Unhandled rejection TypeError: Cannot read property 'F_OK' of undefined

[irvingswiftj]

Since the last commit, I now have the following issue: Unhandled rejection TypeError: Cannot read property 'F_OK' of undefined

It seems that you can not rely on module 'fs' to have constants on all version on nodejs

[laggingreflex]

yup, seems so nodejs/node#8044

[mathisonian]

Ah okay, I was testing on node v6 as well. It looks like those are defined on the fs object itself in earlier versions.

@laggingreflex what do you think of changing

var constants = require('fs');

to

var fs = require('fs');
var constants = fs.constants || fs;

for compatibility?

[laggingreflex]

sounds good to me.

[Apollo2000]

Work's for me as well

[gegis]

It's failing for me as well!
Unhandled rejection TypeError: Cannot read property 'F_OK' of undefined at fileNotExists (/.../node_modules/command-exists/lib/command-exists.js:12:34) at commandExistsUnix (/.../node_modules/command-exists/lib/command-exists.js:45:5) at commandExists (/.../node_modules/command-exists/lib/command-exists.js:115:5)

[mathisonian]

Fixed in #10 and patch pushed to npm. I've added travis to the repo as well