ast-grep

Fast code searching, linting, and rewriting tool with pattern matching

brewmacoslinux

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Code searching, linting, rewriting

sg

Search for function calls matching a pattern$ sg --pattern 'console.log($$$)' --lang javascript

Find and replace code patterns across files$ sg --pattern 'var $A = $B' --rewrite 'let $A = $B' --lang javascript

Lint code by finding deprecated function usage$ sg --pattern 'setTimeout($$$, 0)' --lang javascript src/