z_module_indexer: add recursion scan into scan_subdir/4

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One my projects has 100+ of templates, so they are organized into 2- or 3-level 
directory structure:

/templates/base.tpl
/templates/one_dir/one_template.tpl
/templates/anothen_dir/sub_dir/_other.tpl

The problem is that mod_translation generates template only for 
/templates/*.tpl, so dozens of templates in subdirs is skipped. This caused by 
too-simple wildcard in z_module_indexer:scan_subdir/4:

limitation is near line 295: 
Files = filelib:wildcard(Pattern),
where Pattern is string like "/.../templates/*.tpl" for this case.

One fat crunch (attached) is to use filelib:fold_files/5 with recursion=true:
filelib:fold_files(".../templates", ".*\.tpl", true, fun(F,Acc) -> [F | Acc] 
end, []).

Original issue reported on code.google.com by hellla...@gmail.com on 16 Mar 2011 at 1:45

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Original comment by hellla...@gmail.com on 16 Mar 2011 at 3:38

Attachments:

• z_m_i_recursion.patch

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This issue was closed by revision 059696af069b.

Original comment by scherpenisse on 24 Mar 2011 at 9:37

• Changed state: Fixed