dool-build/lib/progress.js

d-band tool & dev tool

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _color = require('./color');

var _webpack = require('webpack');

exports.default = function () {
  var total = 20;
  var stream = process.stderr;
  var fmt = `${(0, _color.green)('[:bar]')} :percent ${(0, _color.cyan)(':msg')}`;

  return new _webpack.ProgressPlugin(function (percent, msg) {
    if (!stream.isTTY) return;

    var beforeLen = Math.floor(percent * total);
    var afterLen = total - beforeLen;
    var before = Array(beforeLen).join('=');
    var after = Array(afterLen).join(' ');

    var str = fmt.replace(':bar', before + after).replace(':percent', (percent * 99).toFixed(0) + '%').replace(':msg', msg.substring(0, stream.columns - 27));

    stream.write('\x1b[1G' + str);
    stream.clearLine(1);

    if (percent === 1) {
      stream.clearLine();
      stream.cursorTo(0);
    }
  });
};

module.exports = exports['default'];