ghcup

Universal installer for the Haskell toolchain

TLDR

Install GHC version

$ ghcup install ghc [9.4.7]

Install latest GHC

$ ghcup install ghc

Set default GHC

$ ghcup set ghc [9.4.7]

Install Cabal

$ ghcup install cabal

Install HLS

$ ghcup install hls

List available and installed tools

$ ghcup list

Remove a GHC version

$ ghcup rm ghc [9.4.7]

Interactive TUI

$ ghcup tui

Upgrade ghcup itself

$ ghcup upgrade

ghcup is the universal installer and version manager for the Haskell toolchain. It provides a centralized way to install, manage, and switch between multiple versions of GHC, Cabal, Stack, and HLS (Haskell Language Server).The tool handles downloading, installing, and setting up PATH entries for all Haskell development tools. It supports installing specific versions, setting global defaults, and maintaining multiple versions side-by-side. The interactive TUI mode provides a visual interface for managing installations.

PARAMETERS

ghc

Glasgow Haskell Compiler.

cabal

Cabal build tool.

hls

Haskell Language Server.

stack

Stack build tool.

CONFIGURATION

~/.ghcup/config.yaml

Configuration file for ghcup settings, download mirrors, and caching preferences.

~/.ghcup/bin/

Installation directory for all managed toolchain binaries.

SUBCOMMANDS

install

Install tool.

set

Set default version.

list

List versions.

Remove version.

upgrade

Upgrade ghcup.

tui

Interactive interface.

whereis

Show tool location.

run

Run a command with a specific toolchain version.

Garbage collect old versions.

INSTALL

brew install ghcup