Django Backup Script

Nombre: DJANGO BACKUP SCRIPT
Autor: (C) 2009 Guy Rutenberg
Descripción: Script que permite generar un backup del proyecto
Formas de uso

$ django_backup /path/to/my/proj
$ django_backup --db-only /path/to/my/proj

#!/bin/bash
 
# (C) 2009 Guy Rutenberg
# Backup Django sites
 
BACKUP_DIR=
FTP_HOST=
FTP_USER=
FTP_PASS=
FTP_BACKUP_DIR=
 
# end of user configurable section
 
PROG=`basename "$0"`
print_usage () {
    echo "USAGE: $0 [options] PROJ_ROOT"
    echo "Backup a Django project located in PROJ_ROOT"
}
 
print_help ()  {
    print_usage
    cat << EOF
 
Options:
    -h, --help          show this help message and exit
    --db-only           only backup the database
 
EOF
}
 
TEMP=`getopt -o h --long help,db-only -n "$PROG" -- "$@"`
if (($?)); then
    print_usage
    exit 1
fi
 
eval set -- "$TEMP"
 
DB_ONLY=0
while true ; do
    case "$1" in
        -h|--help) print_help; exit ;;
        --db-only) DB_ONLY="1" ; shift ;;
        --) shift; break;;
    esac
done
 
 
 
if [ -z "$1" ]
then
 print_usage > /dev/stderr
 exit 1
fi
 
PROJECT_DIR=$1
 
# extract database variables from settings.py
cd "$PROJECT_DIR"
 
 
DB_ENGINE=`python -c "from settings import *; print DATABASE_ENGINE"`
if [ "$DB_ENGINE" != "mysql" ]; then
 echo $DB_ENGINE
 echo "Only mysql databases are supported!">/dev/stderr
 exit 1
fi
 
DB_NAME=`python -c "from settings import *; print DATABASE_NAME"`
DB_USER=`python -c "from settings import *; print DATABASE_USER"`
DB_PASS=`python -c "from settings import *; print DATABASE_PASSWORD"`
DB_HOST=`python -c "from settings import *; print DATABASE_HOST"`
#TODO find how to use it
DB_PORT=`python -c "from settings import *; print DATABASE_PORT"`
 
# set optional parameters: host, port
HOST_ARGS=''
if [ -n "$DB_HOST" ]; then
 HOST_ARGS="--host $DB_HOST"
fi
 
PORT_ARGS=''
if [ -n "$DB_PORT" ]; then
 PORT_ARGS="--port $DB_HOST"
fi
 
SITE_DIR=`dirname "$PROJECT_DIR"`/`basename "$PROJECT_DIR"`
BACKUP_DIR=`dirname "$BACKUP_DIR"`/`basename "$BACKUP_DIR"`
 
echo -n "dumping database... "
DUMP_NAME=${DB_NAME}-$(date +%Y%m%d).sql.bz2
mysqldump --user=${DB_USER} --password=${DB_PASS} $HOST_ARGS \
 $PORT_ARGS --databases ${DB_NAME} \
 | bzip2 -c > ${BACKUP_DIR}/${DUMP_NAME}
if (($?)); then
	echo "failed!"
	exit 1
fi
echo "done"
 
PUT_TARBALL_FTP=""
if [ "$DB_ONLY" -eq "0" ]; then
	echo -n "Creating tarball... "
	TAR_NAME=${SITE_DIR##*/}-$(date +%Y%m%d).tar.bz2
	tar -cjf ${BACKUP_DIR}/${SITE_DIR##*/}-$(date +%Y%m%d).tar.bz2 ${SITE_DIR}
	if (($?)); then
		echo "failed!"
		exit 2
	fi
	echo "done"
	PUT_TARBALL_FTP="put \"${BACKUP_DIR}/${TAR_NAME}\""
fi
 
echo -n "Uploading backup to FTP... "
 
lftp -u ${FTP_USER},${FTP_PASS} ${FTP_HOST}