Haskell Setup (macos)

setup.md

Setup

curl -sSL https://get.haskellstack.org/ | sh


stack new <project-name> simple-hpack
cd <project-name>

// build project
stack build

// install dev tools
stack install ghcid
stack build intero

// run
stack run

Dev environment

• install vscode plugins: Haskero
• cmd+shift+p > Terminal: create new integrated terminal
• In the new terminal, run ghcid. You can either:
  • Add /Users/<user>/.local/bin/ to your path if it's not there already, and run ghcid --command "stack ghci"
  • Or run it like this if you don't want to alter your path: stack exec ghcid -- --command 'stack ghci'
• Ghcid will compile the program on every change and tell you about warnings/errors. You can also ask ghcid to compile and run your program on every change by adding --run

Other stuff:

• start a repl for interactive development: stack ghci, quit with :q
• to add a new dependency, add an entry to dependencies in package.yaml