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Merged VersionCheck
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Brian Fraser
247
lib/VersionCheck.pm
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247
lib/VersionCheck.pm
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@@ -0,0 +1,247 @@
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# This program is copyright 2012 Percona Inc.
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# Feedback and improvements are welcome.
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#
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# THIS PROGRAM IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED
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# WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
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# MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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#
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# This program is free software; you can redistribute it and/or modify it under
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# the terms of the GNU General Public License as published by the Free Software
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# Foundation, version 2; OR the Perl Artistic License. On UNIX and similar
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# systems, you can issue `man perlgpl' or `man perlartistic' to read these
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# licenses.
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#
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# You should have received a copy of the GNU General Public License along with
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# this program; if not, write to the Free Software Foundation, Inc., 59 Temple
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# Place, Suite 330, Boston, MA 02111-1307 USA.
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# ###########################################################################
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# VersionCheck package
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# ###########################################################################
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{
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# Package: VersionCheck
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# VersionCheck checks program versions with Percona.
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package VersionCheck;
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use strict;
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use warnings FATAL => 'all';
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use English qw(-no_match_vars);
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use constant PTDEBUG => $ENV{PTDEBUG} || 0;
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use Data::Dumper;
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$Data::Dumper::Indent = 1;
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$Data::Dumper::Sortkeys = 1;
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$Data::Dumper::Quotekeys = 0;
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sub new {
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my ($class, %args) = @_;
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return bless {}, $class;
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}
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sub parse_server_response {
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my ($self, %args) = @_;
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my @required_args = qw(response);
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foreach my $arg ( @required_args ) {
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die "I need a $arg arugment" unless $args{$arg};
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}
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my ($response) = @args{@required_args};
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PTDEBUG && _d('Server response:', $response);
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my %items = map {
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my ($item, $type, $vars) = split(";", $_);
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my (@vars) = split(",", ($vars || ''));
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$item => {
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item => $item,
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type => $type,
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vars => \@vars,
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};
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} split("\n", $response);
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PTDEBUG && _d('Items:', Dumper(\%items));
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return \%items;
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}
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sub get_versions {
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my ($self, %args) = @_;
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my @required_args = qw(items);
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foreach my $arg ( @required_args ) {
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die "I need a $arg arugment" unless $args{$arg};
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}
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my ($items) = @args{@required_args};
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my $dbh = $args{dbh}; # optional
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my %versions;
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foreach my $item ( values %$items ) {
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next unless $self->valid_item($item);
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eval {
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my $func = 'get_' . $item->{type};
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my $version = $self->$func(
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item => $item,
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dbh => $dbh,
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);
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if ( $version ) {
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chomp $version;
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$versions{$item->{item}} = $version;
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}
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};
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if ( $EVAL_ERROR ) {
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PTDEBUG && _d('Error getting version for', Dumper($item), $EVAL_ERROR);
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}
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}
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return \%versions;
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}
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sub valid_item {
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my ($self, $item) = @_;
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return 1;
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}
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sub get_os {
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my ($self) = @_;
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chomp(my $platform = `uname -s`);
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PTDEBUG && _d('platform:', $platform);
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return unless $platform;
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chomp(my $lsb_release
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= `which lsb_release 2>/dev/null | awk '{print \$1}'` || '');
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PTDEBUG && _d('lsb_release:', $lsb_release);
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my $release = "";
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if ( $platform eq 'Linux' ) {
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if ( -f "/etc/fedora-release" ) {
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$release = `cat /etc/fedora-release`;
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}
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elsif ( -f "/etc/redhat-release" ) {
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$release = `cat /etc/redhat-release`;
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}
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elsif ( -f "/etc/system-release" ) {
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$release = `cat /etc/system-release`;
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}
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elsif ( $lsb_release ) {
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$release = `$lsb_release -ds`;
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}
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elsif ( -f "/etc/lsb-release" ) {
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$release = `grep DISTRIB_DESCRIPTION /etc/lsb-release`;
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$release =~ s/^\w+="([^"]+)".+/$1/;
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}
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elsif ( -f "/etc/debian_version" ) {
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chomp(my $rel = `cat /etc/debian_version`);
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$release = "Debian $rel";
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if ( -f "/etc/apt/sources.list" ) {
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chomp(my $code_name = `awk '/^deb/ {print \$3}' /etc/apt/sources.list | awk -F/ '{print \$1}'| awk 'BEGIN {FS="|"} {print \$1}' | sort | uniq -c | sort -rn | head -n1 | awk '{print \$2}'`);
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$release .= " ($code_name)" if $code_name;
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}
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}
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elsif ( `ls /etc/*release 2>/dev/null` ) {
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if ( `grep DISTRIB_DESCRIPTION /etc/*release 2>/dev/null` ) {
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$release = `grep DISTRIB_DESCRIPTION /etc/*release | head -n1`;
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}
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else {
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$release = `cat /etc/*release | head -n1`;
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}
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}
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}
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elsif ( $platform =~ m/^(BSD|Darwin)$/ ) {
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my $rel = `uname -r`;
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$release = "$platform $rel";
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}
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elsif ( $platform eq "SunOS" ) {
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my $rel = `head -n1 /etc/release` || `uname -r`;
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$release = "$platform $rel";
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}
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if ( !$release ) {
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PTDEBUG && _d('Failed to get the release, using platform');
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$release = $platform;
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}
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chomp($release);
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PTDEBUG && _d('OS version =', $release);
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return $release;
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}
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sub get_perl_variable {
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my ($self, %args) = @_;
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my $item = $args{item};
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return unless $item;
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# Can't just stringify $PERL_VERSION because on 5.8 it doesn't work.
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# So %vd coerces the version into a string on 5.8+.
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if ( $item->{item} eq 'Perl' ) {
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my $version = sprintf '%vd', $PERL_VERSION;
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PTDEBUG && _d('Perl version', $version);
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return $version;
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}
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# If there's a var, then its an explicit Perl variable name to get,
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# else the item name is an implicity Perl module name to which we
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# append ::VERSION to get the module's version.
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my $var = $item->{vars}->[0] || ($item->{item} . '::VERSION');
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my $version = do { no strict; ${*{$var}}; };
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PTDEBUG && _d('Perl version for', $var, '=', "$version");
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# Explicitly stringify this else $PERL_VERSION will return
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# as a version object.
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return $version ? "$version" : $version;
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}
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sub get_mysql_variable {
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my $self = shift;
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return $self->_get_from_mysql(
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show => 'VARIABLES',
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@_,
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);
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}
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# This isn't implemented yet. It's easy to do (TYPE=mysql_status),
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# but it may be overkill.
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#sub get_mysql_status {
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# my $self = shift;
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# return $self->_get_from_mysql(
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# show => 'STATUS',
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# @_,
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# );
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#}
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sub _get_from_mysql {
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my ($self, %args) = @_;
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my $show = $args{show};
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my $item = $args{item};
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my $dbh = $args{dbh};
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return unless $show && $item && $dbh;
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local $dbh->{FetchHashKeyName} = 'NAME_lc';
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my $sql = qq/SHOW $show/;
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PTDEBUG && _d($sql);
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my $rows = $dbh->selectall_hashref($sql, 'variable_name');
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my @versions;
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foreach my $var ( @{$item->{vars}} ) {
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$var = lc($var);
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my $version = $rows->{$var}->{value};
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PTDEBUG && _d('MySQL version for', $item->{item}, '=', $version);
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push @versions, $version;
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}
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return join(' ', @versions);
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}
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sub _d {
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my ($package, undef, $line) = caller 0;
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@_ = map { (my $temp = $_) =~ s/\n/\n# /g; $temp; }
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map { defined $_ ? $_ : 'undef' }
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@_;
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print STDERR "# $package:$line $PID ", join(' ', @_), "\n";
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}
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1;
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}
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# ###########################################################################
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# End VersionCheck package
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# ###########################################################################
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@@ -85,7 +85,7 @@ EXIT_STATUS=0
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TEST_CMD="${TEST_CMD:-"prove -r t/"}"
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(
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$TEST_CMD
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eval $TEST_CMD
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)
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EXIT_STATUS=$(($? | 0))
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148
t/lib/VersionCheck.t
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148
t/lib/VersionCheck.t
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@@ -0,0 +1,148 @@
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#!/usr/bin/perl
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BEGIN {
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die "The PERCONA_TOOLKIT_BRANCH environment variable is not set.\n"
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unless $ENV{PERCONA_TOOLKIT_BRANCH} && -d $ENV{PERCONA_TOOLKIT_BRANCH};
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unshift @INC, "$ENV{PERCONA_TOOLKIT_BRANCH}/lib";
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};
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use strict;
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use warnings FATAL => 'all';
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use English qw(-no_match_vars);
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use Test::More;
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use Data::Dumper;
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use VersionCheck;
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use DSNParser;
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use Sandbox;
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use PerconaTest;
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my $dp = new DSNParser(opts=>$dsn_opts);
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my $sb = new Sandbox(basedir => '/tmp', DSNParser => $dp);
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my $dbh = $sb->get_dbh_for('master');
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my $vc = VersionCheck->new();
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sub test_v {
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my (%args) = @_;
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my $items = $vc->parse_server_response(
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response => $args{response},
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);
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is_deeply(
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$items,
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$args{items},
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"$args{name} items"
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);
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my $versions = $vc->get_versions(
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items => $items,
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dbh => $dbh,
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);
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diag(Dumper($versions));
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is_deeply(
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$versions,
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$args{versions},
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"$args{name} versions"
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);
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# Perl 5.8 $^V/$PERL_VERSION is borked, make sure
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# the module is coping with it.
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if ( $items->{Perl} ) {
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like(
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$versions->{Perl},
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q/\d+\.\d+.\d+/,
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"Perl version looks like a version"
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);
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}
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return;
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}
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test_v(
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name => "Perl version",
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response => "Perl;perl_variable;PERL_VERSION\n",
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items => {
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'Perl' => {
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item => 'Perl',
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type => 'perl_variable',
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vars => [qw(PERL_VERSION)],
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},
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},
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versions => {
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'Perl' => sprintf('%vd', $PERL_VERSION),
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},
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);
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test_v(
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name => "perl_variable (no args)",
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response => "Data::Dumper;perl_variable\n",
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items => {
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'Data::Dumper' => {
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item => 'Data::Dumper',
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type => 'perl_variable',
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vars => [],
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},
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},
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versions => {
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'Data::Dumper' => $Data::Dumper::VERSION,
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},
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);
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SKIP: {
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skip "Cannot cannot to sandbox master", 2 unless $dbh;
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my (undef, $mysql_version)
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= $dbh->selectrow_array("SHOW VARIABLES LIKE 'version'");
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my (undef, $mysql_distro)
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= $dbh->selectrow_array("SHOW VARIABLES LIKE 'version_comment'");
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test_v(
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name => "mysql_variable",
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response => "MySQL;mysql_variable;version_comment,version\n",
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items => {
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'MySQL' => {
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item => 'MySQL',
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type => 'mysql_variable',
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vars => [qw(version_comment version)],
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},
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},
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versions => {
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'MySQL' => "$mysql_distro $mysql_version",
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},
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);
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}
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# I can't think of a way to make these 2 OS tests more specific
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# since the test env doesn't know what OS its running on. We
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# at least know that an OS should have these two things: a word
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# and version with at least major and minor numbers.
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my $os = $vc->get_os;
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diag($os);
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like(
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$os,
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qr/^\w+/,
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"OS has some kind of name"
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);
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like(
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$os,
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qr/\d+\.\d+/,
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"OS has some kind of version"
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);
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# get_os() runs a lot of shell cmds that include newlines,
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# but the client's response can't have newlines in the versions
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# becuase newlines separate items.
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ok(
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$os !~ m/\n$/,
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"Newline stripped from OS"
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);
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# #############################################################################
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# Done.
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# #############################################################################
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ok($sb->ok(), "Sandbox servers") or BAIL_OUT(__FILE__ . " broke the sandbox") if $dbh;
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done_testing;
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exit;
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