From bd83eb93bfc855ce30e0c21c829c92cba1b4c04b Mon Sep 17 00:00:00 2001
From: Smasty <hello@smasty.net>
Date: Sun, 24 Jun 2012 12:14:13 +0300
Subject: [PATCH] ConsoleIO::askAndHideAnswer - added support for zsh, ksh and
 csh shells.

---
 src/Composer/IO/ConsoleIO.php | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/src/Composer/IO/ConsoleIO.php b/src/Composer/IO/ConsoleIO.php
index 08872baf7..1cc0fc1cf 100644
--- a/src/Composer/IO/ConsoleIO.php
+++ b/src/Composer/IO/ConsoleIO.php
@@ -162,10 +162,18 @@ class ConsoleIO implements IOInterface
             return $value;
         }
 
-        // handle other OSs with bash if available to hide the answer
-        if ('OK' === rtrim(shell_exec("/usr/bin/env bash -c 'echo OK'"))) {
+        // handle other OSs with bash/zsh/ksh/csh if available to hide the answer
+        $test = "/usr/bin/env %s -c 'echo OK' 2> /dev/null";
+        foreach(array('bash', 'zsh', 'ksh', 'csh') as $sh){
+            if('OK' === rtrim(shell_exec(sprintf($test, $sh)))){
+                $shell = $sh;
+                break;
+            }
+        }
+        if(isset($shell)){
             $this->write($question, false);
-            $command = "/usr/bin/env bash -c 'read -s mypassword && echo \$mypassword'";
+            $readCmd = ($shell === 'csh') ? 'set mypassword = $<' : 'read mypassword';
+            $command = sprintf("/usr/bin/env %s -c 'stty -echo; %s; stty echo; echo \$mypassword'", $shell, $readCmd);
             $value = rtrim(shell_exec($command));
             $this->write('');