lua file system mkdir issue

louis

I try to create a folder use lfs in app,but the new folder not exist in system...
my test code

require "lfs"   lfs.mkdir("|D|cache/test") print(result,err)

out:
nil No such file or directory

lfs.c

static int make_dir (lua_State *L) { const char *path = luaL_checkstring (L, 1); int fail; #ifdef _WIN32 fail = _mkdir (gpath_transform(path)); #else fail = mkdir (gpath_transform(path), S_IRUSR | S_IWUSR | S_IXUSR | S_IRGRP | S_IWGRP | S_IXGRP | S_IROTH | S_IXOTH ); #endif if (fail) { lua_pushnil (L); lua_pushfstring (L, "%s", strerror(errno)); return 2; } lua_pushboolean (L, 1); return 1; }

louis

OK,I got it.....

require "lfs"   lfs.mkdir("|D|cache") print(result,err)

This is OK.

techdojo

I haven't used lfs but does the "cache" folder exist first, are you trying to create two folders at once - do you have create each branch of the tree separately?

louis

are you trying to create two folders at once Yes.
do you have create each branch of the tree separately? No.

I found this problem,so I separate directory and mkdir folder hierarchy.

require "lfs" function saveDataToFile(dir,filename,data) local iter, dir_obj = pcall(lfs.dir,dir) if iter==false then local dir_split=str_split(dir,"/") local new_folder=nil for i=1,table.getn(dir_split) do local v=dir_split[i] if new_folder==nil then new_folder=v else new_folder=new_folder.."/"..v end local mkdir_result,mkdir_err=pcall(lfs.mkdir,new_folder) end end local out,err = io.open(dir..filename, "wb") if out then print("SUCC:save data to local file:"..dir..filename) out:write(data) out:close() else print("FAIL:save data to local file error:"..err) end end