Get-ChildItem will recurse indefinititely for recursive symlinks #1875
Description
Steps to reproduce
gci -r /sys
Expected behavior
gci reaches its terminus, and then ceases
Actual behavior
Because of these recursive symlinks,
PS /> ls -la /sys/bus/cpu/devices/cpu0/
lrwxrwxrwx. 1 root root 0 Aug 18 16:12 node0 -> ../../node/node0
PS /> ls -la /sys/bus/cpu/devices/cpu0/node0/
lrwxrwxrwx. 1 root root 0 Aug 18 16:12 cpu0 -> ../../cpu/cpu0
gci eventually runs into something like this:
Directory: /sys/bus/cpu/devices/cpu0/node0/cpu0/node0/cpu0/node0/cpu0/node0/cpu0/node0/cpu0/node0/cpu0/node0/cpu0/nod
e0/cpu0/node0/cpu0/node0/cpu0/node0/cpu0/node0/cpu0/node0/cpu0/node0/cpu0
Mode LastWriteTime Length Name
---- ------------- ------ ----
d----- 08/18/2016 16:13 cache
It has shown no sign of stopping.
Linux's equivalent ls -lR /sys will cease, as it will not descend into already visited nodes.
Environment data
Name Value
---- -----
PSVersion 6.0.0-alpha
PSEdition Core
PSCompatibleVersions {1.0, 2.0, 3.0, 4.0...}
BuildVersion 3.0.0.0
GitCommitId v6.0.0-alpha.9
CLRVersion
WSManStackVersion 3.0
PSRemotingProtocolVersion 2.3
SerializationVersion 1.1.0.1