semgrep-rule-variant-creator

Port Semgrep rules to new programming languages by generating language-specific variants with applicability analysis, independent rule and test directories, and test-driven validation to preserve language idioms.

Converting static analysis rules to multiple target languages is best handled through batch porting, which processes each language through an independent workflow cycle while preserving AST structures and language idioms.

Yes, you can port a single Semgrep rule to multiple languages in one operation, as the process supports batch porting and outputs separate rule and test directories for each target language.

Porting Semgrep rules to a new language requires test-driven validation, meaning the process creates independent test files alongside the language-specific rule variants to ensure the ported rules function correctly.

Applicability analysis for converting Semgrep rules evaluates whether the original rule logic applies to the target language, ensuring the generated variant respects the new language syntax before rule creation and validation.

Creating multilanguage variants of Semgrep rules involves a four-phase workflow per target language: applicability analysis, test creation, rule creation, and validation, outputting variants with updated metadata linking back to the original.