PromisifyAll failing on fs.readFileAsync

[samccone]

If a file exists we get a fun error of

Possibly unhandled Error: true
  at maybeWrapAsError (/Users/sam/Desktop/repos/x/node_modules/bluebird/js/main/util.js:118:12)
  at PromiseResolver$_callback (/Users/sam/Desktop/repos/x/node_modules/bluebird/js/main/promise_resolver.js:54:50)
  at Object.cb [as oncomplete] (fs.js:168:19)

Reproduce with

Promise = require('bluebird')
fs = Promise.promisifyAll(require('fs'))
fs.existsAsync('/usr/share/dict/words').then(console.log.bind(console))

This is obviously due to the weird way fs.exists works.. just stinks :(
http://nodejs.org/api/fs.html#fs_fs_exists_path_callback

[petkaantonov]

Use .statAsync or anything else really, you should not use exists for anything, the docs even say that:

fs.exists() is an anachronism and exists only for historical reasons. There should almost never be a reason to use it in your own code.

[benjamingr]

Related nodejs/node#103

[samccone]

Yep what I ended up doing @petkaantonov just wanted to document it here.