Compare ESLint configs

Usage

npm install -g compare-eslint-configs
compare-eslint-configs compare .eslintrc new.eslintrc

Or simply:

npx compare-eslint-configs compare .eslintrc new.eslintrc

Commands

Found by running compare-eslint-configs --help

• compare - compares the provided eslint config file(s)
• diff - prints what's changed between the second and the first file
• summary - prints a summary of the specified configs

Options

Found by running compare-eslint-configs <command> --help, eg: compare-eslint-configs compare --help

Example

CLI output

npx compare-eslint-configs compare new.eslintrc -t cli.js

Markdown output

npx compare-eslint-configs compare new.eslintrc -t cli.js -m

Only active in some:

• new.eslintrc
  • for-direction

Mixed severities:

• func-style
  • warn: .eslintrc
  • error: new.eslintrc
• unicorn/prefer-event-target
  • warn: .eslintrc
  • error: new.eslintrc

Mixed configs where otherwise okay:

• no-console
• new.eslintrc:

  [{"allow":["warn","error"]}]

See also

• @voxpelli/eslint-formatter-summary – can summarize errors/warnings by ESLint rule + print that list as markdown