live_checkpoint.sh #3

#!/bin/bash
#------------------------------------------------------------------------------
# Copyright (c) Perforce Software, Inc., 2007-2015. All rights reserved
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# 1  Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#
# 2.  Redistributions in binary form must reproduce the above copyright
#     notice, this list of conditions and the following disclaimer in the
#     documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL PERFORCE
# SOFTWARE, INC. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
# ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
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# THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
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#------------------------------------------------------------------------------

# 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 is using the following external variables:
#
# P4INSTANCE - 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 P4INSTANCE=${P4INSTANCE:-Undefined} 
export P4INSTANCE=${1:-$P4INSTANCE} 
if [[ $P4INSTANCE == 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 $P4INSTANCE
. /p4/common/bin/backup_functions.sh

checkpoint () {
	log "Create a new checkpoint from the live db files."
    # curly braces are necessary to capture the output of 'time'
    { time $P4DBIN -r $P4ROOT -jc -Z ${CHECKPOINTS}/${P4SERVER}; } \
        >>"$LOGFILE" 2>&1 || \
	    { die "ERROR - New checkpoint failed!"; }
}

recreate_offline_db_files () {
	log "Recreate offline db files from last checkpoint."
	rm -f $OFFLINE_DB/db.*
    # curly braces are necessary to capture the output of 'time'
    { time $P4DBIN -r $OFFLINE_DB -J off -jr -z ${CHECKPOINTS}/${P4SERVER}.ckp.${CHECKPOINTNUM}.gz; } \
        >>"$LOGFILE" 2>&1 || \
	    { log "ERROR - Restore of checkpoint to $OFFLINE_DB failed!"; }
}

######### Start of Script ##########

check_vars
set_vars
check_dirs
/p4/common/bin/p4login
get_journalnum
rotate_last_run_logs
log "Start $P4SERVER Checkpoint"
checkpoint
recreate_offline_db_files
remove_old_checkpoints_and_journals
remove_old_logs
log "End $P4SERVER Checkpoint"
mail_log_file "$HOSTNAME $P4SERVER live checkpoint log."