UnusedRelationsRemover::removeRelationsBySingularOrPlural() - Code Metrics - Inspection of "Refactor and optimise tests" - edmondscommerce/doctrine-static-meta - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#101)

by joseph

created 2018-08-22 19:51 UTC

removeRelationsBySingularOrPlural() A

↳ Parent: UnusedRelationsRemover

Complexity

Conditions	4
Paths	4

Size

Total Lines	17
Code Lines	10

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	11
CRAP Score	4

Importance

Changes

Metric	Value
eloc	10
dl	0
loc	17
ccs	11
cts	11
cp	1
rs	9.9332
c	0
b	0
f	0
cc	4
nc	4
nop	2
crap	4

<?php declare(strict_types=1);

namespace EdmondsCommerce\DoctrineStaticMeta\CodeGeneration;

use Symfony\Component\Finder\Finder;
use Symfony\Component\Finder\SplFileInfo;

/**
 * Class UnusedCodeRemover
 *
 * Finds and removes generated code that does not seem to be used
 *
 * Caution - this is destructive - do not use in a dirty repo!!!
 *
 * @package EdmondsCommerce\DoctrineStaticMeta\CodeGeneration
 */
class UnusedRelationsRemover
{
    /**
     * @var array
     */
    private $filesRemoved = [];
    /**
     * @var string
     */
    private $pathToProjectRoot;
    /**
     * @var string
     */
    private $projectRootNamespace;
    /**
     * @var array
     */
    private $relationTraits = [];
    /**
     * @var array
     */
    private $entitySubFqnsToName = [];
    /**
     * @var array
     */
    private $entityPaths = [];


    public function run(string $pathToProjectRoot, string $projectRootNamespace): array
    {
        $this->pathToProjectRoot    = $pathToProjectRoot;
        $this->projectRootNamespace = $projectRootNamespace;
        $this->initArrayOfRelationTraits();
        $this->initAllEntitySubFqns();
        foreach (\array_keys($this->entitySubFqnsToName) as $entitySubFqn) {
            $this->removeUnusedEntityRelations($entitySubFqn);
        }

        return $this->filesRemoved;
    }

    private function initArrayOfRelationTraits(): void
    {
        $this->relationTraits = [];
        $pluralRelations      = $this->getFileInfoObjectsInDirs(
            [
                __DIR__ . '/../../codeTemplates/src/Entity/Relations/TemplateEntity/Traits/HasTemplateEntities',
            ]
        );
        foreach ($pluralRelations as $pluralRelation) {
            $realPath                                  = $pluralRelation->getRealPath();
            $this->relationTraits['plural'][$realPath] = $this->convertPathToNamespace(
                $this->getSubPathFromSrcAndTrimExtension(
                    $realPath
                )
            );
        }
        $singularRelations = $this->getFileInfoObjectsInDirs(
            [
                __DIR__ . '/../../codeTemplates/src/Entity/Relations/TemplateEntity/Traits/HasTemplateEntity',
            ]
        );
        foreach ($singularRelations as $singularRelation) {
            $realPath                                    = $singularRelation->getRealPath();
            $this->relationTraits['singular'][$realPath] = $this->convertPathToNamespace(
                $this->getSubPathFromSrcAndTrimExtension(
                    $realPath
                )
            );
        }
    }

    /**
     * @param array $dirs
     *
     * @return array|SplFileInfo[]
     */
    private function getFileInfoObjectsInDirs(array $dirs): array
    {
        $finder   = new Finder();
        $iterable = $finder->files()->in($dirs);

        return iterator_to_array($iterable);
    }

    private function convertPathToNamespace(string $path): string
    {
        return \str_replace('/', '\\', $path);
    }

    private function getSubPathFromSrcAndTrimExtension(string $path): string
    {
        $subPath = substr($path, strpos($path, 'src') + 3);
        $subPath = substr($subPath, 0, strpos($subPath, '.php'));

        return $subPath;
    }

    private function initAllEntitySubFqns(): void
    {
        $files                     = $this->getFileInfoObjectsInDirs([$this->pathToProjectRoot . '/src/Entities']);
        $this->entitySubFqnsToName = [];
        foreach ($files as $file) {
            $realPath                                 = $file->getRealPath();
            $this->entityPaths[$realPath]             = \file_get_contents($realPath);
            $entitySubFqn                             = $this->getEntitySubFqnFromEntityFilePath($realPath);
            $this->entitySubFqnsToName[$entitySubFqn] = $this->getPluralSingularFromEntitySubFqn($entitySubFqn);
        }
    }

    private function getEntitySubFqnFromEntityFilePath(string $path): string
    {
        $subPath = $this->getSubPathFromSrcAndTrimExtension($path);

        return \str_replace('/', '\\', $subPath);
    }

    private function getPluralSingularFromEntitySubFqn(string $entitySubFqn): array
    {
        $entityFqn = $this->projectRootNamespace . $entitySubFqn;

        return [
            'singular' => ucfirst($entityFqn::getSingular()),
            'plural'   => ucfirst($entityFqn::getPlural()),
        ];
    }

    private function removeUnusedEntityRelations(string $entitySubFqn): void
    {
        $entitySubSubFqn = $this->getEntitySubSubFqn($entitySubFqn);
        $hasPlural       = $this->removeRelationsBySingularOrPlural('plural', $entitySubSubFqn);
        $hasSingular     = $this->removeRelationsBySingularOrPlural('singular', $entitySubSubFqn);

        if (false === $hasPlural && false === $hasSingular) {
            $this->removeAllRelationFilesForEntity($entitySubSubFqn);

            return;
        }
        if (false === $hasPlural) {
            $this->removeHasPluralOrSingularInterfaceAndAbstract(
                'plural',
                $entitySubFqn,
                $entitySubSubFqn
            );
        }

        if (false === $hasSingular) {
            $this->removeHasPluralOrSingularInterfaceAndAbstract(
                'singular',
                $entitySubFqn,
                $entitySubSubFqn
            );
        }
    }

    private function getEntitySubSubFqn(string $entitySubFqn): string
    {
        return substr($entitySubFqn, \strlen('\\Entities\\'));
    }

    private function removeRelationsBySingularOrPlural(string $singularOrPlural, string $entitySubSubFqn): bool
    {
        $foundUsedRelations = false;

        foreach ($this->relationTraits[$singularOrPlural] as $relationTrait) {
            $relationType = $this->getRelationType($relationTrait);
            $pattern      = $this->getRegexForRelationTraitUseStatement($entitySubSubFqn, $relationType);
            foreach ($this->entityPaths as $entityFileContents) {
                if (1 === \preg_match($pattern, $entityFileContents)) {
                    $foundUsedRelations = true;
                    continue 2;
                }
            }
            $this->removeRelation($entitySubSubFqn, $relationType);
        }

        return $foundUsedRelations;
    }

    private function getRelationType(string $relationTraitSubFqn)
    {
        return preg_split(
            '%\\\\HasTemplateEntit(y|ies)\\\\HasTemplateEntit(y|ies)%',
            $relationTraitSubFqn
        )[1];
    }

    private function getRegexForRelationTraitUseStatement(string $entitySubSubFqn, string $relationType): string
    {
        $entitySubSubFqn = \str_replace('\\', '\\\\', $entitySubSubFqn);

        return <<<REGEXP
%use .+?\\\\Entity\\\\Relations\\\\$entitySubSubFqn([^;]+?)$relationType%
REGEXP;
    }

    private function removeRelation(string $entitySubSubFqn, string $relationType): void
    {
        $directory = $this->getPathToRelationRootForEntity($entitySubSubFqn);
        if (!\is_dir($directory)) {
            return;
        }
        $finder = (new Finder())->files()
                                ->in($directory)
                                ->path('%^(Interfaces|Traits).+?' . $relationType . '%');
        $this->removeFoundFiles($finder);
    }

    private function getPathToRelationRootForEntity(string $entitySubSubFqn): string
    {
        return $this->pathToProjectRoot
               . '/src/Entity/Relations/'
               . \str_replace(
                   '\\',
                   '/',
                   $entitySubSubFqn
               );
    }

    private function removeFoundFiles(Finder $finder): void
    {
        foreach ($finder as $fileInfo) {
            $this->removeFile($fileInfo->getRealPath());
        }
    }

    private function removeFile(string $path): void
    {
        if (!\file_exists($path)) {
            return;
        }
        $this->filesRemoved[] = $path;
        unlink($path);
    }

    private function removeAllRelationFilesForEntity(string $entitySubSubFqn): void
    {
        $relationsPath = $this->getPathToRelationRootForEntity($entitySubSubFqn);
        $directories   = [
            "$relationsPath/Traits",
            "$relationsPath/Interfaces",
        ];
        foreach ($directories as $directory) {
            if (!\is_dir($directory)) {
                continue;
            }
            $finder = (new Finder())->files()
                                    ->in($directory);
            $this->removeFoundFiles($finder);
        }
    }

    private function removeHasPluralOrSingularInterfaceAndAbstract(
        string $pluralOrSingular,
        string $entitySubFqn,
        string $entitySubSubFqn
    ): void {
        $directory = $this->getPathToRelationRootForEntity($entitySubSubFqn);
        if (!\is_dir($directory)) {
            return;
        }
        $hasName = $this->entitySubFqnsToName[$entitySubFqn][$pluralOrSingular];
        $finder  = (new Finder())->files()
                                 ->in($directory)
                                 ->path(
                                     '%^(Interfaces|Traits).+?Has' . $hasName . '(/|Abstract\.php|Interface\.php)%'
                                 );
        $this->removeFoundFiles($finder);
    }
}


1		<?php declare(strict_types=1);
2
3		namespace EdmondsCommerce\DoctrineStaticMeta\CodeGeneration;
4
5		use Symfony\Component\Finder\Finder;
6		use Symfony\Component\Finder\SplFileInfo;
7
8		/**
9		* Class UnusedCodeRemover
10		*
11		* Finds and removes generated code that does not seem to be used
12		*
13		* Caution - this is destructive - do not use in a dirty repo!!!
14		*
15		* @package EdmondsCommerce\DoctrineStaticMeta\CodeGeneration
16		*/
17		class UnusedRelationsRemover
18		{
19		/**
20		* @var array
21		*/
22		private $filesRemoved = [];
23		/**
24		* @var string
25		*/
26		private $pathToProjectRoot;
27		/**
28		* @var string
29		*/
30		private $projectRootNamespace;
31		/**
32		* @var array
33		*/
34		private $relationTraits = [];
35		/**
36		* @var array
37		*/
38		private $entitySubFqnsToName = [];
39		/**
40		* @var array
41		*/
42		private $entityPaths = [];
43
44
45	2	public function run(string $pathToProjectRoot, string $projectRootNamespace): array
46		{
47	2	$this->pathToProjectRoot = $pathToProjectRoot;
48	2	$this->projectRootNamespace = $projectRootNamespace;
49	2	$this->initArrayOfRelationTraits();
50	2	$this->initAllEntitySubFqns();
51	2	foreach (\array_keys($this->entitySubFqnsToName) as $entitySubFqn) {
52	2	$this->removeUnusedEntityRelations($entitySubFqn);
53		}
54
55	2	return $this->filesRemoved;
56		}
57
58	2	private function initArrayOfRelationTraits(): void
59		{
60	2	$this->relationTraits = [];
61	2	$pluralRelations = $this->getFileInfoObjectsInDirs(
62		[
63	2	__DIR__ . '/../../codeTemplates/src/Entity/Relations/TemplateEntity/Traits/HasTemplateEntities',
64		]
65		);
66	2	foreach ($pluralRelations as $pluralRelation) {
67	2	$realPath = $pluralRelation->getRealPath();
68	2	$this->relationTraits['plural'][$realPath] = $this->convertPathToNamespace(
69	2	$this->getSubPathFromSrcAndTrimExtension(
70	2	$realPath
71		)
72		);
73		}
74	2	$singularRelations = $this->getFileInfoObjectsInDirs(
75		[
76	2	__DIR__ . '/../../codeTemplates/src/Entity/Relations/TemplateEntity/Traits/HasTemplateEntity',
77		]
78		);
79	2	foreach ($singularRelations as $singularRelation) {
80	2	$realPath = $singularRelation->getRealPath();
81	2	$this->relationTraits['singular'][$realPath] = $this->convertPathToNamespace(
82	2	$this->getSubPathFromSrcAndTrimExtension(
83	2	$realPath
84		)
85		);
86		}
87	2	}
88
89		/**
90		* @param array $dirs
91		*
92		* @return array\|SplFileInfo[]
93		*/
94	2	private function getFileInfoObjectsInDirs(array $dirs): array
95		{
96	2	$finder = new Finder();
97	2	$iterable = $finder->files()->in($dirs);
98
99	2	return iterator_to_array($iterable);
100		}
101
102	2	private function convertPathToNamespace(string $path): string
103		{
104	2	return \str_replace('/', '\\', $path);
105		}
106
107	2	private function getSubPathFromSrcAndTrimExtension(string $path): string
108		{
109	2	$subPath = substr($path, strpos($path, 'src') + 3);
110	2	$subPath = substr($subPath, 0, strpos($subPath, '.php'));
111
112	2	return $subPath;
113		}
114
115	2	private function initAllEntitySubFqns(): void
116		{
117	2	$files = $this->getFileInfoObjectsInDirs([$this->pathToProjectRoot . '/src/Entities']);
118	2	$this->entitySubFqnsToName = [];
119	2	foreach ($files as $file) {
120	2	$realPath = $file->getRealPath();
121	2	$this->entityPaths[$realPath] = \file_get_contents($realPath);
122	2	$entitySubFqn = $this->getEntitySubFqnFromEntityFilePath($realPath);
123	2	$this->entitySubFqnsToName[$entitySubFqn] = $this->getPluralSingularFromEntitySubFqn($entitySubFqn);
124		}
125	2	}
126
127	2	private function getEntitySubFqnFromEntityFilePath(string $path): string
128		{
129	2	$subPath = $this->getSubPathFromSrcAndTrimExtension($path);
130
131	2	return \str_replace('/', '\\', $subPath);
132		}
133
134	2	private function getPluralSingularFromEntitySubFqn(string $entitySubFqn): array
135		{
136	2	$entityFqn = $this->projectRootNamespace . $entitySubFqn;
137
138		return [
139	2	'singular' => ucfirst($entityFqn::getSingular()),
140	2	'plural' => ucfirst($entityFqn::getPlural()),
141		];
142		}
143
144	2	private function removeUnusedEntityRelations(string $entitySubFqn): void
145		{
146	2	$entitySubSubFqn = $this->getEntitySubSubFqn($entitySubFqn);
147	2	$hasPlural = $this->removeRelationsBySingularOrPlural('plural', $entitySubSubFqn);
148	2	$hasSingular = $this->removeRelationsBySingularOrPlural('singular', $entitySubSubFqn);
149
150	2	if (false === $hasPlural && false === $hasSingular) {
151	2	$this->removeAllRelationFilesForEntity($entitySubSubFqn);
152
153	2	return;
154		}
155	1	if (false === $hasPlural) {
156	1	$this->removeHasPluralOrSingularInterfaceAndAbstract(
157	1	'plural',
158	1	$entitySubFqn,
159	1	$entitySubSubFqn
160		);
161		}
162
163	1	if (false === $hasSingular) {
164	1	$this->removeHasPluralOrSingularInterfaceAndAbstract(
165	1	'singular',
166	1	$entitySubFqn,
167	1	$entitySubSubFqn
168		);
169		}
170	1	}
171
172	2	private function getEntitySubSubFqn(string $entitySubFqn): string
173		{
174	2	return substr($entitySubFqn, \strlen('\\Entities\\'));
175		}
176
177	2	private function removeRelationsBySingularOrPlural(string $singularOrPlural, string $entitySubSubFqn): bool
178		{
179	2	$foundUsedRelations = false;
180
181	2	foreach ($this->relationTraits[$singularOrPlural] as $relationTrait) {
182	2	$relationType = $this->getRelationType($relationTrait);
183	2	$pattern = $this->getRegexForRelationTraitUseStatement($entitySubSubFqn, $relationType);
184	2	foreach ($this->entityPaths as $entityFileContents) {
185	2	if (1 === \preg_match($pattern, $entityFileContents)) {
186	1	$foundUsedRelations = true;
187	2	continue 2;
188		}
189		}
190	2	$this->removeRelation($entitySubSubFqn, $relationType);
191		}
192
193	2	return $foundUsedRelations;
194		}
195
196	2	private function getRelationType(string $relationTraitSubFqn)
197		{
198	2	return preg_split(
199	2	'%\\\\HasTemplateEntit(y\|ies)\\\\HasTemplateEntit(y\|ies)%',
200	2	$relationTraitSubFqn
201	2	)[1];
202		}
203
204	2	private function getRegexForRelationTraitUseStatement(string $entitySubSubFqn, string $relationType): string
205		{
206	2	$entitySubSubFqn = \str_replace('\\', '\\\\', $entitySubSubFqn);
207
208		return <<<REGEXP
209	2	%use .+?\\\\Entity\\\\Relations\\\\$entitySubSubFqn([^;]+?)$relationType%
210		REGEXP;
211		}
212
213	2	private function removeRelation(string $entitySubSubFqn, string $relationType): void
214		{
215	2	$directory = $this->getPathToRelationRootForEntity($entitySubSubFqn);
216	2	if (!\is_dir($directory)) {
217		return;
218		}
219	2	$finder = (new Finder())->files()
220	2	->in($directory)
221	2	->path('%^(Interfaces\|Traits).+?' . $relationType . '%');
222	2	$this->removeFoundFiles($finder);
223	2	}
224
225	2	private function getPathToRelationRootForEntity(string $entitySubSubFqn): string
226		{
227	2	return $this->pathToProjectRoot
228	2	. '/src/Entity/Relations/'
229	2	. \str_replace(
230	2	'\\',
231	2	'/',
232	2	$entitySubSubFqn
233		);
234		}
235
236	2	private function removeFoundFiles(Finder $finder): void
237		{
238	2	foreach ($finder as $fileInfo) {
239	2	$this->removeFile($fileInfo->getRealPath());
240		}
241	2	}
242
243	2	private function removeFile(string $path): void
244		{
245	2	if (!\file_exists($path)) {
246		return;
247		}
248	2	$this->filesRemoved[] = $path;
249	2	unlink($path);
250	2	}
251
252	2	private function removeAllRelationFilesForEntity(string $entitySubSubFqn): void
253		{
254	2	$relationsPath = $this->getPathToRelationRootForEntity($entitySubSubFqn);
255		$directories = [
256	2	"$relationsPath/Traits",
257	2	"$relationsPath/Interfaces",
258		];
259	2	foreach ($directories as $directory) {
260	2	if (!\is_dir($directory)) {
261		continue;
262		}
263	2	$finder = (new Finder())->files()
264	2	->in($directory);
265	2	$this->removeFoundFiles($finder);
266		}
267	2	}
268
269	1	private function removeHasPluralOrSingularInterfaceAndAbstract(
270		string $pluralOrSingular,
271		string $entitySubFqn,
272		string $entitySubSubFqn
273		): void {
274	1	$directory = $this->getPathToRelationRootForEntity($entitySubSubFqn);
275	1	if (!\is_dir($directory)) {
276		return;
277		}
278	1	$hasName = $this->entitySubFqnsToName[$entitySubFqn][$pluralOrSingular];
279	1	$finder = (new Finder())->files()
280	1	->in($directory)
281	1	->path(
282	1	'%^(Interfaces\|Traits).+?Has' . $hasName . '(/\|Abstract\.php\|Interface\.php)%'
283		);
284	1	$this->removeFoundFiles($finder);
285	1	}
286		}
287

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Pull Request — master (#101)

removeRelationsBySingularOrPlural() A

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Duplication

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