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authorLuke Shumaker <lukeshu@sbcglobal.net>2017-01-28 19:24:58 -0500
committerLuke Shumaker <lukeshu@sbcglobal.net>2017-01-28 19:24:58 -0500
commit4bdd8aedd81afc20cc372753d7463706f11aff4a (patch)
tree4fc7f0f0d967c30a090164af31d6a2fd50b44140 /build-aux/write-atomic
parent27f154458021c0cebd0eb6680299693cbc5ef9b8 (diff)
parent36e62cbb6bdb17c318c00ee55f8049930438aa83 (diff)
Merge remote-tracking branch 'autothing/v3/master'
Diffstat (limited to 'build-aux/write-atomic')
-rwxr-xr-xbuild-aux/write-atomic21
1 files changed, 21 insertions, 0 deletions
diff --git a/build-aux/write-atomic b/build-aux/write-atomic
new file mode 100755
index 0000000..ab2a417
--- /dev/null
+++ b/build-aux/write-atomic
@@ -0,0 +1,21 @@
+#!/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##*/}.tmp"
+
+cat > "$tmpfile" || { r=$?; rm -f "$tmpfile"; exit $r; }
+mv -f "$tmpfile" "$outfile"