moai-tool-ast-grep

Use ast-grep (sg) to apply pattern-based code transformations and codemods at scale. By running sg with a rewrite rule like 'var $NAME = $VALUE' to 'const $NAME = $VALUE', you can refactor legacy syntax across large repositories with minimal manual edits.

Structural code search finds code patterns by matching abstract syntax trees rather than plain text. Ast-grep (sg) performs language-agnostic pattern matching, allowing you to identify and transform code structures across multiple languages with relational rule constraints like inside, has, follows, and precedes.

Yes, you can run security scanning and quality checks across repositories using sg scan with a defined sgconfig.yml. It detects risky code patterns and deprecated APIs language-agnostically by applying structural pattern matching rules configured in your modules.

You can find console.log statements by running an sg pattern search like 'console.log($$$ARGS)' with the JavaScript language flag on your source directory. This structural search identifies matching AST nodes across the codebase for targeted removal or refactoring.

Yes, ast-grep supports codemod transformations using fix blocks defined in rule files. This allows you to migrate legacy codebases to modern syntax or new APIs across multiple services structurally, ensuring consistent and automated code refactoring.