Safe Haskell	None
Language	Haskell2010

B9.B9Exec

Description

This modules contains support for external command execution.

Since: 0.5.65

Synopsis

cmd :: (HasCallStack, Member ExcB9 e, CommandIO e) => String -> Eff e ()
hostCmdEither :: forall e. CommandIO e => HostCommandStdin -> String -> Maybe Timeout -> Eff e (Either Timeout ExitCode)
hostCmd :: (CommandIO e, Member ExcB9 e) => String -> Maybe Timeout -> Eff e Bool
hostCmdStdIn :: (CommandIO e, Member ExcB9 e) => HostCommandStdin -> String -> Maybe Timeout -> Eff e Bool
newtype Timeout = TimeoutMicros Int
data HostCommandStdin
- = HostCommandNoStdin
- | HostCommandInheritStdin
- | HostCommandStdInConduit (ConduitT () ByteString IO ())

Documentation

cmd :: (HasCallStack, Member ExcB9 e, CommandIO e) => String -> Eff e () Source #

Execute the given shell command.

If isInteractive is true, the standard-in will be passed to the external command, and all output of the program will be directed to standard-out.

The command and the output is either logged to the logfile with traceL or errorL or written to stdout.

If the command exists with non-zero exit code, the current process exists with the same exit code.

Since: 0.5.65

hostCmdEither Source #

Arguments

:: CommandIO e
=> HostCommandStdin	A `HostCommandStdin` to define standard input. If the value is `HostCommandInheritStdin` then also stdout and stderr will be redirected to the `Inherited` file descriptors.
-> String	The shell command to execute.
-> Maybe Timeout	An optional `Timeout`
-> Eff e (Either Timeout ExitCode)

Run a shell command defined by a string and optionally interrupt the command after a given time has elapsed. This is only useful for non-interactive commands.

Since: 1.0.0

hostCmd Source #

Arguments

:: (CommandIO e, Member ExcB9 e)
=> String	The shell command to execute.
-> Maybe Timeout	An optional `Timeout`
-> Eff e Bool	An action that performs the shell command and returns `True` on success

Run a shell command defined by a string and optionally interrupt the command after a given time has elapsed. If the shell command did not exit with ExitSuccess, or the timer elapsed, a B9Error is thrown.

This is only useful for non-interactive commands.

Since: 1.0.0

hostCmdStdIn Source #

Arguments

:: (CommandIO e, Member ExcB9 e)
=> HostCommandStdin	A `HostCommandStdin` to define standard input. If the value is `HostCommandInheritStdin` then also stdout and stderr will be redirected to the `Inherited` file descriptors.
-> String	The shell command to execute.
-> Maybe Timeout	An optional `Timeout`
-> Eff e Bool	An action that performs the shell command and returns `True` on success

Like hostCmd but with std-input attached.

Since: 1.0.0

newtype Timeout Source #

A way to specify a time intervall for example for the timeouts of system commands.

Since: 1.1.0

Constructors

TimeoutMicros Int

Instances

Eq Timeout Source #
Instance details Defined in B9.B9Config Methods (==) :: Timeout -> Timeout -> Bool # (/=) :: Timeout -> Timeout -> Bool #
Ord Timeout Source #
Instance details Defined in B9.B9Config Methods compare :: Timeout -> Timeout -> Ordering # (<) :: Timeout -> Timeout -> Bool # (<=) :: Timeout -> Timeout -> Bool # (>) :: Timeout -> Timeout -> Bool # (>=) :: Timeout -> Timeout -> Bool # max :: Timeout -> Timeout -> Timeout # min :: Timeout -> Timeout -> Timeout #
Read Timeout Source #
Instance details Defined in B9.B9Config Methods readsPrec :: Int -> ReadS Timeout # readList :: ReadS [Timeout] # readPrec :: ReadPrec Timeout # readListPrec :: ReadPrec [Timeout] #
Show Timeout Source #
Instance details Defined in B9.B9Config Methods showsPrec :: Int -> Timeout -> ShowS # show :: Timeout -> String # showList :: [Timeout] -> ShowS #

data HostCommandStdin Source #

Ways to process std-input.

Since: 1.0.0

Constructors

HostCommandNoStdin	Disbale std-in
HostCommandInheritStdin	Inherit std-in
HostCommandStdInConduit (ConduitT () ByteString IO ())	Produce std-in