From d31a16c435e497f320ccfa880122dff963f151a7 Mon Sep 17 00:00:00 2001 From: Luke Shumaker Date: Thu, 23 Aug 2018 20:07:28 -0400 Subject: Organize in to an installable package --- write-ifchanged | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) create mode 100755 write-ifchanged (limited to 'write-ifchanged') diff --git a/write-ifchanged b/write-ifchanged new file mode 100755 index 0000000..bd702a8 --- /dev/null +++ b/write-ifchanged @@ -0,0 +1,26 @@ +#!/usr/bin/env bash +# Copyright (C) 2015 Luke Shumaker +# SPDX-License-Identifier: AGPL-3.0-or-later +# +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU Affero General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. +# +# This program 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 Affero General Public License for more details. +# +# You should have received a copy of the GNU Affero General Public License +# along with this program. If not, see . + +outfile=$1 +tmpfile="$(dirname "$outfile")/.tmp.${outfile##*/}.tmp" + +cat > "$tmpfile" || exit $? +if cmp -s "$tmpfile" "$outfile"; then + rm -f "$tmpfile" || : +else + mv -f "$tmpfile" "$outfile" +fi -- cgit v1.2.3-2-g168b