<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Config\Definition\Dumper;
use Symfony\Component\Config\Definition\ArrayNode;
use Symfony\Component\Config\Definition\ConfigurationInterface;
use Symfony\Component\Config\Definition\EnumNode;
use Symfony\Component\Config\Definition\NodeInterface;
use Symfony\Component\Config\Definition\PrototypedArrayNode;
use Symfony\Component\Config\Definition\ScalarNode;
use Symfony\Component\Yaml\Inline;
/**
* Dumps a Yaml reference configuration for the given configuration/node instance.
*
* @author Kevin Bond <kevinbond@gmail.com>
*/
class YamlReferenceDumper
{
private $reference;
public function dump(ConfigurationInterface $configuration)
{
return $this->dumpNode($configuration->getConfigTreeBuilder()->buildTree());
}
public function dumpAtPath(ConfigurationInterface $configuration, string $path)
{
$rootNode = $node = $configuration->getConfigTreeBuilder()->buildTree();
foreach (explode('.', $path) as $step) {
if (!$node instanceof ArrayNode) {
throw new \UnexpectedValueException(sprintf('Unable to find node at path "%s.%s".', $rootNode->getName(), $path));
}
/** @var NodeInterface[] $children */
$children = $node instanceof PrototypedArrayNode ? $this->getPrototypeChildren($node) : $node->getChildren();
foreach ($children as $child) {
if ($child->getName() === $step) {
$node = $child;
continue 2;
}
}
throw new \UnexpectedValueException(sprintf('Unable to find node at path "%s.%s".', $rootNode->getName(), $path));
}
return $this->dumpNode($node);
}
public function dumpNode(NodeInterface $node)
{
$this->reference = '';
$this->writeNode($node);
$ref = $this->reference;
$this->reference = null;
return $ref;
}
private function writeNode(NodeInterface $node, NodeInterface $parentNode = null, int $depth = 0, bool $prototypedArray = false)
{
$comments = [];
$default = '';
$defaultArray = null;
$children = null;
$example = $node->getExample();
// defaults
if ($node instanceof ArrayNode) {
$children = $node->getChildren();
if ($node instanceof PrototypedArrayNode) {
$children = $this->getPrototypeChildren($node);
}
if (!$children) {
if ($node->hasDefaultValue() && \count($defaultArray = $node->getDefaultValue())) {
$default = '';
} elseif (!\is_array($example)) {
$default = '[]';
}
}
} elseif ($node instanceof EnumNode) {
$comments[] = 'One of '.implode('; ', array_map('json_encode', $node->getValues()));
$default = $node->hasDefaultValue() ? Inline::dump($node->getDefaultValue()) : '~';
} else {
$default = '~';
if ($node->hasDefaultValue()) {
$default = $node->getDefaultValue();
if (\is_array($default)) {
if (\count($defaultArray = $node->getDefaultValue())) {
$default = '';
} elseif (!\is_array($example)) {
$default = '[]';
}
} else {
$default = Inline::dump($default);
}
}
}
// required?
if ($node->isRequired()) {
$comments[] = 'Required';
}
// deprecated?
if ($node->isDeprecated()) {
$deprecation = $node->getDeprecation($node->getName(), $parentNode ? $parentNode->getPath() : $node->getPath());
$comments[] = sprintf('Deprecated (%s)', ($deprecation['package'] || $deprecation['version'] ? "Since {$deprecation['package']} {$deprecation['version']}: " : '').$deprecation['message']);
}
// example
if ($example && !\is_array($example)) {
$comments[] = 'Example: '.$example;
}
$default = '' != (string) $default ? ' '.$default : '';
$comments = \count($comments) ? '# '.implode(', ', $comments) : '';
$key = $prototypedArray ? '-' : $node->getName().':';
$text = rtrim(sprintf('%-21s%s %s', $key, $default, $comments), ' ');
if ($info = $node->getInfo()) {
$this->writeLine('');
// indenting multi-line info
$info = str_replace("\n", sprintf("\n%".($depth * 4).'s# ', ' '), $info);
$this->writeLine('# '.$info, $depth * 4);
}
$this->writeLine($text, $depth * 4);
// output defaults
if ($defaultArray) {
$this->writeLine('');
$message = \count($defaultArray) > 1 ? 'Defaults' : 'Default';
$this->writeLine('# '.$message.':', $depth * 4 + 4);
$this->writeArray($defaultArray, $depth + 1);
}
if (\is_array($example)) {
$this->writeLine('');
$message = \count($example) > 1 ? 'Examples' : 'Example';
$this->writeLine('# '.$message.':', $depth * 4 + 4);
$this->writeArray($example, $depth + 1);
}
if ($children) {
foreach ($children as $childNode) {
$this->writeNode($childNode, $node, $depth + 1, $node instanceof PrototypedArrayNode && !$node->getKeyAttribute());
}
}
}
/**
* Outputs a single config reference line.
*/
private function writeLine(string $text, int $indent = 0)
{
$indent = \strlen($text) + $indent;
$format = '%'.$indent.'s';
$this->reference .= sprintf($format, $text)."\n";
}
private function writeArray(array $array, int $depth)
{
$isIndexed = array_values($array) === $array;
foreach ($array as $key => $value) {
if (\is_array($value)) {
$val = '';
} else {
$val = $value;
}
if ($isIndexed) {
$this->writeLine('- '.$val, $depth * 4);
} else {
$this->writeLine(sprintf('%-20s %s', $key.':', $val), $depth * 4);
}
if (\is_array($value)) {
$this->writeArray($value, $depth + 1);
}
}
}
private function getPrototypeChildren(PrototypedArrayNode $node): array
{
$prototype = $node->getPrototype();
$key = $node->getKeyAttribute();
// Do not expand prototype if it isn't an array node nor uses attribute as key
if (!$key && !$prototype instanceof ArrayNode) {
return $node->getChildren();
}
if ($prototype instanceof ArrayNode) {
$keyNode = new ArrayNode($key, $node);
$children = $prototype->getChildren();
if ($prototype instanceof PrototypedArrayNode && $prototype->getKeyAttribute()) {
$children = $this->getPrototypeChildren($prototype);
}
// add children
foreach ($children as $childNode) {
$keyNode->addChild($childNode);
}
} else {
$keyNode = new ScalarNode($key, $node);
}
$info = 'Prototype';
if (null !== $prototype->getInfo()) {
$info .= ': '.$prototype->getInfo();
}
$keyNode->setInfo($info);
return [$key => $keyNode];
}
}