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

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package client
import (
"fmt"
"io"
"net/url"
"github.com/docker/docker/opts"
flag "github.com/docker/docker/pkg/mflag"
"github.com/docker/docker/pkg/parsers"
"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. If the URL is '-', then the tar file is read from STDIN.
//
// Usage: docker import [OPTIONS] URL [REPOSITORY[:TAG]]
func (cli *DockerCli) CmdImport(args ...string) error {
cmd := cli.Subcmd("import", "URL|- [REPOSITORY[:TAG]]", "Create an empty filesystem image and import the contents of the\ntarball (.tar, .tar.gz, .tgz, .bzip, .tar.xz, .txz) into it, then\noptionally tag it.", true)
flChanges := opts.NewListOpts(nil)
cmd.Var(&flChanges, []string{"c", "-change"}, "Apply Dockerfile instruction to the created image")
cmd.Require(flag.Min, 1)
cmd.ParseFlags(args, true)
var (
v = url.Values{}
src = cmd.Arg(0)
repository = cmd.Arg(1)
)
v.Set("fromSrc", src)
v.Set("repo", repository)
for _, change := range flChanges.GetAll() {
v.Add("changes", change)
}
if cmd.NArg() == 3 {
fmt.Fprintf(cli.err, "[DEPRECATED] The format 'URL|- [REPOSITORY [TAG]]' has been deprecated. Please use URL|- [REPOSITORY[:TAG]]\n")
v.Set("tag", cmd.Arg(2))
}
if repository != "" {
//Check if the given image name can be resolved
repo, _ := parsers.ParseRepositoryTag(repository)
if err := registry.ValidateRepositoryName(repo); err != nil {
return err
}
}
var in io.Reader
if src == "-" {
in = cli.in
}
sopts := &streamOpts{
rawTerminal: true,
in: in,
out: cli.out,
}
return cli.stream("POST", "/images/create?"+v.Encode(), sopts)
}