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feat(plutus_mint): set language_view per Plutus version + add V2 cost model

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Without language_view, pallas does not compute script_data_hash on
the tx body. Plutus txs without script_data_hash get rejected with
ConwayUtxowFailure (PPViewHashesDontMatch SNothing (SJust ...)).

Caught 2026-05-07 attempting governor bootstrap on preprod against
Agora's V2 GST policy. Previous code only set language_view when
the policy was V3 — every V2 mint hit the chain rejection.

Three changes:

1. crates/aldabra-core/src/plutus_cost_models.rs — append
   PLUTUS_V2_COST_MODEL_PREPROD constant (175 i64 entries), pulled
   live from preprod Koios epoch_params 2026-05-07. Same protocol-
   version convention as the existing V3 constant: V2 cost model
   is identical mainnet vs preprod (cost models are protocol-version
   parameters, not network), so the _PREPROD suffix is naming
   convention, not a separation point.

2. crates/aldabra-core/src/plutus_mint.rs — replace the V3-only
   language_view block with a per-PlutusVersion match. V2 wires
   the new constant; V3 keeps the existing
   params.plutus_v3_cost_model path; V1 left as TODO with a note
   (no V1 mint use case yet).

3. crates/aldabra-dao/examples/dump_governor.rs — small cargo
   example that encodes a sample GovernorDatum to CBOR hex via
   the existing aldabra_dao::agora::GovernorDatum::to_plutus_data
   path. Used during preprod DAO bringup to construct the inline
   datum for the governor bootstrap tx. Edit values + re-run for
   any DAO bringup. Builds against the existing pallas-codec
   dev-dependency.
This commit is contained in:
Sulkta 2026-05-07 08:52:59 -07:00
parent 616a6eefff
commit 42a0e249b6
3 changed files with 92 additions and 5 deletions
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46
crates/aldabra-dao/examples/dump_governor.rs Normal file
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//! Dump a sample GovernorDatum as PlutusData CBOR hex.
//!
//! Used during preprod DAO bringup (2026-05-07) to construct the
//! inline datum for the governor bootstrap tx. Edit the values in
//! `main()` to your DAO's parameters and run:
//!
//! ```sh
//! cargo run --example dump_governor -p aldabra-dao --release
//! ```
//!
//! Pipe the output hex into `wallet_plutus_mint_unsigned`'s
//! `dest_inline_datum_cbor_hex` arg.
use aldabra_dao::agora::proposal::{ProposalThresholds, ProposalTimingConfig};
use aldabra_dao::agora::GovernorDatum;
use pallas_codec::minicbor;
fn main() {
let g = GovernorDatum {
proposal_thresholds: ProposalThresholds {
execute: 50,
create: 100,
to_voting: 100,
vote: 1,
cosign: 1,
},
next_proposal_id: 0,
proposal_timings: ProposalTimingConfig {
// Short timings for preprod testing — flip these up for
// any real DAO on mainnet (e.g. 7d/7d/48h/24h/1h/30min).
draft_time: 60_000,
voting_time: 60_000,
locking_time: 30_000,
executing_time: 30_000,
min_stake_voting_time: 60_000,
voting_time_range_max_width: 30_000,
},
create_proposal_time_range_max_width: 30_000,
maximum_created_proposals_per_stake: 20,
};
let pd = g.to_plutus_data().expect("encode GovernorDatum");
let mut buf = Vec::new();
minicbor::encode(&pd, &mut buf).expect("encode CBOR");
let hex: String = buf.iter().map(|b| format!("{:02x}", b)).collect();
println!("{}", hex);
}