Member deletion is here

Author: serge1

examples/arioso/arioso.cpp

@@ -60,15 +60,15 @@ ario::Result extract_member( const ario::Member& member )
     // For demonstration purposes, we will just print the member name and size
     std::cout << "Extracting member: " << member << ", Size: " << member.size
               << " bytes" << std::endl;
+
     std::filesystem::path output_path =
         std::filesystem::current_path() / member.name;
     std::ofstream output_file( output_path, std::ios::binary );
     if ( !output_file ) {
-        std::cerr << "Failed to create output file: " << output_path
-                  << std::endl;
-        return {};
+        return { " Failed to create output file : " + output_path.string() };
     }
     output_file.write( member.data().c_str(), member.size );
+
     return {}; // Return success
 }
 
@@ -77,23 +77,46 @@ int main( int argc, char** argv )
     auto opts = parse_args( argc, argv );
 
     // Open existing library or create a new one. In the last case, the library will be empty.
-    ario lib;
-    lib.load( opts.archive_name );
+    ario archive;
+    archive.load( opts.archive_name );
 
-    // List all members from the command line extraction list and extract them.
+    // Extract all members from the command line extraction list.
     // The search should be done by member's name. Exact match is expected
     for ( const auto& file_name : opts.extract_files ) {
         const auto& pmember =
-            std::find( lib.members.begin(), lib.members.end(), file_name );
-        if ( pmember != lib.members.end() ) {
-            extract_member( *pmember );
+            std::find( archive.members.begin(), archive.members.end(), file_name );
+        if ( pmember != archive.members.end() ) {
+            auto result = extract_member( *pmember );
+            if ( !result.ok() ) {
+                std::cerr << "Error extracting member '" << file_name
+                          << "': " << result.what() << std::endl;
+            }
         }
         else {
-            std::cout << "Member '" << file_name << "' not found in the library"
+            std::cerr << "Member '" << file_name << "' not found in the library"
                       << std::endl;
             return 1;
         }
     }
 
+    if (opts.delete_files.empty() && opts.add_files.empty()) {
+        // No files to delete or add. Exiting
+        return 0;
+    }
+
+    ario target_archive;
+
+    // Delete members from the command line deletion list.
+    for ( const auto& member : archive.members ) {
+        if ( std::find( opts.delete_files.begin(), opts.delete_files.end(),
+                        member.name ) == opts.delete_files.end() ) {
+            std::optional<std::reference_wrapper<const ario::Member>>
+                added_member = std::nullopt;
+            target_archive.add_member( member, member.data(), added_member );
+        }
+    }
+
+    target_archive.save( opts.archive_name );
+
     return 0;
 }