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SCP-3079 basic support for balanced Marlowe transactions
1. Builds various flavors of Marlowe transactions from script, datum, redeemer. 2. Corrects error in `Cardano.Api.makeTransactionBodyAutoBalance`, which ignores the situation where computing the change increases the execution units, also making the actual fee larger than the computed fee. 3. Needs haddock documentation. 4. Needs revisions to man pages, examples, and tutorial.
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| ----------------------------------------------------------------------------- | ||
| -- | ||
| -- Module : $Headers | ||
| -- License : Apache 2.0 | ||
| -- | ||
| -- Stability : Experimental | ||
| -- Portability : Portable | ||
| -- | ||
| -- | Input/output functions for Marlowe CLI tool. | ||
| -- | ||
| ----------------------------------------------------------------------------- | ||
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| {-# LANGUAGE DeriveGeneric #-} | ||
| {-# LANGUAGE FlexibleContexts #-} | ||
| {-# LANGUAGE FlexibleInstances #-} | ||
| {-# LANGUAGE GeneralizedNewtypeDeriving #-} | ||
| {-# LANGUAGE OverloadedStrings #-} | ||
| {-# LANGUAGE RecordWildCards #-} | ||
| {-# LANGUAGE TypeFamilies #-} | ||
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| module Language.Marlowe.CLI.IO ( | ||
| -- * IO | ||
| decodeFileStrict | ||
| , decodeFileBuiltinData | ||
| ) where | ||
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| import Cardano.Api (ScriptDataJsonSchema (..), scriptDataFromJson) | ||
| import Cardano.Api.Shelley (toPlutusData) | ||
| import Control.Monad.Except (MonadError, MonadIO, liftEither, liftIO) | ||
| import Data.Aeson (FromJSON (..), eitherDecodeFileStrict) | ||
| import Data.Bifunctor (first) | ||
| import Language.Marlowe.CLI.Types (CliError (..), liftCli) | ||
| import Plutus.V1.Ledger.Api (BuiltinData) | ||
| import PlutusTx (dataToBuiltinData) | ||
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| -- | Decode a JSON file in an error monad. | ||
| decodeFileStrict :: MonadError CliError m | ||
| => MonadIO m | ||
| => FromJSON a | ||
| => FilePath -- ^ The JSON file. | ||
| -> m a -- ^ Action to decode the file. | ||
| decodeFileStrict filePath = | ||
| do | ||
| result <- liftIO $ eitherDecodeFileStrict filePath | ||
| liftEither $ first CliError result | ||
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| decodeFileBuiltinData :: MonadError CliError m | ||
| => MonadIO m | ||
| => FilePath | ||
| -> m BuiltinData | ||
| decodeFileBuiltinData file = | ||
| do | ||
| value <- decodeFileStrict file | ||
| liftCli | ||
| . fmap (dataToBuiltinData . toPlutusData) | ||
| $ scriptDataFromJson ScriptDataJsonDetailedSchema value |
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