I have this on my TODO list, I'll try to find time in the weekend.

any news on your side @erik-wramner ? @fbartels have you had time?

That's correct @fbartels. In the end, it's only a refactoring:) The only "major" changes are those where I substituted code, for example

array=$(cat $THIS | tr ":" "\n")

which is ugly and not robust became

declare -a ARRAY
IFS=':'
read -r -a ARRAY < <(cat "${THIS}")

which is more verbose, but read was made for exactly this case, therefore being robust.

There were similar changes here and there. The majority of line changes came from brace substitutions and "" around variables.

PS: Thank's for approving.

@erik-wramner I see you have very little time at hand, plus the PR is pretty big. I really understand this and I don't want to force you into reviewing these changes. If it's okay with you, just tell me: @fbartels already approved and the tests look good, so there should be no risk involved in merging this if you are okay with not having reviewed this one. What's your take on this?

There is one more thing I'd really like to see: A new release. You already drafted one for 7.0.1. This should go alongside a newer stable version. The current :stable-tag for Docker is 4 month old.

I've approved the changes. I'll try to make a release this weekend provided that master is stable (i.e. no serious bugs reported).