added uninstall and remove commands

mind

@@ -19,9 +19,11 @@
 	// checks if it has received any argument
 	if(sizeOf($_SERVER['argv'])>0 && isset($_SERVER['argv'][1]))
 	{
+        require('mind3rd/API/utils/constants.php');
 		// installation should create the required SQLite database and a shortcut command
-		if($_SERVER['argv'][1] == 'install')
+		switch($_SERVER['argv'][1])
 		{
+            case 'install':{
                 // first, for linux and mac computers
                 if (strtoupper(substr(PHP_OS, 0, 3)) !== 'WIN')
                 {
@@ -34,6 +36,30 @@
                         WinSetup::install();
                      }
                 exit;
+                break;
+            }
+            case 'uninstall':{
+                // only for linux and mac computers
+                if (strtoupper(substr(PHP_OS, 0, 3)) !== 'WIN'){
+                    require('mind3rd/env/setup/UnixSetup.php');
+                    $_MIND['sys']= 'unix';
+                    UnixSetup::uninstall();
+                    exit;
+                }else{
+                    echo "Available only in Unix Based Systems\n";
+                }
+                break;
+            }
+            case 'remove':{
+                // only for linux and mac computers
+                if (strtoupper(substr(PHP_OS, 0, 3)) !== 'WIN'){
+                    require('mind3rd/env/setup/UnixSetup.php');
+                    $_MIND['sys']= 'unix';
+                    UnixSetup::remove();
+                    exit;
+                }
+                break;
+            }
         }
 	}
 	// if not installing, it should be redirected to mind3rd/API/shell.php

mind3rd/API/utils/constants.php

@@ -31,6 +31,8 @@
 
 	// addresses
 	define('PROJECTS_DIR',        '/mind3rd/projects/');
+	define('KNOWLEDGE_BASE',      'mind3rd/SQLite/mind');
+	define('KNOWLEDGE_DDL',       'mind3rd/SQLite/ddl.sql');
 	define('MODELS_DIR',          '/mind3rd/API/models/');
 	define('ABOUT_INI',           '/mind3rd/env/about.ini');
 	define('DEFAULTS_INI',        '/mind3rd/env/defaults.ini');

mind3rd/env/setup/Setup.php

@@ -68,7 +68,7 @@ abstract class Setup {
     
     public static function databaseAlreadyExists()
     {
-        return file_exists('mind3rd/SQLite/mind');
+        return file_exists(\KNOWLEDGE_BASE);
     }
     
     /**
@@ -135,8 +135,37 @@ abstract class Setup {
         return self::$installationOk= $phpVsOk && $sqliteOk && $projectsDir && $sqliteDir && $apiDir;
     }
     
+    /**
+     * Return true if mind was already installed in this server.
+     * 
+     * @return boolean
+     */
 	public static function isInstalled(){
-		return file_exists('mind3rd/SQLite/mind');
+		return file_exists(\KNOWLEDGE_BASE);
+	}
+	
+    /**
+     * Tries to remove completely the database.
+     * 
+     * This method has NO ROLLBACK and should be called with parsimony.
+     * 
+     * @return boolean
+     */
+    public static function removeDataBase(){
+        return unlink(\KNOWLEDGE_BASE);
+    }
+    
+    /**
+     * Tries to remove all the created projects.
+     * 
+     * This method has NO ROLLBACK and should be called with parsimony.
+     * 
+     * @return boolean
+     */
+    public static function clearProjects(){
+        if($ret = shell_exec("sudo rm -rf ".'.'.\PROJECTS_DIR) == '')
+            return mkdir('.'.\PROJECTS_DIR);
+        return false;
     }
     
     /**
@@ -151,8 +180,8 @@ abstract class Setup {
         GLOBAL $_MIND;
         echo "  creating database...\n";
         $sqlite= class_exists('SQLite3')? 'SQLite3': 'SQLiteDatabase';
-        $sqliteDDLFile= 'mind3rd/SQLite/ddl.sql';
-        $sqliteBaseFile= 'mind3rd/SQLite/mind';
+        $sqliteDDLFile= \KNOWLEDGE_DDL;
+        $sqliteBaseFile= \KNOWLEDGE_BASE;
         
         if(file_exists($sqliteBaseFile))
         {

mind3rd/env/setup/UnixSetup.php

@@ -50,10 +50,60 @@ class UnixSetup extends Setup{
 		echo shell_exec("sudo echo '".self::$content."' >>".
 						"/bin/mind;");
 		echo "  setting permissions...\n";
-		echo shell_exec("sudo chmod 777 /bin/mind");
+		echo shell_exec("sudo chmod +x /bin/mind");
         return true;
 	}
 
+    /**
+     * Remove the executable file in Unix Bases OSs.
+     * 
+     * This method will *NOT* drop database or remove project's files.
+     * The user must use it with sudo privilegies.
+     */
+    public static function uninstall($rem){
+        if(self::isInstalled()){
+            if($ret = shell_exec("sudo rm /bin/mind") == ''){
+                if(!$rem){
+                    echo "Mind was successfully uninstalled.\n";
+                    echo "Please note that the database of project's folders weren't removed!\nIf you want to remove them, execute\n   sudo ./mind remove\n";
+                }
+            }else{
+                echo $ret;
+                return false;
+            }
+        }else{
+            echo "No previous installed version detected!\n";
+        }
+        return true;
+    }
+    
+    public static function remove(){
+        
+        $fp = fopen('php://stdin', 'r');
+        echo "Are you sure you want to uninstall mind and ALSO REMOVE ITS DATA?\n";
+        echo "    *** By duing so, you will loose all projects, users and history ***\n        [yes/no]: ";
+        $answer = trim(fgets($fp, 1024));
+        
+        if($answer != 'yes'){
+            echo "Not removed\n";
+            return false;
+        }
+        
+        if(self::isInstalled()){
+            if(self::uninstall(true)){
+                self::removeDataBase();
+                self::clearProjects();
+            }else{
+                echo "Failed trying to uninstall!";;
+                return false;
+            }
+        }else{
+            echo "No previous installed version detected!\n";
+        }
+        return true;
+        
+    }
+    
 	/**
 	 * Installs the program to be used in command line
 	 * or http.