160 lines
3.6 KiB
JavaScript
160 lines
3.6 KiB
JavaScript
#!/usr/bin/env node
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var yargs = require('yargs')
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var qr = require('../lib')
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function save (file, text, options) {
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qr.toFile(file, text, options, function (err, data) {
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if (err) {
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console.error('Error:', err.message)
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process.exit(1)
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}
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console.log('saved qrcode to: ' + file + '\n')
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})
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}
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function print (text, options) {
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options.type = 'terminal'
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qr.toString(text, options, function (err, text) {
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if (err) {
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console.error('Error:', err.message)
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process.exit(1)
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}
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console.log(text)
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})
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}
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function parseOptions (args) {
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return {
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version: args.qversion,
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errorCorrectionLevel: args.error,
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type: args.type,
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small: !!args.small,
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inverse: !!args.inverse,
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maskPattern: args.mask,
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margin: args.qzone,
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width: args.width,
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scale: args.scale,
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color: {
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light: args.lightcolor,
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dark: args.darkcolor
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}
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}
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}
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function processInputs (text, opts) {
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if (!text.length) {
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yargs.showHelp()
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process.exit(1)
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}
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if (opts.output) {
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save(opts.output, text, parseOptions(opts))
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} else {
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print(text, parseOptions(opts))
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}
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}
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var argv = yargs
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.detectLocale(false)
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.usage('Usage: $0 [options] <input string>')
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.option('v', {
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alias: 'qversion',
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description: 'QR Code symbol version (1 - 40)',
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group: 'QR Code options:',
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type: 'number'
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})
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.option('e', {
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alias: 'error',
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description: 'Error correction level',
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choices: ['L', 'M', 'Q', 'H'],
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group: 'QR Code options:'
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})
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.option('m', {
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alias: 'mask',
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description: 'Mask pattern (0 - 7)',
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group: 'QR Code options:',
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type: 'number'
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})
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.option('t', {
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alias: 'type',
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description: 'Output type',
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choices: ['png', 'svg', 'utf8'],
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implies: 'output',
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group: 'Renderer options:'
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})
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.option('i', {
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alias: 'inverse',
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type: 'boolean',
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description: 'Invert colors',
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group: 'Renderer options:'
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})
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.option('w', {
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alias: 'width',
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description: 'Image width (px)',
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conflicts: 'scale',
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group: 'Renderer options:',
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type: 'number'
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})
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.option('s', {
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alias: 'scale',
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description: 'Scale factor',
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conflicts: 'width',
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group: 'Renderer options:',
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type: 'number'
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})
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.option('q', {
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alias: 'qzone',
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description: 'Quiet zone size',
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group: 'Renderer options:',
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type: 'number'
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})
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.option('l', {
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alias: 'lightcolor',
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description: 'Light RGBA hex color',
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group: 'Renderer options:'
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})
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.option('d', {
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alias: 'darkcolor',
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description: 'Dark RGBA hex color',
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group: 'Renderer options:'
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})
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.option('small', {
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type: 'boolean',
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description: 'Output smaller QR code to terminal',
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conflicts: 'type',
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group: 'Renderer options:'
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})
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.option('o', {
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alias: 'output',
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description: 'Output file'
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})
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.help('h')
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.alias('h', 'help')
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.version()
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.example('$0 "some text"', 'Draw in terminal window')
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.example('$0 -o out.png "some text"', 'Save as png image')
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.example('$0 -d F00 -o out.png "some text"', 'Use red as foreground color')
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.parserConfiguration({'parse-numbers': false})
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.argv
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if (process.stdin.isTTY) {
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processInputs(argv._.join(' '), argv)
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} else {
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var text = ''
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process.stdin.setEncoding('utf8')
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process.stdin.on('readable', function () {
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var chunk = process.stdin.read()
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if (chunk !== null) {
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text += chunk
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}
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})
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process.stdin.on('end', function () {
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// this process can be run as a command outside of a tty so if there was no
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// data on stdin read from argv
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processInputs(text.length?text:argv._.join(' '), argv)
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})
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}
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