fix: explicitly export environment in shell

cabal has weird quirks which requires this to be done

guix.scm

@@ -4,7 +4,7 @@
              ((guix licenses) #:prefix license:)
              (gnu packages haskell)
              (gnu packages haskell-xyz)
-	     (gnu packages haskell-apps)
+             (gnu packages haskell-apps)
              (gnu packages pkg-config)
              (gnu packages commencement)
              (gnu packages gtk)
@@ -14,9 +14,9 @@
              (gnu packages linux)
              (gnu packages webkit)
              (gnu packages build-tools)
-	     (gnu packages gnome)
-	     (gnu packages base)
-	     (gnu packages bash))
+             (gnu packages gnome)
+             (gnu packages bash)
+             (gnu packages haskell-web))
 
 (package
   (name "svitak-dev-env")
@@ -30,26 +30,44 @@
          (search-path-specification
           (variable "PKG_CONFIG_PATH")
           (files '("lib/pkgconfig" "share/pkgconfig")))
+         (search-path-specification
+          (variable "GI_TYPELIB_PATH")
+          (files '("lib/girepository-1.0")))
          (search-path-specification
           (variable "LD_LIBRARY_PATH")
-          (files '("lib")))))
+          (files '("lib")))
+         (search-path-specification
+          (variable "LIBRARY_PATH")
+          (files '("lib")))
+         (search-path-specification
+          (variable "C_INCLUDE_PATH")
+          (files '("include")))))
+  (inputs
+   (list cairo
+         pango
+         gtk
+         webkitgtk
+	 at-spi2-core
+	 gdk-pixbuf
+         glib
+         libsoup
+         zlib
+         harfbuzz
+	 gsettings-desktop-schemas))
   (native-inputs
    (list bash-minimal
          coreutils
-         ghc-9.2
+         ghc
          cabal-install
          pkg-config
          gcc-toolchain
          gobject-introspection
-         cairo
-         pango
-         gtk+
-         webkitgtk
-         libsoup
-         glib
-         zlib
          gnu-make
-         binutils))
+         binutils
+         ghc-libffi
+         ghc-gtk2hs-buildtools
+         ghc-http-client-tls
+         adwaita-icon-theme))
   (synopsis "Svitak development environment")
   (description "Environment for building Svitak with GTK and WebKit.")
   (home-page "https://example.org")

manifest.scm

@@ -1,22 +0,0 @@
-(use-modules (guix profiles)
-             (guix search-paths)
-             (gnu packages)
-             (gnu packages base))
-
-(let ((specs '("ghc" "cabal-install" "pkg-config" "coreutils" "bash" "grep" "sed"
-               "gobject-introspection" "gcc-toolchain" "make" "glibc-locales"
-               "gtk" "webkitgtk" "libadwaita" "libsoup" "glib" "glib-networking"
-               "cairo" "pango" "at-spi2-core" "gdk-pixbuf" "harfbuzz" "fribidi"
-               "libepoxy" "graphene" "mesa" "wayland" "wayland-protocols"
-               "libx11" "libxkbcommon" "coreutils" "bash")))
-  (manifest
-   (append
-    (manifest-entries (specifications->manifest specs))
-    (list (manifest-entry
-            (name "ld-library-path-automation")
-            (version "0")
-            (item (specification->package "bash")) 
-            (search-paths
-             (list (search-path-specification
-                    (variable "LD_LIBRARY_PATH")
-                    (files '("lib"))))))))))

run-svitak.sh

@@ -1,4 +1,4 @@
-#!/usr/bin/env bash
+#!/bin/sh
 
 BOOK_PATH=""
 
@@ -18,4 +18,10 @@ guix shell -C -N --emulate-fhs \
   --preserve='^XDG_RUNTIME_DIR$' \
   --preserve='^DBUS_SESSION_BUS_ADDRESS$' \
   -D -f guix.scm -- \
-  bash -c "export TEST=2; cabal run svitak -- \"$BOOK_PATH\""
+  bash -c "export LD_LIBRARY_PATH=\$GUIX_ENVIRONMENT/lib:\$LD_LIBRARY_PATH
+    export GI_TYPELIB_PATH=\$GUIX_ENVIRONMENT/lib/girepository-1.0:\$GI_TYPELIB_PATH
+
+    echo \"LD_LIBRARY_PATH is: \$LD_LIBRARY_PATH\"
+
+    cabal clean
+    cabal run svitak -- \"$BOOK_PATH\""