Handle docker compose and docker space compose

[vandaimer]

What is the goal of this PR? | Qual é o objetivo deste PR?

Solve this issue Issue with new Docker compose command

Create a script that can decide which "docker compose" binary should be used.

The priority still on the docker-compose binary. If docker-compose doesn't exist, then, use docker compose

base.sh can be used for other things later, like define "default" values and load from the base.

What has been done to achieve the goal? | O que foi feito para alcançar o objetivo?

Check if docker-compose binary exists. If yes, use it, if not, fallback to docker compose

How to test if the changes work? | Como testar se as alterações funcionam?

• Edit run.sh and add another line like: echo $DOCKER_COMPOSE after line 6
• run docker/run.sh
• If you have docker-compose, the output from the line above will be the path of your docker-compose
• If you don't have docker-compose, the output from the line above will be docker compose
  • You can simulate that you don't have docker-compose changing the content of DOCKER_COMPOSE_BIN on base.sh line 3 and run docker/run.sh again

[mateusoliveira43]

Thanks for the PR @vandaimer 😄 🚀

[mateusoliveira43]

it is needed to run with .? (same as source, right?)

[vandaimer]

Yes :) https://www.gnu.org/savannah-checkouts/gnu/bash/manual/bash.html#index-_002e

[mateusoliveira43]

instead of storing a variable, what you think about echoing the value?

[vandaimer]

First, to be honest, not sure if is really needed this line 5, I could remove that.

---

Second, I can do this here base.sh

if [ -x "$(command -v $DOCKER_COMPOSE_BIN)" ]; then
  echo $DOCKER_COMPOSE_BIN
else
  echo $DOCKER_COMPOSE_FROM_DOCKER
fi

And on down.sh and run.sh

DOCKER_COMPOSE=$("$ROOT/docker/base.sh")

Works!

---

My concern with this change is that the file's name is base, and the idea is to add/move more things into it, for example, $ROOT/docker/dockerfile that has been repeated many times, but the value is the same for all usages.

So, to return (echoing) more than one value from base would be difficult from the file reading the returns or I just don't know how to do it.

So, let me know what is your idea and let's make that happen :)

[vandaimer]

Should I echo the value instead assigned into a variable, then?

[mateusoliveira43]

Still did not have time to review this one yet 😬

Once I review I will answer you!