Control.Logger.Simple

Documentation

withGlobalLogging :: LogConfig -> IO a -> IO a

Setup global logging. Wrap your main function with this.

data LogConfig

Constructors

LogConfig

Fields

• lc_file :: Maybe FilePath
• lc_stderr :: Bool

setLogLevel :: LogLevel -> IO ()

Set the verbosity level. Messages at our higher than this level are displayed. It defaults to LogDebug.

data LogLevel

Constructors

LogTrace

LogDebug

LogInfo

LogNote

LogWarn

LogError

Instances

Eq LogLevel

Methods

(==) :: LogLevel -> LogLevel -> Bool

(/=) :: LogLevel -> LogLevel -> Bool

Ord LogLevel

Methods

compare :: LogLevel -> LogLevel -> Ordering

(<) :: LogLevel -> LogLevel -> Bool

(<=) :: LogLevel -> LogLevel -> Bool

(>) :: LogLevel -> LogLevel -> Bool

(>=) :: LogLevel -> LogLevel -> Bool

max :: LogLevel -> LogLevel -> LogLevel

min :: LogLevel -> LogLevel -> LogLevel

Read LogLevel

Methods

readsPrec :: Int -> ReadS LogLevel

readList :: ReadS [LogLevel]

readPrec :: ReadPrec LogLevel

readListPrec :: ReadPrec [LogLevel]

Show LogLevel

Methods

showsPrec :: Int -> LogLevel -> ShowS

show :: LogLevel -> String

showList :: [LogLevel] -> ShowS

logTrace :: (?callStack :: CallStack) => MonadIO m => Text -> m ()

logDebug :: (?callStack :: CallStack) => MonadIO m => Text -> m ()

logInfo :: (?callStack :: CallStack) => MonadIO m => Text -> m ()

logNote :: (?callStack :: CallStack) => MonadIO m => Text -> m ()

logWarn :: (?callStack :: CallStack) => MonadIO m => Text -> m ()

logError :: (?callStack :: CallStack) => MonadIO m => Text -> m ()

logFail :: (?callStack :: CallStack) => MonadIO m => Text -> m a

Log on error level and call fail

showText :: Show a => a -> Text

(<>) :: Monoid m => m -> m -> m infixr 6

An infix synonym for mappend.

Since: 4.5.0.0