From 8756f54da09cbdcade84ed1c6c7e7a4a7e81686f Mon Sep 17 00:00:00 2001
From: "Marko H. Tamminen" <zumba@iki.fi>
Date: Wed, 16 Feb 2022 13:17:49 +0200
Subject: [PATCH] Handle missing license when showing license summary (#10537)

Fixes the issue of license summary command aborting when a package is
missing license information.
---
 src/Composer/Command/LicensesCommand.php | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/Composer/Command/LicensesCommand.php b/src/Composer/Command/LicensesCommand.php
index 5375ab08dcfc..a8aadd021adb 100644
--- a/src/Composer/Command/LicensesCommand.php
+++ b/src/Composer/Command/LicensesCommand.php
@@ -125,7 +125,8 @@ protected function execute(InputInterface $input, OutputInterface $output)
                 $usedLicenses = array();
                 foreach ($packages as $package) {
                     $license = $package instanceof CompletePackageInterface ? $package->getLicense() : array();
-                    $licenseName = $license[0];
+                    $licenseName =  array_key_exists(0, $license) ? $license[0] : 'none';
+
                     if (!isset($usedLicenses[$licenseName])) {
                         $usedLicenses[$licenseName] = 0;
                     }