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#
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# DateStampChecker.pm
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#
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# Originally Written by Christopher Williams
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#
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# Description
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#
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# Interface
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# ---------
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# new(localtop,releasetop) : A new DateStampChecker object
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# datefiles(@files) : process files datestamps according to the ds files
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package BuildSystem::DateStampChecker;
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use Utilities::Verbose;
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use BuildSystem::DateStampRecord;
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use File::Copy;
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use FileHandle;
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require 5.004;
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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 $self={};
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$self->{localtop}=shift;
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$self->{releasetop}=shift;
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bless $self, $class;
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return $self;
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}
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sub datefiles {
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my $self=shift;
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my @dsfiles=@_;
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my $file;
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foreach $datafile ( @dsfiles ) {
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$self->verbose("Processing $datafile\n");
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my $ds=BuildSystem::DateStampRecord->new($datafile);
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$ds->verbosity($self->verbosity());
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my $date;
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my $needsupdate;
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my $productfile=$ds->product();
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my (%files,%moddate);
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# now get dates in our dependency list
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my @datedfiles=$ds->dated();
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if ( $#datedfiles >= 0 ) {
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$needsupdate=1;
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$date=$datedfiles[0][1]-1;
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}
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else {
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# -- extra checks for local replacement of files
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foreach $file ( $ds->contents() ) {
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# -- only check files
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if ( -f $file ) {
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$files{$file}=$ds->filedate($file);
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# -- check to see if we have a new local copy
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if ( ($file=~/\Q$self->{releasetop}\E/) &&
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($self->{releasetop} ne $self->{localtop}) ) {
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($tempfile=$file)=~s/\Q$self->{releasetop}\E/$self->{localtop}/;
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if ( -f $tempfile ) {
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$files{$tempfile}=$files{$file};
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$file=$tempfile;
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}
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}
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$moddate{$file}=(stat($file))[9];
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if ( $moddate{$file} != $files{$file} ) {
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$self->verbose($file." changed");
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$date=$moddate{$file}-1;
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$needsupdate=1;
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}
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}
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}
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}
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# time stamp the product file to be older than the dependencies
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if ( $needsupdate == 1 ) { # touch file into the past
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my $newproductfile;
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if ( $productfile!~/\Q$self->{localtop}\E/ ) {
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if ( $productfile=~/\Q$self->{releasetop}\E/ ) {
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($newproductfile=$productfile)=~
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s/\Q$self->{releasetop}\E/$self->{localtop}/;
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$self->verbose("Copying $productfile to $newproductfile");
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copy($productfile,$newproductfile);
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}
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else { # assume no path to worry about
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$newproductfile=$self->{localtop}."/".$ENV{workdir}.
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"/".$productfile;
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# -- make a local copy of the product file if not already here
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my $oldproductfile=$self->{releasetop}."/".$ENV{workdir}.
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"/".$productfile;
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if ( ! -f $newproductfile ) {
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if ( -f $oldproductfile ) {
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$self->verbose("Copying $oldproductfile to $newproductfile");
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copy($oldproductfile,$newproductfile);
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}
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}
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}
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}
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else {
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$newproductfile=$productfile;
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}
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if ( -f $newproductfile ) {
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$self->verbose("Blasting $newproductfile to the past ($date)");
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# If the (local) productfile exists - make it older
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utime($date,$date,$newproductfile);
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}
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else {
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$self->verbose("SomeThing Wrong(?) with $newproductfile\n".
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"RELEASETOP=".$self->{releasetop}."\n".
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"LOCALTOP=".$self->{localtop}."\n".
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"workdir=".$ENV{workdir});
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}
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}
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else {
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$self->verbose("No need to touch $productfile");
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}
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}
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}
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