https://github.com/blackwinter/libcdb-ruby

Ruby bindings for CDB Constant Databases.
https://github.com/blackwinter/libcdb-ruby

cdb ruby

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Ruby bindings for CDB Constant Databases.

• Host: GitHub
• URL: https://github.com/blackwinter/libcdb-ruby
• Owner: blackwinter
• License: other
• Created: 2012-01-18T14:07:32.000Z (almost 13 years ago)
• Default Branch: master
• Last Pushed: 2016-10-12T10:06:05.000Z (about 8 years ago)
• Last Synced: 2024-10-09T09:16:50.247Z (about 1 month ago)
• Topics: cdb, ruby
• Language: C
• Homepage: http://blackwinter.github.io/libcdb-ruby
• Size: 479 KB
• Stars: 12
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README
  • Changelog: ChangeLog
  • License: COPYING

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README

        
= libcdb-ruby - Ruby bindings for CDB Constant Databases.

== VERSION

This documentation refers to libcdb-ruby version 0.2.1

== DESCRIPTION

The libcdb-ruby library provides Ruby bindings for the

TinyCDB[http://www.corpit.ru/mjt/tinycdb.html] package for

creating and reading {constant databases}[http://cr.yp.to/cdb.html].

  require 'libcdb'

  # creating

  LibCDB::CDB.open('foo.cdb', 'w') { |cdb|

    cdb['a'] = 'one'

    cdb['b'] = '123'

  }

  # reading

  LibCDB::CDB.open('foo.cdb') { |cdb|

    cdb['a']  #=> "one"

    cdb['b']  #=> "123"

    cdb['c']  #=> nil

  }

  # hybrid

  LibCDB::CDB.open('foo.cdb', 'w+') { |cdb|

    cdb['a'] = 'one'

    cdb['b'] = '123'

    cdb['a']  #=> "one"

    cdb['b']  #=> "123"

    cdb['c']  #=> nil

    # database is truncated whenever

    # a new writer is opened:

    cdb['a'] = 'two'

    cdb['c'] = 'xyz'

    cdb['a']  #=> "two"

    cdb['b']  #=> nil

    cdb['c']  #=> "xyz"

  }

  # update existing database

  LibCDB::CDB.open('foo.cdb', 'r+') { |cdb|

    # store existing records

    cdb << cdb.to_h

    # and add a new one

    cdb['d'] = '42'

    cdb['a']  #=> "two"

    cdb['b']  #=> nil

    cdb['c']  #=> "xyz"

    cdb['d']  #=> "42"

  }

== PREREQUISITES

* Ruby 1.9+ (see {below}[rdoc-label:label-SUPPORTED+PLATFORMS] for details)

* TinyCDB[http://www.corpit.ru/mjt/tinycdb.html] headers (not needed when

  installing the fat binary gem on Windows)

  Debian/Ubuntu:: +libcdb-dev+

  Fedora/SuSE::   +tinycdb-devel+

  Gentoo::        +dev-db/tinycdb+

== SUPPORTED PLATFORMS

Linux::   MRI 1.9.3, 2.0 & 2.1 (Tested on 64-bit Ubuntu GNU/Linux

          with 1.9.3p550, 2.0.0p594 and 2.1.5p273)

Windows:: MRI 1.9.3 (Tested on 32-bit Windows XP with 1.9.3p194)

== LINKS

CDB::           http://cr.yp.to/cdb.html

TinyCDB::       http://www.corpit.ru/mjt/tinycdb.html

Documentation:: https://blackwinter.github.com/libcdb-ruby

Source code::   https://github.com/blackwinter/libcdb-ruby

RubyGem::       https://rubygems.org/gems/libcdb-ruby

Travis CI::     https://travis-ci.org/blackwinter/libcdb-ruby

== AUTHORS

* Jens Wille 

== CREDITS

This project was inspired by ruby-cdb[https://github.com/mbj/ruby-cdb] and

cdb-full[https://rubygems.org/gems/cdb-full]. The code organization, especially the

extension part, was modeled after libxml-ruby[https://github.com/xml4r/libxml-ruby].

And props to the rake-compiler[http://github.com/luislavena/rake-compiler]

team for making extension building such a breeze :)

== LICENSE AND COPYRIGHT

Copyright (C) 2012 University of Cologne,

Albertus-Magnus-Platz, 50923 Cologne, Germany

Copyright (C) 2013-2016 Jens Wille

libcdb-ruby is free software: you can redistribute it and/or modify it

under the terms of the GNU Affero General Public License as published by

the Free Software Foundation, either version 3 of the License, or (at your

option) any later version.

libcdb-ruby is distributed in the hope that it will be useful, but

WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY

or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public

License for more details.

You should have received a copy of the GNU Affero General Public License

along with libcdb-ruby. If not, see .