[5.2] New Artisan command: "config:view"

src/Illuminate/Foundation/Console/ConfigViewCommand.php

@@ -0,0 +1,120 @@
+<?php
+
+namespace Illuminate\Foundation\Console;
+
+use Illuminate\Console\Command;
+
+class ConfigViewCommand extends Command
+{
+    /**
+     * The name and signature of the console command.
+     *
+     * @var string
+     */
+    protected $signature = 'config:view
+        {section? : Section of your config that you want to view (e.g. "app" or "database.connections.mysql")}';
+
+    /**
+     * The console command description.
+     *
+     * @var string
+     */
+    protected $description = 'View the full configuration for this environment.';
+
+    /**
+     * Execute the console command.
+     *
+     * @return void
+     */
+    public function fire()
+    {
+        $section = $this->argument('section');
+        if (! empty($section)) {
+            if (! array_key_exists($section, $this->laravel['config'])) {
+                $this->error($section.' does not exist in your configuration.');
+
+                return;
+            }
+
+            // If the requested string is a string, and not something that can be displayed in a table, then just print
+            // it out in the console.
+            $config = $this->laravel['config'][$section];
+            if (! is_array($config)) {
+                $this->line('<comment>'.$config.'</comment>');
+
+                return;
+            }
+
+            $configs = [
+                $section => $config,
+            ];
+        } else {
+            $configs = $this->laravel['config'];
+            ksort($configs);
+        }
+
+        foreach ($configs as $section => $config) {
+            $depth = $this->getConfigDepth($config);
+            $tree = $this->generateTree($config, $depth);
+            $this->line('<info>Configuration:</info> <comment>'.$section.'</comment>');
+            $this->table([/* don't display any headers */], $tree, 'default');
+        }
+    }
+
+    /**
+     * Take a configuration array, recursively traverse and create a padded tree array to output as a table.
+     *
+     * @param  array  $data
+     * @param  int  $total_depth
+     * @param  int  $current_depth
+     * @return array
+     */
+    private function generateTree($data, $total_depth, $current_depth = 1)
+    {
+        ksort($data);
+        $table = [];
+        foreach ($data as $key => $value) {
+            $row = [];
+            if ($current_depth > 1) {
+                $row = array_merge($row, array_fill(0, ($current_depth - 1), ''));
+            }
+
+            $row[] = '<comment>'.$key.'</comment>';
+            if (! is_array($value)) {
+                $row[] = (is_bool($value)) ? (($value) ? 'true' : 'false') : $value;
+            }
+
+            // Pad the row out with empty columns equal to the total subtracting the current recursive depth.
+            $empty_columns = ($total_depth - $current_depth);
+            $empty_columns = array_fill(count($row) - 1, $empty_columns, '');
+            $row = array_merge($row, $empty_columns);
+            $table[] = $row;
+            if (is_array($value)) {
+                $table = array_merge($table, $this->generateTree($value, $total_depth, $current_depth + 1));
+            }
+        }
+
+        return $table;
+    }
+
+    /**
+     * Determine the depth of this configuration so we know how to pad the outputted table of data.
+     *
+     * @param  array  $config
+     * @return int
+     */
+    private function getConfigDepth($config)
+    {
+        $total_depth = 1;
+        foreach ($config as $data) {
+            if (is_array($data)) {
+                $depth = $this->getConfigDepth($data) + 1;
+                if ($depth > $total_depth) {
+                    $total_depth = $depth;
+                }
+            }
+        }
+
+        return $total_depth;
+    }
+}

src/Illuminate/Foundation/Providers/ArtisanServiceProvider.php

@@ -28,6 +28,7 @@
 use Illuminate\Routing\Console\MiddlewareMakeCommand;
 use Illuminate\Foundation\Console\ConfigCacheCommand;
 use Illuminate\Foundation\Console\ConfigClearCommand;
+use Illuminate\Foundation\Console\ConfigViewCommand;
 use Illuminate\Foundation\Console\ConsoleMakeCommand;
 use Illuminate\Foundation\Console\EnvironmentCommand;
 use Illuminate\Foundation\Console\KeyGenerateCommand;
@@ -58,6 +59,7 @@ class ArtisanServiceProvider extends ServiceProvider
         'ClearResets' => 'command.auth.resets.clear',
         'ConfigCache' => 'command.config.cache',
         'ConfigClear' => 'command.config.clear',
+        'ConfigView' => 'command.config.view',
         'Down' => 'command.down',
         'Environment' => 'command.environment',
         'KeyGenerate' => 'command.key.generate',
@@ -214,6 +216,18 @@ protected function registerConfigClearCommand()
         });
     }
 
+    /**
+     * Register the command.
+     *
+     * @return void
+     */
+    protected function registerConfigViewCommand()
+    {
+        $this->app->singleton('command.config.view', function ($app) {
+            return new ConfigViewCommand;
+        });
+    }
+
     /**
      * Register the command.
      *