[Mac OS X] Dir.glob で取得したファイル名のバイト列が異なる

Ruby Development
1

Ruby 2.0 $B$^$G$O(B OS X $B$N%U%!%$%kL>$r(B Dir.glob
$B$G<hF@$7$?$H$-$K$O(B
OS X $B%U%!%$%k%7%9%F%`$,JV$9(B Normalization Form D $B%P%$%HNs$,(B
Dir.glob $B$G(B
$B<hF@$5$l$F$*$j$^$7$?!#(B

Ruby 2.1 $B$+$i$O(B Normalization Form C $B$KJQ49$7$?%P%$%HNs$,(B
Dir.glob $B$G(B
$B<hF@$5$l$k$h$&$K$J$C$F$$$k$h$&$J$N$G$9$,!";EMM$,JQ$o$C$?$N$G$7$g$&$+!)(B

% cat test.rb
system “touch ‘$B$,(B’”
Dir.glob("*").each do |file|
next if file == $0
puts “** #{file} **”
file.each_byte do |b|
p b
end
end

% ruby -v test.rb
ruby 2.0.0p247 (2013-06-27 revision 41674) [universal.x86_64-darwin13]
** $B$,(B **
227
129
139
227
130
153

% ruby -v test.rb
ruby 2.1.0p0 (2013-12-25 revision 44422) [x86_64-darwin13.0]
** $B$,(B **
227
129
140

2

$BC<E*$K$O;EMMJQ99$G$9!#(B
$BD9Bg$J5DO@$N2L$F$KJQ99$5$l$?$o$1$J$N$G$9$,!“>:Y$r$9$0$K$O;W$$=P$;$J$$$N$G!”(B
$B$5$7$"$?$C$F$O(B Bug #7267: Dir.glob on Mac OS X returns unexpected string encodings for unicode file names - Ruby master - Ruby Issue Tracking System
$B$r8fMw$/$@$5$$!#(B
$B2r@b$,I,MW$G$7$?$i2r@b$7$^$9!#(B

2014$BG/(B1$B7n(B3$BF|(B 16:33 Watson [email protected]:

3

$B$4JVEz$"$j$,$H$&$4$6$$$^$9!#(B

$B;EMMJQ99$H$$$&$3$H$J$N$G!":#8e:F$S?6$kIq$$$,JQ$o$k$3$H$,$J$5$=$&$J$N$G!"(B
$B8=:_!";d$,Ax6x$7$F$$$kLdBj$K$D$$$F$O$3$A$i$GBP=h$7$?$$$H;W$$$^$9!#(B

$B$"$j$,$H$&$4$6$$$^$7$?!#(B

4

OS X$B$N(BHFS+$B>e$N%U%!%$%kL>$r(BRuby$B$G$I$&07$&$Y$-$+$K$D$$$F$O!“(B
$B:#$G$bCN8+$,==J,$KF@$i$l$F$$$k$H$O8@$$Fq$$$N$G!”(B
$B$I$N$h$&$JLdBj$KAx6x$7$?$N$+6&M-$7$F$$$?$@$1$k$H=u$+$j$^$9!#(B

2014$BG/(B1$B7n(B9$BF|(B 10:02 Watson [email protected]:

5

$B!V%U%!%$%k$,B8:_$9$k$+!W$N%A%'%C%/$G$7$?$i!“(BDir.glob$B$G<hF@$7$?$b$N$HHf3S$G$O$J$/!”(B
File.exist?($B%U%!%$%kL>(B)$B$NJ}$,$$$$$G$9$h!#(B

2.1$B$N(BString#encode$B$O0lDL$j3NG’$7$F<B:]$N%U%!%$%k%7%9%F%`$HF1$8$h$&$KF0$/$h$&$K$7$?$D$b$j$G$9$,!“(B
$B>-Mh$N%P!<%8%g%s$G5sF0$,JQ2=$9$k2DG=@-$O$”$j$^$9$7!“(B
HFS+$B$ODL>o(Bcase
insensitive$B$G%^%&%s%H$5$l$^$9$+$i!”(BHFS+$B$HF1$8(Bcase
insensitive$B$JHf3S$bI,MW$G$9!#(B
$B$G!“$b$A$m$s(Bcase sensitive$B$G%^%&%s%H$5$l$k$3$H$b$”$j$($^$9!#(B

$B$J$I$r9MN8$9$k$H!"AGD>$K%U%!%$%k%7%9%F%`$KJ9$/$N$,0lHV$G$9!#(B

2014$BG/(B1$B7n(B9$BF|(B 10:17 Watson [email protected]:

6

RubyMotion $B$G(B iOS/OSX $B%"%W%j$r%S%k%I$9$k:]$K(B CRuby
$B$r;HMQ$7$F$$j$^$9!#(B
$B%S%k%I$9$kESCf$G!“%f!<%6$,;XDj$7$?%”%W%jL>$N%U%!%$%k$,B8:_$7$F$$$k$+(B
$B%A%'%C%/$9$k=hM}$,$“$j!”(BDir.glob
$B$rMQ$$$F%U%!%$%kL>$r<hF@$7$F$$j$^$9!#(B

$B0JA0(B String#encode $B$G(B Normalization Form D $B$+$i(B
Normalization Form C $B$X(B
$BJQ49$G$-$J$$LdBj$,$"$jJs9p$7$F$*$j$^$9!#(B
http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-dev/47680

$B$=$N$?$a!“%f!<%6$,%”%W%j$r%S%k%I$9$k:]$K(B CRuby 1.8$B!“(B1.9 $B$d(B
2.0 $B$rMxMQ$7(B
$B$F$$$F$b(B
$BF0$/$h$&$K%U%!%$%kL>$r07$&2U=j$r(B Normalization Form D
$B$GE}0l$7$F$$$?$?$a!”(B
$B:#2sJs9p$7$?FbMF$K$D$$$FAx6x$7$?<!Bh$G$9!#(B

7

Ruby 2.1.0 の NEW に Dir.glob の仕様変更について記載がないようなので、
追記していただければ同様のことで苦しまれる方が減るのかと思われます。