update vendoring dependencies

vendor/github.com/docker/distribution/registry/api/v2/urls.go

@@ -5,7 +5,7 @@ import (
 	"net/url"
 	"strings"
 
-	"github.com/docker/distribution/digest"
+	"github.com/docker/distribution/reference"
 	"github.com/gorilla/mux"
 )
 
@@ -17,33 +17,35 @@ import (
 // under "/foo/v2/...". Most application will only provide a schema, host and
 // port, such as "https://localhost:5000/".
 type URLBuilder struct {
-	root   *url.URL // url root (ie http://localhost/)
-	router *mux.Router
+	root     *url.URL // url root (ie http://localhost/)
+	router   *mux.Router
+	relative bool
 }
 
 // NewURLBuilder creates a URLBuilder with provided root url object.
-func NewURLBuilder(root *url.URL) *URLBuilder {
+func NewURLBuilder(root *url.URL, relative bool) *URLBuilder {
 	return &URLBuilder{
-		root:   root,
-		router: Router(),
+		root:     root,
+		router:   Router(),
+		relative: relative,
 	}
 }
 
 // NewURLBuilderFromString workes identically to NewURLBuilder except it takes
 // a string argument for the root, returning an error if it is not a valid
 // url.
-func NewURLBuilderFromString(root string) (*URLBuilder, error) {
+func NewURLBuilderFromString(root string, relative bool) (*URLBuilder, error) {
 	u, err := url.Parse(root)
 	if err != nil {
 		return nil, err
 	}
 
-	return NewURLBuilder(u), nil
+	return NewURLBuilder(u, relative), nil
 }
 
 // NewURLBuilderFromRequest uses information from an *http.Request to
 // construct the root url.
-func NewURLBuilderFromRequest(r *http.Request) *URLBuilder {
+func NewURLBuilderFromRequest(r *http.Request, relative bool) *URLBuilder {
 	var scheme string
 
 	forwardedProto := r.Header.Get("X-Forwarded-Proto")
@@ -85,7 +87,7 @@ func NewURLBuilderFromRequest(r *http.Request) *URLBuilder {
 		u.Path = requestPath[0 : index+1]
 	}
 
-	return NewURLBuilder(u)
+	return NewURLBuilder(u, relative)
 }
 
 // BuildBaseURL constructs a base url for the API, typically just "/v2/".
@@ -113,10 +115,10 @@ func (ub *URLBuilder) BuildCatalogURL(values ...url.Values) (string, error) {
 }
 
 // BuildTagsURL constructs a url to list the tags in the named repository.
-func (ub *URLBuilder) BuildTagsURL(name string) (string, error) {
+func (ub *URLBuilder) BuildTagsURL(name reference.Named) (string, error) {
 	route := ub.cloneRoute(RouteNameTags)
 
-	tagsURL, err := route.URL("name", name)
+	tagsURL, err := route.URL("name", name.Name())
 	if err != nil {
 		return "", err
 	}
@@ -126,10 +128,18 @@ func (ub *URLBuilder) BuildTagsURL(name string) (string, error) {
 
 // BuildManifestURL constructs a url for the manifest identified by name and
 // reference. The argument reference may be either a tag or digest.
-func (ub *URLBuilder) BuildManifestURL(name, reference string) (string, error) {
+func (ub *URLBuilder) BuildManifestURL(ref reference.Named) (string, error) {
 	route := ub.cloneRoute(RouteNameManifest)
 
-	manifestURL, err := route.URL("name", name, "reference", reference)
+	tagOrDigest := ""
+	switch v := ref.(type) {
+	case reference.Tagged:
+		tagOrDigest = v.Tag()
+	case reference.Digested:
+		tagOrDigest = v.Digest().String()
+	}
+
+	manifestURL, err := route.URL("name", ref.Name(), "reference", tagOrDigest)
 	if err != nil {
 		return "", err
 	}
@@ -138,10 +148,10 @@ func (ub *URLBuilder) BuildManifestURL(name, reference string) (string, error) {
 }
 
 // BuildBlobURL constructs the url for the blob identified by name and dgst.
-func (ub *URLBuilder) BuildBlobURL(name string, dgst digest.Digest) (string, error) {
+func (ub *URLBuilder) BuildBlobURL(ref reference.Canonical) (string, error) {
 	route := ub.cloneRoute(RouteNameBlob)
 
-	layerURL, err := route.URL("name", name, "digest", dgst.String())
+	layerURL, err := route.URL("name", ref.Name(), "digest", ref.Digest().String())
 	if err != nil {
 		return "", err
 	}
@@ -151,10 +161,10 @@ func (ub *URLBuilder) BuildBlobURL(name string, dgst digest.Digest) (string, err
 
 // BuildBlobUploadURL constructs a url to begin a blob upload in the
 // repository identified by name.
-func (ub *URLBuilder) BuildBlobUploadURL(name string, values ...url.Values) (string, error) {
+func (ub *URLBuilder) BuildBlobUploadURL(name reference.Named, values ...url.Values) (string, error) {
 	route := ub.cloneRoute(RouteNameBlobUpload)
 
-	uploadURL, err := route.URL("name", name)
+	uploadURL, err := route.URL("name", name.Name())
 	if err != nil {
 		return "", err
 	}
@@ -166,10 +176,10 @@ func (ub *URLBuilder) BuildBlobUploadURL(name string, values ...url.Values) (str
 // including any url values. This should generally not be used by clients, as
 // this url is provided by server implementations during the blob upload
 // process.
-func (ub *URLBuilder) BuildBlobUploadChunkURL(name, uuid string, values ...url.Values) (string, error) {
+func (ub *URLBuilder) BuildBlobUploadChunkURL(name reference.Named, uuid string, values ...url.Values) (string, error) {
 	route := ub.cloneRoute(RouteNameBlobUploadChunk)
 
-	uploadURL, err := route.URL("name", name, "uuid", uuid)
+	uploadURL, err := route.URL("name", name.Name(), "uuid", uuid)
 	if err != nil {
 		return "", err
 	}
@@ -186,12 +196,13 @@ func (ub *URLBuilder) cloneRoute(name string) clonedRoute {
 	*route = *ub.router.GetRoute(name) // clone the route
 	*root = *ub.root
 
-	return clonedRoute{Route: route, root: root}
+	return clonedRoute{Route: route, root: root, relative: ub.relative}
 }
 
 type clonedRoute struct {
 	*mux.Route
-	root *url.URL
+	root     *url.URL
+	relative bool
 }
 
 func (cr clonedRoute) URL(pairs ...string) (*url.URL, error) {
@@ -200,11 +211,17 @@ func (cr clonedRoute) URL(pairs ...string) (*url.URL, error) {
 		return nil, err
 	}
 
+	if cr.relative {
+		return routeURL, nil
+	}
+
 	if routeURL.Scheme == "" && routeURL.User == nil && routeURL.Host == "" {
 		routeURL.Path = routeURL.Path[1:]
 	}
 
-	return cr.root.ResolveReference(routeURL), nil
+	url := cr.root.ResolveReference(routeURL)
+	url.Scheme = cr.root.Scheme
+	return url, nil
 }
 
 // appendValuesURL appends the parameters to the url.