tests/guix-pack-relocatable.sh

   1 # GNU Guix --- Functional package management for GNU
   2 # Copyright © 2018 Ludovic Courtès <ludo@gnu.org>
   3 #
   4 # This file is part of GNU Guix.
   5 #
   6 # GNU Guix is free software; you can redistribute it and/or modify it
   7 # under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation; either version 3 of the License, or (at
   9 # your option) any later version.
  10 #
  11 # GNU Guix is distributed in the hope that it will be useful, but
  12 # WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 # GNU General Public License for more details.
  15 #
  16 # You should have received a copy of the GNU General Public License
  17 # along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
  18
  19 #
  20 # Test the 'guix pack --relocatable' using the external store, if any.
  21 #
  22
  23 guix pack --version
  24
  25 # 'guix pack --relocatable' requires a C compiler and libc.a, which our
  26 # bootstrap binaries don't provide.  To make the test relatively inexpensive,
  27 # run it on the user's global store if possible, on the grounds that binaries
  28 # may already be there or can be built or downloaded inexpensively.
  29
  30 NIX_STORE_DIR="`guile -c '(use-modules (guix config))(display %storedir)'`"
  31 localstatedir="`guile -c '(use-modules (guix config))(display %localstatedir)'`"
  32 GUIX_DAEMON_SOCKET="$localstatedir/guix/daemon-socket/socket"
  33 export NIX_STORE_DIR GUIX_DAEMON_SOCKET
  34
  35 if ! guile -c '(use-modules (guix)) (exit (false-if-exception (open-connection)))'
  36 then
  37     exit 77
  38 fi
  39
  40 STORE_PARENT="`dirname $NIX_STORE_DIR`"
  41 export STORE_PARENT
  42 if test "$STORE_PARENT" = "/"; then exit 77; fi
  43
  44 # This test requires user namespaces and associated command-line tools.
  45 if ! unshare -mrf sh -c 'mount -t tmpfs none "$STORE_PARENT"'
  46 then
  47     exit 77
  48 fi
  49
  50 test_directory="`mktemp -d`"
  51 export test_directory
  52 trap 'chmod -Rf +w "$test_directory"; rm -rf "$test_directory"' EXIT
  53
  54 tarball="`guix pack -R -S /Bin=bin sed`"
  55 (cd "$test_directory"; tar xvf "$tarball")
  56
  57 # Run that relocatable 'sed' in a user namespace where we "erase" the store by
  58 # mounting an empty file system on top of it.  That way, we exercise the
  59 # wrapper code that creates the user namespace and bind-mounts the store.
  60 unshare -mrf sh -c 'mount -t tmpfs none "$STORE_PARENT"; echo "$STORE_PARENT"/*; "$test_directory/Bin/sed" --version > "$test_directory/output"'
  61 grep 'GNU sed' "$test_directory/output"