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Merge pull request #15735 from tonistiigi/graph-register-readcloser

Browse source 
Make graph.Register take in io.Reader
This commit is contained in:
Alexander Morozov 2015-08-24 10:40:04 -07:00
commit 1544c5edb6
3 changed files with 14 additions and 13 deletions
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5
daemon/graphdriver/imagerestorer.go
View file

@ -1,8 +1,9 @@
package graphdriver
import (
"io"
"github.com/docker/docker/image"
"github.com/docker/docker/pkg/archive"
)
// NOTE: These interfaces are used for implementing specific features of the Windows
@ -26,5 +27,5 @@ type Tagger interface {
// functions without needing to import graph.
type Recorder interface {
Exists(id string) bool
Register(img *image.Image, layerData archive.Reader) error
Register(img *image.Image, layerData io.Reader) error
}

16
graph/graph.go
View file

@ -199,7 +199,7 @@ func (graph *Graph) Get(name string) (*image.Image, error) {
}
// Create creates a new image and registers it in the graph.
func (graph *Graph) Create(layerData archive.Reader, containerID, containerImage, comment, author string, containerConfig, config *runconfig.Config) (*image.Image, error) {
func (graph *Graph) Create(layerData io.Reader, containerID, containerImage, comment, author string, containerConfig, config *runconfig.Config) (*image.Image, error) {
img := &image.Image{
ID: stringid.GenerateRandomID(),
Comment: comment,
@ -224,7 +224,7 @@ func (graph *Graph) Create(layerData archive.Reader, containerID, containerImage
}
// Register imports a pre-existing image into the graph.
func (graph *Graph) Register(img *image.Image, layerData archive.Reader) (err error) {
func (graph *Graph) Register(img *image.Image, layerData io.Reader) (err error) {
if err := image.ValidateID(img.ID); err != nil {
return err
@ -286,7 +286,7 @@ func (graph *Graph) Register(img *image.Image, layerData archive.Reader) (err er
return nil
}
func createRootFilesystemInDriver(graph *Graph, img *image.Image, layerData archive.Reader) error {
func createRootFilesystemInDriver(graph *Graph, img *image.Image, layerData io.Reader) error {
if err := graph.driver.Create(img.ID, img.Parent); err != nil {
return fmt.Errorf("Driver %s failed to create image rootfs %s: %s", graph.driver, img.ID, err)
}
@ -451,7 +451,7 @@ func (graph *Graph) Heads() map[string]*image.Image {
}
// TarLayer returns a tar archive of the image's filesystem layer.
func (graph *Graph) TarLayer(img *image.Image) (arch archive.Archive, err error) {
func (graph *Graph) TarLayer(img *image.Image) (arch io.ReadCloser, err error) {
rdr, err := graph.assembleTarLayer(img)
if err != nil {
logrus.Debugf("[graph] TarLayer with traditional differ: %s", img.ID)
@ -556,7 +556,7 @@ func jsonPath(root string) string {
// storeImage stores file system layer data for the given image to the
// graph's storage driver. Image metadata is stored in a file
// at the specified root directory.
func (graph *Graph) storeImage(img *image.Image, layerData archive.Reader, root string) (err error) {
func (graph *Graph) storeImage(img *image.Image, layerData io.Reader, root string) (err error) {
// Store the layer. If layerData is not nil, unpack it into the new layer
if layerData != nil {
if err := graph.disassembleAndApplyTarLayer(img, layerData, root); err != nil {
@ -578,8 +578,8 @@ func (graph *Graph) storeImage(img *image.Image, layerData archive.Reader, root
return json.NewEncoder(f).Encode(img)
}
func (graph *Graph) disassembleAndApplyTarLayer(img *image.Image, layerData archive.Reader, root string) (err error) {
var ar archive.Reader
func (graph *Graph) disassembleAndApplyTarLayer(img *image.Image, layerData io.Reader, root string) (err error) {
var ar io.Reader
if graph.tarSplitDisabled {
ar = layerData
@ -617,7 +617,7 @@ func (graph *Graph) disassembleAndApplyTarLayer(img *image.Image, layerData arch
return nil
}
func (graph *Graph) assembleTarLayer(img *image.Image) (archive.Archive, error) {
func (graph *Graph) assembleTarLayer(img *image.Image) (io.ReadCloser, error) {
root := graph.imageRoot(img.ID)
mFileName := filepath.Join(root, tarDataFileName)
mf, err := os.Open(mFileName)

6
graph/import.go
View file

@ -5,7 +5,6 @@ import (
"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"
@ -20,13 +19,14 @@ import (
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.Reader
archive io.ReadCloser
resp *http.Response
)
if src == "-" {
archive = inConfig
} else {
inConfig.Close()
u, err := url.Parse(src)
if err != nil {
return err
@ -50,10 +50,10 @@ func (s *TagStore) Import(src string, repo string, tag string, inConfig io.ReadC
ID: "",
Action: "Importing",
})
defer progressReader.Close()
archive = progressReader
}
defer archive.Close()
img, err := s.graph.Create(archive, "", "", "Imported from "+src, "", nil, containerConfig)
if err != nil {
return err