os.mknod() requires superuser privileges on other platforms

[maikthulhu]

dwains-lovelace-dashboard/custom_components/dwains_dashboard/process_yaml.py

Line 280 in b3e1bae

os.mknod(path)

Good morning! I'm running HASS in a FreeBSD jail (using TrueNAS) and ran into a minor issue when performing initial config and getting set up.

The error I received is:
OSError: [Errno 22] Invalid argument

Unfortunately I didn't save the entire stack trace. I referenced process_yaml.py:280 (linked above) which points to os.mknod(path). It appears this call requires superuser privileges which prevents DD from loading. An appropriate user-level call is below. I can do a PR if you like but since it was just one line I figured it would take less time this way.

I replaced line 280 with:
open(path, 'w').close()

This creates the (.installed) file if it doesn't exist and then closes the file handle. Nice and easy, though slightly less clean.

References:
https://stackoverflow.com/questions/32115715/os-mknod-fails-on-macos

[dwainscheeren]

Thanks, patched in 2.0.4.