tests/guix-pack-relocatable.sh

   1 # GNU Guix --- Functional package management for GNU
   2 # Copyright © 2018, 2019, 2020 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 storedir="`guile -c '(use-modules (guix config))(display %storedir)'`"
  31 localstatedir="`guile -c '(use-modules (guix config))(display %localstatedir)'`"
  32 NIX_STORE_DIR="$storedir"
  33 GUIX_DAEMON_SOCKET="$localstatedir/guix/daemon-socket/socket"
  34 export NIX_STORE_DIR GUIX_DAEMON_SOCKET
  35
  36 if ! guile -c '(use-modules (guix)) (exit (false-if-exception (open-connection)))'
  37 then
  38     exit 77
  39 fi
  40
  41 # Attempt to run the given command in a namespace where the store is
  42 # invisible.  This makes sure the presence of the store does not hide
  43 # problems.
  44 run_without_store ()
  45 {
  46     if unshare -r true          # Are user namespaces supported?
  47     then
  48         # Run that relocatable executable in a user namespace where we "erase"
  49         # the store by mounting an empty file system on top of it.  That way,
  50         # we exercise the wrapper code that creates the user namespace and
  51         # bind-mounts the store.
  52         unshare -mrf sh -c 'mount -t tmpfs -o ro none "$NIX_STORE_DIR"; '"$*"
  53     else
  54         # Run the relocatable program in the current namespaces.  This is a
  55         # weak test because we're going to access store items from the host
  56         # store.
  57         $*
  58     fi
  59 }
  60
  61 test_directory="`mktemp -d`"
  62 export test_directory
  63 trap 'chmod -Rf +w "$test_directory"; rm -rf "$test_directory"' EXIT
  64
  65 if unshare -r true
  66 then
  67     # Test the 'userns' execution engine.
  68     tarball="`guix pack -R -S /Bin=bin sed`"
  69     (cd "$test_directory"; tar xvf "$tarball")
  70
  71     run_without_store "$test_directory/Bin/sed" --version > "$test_directory/output"
  72     grep 'GNU sed' "$test_directory/output"
  73
  74     # Same with an explicit engine.
  75     run_without_store GUIX_EXECUTION_ENGINE="userns" \
  76                       "$test_directory/Bin/sed" --version > "$test_directory/output"
  77     grep 'GNU sed' "$test_directory/output"
  78
  79     # Check whether the exit code is preserved.
  80     if run_without_store "$test_directory/Bin/sed" --does-not-exist;
  81     then false; else true; fi
  82
  83     chmod -Rf +w "$test_directory"; rm -rf "$test_directory"/*
  84 else
  85     echo "'userns' execution tests skipped" >&2
  86 fi
  87
  88 case "`uname -m`" in
  89     x86_64|i?86)
  90         # Try '-RR' and PRoot.
  91         tarball="`guix pack -RR -S /Bin=bin sed`"
  92         tar tvf "$tarball" | grep /bin/proot
  93         (cd "$test_directory"; tar xf "$tarball")
  94         run_without_store GUIX_EXECUTION_ENGINE="proot" \
  95         "$test_directory/Bin/sed" --version > "$test_directory/output"
  96         grep 'GNU sed' "$test_directory/output"
  97
  98         # Now with fakechroot.
  99         run_without_store GUIX_EXECUTION_ENGINE="fakechroot" \
 100         "$test_directory/Bin/sed" --version > "$test_directory/output"
 101         grep 'GNU sed' "$test_directory/output"
 102
 103         chmod -Rf +w "$test_directory"; rm -rf "$test_directory"/*
 104
 105         if unshare -r true
 106         then
 107             # Check whether the store contains everything it should.  Check
 108             # once when erasing $STORE_PARENT ("/gnu") and once when erasing
 109             # $NIX_STORE_DIR ("/gnu/store").
 110             tarball="`guix pack -RR -S /bin=bin bash-minimal`"
 111             (cd "$test_directory"; tar xf "$tarball")
 112
 113             STORE_PARENT="`dirname $NIX_STORE_DIR`"
 114             export STORE_PARENT
 115
 116             for engine in userns proot fakechroot
 117             do
 118                 for i in $(guix gc -R $(guix build bash-minimal | grep -v -e '-doc$'))
 119                 do
 120                     unshare -mrf sh -c "mount -t tmpfs none \"$NIX_STORE_DIR\"; GUIX_EXECUTION_ENGINE=$engine $test_directory/bin/sh -c 'echo $NIX_STORE_DIR/*'" | grep $(basename $i)
 121                     unshare -mrf sh -c "mount -t tmpfs none \"$STORE_PARENT\";  GUIX_EXECUTION_ENGINE=$engine $test_directory/bin/sh -c 'echo $NIX_STORE_DIR/*'" | grep $(basename $i)
 122                 done
 123             done
 124
 125             chmod -Rf +w "$test_directory"; rm -rf "$test_directory"/*
 126         fi
 127         ;;
 128     *)
 129         echo "skipping PRoot and Fakechroot tests" >&2
 130         ;;
 131 esac
 132
 133 # Ensure '-R' works with outputs other than "out".
 134 tarball="`guix pack -R -S /share=share groff:doc`"
 135 (cd "$test_directory"; tar xf "$tarball")
 136 test -d "$test_directory/share/doc/groff/html"
 137
 138 # Ensure '-R' applies to propagated inputs.  Failing to do that, it would fail
 139 # with a profile collision error in this case because 'python-scipy'
 140 # propagates 'python-numpy'.  See <https://bugs.gnu.org/42510>.
 141 guix pack -RR python-numpy python-scipy --no-grafts -n