#!/bin/sh

# GNU Guix --- Functional package management for GNU
# Copyright © 2012, 2013 Ludovic Courtès <ludo@gnu.org>
#
# This file is part of GNU Guix.
#
# GNU Guix is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or (at
# your option) any later version.
#
# GNU Guix is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.

# Usage: ./pre-inst-env COMMAND ARG...
#
# Run COMMAND in a pre-installation environment.  Typical use is
# "./pre-inst-env guix-build hello".

GUILE_LOAD_COMPILED_PATH="@abs_top_builddir@${GUILE_LOAD_COMPILED_PATH:+:}$GUILE_LOAD_COMPILED_PATH"
GUILE_LOAD_PATH="@abs_top_builddir@:@abs_top_srcdir@${GUILE_LOAD_PATH:+:}:$GUILE_LOAD_PATH"
export GUILE_LOAD_COMPILED_PATH GUILE_LOAD_PATH

# Define $PATH so that `guix' and friends are easily found.

PATH="@abs_top_builddir@/scripts:@abs_top_builddir@:$PATH"
export PATH

# Daemon helpers.

NIX_ROOT_FINDER="@abs_top_builddir@/nix/scripts/list-runtime-roots"
NIX_SUBSTITUTERS="@abs_top_builddir@/nix/scripts/substitute-binary"
NIX_SETUID_HELPER="@abs_top_builddir@/nix-setuid-helper"
export NIX_ROOT_FINDER NIX_SETUID_HELPER NIX_SUBSTITUTERS

# The following variables need only be defined when compiling Guix
# modules, but we define them to be on the safe side in case of
# auto-compilation.

NIX_HASH="@NIX_HASH@"
export NIX_HASH

# Define $GUIX_UNINSTALLED to prevent `guix' from
# prepending @guilemoduledir@ to the Guile load paths.

GUIX_UNINSTALLED=1
export GUIX_UNINSTALLED

exec "$@"