1 files changed, 133 insertions, 0 deletions
diff --git a/cmd/podman/networks/list.go b/cmd/podman/networks/list.go
new file mode 100644
index 000000000..e27062255
--- /dev/null
+++ b/cmd/podman/networks/list.go
@@ -0,0 +1,133 @@
+package network
+
+import (
+	"encoding/json"
+	"fmt"
+	"html/template"
+	"io"
+	"os"
+	"strings"
+
+	"github.com/containers/libpod/cmd/podman/validate"
+
+	"github.com/containers/libpod/cmd/podman/registry"
+	"github.com/containers/libpod/pkg/domain/entities"
+	"github.com/containers/libpod/pkg/network"
+	"github.com/spf13/cobra"
+	"github.com/spf13/pflag"
+)
+
+var (
+	networklistDescription = `List networks`
+	networklistCommand     = &cobra.Command{
+		Use:     "ls",
+		Args:    validate.NoArgs,
+		Short:   "network list",
+		Long:    networklistDescription,
+		RunE:    networkList,
+		Example: `podman network list`,
+		Annotations: map[string]string{
+			registry.ParentNSRequired: "",
+		},
+	}
+)
+
+var (
+	networkListOptions entities.NetworkListOptions
+	headers            string = "NAME\tVERSION\tPLUGINS\n"
+	defaultListRow     string = "{{.Name}}\t{{.Version}}\t{{.Plugins}}\n"
+)
+
+func networkListFlags(flags *pflag.FlagSet) {
+	// TODO enable filters based on something
+	//flags.StringSliceVarP(&networklistCommand.Filter, "filter", "f",  []string{}, "Pause all running containers")
+	flags.StringVarP(&networkListOptions.Format, "format", "f", "", "Pretty-print containers to JSON or using a Go template")
+	flags.BoolVarP(&networkListOptions.Quiet, "quiet", "q", false, "display only names")
+}
+
+func init() {
+	registry.Commands = append(registry.Commands, registry.CliCommand{
+		Mode:    []entities.EngineMode{entities.ABIMode},
+		Command: networklistCommand,
+		Parent:  networkCmd,
+	})
+	flags := networklistCommand.Flags()
+	networkListFlags(flags)
+}
+
+func networkList(cmd *cobra.Command, args []string) error {
+	var (
+		w     io.Writer = os.Stdout
+		nlprs []NetworkListPrintReports
+	)
+
+	responses, err := registry.ContainerEngine().NetworkList(registry.Context(), networkListOptions)
+	if err != nil {
+		return err
+	}
+
+	// quiet means we only print the network names
+	if networkListOptions.Quiet {
+		return quietOut(responses)
+	}
+
+	if networkListOptions.Format == "json" {
+		return jsonOut(responses)
+	}
+
+	for _, r := range responses {
+		nlprs = append(nlprs, NetworkListPrintReports{r})
+	}
+
+	row := networkListOptions.Format
+	if len(row) < 1 {
+		row = defaultListRow
+	}
+	if !strings.HasSuffix(row, "\n") {
+		row += "\n"
+	}
+
+	format := "{{range . }}" + row + "{{end}}"
+	if !cmd.Flag("format").Changed {
+		format = headers + format
+	}
+	tmpl, err := template.New("listNetworks").Parse(format)
+	if err != nil {
+		return err
+	}
+	if err := tmpl.Execute(w, nlprs); err != nil {
+		return err
+	}
+	if flusher, ok := w.(interface{ Flush() error }); ok {
+		return flusher.Flush()
+	}
+	return nil
+}
+
+func quietOut(responses []*entities.NetworkListReport) error {
+	for _, r := range responses {
+		fmt.Println(r.Name)
+	}
+	return nil
+}
+
+func jsonOut(responses []*entities.NetworkListReport) error {
+	b, err := json.MarshalIndent(responses, "", "  ")
+	if err != nil {
+		return err
+	}
+	fmt.Println(string(b))
+	return nil
+}
+
+type NetworkListPrintReports struct {
+	*entities.NetworkListReport
+}
+
+func (n NetworkListPrintReports) Version() string {
+	return n.CNIVersion
+}
+
+func (n NetworkListPrintReports) Plugins() string {
+	return network.GetCNIPlugins(n.NetworkConfigList)
+}