d24431934e
git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@14202 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd
753 lines
19 KiB
Perl
753 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 = eval {
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require Digest::SHA1;
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1;
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};
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use IPC::Open3;
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use IO::Select;
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use xCAT::GlobalDef;
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eval {
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require xCAT::RemoteShellExp;
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};
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use warnings "all";
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require xCAT::InstUtils;
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#require xCAT::NetworkUtils;
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require xCAT::Schema;
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#require Data::Dumper;
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require xCAT::NodeRange;
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require xCAT::Version;
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require DBI;
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our @ISA = qw(Exporter);
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our @EXPORT_OK = qw(genpassword runcmd3);
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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 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) ? $version : undef);
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}
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#----------------------------------------------------------------------------
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=head3 testversion
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Compare version1 and version2 according to the operator and
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return True or False.
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Arguments:
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$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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if (BuildKitUtils->testversion ( $ins_ver,
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"<",
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$req_ver,
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$ins_rel,
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$req_rel)){ blah; }
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Comments:
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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 ; $i++)
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{
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my ($d1) = $a1[$i] =~ /^(\d*)/; # remove any non-numbers on the end
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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 .= $d2;
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}
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}
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# Remove the leading 0s or perl will interpret the numbers as octal
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$num1 =~ s/^0+//;
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$num2 =~ s/^0+//;
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#SLES Changes ??
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# if $num1="", the "eval '$num1 $operator $num2'" will fail.
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# So MUST BE 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) { $num2 = 0; }
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#End of SLES Changes
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if ($operator eq '=') { $operator = '=='; }
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my $bool = eval "$num1 $operator $num2";
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if (length($@))
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{
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# error msg ?
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}
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return $bool;
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}
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#-------------------------------------------------------------------------------
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=head3 isLinux
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returns 1 if localHost is Linux
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Arguments:
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none
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Returns:
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1 - localHost is Linux
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0 - localHost is some other platform
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Globals:
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none
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Error:
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none
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Example:
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if (xCAT::BuildKitUtils->isLinux()) { blah; }
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Comments:
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none
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=cut
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#-------------------------------------------------------------------------------
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sub isLinux
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{
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if ($^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 runcmd3
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Run the specified command with optional input and return stderr, stdout, and exit code
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Arguments:
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command=>[] - Array reference of command to run
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input=>[] or string - Data to send to stdin of process like piping input
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Returns:
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{ exitcode => number, output=> $string, errors => string }
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=cut
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sub runcmd3 { #a proper runcmd that indpendently returns stdout, stderr, pid and accepts a stdin
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my %args = @_;
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my @indata;
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my $output;
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my $errors;
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if ($args{input}) {
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if (ref $args{input}) { #array ref
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@indata = @{$args{input}};
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} else { #just a string
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@indata=($args{input});
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}
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}
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my @cmd;
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if (ref $args{command}) {
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@cmd = @{$args{command}};
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} else {
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@cmd = ($args{command});
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}
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my $cmdin;
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my $cmdout;
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my $cmderr = gensym;
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my $cmdpid = open3($cmdin,$cmdout,$cmderr,@cmd);
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my $cmdsel = IO::Select->new($cmdout,$cmderr);
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foreach (@indata) {
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print $cmdin $_;
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}
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close($cmdin);
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my @handles;
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while ($cmdsel->count()) {
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@handles = $cmdsel->can_read();
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foreach (@handles) {
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my $line;
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my $done = sysread $_,$line,180;
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if ($done) {
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if ($_ eq $cmdout) {
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$output .= $line;
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} else {
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$errors .= $line;
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}
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} else {
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$cmdsel->remove($_);
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close($_);
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}
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}
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}
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waitpid($cmdpid,0);
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my $exitcode = $? >> 8;
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return { 'exitcode' => $exitcode, 'output' => $output, 'errors' => $errors }
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}
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#-------------------------------------------------------------------------------
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=head3 runcmd
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Run the given cmd and return the output in an array (already chopped).
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Alternately, if this function is used in a scalar context, the output
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is joined into a single string with the newlines separating the lines.
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Arguments:
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command, exitcode, reference to output, streaming mode
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Returns:
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see below
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Globals:
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$::RUNCMD_RC , $::CALLBACK
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Error:
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Normally, if there is an error running the cmd,it will display the
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error and exit with the cmds exit code, unless exitcode
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is given one of the following values:
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0: display error msg, DO NOT exit on error, but set
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$::RUNCMD_RC to the exit code.
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-1: DO NOT display error msg and DO NOT exit on error, but set
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$::RUNCMD_RC to the exit code.
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-2: DO the default behavior (display error msg and exit with cmds
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exit code.
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number > 0: Display error msg and exit with the given code
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Example:
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my $outref = xCAT::BuildKitUtils->runcmd($cmd, -2, 1);
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$::CALLBACK= your callback (required for streaming from plugins)
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my $outref = xCAT::BuildKitUtils->runcmd($cmd,-2, 1, 1); streaming
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Comments:
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If refoutput is true, then the output will be returned as a
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reference to an array for efficiency.
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=cut
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#-------------------------------------------------------------------------------
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sub runcmd
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{
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my ($class, $cmd, $exitcode, $refoutput, $stream) = @_;
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$::RUNCMD_RC = 0;
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# redirect stderr to stdout
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if (!($cmd =~ /2>&1$/)) { $cmd .= ' 2>&1'; }
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my $outref = [];
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if (!defined($stream) || (length($stream) == 0)) { # do not stream
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@$outref = `$cmd`;
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} else { # streaming mode
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my @cmd;
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push @cmd,$cmd;
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my $rsp = {};
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my $output;
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my $errout;
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open (PIPE, "$cmd |");
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while (<PIPE>) {
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if ($::CALLBACK){
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$rsp->{data}->[0] = $_;
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$::CALLBACK->($rsp);
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} else {
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xCAT::MsgUtils->message("D", "$_");
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}
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$output .= $_;
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}
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# store the return string
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push @$outref,$output;
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}
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# now if not streaming process errors
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if (($?) && (!defined($stream)))
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{
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$::RUNCMD_RC = $? >> 8;
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my $displayerror = 1;
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my $rc;
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if (defined($exitcode) && length($exitcode) && $exitcode != -2)
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{
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if ($exitcode > 0)
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{
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$rc = $exitcode;
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} # if not zero, exit with specified code
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elsif ($exitcode <= 0)
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{
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$rc = ''; # if zero or negative, do not exit
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if ($exitcode < 0) { $displayerror = 0; }
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}
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}
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else
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{
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$rc = $::RUNCMD_RC;
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} # if exitcode not specified, use cmd exit code
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if ($displayerror)
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{
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my $rsp = {};
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my $errmsg = '';
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if (xCAT::BuildKitUtils->isLinux() && $::RUNCMD_RC == 139)
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{
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$errmsg = "Segmentation fault $errmsg";
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}
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else
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{
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$errmsg = join('', @$outref);
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chomp $errmsg;
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}
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if ($::CALLBACK)
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{
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$rsp->{data}->[0] =
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"Command failed: $cmd. Error message: $errmsg.\n";
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xCAT::MsgUtils->message("E", $rsp, $::CALLBACK);
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}
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else
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{
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xCAT::MsgUtils->message("E",
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"Command failed: $cmd. Error message: $errmsg.\n");
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}
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$xCAT::BuildKitUtils::errno = 29;
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}
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}
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if ($refoutput)
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{
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chomp(@$outref);
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return $outref;
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}
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elsif (wantarray)
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{
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chomp(@$outref);
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return @$outref;
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}
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else
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{
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my $line = join('', @$outref);
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chomp $line;
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return $line;
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}
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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' }
|
|
elsif (-f "/etc/fedora-release") { $os = 'rhfc' }
|
|
}
|
|
elsif (-f "/etc/SuSE-release")
|
|
{
|
|
open($relfile,"<","/etc/SuSE-release");
|
|
@lines = <$relfile>;
|
|
close($relfile);
|
|
chomp(@lines);
|
|
if (grep /SLES|Enterprise Server/, @lines) { $os = "sles" }
|
|
if (grep /SLEC/, @lines) { $os = "slec" }
|
|
$ver = $lines[0];
|
|
$ver =~ s/\.//;
|
|
$ver =~ s/[^0-9]*([0-9]+).*/$1/;
|
|
|
|
#print "ver: $ver\n";
|
|
}
|
|
elsif (-f "/etc/UnitedLinux-release")
|
|
{
|
|
|
|
$os = "ul";
|
|
open($relfile,"<","/etc/UnitedLinux-release");
|
|
$ver = <$relfile>;
|
|
close($relfile);
|
|
$ver =~ tr/\.//;
|
|
$ver =~ s/[^0-9]*([0-9]+).*/$1/;
|
|
}
|
|
elsif (-f "/etc/lsb-release") # Possibly Ubuntu
|
|
{
|
|
|
|
if (open($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;
|
|
}
|
|
}
|
|
}
|
|
$os = "$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;
|