install/upgrade.php
author Dan
Wed, 26 Mar 2008 16:51:42 -0400
changeset 510 290fa071842a
parent 497 ecb636490702
child 526 b2fb50d572c7
permissions -rw-r--r--
Fixed some bugs in the installer that prevented it from working without mod_rewrite and/or with a table_prefix present
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<?php
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/*
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 * Enano - an open-source CMS capable of wiki functions, Drupal-like sidebar blocks, and everything in between
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 * Version 1.1.1
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 * Copyright (C) 2006-2007 Dan Fuhry
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 * Installation package
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 * upgrade.php - Upgrade interface
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 *
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 * This program is Free Software; you can redistribute and/or modify it under the terms of the GNU General Public License
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 * as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
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 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
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 */
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define('IN_ENANO', 1);
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// The list of versions in THIS AND PREVIOUS branches, in chronological order.
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$enano_versions = array();
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$enano_versions['1.0'] = array('1.0', '1.0.1', '1.0.2b1', '1.0.2', '1.0.3', '1.0.4');
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$enano_versions['1.1'] = array('1.1.1', '1.1.2', '1.1.3');
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// Turn on every imaginable API hack to make common load on older databases
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define('IN_ENANO_UPGRADE', 1);
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define('IN_ENANO_MIGRATION', 1);
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define('ENANO_ALLOW_LOAD_NOLANG', 1);
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@ini_set('display_errors', 'on');
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// Load installer files
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require_once('includes/sql_parse.php');
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require_once('includes/common.php');
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require_once('includes/libenanoinstall.php');
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// when the installer's common is loaded, it runs chdir() to the ENANO_ROOT, thus making this Enano's common.php
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require_once('includes/common.php');
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@ini_set('display_errors', 'on');
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$ui = new Enano_Installer_UI('Enano upgrader', false);
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if ( version_compare(PHP_VERSION, '5.0.0', '<') )
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{
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  $ui->__construct('Enano upgrader', false);
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}
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$stg_welcome = $ui->add_stage('Welcome', true);
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$stg_confirm = $ui->add_stage('Confirmation', true);
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$stg_upgrade = $ui->add_stage('Perform upgrade', true);
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$stg_finish  = $ui->add_stage('Finish', true);
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$stg_php4 = $ui->add_stage('PHP4 compatibility notice', false);
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if ( version_compare(PHP_VERSION, '5.0.0', '<') || isset($_GET['debug_warn_php4']) )
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{
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  $ui->set_visible_stage($stg_php4);
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  $ui->step = '';
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  $ui->show_header();
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  // This isn't localized because all localization code is dependent on
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  // PHP 5 (loading lang.php will throw a parser error under PHP4). This
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  // one message probably doesn't need to be localized anyway.
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  ?>
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  <h2 class="heading-error">
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    Your server doesn't have support for PHP 5.
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  </h2>
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  <p>
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    PHP 5 is the latest version of the language on which Enano was built. Its many new features have been available since early 2004, yet
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    many web hosts have not migrated to it because of the work involved. In 2007, Zend Corporation announced that support for the aging
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    PHP 4.x would be discontinued at the end of the year. An initiative called <a href="http://gophp5.org/">GoPHP5</a> was started to
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    encourage web hosts to migrate to PHP 5.
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  </p>
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  <p>
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    Because of the industry's decision to not support PHP 4 any longer, the Enano team decided that it was time to begin using the powerful
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    features of PHP 5 at the expense of PHP 4 compatibility. Therefore, this version of Enano cannot be installed on your server until it
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    is upgraded to at least PHP 5.0.0, and preferably the latest available version.
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    <!-- No, not even removing the check in this installer script will help. As soon as the PHP4 check is passed, the installer shows the
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         language selection page, after which the language code is loaded. The language code and libjson2 will trigger parse errors under
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         PHP <5.0.0. -->
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  </p>
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  <p>
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    If you need to use Enano but can't upgrade your PHP because you're on a shared or reseller hosting service, you can use the
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    <a href="http://enanocms.org/download?series=1.0">1.0.x series of Enano</a> on your site. While the Enano team attempts to make this
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    older series work on PHP 4, official support is not provided for installations of Enano on PHP 4.
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  </p>
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  <?php
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  $ui->show_footer();
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  exit(0);
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}
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// Version check
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if ( enano_version() == installer_enano_version() )
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{
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  $ui->show_header();
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  echo '<h3>Already upgraded</h3>' . '<p>You don\'t need to migrate, you\'re already on <del>crack</del> the 1.1 platform.</p>';
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  $ui->show_footer();
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  exit();
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}
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// Start session manager
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$session->start();
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   101
if ( !$session->user_logged_in || ( $session->user_logged_in && $session->auth_level < USER_LEVEL_ADMIN ) )
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   102
{
bb3e6c3bd4f4 Removed stray debugging info from ACL editor success notification; added ability for guests to set language on URI (?lang=eng); added html_in_pages ACL type and separated from php_in_pages so HTML can be embedded but not PHP; rewote portions of the path manager to better abstract URL input; added Zend Framework into list of BSD-licensed libraries; localized some remaining strings; got the migration script working, but just barely; fixed display bug in Special:Contributions; localized Main Page button in admin panel
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   103
  if ( isset($_POST['do_login']) )
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   104
  {
bb3e6c3bd4f4 Removed stray debugging info from ACL editor success notification; added ability for guests to set language on URI (?lang=eng); added html_in_pages ACL type and separated from php_in_pages so HTML can be embedded but not PHP; rewote portions of the path manager to better abstract URL input; added Zend Framework into list of BSD-licensed libraries; localized some remaining strings; got the migration script working, but just barely; fixed display bug in Special:Contributions; localized Main Page button in admin panel
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   105
    if ( !$session->user_logged_in )
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   106
    {
bb3e6c3bd4f4 Removed stray debugging info from ACL editor success notification; added ability for guests to set language on URI (?lang=eng); added html_in_pages ACL type and separated from php_in_pages so HTML can be embedded but not PHP; rewote portions of the path manager to better abstract URL input; added Zend Framework into list of BSD-licensed libraries; localized some remaining strings; got the migration script working, but just barely; fixed display bug in Special:Contributions; localized Main Page button in admin panel
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      $result = $session->login_without_crypto($_POST['username'], $_POST['password'], false, USER_LEVEL_MEMBER);
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   108
    }
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   109
    $result = $session->login_without_crypto($_POST['username'], $_POST['password'], false, USER_LEVEL_ADMIN);
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   110
    if ( $result['success'] )
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   111
    {
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   112
      header('HTTP/1.1 302 Some kind of redirect with implied no content');
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   113
      header('Location: ' . scriptPath . '/install/' . $session->append_sid('upgrade.php'));
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   114
      exit();
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   115
    }
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   116
  }
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   117
  
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   118
  $ui->show_header();
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   119
  
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   120
  ?>
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  <h3>Authentication needed</h3>
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   122
  <?php
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   123
  
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   124
  echo '<form action="upgrade.php" method="post">';
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   125
  
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   126
  if ( isset($result) )
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   127
  {
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    echo '<b>Session manager returned error:</b>' . '<pre>' . print_r($result, true) . '</pre>';
377
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   129
  }
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   130
  
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  ?>
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  <p>You need <?php if ( !$session->user_logged_in ) echo 'to be logged in and have '; ?>an active admin session to continue.</p>
377
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   133
  <p>
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    Username:&nbsp;&nbsp;&nbsp;<input type="text" name="username" /><br />
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    Password:&nbsp;&nbsp;&nbsp;<input type="password" name="password" /><br />
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   136
    <input type="submit" name="do_login" value="Log in" />
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   137
  </p>
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   138
  <?php
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   139
  
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   140
  echo '</form>';
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   141
  
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   142
  $ui->show_footer();
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   143
  exit();
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   144
}
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   145
411
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if ( isset($_GET['stage']) && @$_GET['stage'] == 'pimpmyenano' )
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{
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  $ui->set_visible_stage($stg_upgrade);
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}
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else
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{
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  $ui->set_visible_stage($stg_confirm);
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}
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377
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// The real migration code
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   156
$ui->show_header();
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   157
bb3e6c3bd4f4 Removed stray debugging info from ACL editor success notification; added ability for guests to set language on URI (?lang=eng); added html_in_pages ACL type and separated from php_in_pages so HTML can be embedded but not PHP; rewote portions of the path manager to better abstract URL input; added Zend Framework into list of BSD-licensed libraries; localized some remaining strings; got the migration script working, but just barely; fixed display bug in Special:Contributions; localized Main Page button in admin panel
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if ( isset($_GET['stage']) && @$_GET['stage'] == 'pimpmyenano' )
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{
494
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  /*
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   HOW DOES ENANO'S UPGRADER WORK?
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   Versions of Enano are organized into branches and then specific versions by
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   version number. The upgrader works by using a list of known version numbers
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   and then systematically executing upgrade schemas for each version.
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   When the user requests an upgrade, the first thing performed is a migration
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   check, which verifies that they are within the right branch. If they are not
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   within the right branch the upgrade framework will load a migration script
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   which will define a function named MIGRATE(). Performing more than one
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   migration in one pass will probably never be supported. How that works for
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   UX in 1.3.x/1.4.x I know not yet.
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   After performing any necessary branch migrations, the framework will perform
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   any upgrades within the target branch, which is the first two parts
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   (delimited by periods) of the installer's version number defined in the
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   installer's common.php.
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   enano_perform_upgrade() will only do upgrades. Not migrations. The two as
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   illustrated within this installer are very different.
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   */
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  // Do we need to run the migration first?
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  list($major_version, $minor_version) = explode('.', enano_version());
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  $current_branch = "$major_version.$minor_version";
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  list($major_version, $minor_version) = explode('.', installer_enano_version());
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  $target_branch = "$major_version.$minor_version";
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  if ( $target_branch != $current_branch )
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  {
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    // First upgrade to the latest revision of the current branch
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    enano_perform_upgrade($current_branch);
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    // Branch migration could be tricky and is often highly specific between
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    // major branches, so just include a custom migration script.
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    require(ENANO_ROOT . "/install/schemas/upgrade/migration/{$current_branch}-{$target_branch}.php");
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    $result = MIGRATE();
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    if ( !$result )
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    {
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      echo 'Migration failed, there should be an error message above.';
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      $ui->show_footer();
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      exit;
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    }
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  }
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  // Do the actual upgrade
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  enano_perform_upgrade($target_branch);
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  $site_url = makeUrl(getConfig('main_page'), false, true);
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  echo '<p>All done! I\'ll actually be nice enough to give you a <a href="' . $site_url . '">link back to your site</a> this release <tt>:)</tt></p>';
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  echo '<p><b>It is important that you run a language string re-import and then clear your browser cache.</b> Otherwise you may see bits of the interface that appear to not be localized. This process will be automatic and non-destructive in later versions.</p>';
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}
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else
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{
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  ?>
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  <p>Nothing's really implemented for now except the actual migration code, which is not very smart. Just <a href="<?php echo $session->append_sid('upgrade.php?stage=pimpmyenano'); ?>">do the upgrade and get it over with</a>.</p>
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  <?php
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}
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$ui->show_footer();
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