Merge pull request #26 from SebSept/auto_config_phpstan

auto detect _PS_ROOT_DIR_ on phpstan init

Author: SebSept

README.md

@@ -20,7 +20,7 @@ There's a couple options available, [this one](https://github.com/bamarni/symfon
 ## Featured tools
 
 - Code formating : [php-cs-fixer](https://github.com/FriendsOfPhp/PHP-CS-Fixer) configured using prestashop standard, ready to use out of the box.
-- Code analysis : [phpstan](https://phpstan.org/) almost ready to use with Prestashop standard, it asks a question then you're ready. 
+- Code analysis : [phpstan](https://phpstan.org/) autodetect PrestaShop root directory or  asks (nothing more to do). 
 - `fill-indexes` command, to add required index.php files. (see below for details)
 - git pre-commit hook installer (details below)
 
@@ -65,16 +65,19 @@ Allows complying with the [Prestashop standards](https://devdocs.prestashop.com/
 
 `composer psdt:phpstan [--reconfigure]`
 
-Run Phpstan from prestashop/prestashop-dev-tools.
+Run phpstan configured with  [Prestashop standards](https://devdocs.prestashop.com/1.7/development/coding-standards/) against a PrestaShop installation.
 
-Just like psdt:php-cs-fixer, the first run install the package and creates/overrides the phpstan.neon configuration with Prestashop standards.
+The first run or `composer psdt:phpstan --reconfigure` do : 
+  - install `prestashop/prestashop-dev-tools` if needed
+  - creates/overrides the phpstan.neon configuration with Prestashop standards.
+  - guess the \_PS_ROOT_DIR_ and asks for confirmation (or you can provide another path) (this path is needed for analyse)
+  - install a composer script `phpstan`
+
+The next runs will trigger `composer psdt:phpstan`
 
 Provided by [PrestaShop/php-dev-tools/](https://github.com/PrestaShop/php-dev-tools/).  
 Autoinstallation provided by this package.
 
-Allows complying with the [Prestashop standards](https://devdocs.prestashop.com/1.7/development/coding-standards/).
-
-
 ### fill-indexes
 
 `composer psdt:fill-indexes`

src/Command/PrestashopDevTools/PrestashopDevToolsPhpStan.php

@@ -62,7 +62,6 @@ protected function configure(): void
 
     /**
      * Is Tool configurated ?
-     *
      * Tool is considered configured if
      * - phpstan.neon exists
      * - "phpstan" composer script exists.
@@ -85,8 +84,17 @@ public function isToolConfigured(): bool
      */
     public function configureTool(): void
     {
-        // ----- add phpstan.neon
+        $this->copyPhpStanNeonFile();
+        $this->askPrestashopPathAndAddComposerScripts();
+    }
 
+    public function getComposerScriptName(): string
+    {
+        return 'phpstan';
+    }
+
+    private function copyPhpStanNeonFile(): void
+    {
         // first, delete the file, otherwise the installation process does not write the new file.
         // https://github.com/PrestaShop/php-dev-tools/issues/58
         // that's a bit touchy, it relies on the fact the file name won't change. Otherwise our workaround will fail.
@@ -113,17 +121,21 @@ public function configureTool(): void
         $this->getIO()->write('<bg=green>successful</bg=green>');
         $this->getIO()->info(' in fact, it\'s only PROBABLY successfull.');
         $this->getIO()->info(' https://github.com/PrestaShop/php-dev-tools/issues/58');
+    }
 
-        // ------ add composer script
+    /**
+     * @throws \Seld\JsonLint\ParsingException
+     */
+    private function askPrestashopPathAndAddComposerScripts(): void
+    {
         $this->getIO()->write('To perform code analyse, phpstan needs a path to a Prestashop installation.');
-        $prestashopPath = $this->getIO()->ask('What is the path to is this Prestashop installation ? ');
+        $guessedPsRoot = realpath(getcwd() . '/../../') ?: '';
+        $prestashopPath = $this->getIO()->ask(
+            sprintf('What is the path to is this Prestashop installation %s ? ', '(leave blank to use <comment>' . $guessedPsRoot . '</comment>)'),
+            $guessedPsRoot
+        );
         $this->addComposerScript([
             "@putenv _PS_ROOT_DIR_=$prestashopPath",
             'phpstan analyse', ]);
     }
-
-    public function getComposerScriptName(): string
-    {
-        return 'phpstan';
-    }
 }