729 lines
19 KiB
Perl
729 lines
19 KiB
Perl
#!/usr/bin/env perl
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# IBM(c) 2007 EPL license http://www.eclipse.org/legal/epl-v10.html
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package xCAT::BuildKitUtils;
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BEGIN
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{
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$::XCATROOT = $ENV{'XCATROOT'} ? $ENV{'XCATROOT'} : '/opt/xcat';
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}
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# if AIX - make sure we include perl 5.8.2 in INC path.
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# Needed to find perl dependencies shipped in deps tarball.
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if ($^O =~ /^aix/i) {
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unshift(@INC, qw(/usr/opt/perl5/lib/5.8.2/aix-thread-multi /usr/opt/perl5/lib/5.8.2 /usr/opt/perl5/lib/site_perl/5.8.2/aix-thread-multi /usr/opt/perl5/lib/site_perl/5.8.2));
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}
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use lib "$::XCATROOT/lib/perl";
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use POSIX qw(ceil);
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use File::Path;
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use Socket;
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use strict;
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use Symbol;
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my $sha1support;
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if ( -f "/etc/debian_version" ) {
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$sha1support = eval {
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require Digest::SHA;
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1;
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};
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}
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else {
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$sha1support = eval {
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require Digest::SHA1;
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1;
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};
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}
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use IPC::Open3;
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use IO::Select;
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use warnings "all";
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our @ISA = qw(Exporter);
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#-------------------------------------------------------------------------------
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=head1 xCAT::BuildKitUtils
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=head2 Package Description
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This program module file, is a set of utilities used by xCAT buildkit command
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=cut
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#-------------------------------------------------------------
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#--------------------------------------------------------------------------
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=head3 get_latest_version
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Find the latest version in a list of rpms with the same basename
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Arguments:
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- the repo location
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- a list of rpms with the same basename
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Returns:
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- name of rpm
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- undef
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Example:
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my $new_d = xCAT::BuildKitUtils->get_latest_version($repodir, \@rpmlist);
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Comments:
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=cut
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#--------------------------------------------------------------------------
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sub get_latest_version
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{
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my ($class, $repodir, $rpms) = @_;
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my @rpmlist = @$rpms;
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my %localversions_hash = ();
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my %file_name_hash = ();
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my $i = 0;
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foreach my $rpm (@rpmlist)
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{
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# include path
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my $fullrpmpath = "$repodir/$rpm*";
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# get the basename, version, and release for this rpm
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my $rcmd = "rpm -qp --queryformat '%{N} %{V} %{R}\n' $repodir/$rpm";
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my $out = `$rcmd`;
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my ($rpkg, $VERSION, $RELEASE) = split(' ', $out);
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chomp $VERSION;
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chomp $RELEASE;
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$localversions_hash{$i}{'VERSION'} = $VERSION;
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$localversions_hash{$i}{'RELEASE'} = $RELEASE;
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$file_name_hash{$VERSION}{$RELEASE} = $rpm;
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$i++;
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}
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if ($i == 0)
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{
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print "error\n";
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return undef;
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}
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my $versionout = "";
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my $releaseout = "";
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$i = 0;
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foreach my $k (keys %localversions_hash)
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{
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if ($i == 0)
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{
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$versionout = $localversions_hash{$k}{'VERSION'};
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$releaseout = $localversions_hash{$k}{'RELEASE'};
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}
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# if this is a newer version/release then set them
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if ( xCAT::BuildKitUtils->testVersion($localversions_hash{$k}{'VERSION'}, ">", $versionout, $localversions_hash{$k}{'RELEASE'}, $releaseout) ) {
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$versionout = $localversions_hash{$k}{'VERSION'};
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$releaseout = $localversions_hash{$k}{'RELEASE'};
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}
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$i++;
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}
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if ($i == 0)
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{
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print "Error: Could not determine the latest version for the following list of rpms: @rpmlist\n";
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return undef;
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} else {
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return ($file_name_hash{$versionout}{$releaseout});
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}
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}
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#--------------------------------------------------------------------------
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=head3 find_latest_pkg
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Find the latest rpm package give the rpm name and a list of
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possible package locations.
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Arguments:
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- a list of package directories
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- the name of the rpm
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Returns:
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- \@foundrpmlist
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- undef
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Example:
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my $newrpm = xCAT::BuildKitUtils->find_latest_pkg(\@pkgdirs, $rpmname);
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Comments:
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=cut
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#--------------------------------------------------------------------------
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sub find_latest_pkg
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{
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my ($class, $pkgdirs, $rpmname) = @_;
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my @pkgdirlist = @$pkgdirs;
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my @rpms;
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my %foundrpm;
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# need to check each pkgdir for the rpm(s)
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# - if more than one match need to pick latest
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# find all the matches in all the directories
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foreach my $rpmdir (@pkgdirlist) {
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my $ffile = $rpmdir."/".$rpmname;
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if ( system("/bin/ls $ffile > /dev/null 2>&1") ){
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# if not then skip to next dir
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next;
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} else {
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# if so then get the details and add it to the %foundrpm hash
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my $cmd = "/bin/ls $ffile 2>/dev/null";
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my $output = `$cmd`;
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my @rpmlist = split(/\n/, $output);
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if ( scalar(@rpmlist) == 0) {
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# no rpms to check
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next;
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}
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foreach my $r (@rpmlist) {
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my $rcmd = "rpm -qp --queryformat '%{N} %{V} %{R}\n' $r*";
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my $out = `$rcmd`;
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my ($name, $fromV, $fromR) = split(' ', $out);
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chomp $fromV;
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chomp $fromR;
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# ex. {ppe_rte_man}{/tmp/rpm1/ppe_rte_man-1.3.0.5-s005a.x86_64.rpm}{version}=$fromV;
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$foundrpm{$name}{$r}{version}=$fromV;
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$foundrpm{$name}{$r}{release}=$fromR;
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#print "name=$name, full=$r, verson= $fromV, release=$fromR\n";
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}
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}
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}
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# for each unique rpm basename
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foreach my $r (keys %foundrpm ) {
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# if more than one with same basename then find the latest
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my $latestmatch="";
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foreach my $frpm (keys %{$foundrpm{$r}} ) {
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# if we already found a match in some other dir
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if ($latestmatch) {
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# then we need to figure out which is the newest
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# if the $frpm is newer than use it
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if ( xCAT::BuildKitUtils->testVersion($foundrpm{$r}{$frpm}{version}, ">", $foundrpm{$r}{$latestmatch}{version}, $foundrpm{$r}{$frpm}{release}, $foundrpm{$r}{$latestmatch}{release}) ) {
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$latestmatch = $frpm;
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}
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} else {
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$latestmatch = $frpm;
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}
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}
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push(@rpms, $latestmatch);
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}
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if (scalar(@rpms)) {
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return \@rpms;
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} else {
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return undef;
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}
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}
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#------------------------------------------------------------------------------
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=head3 testVersion
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Compare version1 and version2 according to the operator and
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return True or False.
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Arguments:
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$version1
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$operator
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$version2
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$release1
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$release2
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Returns:
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True or False
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Example:
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Comments:
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The return value is generated with the Require query of the
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rpm command.
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=cut
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#-----------------------------------------------------------------------------
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sub testVersion
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{
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my ($class, $version1, $operator, $version2, $release1, $release2) = @_;
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my @a1 = split(/\./, $version1);
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my @a2 = split(/\./, $version2);
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my $len = (scalar(@a1) > scalar(@a2) ? scalar(@a1) : scalar(@a2));
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$#a1 = $len - 1; # make the arrays the same length before appending release
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$#a2 = $len - 1;
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push @a1, split(/\./, $release1);
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push @a2, split(/\./, $release2);
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$len = (scalar(@a1) > scalar(@a2) ? scalar(@a1) : scalar(@a2));
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my $num1 = '';
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my $num2 = '';
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for (my $i = 0 ; $i < $len ; $i++)
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{
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# remove any non-numbers on the end
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if(defined($a1[$i])&&defined($a2[$i]))
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{
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my ($d1) = $a1[$i] =~ /^(\d*)/;
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my ($d2) = $a2[$i] =~ /^(\d*)/;
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my $diff = length($d1) - length($d2);
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if ($diff > 0) # pad d2
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{
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$num1 .= $d1;
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$num2 .= ('0' x $diff) . $d2;
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}
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elsif ($diff < 0) # pad d1
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{
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$num1 .= ('0' x abs($diff)) . $d1;
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$num2 .= $d2;
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}
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else # they are the same length
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{
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$num1 .= $d1;
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$num2 .= $d2;
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}
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}
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}
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# Remove the leading 0s or perl will interpret the numbers as octal
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$num1 =~ s/^0+//;
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$num2 =~ s/^0+//;
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# be sure that $num1 is not a "".
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if (length($num1) == 0) { $num1 = 0; }
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if (length($num2) == 0) { $num2 = 0; }
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if ($operator eq '=') { $operator = '=='; }
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my $bool = eval "$num1 $operator $num2";
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return $bool;
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}
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#-------------------------------------------------------------------------------
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=head3 isAIX
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returns 1 if localHost is AIX
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Arguments:
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none
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Returns:
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1 - localHost is AIX
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0 - localHost is some other platform
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Globals:
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none
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Error:
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none
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Example:
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if (xCAT::BuildKitUtils->isAIX()) { blah; }
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Comments:
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none
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=cut
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#-------------------------------------------------------------------------------
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sub isAIX
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{
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if ($^O =~ /^aix/i) { return 1; }
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else { return 0; }
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}
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#-------------------------------------------------------------------------------
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=head3 get_OS_VRMF
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Arguments:
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none
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Returns:
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v.r.m.f - if success
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undef - if error
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Example:
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my $osversion = xCAT::BuildKitUtils->get_OS_VRMF();
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Comments:
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Only implemented for AIX for now
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=cut
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#-------------------------------------------------------------------------------
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sub get_OS_VRMF
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{
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my $version;
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if (xCAT::BuildKitUtils->isAIX()) {
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my $cmd = "/usr/bin/lslpp -cLq bos.rte";
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my $output = `$cmd`;
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chomp($output);
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# The third field in the lslpp output is the VRMF
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$version = (split(/:/, $output))[2];
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# not sure if the field would ever contain more than 4 parts?
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my ($v1, $v2, $v3, $v4, $rest) = split(/\./, $version);
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$version = join(".", $v1, $v2, $v3, $v4);
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}
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return (length($version) ? $version : undef);
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}
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#-------------------------------------------------------------------------------
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=head3 isLinux
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returns 1 if localHost is Linux
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Arguments:
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none
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Returns:
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1 - localHost is Linux
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0 - localHost is some other platform
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Globals:
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none
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Error:
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none
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Example:
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if (xCAT::BuildKitUtils->isLinux()) { blah; }
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Comments:
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none
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=cut
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#-------------------------------------------------------------------------------
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sub isLinux
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{
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if ($^O =~ /^linux/i) { return 1; }
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else { return 0; }
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}
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#--------------------------------------------------------------------------------
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=head3 CreateRandomName
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Create a random file name.
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Arguments:
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Prefix of name
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Returns:
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Prefix with 8 random letters appended
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Error:
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none
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Example:
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$file = xCAT::BuildKitUtils->CreateRandomName($namePrefix);
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Comments:
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None
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=cut
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#-------------------------------------------------------------------------------
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sub CreateRandomName
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{
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my ($class, $name) = @_;
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my $nI;
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for ($nI = 0 ; $nI < 8 ; $nI++)
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{
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my $char = ('a' .. 'z', 'A' .. 'Z')[int(rand(52)) + 1];
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$name .= $char;
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}
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$name;
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}
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#-----------------------------------------------------------------------
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=head3
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close_delete_file.
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Arguments:
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file handle,filename
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Returns:
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none
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Globals:
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none
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Error:
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undef
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Example:
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xCAT::BuildKitUtils->close_delete_file($file_handle, $file_name);
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Comments:
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none
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=cut
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#------------------------------------------------------------------------
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sub close_delete_file
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{
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my ($class, $file_handle, $file_name) = @_;
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close $file_handle;
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unlink($file_name);
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}
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#-------------------------------------------------------------------------------
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=head3 CheckVersion
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Checks the two versions numbers to see which one is greater.
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Arguments:
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ver_a the version number in format of d.d.d.d...
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ver_b the version number in format of d.d.d.d...
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Returns:
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1 if ver_a is greater than ver_b
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0 if ver_a is eaqual to ver_b
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-1 if ver_a is smaller than ver_b
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=cut
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#-------------------------------------------------------------------------------
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sub CheckVersion
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{
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my $ver_a = shift;
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if ($ver_a =~ /xCAT::BuildKitUtils/)
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{
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$ver_a = shift;
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}
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my $ver_b = shift;
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my @a = split(/\./, $ver_a);
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my @b = split(/\./, $ver_b);
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my $len_a = @a;
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my $len_b = @b;
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my $index = 0;
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my $max_index = ($len_a > $len_b) ? $len_a : $len_b;
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for ($index = 0 ; $index <= $max_index ; $index++)
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{
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my $val_a = ($len_a < $index) ? 0 : $a[$index];
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my $val_b = ($len_b < $index) ? 0 : $b[$index];
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if ($val_a > $val_b) { return 1; }
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if ($val_a < $val_b) { return -1; }
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}
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return 0;
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}
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#-------------------------------------------------------------------------------
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=head3 osver
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Returns the os and version of the System you are running on
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Arguments:
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none
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Returns:
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0 - ok
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Globals:
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none
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Error:
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1 error
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Example:
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my $os=(xCAT::BuildKitUtils->osver{ ...}
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Comments:
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none
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=cut
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#-------------------------------------------------------------------------------
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sub osver
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{
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my $osver = "unknown";
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my $os = '';
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my $ver = '';
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my $line = '';
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my @lines;
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my $relfile;
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if (-f "/etc/redhat-release")
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{
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open($relfile,"<","/etc/redhat-release");
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$line = <$relfile>;
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close($relfile);
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chomp($line);
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$os = "rh";
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$ver=$line;
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# $ver=~ s/\.//;
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$ver =~ s/[^0-9]*([0-9.]+).*/$1/;
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if ($line =~ /AS/) { $os = 'rhas' }
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elsif ($line =~ /ES/) { $os = 'rhes' }
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elsif ($line =~ /WS/) { $os = 'rhws' }
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elsif ($line =~ /Server/) { $os = 'rhels' }
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elsif ($line =~ /Client/) { $os = 'rhel' }
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elsif (-f "/etc/fedora-release") { $os = 'rhfc' }
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}
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elsif (-f "/etc/SuSE-release")
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{
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open($relfile,"<","/etc/SuSE-release");
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@lines = <$relfile>;
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close($relfile);
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chomp(@lines);
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if (grep /SLES|Enterprise Server/, @lines) { $os = "sles" }
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if (grep /SLEC/, @lines) { $os = "slec" }
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$ver = $lines[0];
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$ver =~ s/\.//;
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$ver =~ s/[^0-9]*([0-9]+).*/$1/;
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my $minorver;
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if (grep /PATCHLEVEL/, $lines[2]) {
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$minorver = $lines[2];
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$minorver =~ s/PATCHLEVEL[^0-9]*([0-9]+).*/$1/;
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}
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$ver = $ver . ".$minorver" if ( $minorver );
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}
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elsif (-f "/etc/UnitedLinux-release")
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{
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$os = "ul";
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open($relfile,"<","/etc/UnitedLinux-release");
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$ver = <$relfile>;
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close($relfile);
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$ver =~ tr/\.//;
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$ver =~ s/[^0-9]*([0-9]+).*/$1/;
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}
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elsif (-f "/etc/lsb-release") # Possibly Ubuntu
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{
|
|
|
|
if (open($relfile,"<","/etc/lsb-release")) {
|
|
my @text = <$relfile>;
|
|
close($relfile);
|
|
chomp(@text);
|
|
my $distrib_id = '';
|
|
my $distrib_rel = '';
|
|
|
|
foreach (@text) {
|
|
if ( $_ =~ /^\s*DISTRIB_ID=(.*)$/ ) {
|
|
$distrib_id = $1; # last DISTRIB_ID value in file used
|
|
} elsif ( $_ =~ /^\s*DISTRIB_RELEASE=(.*)$/ ) {
|
|
$distrib_rel = $1; # last DISTRIB_RELEASE value in file used
|
|
}
|
|
}
|
|
|
|
if ( $distrib_id =~ /^(Ubuntu|"Ubuntu")\s*$/ ) {
|
|
$os = "ubuntu";
|
|
|
|
if ( $distrib_rel =~ /^(.*?)\s*$/ ) { # eliminate trailing blanks, if any
|
|
$distrib_rel = $1;
|
|
}
|
|
if ( $distrib_rel =~ /^"(.*?)"$/ ) { # eliminate enclosing quotes, if any
|
|
$distrib_rel = $1;
|
|
}
|
|
$ver = $distrib_rel;
|
|
}
|
|
}
|
|
}
|
|
elsif (-f "/etc/debian_version") #possible debian
|
|
{
|
|
if (open($relfile, "<", "/etc/issue")){
|
|
$line = <$relfile>;
|
|
if ( $line =~ /debian.*/i){
|
|
$os = "debian";
|
|
my $relfile1;
|
|
open($relfile1, "<", "/etc/debian_version");
|
|
$ver = <$relfile1>;
|
|
close($relfile1);
|
|
}
|
|
close($relfile);
|
|
}
|
|
}
|
|
$os = "$os" . "," . "$ver";
|
|
return ($os);
|
|
}
|
|
|
|
#-----------------------------------------------------------------------------
|
|
=head3 acquire_lock
|
|
Get a lock on an arbirtrary named resource. For now, this is only across the scope of one service node/master node, an argument may be added later if/when 'global' locks are supported. This call will block until the lock is free.
|
|
Arguments:
|
|
A string name for the lock to acquire
|
|
Returns:
|
|
false on failure
|
|
A reference for the lock being held.
|
|
=cut
|
|
#-----------------------------------------------------------------------------
|
|
sub acquire_lock {
|
|
my $lock_name = shift;
|
|
use File::Path;
|
|
mkpath("/var/lock/xcat/");
|
|
use Fcntl ":flock";
|
|
my $tlock;
|
|
$tlock->{path}="/var/lock/xcat/".$lock_name;
|
|
open($tlock->{fd},">",$tlock->{path}) or return undef;
|
|
unless ($tlock->{fd}) { return undef; }
|
|
flock($tlock->{fd},LOCK_EX) or return undef;
|
|
return $tlock;
|
|
}
|
|
|
|
#---------------------
|
|
=head3 release_lock
|
|
Release an acquired lock
|
|
Arguments:
|
|
reference to lock
|
|
Returns:
|
|
false on failure, true on success
|
|
=cut
|
|
#-----------------------------------------------------------------------------
|
|
sub release_lock {
|
|
my $tlock = shift;
|
|
unlink($tlock->{path});
|
|
flock($tlock->{fd},LOCK_UN);
|
|
close($tlock->{fd});
|
|
}
|
|
|
|
#-------------------------------------------------------------------------------
|
|
|
|
=head3 get_unique_members
|
|
Description:
|
|
Return an array which have unique members
|
|
|
|
Arguments:
|
|
origarray: the original array to be treated
|
|
Returns:
|
|
Return an array, which contains unique members.
|
|
Globals:
|
|
none
|
|
Error:
|
|
none
|
|
Example:
|
|
my @new_array = xCAT::BuildKitUtils::get_unique_members(@orig_array);
|
|
Comments:
|
|
|
|
=cut
|
|
|
|
#-------------------------------------------------------------------------------
|
|
sub get_unique_members
|
|
{
|
|
my @orig_array = @_;
|
|
my %tmp_hash = ();
|
|
for my $ent (@orig_array)
|
|
{
|
|
$tmp_hash{$ent} = 1;
|
|
}
|
|
return keys %tmp_hash;
|
|
}
|
|
|
|
#-------------------------------------------------------------------------------
|
|
|
|
=head3 full_path
|
|
Description:
|
|
Convert the relative path to full path.
|
|
|
|
Arguments:
|
|
relpath: relative path
|
|
cwdir: current working directory, use the cwd() if not specified
|
|
Returns:
|
|
Return the full path
|
|
NULL - Failed to get the full path.
|
|
Globals:
|
|
none
|
|
Error:
|
|
none
|
|
Example:
|
|
my $fp = xCAT::BuildKitUtils::full_path('./test', '/home/guest');
|
|
Comments:
|
|
|
|
=cut
|
|
|
|
#-------------------------------------------------------------------------------
|
|
sub full_path
|
|
{
|
|
my ($class, $relpath, $cwdir) = @_;
|
|
|
|
my $fullpath;
|
|
|
|
if (!$cwdir) { #cwdir is not specified
|
|
$fullpath = Cwd::abs_path($relpath);
|
|
} else {
|
|
$fullpath = $cwdir . "/$relpath";
|
|
}
|
|
|
|
return $fullpath;
|
|
}
|
|
|
|
1;
|