1 files changed, 142 insertions, 0 deletions
diff --git a/src/lua/filesystem/luaopen_filesystem.cpp b/src/lua/filesystem/luaopen_filesystem.cpp
new file mode 100644
index 0000000..db0216b
--- /dev/null
+++ b/src/lua/filesystem/luaopen_filesystem.cpp
@@ -0,0 +1,142 @@
+#include "lua/luax.h"
+#include "libjin/jin.h"
+#include <string>
+
+using namespace jin::fs;
+
+namespace jin
+{
+namespace lua
+{
+
+    static struct
+    {
+        Filesystem* fs; 
+    } context;
+
+    static int l_init(lua_State* L)
+    {
+        context.fs = Filesystem::get();
+        return 0; 
+    }
+
+    /**
+    * set current game root, like 
+    * C:/jin/games/tank/ 
+    */
+    static int l_mount(lua_State* L)
+    {
+        const char* path = luax_checkstring(L, 1);
+        context.fs->mount(path);
+        return 0;
+    }
+
+    /**
+    * 
+    */
+    static int l_isDir(lua_State *L)
+    {
+        const char* path = luax_checkstring(L, 1);
+        int r = context.fs->isDir(path);
+        luax_pushboolean(L, r); 
+        return 1; 
+    }
+
+    /**
+    * 
+    */
+    static int l_exist(lua_State * L)
+    {
+        const char* path = luax_checkstring(L, 1);
+        int r = context.fs->exists(path);
+        luax_pushboolean(L, r);
+        return 1;
+    }
+
+    static int l_isdir(lua_State* L)
+    {
+        const char* path = luax_checkstring(L, 1);
+        int r = context.fs->isDir(path);
+        luax_pushboolean(L, r);
+        return 1;
+    }
+
+    // load but dont run it 
+    static int loadf(lua_State* L)
+    {
+        const char* filename = lua_tostring(L, -1);
+        Buffer bf; 
+        context.fs->read(filename, &bf);
+        luax_loadbuffer(L, (const char*)bf.data, bf.size, filename);
+        return 1; 
+    }
+
+    static int loader(lua_State* L)
+    {
+        const char * filename = lua_tostring(L, -1);
+
+        std::string tmp(filename);
+        tmp += ".lua";
+
+        int size = tmp.size();
+
+        for (int i = 0; i<size - 4; ++i)
+        {
+            if (tmp[i] == '.')
+            {
+                tmp[i] = '/';
+            }
+        }
+
+        // Check whether file exists.
+        if (context.fs->exists(tmp.c_str()))
+        {
+            lua_pop(L, 1);
+            lua_pushstring(L, tmp.c_str());
+            // Ok, load it.
+            return loadf(L);
+        }
+
+        tmp = filename;
+        size = tmp.size();
+        for (int i = 0; i<size; ++i)
+        {
+            if (tmp[i] == '.')
+            {
+                tmp[i] = '/';
+            }
+        }
+
+        if (context.fs->isDir(tmp.c_str()))
+        {
+            tmp += "/init.lua";
+            if (context.fs->exists(tmp.c_str()))
+            {
+                lua_pop(L, 1);
+                lua_pushstring(L, tmp.c_str());
+                // Ok, load it.
+                return loadf(L);
+            }
+        }
+
+        lua_pushfstring(L, "\n\tno file \"%s\" in jin game directories.\n", (tmp + ".lua").c_str());
+        return 1;
+    }
+
+    static const luaL_Reg f[] = {
+        {"init",  l_init},
+        {"mount", l_mount},
+        {"isdir", l_isDir},
+        {"exist", l_exist},
+        {0, 0}
+    };
+
+    int luaopen_filesystem(lua_State* L)
+    {
+        luax_newlib(L, f);
+        luax_register_searcher(L, loader, 1); 
+        return 0;
+    }
+
+}
+}
+\ No newline at end of file