From 9b8a14179b55715534f76a095fbb0059958c1d36 Mon Sep 17 00:00:00 2001
From: Jordi Boggiano <j.boggiano@seld.be>
Date: Fri, 27 Nov 2015 10:28:57 +0000
Subject: [PATCH] Only list tree of packages required by root and not every
 installed package individually, refs #2600

---
 src/Composer/Command/ShowCommand.php | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/Composer/Command/ShowCommand.php b/src/Composer/Command/ShowCommand.php
index 6e3b312af..f428b330b 100644
--- a/src/Composer/Command/ShowCommand.php
+++ b/src/Composer/Command/ShowCommand.php
@@ -152,8 +152,16 @@ EOT
                 return 1;
             }
 
+            $rootPackage = $this->getComposer()->getPackage();
+            $rootRequires = array_map(
+                'strtolower',
+                array_keys(array_merge($rootPackage->getRequires(), $rootPackage->getDevRequires()))
+            );
+
             foreach ($installedRepo->getPackages() as $package) {
-                $this->displayPackageTree($package, $installedRepo, $repos, $output);
+                if (in_array($package->getName(), $rootRequires, true)) {
+                    $this->displayPackageTree($package, $installedRepo, $repos, $output);
+                }
             }
 
             return 0;