GritQL is an AST-based code transformation engine and structural search tool. It uses a declarative query language to identify and rewrite source code patterns across multiple programming languages by matching abstract syntax tree nodes rather than literal text.
The system functions as an automated refactoring framework for large-scale migrations and API updates. It distinguishes itself by utilizing sequential transformation pipelines and reusable blueprints that can be synced between local environments and remote repositories.
The tool covers a broad range of capabilities including static analysis linting for continuous integration, multi-file analysis, and the ability to extend query logic via JavaScript predicates. It supports complex code manipulation through metavariable binding, recursive tree traversal, and the automated generation of new files.
Users can define and test rewrite patterns using Markdown documents or YAML files, which can be bundled with test cases to verify transformation accuracy.
