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[jackhill/guix/guix.git] / pre-inst-env.in
1 #!/bin/sh
2
3 # GNU Guix --- Functional package management for GNU
4 # Copyright © 2012, 2013, 2014 Ludovic Courtès <ludo@gnu.org>
5 #
6 # This file is part of GNU Guix.
7 #
8 # GNU Guix is free software; you can redistribute it and/or modify it
9 # under the terms of the GNU General Public License as published by
10 # the Free Software Foundation; either version 3 of the License, or (at
11 # your option) any later version.
12 #
13 # GNU Guix is distributed in the hope that it will be useful, but
14 # WITHOUT ANY WARRANTY; without even the implied warranty of
15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 # GNU General Public License for more details.
17 #
18 # You should have received a copy of the GNU General Public License
19 # along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
20
21 # Usage: ./pre-inst-env COMMAND ARG...
22 #
23 # Run COMMAND in a pre-installation environment. Typical use is
24 # "./pre-inst-env guix-build hello".
25
26 # By default we may end up with absolute directory names that contain '..',
27 # which get into $GUILE_LOAD_PATH, leading to '..' in the module file names
28 # recorded by Guile. To avoid that, make sure we get a real absolute
29 # directory name.
30 abs_top_srcdir="`cd "@abs_top_srcdir@" > /dev/null; pwd`"
31 abs_top_builddir="`cd "@abs_top_builddir@" > /dev/null; pwd`"
32
33 GUILE_LOAD_COMPILED_PATH="$abs_top_builddir${GUILE_LOAD_COMPILED_PATH:+:}$GUILE_LOAD_COMPILED_PATH"
34 GUILE_LOAD_PATH="$abs_top_builddir:$abs_top_srcdir${GUILE_LOAD_PATH:+:}:$GUILE_LOAD_PATH"
35 export GUILE_LOAD_COMPILED_PATH GUILE_LOAD_PATH
36
37 # Define $PATH so that `guix' and friends are easily found.
38
39 PATH="$abs_top_builddir/scripts:$abs_top_builddir:$PATH"
40 export PATH
41
42 # Daemon helpers.
43
44 NIX_ROOT_FINDER="$abs_top_builddir/nix/scripts/list-runtime-roots"
45 NIX_SUBSTITUTERS="$abs_top_builddir/nix/scripts/substitute-binary"
46 NIX_SETUID_HELPER="$abs_top_builddir/nix-setuid-helper"
47 NIX_BUILD_HOOK="$abs_top_builddir/nix/scripts/offload"
48 NIX_LIBEXEC_DIR="@abs_top_builddir@/nix/scripts" # for 'guix-authenticate'
49
50 export NIX_ROOT_FINDER NIX_SETUID_HELPER NIX_SUBSTITUTERS \
51 NIX_BUILD_HOOK NIX_LIBEXEC_DIR
52
53 # The 'guix-register' program.
54 GUIX_REGISTER="$abs_top_builddir/guix-register"
55 export GUIX_REGISTER
56
57 # The following variables need only be defined when compiling Guix
58 # modules, but we define them to be on the safe side in case of
59 # auto-compilation.
60
61 NIX_HASH="@NIX_HASH@"
62 export NIX_HASH
63
64 # Define $GUIX_UNINSTALLED to prevent `guix' from
65 # prepending @guilemoduledir@ to the Guile load paths.
66
67 GUIX_UNINSTALLED=1
68 export GUIX_UNINSTALLED
69
70 exec "$@"