Years ago I bought this dodge roll kit by Hammerhead.
And have a decent sized thread about it here.
I think the first thing you need to consider is how or what means you will use for propulsion of your roll. I didn’t use root motion in the animations but launch character.
I think what you are looking for are disable input and enable input for starting and stopping player movement while rolling. The key seems to be on the placement of those two nodes in the code of your roll.