storage/storage_image.go
func newImageDestination(imageRef storageReference) (*storageImageDestination, error) {
	directory, err := ioutil.TempDir(tmpdir.TemporaryDirectoryForBigFiles(), "storage")
	if err != nil {
		return nil, errors.Wrapf(err, "error creating a temporary directory")
	}
	image := &storageImageDestination{
		imageRef:       imageRef,
		directory:      directory,
		blobDiffIDs:    make(map[digest.Digest]digest.Digest),
		fileSizes:      make(map[digest.Digest]int64),
		filenames:      make(map[digest.Digest]string),
		SignatureSizes: []int{},
	}
	return image, nil
}
func newImageDestination(imageRef storageReference) (*storageImageDestination, error) {
	directory, err := ioutil.TempDir(tmpdir.TemporaryDirectoryForBigFiles(), "storage")
	if err != nil {
		return nil, errors.Wrapf(err, "error creating a temporary directory")
	}
	image := &storageImageDestination{
		imageRef:       imageRef,
		directory:      directory,
		blobDiffIDs:    make(map[digest.Digest]digest.Digest),
		fileSizes:      make(map[digest.Digest]int64),
		filenames:      make(map[digest.Digest]string),
		SignatureSizes: []int{},
	}
	return image, nil
}
func newImageDestination ( imageRef storageReference ) ( * storageImageDestination , error ) { directory , err := ioutil . TempDir ( tmpdir . TemporaryDirectoryForBigFiles ( ) , " " ) if err != nil { return nil , errors . Wrapf ( err , " " ) } image := & storageImageDestination { imageRef : imageRef , directory : directory , blobDiffIDs : make ( map [ digest . Digest ] digest . Digest ) , fileSizes : make ( map [ digest . Digest ] int64 ) , filenames : make ( map [ digest . Digest ] string ) , SignatureSizes : [ ] int { } , } return image , nil }
// newImageDestination sets us up to write a new image, caching blobs in a temporary directory until
// it's time to Commit() the image
newImageDestination sets us up to write a new image caching blobs in a temporary directory until it s time to Commit () the image