46 lines
916 B
Go
46 lines
916 B
Go
package main
|
|
|
|
import (
|
|
"io"
|
|
"os"
|
|
|
|
contentapi "github.com/containerd/containerd/api/services/content"
|
|
contentservice "github.com/containerd/containerd/services/content"
|
|
digest "github.com/opencontainers/go-digest"
|
|
"github.com/urfave/cli"
|
|
)
|
|
|
|
var getCommand = cli.Command{
|
|
Name: "get",
|
|
Usage: "get the data for an object",
|
|
ArgsUsage: "[flags] [<digest>, ...]",
|
|
Description: "Display the image object.",
|
|
Flags: []cli.Flag{},
|
|
Action: func(context *cli.Context) error {
|
|
var (
|
|
ctx = background
|
|
)
|
|
|
|
dgst, err := digest.Parse(context.Args().First())
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
conn, err := connectGRPC(context)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
cs := contentservice.NewProviderFromClient(contentapi.NewContentClient(conn))
|
|
|
|
rc, err := cs.Reader(ctx, dgst)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer rc.Close()
|
|
|
|
_, err = io.Copy(os.Stdout, rc)
|
|
return err
|
|
},
|
|
}
|