symlink usage prevents tilemill from running on windows XP

[springmeyer]

While Windows Vista and 7 support symlinks, XP does not. This quickly halts key TileMill data i/o from working.

Ideally we could support Windows XP, because it is still in use just as much as Windows 7.

The errors TileMill throws can be replicated like:

[yhahn]

lol no symlinks in XP???

We'll need to have a similar tactic in millstone if we want to support XP then.

[springmeyer]

Monkeypatching the index.js "fixes" millstone as well it seems. I'm sure updates are broken but initial copy works.

[springmeyer]

like #1113, closed by not using symlinks in d4743ac. We can re-open new tickets on symlinks if we ever decide to open this pandora's box.

[kkaefer]

While symbolic links don't work on Windows XP, junction points do. Junction points can only point to other directories, but that should be something we can handle.

• http://www.flexhex.com/docs/articles/hard-links.phtml
• http://www.codeproject.com/Articles/15633/Manipulating-NTFS-Junction-Points-in-NET

This will probably need to be implemented in libuv