1 files changed, 53 insertions, 0 deletions
diff --git a/source/utility/asset_unpacker.cpp b/source/utility/asset_unpacker.cpp
new file mode 100644
index 0000000..d4d4f6d
--- /dev/null
+++ b/source/utility/asset_unpacker.cpp
@@ -0,0 +1,53 @@
+#include "StarPackedAssetSource.hpp"
+#include "StarTime.hpp"
+#include "StarJsonExtra.hpp"
+#include "StarFile.hpp"
+
+using namespace Star;
+
+int main(int argc, char** argv) {
+  try {
+    double startTime = Time::monotonicTime();
+
+    if (argc != 3) {
+      cerrf("Usage: %s <assets pak path> <target output directory>\n", argv[0]);
+      cerrf("If the target output directory does not exist it will be created\n");
+      return 1;
+    }
+
+    String inputFile = argv[1];
+    String outputFolderPath = argv[2];
+
+    PackedAssetSource assetsPack(inputFile);
+
+    if (!File::isDirectory(outputFolderPath))
+      File::makeDirectory(outputFolderPath);
+
+    File::changeDirectory(outputFolderPath);
+
+    auto allFiles = assetsPack.assetPaths();
+
+    for (auto file : allFiles) {
+      try {
+        auto fileData = assetsPack.read(file);
+        auto relativePath = "." + file;
+        auto relativeDir = File::dirName(relativePath);
+        File::makeDirectoryRecursive(relativeDir);
+        File::writeFile(fileData, relativePath);
+      } catch (AssetSourceException const& e) {
+        cerrf("Could not open file: %s\n", file);
+        cerrf("Reason: %s\n", outputException(e, false));
+      }
+    }
+
+    auto metadata = assetsPack.metadata();
+    if (!metadata.empty())
+      File::writeFile(Json(move(metadata)).printJson(2), "_metadata");
+
+    coutf("Unpacked assets to %s in %ss\n", outputFolderPath, Time::monotonicTime() - startTime);
+    return 0;
+  } catch (std::exception const& e) {
+    cerrf("Exception caught: %s\n", outputException(e, true));
+    return 1;
+  }
+}