#!/bin/bash
#==============================================================================
# Copyright and license info is available in the LICENSE file included with
# the Server Deployment Package (SDP), and also available online:
# https://swarm.workshop.perforce.com/projects/perforce-software-sdp/view/main/LICENSE
#------------------------------------------------------------------------------

# This script must be called using the p4master_run script in order to properly set
# the environment variables for the script to reference. The p4master_run scripts
# source /p4/common/bin/p4_vars to set the environment variables that this script
# depends on.
#
# This script requires the offline_db directory to contain a restored copy of the
# most recent checkpoint to play the cut off journal into.
#
# This script is using the following external variables:
#
# SDP_INSTANCE - The instance of Perforce that is being backed up. Always an
# integer value.
#
# P4HOME - Server's home directory.
# P4BIN - Command line client name for the instance being backed up.
# P4DBIN - Server executable name for the instance being backed up.
# P4ROOT - Server's root directory. p4/root, p4_N/root
# P4PORT - TCP/IP port for the server instance being backed up.
# P4JOURNAL - Location of the Journal for the server instance being backed up.
#
#
export SDP_INSTANCE=${SDP_INSTANCE:-Undefined} 
export SDP_INSTANCE=${1:-$SDP_INSTANCE} 
if [[ $SDP_INSTANCE == Undefined ]]; then 
   echo "Instance parameter not supplied." 
   echo "You must supply the Perforce instance as a parameter to this script." 
   exit 1 
fi 

. /p4/common/bin/p4_vars $SDP_INSTANCE
. /p4/common/bin/backup_functions.sh
LOGFILE=$LOGS/checkpoint.log

######### Start of Script ##########
check_vars
set_vars
check_uid
check_dirs
ckp_running
/p4/common/bin/p4login
get_journalnum
rotate_last_run_logs
log "Start $P4SERVER Checkpoint"
get_offline_journal_num
stop_p4d
truncate_journal
replay_journals_to_offline_db

# On an edge server, we have to replay the active journal as well because the edge
# server has been running since the journal was rotated.
if [[ $EDGESERVER -eq 1 ]]; then
   replay_active_journal_to_offline_db
fi

switch_db_files
start_p4d
echo Removing db files from $SAVEDIR since we know the journal successfully replayed at this point. >> $LOGFILE
rm -f $SAVEDIR/db.* >> $LOGFILE 2>&1
recreate_offline_db_files
get_offline_journal_num
replay_journals_to_offline_db
ROOTDIR=$OFFLINE_DB
dump_checkpoint
remove_old_checkpoints_and_journals
if [[ -d ${P4HOME}/checkpoints.rep ]]; then
   cd ${P4HOME}/checkpoints.rep
   rm $(ls -t | awk 'NR>1') > /dev/null 2>&1
fi
check_disk_space
remove_old_logs
log "End $P4SERVER Checkpoint"
mail_log_file "$HOSTNAME $P4SERVER Weekly maintenance log."
set_counter
ckp_complete