<?php

/* http://sed.free.fr/git.txt
 * 2014-05-16 version 1.0
 * public domain
 */

/* typical use:
 * put name.git.php (this file) and name.git.data (file produced by the "find"
 * command described below) in /some/url and the following works:
 *   git clone http://sed.free.fr/some/url/name.git
 * you must set the var $d (with the "find" stuff, see below) and change the
 * fopen line
 */

/*
 * free.fr uses "multiviews", so if you created x.php in a directory
 * you can acces /url/x/a/b/c in place of /url/x.php/a/b/c and x.php
 * is called. You can simulate a directory structure. I use that trick
 * to serve a git repository stored in one file (because I don't want
 * zillions of directories/files). This php file does that. Dig the fopen line
 * to set the filename to use.
 *
 * to create data file named "data" containing your git repository:
 * find test.git -type f -exec ./append.sh {} data "/test2-git/" \;
 * where append.sh is: << EOF
#!/bin/sh
#$1 is file to add
#$2 is container file
#$3 is top of URL to add in front of file name
touch $2
echo -n \"$3$1\""=>array("
echo -n `ls -l $2|cut -f 5 -d ' '`,
echo    `ls -l $1|cut -f 5 -d ' '`"),"
cat $1 >> $2
EOF
 * then put what "find" outputs into the $d array below
 */

/* git stuff:
 * init a git thing: git init
 * add files to it:  git add *
 * first commit:     git commit
 * copy repo:        git clone --bare /path/to/repo
 *    you can remove branches, hooks, maybe others
 * then you can use this as a master git repo
 * when done:        git update-server-info
 *    to be run after a commit/push, before putting all back to free.fr
 * run the "find" stuff, modify the php file, put the php and data files
 * to the server, done.
 */

/* obviously, you can remove all those useless comments in production... */

function err()
{
  $protocol = (isset($_SERVER['SERVER_PROTOCOL']) ?
                   $_SERVER['SERVER_PROTOCOL'] : 'HTTP/1.0');
  header($protocol . ' 404 Not Found');
  $GLOBALS['http_response_code'] = 404;
  exit();
}

if (!isset($_SERVER) || !isset($_SERVER['REQUEST_URI'])) err();
$u = $_SERVER['REQUEST_URI'];
$u = strtok($u, '?');

$d = array(
"/test2-git/test.git/HEAD"=>array(1600,23),
"/test2-git/test.git/config"=>array(1623,66),
"/test2-git/test.git/objects/6b/7531ef13d13d4ec06bdd79094e10543afd6f25"=>array(1689,153),
"/test2-git/test.git/objects/69/b7b6c75a5737b46c3b90694e15be80846d5671"=>array(1842,82),
"/test2-git/test.git/objects/bc/f7e4ce88361d3191f4286e1e115e61b9c6bc46"=>array(1924,22),
"/test2-git/test.git/objects/a0/bbb647f93c8abbf2e9697b65072dc088c184f2"=>array(1946,78),
"/test2-git/test.git/objects/22/cdbb9f7e76404b23a6948428afd643799ea0c4"=>array(2024,28),
"/test2-git/test.git/objects/44/2bb5baa6b7ac8bc4551b57206a98915e6cedc0"=>array(2052,46),
"/test2-git/test.git/objects/a7/6c01b2eb0ac400d3a505f8740715008d960df8"=>array(2098,51),
"/test2-git/test.git/objects/f2/02246f34750a339d6443ac55a716332fcd69d0"=>array(2149,51),
"/test2-git/test.git/objects/d5/efbdda18c275cce018de620022193e9927c140"=>array(2200,118),
"/test2-git/test.git/objects/info/packs"=>array(2318,1),
"/test2-git/test.git/objects/fa/555a4d38f0407e4b97f7a65ef42f0695a55d78"=>array(2319,34),
"/test2-git/test.git/objects/f7/dd1ed0ea791873917afd6828870f614a9b2e7b"=>array(2353,159),
"/test2-git/test.git/objects/83/6d1e3f81e3cf21e950108f58616c307191067e"=>array(2512,78),
"/test2-git/test.git/objects/de/7dd6e7bbddea9609b9dfe8cf82c598551d398a"=>array(2590,153),
"/test2-git/test.git/objects/b5/0d269c86b61aac4a004a849493ab5649e56dc4"=>array(2743,51),
"/test2-git/test.git/objects/29/8b1e6b9377b4b1c00935b43eedd3106f5214a1"=>array(2794,154),
"/test2-git/test.git/objects/03/4427d724a30d1c1e2a1d664b88dd9b5981a226"=>array(2948,152),
"/test2-git/test.git/info/refs"=>array(3100,59),
"/test2-git/test.git/refs/heads/master"=>array(3159,41),
);

if (!isset($d[$u])) err();

header("Content-Type: application/octet-stream");
header("Content-Length: " . $d[$u][1]);
$f = fopen("test.git.data", "r");
fseek($f, $d[$u][0]);
$len = $d[$u][1];
while ($len >= 4096) {
  echo fread($f, 4096);
  $len -= 4096;
}
if ($len)
  echo fread($f, $len);
fclose($f);

?>