fix: missing pack.has_indices if content is not loaded

src/content/ContentPack.cpp

@@ -9,7 +9,10 @@
 #include "data/dv.hpp"
 #include "io/engine_paths.hpp"
 #include "io/io.hpp"
+#include "coders/commons.hpp"
+#include "debug/Logger.hpp"
 
+static debug::Logger logger("content-pack");
 
 namespace fs = std::filesystem;
 
@@ -47,6 +50,24 @@ bool ContentPack::is_pack(const io::path& folder) {
     return io::is_regular_file(folder / PACKAGE_FILENAME);
 }
 
+std::optional<ContentPackStats> ContentPack::loadStats() const {
+    auto contentFile = getContentFile();
+    if (!io::exists(contentFile)) {
+        return std::nullopt;
+    }
+    dv::value object;
+    try {
+        object = io::read_object(contentFile);
+    } catch (const parsing_error& err) {
+        logger.error() << err.errorLog();
+    }
+    ContentPackStats stats {};
+    stats.totalBlocks = object.has("blocks") ? object["blocks"].size() : 0;
+    stats.totalItems = object.has("items") ? object["items"].size() : 0;
+    stats.totalEntities = object.has("entities") ? object["entities"].size() : 0;
+    return stats;
+}
+
 static void checkContentPackId(const std::string& id, const io::path& folder) {
     if (id.length() < 2 || id.length() > 24)
         throw contentpack_error(

src/content/ContentPack.hpp

@@ -3,6 +3,7 @@
 #include <stdexcept>
 #include <string>
 #include <vector>
+#include <optional>
 
 #include "typedefs.hpp"
 #include "content_fwd.hpp"
@@ -36,6 +37,16 @@ struct DependencyPack {
     std::string id;
 };
 
+struct ContentPackStats {
+    size_t totalBlocks;
+    size_t totalItems;
+    size_t totalEntities;
+
+    inline bool hasSavingContent() const {
+        return totalBlocks + totalItems + totalEntities > 0;
+    }
+};
+
 struct ContentPack {
     std::string id = "none";
     std::string title = "untitled";
@@ -48,6 +59,8 @@ struct ContentPack {
 
     io::path getContentFile() const;
 
+    std::optional<ContentPackStats> loadStats() const;
+
     static inline const std::string PACKAGE_FILENAME = "package.json";
     static inline const std::string CONTENT_FILENAME = "content.json";
     static inline const io::path BLOCKS_FOLDER = "blocks";
@@ -87,16 +100,6 @@ struct ContentPack {
     }
 };
 
-struct ContentPackStats {
-    size_t totalBlocks;
-    size_t totalItems;
-    size_t totalEntities;
-
-    inline bool hasSavingContent() const {
-        return totalBlocks + totalItems + totalEntities > 0;
-    }
-};
-
 struct WorldFuncsSet {
     bool onblockplaced;
     bool onblockreplaced;

src/logic/scripting/lua/libs/libpack.cpp

@@ -123,8 +123,13 @@ static int l_pack_get_info(
     auto runtime = content ? content->getPackRuntime(pack.id) : nullptr;
     if (runtime) {
         lua::pushboolean(L, runtime->getStats().hasSavingContent());
-        lua::setfield(L, "has_indices");
+    } else {
+        auto stats = pack.loadStats();
+        lua::pushboolean(
+            L, stats.has_value() ? stats->hasSavingContent() : false
+        );
     }
+    lua::setfield(L, "has_indices");
     return 1;
 }