48 lines
1.0 KiB
JavaScript
48 lines
1.0 KiB
JavaScript
'use strict';
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const report = require('../../utils/report');
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const ruleMessages = require('../../utils/ruleMessages');
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const validateOptions = require('../../utils/validateOptions');
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const ruleName = 'no-empty-first-line';
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const noEmptyFirstLineTest = /^\s*[\r\n]/;
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const messages = ruleMessages(ruleName, {
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rejected: 'Unexpected empty line',
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});
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function rule(actual, _, context) {
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return (root, result) => {
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const validOptions = validateOptions(result, ruleName, { actual });
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if (!validOptions || root.source.inline || root.source.lang === 'object-literal') {
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return;
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}
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const rootString = context.fix ? root.toString() : root.source.input.css;
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if (!rootString.trim()) {
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return;
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}
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if (noEmptyFirstLineTest.test(rootString)) {
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if (context.fix) {
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root.nodes[0].raws.before = root.first.raws.before.trimLeft();
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return;
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}
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report({
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message: messages.rejected,
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node: root,
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result,
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ruleName,
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});
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}
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};
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}
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rule.ruleName = ruleName;
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rule.messages = messages;
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module.exports = rule;
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