RC8 exit if --simulate is used as it is not supported yet

README.md

@@ -43,7 +43,7 @@ sh -ic "$(curl -sS https://raw.githubusercontent.com/extdn/installer-m2/master/b
 ```
 
 ### Option 2 - Phar
-Download and save the [ExtDN_Installer](https://github.com/extdn/installer-m2/raw/v1.0.0-rc7/build/extdn_installer.phar). Ensure it is executable with `chmod +x extdn_installer.phar`.
+Download and save the [ExtDN_Installer](https://github.com/extdn/installer-m2/raw/v1.0.0-rc8/build/extdn_installer.phar). Ensure it is executable with `chmod +x extdn_installer.phar`.
 
 #### Phar Installation from packagist or Marketplace 
 (essentially all previously pre-configured composer repositories)

VERSION

@@ -1 +1 @@
-1.0.0-rc7
+1.0.0-rc8

bin/oneliner.sh

@@ -1,5 +1,5 @@
 #!/usr/bin/env bash
-curl -sSL https://github.com/extdn/installer-m2/raw/v1.0.0-rc7/build/extdn_installer.phar -o extdn_installer.phar
+curl -sSL https://github.com/extdn/installer-m2/raw/v1.0.0-rc8/build/extdn_installer.phar -o extdn_installer.phar
 chmod +x extdn_installer.phar
 ./extdn_installer.phar $@
 RET_VALUE=$?

src/Command/Installer.php

@@ -45,6 +45,11 @@ public function install(
         try {
             $this->say('Running ExtDN Installer ');
 
+            if ($this->getOption('simulate')) {
+                $this->exitWithError(
+                    'Simulated installs are currently not supported.'
+                );
+            }
             # TODO maybe use a collection instead to run multiple tasks chained together
             # check correct directory
             $this->taskCheckMagentoRoot()->run();