Fix OS X resource fork handling (Reported-by: Richard O'Keefe)

[ghost]

If you happen to fetch a zip archive of the git repo and try to build
from that, you may, for example, ask erlc to build src/._rebar.erl.
._* are OS X resource forks and not real .erl files. This may also
happen with network filesystems on OS X. To fix that, limit the
files compiled by rebar to include only those which start with
a letter or a digit.

[ghost]

inttest/depplugins fails. will look into it.

[ferd]

Have you considered looking at the fix José Valim recommended on the list? I'm not sure if it worked pre-R15B? http://erlang.org/pipermail/erlang-questions/2014-June/079608.html

It sounds like a decent way to get it working safely. Not sure about speed though.

[ghost]

@ferd wrote:

Have you considered looking at the fix Jose Valim recommended on the list? I'm not sure if it worked pre-R15B? http://erlang.org/pipermail/erlang-questions/2014-June/079608.html

It sounds like a decent way to get it working safely. Not sure about speed though.

That would only work in bootstrap as rebar_utils:find_files uses filelib:fold_files. Also, the alternative wildcard/2 approach is undocumented as far as I can see, and we can only rely on it if the OTP team accepts a patch to document it in a future release.