feat(rule-whitelist): Add cli option to specify a whitelist of ESLint rules.

Author: Bryan Smith

README.md

@@ -37,7 +37,23 @@ Be sure to re-run any code formatting tools you use before committing!
 
 ## Options
 
-If you'd like a message other than, `TODO: Fix this the next time the file is edited.`, you can specify this with the `--message` commandline flag.
+**--message**: Sets the comment to add above eslint-disable-next-line comments.
+
+**--rules**: Comma-separated list of ESLint rule IDs to disable. When specified, violations of rules not in this set will be left in place.
+
+## Examples
+
+Suppress all rule violations in the `index.js` file, using a custom comment:
+
+```bash
+npx suppress-eslint-errors ./index.js --message="TODO: Issue #123"
+```
+
+Suppress violations of the `eqeqeq` and `@typescript-eslint/no-explicit-any` rules in .ts and .tsx files in the `src` directory:
+
+```bash
+npx suppress-eslint-errors ./src --extensions=ts,tsx --parser=tsx --rules=eqeqeq,@typescript-eslint/no-explicit-any
+```
 
 ## Is it perfect?
 

transforms/__tests__/suppress-eslint-errors.js

@@ -133,6 +133,22 @@ test('supports alternative messages in jsx', () => {
 }`);
 });
 
+test('supports rule whitelist in javascript', () => {
+	const program = `export function foo(a, b) {
+  return a == b;
+  console.log('unreachable');
+}
+`;
+
+	expect(modifySource(program, { rules: 'no-unreachable' })).toBe(`export function foo(a, b) {
+  return a == b;
+  // TODO: Fix this the next time the file is edited.
+  // eslint-disable-next-line no-unreachable
+  console.log('unreachable');
+}
+`);
+});
+
 const defaultPath = path.resolve(__dirname, 'examples', 'index.js');
 function modifySource(source, options) {
 	return codeMod(

transforms/suppress-eslint-errors.js

@@ -31,7 +31,14 @@ module.exports = function codeMod(file, api, options) {
 			? options.message
 			: 'TODO: Fix this the next time the file is edited.';
 
+	const ruleIdWhitelist = (options.rules || '').split(',').filter(x => x);
+	const ruleIdWhitelistSet = ruleIdWhitelist.length ? new Set(ruleIdWhitelist) : null;
+
 	for (const { targetLine, ruleId } of targets) {
+		if (ruleIdWhitelistSet && !ruleIdWhitelistSet.has(ruleId)) {
+			continue;
+		}
+
 		const firstPathOnLine = result
 			.find(
 				'Node',