With that done, use the gem command to install Bundler, a tool that manages gem dependencies for projects. This can add a significant amount of time to each gem’s installation process, so you can turn off local documentation generation by creating a file called ~/.gemrc which contains a configuration setting to turn off this feature: When you install a gem, the installation process generates local documentation. In this step, you will configure the gem command to prepare for the Rails installation. You use the gem command to manage these gems. Gems are packages of Ruby libraries and programs that can be distributed throughout the Ruby ecosystem. Next, you will set yourself up to work with Ruby packages and libraries, or gems, which will then allow you to install Rails. You now have one version of Ruby installed and have set your default Ruby version. To install and use a different version of Ruby, run the rbenv commands with a different version number, such as rbenv install 2.7.6 and rbenv global 2.7.6. bash_profile in nano or your favorite text editor: Next, you’ll add the command eval "$(rbenv init -)" to your ~/.bash_profile file to make rbenv load automatically when you open up the Terminal. This may install several other dependencies and take some time. This plugin adds the rbenv install command, which streamlines the installation process for new versions of Ruby. This will install rbenv and the ( ) plugin. To download the rbenv package with Homebrew, run the following command: To do this on macOS, this tutorial will use the package manager Homebrew. In this step, you will install rbenv and make sure that it starts automatically at boot. The Homebrew package manager installed on your macOS machine.A few Rails features, such as the Asset Pipeline, depend on a JavaScript Runtime. ![]() Node.js installed on your macOS machine, as explained in How to Install Node.js and Create a Local Development Environment on macOS.This tutorial has been tested on macOS 12.4 Monterey. One computer or virtual machine with macOS installed, with administrative access to that machine and an internet connection.In this tutorial, you will use rbenv to install and set up Ruby on Rails on your local macOS machine. Rbenv provides support for specifying application-specific versions of Ruby, lets you change the global Ruby for each user, and allows you to use an environment variable to override the Ruby version. Using rbenv will provide you with a well-controlled and robust environment for developing your Ruby on Rails applications, allowing you to easily switch your working version of Ruby as needed. One way to install Ruby and Rails is with the command-line tool rbenv. The Ruby programming language, combined with the Rails development framework, makes app development quick and efficient. Ruby on Rails is a popular application stack for developers looking to create sites and web apps.
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