Added utility script pg_dumpaccounts to contrib.

Derived from pg_dumpall it just dumps users and groups.

Jan
This commit is contained in:
Jan Wieck 2000-11-02 18:20:12 +00:00
parent 1173809333
commit 94b8640cd9
3 changed files with 220 additions and 0 deletions

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#-------------------------------------------------------------------------
#
# Makefile for contrib/pg_dumpaccounts
#
# Copyright (c) 1994, Regents of the University of California
#
# $Header: /cvsroot/pgsql/contrib/pg_dumpaccounts/Attic/Makefile,v 1.2 2000/11/02 18:20:12 wieck Exp $
#
#-------------------------------------------------------------------------
subdir = contrib/pg_dumpaccounts
top_builddir = ../..
include $(top_builddir)/src/Makefile.global
all: pg_dumpaccounts
pg_dumpaccounts: pg_dumpaccounts.sh
sed -e 's,@VERSION@,$(VERSION),g' \
-e 's,@MULTIBYTE@,$(MULTIBYTE),g' \
-e 's,@bindir@,$(bindir),g' \
$< >$@
chmod a+x $@
install: all installdirs
$(INSTALL_SCRIPT) pg_dumpaccounts $(DESTDIR)$(bindir)/pg_dumpaccounts
installdirs:
$(mkinstalldirs) $(DESTDIR)$(bindir)
uninstall:
rm -f $(addprefix $(DESTDIR)$(bindir)/, pg_dumpaccounts)
depend dep:
clean distclean maintainer-clean:
rm -f pg_dumpaccounts

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pg_dumpaccounts
This is a little utility script derived from pg_dumpall. It just
dumps the global pg_shadow and pg_group as pg_dumpall does without
dumping any of the databases. This is useful for installations
that have many databases with different backup schedules, where
pg_dumpall will never be run and thus, the users and groups will
never be backed up.

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#! /bin/sh
# pg_dumpaccounts
#
# Dumps the "pg_shadow" and "pg_group" tables, which belong to the
# whole installation rather than any one individual database.
#
# $Header: /cvsroot/pgsql/contrib/pg_dumpaccounts/Attic/pg_dumpaccounts.sh,v 1.1 2000/11/02 18:20:12 wieck Exp $
CMDNAME=`basename $0`
# substituted at build
VERSION='@VERSION@'
MULTIBYTE='@MULTIBYTE@'
bindir='@bindir@'
#
# Find out where we're located
#
PGPATH=
if echo "$0" | grep '/' > /dev/null 2>&1 ; then
# explicit dir name given
PGPATH=`echo $0 | sed 's,/[^/]*$,,'` # (dirname command is not portable)
else
# look for it in PATH ('which' command is not portable)
for dir in `echo "$PATH" | sed 's/:/ /g'` ; do
# empty entry in path means current dir
[ x"$dir" = x ] && dir='.'
if [ -f "$dir/$CMDNAME" ] ; then
PGPATH="$dir"
break
fi
done
fi
# As last resort use the installation directory. We don't want to use
# this as first resort because depending on how users do release upgrades
# they might temporarily move the installation tree elsewhere, so we'd
# accidentally invoke the newly installed versions of pg_dump and psql.
if [ x"$PGPATH" = x"" ]; then
PGPATH=$bindir
fi
#
# Look for needed programs
#
for prog in psql ; do
if [ ! -x "$PGPATH/$prog" ] ; then
echo "The program $prog needed by $CMDNAME could not be found. It was"
echo "expected at:"
echo " $PGPATH/$prog"
echo "If this is not the correct directory, please start $CMDNAME"
echo "with a full search path. Otherwise make sure that the program"
echo "was installed successfully."
exit 1
fi
done
#
# to adapt to System V vs. BSD 'echo'
#
if echo '\\' | grep '\\\\' >/dev/null 2>&1
then
BS='\' dummy='\' # BSD
else
BS='\\' # System V
fi
# The dummy assignment is necessary to prevent Emacs' font-lock
# mode from going ballistic when editing this file.
usage=
#
# Scan options. We're interested in the -h (host) and -p (port) options.
#
while [ $# -gt 0 ] ; do
case $1 in
--help)
usage=t
break
;;
--version)
echo "pg_dumpaccounts (PostgreSQL) $VERSION"
exit 0
;;
--host|-h)
connectopts="$connectopts -h $2"
shift
;;
-h*)
connectopts="$connectopts $1"
;;
--host=*)
connectopts="$connectopts -h "`echo $1 | sed 's/^--host=//'`
;;
--port|-p)
connectopts="$connectopts -p $2"
shift
;;
-p*)
connectopts="$connectopts $1"
;;
--port=*)
connectopts="$connectopts -p "`echo $1 | sed 's/^--port=//'`
;;
*)
echo "unknown option '$1'"
usage=t
;;
esac
shift
done
if [ "$usage" ] ; then
echo "$CMDNAME dumps users and groups of a PostgreSQL database cluster."
echo
echo "Usage:"
echo " $CMDNAME [ -c ] [ -h host ] [ -p port ]"
echo
echo "Options:"
echo " -h, --host <hostname> server host name"
echo " -p, --port <port> server port number"
echo
echo "Report bugs to <pgsql-bugs@postgresql.org>."
exit 0
fi
PSQL="${PGPATH}/psql $connectopts"
echo "--"
echo "-- pg_dumpaccounts ($VERSION) $connectopts"
echo "--"
echo "${BS}connect template1"
#
# Dump users (but not the user created by initdb)
#
echo "DELETE FROM pg_shadow WHERE usesysid NOT IN (SELECT datdba FROM pg_database WHERE datname = 'template1');"
echo
$PSQL -d template1 -At <<__END__
SELECT
'CREATE USER "' || usename || '" WITH SYSID ' || usesysid
|| CASE WHEN passwd IS NOT NULL THEN ' PASSWORD ''' || passwd || '''' else '' end
|| CASE WHEN usecreatedb THEN ' CREATEDB'::text ELSE ' NOCREATEDB' END
|| CASE WHEN usesuper THEN ' CREATEUSER'::text ELSE ' NOCREATEUSER' END
|| CASE WHEN valuntil IS NOT NULL THEN ' VALID UNTIL '''::text
|| CAST(valuntil AS TIMESTAMP) || '''' ELSE '' END || ';'
FROM pg_shadow
WHERE usesysid <> (SELECT datdba FROM pg_database WHERE datname = 'template1');
__END__
echo
#
# Dump groups
#
echo "DELETE FROM pg_group;"
echo
$PSQL -d template1 -At -F ' ' -c 'SELECT * FROM pg_group;' | \
while read GRONAME GROSYSID GROLIST ; do
echo "CREATE GROUP \"$GRONAME\" WITH SYSID ${GROSYSID};"
raw_grolist=`echo "$GROLIST" | sed 's/^{\(.*\)}$/\1/' | tr ',' ' '`
for userid in $raw_grolist ; do
username=`$PSQL -d template1 -At -c "SELECT usename FROM pg_shadow WHERE usesysid = ${userid};"`
echo " ALTER GROUP \"$GRONAME\" ADD USER \"$username\";"
done
done
exit 0