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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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# Notes
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# -------
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# Persistency - remember to call the save method to make changes persistent
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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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# name() : get/set project name
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# setup(dir[,areaname]) : setup a fresh area in dir
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# version() : get/set project version
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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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# 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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# save() : save changes permanently
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# linkto(location) : link the current area to that at location
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# unlinkarea() : destroy link (autosave)
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# linkarea([ConfigArea]) : link the current area to the apec Area 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 URL::URLcache;
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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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$self->{cachedir}="cache";
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undef $self->{linkarea};
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return $self;
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}
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sub cache {
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my $self=shift;
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if ( @_ ) {
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$self->{cache}=shift;
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}
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elsif ( ! defined $self->{cache} ) {
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my $loc=$self->location()."/".$self->{admindir}."/".$self->{cachedir};
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$self->{cache}=URL::URLcache->new($loc);
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}
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return $self->{cache};
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}
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sub name {
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my $self=shift;
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@_?$self->{name}=shift
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:$self->{name};
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}
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sub version {
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my $self=shift;
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@_?$self->{version}=shift
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:$self->{version};
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}
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sub setup {
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my $self=shift;
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my $location=shift;
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my $areaname;
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# -- check we have a project name and version
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my $name=$self->name();
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my $vers=$self->version();
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if ( ( ! defined $name ) && ( ! defined $version )) {
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$self->error("Set ConfigArea name and version before setup");
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}
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# -- check arguments and set location
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if ( ! defined $location ) {
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$self->error("ConfigArea: Cannont setup area without a location");
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}
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if ( @_ ) {
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$areaname=shift;
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}
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if ( (! defined $areaname) || ( $areaname eq "" ) ) {
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# -- make up a name from the project name and version
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$vers=~s/^$name\_//;
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$areaname=$name."_".$vers;
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}
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my $arealoc=$location."/".$areaname;
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my $workloc=$arealoc."/".$self->{admindir};
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$self->verbose("Building at $arealoc");
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$self->location($arealoc);
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# -- create top level structure and work area
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AddDir::adddir($workloc);
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# -- add a cache
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$self->cache();
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# -- Save Environment File
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$self->_SaveEnvFile();
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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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return (defined $self->{configurationdir})?$self->{configurationdir}:undef;
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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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return (defined $self->{reqdoc})?$self->{reqdoc}:undef;
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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 satellite {
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my $self=shift;
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# -- create the sat object
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my $sat=Configuration::ConfigArea->new();
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$sat->name($self->name());
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$sat->version($self->version());
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$sat->requirementsdoc($self->requirementsdoc());
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$sat->configurationdir($self->configurationdir());
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$sat->setup(@_);
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# -- copy across the cache
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copy($self->cache()->location(),$sat->cache()->location());
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# and make sure in reinitialises
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undef ($sat->{cache});
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# -- link it to this area
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$sat->linkarea($self);
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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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sub linkto {
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my $self=shift;
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my $location=shift;
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if ( -d $location ) {
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my $area=Configuration::ConfigArea->new();
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$area->bootstrapfromlocation($location);
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$self->linkarea($area);
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}
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else {
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$self->error("ConfigArea : Unable to link to non existing directory ".
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$location);
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}
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}
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sub unlinkarea {
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my $self=shift;
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undef $self->{linkarea};
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$self->{linkarea}=undef;
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$self->save();
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}
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sub linkarea {
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my $self=shift;
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my $area=shift;
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if ( defined $area ) {
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$self->{linkarea}=$area;
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}
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return (defined $self->{linkarea} && $self->{linkarea} ne "")?
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$self->{linkarea}:undef;
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}
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sub save {
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my $self=shift;
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$self->_SaveEnvFile();
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}
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# ---- support routines
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sub _SaveEnvFile {
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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 Open Environment file to Save ("
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.$self->location().")\n $!");
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print $fh "SCRAM_PROJECTNAME=".$self->name()."\n";
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print $fh "SCRAM_PROJECTVERSION=".$self->version()."\n";
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print $fh "projconfigdir=".$self->configurationdir()."\n";
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print $fh "SCRAM_ProjReqsDoc=".$self->requirementsdoc()."\n";
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if ( defined $self->linkarea() ) {
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my $area=$self->linkarea()->location();
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if ( $area ne "" ) {
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print $fh "RELEASETOP=".$area."\n";
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}
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}
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undef $fh;
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}
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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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# -- set internal variables appropriately
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if ( defined $self->{ENV}{"SCRAM_PROJECTNAME"} ) {
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| 403 |
$self->name($self->{ENV}{"SCRAM_PROJECTNAME"});
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}
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| 405 |
if ( defined $self->{ENV}{"SCRAM_PROJECTVERSION"} ) {
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| 406 |
$self->version($self->{ENV}{"SCRAM_PROJECTVERSION"});
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}
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| 408 |
if ( defined $self->{ENV}{"projconfigdir"} ) {
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$self->configurationdir($self->{ENV}{projconfigdir});
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}
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if ( defined $self->{ENV}{"SCRAM_ProjReqsDoc"} ) {
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$self->requirementsdoc($self->{ENV}{SCRAM_ProjReqsDoc});
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}
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if ( ( defined $self->{ENV}{"RELEASETOP"} ) &&
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| 415 |
($self->{ENV}{"RELEASETOP"} ne $self->location())) {
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| 416 |
$self->linkto($self->{ENV}{"RELEASETOP"});
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}
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else {
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$self->{ENV}{"RELEASETOP"}=$self->location();
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}
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}
|
