hw-examples

Getting started

To get started you need to have Haskell compiler to be installed, as well as some IDE support.

In this course we will use stack - a Haskell build tool that also takes care of installing GHC (Haskell compiler) and package management.

Installing stack

• Create ~/.local/bin and add it to your PATH.
• Install stack: curl -sSL https://get.haskellstack.org/ | sh or brew install haskell-stack
• Watch if there were any warnings about PATH
• [Optional] Run stack setup and stack ghci to verify that you can run Haskell on your machine.

We will also use Atom as an IDE with some Haskell-related plugins.

IDE support

There are number of options to use as and IDE for Haskell. Most popular are Emacs (Spacemacs), Atom and VSCode. There is a Haskforce plugin for Intellij Idea too.

Setting up Atom

• Install Atom (click and follow the instructions)
• Install useful plugins: apm install file-icons linter
• Install Haskell dev tools:
  stack install ghc-mod hindent hlint stylish-haskell hasktags.
• Verify installation: ghc-mod --version.
• Install Atom packages for Haskell:
  apm install ide-haskell language-haskell haskell-ghc-mod linter-hlint autocomplete-haskell ide-haskell-hasktags.

Setting up VSCode

• Install VSCode
• Open VSCode and make it register itself in PATH:
  • Click CMD+SHIFT+P
  • Type shell
  • Select Install 'code' command in PATH
• Install useful pluging:
  • in UI: CMD+SHIFT+P and select Install Extensions
  • Select file-icons and click install
• Install plugins for Haskell development:
  • CMD+SHIFT+P, Install Extensions
  • type haskell to filter a list
  • install Haskell ghc-mod and haskell-linter
  • look at https://marketplace.visualstudio.com/items?itemName=hoovercj.vscode-ghc-mod