/[cvs]/nfo/perl/libs/Data/Rap/Engine.pm
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revision 1.6 by joko, Thu Mar 27 15:31:05 2003 UTC revision 1.16 by jonen, Mon Jun 21 14:15:06 2004 UTC
# Line 2  Line 2 
2  ##  $Id$  ##  $Id$
3  ## ----------------------------------------------------------------------  ## ----------------------------------------------------------------------
4  ##  $Log$  ##  $Log$
5    ##  Revision 1.16  2004/06/21 14:15:06  jonen
6    ##  handle path-modifications in a generic way now(fix for BSD)
7    ##
8    ##  Revision 1.15  2004/06/16 16:37:59  joko
9    ##  attempt to get things going in a generic way (Linux/FreeBSD/Win32)
10    ##
11    ##  Revision 1.14  2004/05/12 14:23:31  jonen
12    ##   add comment/code related to PERL5LIB var at different OS's
13    ##
14    ##  Revision 1.13  2003/12/05 05:02:08  joko
15    ##  + minor update: disabled some unnecessary loggers or changed to debug-level
16    ##
17    ##  Revision 1.12  2003/06/24 20:59:51  jonen
18    ##  added option 'detach'
19    ##
20    ##  Revision 1.11  2003/06/23 17:54:32  joko
21    ##  prepared execution of in-process perl-code via eval (not activated yet!)
22    ##
23    ##  Revision 1.10  2003/05/13 07:56:12  joko
24    ##  enhanced: *hierarchical* containers for context handling
25    ##  fixes: some pre-flight checks
26    ##  new: propagate "end-tag" event to e.g. close containers
27    ##
28    ##  Revision 1.9  2003/04/04 17:23:11  joko
29    ##  minor update: debugging output
30    ##
31    ##  Revision 1.8  2003/03/29 07:11:54  joko
32    ##  modified: sub run_executable
33    ##  new: sub run_script
34    ##
35    ##  Revision 1.7  2003/03/28 07:02:56  joko
36    ##  modified structure around '$wrapper_program'
37    ##
38  ##  Revision 1.6  2003/03/27 15:31:05  joko  ##  Revision 1.6  2003/03/27 15:31:05  joko
39  ##  fixes to modules regarding new namespace(s) below Data::Mungle::*  ##  fixes to modules regarding new namespace(s) below Data::Mungle::*
40  ##  ##
# Line 36  use Data::Dumper; Line 69  use Data::Dumper;
69  use Hash::Merge qw( merge );  use Hash::Merge qw( merge );
70  use Iterate;  use Iterate;
71    
72  use shortcuts qw( run_cmd );  use shortcuts qw( run_cmd RUNNING_IN_HELL RUNNING_IN_HEAVEN );
73  use Data::Mungle::Code::Ref qw( ref_slot );  use Data::Mungle::Code::Ref qw( ref_slot );
74  use Data::Mungle::Transform::Deep qw( expand );  use Data::Mungle::Transform::Deep qw( expand deep_copy );
75    use File::Temp qw/ tempfile tempdir /;
76    
77    my $DEBUG = 0;
78    
79  sub performTarget {  sub performTarget {
80    my $self = shift;    my $self = shift;
# Line 51  sub perform_target { Line 86  sub perform_target {
86    my $self = shift;    my $self = shift;
87    my $targetname = shift;    my $targetname = shift;
88    
89      # pre-flight checks
90      if (!$targetname) {
91        $self->log("Target name empty. Please try to specify (e.g.) on the command line.", 'critical');
92        return;
93      }
94    
95    my $header = ("- " x 12) . "   " . $targetname . "   " . ("- " x 6);    my $header = ("- " x 12) . "   " . $targetname . "   " . ("- " x 6);
96        
97      # V1
98    #$self->log("- " x 35, 'notice');    #$self->log("- " x 35, 'notice');
99    #$self->log("Performing Target '$targetname'.", 'notice');    #$self->log("Performing Target '$targetname'.", 'notice');
100    
101    $self->log($header, 'notice');    # V2
102      #$self->log($header, 'notice');
103    
104      # V3
105      #$self->log("- " x 20, 'info');
106      $self->log("Performing Target '$targetname'.", 'notice');
107    
108    #exit;    #exit;
109    
# Line 68  sub perform_target { Line 115  sub perform_target {
115            
116    $self->perform_dependencies($target);    $self->perform_dependencies($target);
117    $self->perform_details($target);    $self->perform_details($target);
118      
119      return 1;
120    
121  }  }
122    
# Line 99  sub perform_details { Line 148  sub perform_details {
148    foreach my $entry (@{$target->{content}}) {    foreach my $entry (@{$target->{content}}) {
149      my $command = $entry->{name};      my $command = $entry->{name};
150      my $args = $entry->{attrib};      my $args = $entry->{attrib};
151      $self->perform_command($command, $args);      my $content = $entry->{content};
152        $self->perform_command($command, $args, $content, { warn => 1 } );
153      # check recursiveness      # check recursiveness
154      if ($entry->{content} && ref $entry->{content}) {      # new condition: don't recurse if node is flagged to have inline-args (2003-04-17)
155        my $has_inline_args = ($entry->{attrib}->{_args} && $entry->{attrib}->{_args} eq 'inline');
156        if ($entry->{content} && ref $entry->{content} && !$has_inline_args) {
157        $self->perform_details($entry);        $self->perform_details($entry);
158      }      }
159        # new of 2003-05-08
160        $command ||= '';
161        $self->perform_command($command . '_end', undef, undef, { warn => 0 } );
162    }    }
163  }  }
164    
# Line 115  sub rc { Line 170  sub rc {
170  sub perform_command {  sub perform_command {
171    my $self = shift;    my $self = shift;
172    my $command = shift;    my $command = shift;
173      my $args_list = shift;
174      my $content = shift;
175      my $options = shift;
176    
177    if (!$command) {    if (!$command) {
178      $self->log("Command was empty!", 'debug');      $self->log("Command was empty!", 'debug') if $DEBUG;
179      return;      return;
180    }    }
181    
182    # FIXME: make '__PACKAGE__' go one level deeper properly!    # FIXME: make '__PACKAGE__' go one level deeper properly!
183    $self->log( __PACKAGE__ . "->perform_command: " . $command, 'debug');    $self->log( __PACKAGE__ . "->perform_command: " . $command, 'debug') if $DEBUG;
184        
185    my $args_list = shift;    
186      # 1. make arguments from list of arguments(?)
187    
188    my $args = {};    my $args = {};
189    #print Dumper($args_list);    #print Dumper($args_list);
190    if ($args_list) {    if ($args_list) {
# Line 136  sub perform_command { Line 196  sub perform_command {
196        $args = $args_list;        $args = $args_list;
197      }      }
198    }    }
   $command = '_' . $command;  
199        
200        
201    # determine container    # 2. prepare command
202      
203      # default setting for internal rap commands
204      my $method_prefix_default = '_';
205      # setting from property database
206      my $method_prefix_setting = $self->get_property('core.method_prefix');
207      #print "setting: ", $method_prefix_setting, "\n";
208      my $prefix = $method_prefix_setting;
209      if (not defined $prefix) {
210        $prefix = $method_prefix_default;
211      }
212      $command = $prefix . $command;
213      
214      
215      # 3. determine container
216    my $container; # = $self->getInstance();    my $container; # = $self->getInstance();
217      #$container ||= $self->getInstance();
218    $container ||= $self;    $container ||= $self;
219        
220      # 4. run method
221    if ($container->can($command)) {    if ($container->can($command)) {
222      $container->$command($args);      $container->$command($args, $content);
223    } else {    } else {
224      $self->log("Command '$command' not implemented.", "warning");      my $level = "debug";
225        $level = "warning" if $options->{warn};
226        $self->log("Command '$command' not implemented.", $level) if $DEBUG;
227    }    }
228        
229  }  }
# Line 210  sub set_property { Line 287  sub set_property {
287    
288    $self->log("set-name: $name");    $self->log("set-name: $name");
289    
290      #print Dumper($name, $value, '.');
291    
292    # fill property slot with given value    # fill property slot with given value
293    if ($value) {    # fix (2003-04-17): always do fill if value is *defined*!!!
294      if (defined $value) {
295      ref_slot($self, $name, $value, '.');      ref_slot($self, $name, $value, '.');
296    }    }
297        
# Line 270  sub get_property { Line 350  sub get_property {
350    
351      $name = '__rap.properties.' . $name;      $name = '__rap.properties.' . $name;
352            
353      $self->log("get-name: $name");      $self->log("get-name: $name") if $DEBUG;
354            
355      # get property slot and return value      # get property slot and return value
356      $result = ref_slot($self, $name, undef, '.');      $result = ref_slot($self, $name, undef, '.');
# Line 297  sub run_executable { Line 377  sub run_executable {
377    my $self = shift;    my $self = shift;
378    my $opts = shift;    my $opts = shift;
379    
380      my $meta = deep_copy($opts);
381    
382      delete $opts->{caption};
383      delete $opts->{async};
384      delete $opts->{detach};
385    
386      #print Dumper($meta);
387    
388    if ($opts->{executable}) {    if ($opts->{executable}) {
389    
390      my $program = $opts->{executable};      my $program = $opts->{executable};
391      delete $opts->{executable};      delete $opts->{executable};
392    
393      # determine execution method      # determine execution method
     my $method = 'run_cmd';  
394      my $wrapper_program = '';      my $wrapper_program = '';
395            
396      # check if program is a namespace-string (contains '::') - use 'do' in this case!      # check if program is a namespace-string (contains '::') - use 'do' in this case!
397      if ($program =~ /::/) {      if ($program =~ /::/) {
398      #if ($program =~ s/::/\\/g) {        #$wrapper_program = 'rap.pl';
399        #$program = '.\\' . $program;        $wrapper_program = $0;
       #$method = 'require';  
       #do "$program";  
       #return;  
       #$method = 'rap.';  
         
       $wrapper_program = 'rap.pl';  
         
400      }      }
401    
402      # prepare arguments      # prepare arguments
# Line 340  sub run_executable { Line 420  sub run_executable {
420      }      }
421    
422      # build {program} & {arguments}        # build {program} & {arguments}  
423      my $cmd = join(' ', $wrapper_program, $program) . ' ' . join(' ', @buf);      my $cmd = ($wrapper_program ? $wrapper_program . ' ' : '') . $program . ' ' . join(' ', @buf);
424            
425      # trace      # trace
426        #print "command: $cmd", "\n";        #print "command: $cmd", "\n";
427            
428      # start process      # start process
429        # V1: via shortcut        # 2004-05-11 - seems like only ONE args is valid at PERL5LIB, so we use V2!
430        #$ENV{PERL5LIB} = join(' ', @INC);        # 2004-06-16 - found out delimiter required for PERL5LIB, reverting back to V1!
431                
432        # FIXME!!! what about the other slots of @INC?        # V1: join all args
433        $ENV{PERL5LIB} = $INC[0];        #my $delimiter = ':';
434          #$delimiter = ';' if RUNNING_IN_HELL();
435          #$ENV{PERL5LIB} = join($delimiter, @INC);
436          # V2: insert only FIRST arg
437          #$ENV{PERL5LIB} = $INC[0];
438          # WARNING: at (free)BSD our var is the SECOND, NOT FIRST!!
439          # FIXME!! Do this in an abstract way!!
440          #$ENV{PERL5LIB} = $INC[1];
441          # V3: mix V1+V2 (because V1 doesn't fit at freeBSD..)
442          if(RUNNING_IN_HEAVEN()) {
443            $ENV{PERL5LIB} = $INC[1];
444          } else {
445            my $delimiter = ':';
446            $delimiter = ';' if RUNNING_IN_HELL();
447            $ENV{PERL5LIB} = join($delimiter, @INC);
448          }
449                
450        #print Dumper(%ENV);        #print Dumper(%ENV);
451                
452        print "command: '$cmd'", "\n";        #print "command: '$cmd'", "\n";
453    
454        # V1 - basic        # V1 - basic
455        #run_cmd($cmd);        #run_cmd($cmd);
456    
457        # V1.b - enhanced: variable local method        # V1.b - enhanced: variable local method
458        my $evalstr = "$method('$cmd');";        $meta->{caption} ||= '';
459          $meta->{async} ||= 0;
460          $meta->{detach} ||= 0;
461          # new of 2003-05-08: USE_PATH!
462          $meta->{USE_PATH} ||= 0;
463          my $evalstr = "run_cmd('$cmd', '$meta->{caption}', { async => $meta->{async}, detach => $meta->{detach}, USE_PATH => $meta->{USE_PATH} });";
464        eval($evalstr);        eval($evalstr);
465        #my $res = do "$cmd";        #my $res = do "$cmd";
466        #print $res, "\n" if $res;        #print $res, "\n" if $res;
# Line 370  sub run_executable { Line 470  sub run_executable {
470    
471        # V2: via IPC::Run        # V2: via IPC::Run
472        # ....  (TODO)        # ....  (TODO)
473              
474            
475    }    }
476        
477  }  }
478    
479    
480    sub run_script {
481    
482      my $self = shift;
483      my $args = shift;
484      my $code = shift;
485    
486      if ($args->{language} eq 'msdos/bat') {
487        
488        #print "code: $code", "\n";
489        
490        # reporting
491        $self->log("Executing some arbitrary unsigned code (probably unsafe). [language=$args->{language}]", 'info');
492        $self->log("\n<code>\n$code\n</code>", 'info');
493        
494        # create temporary intermediate file to execute code
495        my $tmpdir = '/tmp/rap';
496        mkdir $tmpdir;
497        (my $fh, my $filename) = tempfile( DIR => $tmpdir, SUFFIX => '.bat' );
498        print $fh $code, "\n";
499        run_cmd( $filename, '', { async => 1 } );
500        
501        # FIXME: DELETE code inside temp-files as soon as possible!
502        #print $fh '';
503        
504        # TODO: delete FILE completely!
505        # required for this: wait until execution has finished, then unlink....
506        # but: "how to wait until execution is finished"?
507        # i believe the best is to spawn *another* process directly from here,
508        # let's call it 'watcher-agent'.
509        # This one should monitor a certain running process and delete its
510        # executable file after it has finished execution.
511        # Possible extensions could be:
512        #   keep track of all stuff sent to STDOUT or STDERR and
513        #   send that stuff to the task-owner indirectly (not via shell/console)
514        #   (e.g. via email, by posting report to a newsgroup or publishing on a specified web-page: use mod-dav!)
515        
516      } elsif ($args->{language} eq 'bash') {
517        $self->log("FIXME: - - - - - -- - - --  BASH -  - -    -  - -   -    --   - ", 'error');
518    
519      } elsif ($args->{language} eq 'perl') {
520        
521        # reporting
522        #$self->log("Executing some arbitrary unsigned code (probably unsafe). [language=$args->{language}]", 'info');
523        #$self->log("\n<code>\n$code\n</code>", 'info');
524        
525        # do it
526        #eval($code);
527        #$self->log("\n<code>\n$code\n</code>", 'error') if $@;
528        
529      } else {
530        $self->log("FIXME: Script language '$args->{language}' not implemented.", 'error');
531        
532      }
533    
534    }
535    
536  1;  1;
537  __END__  __END__
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