#!/usr/bin/env node
/*!
* Module dependencies.
*/
var qrcode = require('../lib/main'),
path = require('path'),
fs = require('fs');
/*!
* Parse the process name
*/
var name = process.argv[1].replace(/^.*[\\\/]/, '').replace('.js', '');
/*!
* Parse the input
*/
if (process.stdin.isTTY) {
// called with input as argument, e.g.:
// ./qrcode-terminal.js "INPUT"
var input = process.argv[2];
handleInput(input);
} else {
// called with piped input, e.g.:
// echo "INPUT" | ./qrcode-terminal.js
var readline = require('readline');
var interface = readline.createInterface({
input: process.stdin,
output: process.stdout,
terminal: false
});
interface.on('line', function(line) {
handleInput(line);
});
}
/*!
* Process the input
*/
function handleInput(input) {
/*!
* Display help
*/
if (!input || input === '-h' || input === '--help') {
help();
process.exit();
}
/*!
* Display version
*/
if (input === '-v' || input === '--version') {
version();
process.exit();
}
/*!
* Render the QR Code
*/
qrcode.generate(input);
}
/*!
* Helper functions
*/
function help() {
console.log([
'',
'Usage: ' + name + ' ',
'',
'Options:',
' -h, --help output usage information',
' -v, --version output version number',
'',
'Examples:',
'',
' $ ' + name + ' hello',
' $ ' + name + ' "hello world"',
''
].join('\n'));
}
function version() {
var packagePath = path.join(__dirname, '..', 'package.json'),
packageJSON = JSON.parse(fs.readFileSync(packagePath), 'utf8');
console.log(packageJSON.version);
}