Safe Haskell	None
Language	Haskell2010

Sys.CmdSpec

Documentation

data CmdSpec Source

Constructors

ShellCommand String

A command line to execute using the shell

RawCommand FilePath [String]

The name of an executable with a list of arguments

The FilePath argument names the executable, and is interpreted according to the platform's standard policy for searching for executables. Specifically:

on Unix systems the execvp(3) semantics is used, where if the executable filename does not contain a slash (/) then the PATH environment variable is searched for the executable.
on Windows systems the Win32 CreateProcess semantics is used. Briefly: if the filename does not contain a path, then the directory containing the parent executable is searched, followed by the current directory, then some standard locations, and finally the current PATH. An .exe extension is added if the filename does not already have an extension. For full details see the documentation for the Windows SearchPath API.

Instances

Eq CmdSpec Source
Ord CmdSpec Source
Show CmdSpec Source
IsString CmdSpec Source
(Choice p, Applicative f) => AsRawCommand p f CmdSpec Source
(Choice p, Applicative f) => AsShellCommand p f CmdSpec Source
Applicative f => AsExecutableArguments (->) f CmdSpec Source
Applicative f => AsExecutableName (->) f CmdSpec Source
AsCmdSpec p f CmdSpec Source

class AsCmdSpec p f s where Source

Minimal complete definition

Nothing

Methods

_CmdSpec :: Optic' p f s CmdSpec Source

Instances

Functor f => AsCmdSpec (->) f CreateProcess Source
(Profunctor p, Functor f) => AsCmdSpec p f CmdSpec Source
AsCmdSpec p f CmdSpec Source

class AsExecutableName p f s where Source

Minimal complete definition

Nothing

Methods

_ExecutableName :: Optic' p f s FilePath Source

Instances

Applicative f => AsExecutableName (->) f CmdSpec Source
Applicative f => AsExecutableName (->) f CreateProcess Source
AsExecutableName p f FilePath Source

class AsExecutableArguments p f s where Source

Minimal complete definition

Nothing

Methods

_ExecutableArguments :: Optic' p f s [String] Source

Instances

Applicative f => AsExecutableArguments (->) f CmdSpec Source
Applicative f => AsExecutableArguments (->) f CreateProcess Source
AsExecutableArguments p f [String] Source

class AsShellCommand p f s where Source

Minimal complete definition

Nothing

Methods

_ShellCommand :: Optic' p f s String Source

Instances

Applicative f => AsShellCommand (->) f CreateProcess Source
(Choice p, Applicative f) => AsShellCommand p f CmdSpec Source
AsShellCommand p f String Source

class AsRawCommand p f s where Source

Minimal complete definition

Nothing

Methods

_RawCommand :: Optic' p f s (FilePath, [String]) Source

Instances

Applicative f => AsRawCommand (->) f CreateProcess Source
(Choice p, Applicative f) => AsRawCommand p f CmdSpec Source
AsRawCommand p f (FilePath, [String]) Source