Read .gz file directly

Ruby
1

How to read the xxx.gz file directly and don’t decompress the file.

Thanks.

2

On Mon, Sep 5, 2011 at 10:45 AM, CC Chen [email protected] wrote:

How to read the xxx.gz file directly and don’t decompress the file.

http://www.ruby-doc.org/stdlib/libdoc/zlib/rdoc/classes/Zlib/GzipReader.html

Cheers

robert

3

On Sep 6, 2011, at 8:32 PM, CC Chen wrote:

Robert K. wrote in post #1020184:

On Mon, Sep 5, 2011 at 10:45 AM, CC Chen [email protected] wrote:

How to read the xxx.gz file directly and don’t decompress the file.

http://www.ruby-doc.org/stdlib/libdoc/zlib/rdoc/classes/Zlib/GzipReader.html

Which kind gem should I install first??

The Standard Library is libraries that are all included with a Ruby
distribution, but (unlike Core) are not included in the runtime by
default. The only thing you need to do is:

require 'zlib'
4

Robert K. wrote in post #1020184:

On Mon, Sep 5, 2011 at 10:45 AM, CC Chen [email protected] wrote:

How to read the xxx.gz file directly and don’t decompress the file.

http://www.ruby-doc.org/stdlib/libdoc/zlib/rdoc/classes/Zlib/GzipReader.html

Cheers

robert

Which kind of gem should I install first??

Thanks,

5

CC Chen wrote in post #1020179:

How to read the xxx.gz file directly and don’t decompress the file.

You don’t want to decompress the file?

data = File.read(“foo.gz”)

You do want to decompress the file? Use the built-in zlib support:

require ‘zlib’
data = Zlib::GzipReader.open(“foo.gz”) { |f| f.read }