Error when diff path contains folders that does not exist

[alonseg]

'looks-same' saves the diff file using fs.createWriteStream(), passing that path as a parameter. Now, fs.createWriteStream() fails when the directory the path is pointing to doesn't exist - and that's the problem.

the shown error:

ENOENT: no such file or directory, open '...'

possible solutions:

1. using fsExtra.outputFile() which creates any missing directories. (best IMO)
2. Implementing the recursive mkdir ourselves

initially found here