--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/bin/installto.sh	Thu Jan 04 15:50:29 2018 -0500
@@ -0,0 +1,125 @@
+#!/usr/bin/env php
+<?php
+/*
+ +-----------------------------------------------------------------------+
+ | bin/installto.sh                                                      |
+ |                                                                       |
+ | This file is part of the Roundcube Webmail client                     |
+ | Copyright (C) 2014-2016, The Roundcube Dev Team                       |
+ |                                                                       |
+ | Licensed under the GNU General Public License version 3 or            |
+ | any later version with exceptions for skins & plugins.                |
+ | See the README file for a full license statement.                     |
+ |                                                                       |
+ | PURPOSE:                                                              |
+ |   Update an existing Roundcube installation with files from           |
+ |   this version                                                        |
+ +-----------------------------------------------------------------------+
+ | Author: Thomas Bruederli <roundcube@gmail.com>                        |
+ +-----------------------------------------------------------------------+
+*/
+
+define('INSTALL_PATH', realpath(__DIR__ . '/..') . '/' );
+
+require_once INSTALL_PATH . 'program/include/clisetup.php';
+
+if (!function_exists('system')) {
+  rcube::raise_error("PHP system() function is required. Check disable_functions in php.ini.", false, true);
+}
+
+$target_dir = unslashify($_SERVER['argv'][1]);
+
+if (empty($target_dir) || !is_dir(realpath($target_dir)))
+  rcube::raise_error("Invalid target: not a directory\nUsage: installto.sh <TARGET>", false, true);
+
+// read version from iniset.php
+$iniset = @file_get_contents($target_dir . '/program/include/iniset.php');
+if (!preg_match('/define\(.RCMAIL_VERSION.,\s*.([0-9.]+[a-z-]*)/', $iniset, $m))
+  rcube::raise_error("No valid Roundcube installation found at $target_dir", false, true);
+
+$oldversion = $m[1];
+
+if (version_compare(version_parse($oldversion), version_parse(RCMAIL_VERSION), '>='))
+  rcube::raise_error("Installation at target location is up-to-date!", false, true);
+
+echo "Upgrading from $oldversion. Do you want to continue? (y/N)\n";
+$input = trim(fgets(STDIN));
+
+if (strtolower($input) == 'y') {
+  echo "Copying files to target location...";
+
+  // Save a copy of original .htaccess file (#1490623)
+  if (file_exists("$target_dir/.htaccess")) {
+    $htaccess_copied = copy("$target_dir/.htaccess", "$target_dir/.htaccess.orig");
+  }
+
+  $dirs = array('program','installer','bin','SQL','plugins','skins');
+  if (is_dir(INSTALL_PATH . 'vendor') && !is_file("$target_dir/composer.json")) {
+    $dirs[] = 'vendor';
+  }
+  foreach ($dirs as $dir) {
+    // @FIXME: should we use --delete for all directories?
+    $delete  = in_array($dir, array('program', 'installer', 'vendor')) ? '--delete ' : '';
+    $command = "rsync -aC --out-format=%n " . $delete . INSTALL_PATH . "$dir/ $target_dir/$dir/";
+    if (system($command, $ret) === false || $ret > 0) {
+      rcube::raise_error("Failed to execute command: $command", false, true);
+    }
+  }
+  foreach (array('index.php','.htaccess','config/defaults.inc.php','composer.json-dist','jsdeps.json','CHANGELOG','README.md','UPGRADING','LICENSE','INSTALL') as $file) {
+    $command = "rsync -a --out-format=%n " . INSTALL_PATH . "$file $target_dir/$file";
+    if (file_exists(INSTALL_PATH . $file) && (system($command, $ret) === false || $ret > 0)) {
+      rcube::raise_error("Failed to execute command: $command", false, true);
+    }
+  }
+
+  // remove old (<1.0) .htaccess file
+  @unlink("$target_dir/program/.htaccess");
+  echo "done.";
+
+  // Inform the user about .htaccess change
+  if (!empty($htaccess_copied)) {
+    if (file_get_contents("$target_dir/.htaccess") != file_get_contents("$target_dir/.htaccess.orig")) {
+      echo "\n!! Old .htaccess file saved as .htaccess.orig !!";
+    }
+    else {
+      @unlink("$target_dir/.htaccess.orig");
+    }
+  }
+
+  echo "\n\n";
+
+  if (is_dir("$target_dir/skins/default")) {
+      echo "Removing old default skin...";
+      system("rm -rf $target_dir/skins/default $target_dir/plugins/jqueryui/themes/default");
+      foreach (glob(INSTALL_PATH . "plugins/*/skins") as $plugin_skin_dir) {
+          $plugin_skin_dir = preg_replace('!^.*' . INSTALL_PATH . '!', '', $plugin_skin_dir);
+          if (is_dir("$target_dir/$plugin_skin_dir/classic"))
+            system("rm -rf $target_dir/$plugin_skin_dir/default");
+      }
+      echo "done.\n\n";
+  }
+
+  // check if js-deps are up-to-date
+  if (file_exists("$target_dir/jsdeps.json") && file_exists("$target_dir/bin/install-jsdeps.sh")) {
+    $jsdeps = json_decode(file_get_contents("$target_dir/jsdeps.json"));
+    $package = $jsdeps->dependencies[0];
+    $dest_file = $target_dir . '/' . $package->dest;
+    if (!file_exists($dest_file) || sha1_file($dest_file) !== $package->sha1) {
+        echo "Installing JavaScript dependencies...";
+        system("cd $target_dir && bin/install-jsdeps.sh");
+        echo "done.\n\n";
+    }
+  }
+  else {
+    echo "JavaScript dependencies installation skipped...\n";
+  }
+
+  echo "Running update script at target...\n";
+  system("cd $target_dir && php bin/update.sh --version=$oldversion");
+  echo "All done.\n";
+}
+else {
+  echo "Update cancelled. See ya!\n";
+}
+
+?>