How to Install Ruby on Mac OS X with RVM. This article explains why you should avoid using the version of Ruby bundled with Mac OS X and should instead install your own version of Ruby with RVM, the Ruby Version Manager. Hands Off the System Ruby. Apple bundles the Ruby programming language with OS X. However, the main caveat for using the. I created a new rails app: rails new -d postgresql. However, I cannot get the pg gem to install. I had previously installed postgres using brew and it starts up automatically with my Mac. I have tried several things posted here on SO. I am using ruby 2.0. When running bundle install, I get the error. At the time of this writing, rails 4.2 is the current version. If a new version is out you can name the gemset it appropriately. Use the following to install the latest version of rails: $ gem install rails. After it finishes installing, check that rails is installed: $ rails -v. If you need to use sudo or rvmsudo after the install is complete, some part of the install directions were not properly followed. This usually is because people execute the install as root, rather than executing the installation instructions from a non-privileged user account. Installing a specific version.
1 The Easy Way
The easiest and recommended way to get a development environment ready to hack is to use the Rails development box.
2 The Hard Way
In case you can't use the Rails development box, see the steps below to manuallybuild a development box for Ruby on Rails core development.
2.1 Install Git
Ruby on Rails uses Git for source code control. The Git homepage has installation instructions. There are a variety of resources on the net that will help you get familiar with Git:
- Try Git course is an interactive course that will teach you the basics.
- The official Documentation is pretty comprehensive and also contains some videos with the basics of Git.
- Everyday Git will teach you just enough about Git to get by.
- GitHub offers links to a variety of Git resources.
- Pro Git is an entire book about Git with a Creative Commons license.
2.2 Clone the Ruby on Rails Repository
Navigate to the folder where you want the Ruby on Rails source code (it will create its own rails subdirectory) and run:
2.3 Install Additional Tools and Services
Some Rails tests depend on additional tools that you need to install before running those specific tests.
Here's the list of each gems' additional dependencies:
- Action Cable depends on Redis
- Active Record depends on SQLite3, MySQL and PostgreSQL
- Active Storage depends on Yarn (additionally Yarn depends onNode.js), ImageMagick, FFmpeg, muPDF, and on macOSalso XQuartz and Poppler.
- Active Support depends on memcached and Redis
- Railties depend on a JavaScript runtime environment, such as havingNode.js installed.
Install all the services you need to properly test the full gem you'll bemaking changes to.
Redis' documentation discourage installations with package managers as those are usually outdated. Installing from source and bringing the server up is straight forward and well documented on Redis' documentation.
Active Record tests must pass for at least MySQL, PostgreSQL, and SQLite3. Subtle differences between the various adapters have been behind the rejection of many patches that looked OK when tested only against single adapter.
Below you can find instructions on how to install all of the additionaltools for different OSes.
2.3.1 macOS
On macOS you can use Homebrew to install all of theadditional tools.
To install all run:
You'll also need to start each of the installed services. To list allavailable services run:
You can then start each of the services one by one like this:
Replace mysql with the name of the service you want to start.
2.3.2 Ubuntu
To install all run:
2.3.3 Fedora or CentOS
To install all run:
2.3.4 Arch Linux
To install all run:
If you are running Arch Linux, MySQL isn't supported anymore so you will need touse MariaDB instead (see this announcement).
2.3.5 FreeBSD
To install all run:
Or install everything through ports (these packages are located under thedatabases folder).
If you run into troubles during the installation of MySQL, please seethe MySQL documentation.
2.4 Database Configuration
There are couple of additional steps required to configure database enginesrequired for running Active Record tests.
In order to be able to run the test suite against MySQL you need to create a user named rails with privileges on the test databases:
PostgreSQL's authentication works differently. To setup the development environmentwith your development account, on Linux or BSD, you just have to run:
and for macOS:
Then, you need to create the test databases for both MySQL and PostgreSQL with:
You'll see the following warning (or localized warning) during activating HStore extension in PostgreSQL 9.1.x or earlier: 'WARNING: => is deprecated as an operator'.
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You can also create test databases for each database engine separately:
and you can drop the databases using:
Using the Rake task to create the test databases ensures they have the correct character set and collation.
If you're using another database, check the file activerecord/test/config.yml or activerecord/test/config.example.yml for default connection information. You can edit activerecord/test/config.yml to provide different credentials on your machine if you must, but obviously you should not push any such changes back to Rails.
2.5 Install JavaScript dependencies
If you installed Yarn, you will need to install the javascript dependencies:
2.6 Install Bundler gem
Get a recent version of Bundler
and run:
or:
if you don't need to run Active Record tests.
2.7 Contribute to Rails
After you've setup everything, read how you can start contributing.
Feedback
You're encouraged to help improve the quality of this guide.
Please contribute if you see any typos or factual errors. To get started, you can read our documentation contributions section.
You may also find incomplete content or stuff that is not up to date. Please do add any missing documentation for master. Make sure to check Edge Guides first to verify if the issues are already fixed or not on the master branch. Check the Ruby on Rails Guides Guidelines for style and conventions.
If for whatever reason you spot something to fix but cannot patch it yourself, please open an issue.
Install Ruby On Rails Mac Mojave
And last but not least, any kind of discussion regarding Ruby on Rails documentation is very welcome on the rubyonrails-docs mailing list.
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