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moby--moby/api/client/container/diff.go
Daniel Nephin 31bf9ca0c8 Update unit tests for new cobra root command.
Cleanup cobra integration
Update windows files for cobra and pflags
Cleanup SetupRootcmd, and remove unnecessary SetFlagErrorFunc.
Use cobra command traversal

Signed-off-by: Daniel Nephin <dnephin@docker.com>
2016-08-25 13:09:04 -04:00

58 lines
1.2 KiB
Go

package container
import (
"fmt"
"golang.org/x/net/context"
"github.com/docker/docker/api/client"
"github.com/docker/docker/cli"
"github.com/docker/docker/pkg/archive"
"github.com/spf13/cobra"
)
type diffOptions struct {
container string
}
// NewDiffCommand creates a new cobra.Command for `docker diff`
func NewDiffCommand(dockerCli *client.DockerCli) *cobra.Command {
var opts diffOptions
return &cobra.Command{
Use: "diff CONTAINER",
Short: "Inspect changes on a container's filesystem",
Args: cli.ExactArgs(1),
RunE: func(cmd *cobra.Command, args []string) error {
opts.container = args[0]
return runDiff(dockerCli, &opts)
},
}
}
func runDiff(dockerCli *client.DockerCli, opts *diffOptions) error {
if opts.container == "" {
return fmt.Errorf("Container name cannot be empty")
}
ctx := context.Background()
changes, err := dockerCli.Client().ContainerDiff(ctx, opts.container)
if err != nil {
return err
}
for _, change := range changes {
var kind string
switch change.Kind {
case archive.ChangeModify:
kind = "C"
case archive.ChangeAdd:
kind = "A"
case archive.ChangeDelete:
kind = "D"
}
fmt.Fprintf(dockerCli.Out(), "%s %s\n", kind, change.Path)
}
return nil
}