lovr.filesystem.append;

src/filesystem/filesystem.c

@@ -21,6 +21,23 @@ void lovrFilesystemDestroy() {
   PHYSFS_deinit();
 }
 
+int lovrFilesystemAppend(const char* path, const char* content, int size) {
+  if (!PHYSFS_isInit() || !state.identity) {
+    error("Can not write files until lovr.filesystem.setIdentity is called");
+  }
+
+  // Open file
+  PHYSFS_file* handle = PHYSFS_openAppend(path);
+  if (!handle) {
+    return 0;
+  }
+
+  // Perform write
+  int bytesWritten = PHYSFS_write(handle, content, 1, size);
+  PHYSFS_close(handle);
+  return bytesWritten;
+}
+
 int lovrFilesystemExists(const char* path) {
   return PHYSFS_exists(path);
 }

src/filesystem/filesystem.h

@@ -14,6 +14,7 @@ typedef struct {
 
 void lovrFilesystemInit(const char* arg0);
 void lovrFilesystemDestroy();
+int lovrFilesystemAppend(const char* path, const char* content, int size);
 int lovrFilesystemExists(const char* path);
 int lovrFilesystemGetExecutablePath(char* dest, unsigned int size);
 const char* lovrFilesystemGetIdentity();

src/lovr/filesystem.c

@@ -49,6 +49,7 @@ static int filesystemLoader(lua_State* L) {
 
 const luaL_Reg lovrFilesystem[] = {
   { "init", l_lovrFilesystemInitialize },
+  { "append", l_lovrFilesystemAppend },
   { "exists", l_lovrFilesystemExists },
   { "getExecutablePath", l_lovrFilesystemGetExecutablePath },
   { "getIdentity", l_lovrFilesystemGetIdentity },
@@ -87,6 +88,14 @@ int l_lovrFilesystemInitialize(lua_State* L) {
   return 0;
 }
 
+int l_lovrFilesystemAppend(lua_State* L) {
+  size_t size;
+  const char* path = luaL_checkstring(L, 1);
+  const char* content = luaL_checklstring(L, 2, &size);
+  lua_pushnumber(L, lovrFilesystemAppend(path, content, size));
+  return 1;
+}
+
 int l_lovrFilesystemExists(lua_State* L) {
   const char* path = luaL_checkstring(L, 1);
   lua_pushboolean(L, lovrFilesystemExists(path));

src/lovr/filesystem.h

@@ -5,6 +5,7 @@
 extern const luaL_Reg lovrFilesystem[];
 int l_lovrFilesystemInit(lua_State* L);
 int l_lovrFilesystemInitialize(lua_State* L);
+int l_lovrFilesystemAppend(lua_State* L);
 int l_lovrFilesystemExists(lua_State* L);
 int l_lovrFilesystemGetExecutablePath(lua_State* L);
 int l_lovrFilesystemGetIdentity(lua_State* L);