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moby--moby/graph/import.go
Aaron Lehmann 1f61084d83 Fix uses of "int" where "int64" should be used instead
Some structures use int for sizes and UNIX timestamps. On some
platforms, int is 32 bits, so this can lead to the year 2038 issues and
overflows when dealing with large containers or layers.

Consistently use int64 to store sizes and UNIX timestamps in
api/types/types.go. Update related to code accordingly (i.e.
strconv.FormatInt instead of strconv.Itoa).

Use int64 in progressreader package to avoid integer overflow when
dealing with large quantities. Update related code accordingly.

Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
2015-07-31 16:31:40 -07:00

75 lines
1.9 KiB
Go

package graph
import (
"io"
"net/http"
"net/url"
"github.com/docker/docker/pkg/archive"
"github.com/docker/docker/pkg/httputils"
"github.com/docker/docker/pkg/progressreader"
"github.com/docker/docker/pkg/streamformatter"
"github.com/docker/docker/runconfig"
"github.com/docker/docker/utils"
)
// Import imports an image, getting the archived layer data either from
// inConfig (if src is "-"), or from a URI specified in src. Progress output is
// written to outStream. Repository and tag names can optionally be given in
// the repo and tag arguments, respectively.
func (s *TagStore) Import(src string, repo string, tag string, inConfig io.ReadCloser, outStream io.Writer, containerConfig *runconfig.Config) error {
var (
sf = streamformatter.NewJSONStreamFormatter()
archive archive.ArchiveReader
resp *http.Response
)
if src == "-" {
archive = inConfig
} else {
u, err := url.Parse(src)
if err != nil {
return err
}
if u.Scheme == "" {
u.Scheme = "http"
u.Host = src
u.Path = ""
}
outStream.Write(sf.FormatStatus("", "Downloading from %s", u))
resp, err = httputils.Download(u.String())
if err != nil {
return err
}
progressReader := progressreader.New(progressreader.Config{
In: resp.Body,
Out: outStream,
Formatter: sf,
Size: resp.ContentLength,
NewLines: true,
ID: "",
Action: "Importing",
})
defer progressReader.Close()
archive = progressReader
}
img, err := s.graph.Create(archive, "", "", "Imported from "+src, "", nil, containerConfig)
if err != nil {
return err
}
// Optionally register the image at REPO/TAG
if repo != "" {
if err := s.Tag(repo, tag, img.ID, true); err != nil {
return err
}
}
outStream.Write(sf.FormatStatus("", img.ID))
logID := img.ID
if tag != "" {
logID = utils.ImageReference(logID, tag)
}
s.eventsService.Log("import", logID, "")
return nil
}