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#!/bin/sh
# This script verifies that the postgresql data directory has been correctly
# initialized. We do not want to automatically initdb it, because that has
# a risk of catastrophic failure (ie, overwriting a valuable database) in
# corner cases, such as a remotely mounted database on a volume that's a
# bit slow to mount. But we can at least emit a message advising newbies
# what to do.
PGDATA="$1"
if [ -z "$PGDATA" ]
then
echo "Usage: $0 database-path"
exit 1
fi
# PGVERSION is the full package version, e.g., 9.1.2
# Note: the specfile inserts the correct value during package build
PGVERSION=xxxx
# PGMAJORVERSION is major version, e.g., 9.1 (this should match PG_VERSION)
PGMAJORVERSION=`echo "$PGVERSION" | sed 's/^\([0-9]*\.[0-9]*\).*$/\1/'`
# PREVMAJORVERSION is the previous major version, e.g., 8.4, for upgrades
# Note: the specfile inserts the correct value during package build
PREVMAJORVERSION=xxxx
# PGDOCDIR is the directory containing the package's documentation
# Note: the specfile inserts the correct value during package build
PGDOCDIR=xxxx
# Check for the PGDATA structure
if [ -f "$PGDATA/PG_VERSION" ] && [ -d "$PGDATA/base" ]
then
# Check version of existing PGDATA
if [ x`cat "$PGDATA/PG_VERSION"` = x"$PGMAJORVERSION" ]
then
: A-OK
elif [ x`cat "$PGDATA/PG_VERSION"` = x"$PREVMAJORVERSION" ]
then
echo $"An old version of the database format was found."
echo $"Use \"postgresql-setup upgrade\" to upgrade to version $PGMAJORVERSION."
echo $"See $PGDOCDIR/README.rpm-dist for more information."
exit 1
else
echo $"An old version of the database format was found."
echo $"You need to dump and reload before using PostgreSQL $PGMAJORVERSION."
echo $"See $PGDOCDIR/README.rpm-dist for more information."
exit 1
fi
else
# No existing PGDATA! Warn the user to initdb it.
echo $"\"$PGDATA\" is missing or empty."
echo $"Use \"postgresql-setup initdb\" to initialize the database cluster."
echo $"See $PGDOCDIR/README.rpm-dist for more information."
exit 1
fi
exit 0
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