depot/pkgs/development/tools/smlfmt/default.nix

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{ lib, stdenv, fetchFromGitHub, mlton }:
stdenv.mkDerivation rec {
pname = "smlfmt";
version = "1.1.0";
src = fetchFromGitHub {
owner = "shwestrick";
repo = pname;
rev = "v${version}";
hash = "sha256-qwhYOZrck028NliPDnqFZel3IxopQzouhHq6R7DkfPE=";
};
nativeBuildInputs = [ mlton ];
installPhase = ''
runHook preInstall
install -Dm755 -t $out/bin smlfmt
runHook postInstall
'';
meta = {
description = "Custom parser/auto-formatter for Standard ML";
mainProgram = "smlfmt";
longDescription = ''
A custom parser and code formatter for Standard ML, with helpful error messages.
Supports SML source files (.sml, .sig, .fun, etc.) as well as MLBasis
compilation files (.mlb) using MLton conventions, including MLBasis path
maps.
'';
license = lib.licenses.mit;
maintainers = with lib.maintainers; [ munksgaard ];
platforms = mlton.meta.platforms;
homepage = "https://github.com/shwestrick/smlfmt";
};
}