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Options.hs
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Options.hs
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module Options
( Options(..)
, getOptions
) where
import Cardano.Api (NetworkId(..), NetworkMagic(..))
import Data.Maybe (fromMaybe)
import Network.Socket (HostName, PortNumber)
import qualified Options.Applicative as O
import System.Environment (lookupEnv)
import Text.Read (readMaybe)
data Options = Options
{ nodeSocket :: !FilePath
, networkId :: !NetworkId
, databaseUri :: !String
, host :: !HostName
, port :: !PortNumber
, queryPort :: !PortNumber
, commandPort :: !PortNumber
, logConfigFile :: !(Maybe FilePath)
, httpPort :: !PortNumber
} deriving (Show, Eq)
getOptions :: String -> IO Options
getOptions version = do
defaultNetworkId <- O.value . fromMaybe Mainnet <$> readNetworkId
defaultSocketPath <- maybe mempty O.value <$> readSocketPath
defaultDatabaseUri <- maybe mempty O.value <$> readDatabaseUri
defaultHost <- O.value . fromMaybe "127.0.0.1" <$> readHost
defaultPort <- O.value . fromMaybe 3715 <$> readPort
defaultQueryPort <- O.value . fromMaybe 3716 <$> readQueryPort
defaultJobPort <- O.value . fromMaybe 3720 <$> readJobPort
O.execParser $ parseOptions defaultNetworkId defaultSocketPath defaultDatabaseUri defaultHost defaultPort defaultQueryPort defaultJobPort version
where
readNetworkId :: IO (Maybe NetworkId)
readNetworkId = do
value <- lookupEnv "CARDANO_TESTNET_MAGIC"
pure $ Testnet . NetworkMagic <$> (readMaybe =<< value)
readSocketPath :: IO (Maybe FilePath)
readSocketPath = do
value <- lookupEnv "CARDANO_NODE_SOCKET_PATH"
pure case value of
Just "" -> Nothing
_ -> value
readDatabaseUri :: IO (Maybe String)
readDatabaseUri = do
value <- lookupEnv "CHAIN_SYNC_DB_URI"
pure case value of
Just "" -> Nothing
_ -> value
readHost :: IO (Maybe HostName)
readHost = do
value <- lookupEnv "CHAIN_SYNC_HOST"
pure case value of
Just "" -> Nothing
_ -> value
readPort :: IO (Maybe PortNumber)
readPort = do
value <- lookupEnv "CHAIN_SYNC_PORT"
pure $ readMaybe =<< value
readQueryPort :: IO (Maybe PortNumber)
readQueryPort = do
value <- lookupEnv "CHAIN_SYNC_QUERY_PORT"
pure $ readMaybe =<< value
readJobPort :: IO (Maybe PortNumber)
readJobPort = do
value <- lookupEnv "CHAIN_SYNC_JOB_PORT"
pure $ readMaybe =<< value
parseOptions
:: O.Mod O.OptionFields NetworkId
-> O.Mod O.OptionFields FilePath
-> O.Mod O.OptionFields String
-> O.Mod O.OptionFields HostName
-> O.Mod O.OptionFields PortNumber
-> O.Mod O.OptionFields PortNumber
-> O.Mod O.OptionFields PortNumber
-> String
-> O.ParserInfo Options
parseOptions defaultNetworkId defaultSocketPath defaultDatabaseUri defaultHost defaultPort defaultQueryPort defaultJobPort version = O.info parser infoMod
where
parser :: O.Parser Options
parser = O.helper
<*> versionOption
<*> ( Options
<$> socketPathOption
<*> networkIdOption
<*> databaseUriOption
<*> hostOption
<*> portOption
<*> queryPortOption
<*> jobPortOption
<*> logConfigFileParser
<*> httpPortOption
)
where
versionOption :: O.Parser (a -> a)
versionOption = O.infoOption
("marlowe-chain-sync " <> version)
(O.long "version" <> O.help "Show version.")
socketPathOption :: O.Parser FilePath
socketPathOption = O.strOption options
where
options :: O.Mod O.OptionFields FilePath
options = mconcat
[ O.long "socket-path"
, O.short 's'
, O.metavar "SOCKET_FILE"
, defaultSocketPath
, O.help "Location of the cardano-node socket file. Defaults to the CARDANO_NODE_SOCKET_PATH environment variable."
]
databaseUriOption :: O.Parser String
databaseUriOption = O.strOption options
where
options :: O.Mod O.OptionFields FilePath
options = mconcat
[ O.long "database-uri"
, O.short 'd'
, O.metavar "DATABASE_URI"
, defaultDatabaseUri
, O.help "URI of the database where the chain information is saved."
]
networkIdOption :: O.Parser NetworkId
networkIdOption = O.option parse options
where
parse :: O.ReadM NetworkId
parse = Testnet . NetworkMagic . toEnum <$> O.auto
options :: O.Mod O.OptionFields NetworkId
options = mconcat
[ O.long "testnet-magic"
, O.short 'm'
, O.metavar "INTEGER"
, defaultNetworkId
, O.help "Testnet network ID magic. Defaults to the CARDANO_TESTNET_MAGIC environment variable."
]
portOption :: O.Parser PortNumber
portOption = O.option O.auto $ mconcat
[ O.long "port"
, defaultPort
, O.metavar "PORT_NUMBER"
, O.help "The port number to serve the chain sync protocol on."
, O.showDefault
]
queryPortOption :: O.Parser PortNumber
queryPortOption = O.option O.auto $ mconcat
[ O.long "query-port"
, defaultQueryPort
, O.metavar "PORT_NUMBER"
, O.help "The port number to serve the query protocol on."
, O.showDefault
]
jobPortOption :: O.Parser PortNumber
jobPortOption = O.option O.auto $ mconcat
[ O.long "job-port"
, defaultJobPort
, O.metavar "PORT_NUMBER"
, O.help "The port number to serve the job protocol on."
, O.showDefault
]
hostOption :: O.Parser HostName
hostOption = O.strOption $ mconcat
[ O.long "host"
, O.short 'h'
, defaultHost
, O.metavar "HOST_NAME"
, O.help "The hostname to serve the chain sync protocol on."
, O.showDefault
]
logConfigFileParser :: O.Parser (Maybe FilePath)
logConfigFileParser = O.optional $ O.strOption options
where
options :: O.Mod O.OptionFields FilePath
options = mconcat
[ O.long "log-config-file"
, O.metavar "FILE_PATH"
, O.help "Path to the log configuration JSON file."
]
httpPortOption :: O.Parser PortNumber
httpPortOption = O.option O.auto $ mconcat
[ O.long "http-port"
, defaultPort
, O.metavar "PORT_NUMBER"
, O.help "Port number to serve the http healthcheck API on"
, O.value 8080
, O.showDefault
]
infoMod :: O.InfoMod Options
infoMod = mconcat
[ O.fullDesc
, O.progDesc "Chain sync server for Marlowe Runtime."
, O.header "marlowe-chain-sync : a chain sync server for the Marlowe Runtime."
]