From 62be274af7472c53061afbd0c43a42d5f9b1044b Mon Sep 17 00:00:00 2001
From: Ben <bspam@live.de>
Date: Tue, 17 Feb 2026 17:12:10 +0100
Subject: [PATCH] add argument to allow uncompressed zip creation

Adds a --store-only CLI flag that creates the .nrm zip archive
without compression (store only). This is useful when accessing files inside the zip via DMA (example Audio API).

On Windows, this sets Compress-Archive's CompressionLevel to
NoCompression. On Linux, this passes -0 to zip instead of -9.
---
 RecompModTool/main.cpp | 36 ++++++++++++++++++++++++++----------
 1 file changed, 26 insertions(+), 10 deletions(-)

diff --git a/RecompModTool/main.cpp b/RecompModTool/main.cpp
index 0768f16..c5cdacb 100644
--- a/RecompModTool/main.cpp
+++ b/RecompModTool/main.cpp
@@ -1007,14 +1007,15 @@ N64Recomp::Context build_mod_context(const N64Recomp::Context& input_context, bo
     return ret;
 }
 
-bool create_mod_zip(const std::filesystem::path& output_dir, const ModConfig& config) {
+bool create_mod_zip(const std::filesystem::path& output_dir, const ModConfig& config, bool store_only) {
     std::filesystem::path output_path = output_dir / (config.inputs.mod_filename + ".nrm");
 
 #ifdef _WIN32
     std::filesystem::path temp_zip_path = output_path;
     temp_zip_path.replace_extension(".zip");
-    std::string command_string = fmt::format("powershell -command Compress-Archive -Force -CompressionLevel Optimal -DestinationPath '{}' -Path '{}','{}','{}'",
-        temp_zip_path.string(), (output_dir / symbol_filename).string(), (output_dir / binary_filename).string(), (output_dir / manifest_filename).string());
+    std::string compression_level = store_only ? "NoCompression" : "Optimal";
+    std::string command_string = fmt::format("powershell -command Compress-Archive -Force -CompressionLevel {} -DestinationPath '{}' -Path '{}','{}','{}'",
+        compression_level, temp_zip_path.string(), (output_dir / symbol_filename).string(), (output_dir / binary_filename).string(), (output_dir / manifest_filename).string());
 
     for (const auto& cur_file : config.inputs.additional_files) {
         command_string += fmt::format(",'{}'", cur_file.string());
@@ -1069,7 +1070,7 @@ bool create_mod_zip(const std::filesystem::path& output_dir, const ModConfig& co
 
     add_arg("zip"); // The program name (argv[0]).
     add_arg("-q"); // Quiet mode.
-    add_arg("-9"); // Maximum compression level.
+    add_arg(store_only ? "-0" : "-9"); // Store only or maximum compression level.
     add_arg("-MM"); // Error if any files aren't found.
     add_arg("-j"); // Junk the paths (store just as the provided filename).
     add_arg("-T"); // Test zip integrity.
@@ -1126,13 +1127,28 @@ bool create_mod_zip(const std::filesystem::path& output_dir, const ModConfig& co
 }
 
 int main(int argc, const char** argv) {
-    if (argc != 3) {
-        fmt::print("Usage: {} [mod toml] [output folder]\n", argv[0]);
+    bool store_only = false;
+    int positional_start = 1;
+
+    // Parse optional flags.
+    for (int i = 1; i < argc; i++) {
+        std::string_view arg{argv[i]};
+        if (arg == "--store-only") {
+            store_only = true;
+            positional_start = i + 1;
+        }
+        else {
+            break;
+        }
+    }
+
+    if (argc - positional_start != 2) {
+        fmt::print("Usage: {} [--store-only] [mod toml] [output folder]\n", argv[0]);
         return EXIT_SUCCESS;
     }
 
     bool config_good;
-    std::filesystem::path output_dir{ argv[2] };
+    std::filesystem::path output_dir{ argv[positional_start + 1] };
 
     if (!std::filesystem::exists(output_dir)) {
         fmt::print(stderr, "Specified output folder does not exist!\n");
@@ -1144,10 +1160,10 @@ int main(int argc, const char** argv) {
         return EXIT_FAILURE;
     }
 
-    ModConfig config = parse_mod_config(argv[1], config_good);
+    ModConfig config = parse_mod_config(argv[positional_start], config_good);
 
     if (!config_good) {
-        fmt::print(stderr, "Failed to read mod config file: {}\n", argv[1]);
+        fmt::print(stderr, "Failed to read mod config file: {}\n", argv[positional_start]);
         return EXIT_FAILURE;
     }
 
@@ -1239,7 +1255,7 @@ int main(int argc, const char** argv) {
     write_manifest(output_manifest_path, config.manifest);
 
     // Create the zip.
-    if (!create_mod_zip(output_dir, config)) {
+    if (!create_mod_zip(output_dir, config, store_only)) {
         fmt::print(stderr, "Failed to create mod file.\n");
         return EXIT_FAILURE;
     }