functions.php ➔ iterables_to_iterator() - Code Metrics - Inspection of "Rework config and command (#144)" - humbug/php-scoper - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 32a903...cb8294 )

by Théo

created 2018-02-02 22:49 UTC

functions.php ➔ iterables_to_iterator() A

↳ Parent: Project

Complexity

Conditions	4
Paths	4

Size

Total Lines	17
Code Lines	10

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	4
eloc	10
nc	4
nop	1
dl	0
loc	17
rs	9.2
c	0
b	0
f	0

<?php

declare(strict_types=1);

/*
 * This file is part of the humbug/php-scoper package.
 *
 * Copyright (c) 2017 Théo FIDRY <[email protected]>,
 *                    Pádraic Brady <[email protected]>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Humbug\PhpScoper;

use AppendIterator;
use ArrayIterator;
use Humbug\PhpScoper\Console\Application;
use Humbug\PhpScoper\Console\Command\AddPrefixCommand;
use Humbug\PhpScoper\Console\Command\InitCommand;
use Humbug\PhpScoper\Console\Command\SelfUpdateCommand;
use Humbug\PhpScoper\Scoper\Composer\InstalledPackagesScoper;
use Humbug\PhpScoper\Scoper\Composer\JsonFileScoper;
use Humbug\PhpScoper\Scoper\NullScoper;
use Humbug\PhpScoper\Scoper\PatchScoper;
use Humbug\PhpScoper\Scoper\PhpScoper;
use Humbug\PhpScoper\Scoper\TraverserFactory;
use Humbug\SelfUpdate\Exception\RuntimeException as SelfUpdateRuntimeException;
use Humbug\SelfUpdate\Updater;
use Iterator;
use IteratorAggregate;
use PackageVersions\Versions;
use PhpParser\Node;
use PhpParser\Parser;
use PhpParser\ParserFactory;
use Symfony\Component\Console\Application as SymfonyApplication;
use Symfony\Component\Filesystem\Filesystem;

/**
 * @private
 */
function create_application(): SymfonyApplication
{
    $app = new Application('PHP Scoper', get_version());

    $app->addCommands([
        new AddPrefixCommand(
            new Filesystem(),
            create_scoper()
        ),
        new InitCommand(),
    ]);

    if ('phar:' === substr(__FILE__, 0, 5)) {
        try {
            $updater = new Updater();
        } catch (SelfUpdateRuntimeException $e) {
            /* Allow E2E testing of unsigned phar */
            $updater = new Updater(null, false);
        }
        $app->add(
            new SelfUpdateCommand(
                $updater
            )
        );
    }

    return $app;
}

/**
 * @private
 */
function get_version(): string
{
    $rawVersion = Versions::getVersion('humbug/php-scoper');

    list($prettyVersion, $commitHash) = explode('@', $rawVersion);

    return (1 === preg_match('/9{7}/', $prettyVersion)) ? $commitHash : $prettyVersion;
}

/**
 * @private
 */
function create_scoper(): Scoper
{
    return new PatchScoper(
        new JsonFileScoper(
            new InstalledPackagesScoper(
                new PhpScoper(
                    create_parser(),
                    new NullScoper(),
                    new TraverserFactory()
                )
            )
        )
    );
}

/**
 * @private
 */
function create_parser(): Parser
{
    return (new ParserFactory())->create(ParserFactory::ONLY_PHP7);
}

/**
 * @param string[] $paths Absolute paths
 *
 * @return string
 */
function get_common_path(array $paths): string
{
    if (0 === count($paths)) {
        return '';
    }

    $lastOffset = 1;
    $common = DIRECTORY_SEPARATOR;

    while (false !== ($index = strpos($paths[0], DIRECTORY_SEPARATOR, $lastOffset))) {
        $dirLen = $index - $lastOffset + 1;
        $dir = substr($paths[0], $lastOffset, $dirLen);

        foreach ($paths as $path) {
            if (substr($path, $lastOffset, $dirLen) !== $dir) {
                if (0 < strlen($common) && DIRECTORY_SEPARATOR === $common[strlen($common) - 1]) {
                    $common = substr($common, 0, strlen($common) - 1);
                }

                return $common;
            }
        }

        $common .= $dir;
        $lastOffset = $index + 1;
    }

    $common = substr($common, 0, -1);

    if (0 < strlen($common) && DIRECTORY_SEPARATOR === $common[strlen($common) - 1]) {
        $common = substr($common, 0, strlen($common) - 1);
    }

    return $common;
}

/**
 * In-house clone functions. Does a partial clone that should be enough to provide the immutability required in some
 * places for the scoper. It however does not guarantee a deep cloning as would be horribly slow for no good reasons.
 * A better alternative would be to find a way to push immutability upstream in PHP-Parser directly.
 *
 * @param Node $node
 *
 * @return Node
 */
function clone_node(Node $node): Node
{
    $clone = deep_clone($node);

    foreach ($node->getAttributes() as $key => $attribute) {
        $clone->setAttribute($key, $attribute);
    }

    return $clone;
}

/**
 * @param mixed $node
 *
 * @return mixed
 *
 * @internal
 */
function deep_clone($node)
{
    if (is_array($node)) {
        return array_map(__FUNCTION__, $node);
    }

    if (null === $node || is_scalar($node)) {
        return $node;
    }

    return unserialize(serialize($node));
}

function iterables_to_iterator(iterable ...$iterables): Iterator
{
    $iterator = new AppendIterator();

    foreach ($iterables as $iterable) {
        if (is_array($iterable)) {
            $iterator->append(new ArrayIterator($iterable));
        } elseif ($iterable instanceof IteratorAggregate) {
            $iterator->append($iterable->getIterator());
        } else {
            /* @var Iterator $iterable */
            $iterator->append($iterable);
        }
    }

    return $iterator;
}


1		<?php
2
3		declare(strict_types=1);
4
5		/*
6		* This file is part of the humbug/php-scoper package.
7		*
8		* Copyright (c) 2017 Théo FIDRY <[email protected]>,
9		* Pádraic Brady <[email protected]>
10		*
11		* For the full copyright and license information, please view the LICENSE
12		* file that was distributed with this source code.
13		*/
14
15		namespace Humbug\PhpScoper;
16
17		use AppendIterator;
18		use ArrayIterator;
19		use Humbug\PhpScoper\Console\Application;
20		use Humbug\PhpScoper\Console\Command\AddPrefixCommand;
21		use Humbug\PhpScoper\Console\Command\InitCommand;
22		use Humbug\PhpScoper\Console\Command\SelfUpdateCommand;
23		use Humbug\PhpScoper\Scoper\Composer\InstalledPackagesScoper;
24		use Humbug\PhpScoper\Scoper\Composer\JsonFileScoper;
25		use Humbug\PhpScoper\Scoper\NullScoper;
26		use Humbug\PhpScoper\Scoper\PatchScoper;
27		use Humbug\PhpScoper\Scoper\PhpScoper;
28		use Humbug\PhpScoper\Scoper\TraverserFactory;
29		use Humbug\SelfUpdate\Exception\RuntimeException as SelfUpdateRuntimeException;
30		use Humbug\SelfUpdate\Updater;
31		use Iterator;
32		use IteratorAggregate;
33		use PackageVersions\Versions;
34		use PhpParser\Node;
35		use PhpParser\Parser;
36		use PhpParser\ParserFactory;
37		use Symfony\Component\Console\Application as SymfonyApplication;
38		use Symfony\Component\Filesystem\Filesystem;
39
40		/**
41		* @private
42		*/
43		function create_application(): SymfonyApplication
44		{
45		$app = new Application('PHP Scoper', get_version());
46
47		$app->addCommands([
48		new AddPrefixCommand(
49		new Filesystem(),
50		create_scoper()
51		),
52		new InitCommand(),
53		]);
54
55		if ('phar:' === substr(__FILE__, 0, 5)) {
56		try {
57		$updater = new Updater();
58		} catch (SelfUpdateRuntimeException $e) {
59		/* Allow E2E testing of unsigned phar */
60		$updater = new Updater(null, false);
61		}
62		$app->add(
63		new SelfUpdateCommand(
64		$updater
65		)
66		);
67		}
68
69		return $app;
70		}
71
72		/**
73		* @private
74		*/
75		function get_version(): string
76		{
77		$rawVersion = Versions::getVersion('humbug/php-scoper');
78
79		list($prettyVersion, $commitHash) = explode('@', $rawVersion);
80
81		return (1 === preg_match('/9{7}/', $prettyVersion)) ? $commitHash : $prettyVersion;
82		}
83
84		/**
85		* @private
86		*/
87		function create_scoper(): Scoper
88		{
89		return new PatchScoper(
90		new JsonFileScoper(
91		new InstalledPackagesScoper(
92		new PhpScoper(
93		create_parser(),
94		new NullScoper(),
95		new TraverserFactory()
96		)
97		)
98		)
99		);
100		}
101
102		/**
103		* @private
104		*/
105		function create_parser(): Parser
106		{
107		return (new ParserFactory())->create(ParserFactory::ONLY_PHP7);
108		}
109
110		/**
111		* @param string[] $paths Absolute paths
112		*
113		* @return string
114		*/
115		function get_common_path(array $paths): string
116		{
117		if (0 === count($paths)) {
118		return '';
119		}
120
121		$lastOffset = 1;
122		$common = DIRECTORY_SEPARATOR;
123
124		while (false !== ($index = strpos($paths[0], DIRECTORY_SEPARATOR, $lastOffset))) {
125		$dirLen = $index - $lastOffset + 1;
126		$dir = substr($paths[0], $lastOffset, $dirLen);
127
128		foreach ($paths as $path) {
129		if (substr($path, $lastOffset, $dirLen) !== $dir) {
130	View Code Duplication	if (0 < strlen($common) && DIRECTORY_SEPARATOR === $common[strlen($common) - 1]) {
131		$common = substr($common, 0, strlen($common) - 1);
132		}
133
134		return $common;
135		}
136		}
137
138		$common .= $dir;
139		$lastOffset = $index + 1;
140		}
141
142		$common = substr($common, 0, -1);
143
144	View Code Duplication	if (0 < strlen($common) && DIRECTORY_SEPARATOR === $common[strlen($common) - 1]) {
145		$common = substr($common, 0, strlen($common) - 1);
146		}
147
148		return $common;
149		}
150
151		/**
152		* In-house clone functions. Does a partial clone that should be enough to provide the immutability required in some
153		* places for the scoper. It however does not guarantee a deep cloning as would be horribly slow for no good reasons.
154		* A better alternative would be to find a way to push immutability upstream in PHP-Parser directly.
155		*
156		* @param Node $node
157		*
158		* @return Node
159		*/
160		function clone_node(Node $node): Node
161		{
162		$clone = deep_clone($node);
163
164		foreach ($node->getAttributes() as $key => $attribute) {
165		$clone->setAttribute($key, $attribute);
166		}
167
168		return $clone;
169		}
170
171		/**
172		* @param mixed $node
173		*
174		* @return mixed
175		*
176		* @internal
177		*/
178		function deep_clone($node)
179		{
180		if (is_array($node)) {
181		return array_map(__FUNCTION__, $node);
182		}
183
184		if (null === $node \|\| is_scalar($node)) {
185		return $node;
186		}
187
188		return unserialize(serialize($node));
189		}
190
191		function iterables_to_iterator(iterable ...$iterables): Iterator
192		{
193		$iterator = new AppendIterator();
194
195		foreach ($iterables as $iterable) {
196		if (is_array($iterable)) {
197		$iterator->append(new ArrayIterator($iterable));
198		} elseif ($iterable instanceof IteratorAggregate) {
199		$iterator->append($iterable->getIterator());
200		} else {
201		/* @var Iterator $iterable */
202		$iterator->append($iterable);
203		}
204		}
205
206		return $iterator;
207		}
208

humbug / php-scoper

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functions.php ➔ iterables_to_iterator() A

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