Added a "database-export" method with a Database plugin class.

app/plugins/Database.php

@@ -0,0 +1,97 @@
+<?php
+/**
+ * Wiz
+ *
+ * NOTICE OF LICENSE
+ *
+ * This source file is subject to the Open Software License (OSL 3.0)
+ * http://opensource.org/licenses/osl-3.0.php
+ *
+ * DISCLAIMER
+ * 
+ * This program is provided to you AS-IS.  There is no warranty.  It has not been
+ * certified for any particular purpose.
+ *
+ * @package    Wiz
+ * @author     Ricardo Martins <ricardo@ricardomartins.info>
+ * @copyright  Copyright (c) by 2012 Ricardo Martins
+ * @license    http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
+ */
+
+/**
+ * Database Plugin for Wiz
+ *
+ * @author Ricardo Martins <ricardo@ricardomartins.info>
+ */
+Class Wiz_Plugin_Database extends Wiz_Plugin_Abstract {
+
+    private $host;
+    private $username;
+    private $password;
+    private $dbname;
+    private $skipLogTables;
+    private $objConfig;
+
+    function _init(){
+        Wiz::getMagento();
+        $this->objConfig = Mage::getConfig()->getResourceConnectionConfig("default_setup");
+    }
+
+    function _askOrDefault($msg, $varname, $default=null){
+        $defaultValue = (!is_null($default))?$default:(string)$this->objConfig->$varname;
+        printf('%s (%s): ', $msg, $defaultValue);
+        $input = trim(fgets(STDIN));
+        $this->$varname = (empty($input))?$defaultValue:$input;        
+    }
+
+    function _humanFilesize($filename, $decimals = 2) {
+        $bytes = filesize($filename);
+        $sz = 'BKMGTP';
+        $factor = floor((strlen($bytes) - 1) / 3);
+        return sprintf("%.{$decimals}f", $bytes / pow(1024, $factor)) . @$sz[$factor];
+    }
+
+    /**
+     * Dumps the store database into a file.
+     *
+     * @author Ricardo Martins <ricardo@ricardomartins.info>
+     */
+    function exportAction(){
+        $this->_init();
+        // var_dump($config->host,$config->username, $config->password, $config->dbname);
+
+        $this->_askOrDefault('DB Host','host');
+        $this->_askOrDefault('DB User','username');
+        $this->_askOrDefault('DB password','password');
+        $this->_askOrDefault('DB name','dbname');
+        $this->_askOrDefault('Skip log data?','skipLogTables','N');
+        $this->_askOrDefault('Filename', 'filename', 'dump.sql');
+
+        // mysqldump -h HOST -u USER -p --ignore-table=DBNAME.log_customer --ignore-table=DBNAME.log_visitor --ignore-table=DBNAME.log_visitor_info --ignore-table=DBNAME.log_url --ignore-table=DBNAME.log_url_info  --ignore-table=DBNAME.log_quote  --ignore-table=DBNAME.report_viewed_product_index  --ignore-table=DBNAME.report_compared_product_index  --ignore-table=DBNAME.report_event  --ignore-table=DBNAME.catalog_compare_item --opt DBNAME > FILE.sql
+        $config = $this;
+        $skipTablesCommand = '';
+        if(strtolower($this->skipLogTables)!=='n'){
+            $skipTablesCommand = "--ignore-table={$config->dbname}.log_customer --ignore-table={$config->dbname}.log_visitor --ignore-table={$config->dbname}.log_visitor_info --ignore-table={$config->dbname}.log_url --ignore-table={$config->dbname}.log_url_info  --ignore-table={$config->dbname}.log_quote  --ignore-table={$config->dbname}.report_viewed_product_index  --ignore-table={$config->dbname}.report_compared_product_index  --ignore-table={$config->dbname}.report_event  --ignore-table={$config->dbname}.catalog_compare_item";
+        }
+
+        $command = "mysqldump -h {$config->host} -u {$config->username} -p{$config->password} {$skipCommand} --opt {$config->dbname} > {$config->filename}";
+        printf('Dump started...' . PHP_EOL);
+        proc_close(proc_open($command, array(0 => STDIN, 1 => STDOUT, 2 => STDERR), $pipes));
+
+        if(!empty($skipTablesCommand)){
+            printf('Appending log tables structure to file...'. PHP_EOL);
+            $command = "mysqldump -h {$config->host} -u {$config->username} -p{$config->password} {$config->dbname} log_customer log_visitor log_visitor_info log_url log_url_info  log_quote  report_viewed_product_index  report_compared_product_index  report_event  catalog_compare_item --no-data   >> {$config->filename}";
+            proc_close(proc_open($command, array(0 => STDIN, 1 => STDOUT, 2 => STDERR), $pipes));
+        }
+
+        printf("----\nDump finished. \nFile: %s. \nSize: %s.\n", $config->filename, $this->_humanFilesize($config->filename));
+
+        //Ask for compacting the file
+        $this->_askOrDefault('Compact sql to .tar.gz file?', 'compact', 'N' );
+        // tar czvf FILE.tar.gz FILE.sql
+        if(strtolower($this->compact)!=='n'){
+            proc_close(proc_open("tar czvf {$config->filename}.tar.gz {$config->filename}", array(0 => STDIN, 1 => STDOUT, 2 => STDERR), $pipes));
+            printf("File compacted to %s. Size: %s.\n", $config->filename . '.tar.gz', $this->_humanFilesize($config->filename . '.tar.gz'));
+        }
+    }
+}