- dbtext database management script

scripts/dbtext/ser_dbtext.sh

@@ -0,0 +1,199 @@
+#!/bin/sh
+#
+# $Id$
+#
+# Script for dbtext database maintenance
+#
+# TODO: Check if user and group exist
+#
+
+#################################################################
+# config vars
+#################################################################
+DEFAULT_ROOTDIR="/var/local/lib/ser"
+DEFAULT_DBNAME="ser"
+DEFAULT_OWNER="ser"
+DEFAULT_GROUP="ser"
+
+DEFAULT_SRCDB="ser_db"
+
+usage() {
+cat <<EOF
+Usage: $COMMAND create 
+       $COMMAND drop   
+       $COMMAND backup [database] <file.tar> 
+       $COMMAND restore [database] <file.tar>
+       $COMMAND copy <source_db> <dest_db>
+   
+  Command 'create' creates database named '${DBNAME}' containing tables 
+  needed for SER and SERWeb. 
+
+  Commmand 'drop' deletes database named '${DBNAME}'.
+
+  Command 'backup' Dumps the contents of the database in <file>. If no
+  database name is provided on the command line then the default '${DBNAME}'
+  database will be used.
+
+  Command 'restore' will load the datata previously saved with 'backup'
+  command in the database. If no database name is provided on the command
+  line then '${DBNAME}' database will be loaded.
+    WARNING: Any existing data in the database being restored will be
+             overwritten. Make sure that SER is not running when performing
+	     restore command, otherwise it could corrupt the database !
+
+  Command 'copy' will copy the contents of <source_db> to database <dest_db>.
+  The destination database must not exist -- it will be created.
+
+  Environment variables:
+    ROOTDIR   The root directory of all dbtext databases (${ROOTDIR})
+    DBNAME    Default name of SER database (${DBNAME})
+    OWNER     The username of owner of all database files. This is usualy
+              the username SER runs under.
+    GROUP     THe group of all database files. This should be same as
+              the group of SER processes.
+           
+Report bugs to <[email protected]>
+EOF
+} #usage
+
+
+# Dump the contents of the database to stdout
+db_save() 
+{
+    if [ $# -ne 2 ] ; then
+	echo "ERROR: Bug in $COMMAND"
+	exit 1
+    fi
+    (cd $ROOTDIR/$1; tar cf - *) > $2
+}
+
+
+# Load the contents of the database from a file
+db_load() #pars: <database name> <filename>
+{
+    if [ $# -ne 2 ] ; then
+	echo "ERROR: Bug in $COMMAND"
+	exit 1
+    fi
+    rm -rf $ROOTDIR/$1
+    mkdir -p $ROOTDIR/$1
+    chown $USER:$GROUP $ROOTDIR/$1
+    tar xf $2 -C $ROOTDIR/$1 
+}
+
+
+# copy a database to database_bak
+db_copy() # par: <source_database> <destination_database>
+{
+	if [ $# -ne 2 ] ; then
+		echo  "ERROR: Bug in $COMMAND"
+		exit 1
+	fi
+	cp -a $ROOTDIR/$1 $ROOTDIR/$2
+}
+
+
+# Drop SER database
+ser_drop()
+{
+    # Drop dabase
+    # Revoke user permissions
+
+    echo "Dropping SER database"
+    rm -rf $ROOTDIR/$DBNAME
+} #ser_drop
+
+
+# Create SER database
+ser_create ()
+{
+    echo "Creating SER database"
+    mkdir -p $ROOTDIR/$DBNAME
+    cp -a $SRCDB/* $ROOTDIR/$DBNAME
+    chown -R $OWNER:$GROUP $ROOTDIR/$DBNAME
+    chmod -R 0660 $ROOTDIR/$DBNAME
+} # ser_create
+
+
+
+# Main program
+
+COMMAND=`basename $0`
+
+if [ -z "$ROOTDIR" ]; then
+    ROOTDIR=$DEFAULT_ROOTDIR;
+fi
+
+if [ -z "$DBNAME" ]; then
+    DBNAME=$DEFAULT_DBNAME;
+fi
+
+if [ -z "$OWNER" ]; then
+    OWNER=$DEFAULT_OWNER;
+fi
+
+if [ -z "$GROUP" ]; then
+    GROUP=$DEFAULT_GROUP;
+fi
+
+if [ -z "$SRCDB" ]; then
+    SRCDB=$DEFAULT_SRCDB;
+fi
+
+if [ $# -eq 0 ]; then
+    usage
+    exit 1
+fi
+
+case $1 in
+    create) # Create SER database and users
+	ser_create
+	exit $?
+		;;
+    
+    drop) # Drop SER database and users
+	ser_drop
+	exit $?
+	;;
+
+    backup) # backup SER database
+	shift
+	if [ $# -eq 1 ]; then
+	    db_save $DBNAME $1
+	elif [ $# -eq 2 ]; then
+	    db_save $1 $2
+	else
+	    usage
+	    exit 1
+	fi
+	exit $?
+	;;
+
+    restore) # restore SER database
+	shift
+	if [ $# -eq 1 ]; then
+	    db_load $DBNAME $1
+	elif [ $# -eq 2 ]; then
+	    db_load $1 $2
+	else
+	    usage
+	    exit 1
+	fi
+	exit $?
+	;;
+        
+    copy)
+	shift
+	if [ $# -ne 2 ]; then
+	    usage
+	    exit 1
+	fi
+	db_copy $1 $2
+	exit $?
+	;;
+    
+    *)
+	usage
+	exit 1;
+	;;
+esac