# GNU Guix --- Functional package management for GNU
# Copyright © 2012, 2013, 2014 Ludovic Courtès <ludo@gnu.org>
# Copyright © 2013 Nikita Karetnikov <nikita@karetnikov.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/>.

#
# Test the `guix package' command-line utility.
#

guix package --version

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

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

trap 'rm "$profile" "$profile-"[0-9]* ; rm -rf t-home-'"$$" EXIT

# Use `-e' with a non-package expression.
if guix package --bootstrap -e +;
then false; else true; fi

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

# Make sure the profile is a GC root.
guix gc --list-live | grep "`readlink "$profile-1-link"`"

# Installing the same package a second time does nothing.
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"

# No search path env. var. here.
guix package --search-paths -p "$profile"
test "`guix package --search-paths -p "$profile" | wc -l`" = 0

# Check whether we have network access.
if guile -c '(getaddrinfo "www.gnu.org" "80" AI_NUMERICSERV)' 2> /dev/null
then
    boot_make="(@@ (gnu packages commencement) gnu-make-boot0)"
    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"

    # 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.
    if guix package -p "$profile" --list-generations=42;
    then false; else true; fi

    # 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"

    # 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 "over" it.
    rm "$profile-1-link"
    guix package --bootstrap -p "$profile" --roll-back
    test "`readlink_base "$profile"`" = "$profile-0-link"

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

    # 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`"

    # Exit with 1 when a generation does not exist.
    if guix package -p "$profile" --delete-generations=42;
    then false; else true; fi

    # Exit with 0 when trying to delete the zeroth generation.
    guix package -p "$profile" --delete-generations=0
fi

# Make sure multiple arguments to -i works.
guix package --bootstrap -i guile gcc -p "$profile" -n

# Make sure the `:' syntax works.
guix package --bootstrap -i "glibc:debug" -p "$profile" -n

# Make sure nonexistent outputs are reported.
guix package --bootstrap -i "guile-bootstrap:out" -p "$profile" -n
if guix package --bootstrap -i "guile-bootstrap:does-not-exist" -p "$profile" -n;
then false; else true; fi
if guix package --bootstrap -i "guile-bootstrap:does-not-exist" -p "$profile";
then false; else true; fi

# Check whether `--list-available' returns something sensible.
guix package -p "$profile" -A 'gui.*e' | grep guile

# Check whether `--show' returns something sensible.
guix package --show=guile | grep "^name: guile"

# Ensure `--show' doesn't fail for packages with non-package inputs.
guix package --show=texlive

# Search.
LC_MESSAGES=C
export LC_MESSAGES
test "`guix package -s "An example GNU package" | grep ^name:`" = \
    "name: hello"
test -z "`guix package -s "n0t4r341p4ck4g3"`"

# Make sure `--search' can display all the packages.
guix package --search="" > /dev/null

# There's no generation older than 12 months, so the following command should
# have no effect.
generation="`readlink_base "$profile"`"
if guix package -p "$profile" --delete-generations=12m;
then false; else true; fi
test "`readlink_base "$profile"`" = "$generation"

#
# 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 -i guile-bootstrap
test -L "$HOME/.guix-profile"
test -f "$HOME/.guix-profile/bin/guile"

if guile -c '(getaddrinfo "www.gnu.org" "80" AI_NUMERICSERV)' 2> /dev/null
then
    guix package --bootstrap -e "$boot_make"
    test -f "$HOME/.guix-profile/bin/make"
    first_environment="`cd $HOME/.guix-profile ; pwd`"

    guix package --bootstrap --roll-back
    test -f "$HOME/.guix-profile/bin/guile"
    ! test -f "$HOME/.guix-profile/bin/make"
    test "`cd $HOME/.guix-profile ; pwd`" = "$first_environment"
fi

# Move to the empty profile.
default_profile="`readlink "$HOME/.guix-profile"`"
for i in `seq 1 3`
do
    # Make sure the current generation is a GC root.
    profile_link="`readlink "$default_profile"`"
    guix gc --list-live | grep "`readlink "$profile_link"`"

    guix package --bootstrap --roll-back
    ! test -f "$HOME/.guix-profile/bin"
    ! test -f "$HOME/.guix-profile/lib"
    test "`readlink "$default_profile"`" = "$default_profile-0-link"
done

# Check whether '-p ~/.guix-profile' makes any difference.
# See <http://bugs.gnu.org/17939>.
if test -e "$HOME/.guix-profile-0-link"; then false; fi
if test -e "$HOME/.guix-profile-1-link"; then false; fi
guix package --bootstrap -p "$HOME/.guix-profile" -i guile-bootstrap
if test -e "$HOME/.guix-profile-1-link"; then false; fi
guix package --bootstrap --roll-back -p "$HOME/.guix-profile"
if test -e "$HOME/.guix-profile-0-link"; then false; fi

# Extraneous argument.
if guix package install foo-bar;
then false; else true; fi

# Make sure the "broken pipe" doesn't yield an error.
# Note: 'pipefail' is a Bash-specific option.
set -o pipefail || true
guix package -A g | head -1 2> "$HOME/err1"
guix package -I | head -1 2> "$HOME/err2"
test "`cat "$HOME/err1" "$HOME/err2"`" = ""

# Make sure '-L' extends the package module search path.
module_dir="t-guix-package-$$"
mkdir "$module_dir"
trap "rm -rf $module_dir" EXIT

cat > "$module_dir/foo.scm"<<EOF
(define-module (foo)
  #:use-module (guix packages)
  #:use-module (gnu packages emacs))

(define-public x
  (package (inherit emacs)
    (name "emacs-foo-bar")
    (version "42")))
EOF

guix package -A emacs-foo-bar -L "$module_dir" | grep 42
guix package -i emacs-foo-bar-42 -n -L "$module_dir"

# Same thing using the 'GUIX_PACKAGE_PATH' environment variable.
GUIX_PACKAGE_PATH="$module_dir"
export GUIX_PACKAGE_PATH
guix package -A emacs-foo-bar | grep 42
guix package -i emacs-foo-bar-42 -n
