From 41bfc4bb5e1042ec9eca48ed645393b12978d703 Mon Sep 17 00:00:00 2001
From: Luke Shumaker <lukeshu@sbcglobal.net>
Date: Fri, 8 Apr 2016 17:00:05 -0400
Subject: Actual install process

---
 write-ifchanged | 11 +++++++++++
 1 file changed, 11 insertions(+)
 create mode 100755 write-ifchanged

(limited to 'write-ifchanged')

diff --git a/write-ifchanged b/write-ifchanged
new file mode 100755
index 0000000..c65fa16
--- /dev/null
+++ b/write-ifchanged
@@ -0,0 +1,11 @@
+#!/usr/bin/env bash
+
+outfile=$1
+tmpfile="$(dirname "$outfile")/.tmp${outfile##*/}"
+
+cat > "$tmpfile" || exit $?
+if cmp -s "$tmpfile" "$outfile"; then
+        rm -f "$tmpfile" || :
+else
+        mv -f "$tmpfile" "$outfile"
+fi
-- 
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