`followSymbolicLinks: false` excludes symlinks

[benmccann]

netlify/build has some code similar to:

  const pathGroups = await glob('**', {
    absolute: true,
    dot: true,
    ignore: excludePatterns,
    onlyFiles: false,
    markDirectories: true,
    followSymbolicLinks: false,
  })
  const paths = pathGroups.filter((path) => !path.endsWith('/'))

This behaves differently in tinyglobby than in fast-glob

See here for a reproduction: https://github.com/benmccann/tinyglobby-symlinks

Blocks netlify/build#6354

[benmccann]

The problem is this line:

tinyglobby/src/index.ts

Line 266 in 38f4f5b

fdirOptions.excludeSymlinks = true;

Maybe we need a new followSymlinks option in fdir?

[benmccann]

Maybe we could implement this using an exclude function which checks if the parent dir is a sym link? https://github.com/thecodrr/fdir/blob/master/documentation.md#excludefunction

It'd be a semi-expensive way to implement this, but users don't set followSymbolicLinks: false often (as evidenced by the fact that no one noticed it was broken until now). I've never seen it used in any project outside of the pending PR for netlify/build