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Install Haskell

This is a guide to installing Haskell using Stack.

Install Stack​

Stack is a tool for managing haskell projects, installing compilers and packages, and building projects. The installation is done as follows.

sudo pacman -S stack

Basic Usage​

To create a new project, run stack new.

stack new hs-proj

When you create a new project, the following directory structure will be created, and you can write the main code in Main.hs.

.
├── app
│  └── Main.hs
├── ChangeLog.md
├── LICENSE
├── package.yaml
├── proj-name.cabal
├── README.md
├── Setup.hs
├── src
│  └── Lib.hs
├── stack.yaml
├── stack.yaml.lock
└── test
   └── Spec.hs

To compile, run stack build.

stack build

To execute code, run stack exec *-exe.

stack exec hs-proj-exe

Remove stack​

Remove ~/.stack and /usr/local/bin/stack.

Reference​