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