Allow to use Symfony 5 components

[Baptouuuu]

Problem

I tried to install couscous/couscous as a global dependency on my machine but it failed as I have other tools that rely on Symfony 5 but Couscous only allow Symfony 3 and 4.

Solution

I've added |~5.0 to the version constraints of Symfony packages. As far I've seen there's no strict requirements that prevent to use this version of the packages.

Comments

• I've only reviewed the code online so I hope the tests cover enough of the code base to catch possible errors. If not so, I'll checkout the project on my machine to check for incompatibilities
• Would it be interesting to update the code base to use PHP 7.1 type system and add Psalm to ease future upgrades ?

[mnapoli]

Would it be interesting to update the code base to use PHP 7.1 type system and add Psalm to ease future upgrades ?

Yes! 7.1 seems definitely reasonable.