support for google cloud storage

cron/daily.sh

@@ -7,6 +7,7 @@ list="/var/cache/polynimbus/inventory/storage.list"
 echo "### BEGIN `date`" >$log
 /opt/polynimbus-backup/internal/s3.sh $list >>$log
 /opt/polynimbus-backup/internal/b2.sh $list >>$log
+/opt/polynimbus-backup/internal/gs.sh $list >>$log
 /opt/polynimbus-backup/internal/azure.sh $list >>$log
 /opt/polynimbus-backup/internal/linode.sh $list >>$log
 echo "### END `date`" >>$log

internal/gs.sh

@@ -0,0 +1,28 @@
+#!/bin/bash
+
+list=$1
+
+if [ "`which gcloud 2>/dev/null`" = "" ] && [ -f /root/google-cloud-sdk/path.bash.inc ]; then
+	. /root/google-cloud-sdk/path.bash.inc
+fi
+
+if [ "`which gcloud 2>/dev/null`" = "" ] || [ "`which gsutil 2>/dev/null`" = "" ]; then
+	echo "### skipping Google Storage (client software not found)"
+	exit 0
+fi
+
+
+buckets=`grep ^google $list |grep ' gs ' |awk '{ print $2 ":" $5 }'`
+for entry in $buckets; do
+
+	account="${entry%:*}"
+	bucket="${entry##*:}"
+
+	path="/srv/polynimbus/gs/$account-$bucket"
+	if [ ! -d $path ]; then
+		mkdir -p -m 0700 $path
+	fi
+
+	echo "### syncing gs://$bucket"
+	gsutil rsync -r gs://$bucket $path
+done