125 lines
3.4 KiB
JavaScript
Executable File
125 lines
3.4 KiB
JavaScript
Executable File
#!/usr/bin/env node
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import { createReadStream, createWriteStream, readFileSync } from 'fs'
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import { dirname, join } from 'path'
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import { fileURLToPath } from 'url'
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import { jsonrepair } from '../lib/esm/jsonrepair.js'
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const __filename = fileURLToPath(import.meta.url)
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const __dirname = dirname(__filename)
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function outputVersion() {
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const file = join(__dirname, '../package.json')
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const pkg = JSON.parse(String(readFileSync(file, 'utf-8')))
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console.log(pkg.version)
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}
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function outputHelp() {
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console.log('jsonrepair')
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console.log('https://github.com/josdejong/jsonrepair')
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console.log()
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console.log(
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'Repair invalid JSON documents. When a document could not be repaired, the output will be left unchanged.'
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)
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console.log()
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console.log('Usage:')
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console.log(' jsonrepair [filename] {OPTIONS}')
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console.log()
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console.log('Options:')
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console.log(' --version, -v Show application version')
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console.log(' --help, -h Show this message')
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console.log()
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console.log('Example usage:')
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console.log(
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' jsonrepair broken.json # Repair a file, output to console'
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)
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console.log(' jsonrepair broken.json > repaired.json # Repair a file, output to file')
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console.log(
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' jsonrepair broken.json --overwrite # Repair a file, replace the file itself'
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)
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console.log(
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' cat broken.json | jsonrepair # Repair data from an input stream'
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)
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console.log(
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' cat broken.json | jsonrepair > repaired.json # Repair data from an input stream, output to file'
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)
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console.log()
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}
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function streamToString(readableStream) {
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return new Promise((resolve, reject) => {
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let text = ''
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readableStream.on('data', (chunk) => {
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text += String(chunk)
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})
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readableStream.on('end', () => {
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readableStream.destroy()
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resolve(text)
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})
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readableStream.on('error', (err) => reject(err))
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})
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}
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function processArgs(args) {
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const options = {
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version: false,
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help: false,
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overwrite: false,
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inputFile: null
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}
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// we skip the first two args, since they contain node and the script path
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args.slice(2).forEach(function (arg) {
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switch (arg) {
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case '-v':
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case '--version':
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options.version = true
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break
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case '-h':
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case '--help':
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options.help = true
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break
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case '--overwrite':
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options.overwrite = true
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break
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default:
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if (options.inputFile == null) {
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options.inputFile = arg
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} else {
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throw new Error('Unexpected argument "' + arg + '"')
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}
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}
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})
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return options
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}
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const options = processArgs(process.argv)
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if (options.version) {
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outputVersion()
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} else if (options.help) {
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outputHelp()
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} else if (options.inputFile != null) {
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if (options.overwrite) {
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streamToString(createReadStream(options.inputFile))
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.then((text) => {
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const outputStream = createWriteStream(options.inputFile)
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outputStream.write(jsonrepair(text))
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})
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.catch((err) => process.stderr.write(err.toString()))
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} else {
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streamToString(createReadStream(options.inputFile))
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.then((text) => process.stdout.write(jsonrepair(text)))
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.catch((err) => process.stderr.write(err.toString()))
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}
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} else {
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streamToString(process.stdin)
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.then((text) => process.stdout.write(jsonrepair(text)))
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.catch((err) => process.stderr.write(err.toString()))
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}
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