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#
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# ConfigArea.pm
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#
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# Written by Christopher Williams
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#
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# Description
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# -----------
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# creates and manages a configuration area
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#
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# Options
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# -------
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# ConfigArea_location
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# ConfigArea_name
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#
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# Interface
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# ---------
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# new() : A new ConfigArea object
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# location([dir]) : set/return the location of the work area
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# bootstrapfromlocation([location]) : bootstrap the object based on location.
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# no location specified - cwd used
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# return 0 if succesful 1 otherwise
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# requirementsdoc() : get set the requirements doc
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# searchlocation([startdir]) : returns the location directory. search starts
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# from cwd if not specified
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# defaultdirname() : return the default directory name string
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# scramversion() : return the scram version associated with
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# area
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# configurationdir() : return the location of the project
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# configuration directory
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# copy(location) : copy a configuration
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# copysetup(location) : copy the architecture specific tool setup
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# returns 0 if successful, 1 otherwise
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# copyenv($ref) : copy the areas environment into the hashref
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# toolbox() : return the areas toolbox object
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# - temporary
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# align() : adjust hard paths to suit local loaction
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package Configuration::ConfigArea;
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require 5.004;
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use Utilities::AddDir;
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use Utilities::Verbose;
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use Cwd;
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@ISA=qw(Utilities::Verbose);
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sub new {
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my $class=shift;
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my $self={};
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bless $self, $class;
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# data init
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$self->{admindir}=".SCRAM";
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return $self;
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}
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sub configurationdir {
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my $self=shift;
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if ( @_ ) {
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$self->{configurationdir}=shift;
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}
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if ( ! defined $self->{configurationdir} ) {
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$self->_LoadEnvFile();
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$self->{configurationdir}=$self->{ENV}{projconfigdir};
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}
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return $self->{configurationdir};
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}
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sub toolbox {
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my $self=shift;
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if ( ! defined $self->{toolbox} ) {
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$self->{toolbox}=BuildSystem::ToolBox->new($self);
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}
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return $self->{toolbox};
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}
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sub requirementsdoc {
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my $self=shift;
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if ( @_ ) {
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$self->{reqdoc}=shift;
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}
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if ( ! defined $self->{reqdoc} ) {
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$self->_LoadEnvFile();
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$self->{reqdoc}=$self->{ENV}{SCRAM_ProjReqsDoc};
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}
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return $self->{reqdoc};
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}
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sub scramversion {
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my $self=shift;
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if ( ! defined $self->{scramversion} ) {
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my $filename=$self->location()."/".$self->configurationdir()."/".
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"scram_version";
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if ( -f $filename ) {
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use FileHandle;
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$fh=FileHandle->new();
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open ($fh, "<".$filename);
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my $version=<$fh>;
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chomp $version;
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$self->{scramversion}=$version;
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undef $fh;
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}
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}
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return $self->{scramversion};
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}
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sub bootstrapfromlocation {
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my $self=shift;
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my $rv=0;
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my $location;
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if ( ! defined ($location=$self->searchlocation(@_)) ) {
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$rv=1;
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$self->verbose("Unable to locate the top of local configuration area");
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}
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else {
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$self->location($location);
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$self->verbose("Found top ".$self->location());
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my $infofile=$self->location()."/".$self->{admindir}."/ConfigArea.dat";
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$self->_LoadEnvFile();
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}
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return $rv;
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}
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sub location {
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my $self=shift;
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if ( @_ ) {
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$self->{location}=shift;
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}
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elsif ( ! defined $self->{location} ) {
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# try and find the release location
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$self->{location}=$self->searchlocation();
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}
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return $self->{location};
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}
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sub searchlocation {
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my $self=shift;
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#start search in current directory if not specified
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my $thispath;
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if ( @_ ) {
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$thispath=shift
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}
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else {
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$thispath=cwd();
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}
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my $rv=0;
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# chop off any files - we only want dirs
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if ( -f $thispath ) {
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$thispath=~s/(.*)\/.*/$1/;
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}
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Sloop:{
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do {
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$self->verbose("Searching $thispath");
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if ( -e "$thispath/".$self->{admindir} ) {
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$self->verbose("Found\n");
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$rv=1;
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last Sloop;
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}
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} while ( ($thispath=~s/(.*)\/.*/$1/)=~/./ ) };
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return $rv?$thispath:undef;
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}
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sub copy {
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my $self=shift;
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my $destination=shift;
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# copy across the admin dir
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my $temp=$self->location()."/".$self->{admindir};
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AddDir::copydir($temp,"$destination/".$self->{admindir});
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}
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sub align {
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my $self=shift;
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use File::Copy;
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$self->_LoadEnvFile();
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my $Envfile=$self->location()."/".$self->{admindir}."/Environment";
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my $tmpEnvfile=$Envfile.".bak";
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my $rel=$self->{ENV}{RELEASETOP};
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my $local=$self->location();
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rename( $Envfile, $tmpEnvfile );
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use FileHandle;
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my $fh=FileHandle->new();
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my $fout=FileHandle->new();
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open ( $fh, "<".$tmpEnvfile ) or
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$self->error("Cannot find Environment file. Area Corrupted? ("
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.$self->location().")\n $!");
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open ( $fout, ">".$Envfile ) or
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$self->error("Cannot find Environment file. Area Corrupted? ("
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.$self->location().")\n $!");
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while ( <$fh> ) {
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$_=~s/\Q$rel\L/$local/g;
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print $fout $_;
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}
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undef $fh;
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undef $fout;
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}
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sub copysetup {
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my $self=shift;
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my $dest=shift;
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my $rv=1;
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# copy across the admin dir
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my $temp=$self->location()."/".$self->{admindir}."/".$self->arch();
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my $temp2=$dest."/".$self->{admindir}."/".$self->arch();
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if ( $temp ne $temp2 ) {
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if ( -d $temp ) {
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AddDir::copydir($temp,$temp2);
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$rv=0;
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}
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}
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return $rv;
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}
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sub copyenv {
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my $self=shift;
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my $hashref=shift;
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foreach $elem ( keys %{$self->{ENV}} ) {
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$$hashref{$elem}=$self->{ENV}{$elem};
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}
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}
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sub arch {
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my $self=shift;
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return $ENV{SCRAM_ARCH};
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}
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# ---- support routines
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sub _LoadEnvFile {
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my $self=shift;
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use FileHandle;
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my $fh=FileHandle->new();
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open ( $fh, "<".$self->location()."/".$self->{admindir}."/".
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"Environment" ) or
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$self->error("Cannot find Environment file. Area Corrupted? ("
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.$self->location().")\n $!");
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while ( <$fh> ) {
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chomp;
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next if /^#/;
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next if /^\s*$/ ;
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($name, $value)=split /=/;
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eval "\$self->{ENV}{${name}}=\"$value\"";
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}
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undef $fh;
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}
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