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moby--moby/api/client/import.go

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package client
import (
"fmt"
"io"
"os"
"github.com/docker/docker/api/types"
Cli "github.com/docker/docker/cli"
"github.com/docker/docker/opts"
"github.com/docker/docker/pkg/jsonmessage"
flag "github.com/docker/docker/pkg/mflag"
"github.com/docker/docker/pkg/urlutil"
"github.com/docker/docker/reference"
"github.com/docker/docker/registry"
)
// CmdImport creates an empty filesystem image, imports the contents of the tarball into the image, and optionally tags the image.
//
// The URL argument is the address of a tarball (.tar, .tar.gz, .tgz, .bzip, .tar.xz, .txz) file or a path to local file relative to docker client. If the URL is '-', then the tar file is read from STDIN.
//
// Usage: docker import [OPTIONS] file|URL|- [REPOSITORY[:TAG]]
func (cli *DockerCli) CmdImport(args ...string) error {
cmd := Cli.Subcmd("import", []string{"file|URL|- [REPOSITORY[:TAG]]"}, Cli.DockerCommands["import"].Description, true)
flChanges := opts.NewListOpts(nil)
cmd.Var(&flChanges, []string{"c", "-change"}, "Apply Dockerfile instruction to the created image")
message := cmd.String([]string{"m", "-message"}, "", "Set commit message for imported image")
cmd.Require(flag.Min, 1)
cmd.ParseFlags(args, true)
var (
in io.Reader
tag string
src = cmd.Arg(0)
srcName = src
repository = cmd.Arg(1)
changes = flChanges.GetAll()
)
if cmd.NArg() == 3 {
fmt.Fprintf(cli.err, "[DEPRECATED] The format 'file|URL|- [REPOSITORY [TAG]]' has been deprecated. Please use file|URL|- [REPOSITORY[:TAG]]\n")
tag = cmd.Arg(2)
}
if repository != "" {
//Check if the given image name can be resolved
ref, err := reference.ParseNamed(repository)
if err != nil {
return err
}
if err := registry.ValidateRepositoryName(ref); err != nil {
return err
}
}
if src == "-" {
in = cli.in
} else if !urlutil.IsURL(src) {
srcName = "-"
file, err := os.Open(src)
if err != nil {
return err
}
defer file.Close()
in = file
}
options := types.ImageImportOptions{
Source: in,
SourceName: srcName,
RepositoryName: repository,
Message: *message,
Tag: tag,
Changes: changes,
}
responseBody, err := cli.client.ImageImport(options)
if err != nil {
return err
}
defer responseBody.Close()
return jsonmessage.DisplayJSONMessagesStream(responseBody, cli.out, cli.outFd, cli.isTerminalOut)
}