gnu-social/bin/generate_entity_diagrams

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#!/bin/php
<?php
define('INSTALL_DIR', dirname(__DIR__));
require INSTALL_DIR . '/vendor/autoload.php';
use App\Util\Common;
use App\Util\HTML as H;
use Functional as F;
$template = '
graph database {
%tables%
%edges%
}
';
$files = glob(INSTALL_DIR . '/src/Entity/*.php');
$tables = [];
$edges = [];
foreach ($files as $file) {
require_once $file;
$declared = get_declared_classes();
$class = end($declared);
$schema = $class::schemaDef();
$table = $schema['name'];
$fields = [['name' => $table, 'type' => '']];
foreach ($schema['fields'] as $name => $opts) {
$fields[] = [
'name' => $name,
'type' => ": {$opts['type']}" . ($opts['type'] == 'varchar' ? "({$opts['length']})" : ''),
];
}
if (isset($schema['foreign keys'])) {
foreach ($schema['foreign keys'] as $name => $map) {
// Patern matching like above would be nice
list($foreign_table,
$keys) = $map;
$local_key = array_keys($keys)[0];
$foreign_key = $keys[$local_key];
$edges[] = "{$table}:{$local_key} -- {$foreign_table}:{$foreign_key}";
}
}
$cell = function ($field) {
$def = $field['name'] . $field['type'];
return ['tr' => ['td' => ['attrs' => ['port' => $field['name']], $def]]];
};
$html = ['table' => array_merge(
['attrs' => ['border' => '0', 'cellborder' => '1', 'cellspacing' => '0']],
F\map($fields, $cell)),
];
$tables[] = Common::indent("{$table} [shape=none, label=<\n" . Common::indent(H::html($html)) . "\n>]");
}
$replace = [
'/%tables%/' => Common::indent(implode("\n", $tables)),
'/%edges%/' => Common::indent(implode("\n", $edges)),
// '/_/' => '\textunderscore ',
];
$out = $template;
foreach ($replace as $from => $to) {
$out = preg_replace($from, $to, $out);
}
$path = dirname(__DIR__) . '/DOCUMENTATION/database';
$outfile = $path . '/database.dot';
file_put_contents($outfile, $out);
system("neato -Goverlap=false -Gsplines=true -Tpdf {$path}/database.dot -o {$path}/database.pdf");
echo "Generated database diagram. See {$path}/database.pdf\n";