diff options
| author | ayumin <ayumin@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2011-09-19 10:34:30 +0000 |
|---|---|---|
| committer | ayumin <ayumin@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2011-09-19 10:34:30 +0000 |
| commit | 6ec841b2df3bcf95180c7d8f6b73d80d7f44d4e6 (patch) | |
| tree | f071cae5da119ce9978904494ec3f237a348728f /lib | |
| parent | d4db53a0e00f06e44b583156359258aa213fda52 (diff) | |
* lib/fileutils.rb (module FileUtils): improve performance of
FileUtils.compare_stream. a patch by Masaki Matsushita.
[Feature #5337] [ruby-core:39622]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@33297 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/fileutils.rb | 17 |
1 files changed, 7 insertions, 10 deletions
diff --git a/lib/fileutils.rb b/lib/fileutils.rb index d4213dd0be..168bef7405 100644 --- a/lib/fileutils.rb +++ b/lib/fileutils.rb @@ -823,16 +823,13 @@ module FileUtils # def compare_stream(a, b) bsize = fu_stream_blksize(a, b) - sa = sb = nil - while sa == sb - sa = a.read(bsize) - sb = b.read(bsize) - unless sa and sb - if sa.nil? and sb.nil? - return true - end - end - end + sa = "" + sb = "" + begin + a.read(bsize, sa) + b.read(bsize, sb) + return true if sa.empty? && sb.empty? + end while sa == sb false end module_function :compare_stream |