#!/bin/bash

pushd /usr/local/portage/haskell/dev-lang/ghc/

HASKELL_UPDATER="app-admin/haskell-updater-1\\.2"

for PV in "$@" ; do
	GHC_EBUILD="ghc-$PV.ebuild"

	if [ -e "/var/db/repos/haskell/dev-lang/ghc/$GHC_EBUILD" ] ; then
		GHC_SRC="/var/db/repos/haskell/dev-lang/ghc/$GHC_EBUILD"
	elif [ -e "/usr/layman/haskell/dev-lang/ghc/$GHC_EBUILD" ] ; then
		GHC_SRC="/usr/layman/haskell/dev-lang/ghc/$GHC_EBUILD"
	else
		GHC_SRC="/usr/portage/dev-lang/ghc/$GHC_EBUILD"
	fi

	if cp "$GHC_SRC" . ; then
		if patch "$GHC_EBUILD" slot.patch ; then
			if [ -e "$GHC_EBUILD".orig ] ; then
				rm "$GHC_EBUILD".orig
			fi
		fi
		if grep "=$HASKELL_UPDATER\*" "$GHC_EBUILD" ; then
			sed -i "s|=$HASKELL_UPDATER\*|>=$HASKELL_UPDATER|" "$GHC_EBUILD"
		fi
		ebuild "$GHC_EBUILD" manifest
	fi
done

unset GHC_EBUILD
unset GHC_SRC
unset HASKELL_UPDATER

popd