From: Urabe Shyouhei <shyouhei@...>
Date: 2012-08-27T12:17:01+09:00
Subject: [ruby-core:47322] Re: [ruby-cvs:43987] luislavena:r36811 (trunk): Improve require/File.expand_path performance on Windows

Hello Luis,

On 08/24/2012 12:44 PM, luislavena@ruby-lang.org wrote:
> luislavena	2012-08-24 12:44:56 +0900 (Fri, 24 Aug 2012)
> 
>   New Revision: 36811
> 
>   http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=36811
> 
>   Log:
>     Improve require/File.expand_path performance on Windows
>     
>     * configure.in (mingw): add shlwapi to the list of dependency
>       libs for Windows.
>     * win32/Makefile.sub (EXTSOLIBS): ditto.
>     
>     * internal.h: declare internal functions rb_w32_init_file,
>       rb_file_expand_path_internal and rb_file_expand_path_fast.
>     
>     * file.c (Init_File): invoke Windows initialization rb_w32_init_file
>     
>     * win32/file.c (rb_file_load_path_internal): new function.
>       Windows-specific implementation that replaces file_expand_path.
>       [Bug #6836][ruby-core:46996]
>     
>     * win32/file.c (rb_w32_init_file): new function. Initialize codepage
>       cache for faster conversion encodings lookup.
>     
>     * file.c (file_expand_path): rename to rb_file_expand_path_internal.
>       Conditionally exclude from Windows.
>     
>     * file.c (rb_file_expand_path_fast): new function. delegates to
>       rb_file_expand_path_internal without performing a hit to the
>       filesystem.
>     
>     * file.c (file_expand_path_1): use rb_file_expand_path_internal without
>       path expansion (used by require).
>     * file.c (rb_find_file_ext_safe): ditto.
>     * file.c (rb_find_file_safe): ditto.
>     
>     * load.c (rb_get_expanded_load_path): use rb_file_expand_path_fast.
>     * load.c (rb_feature_provided): ditto.
>     
>     * file.c (rb_file_expand_path): use rb_file_expand_path_internal with
>       path expansion.
>     * file.c (rb_file_absolute_path): ditto.
>     
>     * test/ruby/test_file_exhaustive.rb: new tests to exercise
>       rb_file_expand_path_internal implementation and compliance with
>       existing behaviors.
> 
>   Added files:
>     trunk/win32/.time
>   Modified files:
>     trunk/ChangeLog
>     trunk/configure.in
>     trunk/file.c
>     trunk/internal.h
>     trunk/load.c
>     trunk/test/ruby/test_file_exhaustive.rb
>     trunk/win32/Makefile.sub
>     trunk/win32/file.c

Thank you, but this one increased failures on my machine (Linux box, but $HOME is unset).

 55) Error:
test_expand_path_returns_tainted_strings_or_not(TestFileExhaustive):
ArgumentError: couldn't find HOME environment -- expanding `~'
    /src/test/ruby/test_file_exhaustive.rb:598:in `expand_path'
    /src/test/ruby/test_file_exhaustive.rb:598:in `test_expand_path_returns_tainted_strings_or_not'

 56) Error:
test_expand_path_encoding_filesystem(TestFileExhaustive):
ArgumentError: couldn't find HOME environment -- expanding `~' 
    /src/test/ruby/test_file_exhaustive.rb:468:in `expand_path'
    /src/test/ruby/test_file_exhaustive.rb:468:in `test_expand_path_encoding_filesystem'

Please consider looking at them?