Re: Is there a lua module just like GNU's find?

[Dimiter 'malkia' Stanev <malkia@...>]

Hey Joshua,

There is a way to read the directory in just 2-3 kernel calls. (A little 
more if the directory is bigger, and provided buffer is not enough). I 
can't tell whether it's faster, but it's out there.

fileinfo.c:
https://gist.github.com/1487388

FYI: It's doing more that it's supposed to do, for example two times 
calling

if(!GetFileInformationByHandleEx(h, (FILE_INFO_BY_HANDLE_CLASS)i, 
buffer1, sizeof(buffer1))
|| !GetFileInformationByHandleEx(h, (FILE_INFO_BY_HANDLE_CLASS)i, 
buffer2, sizeof(buffer2)))
    continue;

but this was just to explore how the functions were behaving, and 
whether they were filling the buffer to the end.

Only one call is needed there.

Thanks,
Dimiter 'malkia' Stanev.

On 12/16/2011 9:20 AM, Joshua Jensen wrote:
> ----- Original Message -----
> From: Joshua Jensen
> Date: 12/16/2011 3:00 AM
> > ----- Original Message -----
> > From: Xavier Wang
> > Date: 12/16/2011 2:46 AM
> > > I have try to find a lua module that acts like GNU find, it can
> > > enumerate files in a directory, and makes some filter on it:
> > >
> > > find "." :name ".svn" :prune()
> > > :OR():print()
> > >
> > > or something like it.
> > The filefind module [1] may do what you want [2] [3]:
> >
> > require 'filefind'
> >
> > -- Just files, excluding .svn directories.
> > for entry in filefind.glob('**@-.svn/') do
> > print(entry.filename)
> > end
> >
> > [1]
> > https://github.com/jjensen/luaplus51-all/tree/master/Src/Modules/filefind
> Also, just to add this, the filefind module is very high performance,
> especially on Windows. LuaFileSystem does not collect file information
> from the FindFirstFile/FindNextFile iteration calls. It asks separately
> for the file stats. It has been my experience that this is VERY costly
> on Windows.
>
> -Josh