Stat returns error when path is a symlink that point to a non-existent file

[JinnyYi]

filepath.EvalSymlinks(path) will return lstat xxxxx: no such file or directory if path is a symlink and points to a non-existent file or directory.

Maybe we can use os.Readlink(name) instead as it can get the destination of the named symbolic link even if the target is not exist?

[Xuanwo]

LGTM, but Readlink only read once, we need to handle multiple links.

[JinnyYi]

LGTM, but Readlink only read once, we need to handle multiple links.

How about use EvalSymlinks first? If we get the target not exist related error from EvalSymlinks, then we use Readlink to try to get the target.

[Xuanwo]

EvalSymlinks calls Readlink internally, this will add extra cost for it.

Maybe we can implement ourself EvalSymlinks: https://golang.org/src/path/filepath/symlink.go

src/path/filepath/symlink.go - The Go Programming Language

Go is an open source programming language that makes it easy to build simple, reliable, and efficient software.

[JinnyYi]

Fixed in #64