Add PParams field to ShelleyGenesis data structure

[intricate]

When spinning up a Shelley node, it will be useful to be able to specify these in the genesis configuration.

[edsko]

@nc6 should review this.

[nc6]

I mean, at this point, I wonder if we should just have the entire PParams structure in genesis. I basically overrode only those fields that were necessary to get a test running, otherwise using emptyPParams. But really there's no justification for emptyPParams use outside of testing, and in a Shelley testnet we should be thinking about all of the parameters.

So I'm happy with merging this PR if there's a specific need for these parameters now, but otherwise let's actually pull in the full set of protocol parameters.

[dcoutts]

So I'm happy with merging this PR if there's a specific need for these parameters now, but otherwise let's actually pull in the full set of protocol parameters.

This was just one we discovered we needed. But you're right, we should just pull in the full set.

[intricate]

@nc6 @dcoutts: As suggested, I've now added a field toShelleyGenesis for PParams.

[intricate]

bors r+

[iohk-bors]

Build succeeded

• buildkite/ouroboros-network
• ci/hydra:Cardano:ouroboros-network:required