Broken while we implement version control.

src/service_runner.hpp

@@ -13,6 +13,7 @@
 #include "services.hpp"
 #include "utils/utils.hpp"
 #include "utils/assert.hpp"
+#include "utils/hash.hpp"
 
 namespace dropshell {
 
@@ -58,6 +59,9 @@ class service_runner {
         static std::map<std::string, ServiceStatus> get_all_services_status(std::string server_name);
         static std::string HealthStatus2String(HealthStatus status);
 
+        // ensure the service related dropshell files (template and config) are up to date on the remote server.
+        bool ensure_service_dropshell_files_up_to_date();
+
     private:    
         // install the service over ssh, using the credentials from server.env (via server_env.hpp), by:
         // 1. check if the server_name exists, and the service_name refers to a valid template
@@ -108,6 +112,33 @@ void interactive_ssh(const std::string & server_name, const std::string & comman
 void edit_server(const std::string & server_name);
 void edit_file(const std::string & file_path, const std::string & aftertext);
 
+// check if the service template and config are up to date on the remote server.
+class service_versions {
+    public:
+        service_versions(const std::string & server_name, const std::string & service_name);
+
+        bool remote_up_to_date() { return remote_template_is_up_to_date() && remote_config_is_up_to_date(); }
+
+        bool remote_template_is_up_to_date() { return get_version_remote_service_template() == calculate_version_local_service_template(); }
+        bool remote_config_is_up_to_date() { return get_version_remote_config() == calculate_version_local_config(); }    
+
+        XXH64_hash_t calculate_version_local_service_template();
+        XXH64_hash_t calculate_version_local_config();
+
+        void update_stored_remote_versions();
+        XXH64_hash_t get_version_remote_config();
+        XXH64_hash_t get_version_remote_service_template();
+
+    private:
+        XXH64_hash_t calculate_version_remote_service_template();
+        XXH64_hash_t calculate_version_remote_config();
+
+    private:
+        std::string m_server_name;
+        std::string m_service_name;
+};
+
+
 } // namespace dropshell
 
 #endif // SERVICE_RUNNER_HPP