Migrate to cobra CLI

We intend to migrate to the cobra cli from urfave/cli because the
project is more well maintained.  There are also some technical reasons
as well which extend into our remote client work.

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

1 files changed, 27 insertions, 24 deletions

diff --git a/cmd/podman/export.go b/cmd/podman/export.go
index eaa4e38a2..bd9e38b0c 100644
--- a/cmd/podman/export.go
+++ b/cmd/podman/export.go
@@ -3,50 +3,52 @@ package main
 import (
 	"os"
 
+	"github.com/containers/libpod/cmd/podman/cliconfig"
 	"github.com/containers/libpod/libpod/adapter"
 	"github.com/containers/libpod/pkg/rootless"
 	"github.com/pkg/errors"
 	"github.com/sirupsen/logrus"
-	"github.com/urfave/cli"
+	"github.com/spf13/cobra"
 )
 
 var (
-	exportFlags = []cli.Flag{
-		cli.StringFlag{
-			Name:  "output, o",
-			Usage: "Write to a file, default is STDOUT",
-			Value: "/dev/stdout",
-		},
-	}
+	exportCommand     cliconfig.ExportValues
 	exportDescription = "Exports container's filesystem contents as a tar archive" +
 		" and saves it on the local machine."
-	exportCommand = cli.Command{
-		Name:         "export",
-		Usage:        "Export container's filesystem contents as a tar archive",
-		Description:  exportDescription,
-		Flags:        sortFlags(exportFlags),
-		Action:       exportCmd,
-		ArgsUsage:    "CONTAINER",
-		OnUsageError: usageErrorHandler,
+
+	_exportCommand = &cobra.Command{
+		Use:   "export",
+		Short: "Export container's filesystem contents as a tar archive",
+		Long:  exportDescription,
+		RunE: func(cmd *cobra.Command, args []string) error {
+			exportCommand.InputArgs = args
+			exportCommand.GlobalFlags = MainGlobalOpts
+			return exportCmd(&exportCommand)
+		},
+		Example: "CONTAINER",
 	}
 )
 
+func init() {
+	exportCommand.Command = _exportCommand
+	flags := exportCommand.Flags()
+	flags.StringVarP(&exportCommand.Output, "output", "o", "/dev/stdout", "Write to a file, default is STDOUT")
+	rootCmd.AddCommand(exportCommand.Command)
+}
+
 // exportCmd saves a container to a tarball on disk
-func exportCmd(c *cli.Context) error {
-	if err := validateFlags(c, exportFlags); err != nil {
-		return err
-	}
+func exportCmd(c *cliconfig.ExportValues) error {
 	if os.Geteuid() != 0 {
 		rootless.SetSkipStorageSetup(true)
 	}
 
-	runtime, err := adapter.GetRuntime(c)
+	runtime, err := adapter.GetRuntime(&c.PodmanCommand)
 	if err != nil {
 		return errors.Wrapf(err, "could not get runtime")
 	}
 	defer runtime.Shutdown(false)
 
-	args := c.Args()
+	args := c.InputArgs
 	if len(args) == 0 {
 		return errors.Errorf("container id must be specified")
 	}
@@ -54,10 +56,11 @@ func exportCmd(c *cli.Context) error {
 		return errors.Errorf("too many arguments given, need 1 at most.")
 	}
 
-	output := c.String("output")
+	output := c.Output
 	if runtime.Remote && (output == "/dev/stdout" || len(output) == 0) {
 		return errors.New("remote client usage must specify an output file (-o)")
 	}
+
 	if output == "/dev/stdout" {
 		file := os.Stdout
 		if logrus.IsTerminal(file) {
@@ -68,5 +71,5 @@ func exportCmd(c *cli.Context) error {
 	if err := validateFileName(output); err != nil {
 		return err
 	}
-	return runtime.Export(args[0], c.String("output"))
+	return runtime.Export(args[0], output)
 }