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executable file 50 lines (44 sloc) 1.72 KB
#!/usr/bin/env node
// Disables eslint rules in a JavaScript file with next-line comments. This is
// useful when introducing a new rule that causes many failures. The comments
// can be fixed and removed at while updating the file later.
//
// Usage:
//
// eslint-ignore-errors app/assets/javascripts/something.js
const fs = require('fs')
const execFile = require('child_process').execFile
execFile('eslint', ['--format', 'json', process.argv[2]], (error, stdout) => {
for (const result of JSON.parse(stdout)) {
const filename = result.filePath
const jsLines = fs.readFileSync(filename, 'utf8').split('\n')
const offensesByLine = {}
let addedLines = 0
// Produces {47: ['github/no-d-none', 'github/no-blur'], 83: ['github/no-blur']}
for (const message of result.messages) {
if (offensesByLine[message.line]) {
offensesByLine[message.line].push(message.ruleId)
} else {
offensesByLine[message.line] = [message.ruleId]
}
}
for (const line of Object.keys(offensesByLine)) {
const lineIndex = line - 1 + addedLines
const previousLine = jsLines[lineIndex - 1]
const ruleIds = offensesByLine[line].join(', ')
if (isDisableComment(previousLine)) {
jsLines[lineIndex - 1] = previousLine.replace(/\s?\*\/$/, `, ${ruleIds} */`)
} else {
const leftPad = ' '.repeat(jsLines[lineIndex].match(/^\s*/g)[0].length)
jsLines.splice(lineIndex, 0, `${leftPad}/* eslint-disable-next-line ${ruleIds} */`)
}
addedLines += 1
}
if (result.messages.length !== 0) {
fs.writeFileSync(filename, jsLines.join('\n'), 'utf8')
}
}
})
function isDisableComment(line) {
return line.match(/\/\* eslint-disable-next-line .+\*\//)
}