mirror of https://github.com/postgres/postgres
Make initdb safe against using
a) mismatching backend program, by checking --version output b) mismatching bki files, by putting a version-identifying comment atop those files.
This commit is contained in:
Peter Eisentraut
parent
c44323176e
commit
3280cba2ac
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@ -2,7 +2,7 @@
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#
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# Makefile for catalog
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#
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# $Header: /cvsroot/pgsql/src/backend/catalog/Makefile,v 1.31 2000/10/24 01:38:23 tgl Exp $
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# $Header: /cvsroot/pgsql/src/backend/catalog/Makefile,v 1.32 2000/10/28 22:14:14 petere Exp $
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#
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#-------------------------------------------------------------------------
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@ -39,11 +39,11 @@ pg_includes := $(sort -I$(top_srcdir)/src/include -I$(top_builddir)/src/include)
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global.bki global.description: genbki.sh $(GLOBAL_BKI_SRCS) $(top_srcdir)/src/include/catalog/indexing.h \
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$(top_srcdir)/src/include/postgres_ext.h $(top_builddir)/src/include/config.h
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CPP='$(CPP)' AWK='$(AWK)' $(SHELL) $< $(BKIOPTS) -o global $(pg_includes) $(GLOBAL_BKI_SRCS)
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CPP='$(CPP)' AWK='$(AWK)' $(SHELL) $< $(BKIOPTS) -o global $(pg_includes) $(GLOBAL_BKI_SRCS) --set-version=$(VERSION)
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template1.bki template1.description: genbki.sh $(TEMPLATE1_BKI_SRCS) \
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$(top_srcdir)/src/include/postgres_ext.h $(top_builddir)/src/include/config.h
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CPP='$(CPP)' AWK='$(AWK)' $(SHELL) $< $(BKIOPTS) -o template1 $(pg_includes) $(TEMPLATE1_BKI_SRCS)
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CPP='$(CPP)' AWK='$(AWK)' $(SHELL) $< $(BKIOPTS) -o template1 $(pg_includes) $(TEMPLATE1_BKI_SRCS) --set-version=$(VERSION)
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.PHONY: install-bki
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install-bki: $(BKIFILES) installdirs
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@ -10,7 +10,7 @@
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#
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#
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# IDENTIFICATION
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# $Header: /cvsroot/pgsql/src/backend/catalog/Attic/genbki.sh,v 1.17 2000/10/20 21:03:42 petere Exp $
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# $Header: /cvsroot/pgsql/src/backend/catalog/Attic/genbki.sh,v 1.18 2000/10/28 22:14:14 petere Exp $
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#
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# NOTES
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# non-essential whitespace is removed from the generated file.
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@ -28,6 +28,7 @@ BKIOPTS=
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INCLUDE_DIRS=
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OUTPUT_PREFIX=
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INFILES=
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major_version=
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#
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# Process command line switches.
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@ -54,15 +55,20 @@ do
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-o*)
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OUTPUT_PREFIX=`echo $1 | sed -e 's/^-o//'`
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;;
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--set-version=*)
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arg=`expr x"$1" : x"--set-version=\(.*\)"`
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major_version=`expr x"$arg" : x'\([0-9][0-9]*\.[0-9][0-9]*\)'`
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;;
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--help)
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echo "$CMDNAME generates system catalog bootstrapping files."
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echo
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echo "Usage:"
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echo " $CMDNAME [ -D define [...] ] [ -I dir ] [ -o prefix ]"
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echo " $CMDNAME [ -D define [...] ] [ -I dir ] --set-version=VERSION -o prefix files..."
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echo
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echo "Options:"
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echo " -I path to postgres_ext.h and config.h files"
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echo " -o prefix of output files"
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echo " --set-version PostgreSQL version number for initdb cross-check"
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echo
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echo "The environment variables CPP and AWK determine which C"
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echo "preprocessor and Awk program to use. The defaults are"
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@ -97,6 +103,10 @@ if [ x"$INCLUDE_DIRS" = x"" ] ; then
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exit 1
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fi
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if [ x"$major_version" = x"" ] ; then
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echo "$CMDNAME: invalid or no version number specified" 1>&2
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exit 1
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fi
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if [ x"$TMPDIR" = x"" ] ; then
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TMPDIR=/tmp
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@ -105,12 +115,7 @@ fi
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TMPFILE="$TMPDIR/genbkitmp.c"
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trap "rm -f $TMPFILE" 0 1 2 3 15
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# clear output files
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> ${OUTPUT_PREFIX}.bki
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> ${OUTPUT_PREFIX}.description
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trap "rm -f $TMPFILE ${OUTPUT_PREFIX}.bki.$$ ${OUTPUT_PREFIX}.description.$$" 0 1 2 3 15
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# Get NAMEDATALEN from postgres_ext.h
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@ -136,6 +141,8 @@ done
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INDEXMAXKEYS2=`expr $INDEXMAXKEYS '*' 2` || exit
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INDEXMAXKEYS4=`expr $INDEXMAXKEYS '*' 4` || exit
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touch ${OUTPUT_PREFIX}.description.$$
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# ----------------
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# strip comments and trash from .h before we generate
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# the .bki file...
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@ -360,11 +367,15 @@ END {
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reln_open = 0;
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}
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}
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' "descriptionfile=${OUTPUT_PREFIX}.description" > $TMPFILE || exit
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' "descriptionfile=${OUTPUT_PREFIX}.description.$$" > $TMPFILE || exit
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echo "# PostgreSQL $major_version" >${OUTPUT_PREFIX}.bki.$$
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$CPP $BKIOPTS $TMPFILE | \
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sed -e '/^[ ]*$/d' \
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-e 's/[ ][ ]*/ /g' > ${OUTPUT_PREFIX}.bki || exit
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-e 's/[ ][ ]*/ /g' >>${OUTPUT_PREFIX}.bki.$$ || exit
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mv ${OUTPUT_PREFIX}.bki.$$ ${OUTPUT_PREFIX}.bki || exit
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mv ${OUTPUT_PREFIX}.description.$$ ${OUTPUT_PREFIX}.description || exit
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exit 0
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@ -1,17 +1,17 @@
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#! /bin/sh
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#-------------------------------------------------------------------------
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#
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# initdb creates (initializes) a Postgres database cluster (site,
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# initdb creates (initializes) a PostgreSQL database cluster (site,
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# instance, installation, whatever). A database cluster is a
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# collection of Postgres databases all managed by the same postmaster.
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# collection of PostgreSQL databases all managed by the same postmaster.
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#
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# To create the database cluster, we create the directory that contains
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# all its data, create the files that hold the global tables, create
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# a few other control files for it, and create one database: the
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# template database.
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#
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# The template database is an ordinary Postgres database. Its data
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# never changes, though. It exists to make it easy for Postgres to
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# The template database is an ordinary PostgreSQL database. Its data
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# never changes, though. It exists to make it easy for PostgreSQL to
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# create other databases -- it just copies.
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#
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# Optionally, we can skip creating the complete database cluster and
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@ -23,7 +23,7 @@
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#
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# Copyright (c) 1994, Regents of the University of California
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#
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# $Header: /cvsroot/pgsql/src/bin/initdb/Attic/initdb.sh,v 1.106 2000/10/22 17:55:45 pjw Exp $
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# $Header: /cvsroot/pgsql/src/bin/initdb/Attic/initdb.sh,v 1.107 2000/10/28 22:14:14 petere Exp $
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#
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#-------------------------------------------------------------------------
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@ -85,7 +85,7 @@ fi
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if echo "$0" | grep '/' > /dev/null 2>&1
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then
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# explicit dir name given
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PGPATH=`echo $0 | sed 's,/[^/]*$,,'` # (dirname command is not portable)
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self_path=`echo $0 | sed 's,/[^/]*$,,'` # (dirname command is not portable)
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else
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# look for it in PATH ('which' command is not portable)
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for dir in `echo "$PATH" | sed 's/:/ /g'`
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@ -94,36 +94,52 @@ else
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[ -z "$dir" ] && dir='.'
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if [ -f "$dir/$CMDNAME" ]
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then
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PGPATH="$dir"
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self_path="$dir"
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break
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fi
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done
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fi
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if [ x"$PGPATH" = x"" ] ; then
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PGPATH=$bindir
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# Check for right version of backend. First we check for an
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# executable in the same directory is this initdb script (presuming
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# the above code worked). Then we fall back to the hard-wired bindir.
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# We do it in this order because during upgrades users might move
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# their trees to backup places, so $bindir might be inaccurate.
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if [ x"$self_path" != x"" ] \
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&& [ -x "$self_path/postgres" ] \
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&& [ x"`$self_path/postgres --version 2>/dev/null`" == x"postgres (PostgreSQL) $VERSION" ]
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then
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PGPATH=$self_path
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elif [ -x "$bindir/postgres" ]; then
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if [ x"`$bindir/postgres --version 2>/dev/null`" == x"postgres (PostgreSQL) $VERSION" ]
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then
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PGPATH=$bindir
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else
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echo "The program '$bindir/postgres' needed by $CMDNAME does not belong to"
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echo "PostgreSQL version $VERSION. Check your installation."
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exit 1
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fi
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else
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echo "The program 'postgres' is needed by $CMDNAME but was not found in"
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echo "the directory '$bindir'. Check your installation."
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exit 1
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fi
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# Check if needed programs actually exist in path
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for prog in postgres pg_id
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do
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if [ ! -x "$PGPATH/$prog" ]
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then
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echo "The program \`$prog' needed by $CMDNAME could not be found. It was"
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echo "expected at:"
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echo " $PGPATH/$prog"
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echo "If this is not the correct directory, please start $CMDNAME"
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echo "with a full search path. Otherwise make sure that the program"
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echo "was installed successfully."
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exit 1
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fi
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done
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# Now we can assume that 'pg_id' belongs to the same version as the
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# verified 'postgres' in the same directory.
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if [ ! -x "$PGPATH/pg_id" ]; then
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echo "The program 'pg_id' is needed by $CMDNAME but was not found in"
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echo "the directory '$PGPATH'. Check your installation."
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exit 1
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fi
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# Gotta wait for pg_id existence check above
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EffectiveUser=`$PGPATH/pg_id -n -u`
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if [ -z "$EffectiveUser" ]; then
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echo "Could not determine current user name. You are really hosed."
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echo "$CMDNAME: could not determine current user name"
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exit 1
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fi
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@ -275,7 +291,7 @@ fi
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if [ "$MULTIBYTE" ]
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then
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MULTIBYTEID=`$PGPATH/pg_encoding $MULTIBYTE 2> /dev/null`
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MULTIBYTEID=`$PGPATH/pg_encoding $MULTIBYTE`
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if [ "$?" -ne 0 ]
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then
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echo "$CMDNAME: pg_encoding failed"
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@ -354,6 +370,15 @@ do
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fi
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done
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for file in "$TEMPLATE1_BKI" "$GLOBAL_BKI"; do
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if [ x"`sed 1q $file`" != x"# PostgreSQL $short_version" ]; then
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echo "The input file '$file' needed by $CMDNAME does not"
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echo "belong to PostgreSQL $VERSION. Check your installation or specify the"
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echo "correct path using the -L option."
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exit 1
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fi
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done
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trap 'echo "Caught signal." ; exit_nicely' 1 2 3 15
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