summaryrefslogtreecommitdiff
path: root/bin/write-atomic
blob: efb2551f9fa3a614d57ab2b0daf41afc9c9e6ea8 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
#!/usr/bin/env bash
# Copyright (C) 2015-2016  Luke Shumaker
#
# 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 <http://www.gnu.org/licenses/>.

outfile=$1
tmpfile="$(dirname "$outfile")/.tmp${outfile##*/}"

cat > "$tmpfile" || { r=$?; rm -f "$tmpfile"; exit $r; }
mv -f "$tmpfile" "$outfile"