From 15a448fe343def838ef97b9d3154b5aa9b34a1fe Mon Sep 17 00:00:00 2001
From: Aaron Latham-Ilari <breaks.nz@gmail.com>
Date: Tue, 12 Aug 2014 14:42:12 +1200
Subject: [PATCH] fixes some issues with always-install option

---
 ...onDestructiveArchiveInstallerInstaller.php | 21 ++++++++++++++-----
 1 file changed, 16 insertions(+), 5 deletions(-)

diff --git a/src/ABC/Composer/NonDestructiveArchiveInstallerInstaller.php b/src/ABC/Composer/NonDestructiveArchiveInstallerInstaller.php
index 174bce3..d3b4c7f 100644
--- a/src/ABC/Composer/NonDestructiveArchiveInstallerInstaller.php
+++ b/src/ABC/Composer/NonDestructiveArchiveInstallerInstaller.php
@@ -51,6 +51,14 @@ public function update(InstalledRepositoryInterface $repo, PackageInterface $ini
         $this->downloadAndExtractFile($package);
     }
 
+    /**
+     * {@inheritDoc}
+     */
+    public function isInstalled(InstalledRepositoryInterface $repo, PackageInterface $package) {
+        if ($this->alwaysInstall($package)) return false;
+        return parent::isInstalled($repo, $package);
+    }
+
     /**
      * {@inheritDoc}
      */
@@ -66,6 +74,13 @@ public function install(InstalledRepositoryInterface $repo, PackageInterface $pa
         $this->downloadAndExtractFile($package);
     }
 
+    protected function alwaysInstall(PackageInterface $package) {
+        $p_extra = $package->getExtra();
+        return isset($p_extra['always-install']) && strtolower($p_extra['always-install']) == "false"
+            ? false
+            : true;
+    }
+
     /**
      * Downloads and extracts the package, only if the URL to download has not been downloaded before.
      *
@@ -90,10 +105,6 @@ private function downloadAndExtractFile(PackageInterface $package) {
                 ? strtolower($p_extra['omit-first-directory']) == "true"
                 : false;
 
-            $alwaysInstall = isset($p_extra['always-install']) && strtolower($p_extra['always-install']) == "false"
-                ? false
-                : true;
-
             $targetDir = isset($p_extra['target-dir'])
                 ? realpath('./' . trim($p_extra['target-dir'], '/')) . '/'
                 : $this->getInstallPath($package);
@@ -112,7 +123,7 @@ private function downloadAndExtractFile(PackageInterface $package) {
             }
 
             // Has archive has been downloaded
-            if (self::getLastDownloadedFileUrl($package) == $url && !$alwaysInstall) return;
+            if (self::getLastDownloadedFileUrl($package) == $url && !$this->alwaysInstall($package)) return;
 
             // SSL Check
             if (!extension_loaded('openssl') && 0 === strpos($url, 'https:'))