(Ruby) GZip Create / Extract .gz File

Demonstrates how to compress a file to create a .gz (GZip) file.

Note: The .gz file format is a compressed file format. It contains a single file. The .gz file format is not an archive format (i.e. it does not contain a collection of files/directories such as with the .zip, .rar, or .tar file formats). GZip is often combined with TAR to create a .tgz (or .tar.gz).

Note: It is possible for a .gz to contain more than one file, but this is very uncommon.

Chilkat Ruby Downloads install from rubygems.org gem install chilkat or download... Ruby Library for Windows, MacOS, Linux, Alpine Linux

require 'chilkat'

# This example assumes the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

gzip = Chilkat::CkGzip.new()

# File-to-file GZip:
# Compress "hamlet.xml" to create "hamlet.xml.gz"
success = gzip.CompressFile("hamlet.xml","hamlet.xml.gz")
if (success != true)
    print gzip.lastErrorText() + "\n";
    exit
end

# File-to-file ungzip
# Decompress "hamlet.xml.gz" to create "hamletOut.xml"
success = gzip.UncompressFile("hamlet.xml.gz","hamletOut.xml")
if (success != true)
    print gzip.lastErrorText() + "\n";
    exit
end

# File-to-string ungzip
# Decompress the contents of a .gz directly to a string variable:
# The 2nd argument indicates the charset of the character
# data after it is decompressed.

xmlStr = gzip.uncompressFileToString("hamlet.xml.gz","utf-8")
if (success != true)
    print gzip.lastErrorText() + "\n";
    exit
end

print xmlStr + "\n";

# The Chilkat GZip API provides much more flexibility than shown
# here.  See the reference documentation at 
# http://www.chilkatsoft.com/refdoc for more information