Redmine

#!/usr/bin/php5 -q

<?php

// Requires PHP5 or the file_put_contents() function from PEAR::Compat

$source_dir = "/var/svn";	   // this is a directory with my svn repositories in it

$dest_dir = "/mnt/server/DS/SVN"; // this is where the svn dumps will go

$tmp_dir = "/tmp";		   // temp dir

$hashfile = "/tmp/hash/hashes.txt";// we only back up repositories which have changed

$date = system("date +%Y-%m-%d");

// read in the existing hash file if there is one

$hashes = array();

$hashlines = array();

if (file_exists($hashfile)) {

  $hashlines = file($hashfile);			

}

// build this into an useful array

foreach($hashlines as $hashline) {

  $key = substr($hashline,0,strpos($hashline,":"));

  $value = substr($hashline,strpos($hashline,":")+1);

  if ($key && $value) {

    $hashes[$key] = $value;			

  }

}

system("mkdir $dest_dir/backup");

system("chmod 755 $dest_dir/backup");

// loop through the repositories in the source directory

if ($handle = opendir($source_dir)) {

  while (false !== ($file = readdir($handle))) {

    if (is_dir($source_dir."/".$file) && $file != "." && $file != "..") {

      // generate a md5 hash for the contents of the repository

      $command = "svnlook info '$source_dir/$file'";

      // echo $command."\n";

      exec($command,$output);

      $md5 = trim(md5(trim(str_replace("\n","-",implode("\n",$output)))));

      if (!isset($hashes[$file]) || $hashes[$file] !== $md5) {

        // echo "dumping $file\n";

        $return = system("mkdir -p $tmp_dir/svn_backup/$file");

        $return = system("svnadmin hotcopy $source_dir/$file $tmp_dir/svn_backup/$file");

        $return = system("svnadmin dump -q $tmp_dir/svn_backup/$file | bzip2 -c > $dest_dir/backup/$file.bz2");

        $return = system("rm -Rf $tmp_dir/svn_backup/$file");

        $hashes[$file] = $md5;

      }

    }

  }

  //Compress repositories dumped

  system("tar -cf $dest_dir/$date.tar $dest_dir/backup");

  system("rm -r $dest_dir/backup*");

  //Remove oldest backup

  system("find $dest_dir -amin +6000 -exec rm '{}'");

 closedir($handle);

}

$hashelines = "";

foreach($hashes as $key => $md5) {

  $hashelines .= "$key:$md5\n";

}

file_put_contents($hashfile, $hashelines);

?>