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,

src/dpm.cpp

@@ -11,35 +11,6 @@
  *       3. Provide a module-agnostic unified interface for modules.
  */
 
-// prints error message and returns error code
-int print_error(DPMError error, const std::string& module_name, const std::string& module_path) {
-    switch (error) {
-        case DPMError::SUCCESS:
-            return 0;
-        case DPMError::PATH_NOT_FOUND:
-            std::cerr << "Module path not found: " << module_path << std::endl;
-            return 1;
-        case DPMError::PATH_NOT_DIRECTORY:
-            std::cerr << "Module path is not a directory: " << module_path << std::endl;
-            return 1;
-        case DPMError::PERMISSION_DENIED:
-            std::cerr << "Permission denied accessing module: " << module_name << std::endl;
-            return 1;
-        case DPMError::MODULE_NOT_FOUND:
-            std::cerr << "Module not found: " << module_name << std::endl;
-            return 1;
-        case DPMError::MODULE_LOAD_FAILED:
-            std::cerr << "Failed to load module: " << module_name << std::endl;
-            return 1;
-        case DPMError::INVALID_MODULE:
-            std::cerr << "Invalid module format: " << module_name << std::endl;
-            return 1;
-        default:
-            std::cerr << "Unknown error executing module: " << module_name << std::endl;
-            return 1;
-    }
-}
-
 // the default behaviour if dpm is executed without being told to do anything
 int default_behavior(const ModuleLoader& loader)
 {
@@ -55,8 +26,6 @@ int main( int argc, char* argv[] )
     auto args = parse_args( argc, argv );
 
     // create a module loader object at the supplied or default path
-    // TODO: the default is set in the header instead of the
-    //   implementation, fix that
     ModuleLoader loader( args.module_path );
 
     // check the module path for the loader object

src/dpm_interface.cpp

@@ -126,10 +126,10 @@ int main_list_modules(const ModuleLoader& loader)
     return 0;
 }
 
-// parser for populating data structure for supplied arguments
 CommandArgs parse_args(int argc, char* argv[])
 {
     CommandArgs args;
+    args.module_path = "/usr/lib/dpm/modules/";  // Set to same default as ModuleLoader
 
     static struct option long_options[] = {
         {"module-path", required_argument, 0, 'm'},
@@ -174,4 +174,32 @@ CommandArgs parse_args(int argc, char* argv[])
     }
 
     return args;
+}
+
+int print_error(DPMError error, const std::string& module_name, const std::string& module_path) {
+    switch (error) {
+        case DPMError::SUCCESS:
+            return 0;
+        case DPMError::PATH_NOT_FOUND:
+            std::cerr << "Module path not found: " << module_path << std::endl;
+        return 1;
+        case DPMError::PATH_NOT_DIRECTORY:
+            std::cerr << "Module path is not a directory: " << module_path << std::endl;
+        return 1;
+        case DPMError::PERMISSION_DENIED:
+            std::cerr << "Permission denied accessing module: " << module_name << std::endl;
+        return 1;
+        case DPMError::MODULE_NOT_FOUND:
+            std::cerr << "Module not found: " << module_name << std::endl;
+        return 1;
+        case DPMError::MODULE_LOAD_FAILED:
+            std::cerr << "Failed to load module: " << module_name << std::endl;
+        return 1;
+        case DPMError::INVALID_MODULE:
+            std::cerr << "Invalid module format: " << module_name << std::endl;
+        return 1;
+        default:
+            std::cerr << "Unknown error executing module: " << module_name << std::endl;
+        return 1;
+    }
 }