diff --git a/lib/cli_compiler.php b/lib/cli_compiler.php
new file mode 100755
index 000000000..584756c67
--- /dev/null
+++ b/lib/cli_compiler.php
@@ -0,0 +1,254 @@
+#!/usr/bin/php
+
+Welcome to the interactive Doctrine Compiler 0.0.1 (Beta).
+
+WARNING: You're on your own - this script modifies your
+filesystem and has not been tested on Windows (yet).
+<?php
+if (in_array($argv[1], array('--help', '-help', '-h', '-?'))) {
+?>
+
+Usage:
+  <?php echo $argv[0]; ?> [path]
+
+  [path] is the path to Doctrine's lib directory. This
+  is normally the directory containing the core
+  Doctrine class, 'Doctrine.php'.
+
+While the program is running:
+
+  Default responses to questions are capitalized. Just
+  hit enter to provide a question's default response.
+
+  You can quit the program at any time by pressing 'q'.
+
+<?php
+    exit;
+}
+
+if ($argc > 1) {
+    $doctrinePath = $argv[1];
+}
+
+$drivers = array(
+    'Db2',
+    'Firebird',
+    'Informix',
+    'Mssql',
+    'Mysql',
+    'Oracle',
+    'Pgsql',
+    'Sqlite'
+);
+
+function addIncludePath($path) {
+    set_include_path(
+        $path . PATH_SEPARATOR . get_include_path()
+    );
+}
+
+function showMessage($message) {
+    echo "\n$message\n";
+}
+
+function quit($message = 'Program Aborted.') {
+    if ($message) {
+        showMessage($message);
+    }
+    exit;
+}
+
+function autoQuit($answer) {
+    if (trim(strtolower($answer)) == 'q') {
+        quit();
+    }
+}
+
+function ask(
+    $question,
+    $defaultOption = 'y',
+    $displayOptions = array('yes', 'no', 'quit'),
+    $autoValidate = true)
+{
+    $prompt = "\n$question";
+    if ($displayOptions) {
+        $optionCount = count($displayOptions);
+        if ($defaultOption) {
+            for ($i = 0; $i < $optionCount; $i++) {
+                if ($displayOptions[$i][0] == $defaultOption) {
+                    $displayOptions[$i] = ucfirst($displayOptions[$i]);
+                    break;
+                }
+            }
+        }
+        if ($autoValidate) {
+            for ($i = 0; $i < $optionCount; $i++) {
+                $validation[] = strtolower($displayOptions[$i][0]);
+            }
+        }
+        $prompt .= "\n[" . implode('/', $displayOptions) . "] ";
+    }
+    $done = false;
+    while (!$done) {
+        echo $prompt;
+        $input = trim(fgets(STDIN));
+        if (!$input && $defaultOption) {
+            $input = $defaultOption;
+        }
+        if (isset($validation)) {
+            if ($input) {
+                $input = strtolower($input[0]);
+            }
+            if (array_search($input, $validation) !== false) {
+                return $input;
+            } else {
+                echo "\n" . 'The answer "' . $input . '" is invalid.  It must be one of "' . implode('", "', $validation) . '".' . "\n";
+            }
+        } else {
+            return $input;
+        }
+    }
+}
+
+// Enable error reporting
+if (($answer = ask("Would you like to turn on error reporting?", 'n')) == 'y') {
+    error_reporting(E_ALL);
+} else {
+    error_reporting(0);
+}
+autoQuit($answer);
+
+// Get Doctrine's library path
+$usablePath = false;
+while (!$usablePath) {
+    if (!isset($doctrinePath)) {
+        $doctrinePath = dirname(__FILE__);
+    }
+    $path = ask("Please enter the path to Doctrine's lib directory:", $doctrinePath, array($doctrinePath), false);
+    autoQuit($path);
+    try {
+        addIncludePath($path);
+        include_once 'Doctrine.php';
+        spl_autoload_register(array('Doctrine', 'autoload'));
+        $usablePath = true;
+    } catch (Exception $e) {
+        showMessage("The path '$path' does not seem to contain the expected Doctrine class ('Doctrine.php').");
+        if (($answer = ask("Would you like to specify another path?")) != 'y') {
+            quit();
+        }
+    }
+}
+
+$includeDrivers = array();
+$excludeDrivers = array();
+
+// Determine driver support
+foreach ($drivers as $driver) {
+    if (($answer = ask("Would you like to enable support for $driver?")) == 'y') {
+        $includeDrivers[] = $driver;
+    } else {
+        $excludeDrivers[] = $driver;
+    }
+    autoQuit($answer);
+}
+
+// Verify driver support
+if (!count($includeDrivers)) {
+    showMessage("You have not selected any drivers. Normally this is not a good idea, unless you know what you're doing.");
+    if (($answer = ask("Are you sure you want to compile without any drivers?")) != 'y') {
+        quit();
+    }
+    autoQuit($answer);
+}
+
+// 'Compile' Doctrine...
+showMessage("Trying to set the PHP memory limit to 18MB...");
+ini_set('memory_limit', '18M');
+if (ini_get('memory_limit') != '18M') {
+    showMessage("WARNING: The program could not set the PHP memory limit to 18MB. The compilation might fail.");
+    if (($answer = ask("Do you still want to continue?")) != 'y') {
+        quit;
+    }
+} else {
+    showMessage("PHP memory limit adjusted successfully.");
+}
+
+
+$target = './Doctrine.compiled.php';
+
+$it = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($path), RecursiveIteratorIterator::LEAVES_ONLY);
+
+foreach ($it as $file) {
+    $e = explode('.', $file->getFileName());
+
+    // we don't want to require versioning files
+    if (end($e) === 'php' && strpos($file->getFileName(), '.inc') === false) {
+        require_once $file->getPathName();
+    }
+}
+
+$classes = array_merge(get_declared_classes(), get_declared_interfaces());
+
+$ret     = array();
+
+foreach ($classes as $class) {
+    $e = explode('_', $class);
+
+    if ($e[0] !== 'Doctrine') {
+        continue;
+    }
+
+    // Skip excluded drivers
+    $skipClass = false;
+    foreach ($excludeDrivers as $excludeDriver) {
+        if (in_array($excludeDriver, $e)) {
+            $skipClass = true;
+            break;
+        }
+    }
+    if ($skipClass) {
+        echo "\nExcluding -> $class";
+        continue;
+    }
+
+    $refl  = new ReflectionClass($class);
+    $file  = $refl->getFileName();
+
+    echo "\nIncluding -> $file";
+
+    $lines = file($file);
+
+    $start = $refl->getStartLine() - 1;
+    $end   = $refl->getEndLine();
+
+    $ret = array_merge($ret, array_slice($lines, $start, ($end - $start)));
+}
+
+if ($target == null) {
+    $target = $path . DIRECTORY_SEPARATOR . 'Doctrine.compiled.php';
+}
+
+// first write the 'compiled' data to a text file, so
+// that we can use php_strip_whitespace (which only works on files)
+$fp = @fopen($target, 'w');
+
+if ($fp === false) {
+    throw new Exception("Couldn't write compiled data. Failed to open $target");
+}
+fwrite($fp, "<?php ". implode('', $ret));
+fclose($fp);
+
+$stripped = php_strip_whitespace($target);
+$fp = @fopen($target, 'w');
+if ($fp === false) {
+    throw new Exception("Couldn't write compiled data. Failed to open $file");
+}
+fwrite($fp, $stripped);
+fclose($fp);
+
+// Say bye...
+showMessage("\nCompilation Finished.");
+showMessage("Thank you for using the interactive Doctrine Compiler. Have fun following the Doctrine :)\n");
+
+
+?>
\ No newline at end of file