The mkdirp module doesn't handle modes in the best way

[phated]

• If a directory exists, the mode isn't updated - ref https://github.com/substack/node-mkdirp/issues/80
  • This could be solved by implementing our own mkdirp logic (in the vein of implementing our own writeFile)
• On OSX, the fs.mkdir call doesn't seem to set sticky, sgid or suid bits but fs.chmod does - ref https://github.com/gulpjs/vinyl-fs/blob/master/test/dest-modes.js#L339-L340
  • This would be solved by solving the first one because it would use chmod after the mkdir