Using Gradle
Introduction to Gradle
Gradle is an open-source build automation tool that is designed to be flexible and powerful. It is widely used in Java and Scala projects for managing dependencies, building projects, and automating tasks.
Installing Gradle
To get started with Gradle, you need to install it on your machine. You can download it from the official website or use a package manager.
To install Gradle using SDKMAN, run:
After installation, verify it by running:
Gradle version: 7.3.3
Creating a Gradle Project
Once Gradle is installed, you can create a new project using the following command:
This command will guide you through a series of prompts to set up your project structure.
Understanding the Build File
Gradle uses a build file (usually named build.gradle) to define project properties and dependencies. Here’s a simple example:
build.gradle:
This configuration applies the Scala plugin, specifies the repository to use, and adds the Scala library as a dependency.
Building the Project
To build your project, simply run:
This command compiles your code, runs tests, and packages your project as specified in your build file.
Running the Application
To run your Scala application, you can use the following command:
Make sure you have defined a mainClassName in your build file to specify the entry point of your application.
Example build.gradle entry:
Conclusion
Gradle is a powerful tool for managing builds in Scala and other languages. With its flexibility and strong community support, it is an excellent choice for modern software development. By following this tutorial, you should now have a solid understanding of how to use Gradle to build and manage Scala projects.