1 files changed, 116 insertions, 0 deletions
diff --git a/cmd/kpod/load.go b/cmd/kpod/load.go
new file mode 100644
index 000000000..b1cff1e88
--- /dev/null
+++ b/cmd/kpod/load.go
@@ -0,0 +1,116 @@
+package main
+
+import (
+	"io"
+	"io/ioutil"
+	"os"
+
+	"github.com/kubernetes-incubator/cri-o/libpod"
+	"github.com/pkg/errors"
+	"github.com/urfave/cli"
+)
+
+var (
+	loadFlags = []cli.Flag{
+		cli.StringFlag{
+			Name:  "input, i",
+			Usage: "Read from archive file, default is STDIN",
+			Value: "/dev/stdin",
+		},
+		cli.BoolFlag{
+			Name:  "quiet, q",
+			Usage: "Suppress the output",
+		},
+		cli.StringFlag{
+			Name:  "signature-policy",
+			Usage: "`pathname` of signature policy file (not usually used)",
+		},
+	}
+	loadDescription = "Loads the image from docker-archive stored on the local machine."
+	loadCommand     = cli.Command{
+		Name:        "load",
+		Usage:       "load an image from docker archive",
+		Description: loadDescription,
+		Flags:       loadFlags,
+		Action:      loadCmd,
+		ArgsUsage:   "",
+	}
+)
+
+// 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 {
+
+	args := c.Args()
+	var image string
+	if len(args) == 1 {
+		image = args[0]
+	}
+	if len(args) > 1 {
+		return errors.New("too many arguments. Requires exactly 1")
+	}
+	if err := validateFlags(c, loadFlags); err != nil {
+		return err
+	}
+
+	runtime, err := getRuntime(c)
+	if err != nil {
+		return errors.Wrapf(err, "could not get runtime")
+	}
+	defer runtime.Shutdown(false)
+
+	input := c.String("input")
+
+	if input == "/dev/stdin" {
+		fi, err := os.Stdin.Stat()
+		if err != nil {
+			return err
+		}
+		// checking if loading from pipe
+		if !fi.Mode().IsRegular() {
+			outFile, err := ioutil.TempFile("/var/tmp", "kpod")
+			if err != nil {
+				return errors.Errorf("error creating file %v", err)
+			}
+			defer outFile.Close()
+			defer os.Remove(outFile.Name())
+
+			inFile, err := os.OpenFile(input, 0, 0666)
+			if err != nil {
+				return errors.Errorf("error reading file %v", err)
+			}
+			defer inFile.Close()
+
+			_, err = io.Copy(outFile, inFile)
+			if err != nil {
+				return errors.Errorf("error copying file %v", err)
+			}
+
+			input = outFile.Name()
+		}
+	}
+
+	var writer io.Writer
+	if !c.Bool("quiet") {
+		writer = os.Stdout
+	}
+
+	options := libpod.CopyOptions{
+		SignaturePolicyPath: c.String("signature-policy"),
+		Writer:              writer,
+	}
+
+	src := libpod.DockerArchive + ":" + input
+	if err := runtime.PullImage(src, options); err != nil {
+		src = libpod.OCIArchive + ":" + input
+		// generate full src name with specified image:tag
+		if image != "" {
+			src = src + ":" + image
+		}
+		if err := runtime.PullImage(src, options); err != nil {
+			return errors.Wrapf(err, "error pulling %q", src)
+		}
+	}
+
+	return nil
+}