CLAUDE.md

single-variable-mapper

GitHub Action that maps a key to a value using regex pattern matching. Used in CI/CD workflows to remap variables (e.g., branch names to environment names).

Project Structure

• src/main.ts - Core logic: input validation, regex matching, output export
• src/index.ts - Entrypoint (calls run())
• action.yml - GitHub Action definition (inputs/outputs)
• __tests__/main.test.ts - Jest tests with mocked @actions/core
• dist/ - Compiled bundle (generated by ncc, committed to repo)

Commands

• npm test - Run tests (Jest)
• npm run lint - Run all linters (eslint + markdownlint + yamllint)
• npm run format:write - Format with Prettier
• npm run package - Bundle with ncc to dist/
• npm run all - Format + lint + test + coverage + package

Ignore

Ignore generated/compiled code when exploring:

• dist/ - ncc bundle output
• node_modules/
• coverage/
• badges/