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VSCodeでHaskellインストール
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VSCodeでHaskell GHCi Debug Adapter Phoityneインストール
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powershellで以下を貼り付け
Set-ExecutionPolicy Bypass -Scope Process -Force;[System.Net.ServicePointManager]::SecurityProtocol = [System.Net.ServicePointManager]::SecurityProtocol -bor 3072; try { Invoke-Command -ScriptBlock ([ScriptBlock]::Create((Invoke-WebRequest https://www.haskell.org/ghcup/sh/bootstrap-haskell.ps1 -UseBasicParsing))) -ArgumentList $true } catch { Write-Error $_ }
Welcome to Haskell!
This script can download and install the following programs:
* ghcup - The Haskell toolchain installer
* ghc - The Glasgow Haskell Compiler
* msys2 - A linux-style toolchain environment required for many operations
* cabal - The Cabal build tool for managing Haskell software
* stack - (optional) A cross-platform program for developing Haskell projects
* hls - (optional) A language server for developers to integrate with their editor/IDE
Please note that ANTIVIRUS may interfere with the installation. If you experience problems, consider
disabling it temporarily.
Where to install to (this should be a short Path, preferably a Drive like 'C:\')?
If you accept this path, binaries will be installed into 'C:\ghcup\bin' and msys2 into 'C:\ghcup\msys64'.
Press enter to accept the default [C:\]:
Setting env variable GHCUP_INSTALL_BASE_PREFIX to 'C:\'
Preparing for GHCup installation...
GHCup already installed at 'C:\\ghcup'...
Install GHCup
GHCup is already installed, what do you want to do?
[R] Reinstall [C] Continue [A] Abort [?] Help (default is "C"): c
Continuing installation...
Specify Cabal directory (this is where haskell packages end up)
Press enter to accept the default [C:\\cabal]:
Install HLS
Do you want to install the haskell-language-server (HLS) for development purposes as well?
[Y] Yes [N] No [A] Abort [?] Help (default is "N"): y
Install stack
Do you want to install stack as well?
[Y] Yes [N] No [A] Abort [?] Help (default is "N"): y
First checking for Msys2...
Install MSys2
Do you want GHCup to install a default MSys2 toolchain (recommended)?
[Y] Yes [N] No [?] Help (default is "Y"): y
...Msys2 doesn't exist, installing into C:\\ghcup\msys64
Starting installation in 5 seconds, this may take a while...
Downloading Msys2 archive 20221216...
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0
curl: (35) schannel: next InitializeSecurityContext failed: Unknown error (0x80092012) - 失効の関数は証明書の失効を確認
できませんでした。
Exception: Exec: Error executing command curl.exe with arguments '-o C:\Users\ユーザ名\AppData\Local\Temp\\msys2-base-x86_64-20221216.sfx.exe https://repo.msys2.org/distrib/x86_64/msys2-base-x86_64-20221216.sfx.exe'
うまくいかないので、下記参考にインストール
上記はCertificate authority errors (curl)を参照
Certificate authority errors (curl)
If your certificates are outdated or improperly configured, curl may be unable to download ghcup.
There are two known workarounds:
Tell curl to ignore certificate errors (dangerous): curl -k https://raw.githubusercontent.com/haskell/ghcup-hs/master/scripts/bootstrap/bootstrap-haskell | GHCUP_CURL_OPTS="-k" sh
Try to use wget instead: wget -O /dev/stdout https://raw.githubusercontent.com/haskell/ghcup-hs/master/scripts/bootstrap/bootstrap-haskell | BOOTSTRAP_HASKELL_DOWNLOADER=wget sh
On windows, you can disable curl like so:
Set-ExecutionPolicy Bypass -Scope Process -Force;[System.Net.ServicePointManager]::SecurityProtocol = [System.Net.ServicePoin
your Antivirus or Windows Defender interfere with the installation. Disable them temporarily.
→ 実行時、ウイルス対策ソフトを無効にしておく
あとは待つだけ
端末を開き
C:\Users\ユーザ名>ghci
GHCi, version 9.2.7: https://www.haskell.org/ghc/ :? for help
ghci> 1+1
2
ghci>
インストール完了！！
次にVSCodeで以下参考に「プログラムをコンパイル・実行する」を行う
これでVSCodeでも使用可能になった
終わり