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RubyGems is a package management framework for Ruby, which provides a standard format for distributing Ruby programs and libraries. It is essential for Ruby developers as it simplifies the process of managing and installing Ruby libraries. On macOS, Ruby and RubyGems come pre-installed, making it easier for developers to get started with Ruby development. This article will guide you through the process of using RubyGems on macOS, including installing gems, updating them, and managing your gem environment.
Examples:
1. Checking Ruby and RubyGems Installation:
Before starting, ensure that Ruby and RubyGems are installed on your macOS. Open the Terminal application and run the following commands:
ruby -v
gem -v
This will display the version of Ruby and RubyGems installed on your system.
2. Installing a Gem:
To install a gem, use the gem install
command followed by the name of the gem. For example, to install the rails
gem, run:
gem install rails
This will download and install the Rails gem along with its dependencies.
3. Listing Installed Gems:
To list all the gems installed on your system, use the gem list
command:
gem list
This will display a list of all installed gems and their versions.
4. Updating a Gem:
To update a specific gem to its latest version, use the gem update
command followed by the name of the gem. For example, to update the rails
gem, run:
gem update rails
To update all installed gems, simply run:
gem update
5. Uninstalling a Gem:
If you need to remove a gem, use the gem uninstall
command followed by the name of the gem. For example, to uninstall the rails
gem, run:
gem uninstall rails
6. Creating a Gem:
To create your own gem, you need to follow these steps:
mkdir my_gem
cd my_gem
my_gem.gemspec
file with the following content: Gem::Specification.new do |spec|
spec.name = 'my_gem'
spec.version = '0.1.0'
spec.summary = 'A simple gem'
spec.files = ['lib/my_gem.rb']
spec.require_paths = ['lib']
end
lib
directory and a my_gem.rb
file inside it: mkdir lib
touch lib/my_gem.rb
gem build my_gem.gemspec
gem install ./my_gem-0.1.0\.gem