IO wrapper that allows writing a limited amount of data
Maximum number of bytes that can be written
Number of bytes written
Wraps io
and allows up to limit
bytes to be
written
# File lib/rubygems/package/tar_writer.rb, line 33 def initialize(io, limit) @io = io @limit = limit @written = 0 end
Writes data
onto the IO, raising a FileOverflow exception if the number of bytes
will be more than limit
# File lib/rubygems/package/tar_writer.rb, line 43 def write(data) if data.bytesize + @written > @limit raise FileOverflow, "You tried to feed more data than fits in the file." end @io.write data @written += data.bytesize data.bytesize end