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# GNU Guix --- Functional package management for GNU
# Copyright © 2022 Ludovic Courtès <ludo@gnu.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 'guix style'.
#
set -e
guix style --version
tmpdir="guix-style-$$"
trap 'rm -r "$tmpdir"' EXIT
tmpfile="$tmpdir/os.scm"
mkdir "$tmpdir"
cat > "$tmpfile" <<EOF
;;; This is a header with three semicolons.
;;;
(define-module (foo bar)
#:use-module (guix)
#:use-module (gnu))
;; One blank line and a page break.
;; And now, the OS.
(operating-system
(host-name "komputilo")
(locale "eo_EO.UTF-8")
;; User accounts.
(users (cons (user-account
(name "alice")
(comment "Bob's sister")
(group "users")
;; Groups fit on one line.
(supplementary-groups '("wheel" "audio" "video")))
%base-user-accounts))
;; The services.
(services
(cons (service mcron-service-type) %base-services)))
EOF
cp "$tmpfile" "$tmpfile.bak"
initial_hash="$(guix hash "$tmpfile")"
guix style -f "$tmpfile"
if test "$initial_hash" != "$(guix hash "$tmpfile")"
then
cat "$tmpfile"
diff -u "$tmpfile.bak" "$tmpfile"
false
fi
# Introduce random changes and try again.
sed -i "$tmpfile" -e's/ \+/ /g'
test "$initial_hash" != "$(guix hash "$tmpfile")"
guix style -f "$tmpfile"
test "$initial_hash" = "$(guix hash "$tmpfile")"
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