Resolve#1551 and #1020.
We are never returning the result of solved operations so Buildkit could not
cache the layer.
This commit implements a simple system to forward operations' result to the
main build to cache it.
Signed-off-by: Vasek - Tom C <tom.chauveau@epitech.eu>
- Each package can include its own bats file (e.g. `universe.dagger.io/yarn/test/yarn.bats`)
- universe.dagger.io includes a common bash helper file
- bats is installed/launched through yarn with minimal setup
- shellcheck is done across the entire repo
- Integrated into our CI
Signed-off-by: Andrea Luzzardi <aluzzardi@gmail.com>
