feat(version): add platform version to client object (#47)

Author: Joshua-Anderson

deis.go

@@ -77,6 +77,9 @@ type Client struct {
 	// API Version used by the controller, set after a http request.
 	ControllerAPIVersion string
 
+	// Version of the deis platform in use, set after a http request.
+	DeisVersion string
+
 	// Token is used to authenticate the request against the API.
 	Token string
 }

http.go

@@ -61,8 +61,9 @@ func (c *Client) Request(method string, path string, body []byte) (*http.Respons
 
 	apiVersion := res.Header.Get("DEIS_API_VERSION")
 
-	// Update controller api version
+	// Update controller api and platform version
 	c.ControllerAPIVersion = apiVersion
+	c.DeisVersion = res.Header.Get("DEIS_PLATFORM_VERSION")
 
 	// Return results along with api compatibility error
 	return res, checkAPICompatibility(apiVersion)

http_test.go

@@ -9,7 +9,8 @@ import (
 )
 
 type fakeHTTPServer struct {
-	Version string
+	Version         string
+	PlatformVersion string
 }
 
 const limitedFixture string = `
@@ -30,6 +31,7 @@ const limitedFixture string = `
 
 func (f fakeHTTPServer) ServeHTTP(res http.ResponseWriter, req *http.Request) {
 	res.Header().Add("DEIS_API_VERSION", f.Version)
+	res.Header().Add("DEIS_PLATFORM_VERSION", f.PlatformVersion)
 
 	eA := "test"
 
@@ -136,7 +138,7 @@ func TestAPIMistmatch(t *testing.T) {
 func TestBasicRequest(t *testing.T) {
 	t.Parallel()
 
-	handler := fakeHTTPServer{Version: APIVersion}
+	handler := fakeHTTPServer{Version: APIVersion, PlatformVersion: "v9000"}
 	server := httptest.NewServer(handler)
 	defer server.Close()
 
@@ -162,6 +164,10 @@ func TestBasicRequest(t *testing.T) {
 		t.Errorf("Expected %s, Got %s", handler.Version, deis.ControllerAPIVersion)
 	}
 
+	if deis.DeisVersion != handler.PlatformVersion {
+		t.Errorf("Expected %s, Got %s", handler.PlatformVersion, deis.DeisVersion)
+	}
+
 	// Make sure the request doesn't modify the URL
 	if deis.ControllerURL.String() != server.URL {
 		t.Errorf("Expected %s, Got %s", server.URL, deis.ControllerURL.String())