From 8c0e45164cf0ae4faa8fcb120fc6711e16787332 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=A9r=C3=B4me=20Tamarelle?= <jerome@tamarelle.net>
Date: Sat, 14 Jul 2012 12:47:23 +0200
Subject: [PATCH] Create zipball / tarball feature Archives are cached in
 cache/archives/repo/tree to never generate the same tree archive twice.

---
 controllers/archiveController.php | 32 +++++++++++++++++++++++++++++++
 index.php                         |  3 +++
 2 files changed, 35 insertions(+)
 create mode 100644 controllers/archiveController.php

diff --git a/controllers/archiveController.php b/controllers/archiveController.php
new file mode 100644
index 0000000..f0e89f9
--- /dev/null
+++ b/controllers/archiveController.php
@@ -0,0 +1,32 @@
+<?php
+
+use Symfony\Component\HttpFoundation\StreamedResponse;
+
+$app->get('{repo}/{format}ball/{branch}', function($repo, $format, $branch) use($app) {
+    $repository = $app['git']->getRepository($app['git.repos'] . $repo);
+    $tree = $repository->getBranchTree($branch);
+
+    if (false === $tree) {
+        return $app->abort(404, 'Invalid commit or tree reference: '.$branch);
+    }
+
+    $file = $app['cache.archives'].DIRECTORY_SEPARATOR.$repo.DIRECTORY_SEPARATOR.substr($tree, 0, 2).DIRECTORY_SEPARATOR.substr($tree, 2).'.'.$format;
+
+    if (!file_exists($file)) {
+        $repository->createArchive($tree, $file, $format);
+    }
+
+    return new StreamedResponse(function () use($file) {
+        readfile($file);
+    }, 200, array(
+        'Content-type' => ('zip' === $format) ? 'application/zip' : 'application/x-tar',
+        'Content-Description' => 'File Transfer',
+        'Content-Disposition' => 'attachment; filename="'.$repo.'-'.substr($tree, 0, 6).'.'.$format.'"',
+        'Content-Transfer-Encoding' => 'binary',
+        'Content-Length' => filesize($file),
+    ));
+})->assert('format', '(zip|tar)')
+  ->assert('repo', '[\w-._]+')
+  ->assert('branch', '[\w-._]+')
+  ->value('format', 'zip')
+  ->bind('archive');
diff --git a/index.php b/index.php
index a6370a9..abf2694 100644
--- a/index.php
+++ b/index.php
@@ -22,6 +22,8 @@ $app['filetypes'] = $config['filetypes'];
 $app['hidden'] = isset($config['git']['hidden']) ? $config['git']['hidden'] : array();
 $config['git']['repositories'] = rtrim($config['git']['repositories'], DIRECTORY_SEPARATOR) . DIRECTORY_SEPARATOR;
 
+$app['cache.archives'] = __DIR__.DIRECTORY_SEPARATOR.'cache'.DIRECTORY_SEPARATOR.'archives';
+
 // Register Git and Twig service providersclass_path
 $app->register(new Silex\Provider\TwigServiceProvider(), array(
     'twig.path'       => __DIR__.'/views',
@@ -42,6 +44,7 @@ $app['twig'] = $app->share($app->extend('twig', function($twig, $app) {
 }));
 
 // Load controllers
+include 'controllers/archiveController.php';
 include 'controllers/indexController.php';
 include 'controllers/treeController.php';
 include 'controllers/blobController.php';