92 lines
3.2 KiB
Perl
92 lines
3.2 KiB
Perl
#!/usr/bin/perl
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###############################################################################
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# Pandora FMS Schema comparison
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###############################################################################
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# Copyright (c) 2015 Artica Soluciones Tecnologicas S.L
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; version 2
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,USA
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###############################################################################
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use strict;
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use warnings;
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################################################################################
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# Parse the given schema file and store the found schema in a hash.
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################################################################################
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sub parse_schema($) {
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my ($schema_file) = @_;
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open(SCHEMA, $schema_file) or die("Error opening schema file $schema_file: $!\n");
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my $schema_hash = {};
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while(my $line = <SCHEMA>) {
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if($line =~ m/^\s*CREATE\s+TABLE[^a-z]+([a-z_]+)/) {
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my $table = $1;
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while(my $line = <SCHEMA>) {
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next if ($line =~ m/^\s*--/); # Skip comments.
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last if ($line =~ m/;\s*$/); # End of the definition.
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if ($line =~ m/^["`'\s]+([a-z_][^"`'\s]+)["`'\s]+/) {
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$schema_hash->{$table}->{$1} = '';
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}
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}
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}
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}
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close(SCHEMA);
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return $schema_hash;
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}
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################################################################################
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# Show tables and columns present in schema 1 but not in schema 2.
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################################################################################
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sub diff_schemas($$$$) {
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my ($schema_file_1, $schema_file_2, $schema_1, $schema_2) = @_;
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# Look for differences.
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while (my ($table, $columns) = each(%{$schema_1})) {
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# Check tables.
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if (!defined($schema_2->{$table})) {
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print "> Table $table defined in $schema_file_1 but not in $schema_file_2.\n";
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next;
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}
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# Check columns.
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foreach my $column (keys(%{$columns})) {
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if (!defined($schema_2->{$table}->{$column})) {
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print "> Column $column on table $table defined in $schema_file_1 but not in $schema_file_2.\n";
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next;
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}
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}
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}
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}
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################################################################################
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################################################################################
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# Main.
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################################################################################
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################################################################################
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# Check command line parameters.
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if ($#ARGV != 1) {
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die("Usage: $0 <SQL file 1> <SQL file 2>\n\n");
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}
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my ($sql_file_1, $sql_file_2) = @ARGV;
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# Parse the schema files.
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my $schema_1 = parse_schema($sql_file_1);
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my $schema_2 = parse_schema($sql_file_2);
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# Diff the schemas.
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diff_schemas($sql_file_1, $sql_file_2, $schema_1, $schema_2);
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diff_schemas($sql_file_2, $sql_file_1, $schema_2, $schema_1);
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