1 files changed, 44 insertions, 0 deletions
diff --git a/retiolum/bin/supernode-update-hosts-and-hup b/retiolum/bin/supernode-update-hosts-and-hup
new file mode 100755
index 00000000..b6b03c69
--- /dev/null
+++ b/retiolum/bin/supernode-update-hosts-and-hup
@@ -0,0 +1,44 @@
+#! /bin/sh
+#
+# @oxberg we do put this into crontab:
+# * * * * * /supernode-update-hosts-and-hup
+#
+set -euf
+
+cd /etc/tinc/retiolum/hosts
+
+temp1="`mktemp`"
+temp2="`mktemp`"
+trap "rm -f $temp1 $temp2" EXIT INT TERM
+
+old_commit="`cat .commit 2>/dev/null || :`"
+
+_hrefs() {
+  sed -n 's/href="\([^"]\+\)"/\n&\n/gp' |
+      sed -n 's/^href="\([^"]\+\)"$/\1/p'; }
+
+if curl -fsS \
+    "https://github.com/krebscode/painload/tree/master/retiolum/hosts" |
+    _hrefs |
+    grep '^/krebscode/painload/blob/' |
+    grep -v "/blob/$old_commit/" >$temp1
+then
+
+  new_commit=`sed 's|^/krebscode/painload/blob/\([^/]*\)/.*|\1|;q' $temp1`
+
+  sed '
+    s|^/krebscode/painload/blob/[^/]*/retiolum/hosts/\([^/]*\)$|\1|
+  ' $temp1 > $temp2
+
+  xargs rm -v -f <$temp2
+
+  sed "
+    s|^.*$|https://raw.github.com/krebscode/painload/$new_commit/retiolum/hosts/&|
+  " $temp2 > $temp1
+
+  wget -qi- < $temp1
+
+  echo $new_commit > .commit
+
+  pkill -HUP tincd
+fi