* EricR <butzwon...@gmail.com> [181004 13:33]:
> Hi! I'm new to Go and need to do something with each file in directories.
> Symlinks need to be followed. I've tried filepath and a few popular
> libraries and they either crash with segfaults on my system, do not follow
> symlinks or do not prevent infinite loops.
>
> Is there a directory walking library that follow symlinks but detects
> cylces as you would expect? It needs to work on all platforms.
I would use filepath.Walk with a WalkFunc that checked FileInfo.Mode()
for a symlink, used os.Stat() to determine if the symlink points to a
directory, and if it does, calls Walk with the symlink target.
Preventing loops is as simple as making the WalkFunc a closure with a
map[string]struct{} that keeps track of every directory already walked.
If the current path is a directory and is in your map, exit, otherwise
(for directories) add the directory to the map and continue.
It is not a lot of work on top of Walk to get what you want. If you
need more help, let me know.
...Marvin
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