chore: initial workspace setting proto definition

proto/api/v2/workspace_setting_service.proto

@@ -0,0 +1,59 @@
+syntax = "proto3";
+
+package slash.api.v2;
+
+import "google/api/annotations.proto";
+import "google/api/client.proto";
+
+option go_package = "gen/api/v2";
+
+service WorkspaceSettingService {
+  rpc GetWorkspaceSetting(GetWorkspaceSettingRequest) returns (GetWorkspaceSettingResponse) {
+    option (google.api.http) = {get: "/api/v2/workspace/settings"};
+  }
+  rpc UpdateWorkspaceSetting(UpdateWorkspaceSettingRequest) returns (UpdateWorkspaceSettingResponse) {
+    option (google.api.http) = {
+      post: "/api/v2/workspace/settings"
+      body: "*"
+    };
+  }
+}
+
+message WorkspaceSetting {
+  // Whether to enable other users to sign up.
+  bool enable_signup = 1;
+  // The relative path of the resource directory.
+  string resource_relative_path = 2;
+  // The auto backup setting.
+  AutoBackupWorkspaceSetting auto_backup = 3;
+}
+
+message AutoBackupWorkspaceSetting {
+  // Whether auto backup is enabled.
+  bool enabled = 1;
+  // The cron expression for auto backup.
+  // For example, "0 0 0 * * *" means backup at 00:00:00 every day.
+  // See https://en.wikipedia.org/wiki/Cron for more details.
+  string cron_expression = 2;
+  // The maximum number of backups to keep.
+  int32 max_keep = 3;
+}
+
+message GetWorkspaceSettingRequest {}
+
+message GetWorkspaceSettingResponse {
+  // The user setting.
+  WorkspaceSetting setting = 1;
+}
+
+message UpdateWorkspaceSettingRequest {
+  // The user setting.
+  WorkspaceSetting setting = 1;
+  // The update mask.
+  repeated string update_mask = 2;
+}
+
+message UpdateWorkspaceSettingResponse {
+  // The user setting.
+  WorkspaceSetting setting = 1;
+}