Feature request: full moodle backup

[cirrus3d]

Hi, could you add a full moodle backup feature? This could work like the drush ard command in moodle Thanks!

[Mihailoff]

:+1: for full backup and restore

[tmuras]

mdk: https://github.com/fmcorz/mdk has this functionality already, I'm not sure if we should duplicate it. On the other hand, it would be useful to have it every now & then, especially if we could try to make it a bit smarter - e.g. only take files required from moodle data (without caches, etc)...

[Mihailoff]

According to the documentation https://github.com/fmcorz/mdk#backup you have to use named instance in order to make a backup. It could be used without strict directory structure?

cd my_moodle
mdk backup

doesn't work