <dnephin@docker.com>

command/stack/common.go

@@ -0,0 +1,50 @@
+// +build experimental
+
+package stack
+
+import (
+	"golang.org/x/net/context"
+
+	"github.com/docker/docker/api/types"
+	"github.com/docker/docker/api/types/filters"
+	"github.com/docker/docker/api/types/swarm"
+	"github.com/docker/docker/client"
+)
+
+const (
+	labelNamespace = "com.docker.stack.namespace"
+)
+
+func getStackLabels(namespace string, labels map[string]string) map[string]string {
+	if labels == nil {
+		labels = make(map[string]string)
+	}
+	labels[labelNamespace] = namespace
+	return labels
+}
+
+func getStackFilter(namespace string) filters.Args {
+	filter := filters.NewArgs()
+	filter.Add("label", labelNamespace+"="+namespace)
+	return filter
+}
+
+func getServices(
+	ctx context.Context,
+	apiclient client.APIClient,
+	namespace string,
+) ([]swarm.Service, error) {
+	return apiclient.ServiceList(
+		ctx,
+		types.ServiceListOptions{Filter: getStackFilter(namespace)})
+}
+
+func getNetworks(
+	ctx context.Context,
+	apiclient client.APIClient,
+	namespace string,
+) ([]types.NetworkResource, error) {
+	return apiclient.NetworkList(
+		ctx,
+		types.NetworkListOptions{Filters: getStackFilter(namespace)})
+}