如何使用Haskell创建符号链接？ [英] How to create symlink with Haskell?

问题描述

如何用Haskell创建符号链接？

How to create a symlink with Haskell? The directory package to my knowledge does not provide a way to do it.

推荐答案

目录在我的知识中没有提供这种方法。

创建符号链接是不可移植的。例如，Windows上的创建符号链接很害羞;严格而害羞;编辑 ¹ 。因此它不适合目录提供一个基本的ma­操作集; nip­ u­ lat­以便携的方式 （重点介绍）的文件和目录。这会影响所有与平台无关的软件包。

Creating a symbolic link is non-portable. For example, the creation symbolic links on Windows is re­strict­ed¹. Therefore it does not fit into directory providing "a basic set of operations for ma­nip­u­lat­ing files and directories in a portable way" (emphasis mine). This affects all platform independent packages.

特定于平台的软件包 unix 在 System.Posix.Files with createSymbolicLink 虽然：

The platform specific package unix provides that functionality in System.Posix.Files with createSymbolicLink though:

import System.Posix.Files (createSymbolicLink)

main :: IO ()
main = createSymbolicLink "/opt/ghc/7.10.3" "/opt/ghc/active"

_{1 ：这也是为什么 unix-compat 没有实现 createSymbolicLink}

_{1: That's also a reason why unix-compat does not implement createSymbolicLink}

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