It is useful if you want to enforce the code style only on new code for instance. This baseline is used when running a check to tell ktlint to ignore the issues it contains.

KtlintGenerateBaseline will create a baseline.xml file in each of the modules where ktlint is applied. Note that some issues cannot be solved automatically and will require manual editing.

KtlintFormat on top of running a check, will apply code styling rules directly to make your code compliant. It will succeed when there is no formatting issue, and fail when there is one or more. KtlintCheck will run a check through the modules where ktlint is applied. You are now able to run gradle tasks such as the following: Optionally, add the following to apply the plugin to all project modulesĪfter running a Gradle Project Sync, ktlint should now have been added to your project! Usage In order to use ktlint in an Android project, we will use Jonathan Leitschuh's ktlint Gradle plugin which wraps the original ktlint and creates Gradle tasks that run ktlint checks and can even directly apply style corrections on your codebase.įirst, add the plugin to your project's build script file adle(.kts) Then we see how we can use it through CI/CD to validate code formatting. In this guide, we will see how to setup ktlint and use it in a project. Developers can use ktlint to easily identify and fix style issues in their codebase, resulting in fewer bugs and a more maintainable codebase overall. It validates code for compliance with coding standards such as the Kotlin Style Guide and assists developers in writing clean and consistent code. Ktlint is a static code analysis tool for Kotlin and Java programming languages.

Installing kotlin