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Current Path: /lib/node_modules/npm/node_modules/gauge

lib / node_modules / npm / node_modules / gauge /

ðŸ“ ..
ðŸ“„ CHANGELOG.md(6.23 KB)
ðŸ“„ LICENSE(751 B)
ðŸ“„ README.md(14.72 KB)
ðŸ“„ base-theme.js(395 B)
ðŸ“„ error.js(616 B)
ðŸ“„ has-color.js(292 B)
ðŸ“„ index.js(6.83 KB)
ðŸ“ node_modules
ðŸ“„ package.json(2.13 KB)
ðŸ“„ plumbing.js(1.24 KB)
ðŸ“„ process.js(89 B)
ðŸ“„ progress-bar.js(998 B)
ðŸ“„ render-template.js(5.6 KB)
ðŸ“„ set-immediate.js(139 B)
ðŸ“„ set-interval.js(93 B)
ðŸ“„ spin.js(105 B)
ðŸ“„ template-item.js(1.86 KB)
ðŸ“„ theme-set.js(3.61 KB)
ðŸ“„ themes.js(1.51 KB)
ðŸ“„ wide-truncate.js(828 B)

Editing: index.js

'use strict'
var Plumbing = require('./plumbing.js')
var hasUnicode = require('has-unicode')
var hasColor = require('./has-color.js')
var onExit = require('signal-exit')
var defaultThemes = require('./themes')
var setInterval = require('./set-interval.js')
var process = require('./process.js')
var setImmediate = require('./set-immediate')

module.exports = Gauge

function callWith (obj, method) {
  return function () {
    return method.call(obj)
  }
}

function Gauge (arg1, arg2) {
  var options, writeTo
  if (arg1 && arg1.write) {
    writeTo = arg1
    options = arg2 || {}
  } else if (arg2 && arg2.write) {
    writeTo = arg2
    options = arg1 || {}
  } else {
    writeTo = process.stderr
    options = arg1 || arg2 || {}
  }

this._status = {
    spun: 0,
    section: '',
    subsection: ''
  }
  this._paused = false // are we paused for back pressure?
  this._disabled = true // are all progress bar updates disabled?
  this._showing = false // do we WANT the progress bar on screen
  this._onScreen = false // IS the progress bar on screen
  this._needsRedraw = false // should we print something at next tick?
  this._hideCursor = options.hideCursor == null ? true : options.hideCursor
  this._fixedFramerate = options.fixedFramerate == null
    ? !(/^v0\.8\./.test(process.version))
    : options.fixedFramerate
  this._lastUpdateAt = null
  this._updateInterval = options.updateInterval == null ? 50 : options.updateInterval

this._themes = options.themes || defaultThemes
  this._theme = options.theme
  var theme = this._computeTheme(options.theme)
  var template = options.template || [
    {type: 'progressbar', length: 20},
    {type: 'activityIndicator', kerning: 1, length: 1},
    {type: 'section', kerning: 1, default: ''},
    {type: 'subsection', kerning: 1, default: ''}
  ]
  this.setWriteTo(writeTo, options.tty)
  var PlumbingClass = options.Plumbing || Plumbing
  this._gauge = new PlumbingClass(theme, template, this.getWidth())

this._$$doRedraw = callWith(this, this._doRedraw)
  this._$$handleSizeChange = callWith(this, this._handleSizeChange)

this._cleanupOnExit = options.cleanupOnExit == null || options.cleanupOnExit
  this._removeOnExit = null

if (options.enabled || (options.enabled == null && this._tty && this._tty.isTTY)) {
    this.enable()
  } else {
    this.disable()
  }
}
Gauge.prototype = {}

Gauge.prototype.isEnabled = function () {
  return !this._disabled
}

Gauge.prototype.setTemplate = function (template) {
  this._gauge.setTemplate(template)
  if (this._showing) this._requestRedraw()
}

Gauge.prototype._computeTheme = function (theme) {
  if (!theme) theme = {}
  if (typeof theme === 'string') {
    theme = this._themes.getTheme(theme)
  } else if (theme && (Object.keys(theme).length === 0 || theme.hasUnicode != null || theme.hasColor != null)) {
    var useUnicode = theme.hasUnicode == null ? hasUnicode() : theme.hasUnicode
    var useColor = theme.hasColor == null ? hasColor : theme.hasColor
    theme = this._themes.getDefault({hasUnicode: useUnicode, hasColor: useColor, platform: theme.platform})
  }
  return theme
}

Gauge.prototype.setThemeset = function (themes) {
  this._themes = themes
  this.setTheme(this._theme)
}

Gauge.prototype.setTheme = function (theme) {
  this._gauge.setTheme(this._computeTheme(theme))
  if (this._showing) this._requestRedraw()
  this._theme = theme
}

Gauge.prototype._requestRedraw = function () {
  this._needsRedraw = true
  if (!this._fixedFramerate) this._doRedraw()
}

Gauge.prototype.getWidth = function () {
  return ((this._tty && this._tty.columns) || 80) - 1
}

Gauge.prototype.setWriteTo = function (writeTo, tty) {
  var enabled = !this._disabled
  if (enabled) this.disable()
  this._writeTo = writeTo
  this._tty = tty ||
    (writeTo === process.stderr && process.stdout.isTTY && process.stdout) ||
    (writeTo.isTTY && writeTo) ||
    this._tty
  if (this._gauge) this._gauge.setWidth(this.getWidth())
  if (enabled) this.enable()
}

Gauge.prototype.enable = function () {
  if (!this._disabled) return
  this._disabled = false
  if (this._tty) this._enableEvents()
  if (this._showing) this.show()
}

Gauge.prototype.disable = function () {
  if (this._disabled) return
  if (this._showing) {
    this._lastUpdateAt = null
    this._showing = false
    this._doRedraw()
    this._showing = true
  }
  this._disabled = true
  if (this._tty) this._disableEvents()
}

Gauge.prototype._enableEvents = function () {
  if (this._cleanupOnExit) {
    this._removeOnExit = onExit(callWith(this, this.disable))
  }
  this._tty.on('resize', this._$$handleSizeChange)
  if (this._fixedFramerate) {
    this.redrawTracker = setInterval(this._$$doRedraw, this._updateInterval)
    if (this.redrawTracker.unref) this.redrawTracker.unref()
  }
}

Gauge.prototype._disableEvents = function () {
  this._tty.removeListener('resize', this._$$handleSizeChange)
  if (this._fixedFramerate) clearInterval(this.redrawTracker)
  if (this._removeOnExit) this._removeOnExit()
}

Gauge.prototype.hide = function (cb) {
  if (this._disabled) return cb && process.nextTick(cb)
  if (!this._showing) return cb && process.nextTick(cb)
  this._showing = false
  this._doRedraw()
  cb && setImmediate(cb)
}

Gauge.prototype.show = function (section, completed) {
  this._showing = true
  if (typeof section === 'string') {
    this._status.section = section
  } else if (typeof section === 'object') {
    var sectionKeys = Object.keys(section)
    for (var ii = 0; ii < sectionKeys.length; ++ii) {
      var key = sectionKeys[ii]
      this._status[key] = section[key]
    }
  }
  if (completed != null) this._status.completed = completed
  if (this._disabled) return
  this._requestRedraw()
}

Gauge.prototype.pulse = function (subsection) {
  this._status.subsection = subsection || ''
  this._status.spun ++
  if (this._disabled) return
  if (!this._showing) return
  this._requestRedraw()
}

Gauge.prototype._handleSizeChange = function () {
  this._gauge.setWidth(this._tty.columns - 1)
  this._requestRedraw()
}

Gauge.prototype._doRedraw = function () {
  if (this._disabled || this._paused) return
  if (!this._fixedFramerate) {
    var now = Date.now()
    if (this._lastUpdateAt && now - this._lastUpdateAt < this._updateInterval) return
    this._lastUpdateAt = now
  }
  if (!this._showing && this._onScreen) {
    this._onScreen = false
    var result = this._gauge.hide()
    if (this._hideCursor) {
      result += this._gauge.showCursor()
    }
    return this._writeTo.write(result)
  }
  if (!this._showing && !this._onScreen) return
  if (this._showing && !this._onScreen) {
    this._onScreen = true
    this._needsRedraw = true
    if (this._hideCursor) {
      this._writeTo.write(this._gauge.hideCursor())
    }
  }
  if (!this._needsRedraw) return
  if (!this._writeTo.write(this._gauge.show(this._status))) {
    this._paused = true
    this._writeTo.on('drain', callWith(this, function () {
      this._paused = false
      this._doRedraw()
    }))
  }
}

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Editing: index.js

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