123 lines
5.3 KiB
Markdown
123 lines
5.3 KiB
Markdown
# Getting started
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GHCup makes it easy to install specific versions of GHC on GNU/Linux,
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macOS (aka Darwin), FreeBSD and Windows and can also bootstrap a fresh [Haskell developer environment](./install/#supported-tools) from scratch.
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It follows the unix UNIX philosophy of [do one thing and do it well](https://en.wikipedia.org/wiki/Unix_philosophy#Do_One_Thing_and_Do_It_Well). Similar in scope to [rustup](https://github.com/rust-lang-nursery/rustup.rs), [pyenv](https://github.com/pyenv/pyenv) and [jenv](http://www.jenv.be).
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## Installation
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The following commands will download the `ghcup` binary into `~/.ghcup/bin` (or `C:\ghcup\bin` on windows) and then
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run it to interactively install the [Haskell Toolchain](#supported-tools). These commands should be run as **non-root/non-admin
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user**.
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For Linux, macOS, FreeBSD or Windows Subsystem 2 for Linux, run this in a terminal:
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```sh
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curl --proto '=https' --tlsv1.2 -sSf https://get-ghcup.haskell.org | sh
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```
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For Windows, run this in a PowerShell session:
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```psh
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Set-ExecutionPolicy Bypass -Scope Process -Force;[System.Net.ServicePointManager]::SecurityProtocol = [System.Net.ServicePointManager]::SecurityProtocol -bor 3072;Invoke-Command -ScriptBlock ([ScriptBlock]::Create((Invoke-WebRequest https://www.haskell.org/ghcup/sh/bootstrap-haskell.ps1 -UseBasicParsing))) -ArgumentList $true
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```
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If you want to know what these scripts do, check out the [source code at the repository](https://gitlab.haskell.org/haskell/ghcup-hs/-/tree/master/scripts/bootstrap). Advanced users may want to perform a [manual installation](#manual-install) and GPG verify the binaries.
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## First steps
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1. To get started with creating a Haskell project, follow the [Getting Started with Haskell and Cabal](https://cabal.readthedocs.io/en/latest/getting-started.html) guide
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2. To properly learn Haskell, run through the [CIS 194 Haskell course](https://www.cis.upenn.edu/~cis194/spring13/) including exercises
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3. To learn more about Haskell Toolchain management, check out the [ghcup user guide](./guide.md)
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## Uninstallation
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On linux, just run `ghcup nuke`, then make sure any ghcup added lines in your `~/.bashrc` (or similar) are removed.
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On windows, double-click on the `Uninstall Haskell.ps1` PowerShell script on your Desktop.
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## Supported tools
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GHCup supports the following tools, which are also known as the **Haskell Toolchain**:
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1. [GHC](https://www.haskell.org/ghc/)
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2. [cabal-install](https://cabal.readthedocs.io/en/latest/)
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3. [haskell-language-server](https://haskell-language-server.readthedocs.io/en/latest/)
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4. [stack](https://docs.haskellstack.org/en/latest/README/)
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## Supported platforms
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This list may not be exhaustive and specifies support for bindists only.
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| Platform | Architecture | ghcup | GHC | cabal | HLS | stack |
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| ------ | ------ | ------ | ------ | ------ | ------ | ------ |
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| Windows 7 | amd64 | ❔ | ✅ | ✅ | ✅ | ✅ |
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| Windows 10 | amd64 | ✅ | ✅ | ✅ | ✅ | ✅ |
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| Windows Server 2016 | amd64 | ✅ | ✅ | ✅ | ✅ | ✅ |
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| Windows Server 2019 | amd64 | ✅ | ✅ | ✅ | ✅ | ✅ |
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| Windows Server 2022 | amd64 | ✅ | ✅ | ✅ | ✅ | ✅ |
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| Windows WSL1 | amd64 | ❌ | ❔ | ❔ | ❔ | ❔ |
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| Windows WSL2 | amd64 | ✅ | ✅ | ✅ | ✅ | ✅ |
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| MacOS >=10.13 | amd64 | ✅ | ✅ | ✅ | ✅ | ✅ |
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| MacOS <10.13 | amd64 | ❌ | ❔ | ❔ | ❔ | ❔ |
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| MacOS | aarch64 | ✅ | ✅ | ✅ | ⚠️ | ❌ |
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| FreeBSD | amd64 | ✅ | ⚠️ | ✅ | ⚠️ | ❌ |
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| Linux generic | x86 | ✅ | ✅ | ✅ | ✅ | ✅ |
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| Linux generic | amd64 | ✅ | ✅ | ✅ | ✅ | ✅ |
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| Linux generic | aarch64 | ✅ | ⚠️ | ✅ | ⚠️ | ❌ |
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| Linux generic | armv7 | ✅ | ⚠️ | ✅ | ⚠️ | ❌ |
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### Windows 7
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May or may not work, several issues:
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* [https://gitlab.haskell.org/haskell/ghcup-hs/-/issues/140](https://gitlab.haskell.org/haskell/ghcup-hs/-/issues/140)
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* [https://gitlab.haskell.org/haskell/ghcup-hs/-/issues/197](https://gitlab.haskell.org/haskell/ghcup-hs/-/issues/197)
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### WSL1
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Unsupported. GHC may or may not work. Upgrade to WSL2.
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### MacOS <13
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Not supported. Would require separate binaries, since >=13 binaries are incompatible.
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Please upgrade.
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### MacOS aarch64
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HLS bindists are still experimental. Stack is theoretically supported, but has no binaries yet.
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### FreeBSD
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Lacks some upstream bindists and may need compat libs, since most bindists are built on FreeBSD-12.
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HLS bindists are experimental.
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### Linux ARMv7/AARCH64
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Lower availability of bindists. HLS only has experimental ones. Stack not supported currently.
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## Manual install
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Download the binary for your platform at [https://downloads.haskell.org/~ghcup/](https://downloads.haskell.org/~ghcup/)
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and place it into your `PATH` anywhere.
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If you want to GPG verify the binaries, import the following key first: `7784930957807690A66EBDBE3786C5262ECB4A3F`.
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Then adjust your `PATH` in `~/.bashrc` (or similar, depending on your shell) like so:
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```sh
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export PATH="$HOME/.cabal/bin:$HOME/.ghcup/bin:$PATH"
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```
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## Vim integration
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See [ghcup.vim](https://github.com/hasufell/ghcup.vim).
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## Get help
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* [Libera IRC chat on #haskell-ghcup or #haskell](https://kiwiirc.com/nextclient/irc.libera.chat/?nick=Guest%7C?#haskell,#haskell-ghcup)
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* [GHCup issue tracker](https://gitlab.haskell.org/haskell/ghcup-hs/issues)
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* [Matrix](https://app.element.io/#/room/#haskell-tooling:matrix.org)
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* [Discord](https://discord.gg/pKYf3zDQU7)
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