DEBUG_HIDE_DATE environment variable has no effect

[cleverlight]

Hi folks, I think DEBUG_HIDE_DATE isn't working. The README.md says:

you can set a few environment variables that will change the behavior of the debug logging

but it does not articulate what you can set them to. After reading the code:

if (/^(yes|on|true|enabled)$/i.test(val)) {
		val = true;
	} else if (/^(no|off|false|disabled)$/i.test(val)) {
		val = false;

I'm guessing they can be set to yes, on, true or enabled (positive) or no, off, false or disabled (negative).

I verified this assertion with DEBUG_COLORS:

set DEBUG=present:*,rcf:* && set DEBUG_COLORS=no && nodemon ./bin/www

which yields colourless output correctly.

I then tested DEBUG_HIDE_DATE using the same mechanism:

set DEBUG=present:*,rcf:* && set DEBUG_COLORS=no && set DEBUG_HIDE_DATE=yes && nodemon ./bin/www

which still showed the date, albeit in monochrome. I then tried other variants like disabled ,enabled and off, but the output was the same (with date).

Mon, 22 Jun 2020 12:01:12 GMT present:app microservice initialised

I did wonder if it was limited to my environment (Windows\Cygwin) so I rolled a .Dockerfile to push up a container with the following ENV vars:

ENV DEBUG="*"
ENV DEBUG_COLORS=false
ENV DEBUG_HIDE_DATE=true

I ran the container in a pod on my linux-based K8S cluster and the output was the same (with date). I also tried the enabled and disabled variants just in case I'd misinterpretted grammar. Any kind of clarification appreciated, or if it's deprecated perhaps it could be removed from the docs?

[Qix-]

Hide date from debug output (non-TTY).

As specified, it only works if you're piping output to something else (non-TTY mode).

I realize this is bizarre behavior; the next version is slated to fix this (whenever it happens). See #556 and #656.