/**
* Ensures that a specific config diff does not contain unwanted changes.
*
* @param \Drupal\Component\Diff\Diff $result
* The diff result for the passed in config name.
* @param string $config_name
* The config name to check.
* @param array $skipped_config
* An array of skipped config, keyed by string. If the value is TRUE, the
* entire file will be ignored, otherwise it's an array of strings which are
* ignored.
*
* @throws \Exception
* Thrown when a configuration is different.
*/
protected function assertConfigDiff(Diff $result, $config_name, array $skipped_config)
{
foreach ($result->getEdits() as $op) {
switch (get_class($op)) {
case 'Drupal\\Component\\Diff\\Engine\\DiffOpCopy':
// Nothing to do, a copy is what we expect.
break;
case 'Drupal\\Component\\Diff\\Engine\\DiffOpDelete':
case 'Drupal\\Component\\Diff\\Engine\\DiffOpChange':
// It is not part of the skipped config, so we can directly throw the
// exception.
if (!in_array($config_name, array_keys($skipped_config))) {
throw new \Exception($config_name . ': ' . var_export($op, TRUE));
}
// Allow to skip entire config files.
if ($skipped_config[$config_name] === TRUE) {
continue;
}
// Allow to skip some specific lines of imported config files.
// Ensure that the only changed lines are the ones we marked as
// skipped.
$all_skipped = TRUE;
$changes = get_class($op) == 'Drupal\\Component\\Diff\\Engine\\DiffOpDelete' ? $op->orig : $op->closing;
foreach ($changes as $closing) {
// Skip some of the changes, as they are caused by module install
// code.
$found = FALSE;
if (!empty($skipped_config[$config_name])) {
foreach ($skipped_config[$config_name] as $line) {
if (strpos($closing, $line) !== FALSE) {
$found = TRUE;
break;
}
}
}
$all_skipped = $all_skipped && $found;
}
if (!$all_skipped) {
throw new \Exception($config_name . ': ' . var_export($op, TRUE));
}
break;
case 'Drupal\\Component\\Diff\\Engine\\DiffOpAdd':
// The _core property does not exist in the default config.
if ($op->closing[0] === '_core:') {
continue;
}
foreach ($op->closing as $closing) {
// The UUIDs don't exist in the default config.
if (strpos($closing, 'uuid: ') === 0) {
continue;
}
throw new \Exception($config_name . ': ' . var_export($op, TRUE));
}
break;
default:
throw new \Exception($config_name . ': ' . var_export($op, TRUE));
break;
}
}
}
/**
* Format a diff.
*
* @param \Drupal\Component\Diff\Diff $diff
* A Diff object.
*
* @return string
* The formatted output.
*/
public function format(Diff $diff)
{
$xi = $yi = 1;
$block = FALSE;
$context = array();
$nlead = $this->leading_context_lines;
$ntrail = $this->trailing_context_lines;
$this->_start_diff();
foreach ($diff->getEdits() as $edit) {
if ($edit->type == 'copy') {
if (is_array($block)) {
if (sizeof($edit->orig) <= $nlead + $ntrail) {
$block[] = $edit;
} else {
if ($ntrail) {
$context = array_slice($edit->orig, 0, $ntrail);
$block[] = new DiffOpCopy($context);
}
$this->_block($x0, $ntrail + $xi - $x0, $y0, $ntrail + $yi - $y0, $block);
$block = FALSE;
}
}
$context = $edit->orig;
} else {
if (!is_array($block)) {
$context = array_slice($context, sizeof($context) - $nlead);
$x0 = $xi - sizeof($context);
$y0 = $yi - sizeof($context);
$block = array();
if ($context) {
$block[] = new DiffOpCopy($context);
}
}
$block[] = $edit;
}
if ($edit->orig) {
$xi += sizeof($edit->orig);
}
if ($edit->closing) {
$yi += sizeof($edit->closing);
}
}
if (is_array($block)) {
$this->_block($x0, $xi - $x0, $y0, $yi - $y0, $block);
}
$end = $this->_end_diff();
if (!empty($xi)) {
$this->line_stats['counter']['x'] += $xi;
}
if (!empty($yi)) {
$this->line_stats['counter']['y'] += $yi;
}
return $end;
}