cleaning up

include/ModuleLoader.hpp

@@ -9,6 +9,7 @@
 
 class ModuleLoader {
 public:
+    // initializer
     explicit ModuleLoader(std::string module_path = "/usr/lib/dpm/modules/");
     DPMError list_available_modules(std::vector<std::string>& modules) const;
     DPMError get_module_path(std::string& path) const;

include/dpm_interface.hpp

@@ -24,10 +24,13 @@ int main_list_modules(const ModuleLoader& loader);
 
 // data structure for supplied arguments
 struct CommandArgs {
-    std::string module_path = "/usr/lib/dpm/modules/";
+    std::string module_path;
     std::string module_name;
     std::string command;  // All arguments combined into a single command string
 };
 
 // parser for populating data structure for supplied arguments
-CommandArgs parse_args(int argc, char* argv[]);
+CommandArgs parse_args(int argc, char* argv[]);
+
+// pairs DPMErrors to error messages, prints those error messages, and returns
+int print_error(DPMError error, const std::string& module_name, const std::string& module_path);

include/error.hpp

@@ -1,5 +1,6 @@
 #pragma once
 
+// global errors for the core DPM routing/execution component
 enum class DPMError {
     SUCCESS,
     PATH_NOT_FOUND,