More error handling for docker-clean.

#!/bin/sh

# Deliberately don't set -e, allow failures to continue silently.

set -u

set -eu

docker version --format '{{ .Server.Version }}' > /dev/null

docker version --format '{{ .Client.Version }}' > /dev/null

docker ps --quiet --filter=status=exited | xargs -r docker rm --volumes 2>/dev/null

docker ps --quiet --filter=status=created | xargs -r docker rm --volumes 2>/dev/null

docker images --quiet --filter=dangling=true | xargs -r docker rmi 2>/dev/null

docker volume ls --quiet --filter=dangling=true | xargs -r docker volume rm 2>/dev/null

docker system prune --force

docker system prune --force || true