initial sensiolabs/melody integration

lib/MelodyPlugin.php

@@ -0,0 +1,59 @@
+<?php
+
+use SensioLabs\Melody\Melody;
+use SensioLabs\Melody\Configuration\RunConfiguration;
+use Symfony\Component\Process\Process;
+use SensioLabs\Melody\Resource\ResourceParser;
+
+/**
+ * Class which integrates melody scripts into the php-console.
+ *
+ * @author mstaab
+ * @see https://github.com/sensiolabs/melody
+ */
+class MelodyPlugin {
+    public function isMelodyScript($source) {
+        return preg_match(ResourceParser::MELODY_PATTERN, $source);
+    }
+
+    public function isScriptingSupported() {
+        // the melody lib is bundled with the console, so the only additional requirement is a composer CLI
+        exec('which composer', $out, $ret);
+        return $ret === 0;
+    }
+
+    public function runScript($__source_code, $__bootstrap_file)
+    {
+        $tmpDir = sys_get_temp_dir() . DIRECTORY_SEPARATOR . 'melody-composer';
+
+        // make sure the melody subprocess has a composer home,
+        // which is not the case when running from webcontext
+        $_ENV['COMPOSER_HOME'] = $tmpDir;
+
+        $melody = new Melody();
+        $configuration = new RunConfiguration(/*true, true*/);
+        $executor = function (Process $process, $verbose)
+        {
+            $callback = function ($type, $text)
+            {
+                // we only have one output channel to the browser, just echo "all the things"
+                echo $text;
+            };
+            $process->run($callback);
+        };
+
+        //TODO missing $__bootstrap_file support
+        /*
+        if ($__bootstrap_file) {
+            require $__bootstrap_file;
+        }
+        */
+
+        $tmpFile = tempnam($tmpDir, '_script');
+        register_shutdown_function(function() use ($tmpFile) {
+            @unlink($tmpFile);
+        });
+        file_put_contents($tmpFile, $__source_code);
+        $melody->run($tmpFile, array(), $configuration, $executor);
+    }
+}