From a51563300c77e339300d2fbeff796aea95f3d0e1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=A9r=C3=B4me=20Tanghe?=
 <jerome.tanghe@les-tilleuls.coop>
Date: Tue, 9 Oct 2018 10:13:01 +0200
Subject: [PATCH] Warning about the UNIX permissions lost if unzip command is
 not installed.

Some packages provide (such as Symfony Panther or Dusk) executable files, but
as PHP's unzip extension does not handle UNIX permissions, those files will
lose their executable ones.
---
 src/Composer/Downloader/ZipDownloader.php | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/Composer/Downloader/ZipDownloader.php b/src/Composer/Downloader/ZipDownloader.php
index 5ca7a2dab..6534db3d8 100644
--- a/src/Composer/Downloader/ZipDownloader.php
+++ b/src/Composer/Downloader/ZipDownloader.php
@@ -69,7 +69,8 @@ class ZipDownloader extends ArchiveDownloader
 
             if (!self::$isWindows && !self::$hasSystemUnzip) {
                 $this->io->writeError("<warning>As there is no 'unzip' command installed zip files are being unpacked using the PHP zip extension.</warning>");
-                $this->io->writeError("<warning>This may cause invalid reports of corrupted archives. Installing 'unzip' may remediate them.</warning>");
+                $this->io->writeError("<warning>This may cause invalid reports of corrupted archives. Besides, any UNIX permissions (e.g. executable) defined in the archives will be lost.</warning>");
+                $this->io->writeError("<warning>Installing 'unzip' may remediate them.</warning>");
             }
         }