Rubygems

As with most programming languages, Ruby leverages a rubygems set of third-party libraries. Nearly all of these libraries are released in the form of a gema packaged library or application that can be installed with a tool called RubyGems, rubygems.

Ruby , RubyGems and Bundler can be a bit of an intertwined mess -- it can be hard to tell what magic incantation will tell you what went wrong and how to fix it. The secret is that they're three separate layers. Ruby was originally designed without RubyGems. RubyGems is a separate layer on top with a few seams where it was designed to be detached. Bundler was created for Rails 3. In other words, it makes sense to learn them separately even if you'll only use them together.

Rubygems

A package also known as a library contains a set of functionality that can be invoked by a Ruby program, such as reading and parsing an XML file. We call these packages "gems" and RubyGems is a tool to install, create, manage and load these packages in your Ruby environment. RubyGems is also a client for RubyGems. See our guide on publishing a Gem at guides. Installing and managing a Gem is done through the gem command. For more information about how to use RubyGems, see our RubyGems basics guide at guides. RubyGems is already installed in your Ruby environment, you can check the version you have installed by running gem --version in your terminal emulator. It's better to use a Ruby Version Manager, such as rbenv or chruby. If you still want to use the version provided by your OS package manager, please also use your OS package manager to upgrade rubygems, and disregard any other installation instructions given below. RubyGems and Bundler are released in sync, although they do not share their major version number.

Bundler also has a facility for rubygems gems -- that is, copying specific versions to a local directory and using them there, not from system directories, rubygems.

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. The interface for RubyGems is a command-line tool called gem which can install and manage libraries the gems. 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.

Welcome to the RubyGems monthly update! Read on to find out what updates were made to RubyGems and RubyGems. In December, we released the following version of RubyGems 3. These updates mark significant milestones in our continuous effort to enhance the Rubygems development experience. With the yearly minor version release of RubyGems 3. This enables the usage of more modern features of the Ruby language; improving efficiency, performance and memory usage. It also reduces our test runtimes and removes the more error prone Ruby 2. We spent time this month modernizing the codebase to take advantage of this change.

Rubygems

What each gem command does, and how to use it. The cert command manages signing keys and certificates for creating signed gems. For further reading on signing gems see ri Gem::Security. The check command can list and repair problems with installed gems and specifications and will clean up gems that have been partially uninstalled. The contents command lists the files in an installed gem. The listing can be given as full file names, file names without the installed directory prefix or only the files that are requireable. The dependency commands lists which other gems a given gem depends on. For local gems only the reverse dependencies can be shown which gems depend on the named gem. The dependency list can be displayed in a format suitable for piping for use with other commands.

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There are other sources of libraries though. The first thing Bundler does is to make undeclared gems "invisible. The easiest way to do this manually is to type "bundle exec" in front of your process name. RubyGems also has some command-line commands and strong opinions that old versions of Ruby didn't originally have. You can upgrade it separately from your Ruby language version. Be sure to run with "bundle exec" or this won't work. Bundler also figures out which Gem versions are compatible with which other versions. For example, Ruby 1. Notifications Fork 1. Archived from the original on We won't discuss version managers like rvm , rbenv or chruby here. You can support Ruby Central by attending or sponsoring a conference, or by joining as a supporting member. Categories : Free package management systems Free software programmed in Ruby.

The Specification class contains the information for a gem.

Bundler also figures out which Gem versions are compatible with which other versions. RubyGems is a Ruby packaging system designed to facilitate the creation, sharing and installation of libraries in some ways, it is a distribution packaging system similar to, say, apt-get , but targeted at Ruby software. You're sure you have a bug, but don't know what to do next? Report repository. Finding libraries The main place where libraries are hosted is RubyGems. It keeps a hash of what files have already been required. In other words, it makes sense to learn them separately even if you'll only use them together. The secret is that they're three separate layers. Code of conduct. Getting Help. A package also known as a library contains a set of functionality that can be invoked by a Ruby program, such as reading and parsing an XML file.