/[cvs]/nfo/perl/libs/Data/Rap/Engine.pm
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revision 1.7 by joko, Fri Mar 28 07:02:56 2003 UTC revision 1.11 by joko, Mon Jun 23 17:54:32 2003 UTC
# Line 2  Line 2 
2  ##  $Id$  ##  $Id$
3  ## ----------------------------------------------------------------------  ## ----------------------------------------------------------------------
4  ##  $Log$  ##  $Log$
5    ##  Revision 1.11  2003/06/23 17:54:32  joko
6    ##  prepared execution of in-process perl-code via eval (not activated yet!)
7    ##
8    ##  Revision 1.10  2003/05/13 07:56:12  joko
9    ##  enhanced: *hierarchical* containers for context handling
10    ##  fixes: some pre-flight checks
11    ##  new: propagate "end-tag" event to e.g. close containers
12    ##
13    ##  Revision 1.9  2003/04/04 17:23:11  joko
14    ##  minor update: debugging output
15    ##
16    ##  Revision 1.8  2003/03/29 07:11:54  joko
17    ##  modified: sub run_executable
18    ##  new: sub run_script
19    ##
20  ##  Revision 1.7  2003/03/28 07:02:56  joko  ##  Revision 1.7  2003/03/28 07:02:56  joko
21  ##  modified structure around '$wrapper_program'  ##  modified structure around '$wrapper_program'
22  ##  ##
# Line 41  use Iterate; Line 56  use Iterate;
56    
57  use shortcuts qw( run_cmd );  use shortcuts qw( run_cmd );
58  use Data::Mungle::Code::Ref qw( ref_slot );  use Data::Mungle::Code::Ref qw( ref_slot );
59  use Data::Mungle::Transform::Deep qw( expand );  use Data::Mungle::Transform::Deep qw( expand deep_copy );
60    use File::Temp qw/ tempfile tempdir /;
61    
62    
63  sub performTarget {  sub performTarget {
# Line 54  sub perform_target { Line 70  sub perform_target {
70    my $self = shift;    my $self = shift;
71    my $targetname = shift;    my $targetname = shift;
72    
73      # pre-flight checks
74      if (!$targetname) {
75        $self->log("Target name empty. Please try to specify (e.g.) on the command line.", 'critical');
76        return;
77      }
78    
79    my $header = ("- " x 12) . "   " . $targetname . "   " . ("- " x 6);    my $header = ("- " x 12) . "   " . $targetname . "   " . ("- " x 6);
80        
81      # V1
82    #$self->log("- " x 35, 'notice');    #$self->log("- " x 35, 'notice');
83    #$self->log("Performing Target '$targetname'.", 'notice');    #$self->log("Performing Target '$targetname'.", 'notice');
84    
85    $self->log($header, 'notice');    # V2
86      #$self->log($header, 'notice');
87    
88      # V3
89      $self->log("- " x 20, 'info');
90      $self->log("Performing Target '$targetname'.", 'notice');
91    
92    #exit;    #exit;
93    
# Line 71  sub perform_target { Line 99  sub perform_target {
99            
100    $self->perform_dependencies($target);    $self->perform_dependencies($target);
101    $self->perform_details($target);    $self->perform_details($target);
102      
103      return 1;
104    
105  }  }
106    
# Line 102  sub perform_details { Line 132  sub perform_details {
132    foreach my $entry (@{$target->{content}}) {    foreach my $entry (@{$target->{content}}) {
133      my $command = $entry->{name};      my $command = $entry->{name};
134      my $args = $entry->{attrib};      my $args = $entry->{attrib};
135      $self->perform_command($command, $args);      my $content = $entry->{content};
136        $self->perform_command($command, $args, $content, { warn => 1 } );
137      # check recursiveness      # check recursiveness
138      if ($entry->{content} && ref $entry->{content}) {      # new condition: don't recurse if node is flagged to have inline-args (2004-04-17)
139        my $has_inline_args = ($entry->{attrib}->{_args} && $entry->{attrib}->{_args} eq 'inline');
140        if ($entry->{content} && ref $entry->{content} && !$has_inline_args) {
141        $self->perform_details($entry);        $self->perform_details($entry);
142      }      }
143        # new of 2003-05-08
144        $self->perform_command($command . '_end', undef, undef, { warn => 0 } );
145    }    }
146  }  }
147    
# Line 118  sub rc { Line 153  sub rc {
153  sub perform_command {  sub perform_command {
154    my $self = shift;    my $self = shift;
155    my $command = shift;    my $command = shift;
156      my $args_list = shift;
157      my $content = shift;
158      my $options = shift;
159    
160    if (!$command) {    if (!$command) {
161      $self->log("Command was empty!", 'debug');      $self->log("Command was empty!", 'debug');
# Line 127  sub perform_command { Line 165  sub perform_command {
165    # FIXME: make '__PACKAGE__' go one level deeper properly!    # FIXME: make '__PACKAGE__' go one level deeper properly!
166    $self->log( __PACKAGE__ . "->perform_command: " . $command, 'debug');    $self->log( __PACKAGE__ . "->perform_command: " . $command, 'debug');
167        
168    my $args_list = shift;    
169      # 1. make arguments from list of arguments(?)
170    
171    my $args = {};    my $args = {};
172    #print Dumper($args_list);    #print Dumper($args_list);
173    if ($args_list) {    if ($args_list) {
# Line 139  sub perform_command { Line 179  sub perform_command {
179        $args = $args_list;        $args = $args_list;
180      }      }
181    }    }
   $command = '_' . $command;  
182        
183        
184    # determine container    # 2. prepare command
185      
186      # default setting for internal rap commands
187      my $method_prefix_default = '_';
188      # setting from property database
189      my $method_prefix_setting = $self->get_property('core.method_prefix');
190      #print "setting: ", $method_prefix_setting, "\n";
191      my $prefix = $method_prefix_setting;
192      if (not defined $prefix) {
193        $prefix = $method_prefix_default;
194      }
195      $command = $prefix . $command;
196      
197      
198      # 3. determine container
199    my $container; # = $self->getInstance();    my $container; # = $self->getInstance();
200      #$container ||= $self->getInstance();
201    $container ||= $self;    $container ||= $self;
202        
203      # 4. run method
204    if ($container->can($command)) {    if ($container->can($command)) {
205      $container->$command($args);      $container->$command($args, $content);
206    } else {    } else {
207      $self->log("Command '$command' not implemented.", "warning");      my $level = "debug";
208        $level = "warning" if $options->{warn};
209        $self->log("Command '$command' not implemented.", $level);
210    }    }
211        
212  }  }
# Line 213  sub set_property { Line 270  sub set_property {
270    
271    $self->log("set-name: $name");    $self->log("set-name: $name");
272    
273      #print Dumper($name, $value, '.');
274    
275    # fill property slot with given value    # fill property slot with given value
276    if ($value) {    # fix (2003-04-17): always do fill if value is *defined*!!!
277      if (defined $value) {
278      ref_slot($self, $name, $value, '.');      ref_slot($self, $name, $value, '.');
279    }    }
280        
# Line 300  sub run_executable { Line 360  sub run_executable {
360    my $self = shift;    my $self = shift;
361    my $opts = shift;    my $opts = shift;
362    
363      my $meta = deep_copy($opts);
364    
365      delete $opts->{caption};
366      delete $opts->{async};
367    
368      #print Dumper($meta);
369    
370    if ($opts->{executable}) {    if ($opts->{executable}) {
371    
372      my $program = $opts->{executable};      my $program = $opts->{executable};
# Line 355  sub run_executable { Line 422  sub run_executable {
422        #run_cmd($cmd);        #run_cmd($cmd);
423    
424        # V1.b - enhanced: variable local method        # V1.b - enhanced: variable local method
425        my $evalstr = "run_cmd('$cmd', 'Some task...', { async => 1 });";        $meta->{caption} ||= '';
426          $meta->{async} ||= 0;
427          # new of 2003-05-08: USE_PATH!
428          $meta->{USE_PATH} ||= 0;
429          my $evalstr = "run_cmd('$cmd', '$meta->{caption}', { async => $meta->{async}, USE_PATH => $meta->{USE_PATH} });";
430        eval($evalstr);        eval($evalstr);
431        #my $res = do "$cmd";        #my $res = do "$cmd";
432        #print $res, "\n" if $res;        #print $res, "\n" if $res;
# Line 372  sub run_executable { Line 443  sub run_executable {
443  }  }
444    
445    
446    sub run_script {
447    
448      my $self = shift;
449      my $args = shift;
450      my $code = shift;
451    
452      if ($args->{language} eq 'msdos/bat') {
453        
454        #print "code: $code", "\n";
455        
456        # reporting
457        $self->log("Executing some arbitrary unsigned code (probably unsafe). [language=$args->{language}]", 'info');
458        $self->log("\n<code>\n$code\n</code>", 'info');
459        
460        # create temporary intermediate file to execute code
461        my $tmpdir = '/tmp/rap';
462        mkdir $tmpdir;
463        (my $fh, my $filename) = tempfile( DIR => $tmpdir, SUFFIX => '.bat' );
464        print $fh $code, "\n";
465        run_cmd( $filename, '', { async => 1 } );
466        
467        # FIXME: DELETE code inside temp-files as soon as possible!
468        #print $fh '';
469        
470        # TODO: delete FILE completely!
471        # required for this: wait until execution has finished, then unlink....
472        # but: "how to wait until execution is finished"?
473        # i believe the best is to spawn *another* process directly from here,
474        # let's call it 'watcher-agent'.
475        # This one should monitor a certain running process and delete its
476        # executable file after it has finished execution.
477        # Possible extensions could be:
478        #   keep track of all stuff sent to STDOUT or STDERR and
479        #   send that stuff to the task-owner indirectly (not via shell/console)
480        #   (e.g. via email, by posting report to a newsgroup or publishing on a specified web-page: use mod-dav!)
481        
482      } elsif ($args->{language} eq 'bash') {
483        $self->log("FIXME: - - - - - -- - - --  BASH -  - -    -  - -   -    --   - ", 'error');
484    
485      } elsif ($args->{language} eq 'perl') {
486        
487        # reporting
488        #$self->log("Executing some arbitrary unsigned code (probably unsafe). [language=$args->{language}]", 'info');
489        #$self->log("\n<code>\n$code\n</code>", 'info');
490        
491        # do it
492        #eval($code);
493        #$self->log("\n<code>\n$code\n</code>", 'error') if $@;
494        
495      } else {
496        $self->log("FIXME: Script language '$args->{language}' not implemented.", 'error');
497        
498      }
499    
500    }
501    
502  1;  1;
503  __END__  __END__
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