fs write stream atomic 源码

fs-write-stream-atomic // test/rename-eperm.js 'use strict' var fs = require ( 'graceful-fs' ) var path = require ( 'path' ) var test = require ( 'tap' ) . test var rimraf = require ( 'rimraf' ) var writeStream = require ( '../index.js' ) var target = path . resolve ( __dirname , 'test-rename-eperm