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## ---------------------------------------------------------------------- |
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## $Id: Engine.pm,v 1.7 2003/03/28 07:02:56 joko Exp $ |
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## ---------------------------------------------------------------------- |
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## $Log: Engine.pm,v $ |
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## Revision 1.7 2003/03/28 07:02:56 joko |
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## modified structure around '$wrapper_program' |
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## |
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## Revision 1.6 2003/03/27 15:31:05 joko |
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## fixes to modules regarding new namespace(s) below Data::Mungle::* |
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## |
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## Revision 1.5 2003/03/27 15:03:03 joko |
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## enhanced 'sub run_executable' |
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## |
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## Revision 1.4 2003/02/22 16:51:21 joko |
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## + enhanced run_executable |
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## modified logging output |
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## |
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## Revision 1.3 2003/02/21 01:46:17 joko |
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## renamed core function |
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## |
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## Revision 1.2 2003/02/20 19:46:33 joko |
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## renamed and revamped some of modules |
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## renamed methods |
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## + sub run_executable |
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## |
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## Revision 1.1 2003/02/18 15:35:25 joko |
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## + initial commit |
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## |
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## ---------------------------------------------------------------------- |
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|
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|
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package Data::Rap::Engine; |
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|
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use strict; |
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use warnings; |
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|
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|
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use Data::Dumper; |
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use Hash::Merge qw( merge ); |
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use Iterate; |
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|
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use shortcuts qw( run_cmd ); |
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use Data::Mungle::Code::Ref qw( ref_slot ); |
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use Data::Mungle::Transform::Deep qw( expand deep_copy ); |
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use File::Temp qw/ tempfile tempdir /; |
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|
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|
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sub performTarget { |
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my $self = shift; |
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my $targetname = shift; |
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$self->perform_target($targetname); |
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} |
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|
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sub perform_target { |
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my $self = shift; |
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my $targetname = shift; |
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|
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my $header = ("- " x 12) . " " . $targetname . " " . ("- " x 6); |
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|
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# V1 |
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#$self->log("- " x 35, 'notice'); |
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#$self->log("Performing Target '$targetname'.", 'notice'); |
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|
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# V2 |
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#$self->log($header, 'notice'); |
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|
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# V3 |
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$self->log("- " x 35, 'info'); |
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$self->log("Performing Target '$targetname'.", 'notice'); |
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|
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#exit; |
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|
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my $target = $self->getTargetDetails($targetname); |
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|
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# trace |
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#print Dumper($target); |
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#exit; |
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|
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$self->perform_dependencies($target); |
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$self->perform_details($target); |
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|
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} |
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|
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sub perform_dependencies { |
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my $self = shift; |
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my $target = shift; |
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# resolve dependencies (just run prior) |
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if (my $targetname_dep = $target->{attrib}->{depends}) { |
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my @targets = split(/,\s|,/, $targetname_dep); |
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#print Dumper(@targets); |
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#$self->perform($targetname_dep); |
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#delete $target->{attrib}->{depends}; |
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foreach (@targets) { |
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if (!$self->{__rap}->{dependencies}->{resolved}->{$_}++) { |
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$self->perform_target($_); |
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} |
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} |
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delete $target->{attrib}->{depends}; |
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} |
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} |
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|
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sub perform_details { |
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my $self = shift; |
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my $target = shift; |
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|
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#print Dumper($target); |
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#exit; |
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|
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foreach my $entry (@{$target->{content}}) { |
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my $command = $entry->{name}; |
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my $args = $entry->{attrib}; |
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my $content = $entry->{content}; |
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$self->perform_command($command, $args, $content); |
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# check recursiveness |
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if ($entry->{content} && ref $entry->{content}) { |
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$self->perform_details($entry); |
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} |
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} |
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} |
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|
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sub rc { |
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my $self = shift; |
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return $self->perform_command(@_); |
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} |
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|
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sub perform_command { |
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my $self = shift; |
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my $command = shift; |
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my $args_list = shift; |
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my $content = shift; |
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|
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if (!$command) { |
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$self->log("Command was empty!", 'debug'); |
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return; |
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} |
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|
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# FIXME: make '__PACKAGE__' go one level deeper properly! |
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$self->log( __PACKAGE__ . "->perform_command: " . $command, 'debug'); |
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|
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my $args = {}; |
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#print Dumper($args_list); |
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if ($args_list) { |
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if (ref $args_list eq 'ARRAY') { |
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foreach (@$args_list) { |
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$args = merge($args, $_); |
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} |
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} else { |
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$args = $args_list; |
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} |
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} |
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$command = '_' . $command; |
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|
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|
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# determine container |
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my $container; # = $self->getInstance(); |
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$container ||= $self; |
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|
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if ($container->can($command)) { |
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$container->$command($args, $content); |
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} else { |
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$self->log("Command '$command' not implemented.", "warning"); |
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} |
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|
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} |
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|
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|
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sub merge_properties { |
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my $self = shift; |
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my $name = shift; |
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my $data = shift; |
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|
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$self->log("merge-name: $name"); |
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#print "name: $name", "\n"; |
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#print Dumper($data); |
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#exit; |
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|
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# check if slot (or childs of it) is/are already occupied |
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#if (my $data_old = ref_slot($self, $name, undef, '.')) { |
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if (my $data_old = $self->get_property($name)) { |
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#print "old:", "\n"; |
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#print Dumper($data_old); |
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|
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# FIXME: review - any options for 'merge' here? |
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my $data_new = merge($data_old, $data); |
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#print "DATA NEE! - MERGE!", "\n"; |
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#print Dumper($data_new); |
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#exit; |
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#merge_to($self, $data_new); |
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$self->set_property( { name => $name, value => $data_new } ); |
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|
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} else { |
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|
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=pod |
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# make up a dummy hash matching the structure of the destination one |
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my $dummy = {}; |
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ref_slot($dummy, $name, $data, '.'); |
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print Dumper($dummy); |
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|
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# mix into destination |
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mixin($self, $dummy, { init => 1 }); |
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=cut |
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|
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ref_slot($self, $name, $data, '.'); |
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|
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} |
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|
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|
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#print Dumper($self); |
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#exit; |
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#$self-> |
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|
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} |
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|
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sub set_property { |
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my $self = shift; |
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my $args = shift; |
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|
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$self->interpolate($args) ; |
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my $name = $args->{name}; |
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my $value = $args->{value}; |
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$name = '__rap.properties.' . $name; |
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|
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$self->log("set-name: $name"); |
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|
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# fill property slot with given value |
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if ($value) { |
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ref_slot($self, $name, $value, '.'); |
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} |
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|
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#print Dumper($self); |
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|
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# FIXME!!! |
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#return if ! ref $args; |
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|
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# fill property slot with (probably bigger) data structure from property-/configuration-style - file |
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if (my $file = $args->{file}) { |
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my $type = $args->{type}; |
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if (!$type) { |
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die("default file (no type specified) is not implemented yet!"); |
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|
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} elsif ($type eq 'perl-eval') { |
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#die($type); |
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$self->loadFromPerlFile($file, $name, $args->{'varnames'}); |
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|
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} elsif ($type eq 'App::Config') { |
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die("not implemented: $type"); |
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|
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} |
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|
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} elsif (my $command = $args->{command}) { |
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$self->perform_command($command, $args); |
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|
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} |
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|
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} |
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|
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sub get_property { |
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my $self = shift; |
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#my $args = shift; |
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my $name = shift; |
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|
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#$self->interpolate($args); |
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|
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#my $name = $args->{name}; |
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my $result; |
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|
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if (!$name) { |
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$self->log( __PACKAGE__ . ": no name!", 'critical'); |
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|
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} elsif ($name eq '/') { |
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$result = expand($self); |
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|
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} elsif ($name eq '.') { |
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if (my $instance = $self->getInstance()) { |
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$result = expand($instance); |
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} else { |
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$result = ref_slot($self, '__rap.properties', undef, '.'); |
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|
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} |
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|
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} else { |
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|
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$name = '__rap.properties.' . $name; |
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|
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$self->log("get-name: $name"); |
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|
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# get property slot and return value |
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$result = ref_slot($self, $name, undef, '.'); |
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|
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# FIXME: Is this okay? It's provided for now in order not |
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# to deliver an 'undef' to the regex below inside 'interpolate'. |
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# revamp this, maybe! |
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#$result ||= ''; # NO!!! |
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} |
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|
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return $result; |
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} |
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|
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sub interpolate { |
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my $self = shift; |
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my $ref = shift; |
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IterHash %$ref, sub { |
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#print $_[1], "\n"; |
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$_[1] =~ s/\${(.+)}/$self->get_property($1)/e; |
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} |
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} |
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|
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sub run_executable { |
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my $self = shift; |
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my $opts = shift; |
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|
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my $meta = deep_copy($opts); |
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|
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delete $opts->{caption}; |
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delete $opts->{async}; |
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|
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#print Dumper($meta); |
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|
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if ($opts->{executable}) { |
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|
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my $program = $opts->{executable}; |
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delete $opts->{executable}; |
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|
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# determine execution method |
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my $wrapper_program = ''; |
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|
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# check if program is a namespace-string (contains '::') - use 'do' in this case! |
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if ($program =~ /::/) { |
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#$wrapper_program = 'rap.pl'; |
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$wrapper_program = $0; |
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} |
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|
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# prepare arguments |
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my @buf; |
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foreach (keys %$opts) { |
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my $value = $opts->{$_}; |
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if (m/^_/) { |
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if ($_ eq '_switches') { |
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my @switches = split(/,\s|,/, $value); |
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foreach my $switch (@switches) { |
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push @buf, '--' . $switch; |
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} |
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} |
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next; |
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} |
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|
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if ($value =~ /\s/) { |
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$value = "\"$value\""; |
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} |
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push @buf, "--$_=$value"; |
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} |
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|
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# build {program} & {arguments} |
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my $cmd = ($wrapper_program ? $wrapper_program . ' ' : '') . $program . ' ' . join(' ', @buf); |
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|
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# trace |
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#print "command: $cmd", "\n"; |
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|
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# start process |
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# V1: via shortcut |
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#$ENV{PERL5LIB} = join(' ', @INC); |
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|
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# FIXME!!! what about the other slots of @INC? |
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$ENV{PERL5LIB} = $INC[0]; |
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|
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#print Dumper(%ENV); |
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|
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#print "command: '$cmd'", "\n"; |
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|
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# V1 - basic |
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#run_cmd($cmd); |
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|
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# V1.b - enhanced: variable local method |
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$meta->{caption} ||= ''; |
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$meta->{async} ||= 0; |
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my $evalstr = "run_cmd('$cmd', '$meta->{caption}', { async => $meta->{async} });"; |
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eval($evalstr); |
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#my $res = do "$cmd"; |
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#print $res, "\n" if $res; |
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|
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#$self->log("run_executable: $evalstr", 'info'); |
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$self->raiseException("run_executable: $evalstr\n$@") if $@; |
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|
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# V2: via IPC::Run |
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# .... (TODO) |
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|
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|
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} |
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|
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} |
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|
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|
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sub run_script { |
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|
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my $self = shift; |
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my $args = shift; |
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my $code = shift; |
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|
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if ($args->{language} eq 'msdos/bat') { |
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|
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#print "code: $code", "\n"; |
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|
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# reporting |
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$self->log("Executing some arbitrary unsigned code (probably unsafe). [language=$args->{language}]", 'info'); |
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$self->log("\n<code>\n$code\n</code>", 'info'); |
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|
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# create temporary intermediate file to execute code |
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my $tmpdir = '/tmp/rap'; |
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mkdir $tmpdir; |
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(my $fh, my $filename) = tempfile( DIR => $tmpdir, SUFFIX => '.bat' ); |
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print $fh $code, "\n"; |
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run_cmd( $filename, '', { async => 1 } ); |
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|
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# FIXME: DELETE code inside temp-files as soon as possible! |
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#print $fh ''; |
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|
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# TODO: delete FILE completely! |
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# required for this: wait until execution has finished, then unlink.... |
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# but: "how to wait until execution is finished"? |
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# i believe the best is to spawn *another* process directly from here, |
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# let's call it 'watcher-agent'. |
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# This one should monitor a certain running process and delete its |
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# executable file after it has finished execution. |
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# Possible extensions could be: |
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# keep track of all stuff sent to STDOUT or STDERR and |
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# send that stuff to the task-owner indirectly (not via shell/console) |
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# (e.g. via email, by posting report to a newsgroup or publishing on a specified web-page: use mod-dav!) |
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|
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} elsif ($args->{language} eq 'bash') { |
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$self->log("FIXME: - - - - - -- - - -- BASH - - - - - - - -- - ", 'error'); |
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|
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} else { |
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$self->log("FIXME: Script language '$args->{language}' not implemented.", 'error'); |
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|
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} |
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|
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} |
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|
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1; |
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__END__ |
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