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node_modules/gauge/progress-bar.js 998 Bytes
aaac7fed   liuqimichale   add
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  'use strict'
  var validate = require('aproba')
  var renderTemplate = require('./render-template.js')
  var wideTruncate = require('./wide-truncate')
  var stringWidth = require('string-width')
  
  module.exports = function (theme, width, completed) {
    validate('ONN', [theme, width, completed])
    if (completed < 0) completed = 0
    if (completed > 1) completed = 1
    if (width <= 0) return ''
    var sofar = Math.round(width * completed)
    var rest = width - sofar
    var template = [
      {type: 'complete', value: repeat(theme.complete, sofar), length: sofar},
      {type: 'remaining', value: repeat(theme.remaining, rest), length: rest}
    ]
    return renderTemplate(width, template, theme)
  }
  
  // lodash's way of repeating
  function repeat (string, width) {
    var result = ''
    var n = width
    do {
      if (n % 2) {
        result += string
      }
      n = Math.floor(n / 2)
      /*eslint no-self-assign: 0*/
      string += string
    } while (n && stringWidth(result) < width)
  
    return wideTruncate(result, width)
  }