# GNU Guix --- Functional package management for GNU
# Copyright © 2012-2015, 2017, 2019, 2022 Ludovic Courtès <ludo@gnu.org>
# Copyright © 2013 Nikita Karetnikov <nikita@karetnikov.org>
# Copyright © 2020 Simon Tournier <zimon.toutoune@gmail.com>
#
# 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/>.

#
# Test the `guix package' command-line utility.  This test requires network
# access and is skipped when that is lacking.
#

guix package --version

readlink_base ()
{
    basename `readlink "$1"`
}

# Return true if a typical shebang in the store would exceed Linux's default
# static limit.
shebang_too_long ()
{
    test `echo $NIX_STORE_DIR/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa-bootstrap-binaries-0/bin/bash | wc -c` \
	 -ge 128
}

if ! guile -c '(getaddrinfo "www.gnu.org" "80" AI_NUMERICSERV)' 2> /dev/null \
	|| shebang_too_long
then
    # Skipping.
    exit 77
fi


profile="t-profile-$$"
profile_alt="t-profile-alt-$$"
rm -f "$profile"

module_dir="t-guix-package-net-$$"
mkdir "$module_dir"

trap 'rm -f "$profile" "$profile_alt" "$profile.lock" "$profile_alt.lock" "$profile-"[0-9]* "$profile_alt-"[0-9]* ; rm -r "$module_dir" t-home-'"$$" EXIT


guix package --bootstrap -p "$profile" -i guile-bootstrap
test -L "$profile" && test -L "$profile-1-link"
test ! -f "$profile-2-link"
test -f "$profile/bin/guile"

boot_make="(@ (guix tests) gnu-make-for-tests)"
boot_make_drv="`guix build -e "$boot_make" | grep -v -e -debug`"
guix package --bootstrap -p "$profile" -i "$boot_make_drv"
test -L "$profile-2-link"
test -f "$profile/bin/make" && test -f "$profile/bin/guile"

# Check whether `--list-installed' works.
# XXX: Change the tests when `--install' properly extracts the package
# name and version string.
installed="`guix package -p "$profile" --list-installed | cut -f1 | xargs echo | sort`"
case "x$installed" in
    "guile-bootstrap make-boot0")
        true;;
    "make-boot0 guile-bootstrap")
        true;;
    "*")
        false;;
esac

test "`guix package -p "$profile" -I 'g.*e' | cut -f1`" = "guile-bootstrap"

guix package --bootstrap -p "$profile_alt" -i gcc-bootstrap
installed="`guix package -p "$profile" -p "$profile_alt" -I | cut -f1 | xargs echo | sort`"
case "x$installed" in
    "gcc-bootstrap guile-bootstrap make-boot0")
        true;;
    "*")
        false;;
esac
test "`guix package -p "$profile_alt" -p "$profile" -I | wc -l`" = "3"
rm "$profile_alt"

# List generations.
test "`guix package -p "$profile" -l | cut -f1 | grep guile | head -n1`" \
     = "  guile-bootstrap"

# Exit with 1 when a generation does not exist.
guix package -p "$profile" --list-generations=42 && false
guix package -p "$profile" --switch-generation=99 && false

# Remove a package.
guix package --bootstrap -p "$profile" -r "guile-bootstrap"
test -L "$profile-3-link"
test -f "$profile/bin/make" && test ! -f "$profile/bin/guile"

# Roll back.
guix package --roll-back -p "$profile"
test "`readlink_base "$profile"`" = "$profile-2-link"
test -x "$profile/bin/guile" && test -x "$profile/bin/make"
guix package --roll-back -p "$profile"
test "`readlink_base "$profile"`" = "$profile-1-link"
test -x "$profile/bin/guile" && test ! -x "$profile/bin/make"

# Switch to the rolled generation and switch back.
guix package -p "$profile" --switch-generation=2
test "`readlink_base "$profile"`" = "$profile-2-link"
guix package -p "$profile" --switch-generation=-1
test "`readlink_base "$profile"`" = "$profile-1-link"

# Move to the empty profile.
for i in `seq 1 3`
do
    guix package --bootstrap --roll-back -p "$profile"
    test ! -f "$profile/bin"
    test ! -f "$profile/lib"
    test "`readlink_base "$profile"`" = "$profile-0-link"
done

# Test that '--list-generations' does not output the zeroth generation.
test -z "`guix package -p "$profile" -l 0`"

# Reinstall after roll-back to the empty profile.
guix package --bootstrap -p "$profile" -e "$boot_make"
test "`readlink_base "$profile"`" = "$profile-1-link"
test -x "$profile/bin/guile" && test ! -x "$profile/bin/make"

# Check that the first generation is the current one.
test "`guix package -p "$profile" -l 1 | cut -f3 | head -n1`" = "(current)"

# Roll-back to generation 0, and install---all at once.
guix package --bootstrap -p "$profile" --roll-back -i guile-bootstrap
test "`readlink_base "$profile"`" = "$profile-1-link"
test -x "$profile/bin/guile" && test ! -x "$profile/bin/make"

# Install Make.
guix package --bootstrap -p "$profile" -e "$boot_make"
test "`readlink_base "$profile"`" = "$profile-2-link"
test -x "$profile/bin/guile" && test -x "$profile/bin/make"
grep "`guix build -e "$boot_make"`" "$profile/manifest"

# Make a "hole" in the list of generations, and make sure we can
# roll back and switch "over" it.
rm "$profile-1-link"
guix package --bootstrap -p "$profile" --roll-back
test "`readlink_base "$profile"`" = "$profile-0-link"
guix package -p "$profile" --switch-generation=+1
test "`readlink_base "$profile"`" = "$profile-2-link"

# Make sure LIBRARY_PATH gets listed by `--search-paths'.
guix package --bootstrap -p "$profile" -i guile-bootstrap -i gcc-bootstrap
guix package -p "$profile" --search-paths | grep LIBRARY_PATH

# Roll back so we can delete #3 below.
guix package -p "$profile" --switch-generation=2

# Delete the third generation and check that it was actually deleted.
guix package -p "$profile" --delete-generations=3
test -z "`guix package -p "$profile" -l 3`"

# Search path of combined profiles.  'LIBRARY_PATH' should show up only in the
# combination, not in the individual profiles.
rm "$profile"
guix package --bootstrap -p "$profile" -i guile-bootstrap
guix package --bootstrap -p "$profile_alt" -i gcc-bootstrap
guix package -p "$profile" --search-paths | grep LIBRARY_PATH && false
guix package -p "$profile" -p "$profile_alt" --search-paths \
     | grep "LIBRARY_PATH.*$profile/lib.$profile_alt/lib"

# Simulate an upgrade and make sure the package order is preserved.
cat > "$module_dir/new.scm" <<EOF
(define-module (new)
  #:use-module (guix)
  #:use-module (gnu packages bootstrap))

(define-public new-guile
  (package (inherit %bootstrap-guile)
           (version (string-append "42." (getenv "V_MINOR")))))
(define-public new-gcc
  (package (inherit %bootstrap-gcc)
           (version (string-append "77." (getenv "V_MINOR")))))
EOF

guix package --bootstrap -p "$profile" -i gcc-bootstrap
installed="`guix package -p "$profile" -I | cut -f1`"

# Dry-run upgrade.  Make sure no new generation is created when things are
# already in store and '-n' is used: <https://issues.guix.gnu.org/53267>.
V_MINOR=0
export V_MINOR
profile_before="$(readlink "$profile")"
guix package -p "$profile" --bootstrap -L "$module_dir" -u # build the profile
guix package -p "$profile" --roll-back
guix package -p "$profile" --bootstrap -L "$module_dir" -u . -n # check '-n'
test "$(readlink "$profile")" = "$profile_before"

for i in 1 2
do
    V_MINOR="$i"
    export V_MINOR

    guix package -p "$profile" --bootstrap -L "$module_dir" -u .
    post_upgrade="`guix package -p "$profile" -I | cut -f1`"
    test "$post_upgrade" = "$installed"
done

#
# Try with the default profile.
#

XDG_CACHE_HOME="${XDG_CACHE_HOME:-$HOME/.cache}"
export XDG_CACHE_HOME
HOME="$PWD/t-home-$$"
export HOME

mkdir -p "$HOME"

# Get the canonical directory name so that 'guix package' recognizes it.
HOME="`cd $HOME; pwd -P`"

guix package --bootstrap -e "$boot_make"
test -f "$HOME/.guix-profile/bin/make"

guix package --bootstrap --roll-back
test ! -f "$HOME/.guix-profile/bin/make"