indent.ts

import { createRule } from '../utils';
import { defineVisitor } from './indent-helpers';

export default createRule('indent', {
	meta: {
		docs: {
			description: 'enforce consistent indentation',
			category: 'Stylistic Issues',
			recommended: false,
			conflictWithPrettier: true
		},
		fixable: 'whitespace',
		schema: [
			{
				type: 'object',
				properties: {
					indent: {
						anyOf: [{ type: 'integer', minimum: 1 }, { enum: ['tab'] }]
					},
					indentScript: { type: 'boolean' },
					switchCase: { type: 'integer', minimum: 0 },
					alignAttributesVertically: { type: 'boolean' },
					ignoredNodes: {
						type: 'array',
						items: {
							allOf: [
								{ type: 'string' },
								{ not: { type: 'string', pattern: ':exit$' } },
								{ not: { type: 'string', pattern: '^\\s*$' } }
							]
						},
						uniqueItems: true,
						additionalItems: false
					}
				},
				additionalProperties: false
			}
		],
		messages: {
			unexpectedChar: 'Expected {{expected}} character, but found {{actual}} character.',
			unexpectedIndentation:
				'Expected indentation of {{expectedIndent}} {{expectedUnit}}{{expectedIndentPlural}} but found {{actualIndent}} {{actualUnit}}{{actualIndentPlural}}.'
		},
		type: 'layout' // "problem",
	},
	create(context) {
		return defineVisitor(context, {});
	}
});