df4e06385a
Initial setup of project dependencies including axios, express, dotenv, and other supporting packages. Added configuration files and documentation for project setup and usage.
70 lines
1.1 KiB
JavaScript
70 lines
1.1 KiB
JavaScript
/*!
|
|
* unpipe
|
|
* Copyright(c) 2015 Douglas Christopher Wilson
|
|
* MIT Licensed
|
|
*/
|
|
|
|
'use strict'
|
|
|
|
/**
|
|
* Module exports.
|
|
* @public
|
|
*/
|
|
|
|
module.exports = unpipe
|
|
|
|
/**
|
|
* Determine if there are Node.js pipe-like data listeners.
|
|
* @private
|
|
*/
|
|
|
|
function hasPipeDataListeners(stream) {
|
|
var listeners = stream.listeners('data')
|
|
|
|
for (var i = 0; i < listeners.length; i++) {
|
|
if (listeners[i].name === 'ondata') {
|
|
return true
|
|
}
|
|
}
|
|
|
|
return false
|
|
}
|
|
|
|
/**
|
|
* Unpipe a stream from all destinations.
|
|
*
|
|
* @param {object} stream
|
|
* @public
|
|
*/
|
|
|
|
function unpipe(stream) {
|
|
if (!stream) {
|
|
throw new TypeError('argument stream is required')
|
|
}
|
|
|
|
if (typeof stream.unpipe === 'function') {
|
|
// new-style
|
|
stream.unpipe()
|
|
return
|
|
}
|
|
|
|
// Node.js 0.8 hack
|
|
if (!hasPipeDataListeners(stream)) {
|
|
return
|
|
}
|
|
|
|
var listener
|
|
var listeners = stream.listeners('close')
|
|
|
|
for (var i = 0; i < listeners.length; i++) {
|
|
listener = listeners[i]
|
|
|
|
if (listener.name !== 'cleanup' && listener.name !== 'onclose') {
|
|
continue
|
|
}
|
|
|
|
// invoke the listener
|
|
listener.call(stream)
|
|
}
|
|
}
|