Zlib::GzipWriter

        # Zlib::GzipWriter < Zlib::GzipFile

(from ruby core)
---
Zlib::GzipWriter is a class for writing gzipped files.  GzipWriter
should be used with an instance of IO, or IO-like, object.

Following two example generate the same result.

    Zlib::GzipWriter.open('hoge.gz') do |gz|
      gz.write 'jugemu jugemu gokou no surikire...'
    end

    File.open('hoge.gz', 'w') do |f|
      gz = Zlib::GzipWriter.new(f)
      gz.write 'jugemu jugemu gokou no surikire...'
      gz.close
    end

To make like gzip(1) does, run following:

    orig = 'hoge.txt'
    Zlib::GzipWriter.open('hoge.gz') do |gz|
      gz.mtime = File.mtime(orig)
      gz.orig_name = orig
      gz.write IO.binread(orig)
    end

NOTE: Due to the limitation of Ruby's finalizer, you must explicitly
close GzipWriter objects by Zlib::GzipWriter#close etc.  Otherwise,
GzipWriter will be not able to write the gzip footer and will generate a
broken gzip file.
---
# Class methods:

    new
    open

# Instance methods:

    <<
    comment=
    flush
    mtime=
    orig_name=
    pos
    print
    printf
    putc
    puts
    tell
    write