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Automated mass refactoring of source code.

OpenRewrite is an open-source automated refactoring ecosystem designed to eliminate technical debt in software repositories. It offers an auto-refactoring engine that executes prepackaged recipes for framework migrations, security fixes, and stylistic consistency. The engine leverages Abstract Syntax Trees (AST) to understand and transform code, ensuring precise and repeatable refactoring. It includes build tool plugins for Gradle and Maven, allowing developers to run recipes on individual repositories. Recipes can be customized for specific codebases. Moderne maintains OpenRewrite, with the refactoring engine and recipes remaining open source. OpenRewrite supports languages such as Java, Kotlin, Groovy, YAML, and XML. Moderne also offers a commercial platform to run OpenRewrite recipes efficiently on large codebases and multiple repositories, streamlining recipe customization and enabling large-scale impact analyses.
OpenRewrite is an open-source automated refactoring ecosystem designed to eliminate technical debt in software repositories.
Explore all tools that specialize in automate code refactoring. This domain focus ensures OpenRewrite delivers optimized results for this specific requirement.
Explore all tools that specialize in framework migration. This domain focus ensures OpenRewrite delivers optimized results for this specific requirement.
OpenRewrite can automatically update dependencies to the latest versions by identifying outdated dependencies and generating the necessary code changes.
Provides pre-built recipes to migrate codebases from older versions of frameworks (e.g., Spring, Java EE) to newer versions, handling API changes and configuration updates.
Allows developers to create custom refactoring recipes using Java or YAML, enabling them to address specific code style issues or apply custom business logic.
Moderne Platform extends OpenRewrite to run refactoring recipes across multiple repositories simultaneously, enabling large-scale code changes across an entire organization.
OpenRewrite recipes can automatically identify and fix common security vulnerabilities, such as SQL injection, cross-site scripting (XSS), and insecure deserialization.
Provides recipes to automatically enforce coding style guidelines, such as indentation, naming conventions, and code formatting.
1. Read the quickstart guide on the OpenRewrite website.
2. Install the OpenRewrite plugin for your build tool (Gradle or Maven).
3. Select a pre-built recipe from the OpenRewrite recipe catalog.
4. Configure the recipe in your build file (e.g., pom.xml or build.gradle).
5. Run the recipe using the build tool command (e.g., ./gradlew rewriteRun or mvn rewrite:run).
6. Review the changes and commit them to your repository.
7. Customize recipes using YAML configuration or create your own recipes using Java.
All Set
Ready to go
Verified feedback from other users.
"Users praise OpenRewrite for its ability to automate complex refactoring tasks and reduce technical debt, but some find the initial setup challenging."
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