mirror of
https://git.osgeo.org/gitea/postgis/postgis
synced 2024-10-24 00:52:40 +00:00
113 lines
2.3 KiB
Perl
Executable file
113 lines
2.3 KiB
Perl
Executable file
#/bin/sh
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eval "exec perl -w $0 $@"
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if (0);
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use strict;
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($#ARGV == 0) || die "Usage: perl postgis_funxupgrade.pl <postgis.sql>\nCreates a new SQL script to upgrade all of the PostGIS functions.\n";
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my $NEWVERSION = "UNDEF";
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print "BEGIN;\n";
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open( INPUT, $ARGV[0] ) || die "Couldn't open file: $ARGV[0]\n";
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FUNC:
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while(<INPUT>)
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{
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if (m/^create or replace function postgis_scripts_installed()/i)
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{
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while(<INPUT>)
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{
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if ( m/SELECT .'(\d\.\d\.\d).'::text/i )
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{
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$NEWVERSION = $1;
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last FUNC;
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}
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}
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}
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}
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while(<DATA>)
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{
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s/NEWVERSION/$NEWVERSION/g;
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print;
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}
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close(INPUT); open( INPUT, $ARGV[0] ) || die "Couldn't open file: $ARGV[0]\n";
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while(<INPUT>)
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{
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my $checkit = 0;
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if (m/^create or replace function/i)
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{
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$checkit = 1 if m/postgis_scripts_installed()/i;
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print $_;
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while(<INPUT>)
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{
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if ( $checkit && m/SELECT .'(\d\.\d\.\d).'::text/i )
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{
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$NEWVERSION = $1;
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}
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print $_;
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last if m/^\s*LANGUAGE '/;
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}
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}
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# # This code handles aggregates by dropping and recreating them.
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# # The DROP would fail on aggregates as they would not exist
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# # in old postgis installations, thus we avoid this until we
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# # find a better strategy.
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#
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# if (m/^create aggregate (.*) *\(/i)
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# {
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# my $aggname = $1;
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# my $basetype = 'unknown';
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# my $def = $_;
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# while(<INPUT>)
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# {
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# $def .= $_;
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# $basetype = $1 if (m/basetype *= *([^,]*) *,/);
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# last if m/\);/;
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# }
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# print "DROP AGGREGATE $aggname($basetype);\n";
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# print "$def";
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# }
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}
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close( INPUT );
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print "COMMIT;\n";
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1;
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__END__
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CREATE OR REPLACE FUNCTION postgis_script_version_check()
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RETURNS text
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AS '
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DECLARE
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old_scripts text;
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new_scripts text;
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old_majmin text;
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new_majmin text;
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BEGIN
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SELECT into old_scripts postgis_scripts_installed();
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SELECT into new_scripts ''NEWVERSION'';
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SELECT into old_majmin substring(old_scripts from ''[^\.]*\.[^\.]*'');
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SELECT into new_majmin substring(new_scripts from ''[^\.]*\.[^\.]*'');
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IF old_majmin != new_majmin THEN
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RAISE EXCEPTION ''Scripts upgrade from version % to version % requires a dump/reload. See postgis manual for instructions'', old_scripts, new_scripts;
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ELSE
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RETURN ''Scripts versions checked for upgrade: ok'';
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END IF;
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END
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'
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LANGUAGE 'plpgsql';
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SELECT postgis_script_version_check();
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DROP FUNCTION postgis_script_version_check();
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