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153 lines
3.5 KiB
JavaScript
153 lines
3.5 KiB
JavaScript
#!/usr/bin/env node
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const fs = require('fs')
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const path = require('path')
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const pkg = require('../package.json')
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const JSON5 = require('./')
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const argv = parseArgs()
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if (argv.version) {
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version()
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} else if (argv.help) {
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usage()
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} else {
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const inFilename = argv.defaults[0]
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let readStream
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if (inFilename) {
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readStream = fs.createReadStream(inFilename)
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} else {
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readStream = process.stdin
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}
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let json5 = ''
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readStream.on('data', data => {
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json5 += data
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})
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readStream.on('end', () => {
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let space
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if (argv.space === 't' || argv.space === 'tab') {
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space = '\t'
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} else {
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space = Number(argv.space)
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}
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let value
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try {
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value = JSON5.parse(json5)
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if (!argv.validate) {
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const json = JSON.stringify(value, null, space)
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let writeStream
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// --convert is for backward compatibility with v0.5.1. If
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// specified with <file> and not --out-file, then a file with
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// the same name but with a .json extension will be written.
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if (argv.convert && inFilename && !argv.outFile) {
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const parsedFilename = path.parse(inFilename)
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const outFilename = path.format(
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Object.assign(
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parsedFilename,
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{base: path.basename(parsedFilename.base, parsedFilename.ext) + '.json'}
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)
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)
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writeStream = fs.createWriteStream(outFilename)
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} else if (argv.outFile) {
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writeStream = fs.createWriteStream(argv.outFile)
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} else {
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writeStream = process.stdout
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}
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writeStream.write(json)
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}
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} catch (err) {
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console.error(err.message)
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process.exit(1)
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}
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})
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}
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function parseArgs () {
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let convert
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let space
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let validate
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let outFile
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let version
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let help
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const defaults = []
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const args = process.argv.slice(2)
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for (let i = 0; i < args.length; i++) {
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const arg = args[i]
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switch (arg) {
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case '--convert':
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case '-c':
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convert = true
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break
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case '--space':
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case '-s':
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space = args[++i]
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break
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case '--validate':
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case '-v':
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validate = true
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break
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case '--out-file':
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case '-o':
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outFile = args[++i]
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break
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case '--version':
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case '-V':
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version = true
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break
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case '--help':
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case '-h':
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help = true
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break
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default:
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defaults.push(arg)
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break
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}
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}
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return {
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convert,
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space,
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validate,
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outFile,
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version,
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help,
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defaults,
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}
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}
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function version () {
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console.log(pkg.version)
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}
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function usage () {
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console.log(
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`
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Usage: json5 [options] <file>
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If <file> is not provided, then STDIN is used.
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Options:
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-s, --space The number of spaces to indent or 't' for tabs
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-o, --out-file [file] Output to the specified file, otherwise STDOUT
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-v, --validate Validate JSON5 but do not output JSON
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-V, --version Output the version number
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-h, --help Output usage information`
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)
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}
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