method
compare_stream
ruby latest stable - Class:
FileUtils
compare_stream(a, b)private
Returns true if the contents of a stream a and b are identical.
# File lib/fileutils.rb, line 745
def compare_stream(a, b)
bsize = fu_stream_blksize(a, b)
sa = String.new(capacity: bsize)
sb = String.new(capacity: bsize)
begin
a.read(bsize, sa)
b.read(bsize, sb)
return true if sa.empty? && sb.empty?
end while sa == sb
false
end