[erlang-questions] filelib:fold_files doesnt work for symlink anymore (on Erlang/OTP 17)?

José Valim <>
Wed Jul 9 12:39:24 CEST 2014


It is a regression on Erlang 17.1.

It has been reported here:
http://erlang.org/pipermail/erlang-bugs/2014-June/004465.html

And a pull request to fix it is here: https://github.com/erlang/otp/pull/417



*José Valim*
www.plataformatec.com.br
Skype: jv.ptec
Founder and Lead Developer


On Wed, Jul 9, 2014 at 10:49 AM, Zhibo Wei <> wrote:

> Here is how my src dict look like:
> src/
> ├── 1.erl
> ├── 2.erl
> ├── 3.src
> └── symlink -> ../../xxx/yyy/
>
> and ' ../../xxx/yyy/' contains several '.proto' files
>
> Here is what I did in erl console:
> 1> filelib:fold_files("src", ".*\\.proto$", true, fun(F, Acc) -> [F | Acc]
> end, []).
> []
> 2> filelib:fold_files("src", ".*\\.erl$", true, fun(F, Acc) -> [F | Acc]
> end, []).
> ["/home/xxx/src/1.erl",
>  "/home/xxx/src/2.erl"]
> 3> filelib:fold_files("src/symlink", ".*\\.proto$", true, fun(F, Acc) ->
> [F | Acc] end, []).
> ["/home/xxx/src/symlink/1.proto",
>  "/home/xxx/src/symlink/2.proto"]
>
> But as I remembered, filelib:fold_files works fine before I upgrade erlang.
> My erlang version is 'Erlang/OTP 17 [erts-6.1] [source] [64-bit]' and it's
> running on Ubuntu 14.04
>
> Is this a known issue of Erlang? Is there any work around to make this
> working other than downgrade erlang? Please let me know, thanks a lot!
>
> Thanks,
> Zhibo
>
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> 
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>
>
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