Changes to image_to_live to copy stateful partition over

Review URL: http://codereview.chromium.org/1784006

image_to_live.sh

@@ -31,6 +31,7 @@ function cleanup {
   echo "Killing dev server."
   kill_all_devservers
   cleanup_remote_access
+  . "$(dirname $0)/mount_gpt_image.sh" -mu
   rm -rf "${TMP}"
 }
 
@@ -54,6 +55,25 @@ function start_dev_server {
   echo ""
 }
 
+function copy_stateful_tarball {
+  echo "Starting stateful update."
+  # Mounts most recent image stateful dir to /tmp/s
+  . "$(dirname $0)/mount_gpt_image.sh" -m
+  # Create tar files for the stateful partition.
+  cd /tmp/s/var && sudo tar -cf /tmp/var.tar . && cd -
+  cd /tmp/s/dev_image && sudo tar -cf /tmp/developer.tar . && cd -
+  # Copy over tar files.
+  remote_cp /tmp/var.tar /tmp
+  remote_cp /tmp/developer.tar /tmp
+  remote_sh "mkdir /mnt/stateful_partition/var_new |\
+             mkdir /mnt/stateful_partition/dev_image_new |\
+             tar -xf /tmp/var.tar -C /mnt/stateful_partition/var_new |\
+             tar -xf /tmp/developer.tar \
+              -C /mnt/stateful_partition/dev_image_new"
+  # unmounts stateful partition
+  . "$(dirname $0)/mount_gpt_image.sh" -mu
+}
+
 function prepare_update_metadata {
   remote_sh "mount -norw,remount /"
 
@@ -179,6 +199,11 @@ function main() {
     exit 1
   fi
 
+  if ! copy_stateful_tarball; then
+    echo "Stateful update was not successful."
+    exit 1
+  fi
+
   remote_reboot
 
   if [[ ${FLAGS_update_hostkey} -eq ${FLAGS_TRUE} ]]; then

remote_access.sh

@@ -11,6 +11,13 @@ DEFINE_string remote "" "remote hostname/IP of running Chromium OS instance"
 DEFINE_string private_key "$DEFAULT_PRIVATE_KEY" \
   "Private key of root account on remote host"
 
+# Copies $1 to $2 on remote host
+function remote_cp() {
+  REMOTE_OUT=$(scp  -o StrictHostKeyChecking=no -o \
+    UserKnownHostsFile=$TMP_KNOWN_HOSTS $1 root@$FLAGS_remote:$2)
+  return ${PIPESTATUS[0]}
+}
+
 function remote_sh() {
   REMOTE_OUT=$(ssh  -o StrictHostKeyChecking=no -o \
     UserKnownHostsFile=$TMP_KNOWN_HOSTS root@$FLAGS_remote "$@")