compute_engine_scripts/buildbots/vm_copy_buildbot_history.sh

#!/bin/bash
#
# This script copies the buildbot history from the master in an old zone to the
# master in the new zone.
#
# Copyright 2013 Google Inc. All Rights Reserved.
# Author: rmistry@google.com (Ravi Mistry)

source vm_config.sh

for VM in $VM_MASTER_NAMES; do

  OLD_MASTER_HOSTNAME="${VM_NAME_BASE}-${VM}-${OLD_ZONE_TAG}"
  NEW_MASTER_HOSTNAME="${VM_NAME_BASE}-${VM}-${ZONE_TAG}"

  BUILDBOT_HISTORY_FILES="http.log* Build-* Canary-* Housekeeper-* Perf-* Test-* state.sqlite twistd.log*"

  for BUILDBOT_HISTORY_FILE in $BUILDBOT_HISTORY_FILES; do

    echo "===== Archiving $BUILDBOT_HISTORY_FILE on the old master ($OLD_MASTER_HOSTNAME) ====="
    $GCOMPUTE_CMD ssh --ssh_user=$PROJECT_USER $OLD_MASTER_HOSTNAME \
      "if [[ -d /home/default/skia-master/buildbot/master ]]; then cd /home/default/skia-master/buildbot/master; else cd /home/default/skia-repo/buildbot/master; fi && " \
      "tar -cz --ignore-failed-read -f /tmp/buildbot-history.tgz $BUILDBOT_HISTORY_FILE && " \
      "scp -o UserKnownHostsFile=/dev/null -o CheckHostIP=no -o StrictHostKeyChecking=no /tmp/buildbot-history.tgz ${PROJECT_USER}@${NEW_MASTER_HOSTNAME}:/home/default/skia-repo/buildbot/master/ && " \
      "rm -rf /tmp/buildbot-history.tgz"

    if [[ $? != "0" ]]; then
      echo "Archiving $BUILDBOT_HISTORY_FILE on the old master failed!"
      exit 1
    fi

    echo "===== Unpacking $BUILDBOT_HISTORY_FILE on the new master ($NEW_MASTER_HOSTNAME) ====="
    $GCOMPUTE_CMD ssh --ssh_user=$PROJECT_USER $NEW_MASTER_HOSTNAME \
      "cd /home/default/skia-repo/buildbot/master && " \
      "tar --overwrite -xzf buildbot-history.tgz && " \
      "rm buildbot-history.tgz"

    if [[ $? != "0" ]]; then
      echo "Unpacking $BUILDBOT_HISTORY_FILE on the new master failed!"
      exit 1
    fi

  done

  echo
  echo "===== Completed transfering history from $OLD_MASTER_HOSTNAME to $NEW_MASTER_HOSTNAME ====="
  echo

done