jenkins-backup.sh

#!/bin/bash -xe

##################################################################################
function usage(){
  echo "usage: $(basename $0) /path/to/jenkins_home archive.tar.gz"
}
##################################################################################

readonly JENKINS_HOME=$1
readonly DEST_FILE=$2
readonly CUR_DIR=$(cd $(dirname ${BASH_SOURCE:-$0}); pwd)
readonly TMP_DIR="$CUR_DIR/tmp"
readonly ARC_NAME="jenkins-backup"
readonly ARC_DIR="$TMP_DIR/$ARC_NAME"
readonly TMP_TAR_NAME="$TMP_DIR/archive.tar.gz"

if [ -z "$JENKINS_HOME" -o -z "$DEST_FILE" ] ; then
  usage >&2
  exit 1
fi

rm -rf "$ARC_DIR" "$TMP_TAR_NAME"
for i in plugins jobs users secrets nodes;do
  mkdir -p "$ARC_DIR"/$i
done

cp "$JENKINS_HOME/"*.xml "$ARC_DIR"

cp "$JENKINS_HOME/plugins/"*.[hj]pi "$ARC_DIR/plugins"
hpi_pinned_count=$(find $JENKINS_HOME/plugins/ -name *.hpi.pinned | wc -l)
jpi_pinned_count=$(find $JENKINS_HOME/plugins/ -name *.jpi.pinned | wc -l)
if [ $hpi_pinned_count -ne 0 -o $jpi_pinned_count -ne 0 ]; then
  cp "$JENKINS_HOME/plugins/"*.[hj]pi.pinned "$ARC_DIR/plugins"
fi

if [ "$(ls -A $JENKINS_HOME/users/)" ]; then
  cp -R "$JENKINS_HOME/users/"* "$ARC_DIR/users"
fi

if [ "$(ls -A $JENKINS_HOME/secrets/)" ] ; then
  cp -R "$JENKINS_HOME/secrets/"* "$ARC_DIR/secrets"
fi

if [ "$(ls -A $JENKINS_HOME/nodes/)" ] ; then
  cp -R "$JENKINS_HOME/nodes/"* "$ARC_DIR/nodes"
fi

function backup_jobs {
  local run_in_path=$1
  local rel_depth=${run_in_path#$JENKINS_HOME/jobs/}
  if [ -d "$run_in_path" ]; then
    cd "$run_in_path"
    find . -maxdepth 1 -type d | while read job_name ; do
      [ "$job_name" = "." ] && continue
      [ "$job_name" = ".." ] && continue
      [ -d "$JENKINS_HOME/jobs/$rel_depth/$job_name" ] && mkdir -p "$ARC_DIR/jobs/$rel_depth/$job_name/"
      find "$JENKINS_HOME/jobs/$rel_depth/$job_name/" -maxdepth 1 -name "*.xml" -print0 | xargs -0 -I {} cp {} "$ARC_DIR/jobs/$rel_depth/$job_name/"
      if [ -f "$JENKINS_HOME/jobs/$rel_depth/$job_name/config.xml" ] && [ "$(grep -c "com.cloudbees.hudson.plugins.folder.Folder" "$JENKINS_HOME/jobs/$rel_depth/$job_name/config.xml")" -ge 1 ] ; then
        #echo "Folder! $JENKINS_HOME/jobs/$rel_depth/$job_name/jobs"
        backup_jobs "$JENKINS_HOME/jobs/$rel_depth/$job_name/jobs"
      else
        true
        #echo "Job! $JENKINS_HOME/jobs/$rel_depth/$job_name"
      fi 
    done
    #echo "Done in $(pwd)"
    cd -
  fi  
}

if [ "$(ls -A $JENKINS_HOME/jobs/)" ] ; then
  backup_jobs $JENKINS_HOME/jobs/
fi

cd "$TMP_DIR"
tar -czvf "$TMP_TAR_NAME" "$ARC_NAME/"*
cd -
mv -f "$TMP_TAR_NAME" "$DEST_FILE"
rm -rf "$ARC_DIR"

exit 0