Include xP and xS in the xK derivation

xK-master.nix

@@ -10,6 +10,8 @@ pkgs.stdenv.mkDerivation rec {
 		cmake
 		pkg-config
 		perl
+	] ++ lib.optionals full [
+		makeWrapper
 	];
 
 	buildInputs = with pkgs; [
@@ -24,8 +26,6 @@ pkgs.stdenv.mkDerivation rec {
 		libedit
 	];
 
-	# TODO: Try to integrate xP in the build.
-	# That might need a separate package. See https://nixos.wiki/wiki/Go.
 	src = if local then
 		builtins.path {
 			path = ../${pname}/git;
@@ -45,10 +45,60 @@ pkgs.stdenv.mkDerivation rec {
 		"-DWANT_LIBEDIT=ON"
 	];
 
+	xP = pkgs.buildGoModule rec {
+		pname = "xP";
+		inherit version src doCheck meta;
+
+		modRoot = "./${pname}/";
+#		vendorHash = pkgs.lib.fakeHash;
+		vendorHash = "sha256-TK3rivjzYZwG8bfia22iQO5ZKnBzeIidsHNl6jnQUio=";
+
+		mithril = pkgs.fetchurl {
+			url = "https://unpkg.com/mithril@2.2.3/mithril.js";
+			sha256 = "sha256-136Ow56fShnPfIrUvyjg4oR7tHXyGUkdzThYm+940AY=";
+		};
+
+		# This invokes a premature build that may miss compiler flags.
+		preBuild = ''
+			cp ${mithril} public/mithril.js
+			make
+		'';
+
+		installPhase = ''
+			runHook preInstall
+
+			mkdir -p $out/lib/xP $out/share/xP
+			mv $GOPATH/bin/xP $out/lib/xP/
+			cp -r public/ $out/share/xP/
+
+			runHook postInstall
+		'';
+	};
+
+	xS = pkgs.buildGoModule rec {
+		pname = "xS";
+		inherit version src doCheck meta;
+
+		modRoot = "./${pname}/";
+		vendorHash = null;
+
+		# This invokes a premature build that may miss compiler flags.
+		preBuild = ''
+			make
+		'';
+	};
+
+	# While we can't include them in this derivation, we can link to them.
+	postInstall = pkgs.lib.optionals full ''
+		makeWrapper ${xP}/lib/xP/xP $out/bin/xP --chdir ${xP}/share/xP/public
+		makeWrapper ${xS}/bin/xS $out/bin/xS
+	'';
+
 	doCheck = true;
 
 	meta = with pkgs.lib; {
-		description = "IRC daemon, bot, TUI client";
+		description = "IRC daemon, bot, TUI client"
+			+ optionals full " and its web frontend";
 		homepage = "https://git.janouch.name/p/${pname}";
 		platforms = platforms.all;
 		license = licenses.bsd0;