[ANN] GemInstaller 0.5.3 Released

August 26, 2009 Chad Woolley

This fixes several bugs that people have complained about for quite a while. Please let me know if anything is broken.

GemInstaller 0.5.3 has been released!



  • 0.5.3 / 2009-08-25
  • Many long overdue bugfixes and patches, see
    http://tinyurl.com/geminstaller-0-5-3-release for details.
  • Thanks to Greg Fitzgerald, Britt Crawford, John Trupiano, Gabriel
    Gironda, and Eric Hodel for patches and assistance.
  • Issues with case statement under Ruby 1.9
  • GemInstaller cannot distinguish between gems that have the ame name
    but capitalized differently.
  • add ./ci as default location for config file
  • Disable GemInstaller install in default rails preinitializer.rb, but
    fork if it is used
  • autogem() fails when run for newly-installed gem
  • Sometimes installing fails due to RubyGems cache not being cleared
    between multiple API calls


Automated Gem installation, activation, and much more!


GemInstaller provides automated installation, loading and activation
of RubyGems. It uses a simple YAML config file to:

  • Automatically install the correct versions of all required gems
    wherever your app runs.
  • Automatically ensure installed gems and versions are consistent
    across multiple applications, machines, platforms, and environments
  • Automatically activate correct versions of gems on the ruby load
    path when your app runs (’require_gem’/’gem’)
  • Automatically reinstall missing dependency gems (built in to RubyGems > 1.0)
  • Automatically detect correct platform to install for multi-platform
    gems (built in to RubyGems > 1.0)
  • Print YAML for “rogue gems” which are not specified in the current
    config, to easily bootstrap your config file, or find gems that were
    manually installed without GemInstaller.
  • Allow for common configs to be reused across projects or
    environments by supporting multiple config files, including common
    config file snippets, and defaults with overrides.
  • Allow for dynamic selection of gems, versions, and platforms to be
    used based on environment vars or any other logic.
  • Avoid the “works on demo, breaks on production” syndrome
  • Find lost socks.

Quick Start

See http://geminstaller.rubyforge.org/documentation/index.html


  • [sudo] gem install geminstaller

About the Author


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