RubyMine is famous for its outstanding code analysis routines, which underpin smart code inspections and automatic refactorings and help you eliminate code smells.
- Use a consistent code style, by having RubyMine automatically apply the configured code style as you write code, or by reformatting whole files at once.
- Configure your code style for any language, including indents, spaces, aligning rules, and so forth, and share it with your teammates.
- RubyMine can also automatically apply the code style specified in the .editorconfig project file.
- Inspired by the best community practices, RubyMine verifies your code for many types of possible errors and code smells: unreachable code, incorrect call argument count, unused local variable, etc.
- Rails inspections warn you about wrong usages of model methods in a view, view helper or controller action; deprecated Rails features; and more.
- All inspections have a description and can be switched on or off, or configured as necessary.
On-the-fly code analysis and fixes
- According to its list of inspections, RubyMine performs on-the-fly code analysis and highlights errors right as you type.
- Every inspection suggests an improvement with a quick-fix option, as well as the ability to disable a rule or hide a warning.
- Quick-fixes allow you to create many project elements from their usage, such as new method, action, partial, or file. You can also use them to refactor or change code style.
- Refactor any code with fast and safe rename and delete; extract method/module/superclass; introduce variable/constant/parameter; inline variable/method; and more.
- All the refactorings are, of course, Ruby on Rails aware; e.g. renaming a controller will also rename helper, views and tests.
- There are also Rails-specific refactorings, e.g. 'Extract Partial' which allows you to move a part of a view file code to a separate partial view.