diff -r 000000000000 -r 7f95f8617b0b vendor/assetic/src/Assetic/Util/Process.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vendor/assetic/src/Assetic/Util/Process.php	Sat Sep 24 15:40:41 2011 +0200
@@ -0,0 +1,380 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * Copyright (c) 2004-2011 Fabien Potencier
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is furnished
+ * to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+namespace Assetic\Util;
+
+/**
+ * Process is a thin wrapper around proc_* functions to ease
+ * start independent PHP processes.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @api
+ */
+class Process
+{
+    private $commandline;
+    private $cwd;
+    private $env;
+    private $stdin;
+    private $timeout;
+    private $options;
+    private $exitcode;
+    private $status;
+    private $stdout;
+    private $stderr;
+
+    /**
+     * Constructor.
+     *
+     * @param string  $commandline The command line to run
+     * @param string  $cwd         The working directory
+     * @param array   $env         The environment variables
+     * @param string  $stdin       The STDIN content
+     * @param integer $timeout     The timeout in seconds
+     * @param array   $options     An array of options for proc_open
+     *
+     * @throws \RuntimeException When proc_open is not installed
+     *
+     * @api
+     */
+    public function __construct($commandline, $cwd = null, array $env = null, $stdin = null, $timeout = 60, array $options = array())
+    {
+        if (!function_exists('proc_open')) {
+            throw new \RuntimeException('The Process class relies on proc_open, which is not available on your PHP installation.');
+        }
+
+        $this->commandline = $commandline;
+        $this->cwd = null === $cwd ? getcwd() : $cwd;
+        if (null !== $env) {
+            $this->env = array();
+            foreach ($env as $key => $value) {
+                $this->env[(binary) $key] = (binary) $value;
+            }
+        } else {
+            $this->env = null;
+        }
+        $this->stdin = $stdin;
+        $this->timeout = $timeout;
+        $this->options = array_merge(array('suppress_errors' => true, 'binary_pipes' => true, 'bypass_shell' => false), $options);
+    }
+
+    /**
+     * Runs the process.
+     *
+     * The callback receives the type of output (out or err) and
+     * some bytes from the output in real-time. It allows to have feedback
+     * from the independent process during execution.
+     *
+     * The STDOUT and STDERR are also available after the process is finished
+     * via the getOutput() and getErrorOutput() methods.
+     *
+     * @param Closure|string|array $callback A PHP callback to run whenever there is some
+     *                                       output available on STDOUT or STDERR
+     *
+     * @return integer The exit status code
+     *
+     * @throws \RuntimeException When process can't be launch or is stopped
+     *
+     * @api
+     */
+    public function run($callback = null)
+    {
+        $this->stdout = '';
+        $this->stderr = '';
+        $that = $this;
+        $callback = function ($type, $data) use ($that, $callback)
+        {
+            if ('out' == $type) {
+                $that->addOutput($data);
+            } else {
+                $that->addErrorOutput($data);
+            }
+
+            if (null !== $callback) {
+                call_user_func($callback, $type, $data);
+            }
+        };
+
+        $descriptors = array(array('pipe', 'r'), array('pipe', 'w'), array('pipe', 'w'));
+
+        $process = proc_open($this->commandline, $descriptors, $pipes, $this->cwd, $this->env, $this->options);
+
+        if (!is_resource($process)) {
+            throw new \RuntimeException('Unable to launch a new process.');
+        }
+
+        foreach ($pipes as $pipe) {
+            stream_set_blocking($pipe, false);
+        }
+
+        if (null === $this->stdin) {
+            fclose($pipes[0]);
+            $writePipes = null;
+        } else {
+            $writePipes = array($pipes[0]);
+            $stdinLen = strlen($this->stdin);
+            $stdinOffset = 0;
+        }
+        unset($pipes[0]);
+
+        while ($pipes || $writePipes) {
+            $r = $pipes;
+            $w = $writePipes;
+            $e = null;
+
+            $n = @stream_select($r, $w, $e, $this->timeout);
+
+            if (false === $n) {
+                break;
+            } elseif ($n === 0) {
+                proc_terminate($process);
+
+                throw new \RuntimeException('The process timed out.');
+            }
+
+            if ($w) {
+                $written = fwrite($writePipes[0], (binary) substr($this->stdin, $stdinOffset), 8192);
+                if (false !== $written) {
+                    $stdinOffset += $written;
+                }
+                if ($stdinOffset >= $stdinLen) {
+                    fclose($writePipes[0]);
+                    $writePipes = null;
+                }
+            }
+
+            foreach ($r as $pipe) {
+                $type = array_search($pipe, $pipes);
+                $data = fread($pipe, 8192);
+                if (strlen($data) > 0) {
+                    call_user_func($callback, $type == 1 ? 'out' : 'err', $data);
+                }
+                if (false === $data || feof($pipe)) {
+                    fclose($pipe);
+                    unset($pipes[$type]);
+                }
+            }
+        }
+
+        $this->status = proc_get_status($process);
+
+        $time = 0;
+        while (1 == $this->status['running'] && $time < 1000000) {
+            $time += 1000;
+            usleep(1000);
+            $this->status = proc_get_status($process);
+        }
+
+        proc_close($process);
+
+        if ($this->status['signaled']) {
+            throw new \RuntimeException(sprintf('The process stopped because of a "%s" signal.', $this->status['stopsig']));
+        }
+
+        return $this->exitcode = $this->status['exitcode'];
+    }
+
+    /**
+     * Returns the output of the process (STDOUT).
+     *
+     * This only returns the output if you have not supplied a callback
+     * to the run() method.
+     *
+     * @return string The process output
+     *
+     * @api
+     */
+    public function getOutput()
+    {
+        return $this->stdout;
+    }
+
+    /**
+     * Returns the error output of the process (STDERR).
+     *
+     * This only returns the error output if you have not supplied a callback
+     * to the run() method.
+     *
+     * @return string The process error output
+     *
+     * @api
+     */
+    public function getErrorOutput()
+    {
+        return $this->stderr;
+    }
+
+    /**
+     * Returns the exit code returned by the process.
+     *
+     * @return integer The exit status code
+     *
+     * @api
+     */
+    public function getExitCode()
+    {
+        return $this->exitcode;
+    }
+
+    /**
+     * Checks if the process ended successfully.
+     *
+     * @return Boolean true if the process ended successfully, false otherwise
+     *
+     * @api
+     */
+    public function isSuccessful()
+    {
+        return 0 == $this->exitcode;
+    }
+
+    /**
+     * Returns true if the child process has been terminated by an uncaught signal.
+     *
+     * It always returns false on Windows.
+     *
+     * @return Boolean
+     *
+     * @api
+     */
+    public function hasBeenSignaled()
+    {
+        return $this->status['signaled'];
+    }
+
+    /**
+     * Returns the number of the signal that caused the child process to terminate its execution.
+     *
+     * It is only meaningful if hasBeenSignaled() returns true.
+     *
+     * @return integer
+     *
+     * @api
+     */
+    public function getTermSignal()
+    {
+        return $this->status['termsig'];
+    }
+
+    /**
+     * Returns true if the child process has been stopped by a signal.
+     *
+     * It always returns false on Windows.
+     *
+     * @return Boolean
+     *
+     * @api
+     */
+    public function hasBeenStopped()
+    {
+        return $this->status['stopped'];
+    }
+
+    /**
+     * Returns the number of the signal that caused the child process to stop its execution
+     *
+     * It is only meaningful if hasBeenStopped() returns true.
+     *
+     * @return integer
+     *
+     * @api
+     */
+    public function getStopSignal()
+    {
+        return $this->status['stopsig'];
+    }
+
+    public function addOutput($line)
+    {
+        $this->stdout .= $line;
+    }
+
+    public function addErrorOutput($line)
+    {
+        $this->stderr .= $line;
+    }
+
+    public function getCommandLine()
+    {
+        return $this->commandline;
+    }
+
+    public function setCommandLine($commandline)
+    {
+        $this->commandline = $commandline;
+    }
+
+    public function getTimeout()
+    {
+        return $this->timeout;
+    }
+
+    public function setTimeout($timeout)
+    {
+        $this->timeout = $timeout;
+    }
+
+    public function getWorkingDirectory()
+    {
+        return $this->cwd;
+    }
+
+    public function setWorkingDirectory($cwd)
+    {
+        $this->cwd = $cwd;
+    }
+
+    public function getEnv()
+    {
+        return $this->env;
+    }
+
+    public function setEnv(array $env)
+    {
+        $this->env = $env;
+    }
+
+    public function getStdin()
+    {
+        return $this->stdin;
+    }
+
+    public function setStdin($stdin)
+    {
+        $this->stdin = $stdin;
+    }
+
+    public function getOptions()
+    {
+        return $this->options;
+    }
+
+    public function setOptions(array $options)
+    {
+        $this->options = $options;
+    }
+}