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61 lines
1.2 KiB
61 lines
1.2 KiB
#!/usr/bin/env perl
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use 5.014;
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use strict;
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use warnings;
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use YAML;
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use Cwd 'abs_path';
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use Data::Dumper;
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use GraphViz;
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my $g = GraphViz->new();
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if($#ARGV!=1)
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{
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die "usage: show_flow.pl file.yml destfile.png\n";
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}
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my $filename = abs_path($ARGV[0]);
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my $outfilename = $ARGV[1];
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my $ylog = YAML::LoadFile($filename);
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my @prevs = ();
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my $name = '';
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my $action = '';
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my $prev;
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my $cont = 1;
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$g->add_node(name => 'END', shape =>'box');
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foreach my $i (@{$ylog->{'flow'}})
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{
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foreach my $key (keys %{$i})
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{
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#print "$key\n";
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if(($action, $name) = ($key =~ m/(exit|start|end)\|(\w+)/))
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{
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if ($action eq "start")
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{
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$prev = $prevs[-1];
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if ($prev)
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{
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$g->add_node(name => $name);
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$g->add_edge( $prev => $name, label => $cont++);
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}
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else
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{
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$g->add_node(name => $name, shape=> 'diamond');
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}
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push(@prevs, $name);
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}
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else
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{
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pop(@prevs); # this is me.
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$prev = $prevs[-1];
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if ($action eq "end") { $g->add_edge($name => $prev, label => $cont++); }
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else { @prevs = (); $g->add_edge($name => 'END', label => $cont++); }
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}
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}
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}
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}
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$g->as_png($outfilename);
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#EOF
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