exa/xtests/proc_1_root
Ben S 74358c188a Properly handle errors when following a symlink
Fixes #123. The code assumes that every File that has its link_target() method called would first have been checked to make sure it’s actually a link first. Unfortunately it also assumed that the only thing that can go wrong while following a link is if the file wasn’t a link, meaning it crashes when given a link it doesn’t have permission to follow.

This makes the file_target() method able to return either a file or path for displaying, as before, but also an IO error for when things go wrong.
2016-10-29 20:27:23 +01:00

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lrwxrwxrwx 0 root 29 Oct 17:23 /proc/1/root
└── <Permission denied (os error 13)>