1 files changed, 25 insertions, 0 deletions
diff --git a/system/runit-services/doinst.sh b/system/runit-services/doinst.sh
new file mode 100644
index 0000000000000..55e9fb3f73e54
--- /dev/null
+++ b/system/runit-services/doinst.sh
@@ -0,0 +1,25 @@
+
+config() {
+  NEW="$1"
+  OLD="$(dirname $NEW)/$(basename $NEW .new)"
+  # If there's no config file by that name, mv it over:
+  if [ ! -r $OLD ]; then
+    mv $NEW $OLD
+  elif [ "$(cat $OLD | md5sum)" = "$(cat $NEW | md5sum)" ]; then
+    # toss the redundant copy
+    rm $NEW
+  fi
+  # Otherwise, we leave the .new copy for the admin to consider...
+}
+
+CONF_FILES=$()
+while IFS= read -r -d ''; do
+  CONF_FILES+=( "$REPLY" )
+done < <(find -L etc/sv -type f -name conf.new -print0)
+
+for conf_file in "${CONF_FILES[@]}"; do
+  if [ "$conf_file" != '' ]; then
+    config "${conf_file}"
+  fi
+done
+