Move deps from _workspace/ to vendor/

godep restore
pushd $GOPATH/src/github.com/appc/spec
git co master
popd
go get go4.org/errorutil
rm -rf Godeps
godep save ./...
git add vendor
git add -f $(git ls-files --other vendor/)
git co -- Godeps/LICENSES Godeps/.license_file_state Godeps/OWNERS

vendor/github.com/docker/engine-api/client/image_search.go

@@ -0,0 +1,40 @@
+package client
+
+import (
+	"encoding/json"
+	"net/http"
+	"net/url"
+
+	"github.com/docker/engine-api/types"
+	"github.com/docker/engine-api/types/registry"
+	"golang.org/x/net/context"
+)
+
+// ImageSearch makes the docker host to search by a term in a remote registry.
+// The list of results is not sorted in any fashion.
+func (cli *Client) ImageSearch(ctx context.Context, term string, options types.ImageSearchOptions) ([]registry.SearchResult, error) {
+	var results []registry.SearchResult
+	query := url.Values{}
+	query.Set("term", term)
+
+	resp, err := cli.tryImageSearch(ctx, query, options.RegistryAuth)
+	if resp.statusCode == http.StatusUnauthorized {
+		newAuthHeader, privilegeErr := options.PrivilegeFunc()
+		if privilegeErr != nil {
+			return results, privilegeErr
+		}
+		resp, err = cli.tryImageSearch(ctx, query, newAuthHeader)
+	}
+	if err != nil {
+		return results, err
+	}
+
+	err = json.NewDecoder(resp.body).Decode(&results)
+	ensureReaderClosed(resp)
+	return results, err
+}
+
+func (cli *Client) tryImageSearch(ctx context.Context, query url.Values, registryAuth string) (*serverResponse, error) {
+	headers := map[string][]string{"X-Registry-Auth": {registryAuth}}
+	return cli.get(ctx, "/images/search", query, headers)
+}