phorge-phorge/resources/sql/autopatches/20141107.ssh.4.keymig.php

<?php

$table = new PhabricatorAuthSSHKey();
$conn_w = $table->establishConnection('w');

echo pht('Updating SSH public key indexes...')."\n";

$keys = new LiskMigrationIterator($table);
foreach ($keys as $key) {
  $id = $key->getID();

  echo pht('Updating key %d...', $id)."\n";

  try {
    $hash = $key->toPublicKey()->getHash();
  } catch (Exception $ex) {
    echo pht('Key has bad format! Removing key.')."\n";
    queryfx(
      $conn_w,
      'DELETE FROM %T WHERE id = %d',
      $table->getTableName(),
      $id);
    continue;
  }

  $collision = queryfx_all(
    $conn_w,
    'SELECT * FROM %T WHERE keyIndex = %s AND id < %d',
    $table->getTableName(),
    $hash,
    $key->getID());
  if ($collision) {
    echo pht('Key is a duplicate! Removing key.')."\n";
    queryfx(
      $conn_w,
      'DELETE FROM %T WHERE id = %d',
      $table->getTableName(),
      $id);
    continue;
  }

  queryfx(
    $conn_w,
    'UPDATE %T SET keyIndex = %s WHERE id = %d',
    $table->getTableName(),
    $hash,
    $key->getID());
}

echo pht('Done.')."\n";