[Enhancement]: setCommand should allow space escaping

[ylemoigne]

Module

Core

Proposal

Currently, GenericContainer.setCommand(String) do a command.split(" ").
This doesn't allow escaping the space. It can be an issue for command lines like postgres -c max_connections=100 -c default_transaction_isolation=repeatable read

The alternative method setCommand(String... commandParts) is not always available, for example, when using testcontainers through quarkus dev-service which doesn't expose a way to set command through array/list of parameters.

As command.split() take a regexp, changing the implementation to command.split("[^\\]? ") should allow user to write postgres -c max_connections=100 -c default_transaction_isolation=repeatable\ read and get correct interpretation.

[kiview]

Hi @ylemoigne, thanks for the suggestion.
Would you like to contribute this, if it can be done in a non-breaking manner?

[ylemoigne]

Well, it is a breaking change. The goal is to change the behavior on the presence of an escape sequence, so any command containing the choosen escape sequence will not behave like before. We can only minimize the risk by choosing an escape sequence that have low chance of existing in current usage of the method.