62 lines
1.7 KiB
Nix
62 lines
1.7 KiB
Nix
{ pkgs, config, lib, ... }:
|
|
|
|
with lib;
|
|
|
|
let
|
|
|
|
cfg = config.programs.vscode.haskell;
|
|
|
|
defaultHieNixExe = hie-nix.hies + "/bin/hie-wrapper";
|
|
defaultHieNixExeText =
|
|
literalExpression ''"''${pkgs.hie-nix.hies}/bin/hie-wrapper"'';
|
|
|
|
hie-nix = pkgs.hie-nix or (abort ''
|
|
vscode.haskell: pkgs.hie-nix missing. Please add an overlay such as:
|
|
${exampleOverlay}
|
|
'');
|
|
|
|
exampleOverlay = ''
|
|
nixpkgs.overlays = [
|
|
(self: super: { hie-nix = import ~/src/hie-nix {}; })
|
|
]
|
|
'';
|
|
|
|
in {
|
|
options.programs.vscode.haskell = {
|
|
enable = mkEnableOption "Haskell integration for Visual Studio Code";
|
|
|
|
hie.enable = mkOption {
|
|
type = types.bool;
|
|
default = true;
|
|
description = "Whether to enable Haskell IDE engine integration.";
|
|
};
|
|
|
|
hie.executablePath = mkOption {
|
|
type = types.path;
|
|
default = defaultHieNixExe;
|
|
defaultText = defaultHieNixExeText;
|
|
description = ''
|
|
The path to the Haskell IDE Engine executable.
|
|
</para><para>
|
|
Because hie-nix is not packaged in Nixpkgs, you need to add it as an
|
|
overlay or set this option. Example overlay configuration:
|
|
<programlisting language="nix">${exampleOverlay}</programlisting>
|
|
'';
|
|
example = literalExpression ''
|
|
(import ~/src/haskell-ide-engine {}).hies + "/bin/hie-wrapper";
|
|
'';
|
|
};
|
|
};
|
|
|
|
config = mkIf cfg.enable {
|
|
programs.vscode.userSettings = mkIf cfg.hie.enable {
|
|
"languageServerHaskell.enableHIE" = true;
|
|
"languageServerHaskell.hieExecutablePath" = cfg.hie.executablePath;
|
|
};
|
|
|
|
programs.vscode.extensions =
|
|
[ pkgs.vscode-extensions.justusadam.language-haskell ]
|
|
++ lib.optional cfg.hie.enable
|
|
pkgs.vscode-extensions.alanz.vscode-hie-server;
|
|
};
|
|
}
|