bug symfony#20688 [FrameworkBundle] Resolve env params in debug:config command (nicolas-grekas)

This PR was merged into the 3.2 branch.

Discussion
----------

[FrameworkBundle] Resolve env params in debug:config command

| Q             | A
| ------------- | ---
| Branch?       | 3.2
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | symfony#20696
| License       | MIT
| Doc PR        | -

Displays e.g. `url: '%env(DATABASE_URL)%'`
instead of `url: env_DATABASE_URL_b188317b1d181eca5f0be35aefdae9c4`
when doing `bin/console debug:config doctrine`

Commits
-------

695d100 [FrameworkBundle] Resolve env params in debug:config command

Author: nicolas-grekas

src/Symfony/Bundle/FrameworkBundle/Command/ConfigDebugCommand.php

@@ -80,7 +80,7 @@ protected function execute(InputInterface $input, OutputInterface $output)
 
         $this->validateConfiguration($extension, $configuration);
 
-        $configs = $container->getParameterBag()->resolveValue($configs);
+        $configs = $container->resolveEnvPlaceholders($container->getParameterBag()->resolveValue($configs));
 
         $processor = new Processor();
         $config = $processor->processConfiguration($configuration, $configs);

src/Symfony/Bundle/FrameworkBundle/Command/ContainerDebugCommand.php

@@ -19,6 +19,7 @@
 use Symfony\Component\Console\Style\SymfonyStyle;
 use Symfony\Component\DependencyInjection\Loader\XmlFileLoader;
 use Symfony\Component\DependencyInjection\ContainerBuilder;
+use Symfony\Component\DependencyInjection\ParameterBag\ParameterBag;
 use Symfony\Component\Config\FileLocator;
 
 /**
@@ -96,7 +97,11 @@ protected function execute(InputInterface $input, OutputInterface $output)
         $object = $this->getContainerBuilder();
 
         if ($input->getOption('parameters')) {
-            $object = $object->getParameterBag();
+            $parameters = array();
+            foreach ($object->getParameterBag()->all() as $k => $v) {
+                $parameters[$k] = $object->resolveEnvPlaceholders($v);
+            }
+            $object = new ParameterBag($parameters);
             $options = array();
         } elseif ($parameter = $input->getOption('parameter')) {
             $options = array('parameter' => $parameter);

src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/Descriptor.php

@@ -57,7 +57,7 @@ public function describe(OutputInterface $output, $object, array $options = arra
                 $this->describeContainerService($this->resolveServiceDefinition($object, $options['id']), $options);
                 break;
             case $object instanceof ContainerBuilder && isset($options['parameter']):
-                $this->describeContainerParameter($object->getParameter($options['parameter']), $options);
+                $this->describeContainerParameter($object->resolveEnvPlaceholders($object->getParameter($options['parameter'])), $options);
                 break;
             case $object instanceof ContainerBuilder:
                 $this->describeContainerServices($object, $options);

src/Symfony/Component/DependencyInjection/ContainerBuilder.php

@@ -1026,34 +1026,47 @@ public function getExpressionLanguageProviders()
     }
 
     /**
-     * Resolves env parameter placeholders in a string.
+     * Resolves env parameter placeholders in a string or an array.
      *
-     * @param string      $string    The string to resolve
+     * @param mixed       $value     The value to resolve
      * @param string|null $format    A sprintf() format to use as replacement for env placeholders or null to use the default parameter format
      * @param array       &$usedEnvs Env vars found while resolving are added to this array
      *
      * @return string The string with env parameters resolved
      */
-    public function resolveEnvPlaceholders($string, $format = null, array &$usedEnvs = null)
+    public function resolveEnvPlaceholders($value, $format = null, array &$usedEnvs = null)
     {
-        $bag = $this->getParameterBag();
-        $envPlaceholders = $bag instanceof EnvPlaceholderParameterBag ? $bag->getEnvPlaceholders() : $this->envPlaceholders;
-
         if (null === $format) {
             $format = '%%env(%s)%%';
         }
 
+        if (is_array($value)) {
+            $result = array();
+            foreach ($value as $k => $v) {
+                $result[$this->resolveEnvPlaceholders($k, $format, $usedEnvs)] = $this->resolveEnvPlaceholders($v, $format, $usedEnvs);
+            }
+
+            return $result;
+        }
+
+        if (!is_string($value)) {
+            return $value;
+        }
+
+        $bag = $this->getParameterBag();
+        $envPlaceholders = $bag instanceof EnvPlaceholderParameterBag ? $bag->getEnvPlaceholders() : $this->envPlaceholders;
+
         foreach ($envPlaceholders as $env => $placeholders) {
             foreach ($placeholders as $placeholder) {
-                if (false !== stripos($string, $placeholder)) {
-                    $string = str_ireplace($placeholder, sprintf($format, $env), $string);
+                if (false !== stripos($value, $placeholder)) {
+                    $value = str_ireplace($placeholder, sprintf($format, $env), $value);
                     $usedEnvs[$env] = $env;
                     $this->envCounters[$env] = isset($this->envCounters[$env]) ? 1 + $this->envCounters[$env] : 1;
                 }
             }
         }
 
-        return $string;
+        return $value;
     }
 
     /**

src/Symfony/Component/DependencyInjection/Tests/ContainerBuilderTest.php

@@ -495,7 +495,7 @@ public function testMerge()
         $bag = new EnvPlaceholderParameterBag();
         $bag->get('env(Foo)');
         $config = new ContainerBuilder($bag);
-        $config->resolveEnvPlaceholders($bag->get('env(Bar)'));
+        $this->assertSame(array('%env(Bar)%'), $config->resolveEnvPlaceholders(array($bag->get('env(Bar)'))));
         $container->merge($config);
         $this->assertEquals(array('Foo' => 0, 'Bar' => 1), $container->getEnvCounters());
     }