I was not aware of all the options you could set at the beginning of a script to help it be more reliable.
I have decided that my script will now have:
set -euo pipefail
The set -e is for the script to exit when there is an error (non-zero) execution of a line. This can come with some side effect but there are quick ways to adapt to them. You could do:
command_wit_error || true
To get your script to continue even if the command on the left did not complete with a zero.
The set -u is good to make sure all variables are set for the script to run properly. Reminds me of a strict mode in some other tools.
The set -o pipefail is good to make sure you get the error code of the rightmost command in the pipeline.
Quick reading on this topic because we have an error in a deployment script that did not prevent the rest to be attempted and cause other issues.
