tree 6a2770c0772298c1815ebf88d0839b1981831f60
parent 77c0edda5c29fa4d464d28bb5efd7e905c41de79
author Yiding Jia <yiding@fb.com> 1382577592 -0700
committer Michael Bolin <mbolin@fb.com> 1383166199 -0700

Deal with recursive symlinks in directory traversal in buck.py.

Summary:
Recently this file was changed to do a recursive traversal while following
symlinks, without dealing with recursive symlinks.

This diff deals with recursive symlinks by recording all visited paths, and
skipping the ones that have already been visited.