java - How to protect Files.walk from symbolic links recursion? -

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how protect files.walk symbolic links recursion? using java or shell.

okay, follow links.

stream<path> stream = walk(startpath, maxdepth, filevisitoption.follow_links);

however check every directory whether symbolic link:

files.issymboliclink(path) && fles.isdirectory(path)

use

path realpath = path.torealpath();

then keeping list of directories on in, ancestors, 1 prevent recursion. doing every directory check in ancestors, when symbolic link somewhere in list/current path.

a > b > start:c > d > e > symbolic:f=a > b > c

(this still not prevent visiting directory twice, same or subdirectory linked without recursion.)


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