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#!/usr/bin/env perl
use strict;
use warnings;
use JSON;
use IO::All;
use Pod::Usage;
pod2usage(1) unless scalar(@ARGV) > 0;
my @specs;
foreach (@ARGV) {
push @specs, read_from_json($_);
}
print << 'DOT';
digraph {
node [shape=record];
edge [arrowhead = odot, arrowtail = none];
DOT
my $has_interface = scalar(@specs) > 1;
if ($has_interface) {
my $top = $specs[0]->{name};
print " \"", $top, "\"\n";
print " [label=\"{\\N}\"];\n\n";
foreach my $spec (@specs) {
my $name = $spec->{meta}->{module} || $spec->{name};
print " \"", $top, "\" -> \"", $name, "\"\n\n";
}
}
my %meth;
foreach my $spec (@specs) {
my $name = $spec->{meta}->{module} || $spec->{name};
print " \"", $name, "\"\n";
print " [label=\"{";
print "«interface»\\n" if ($has_interface);
print "\\N|";
for my $name (sort keys %{$spec->{methods}}) {
die "duplicated $name" if exists $meth{$name};
$meth{$name} = 1;
my $desc = $spec->{methods}->{$name};
print $name, "(";
my $first = 1;
if ($desc->{required_payload}) {
print "payload";
$first = 0;
}
for (@{$desc->{required_params}}) {
print ", " unless $first;
print $_;
$first = 0;
}
if ($desc->{optional_params}) {
print " " unless $first;
}
for (@{$desc->{optional_params}}) {
print "\\[";
print ", " unless $first;
print $_, "\\]";
$first = 0;
}
print ")";
print " ⊗" if $desc->{authentication};
print "\\l";
}
print "}\"];\n\n";
}
print "}\n";
sub read_from_json {
my ($fname) = @_;
my $content < io $fname;
return JSON::decode_json($content);
}
__END__
=head1 NAME
spore2dot
=head1 SYNOPSIS
spore2dot.pl api1.json [api2.json, ...] > api.dot
=cut
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