Jetbrains IDE

I’m using JetBrains IntelliJ IDEA Ultimate. Some of the tools include:

DataGrip - connect to databases
RubyMine - for Ruby

Configuration

Project Structure

Setup your Project SDK (e.g. ruby-2.6.2) Setup your Modules (e.g. click ‘Sources’ to identify code, ‘Tests’ for tests)

Add a Content Root

In IntelliJ, the top level folder that has all of your files that contain your source code, build scripts, tests, is called a content root. There is normally one content root. You should see this appear next to ‘Add Content Root’.

https://www.jetbrains.com/help/idea/content-roots.html

Folder Categories

There are a few ways you can categorize your folders. These include:

Sources Root - production code that should be compiled
Generated Sources Root - generated automatically rather than written manually, can be regenerated
Test Sources Root - keep tests separate from production code
Resources Root - (Java Only) - Resource files used in your application (e.g. images, configuration XML, and properties files)
Test Resources Root - these folders are for resource files associated with your test sources
Excluded - files in these folders are ignored by code completion, navigation, and inspection
Load Path Root - (Ruby only) - the load path is where the require and load statements look for files

https://www.jetbrains.com/help/idea/content-roots.html#folder-categories

Example Ruby Folder Categories

For a gem:

.buildkite - Excluded .bundle - Excluded .idea - Excluded bin - Resources coverage - Excluded docs - Resources exec - Excluded lib - Sources out - Excluded spec - Tests