FEATURE: Check removed globals

* Add feature, tests and configuration.
* Refactor to follow DRY, move prepareStructure to abstract.

Resolves: #77

src/Standards/Typo3Update/Configuration/Removed/Globals/7.0.yaml

@@ -0,0 +1,8 @@
+# Breaking changes in 7.0: https://docs.typo3.org/typo3cms/extensions/core/7.6/Changelog/7.0/Index.html#breaking-changes
+'7.0':
+  typo3CacheManager:
+    replacement: 'Use GeneralUtility::makeInstance() instead'
+    docsUrl: 'https://docs.typo3.org/typo3cms/extensions/core/7.6/Changelog/7.0/Breaking-62416-DeprecatedCodeRemovalInCoreSysext.html#removed-php-classes'
+  typo3CacheFactory:
+    replacement: 'Use GeneralUtility::makeInstance() instead'
+    docsUrl: 'https://docs.typo3.org/typo3cms/extensions/core/7.6/Changelog/7.0/Breaking-62416-DeprecatedCodeRemovalInCoreSysext.html#removed-php-classes'

src/Standards/Typo3Update/Options.php

@@ -121,6 +121,19 @@ class Options
         );
     }
 
+    /**
+     * Returns an array of absolute file names containing removed globals configurations.
+     *
+     * @return array<string>
+     */
+    public static function getRemovedGlobalConfigFiles()
+    {
+        return static::getOptionFileNames(
+            'removedGlobalConfigFiles',
+            __DIR__ . '/Configuration/Removed/Globals/*.yaml'
+        );
+    }
+
     /**
      * Get the option by optionName, if not defined, use default.
      *

src/Standards/Typo3Update/Sniffs/ExtendedPhpCsSupportTrait.php

@@ -66,4 +66,26 @@ trait ExtendedPhpCsSupportTrait
 
         return true;
     }
+
+    /**
+     * Check whether variable at $stackPtr is global.
+     *
+     * @param PhpCsFile $phpcsFile
+     * @param int $stackPtr
+     *
+     * @return bool
+     */
+    protected function isGlobalVariable(PhpCsFile $phpcsFile, $stackPtr)
+    {
+        $position = $phpcsFile->findPrevious(T_GLOBAL, $stackPtr, null, false, null, true);
+        if ($position !== false) {
+            return true;
+        }
+
+        if ($phpcsFile->getTokens()[$stackPtr]['content'] === '$GLOBALS') {
+            return true;
+        }
+
+        return false;
+    }
 }

src/Standards/Typo3Update/Sniffs/Removed/AbstractGenericUsage.php

@@ -33,6 +33,27 @@ abstract class AbstractGenericUsage extends BaseAbstractYamlRemovedUsage impleme
      */
     abstract protected function findRemoved(PhpCsFile $phpcsFile, $stackPtr);
 
+    /**
+     * @param array $typo3Versions
+     * @return array
+     */
+    protected function prepareStructure(array $typo3Versions)
+    {
+        $newStructure = [];
+
+        foreach ($typo3Versions as $typo3Version => $removals) {
+            foreach ($removals as $removed => $config) {
+                $config['name'] = $removed;
+                $config['identifier'] = $removed;
+                $config['oldUsage'] = $removed;
+                $config['versionRemoved'] = $typo3Version;
+                $newStructure[$removed] = $config;
+            }
+        }
+
+        return $newStructure;
+    }
+
     /**
      * @param PhpCsFile $phpcsFile
      * @param int $stackPtr

src/Standards/Typo3Update/Sniffs/Removed/GenericGlobalSniff.php

@@ -0,0 +1,66 @@
+<?php
+
+/*
+ * Copyright (C) 2017  Daniel Siepmann <coding@daniel-siepmann.de>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+use PHP_CodeSniffer_File as PhpCsFile;
+use Typo3Update\Options;
+use Typo3Update\Sniffs\Removed\AbstractGenericUsage;
+use Typo3Update\Sniffs\ExtendedPhpCsSupportTrait;
+
+class Typo3Update_Sniffs_Removed_GenericGlobalSniff extends AbstractGenericUsage
+{
+    use ExtendedPhpCsSupportTrait;
+
+    public function register()
+    {
+        return [T_VARIABLE];
+    }
+
+    /**
+     * @param PhpCsFile $phpcsFile
+     * @param int $stackPtr
+     * @return array
+     */
+    protected function findRemoved(PhpCsFile $phpcsFile, $stackPtr)
+    {
+        if ($this->isGlobalVariable($phpcsFile, $stackPtr) === false) {
+            return [];
+        }
+
+        $variableName = substr($phpcsFile->getTokens()[$stackPtr]['content'], 1);
+        if ($variableName === 'GLOBALS') {
+            $variableName = trim(
+                $phpcsFile->getTokens()[$phpcsFile->findNext(T_CONSTANT_ENCAPSED_STRING, $stackPtr)]['content'],
+                '\'"'
+            );
+        }
+
+        if ($this->configured->isRemoved($variableName)) {
+            return [$this->configured->getRemoved($variableName)];
+        }
+
+        return [];
+    }
+
+    protected function getRemovedConfigFiles()
+    {
+        return Options::getRemovedGlobalConfigFiles();
+    }
+}

tests/Fixtures/Standards/Typo3Update/Sniffs/Removed/GenericGlobalSniff/Expected.json

@@ -0,0 +1,33 @@
+{
+    "files": {
+        "InputFileForIssues.php": {
+            "errors": 0,
+            "messages": [
+                {
+                    "column": 12,
+                    "fixable": false,
+                    "line": 24,
+                    "message": "Calls to removed code are not allowed; found typo3CacheFactory. Removed in 7.0. Use GeneralUtility::makeInstance() instead. See: https://docs.typo3.org/typo3cms/extensions/core/7.6/Changelog/7.0/Breaking-62416-DeprecatedCodeRemovalInCoreSysext.html#removed-php-classes",
+                    "severity": 5,
+                    "source": "Typo3Update.Removed.GenericGlobal.typo3CacheFactory",
+                    "type": "WARNING"
+                },
+                {
+                    "column": 13,
+                    "fixable": false,
+                    "line": 25,
+                    "message": "Calls to removed code are not allowed; found typo3CacheManager. Removed in 7.0. Use GeneralUtility::makeInstance() instead. See: https://docs.typo3.org/typo3cms/extensions/core/7.6/Changelog/7.0/Breaking-62416-DeprecatedCodeRemovalInCoreSysext.html#removed-php-classes",
+                    "severity": 5,
+                    "source": "Typo3Update.Removed.GenericGlobal.typo3CacheManager",
+                    "type": "WARNING"
+                }
+            ],
+            "warnings": 2
+        }
+    },
+    "totals": {
+        "errors": 0,
+        "fixable": 0,
+        "warnings": 2
+    }
+}

tests/Fixtures/Standards/Typo3Update/Sniffs/Removed/GenericGlobalSniff/InputFileForIssues.php

@@ -0,0 +1,27 @@
+<?php
+
+/*
+ * Copyright (C) 2017  Daniel Siepmann <coding@daniel-siepmann.de>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+function name()
+{
+    global $typo3CacheFactory;
+    $typo3CacheManager = $GLOBALS['typo3CacheManager'];
+    $typo3CacheManager->something();
+}

tests/Sniffs/Removed/GenericGlobalSniffTest.php

@@ -0,0 +1,28 @@
+<?php
+
+namespace Typo3Update\Tests\Sniffs\Removed;
+
+/*
+ * Copyright (C) 2017  Daniel Siepmann <coding@daniel-siepmann.de>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+use Typo3Update\Tests\SniffsTest;
+
+class GenericGlobalSniffTest extends SniffsTest
+{
+}