Switch kpod load/push/save to use libpod runtime

Since this is the last use of libpod/images/copy.go,
removing that code

Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>

cmd/kpod/load.go

@@ -2,22 +2,14 @@ package main
 
 import (
 	"io"
+	"io/ioutil"
 	"os"
 
-	"io/ioutil"
-
-	"github.com/containers/storage"
 	"github.com/kubernetes-incubator/cri-o/libpod/images"
 	"github.com/pkg/errors"
 	"github.com/urfave/cli"
 )
 
-type loadOptions struct {
-	input string
-	quiet bool
-	image string
-}
-
 var (
 	loadFlags = []cli.Flag{
 		cli.StringFlag{
@@ -44,14 +36,6 @@ var (
 // loadCmd gets the image/file to be loaded from the command line
 // and calls loadImage to load the image to containers-storage
 func loadCmd(c *cli.Context) error {
-	config, err := getConfig(c)
-	if err != nil {
-		return errors.Wrapf(err, "could not get config")
-	}
-	store, err := getStore(config)
-	if err != nil {
-		return err
-	}
 
 	args := c.Args()
 	var image string
@@ -62,6 +46,11 @@ func loadCmd(c *cli.Context) error {
 		return errors.New("too many arguments. Requires exactly 1")
 	}
 
+	runtime, err := getRuntime(c)
+	if err != nil {
+		return errors.Wrapf(err, "could not get runtime")
+	}
+
 	input := c.String("input")
 
 	if input == "/dev/stdin" {
@@ -93,33 +82,21 @@ func loadCmd(c *cli.Context) error {
 		}
 	}
 
-	opts := loadOptions{
+	var output io.Writer
-		input: input,
+	if !c.Bool("quiet") {
-		quiet: c.Bool("quiet"),
+		output = os.Stdout
-		image: image,
 	}
-
+	src := images.DockerArchive + ":" + input
-	return loadImage(store, opts)
+	if err := runtime.PullImage(src, false, output); err != nil {
-}
+		src = images.OCIArchive + ":" + input
-
-// loadImage loads the image from docker-archive or oci to containers-storage
-// using the pullImage function
-func loadImage(store storage.Store, opts loadOptions) error {
-	loadOpts := images.CopyOptions{
-		Quiet: opts.quiet,
-		Store: store,
-	}
-
-	src := images.DockerArchive + ":" + opts.input
-	if err := images.PullImage(src, false, loadOpts); err != nil {
-		src = images.OCIArchive + ":" + opts.input
 		// generate full src name with specified image:tag
-		if opts.image != "" {
+		if image != "" {
-			src = src + ":" + opts.image
+			src = src + ":" + image
 		}
-		if err := images.PullImage(src, false, loadOpts); err != nil {
+		if err := runtime.PullImage(src, false, output); err != nil {
-			return errors.Wrapf(err, "error pulling from %q", opts.input)
+			return errors.Wrapf(err, "error pulling %q", src)
 		}
 	}
+
 	return nil
 }

cmd/kpod/push.go

@@ -2,12 +2,13 @@ package main
 
 import (
 	"fmt"
+	"io"
 	"os"
 
 	"github.com/containers/image/types"
 	"github.com/containers/storage/pkg/archive"
+	"github.com/kubernetes-incubator/cri-o/libpod"
 	"github.com/kubernetes-incubator/cri-o/libpod/common"
-	"github.com/kubernetes-incubator/cri-o/libpod/images"
 	"github.com/pkg/errors"
 	"github.com/urfave/cli"
 	"golang.org/x/crypto/ssh/terminal"
@@ -70,7 +71,6 @@ func pushCmd(c *cli.Context) error {
 	srcName := c.Args().Get(0)
 	destName := c.Args().Get(1)
 
-	signaturePolicy := c.String("signature-policy")
 	registryCredsString := c.String("creds")
 	certPath := c.String("cert-dir")
 	skipVerify := !c.BoolT("tls-verify")
@@ -94,19 +94,19 @@ func pushCmd(c *cli.Context) error {
 		registryCreds = creds
 	}
 
-	config, err := getConfig(c)
+	runtime, err := getRuntime(c)
 	if err != nil {
-		return errors.Wrapf(err, "Could not get config")
+		return errors.Wrapf(err, "could not create runtime")
-	}
-	store, err := getStore(config)
-	if err != nil {
-		return err
 	}
 
-	options := images.CopyOptions{
+	var writer io.Writer
+	if !c.Bool("quiet") {
+		writer = os.Stdout
+	}
+
+	options := libpod.CopyOptions{
 		Compression:         archive.Uncompressed,
-		SignaturePolicyPath: signaturePolicy,
+		SignaturePolicyPath: c.String("signature-policy"),
-		Store:               store,
 		DockerRegistryOptions: common.DockerRegistryOptions{
 			DockerRegistryCreds:         registryCreds,
 			DockerCertPath:              certPath,
@@ -117,8 +117,6 @@ func pushCmd(c *cli.Context) error {
 			SignBy:           signBy,
 		},
 	}
-	if !c.Bool("quiet") {
+
-		options.ReportWriter = os.Stderr
+	return runtime.PushImage(srcName, destName, options, writer)
-	}
-	return images.PushImage(srcName, destName, options)
 }

cmd/kpod/save.go

@@ -1,22 +1,16 @@
 package main
 
 import (
+	"io"
 	"os"
 
-	"github.com/containers/storage"
+	"github.com/kubernetes-incubator/cri-o/libpod"
 	"github.com/kubernetes-incubator/cri-o/libpod/images"
 	"github.com/pkg/errors"
 	"github.com/sirupsen/logrus"
 	"github.com/urfave/cli"
 )
 
-type saveOptions struct {
-	output string
-	quiet  bool
-	format string
-	images []string
-}
-
 var (
 	saveFlags = []cli.Flag{
 		cli.StringFlag{
@@ -54,17 +48,16 @@ func saveCmd(c *cli.Context) error {
 		return errors.Errorf("need at least 1 argument")
 	}
 
-	config, err := getConfig(c)
+	runtime, err := getRuntime(c)
 	if err != nil {
-		return errors.Wrapf(err, "could not get config")
+		return errors.Wrapf(err, "could not create runtime")
 	}
-	store, err := getStore(config)
+	var writer io.Writer
-	if err != nil {
+	if !c.Bool("quiet") {
-		return err
+		writer = os.Stdout
 	}
 
 	output := c.String("output")
-
 	if output == "/dev/stdout" {
 		fi := os.Stdout
 		if logrus.IsTerminal(fi) {
@@ -72,41 +65,27 @@ func saveCmd(c *cli.Context) error {
 		}
 	}
 
-	opts := saveOptions{
-		output: output,
-		quiet:  c.Bool("quiet"),
-		format: c.String("format"),
-		images: args,
-	}
-
-	return saveImage(store, opts)
-}
-
-// saveImage pushes the image to docker-archive or oci by
-// calling pushImage
-func saveImage(store storage.Store, opts saveOptions) error {
 	var dst string
-	switch opts.format {
+	switch c.String("format") {
 	case images.OCIArchive:
-		dst = images.OCIArchive + ":" + opts.output
+		dst = images.OCIArchive + ":" + output
 	case images.DockerArchive:
 		fallthrough
 	case "":
-		dst = images.DockerArchive + ":" + opts.output
+		dst = images.DockerArchive + ":" + output
 	default:
-		return errors.Errorf("unknown format option %q", opts.format)
+		return errors.Errorf("unknown format option %q", c.String("format"))
 	}
 
-	saveOpts := images.CopyOptions{
+	saveOpts := libpod.CopyOptions{
 		SignaturePolicyPath: "",
-		Store:               store,
 	}
 
 	// only one image is supported for now
 	// future pull requests will fix this
-	for _, image := range opts.images {
+	for _, image := range args {
 		dest := dst + ":" + image
-		if err := images.PushImage(image, dest, saveOpts); err != nil {
+		if err := runtime.PushImage(image, dest, saveOpts, writer); err != nil {
 			return errors.Wrapf(err, "unable to save %q", image)
 		}
 	}

cmd/kpod/tag.go

@@ -50,7 +50,7 @@ func addImageNames(runtime *libpod.Runtime, image *storage.Image, addNames []str
 	}
 	for _, name := range names {
 		if err := runtime.TagImage(image, name); err != nil {
-			return errors.Wrapf(err, "error adding names (%v) to image %q", name, image.ID)
+			return errors.Wrapf(err, "error adding name (%v) to image %q", name, image.ID)
 		}
 	}
 	return nil