File: verify.go

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continuity 0.0~git20180216.d8fb858-1
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package commands

import (
	"io/ioutil"
	"log"

	"github.com/containerd/continuity"
	"github.com/spf13/cobra"
)

var VerifyCmd = &cobra.Command{
	Use:   "verify <root> [<manifest>]",
	Short: "Verify the root against the provided manifest",
	Run: func(cmd *cobra.Command, args []string) {
		if len(args) != 2 {
			log.Fatalln("please specify a root and manifest")
		}

		root, path := args[0], args[1]

		p, err := ioutil.ReadFile(path)
		if err != nil {
			log.Fatalf("error reading manifest: %v", err)
		}

		m, err := continuity.Unmarshal(p)
		if err != nil {
			log.Fatalf("error unmarshaling manifest: %v", err)
		}

		ctx, err := continuity.NewContext(root)
		if err != nil {
			log.Fatalf("error getting context: %v", err)
		}

		if err := continuity.VerifyManifest(ctx, m); err != nil {
			// TODO(stevvooe): Support more interesting error reporting.
			log.Fatalf("error verifying manifest: %v", err)
		}
	},
}