GO Rewrite

[jaredpetersen]

I've decided to rewrite the application in GO and rebrand to raspilive.

This was motivated by a couple of limitations:

• Configuration with CLI arguments is tedious and we ran out of one-character arguments
• We're currently very locked in to the idea of transforming a video stream into static files and serving them. Ideally, we should support other streaming formats like RTMP which does not use the disk.
• Node.js is a requirement for using the application. We could probably generate binaries but at the end of the day it's still going to be bloated. JavaScript just isn't the right tool for the job and was only originally chosen because that's what I was most familiar.
• We don't have any tests and the application is not testable

This rewrite seeks to address these issues.

I've made pretty good progress so far on the golang-rewrite branch.

This issue is mainly to track progress on that effort.

Stuff that needs to be done:

• [x] Basic existing functionality working
• [x] Take another look at file management (should we delete things and create directories?)
• [x] Set up a logging library (probably with zerolog)
• [x] Finalize configuration strategy (probably using environment variables instead of arguments)

Stretch goals:

• [ ] Log Ffmpeg stats (involves parsing)
• [x] Access log for apps that use the static server
• [ ] RTMP support

[jaredpetersen]

RTMP support will go into the next release. I'm trying to limit the amount of change going on at one time.

The FFmpeg logs would be pretty much useful for debugging only and would tend to clutter up the logs otherwise. Going to leave that out of the release as well.