wallet-export

#!/usr/bin/env node

var program = require('commander');
var qr = require('qr-image');
var fs = require('fs');
var _ = require('lodash');

var utils = require('./cli-utils');
program = utils.configureCommander(program);

program
  .option('-n, --nosign', 'export wallet credentials without transaction signing keys (extended private key)')
  .option('-q, --qr', 'export a QR code')
  .option('-e, --exportpassword <password>', 'a password to encrypt the exported data')
  .option('-o, --output <filename>', 'output file');

program
  .parse(process.argv);

var args = program.args;

utils.getClient(program, { doNotComplete: true, mustExist: true }, function (client) {
  var x;
  try {
    x = client.export({
      compressed: !!program.qr,
      noSign: !!program.nosign,
      password: program.exportpassword,
    });
  } catch (ex) {
    utils.die(ex);
  }

  var access = !!program.nosign ? 'without signing capability' : 'with signing capability';
  if (program.qr) {
    var filename = program.file + '.svg';
    var qr_svg = qr.image(x, {
      type: 'svg'
    });
    qr_svg.pipe(fs.createWriteStream(filename));
    console.log('Wallet data: exported to %s %s.', filename, access);
  } else {
    if (program.output) {
      fs.writeFileSync(program.output, x, { encoding: 'utf8' });
      console.log('Wallet data saved at %s %s.', program.output, access);
    } else {
      console.log('Wallet data (%s).\n%s', access, x);
    }
  }
});