Copyright	2019 Emily Pillmore
License	BSD
Maintainer	Emily Pillmore <emilypi@cohomolo.gy>
Stability	Experimental
Portability	TypeFamilies, RankNTypes
Safe Haskell	Safe
Language	Haskell2010

System.Process.Microlens

Contents

Lenses
Traversals
Classy Lenses
Combinators

Description

This module provides all of the optical exports, as well ask any associated combinators. For just the optics, see Optics, or if you are in need of something lighter weight, just for working with a CreateProcess in terms of getters and setters, see https://hackage.haskell.org/package/microlens

For more information on usage and how to work with lenses, see http://github.com/ekmett/lens/wiki and the tests for example uses. You can also ask questions on Freenode in the #haskell-lens channel.

Synopsis

cmdspec_ :: Lens' CreateProcess CmdSpec
cwd_ :: Lens' CreateProcess (Maybe FilePath)
env_ :: Lens' CreateProcess (Maybe [(String, String)])
stdin_ :: Lens' CreateProcess StdStream
stdout_ :: Lens' CreateProcess StdStream
stderr_ :: Lens' CreateProcess StdStream
closefds :: Lens' CreateProcess Bool
creategroup :: Lens' CreateProcess Bool
delegatectlc :: Lens' CreateProcess Bool
detachconsole :: Lens' CreateProcess Bool
newsession :: Lens' CreateProcess Bool
childgroup :: Lens' CreateProcess (Maybe CGid)
childuser :: Lens' CreateProcess (Maybe CUid)
useprocessjobs :: Lens' CreateProcess Bool
arguments :: Traversal' CmdSpec [String]
class HasStdin a where
- _Stdin :: Lens' a StdStream
class HasStdout a where
- _Stdout :: Lens' a StdStream
class HasStderr a where
- _Stderr :: Lens' a StdStream
arguing :: String -> CmdSpec -> CmdSpec

Lenses

cmdspec_ :: Lens' CreateProcess CmdSpec Source #

Lens into the cmdspec entry of the CreateProcess record

cwd_ :: Lens' CreateProcess (Maybe FilePath) Source #

Lens into the cwd entry of the CreateProcess record

env_ :: Lens' CreateProcess (Maybe [(String, String)]) Source #

Lens into the env entry of the CreateProcess record

stdin_ :: Lens' CreateProcess StdStream Source #

Lens into the std_in entry of the CreateProcess record

stdout_ :: Lens' CreateProcess StdStream Source #

Lens into the std_out entry of the CreateProcess record

stderr_ :: Lens' CreateProcess StdStream Source #

Lens into the std_err entry of the CreateProcess record

closefds :: Lens' CreateProcess Bool Source #

Lens into the close_fds entry of the CreateProcess record

creategroup :: Lens' CreateProcess Bool Source #

Lens into the create_group entry of the CreateProcess record

delegatectlc :: Lens' CreateProcess Bool Source #

Lens into the delegate_ctlc entry of the CreateProcess record

detachconsole :: Lens' CreateProcess Bool Source #

Lens into the detach_console entry of the CreateProcess record

newsession :: Lens' CreateProcess Bool Source #

Lens into the new_session entry of the CreateProcess record

childgroup :: Lens' CreateProcess (Maybe CGid) Source #

Lens into the child_group entry of the CreateProcess record

childuser :: Lens' CreateProcess (Maybe CUid) Source #

Lens into the child_user entry of the CreateProcess record

useprocessjobs :: Lens' CreateProcess Bool Source #

Lens into the use_process_jobs entry of the CreateProcess record

Traversals

arguments :: Traversal' CmdSpec [String] Source #

Traversal' into the arguments of a command

Examples:

>>> RawCommand "/bin/ls" ["-l"] ^. arguments
["-l"]

Classy Lenses

class HasStdin a where Source #

Classy lens for types with a stdin

Methods

_Stdin :: Lens' a StdStream Source #

Instances

HasStdin CreateProcess Source #
Instance details Defined in System.Process.Microlens.CreateProcess Methods _Stdin :: Lens' CreateProcess StdStream Source #
HasStdin StdStream Source #
Instance details Defined in System.Process.Microlens.CreateProcess Methods _Stdin :: Lens' StdStream StdStream Source #

class HasStdout a where Source #

Classy lens for types with a stdout

Methods

_Stdout :: Lens' a StdStream Source #

Instances

HasStdout CreateProcess Source #
Instance details Defined in System.Process.Microlens.CreateProcess Methods _Stdout :: Lens' CreateProcess StdStream Source #
HasStdout StdStream Source #
Instance details Defined in System.Process.Microlens.CreateProcess Methods _Stdout :: Lens' StdStream StdStream Source #

class HasStderr a where Source #

Classy lens for types with a stderr

Methods

_Stderr :: Lens' a StdStream Source #

Instances

HasStderr CreateProcess Source #
Instance details Defined in System.Process.Microlens.CreateProcess Methods _Stderr :: Lens' CreateProcess StdStream Source #
HasStderr StdStream Source #
Instance details Defined in System.Process.Microlens.CreateProcess Methods _Stderr :: Lens' StdStream StdStream Source #

Combinators

arguing :: String -> CmdSpec -> CmdSpec Source #

Append an argument to the argument list of a RawCommand

Examples:

>>> arguing "-h" $ RawCommand "/bin/ls" ["-l"]
RawCommand "/bin/ls" ["-l","-h"]

>>> arguing "-h" (RawCommand "/bin/ls" ["-l"]) ^. arguments
["-l","-h"]