Compile your own Ruby versions, or use the ruby-build plugin to automate the process. Specify per-application environment variables with rbenv-vars. See more plugins on the wiki. Why choose rbenv over RVM? At a high level, rbenv intercepts Ruby commands using shim executables injected into your PATH , determines which Ruby version has been specified by your application, and passes your commands along to the correct Ruby installation.
When you run a command like ruby or rake , your operating system searches through a list of directories to find an executable file with that name. This list of directories lives in an environment variable called PATH , with each directory in the list separated by a colon:. Directories in PATH are searched from left to right, so a matching executable in a directory at the beginning of the list takes precedence over another one at the end.
Through a process called rehashing , rbenv maintains shims in that directory to match every Ruby command across every installed version of Ruby— irb , gem , rake , rails , ruby , and so on. Shims are lightweight executables that simply pass your command along to rbenv. So with rbenv installed, when you run, say, rake , your operating system will do the following:. When you execute a shim, rbenv determines which Ruby version to use by reading it from the following sources, in this order:.
You can use the rbenv shell command to set this environment variable in your current shell session. The first. You can modify the. You can modify this file using the rbenv global command. If the global version file is not present, rbenv assumes you want to use the "system" Ruby—i. Once rbenv has determined which version of Ruby your application has specified, it passes the command along to the corresponding Ruby installation. For example, you might have these versions installed:. Compatibility note : rbenv is incompatible with RVM.
Please make sure to fully uninstall RVM and remove any references to it from your shell initialization files before installing rbenv. Note that this also installs ruby-build , so you'll be ready to install other Ruby versions out of the box. To upgrade to the latest rbenv and update ruby-build with newly released Ruby versions, upgrade the Homebrew packages:.
Follow the printed instructions to set up rbenv shell integration. Verify that rbenv is properly set up using this rbenv-doctor script:. That's it! Installing rbenv includes ruby-build, so now you're ready to install some other Ruby versions using rbenv install. For a more automated install, you can use rbenv-installer. Chef Infra Client can be installed using this method.
Some of the most popular Chef-maintained cookbooks that contain custom resources useful when configuring machines running Microsoft Windows are listed below:. The file-based resources have attributes that support unique requirements within the Microsoft Windows platform, including inherits for file inheritance , mode for octal modes , and rights for access control lists, or ACLs.
Chef for Microsoft Windows. Was this page helpful? Yes, thanks! No, not really. The cost of fixing a bug exponentially increases the closer it gets to production.
Vagrant aims to mirror production environments by providing the same operating system, packages, users, and configurations, all while giving users the flexibility to use their favorite editor, IDE, and browser. Vagrant also integrates with your existing configuration management tooling like Ansible, Chef, Docker, Puppet or Salt, so you can use the same scripts to configure Vagrant as production.
With named gemsets, you can reliably and immediately push changes from one environment to another. Any Ruby based application will benefit from your use of RVM. RVM enables you to easily test both upgrade and escape paths very easily and consistently.
With RVM, you can run a test suite, rake tasks, benchmarks and gem commands against multiple ruby versions at the same time. Follow community best practices with code inspections verifying your code for many types of possible errors and providing on-the-fly improvements with quick-fix options. Automated yet safe refactorings help clean up your code and keep it more maintainable. Rails-aware refactorings help you perform project-wide changes: for example renaming a controller will also rename the helper, views, and tests.
Set breakpoints, run your code step by step and make use of all the available information at your fingertips.
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