RubyGems

Last updated
RubyGems
Stable release
3.5.16 [1] / 18 July 2024;14 days ago (18 July 2024)
Repository
Written in Ruby
Operating system Cross-platform
Type Package manager
License Ruby License
Website rubygems.org
Total gems 173,000+
Total downloads 109+ billion

RubyGems is a package manager for the Ruby programming language that provides a standard format for distributing Ruby programs and libraries (in a self-contained format called a "gem"), a tool designed to easily manage the installation of gems, and a server for distributing them. It was created by Chad Fowler, Jim Weirich, David Alan Black, Paul Brannan and Richard Kilmer during RubyConf 2004. [2]

Contents

The interface for RubyGems is a command-line tool called gem which can install and manage libraries (the gems). [3] RubyGems integrates with Ruby run-time loader to help find and load installed gems from standardized library folders. Though it is possible to use a private RubyGems repository, the public repository is most commonly used for gem management.

The public repository helps users find gems, resolve dependencies and install them. RubyGems is bundled with the standard Ruby package as of Ruby 1.9. [4]

History

Development on RubyGems started in November 2003 and was released to the public on March 14, 2004, or Pi Day 2004. [5] In 2010, the default public repository for gems moved from gems.rubyforge.org to rubygems.org, which is still in use. Also, RubyGems development was moved to GitHub in 2010. Though RubyGems has existed since Ruby 1.8, it was not a part of the standard Ruby distribution until Ruby 1.9.

Previously, compatibility with RubyGems and Ruby varied. Many versions of RubyGems are almost fully incompatible with many versions of Ruby and some versions had key features unusable. For example, Ruby 1.9 came with RubyGems 1.3.7 in its standard distribution, but RubyGems 1.4.x was not compatible with Ruby 1.9. This meant that updating RubyGems on Ruby 1.9 was not possible until RubyGems 1.5.0 was released in 2011, two years after the first stable release of Ruby 1.9. [6] These compatibility issues led to a rapid development of RubyGems, switching to a 4–6 week release schedule. This is reflected in there being 38 releases from 2004 to 2010 and 117 releases from 2011 to 2016. 45 versions were released in 2013, which is the highest number of releases in a year for RubyGems. [5]

Structure of a gem

Every gem contains a name, version and platform. Gems work only on ruby designed for a particular platform based on CPU architecture and operating-system type and version. [7]

Each gem consists of:

  1. Code
  2. Documentation
  3. Gem specification (Gemspec)

The code organization follows the following structure for a gem called gem_name:

gem_name/ ├── bin/ │   └── gem_name ├── lib/ │   └── gem_name.rb ├── test/ │   └── test_gem_name.rb ├── README ├── Rakefile └── gem_name.gemspec

Security concerns

Since gems run their own code in an application it may lead to various security issues due to installation of malicious gems. The creator of a malicious gem may be able to compromise the user's system or server. [8]

A number of methods have been developed to counter the security threat:

See also

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References

  1. ↑ "Release 3.5.16". 18 July 2024. Retrieved 27 July 2024.
  2. ↑ "174 Rubygems with Eric Hodel". Archived from the original on 2021-07-31. Retrieved 2018-05-09.
  3. ↑ "RubyGems Command Reference". guides.rubygems.org. Retrieved 2016-09-18.
  4. ↑ "Ruby 1.9.1 changelog". Archived from the original on 2022-01-17.
  5. 1 2 "Version history of RubyGems". GitHub. Retrieved 2016-09-18.
  6. ↑ "Ruby 1.9.1 released". www.ruby-lang.org. Retrieved 2016-09-18.
  7. ↑ "What is a gem? - RubyGems.org". guides.rubygems.org. Retrieved 2016-09-18.
  8. ↑ "Security - RubyGems Guides". guides.rubygems.org. Retrieved 2016-09-23.
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