Update of /home/cvsd/slony1/slony1-engine/tools
In directory main.slony.info:/tmp/cvs-serv23391

Modified Files:
      Tag: REL_1_2_STABLE
	slony1_extract_schema.sh 
Added Files:
      Tag: REL_1_2_STABLE
	slony1_extract_for_upgrade.sh 
Log Message:
slony1_extract_schema.sh will now compare the major versions of postgres and pg_dump
to make sure they match.

Added slony1_extract_schema_for_upgrade.sh a wrapper script that will handle 
the requried steps for getting a schema from an older postgres that can be
used as input to a newer version

Addresses bug # 114


Index: slony1_extract_schema.sh
===================================================================
RCS file: /home/cvsd/slony1/slony1-engine/tools/slony1_extract_schema.sh,v
retrieving revision 1.1
retrieving revision 1.1.4.1
diff -C 2 -d -r1.1 -r1.1.4.1
*** slony1_extract_schema.sh	3 Jan 2005 17:04:20 -0000	1.1
--- slony1_extract_schema.sh	30 Mar 2010 17:58:50 -0000	1.1.4.1
***************
*** 14,19 ****
  	exit 1
  fi
- 
- # ----
  # Remember call arguments and get the nodeId of the DB specified
  # ----
--- 14,17 ----
***************
*** 26,29 ****
--- 24,38 ----
  
  # ----
+ # Check version
+ # ----
+ PGBINVER=`pg_dump --version|sed -e 's/.*\([0-9]+*\.[0-9]+*\)\.[0-9]*/\1/'`
+ PGBACKENDVER=`psql -q -At -c 'select version()' $dbname | sed -e 's/.*PostgreSQL \([0-8]+*\.[0-9]+*\).*/\1/'`
+ if [ "x$PGBINVER" != "x$PGBACKENDVER" ];
+ then
+   echo "Postgresql backend $PGBACKENDVER does not match pg_dump version $PGBINVER"
+   exit 1
+ fi
+ # ----
+ # ----
  # Print a warning for sets originating remotely that their
  # triggers and constraints will not be included in the dump.

--- NEW FILE: slony1_extract_for_upgrade.sh ---
#!/bin/sh
# ----------
# slony1_extract_for_upgrade
#
#	Script to extract the user schema of a slony node in preperation
#       for an upgrade of postgresql.
#
# This script will:
#
#      1) Call slony1_extract_schema.sh to extract the schema in the format
#         suitable for the current pg version
#      2) Create a temp database and restore the schema to it
#      3) Use the pg_dump of the postgresql version you are upgrading to to
#         dump the schema to a format suitable for restoring on the new
#         postgresql.
#
#
# Note: This script requires slony1_extract_schema.sh to be in your $PATH
#
# ----------

# ----
# Check for correct usage
# ----
if test $# -ne 5 ; then
	echo "usage: $0 dbname clustername tempdbname existing_pgbindir new_pgbindir" >&2
	exit 1
fi

# Remember call arguments and get the nodeId of the DB specified
# ----
dbname=$1
cluster=$2
tmpdb=$3
existing_pgbindir=$4
new_pgbindir=$5
TMP=tmp_schema.$$



if [ $? -ne 0 ]
then
   echo "error extracting existing schema"
   exit 1
fi

if [ ! -f $existing_pgbindir/pg_dump ]
then
    echo "error $existing_pgbindir does not contain pg_dump"
    exit 1
fi

if [ ! -f $new_pgbindir/pg_dump ]
then
    echo "error $new_pgbindir does not contain pg_dump"
    exit 1
fi

###
# Step 1, extract the schema.
##
PATH=$existing_pgbindir:$PATH slony1_extract_schema.sh $dbname $cluster $tmpdb >$TMP.sql


createdb $tmpdb >/dev/null
if [ $? -ne 0 ]
then
    echo "error creating temp db"
    exit 1
fi

psql $tmpdb <$TMP.sql >/dev/null
if [ $? -ne 0 ]
then
    echo "error restoring schema"
    exit 1;
fi
$new_pgbindir/pg_dump -s $tmpdb

dropdb $tmpdb