Make the project spaces capability configurable

Some deployments don't want to show early stages of the spaces feature
set in the clients. It can now be disabled in the capabilities.

storage/pkg/command/frontend.go

@@ -294,7 +294,7 @@ func frontendConfigFromStruct(c *cli.Context, cfg *config.Config, filesCfg map[s
 							},
 							"spaces": map[string]interface{}{
 								"version": "0.0.1",
-								"enabled": true,
+								"enabled": cfg.Reva.Frontend.ProjectSpaces,
 							},
 						},
 						"version": map[string]interface{}{

storage/pkg/config/config.go

@@ -155,6 +155,7 @@ type FrontendPort struct {
 	ArchiverPrefix             string     `ocisConfig:"archiver_prefix"`
 	DatagatewayPrefix          string     `ocisConfig:"data_gateway_prefix"`
 	Favorites                  bool       `ocisConfig:"favorites"`
+	ProjectSpaces              bool       `ocisConfig:"project_spaces"`
 	OCDavInsecure              bool       `ocisConfig:"ocdav_insecure"`
 	OCDavPrefix                string     `ocisConfig:"ocdav_prefix"`
 	OCSPrefix                  string     `ocisConfig:"ocs_prefix"`
@@ -815,6 +816,10 @@ func structMappings(cfg *Config) []shared.EnvBinding {
 			EnvVars:     []string{"STORAGE_FRONTEND_FAVORITES"},
 			Destination: &cfg.Reva.Frontend.Favorites,
 		},
+		{
+			EnvVars:     []string{"STORAGE_FRONTEND_PROJECT_SPACES"},
+			Destination: &cfg.Reva.Frontend.ProjectSpaces,
+		},
 		{
 			EnvVars:     []string{"STORAGE_FRONTEND_OCDAV_PREFIX"},
 			Destination: &cfg.Reva.Frontend.OCDavPrefix,

storage/pkg/config/defaultconfig.go

@@ -239,6 +239,7 @@ func DefaultConfig() *Config {
 				ArchiverPrefix:             "archiver",
 				DatagatewayPrefix:          "data",
 				Favorites:                  false,
+				ProjectSpaces:              true,
 				OCDavInsecure:              false, // true?
 				OCDavPrefix:                "",
 				OCSPrefix:                  "ocs",