Symbolic link under windows about luafilesystem

[hishamhm]

No reason other than nobody did it yet. :)

A proper implementation needs the following:

• version checks to make sure that the APIs are available (that is, that all Windows versions that luafilesystem currently supports will continue to build without breaking)
• implementations that make sense with the lfs APIs (for the lfs.link function for example, if Windows supports symbolic links only and not hard links, the function should only create a link when the third argument is true)
• check that the existing tests run and exercise the new code (and add some if necessary)
• following the coding style of the rest of the code (variable names, indentation, etc.)

[moteus]

Just note. Windows support hard link since win2k3

[brisingraerowing]

As a side note, there is a library called LibNTLink that implements link(), symlink(), unlink(), lstat(), and readlink() on Windows. Maybe that library would be of use.

I am currently in the process of editing LFS to make it use LibNTLink for this.

[hishamhm]

@brisingraerowing that's interesting, but according to the link it requires GCC and win32api MinGW packages. LFS also runs with MSVC.

[brisingraerowing]

I'll take a look and see if I can get it to compile with MSVC. Looking at the code it doesn't use any GCC-Specific things, so it shouldn't take too much to get it working.

It does have a few compilation bugs though (missing method parameters mostly), but those are easily fixed.