Installer::getRootPackageAlias() - Code Metrics - Inspection of "Remove autoload re-dump optimization" - Ocramius/PackageVersions - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#15)

by Marco

created 2016-02-26 13:53 UTC

Installer::getRootPackageAlias() A

↳ Parent: Installer

Complexity

Conditions	2
Paths	2

Size

Total Lines	10
Code Lines	5

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	5
CRAP Score	2

Metric	Value
dl	0
loc	10
ccs	5
cts	5
cp	1
rs	9.4285
cc	2
eloc	5
nc	2
nop	1
crap	2

<?php

namespace PackageVersions;

use Composer\Composer;
use Composer\Config;
use Composer\EventDispatcher\EventSubscriberInterface;
use Composer\IO\IOInterface;
use Composer\Package\AliasPackage;
use Composer\Package\Locker;
use Composer\Package\PackageInterface;
use Composer\Package\RootPackageInterface;
use Composer\Plugin\PluginInterface;
use Composer\Script\Event;
use Composer\Script\ScriptEvents;

final class Installer implements PluginInterface, EventSubscriberInterface
{
    private static $generatedClassTemplate = <<<'PHP'
<?php

namespace PackageVersions;

/**
 * This class is generated by ocramius/package-versions, specifically by
 * @see \PackageVersions\Installer
 *
 * This file is overwritten at every run of `composer install` or `composer update`.
 */
final class Versions
{
    const VERSIONS = %s;

    private function __construct()
    {
    }

    /**
     * @throws \OutOfBoundsException if a version cannot be located
     */
    public static function getVersion(string $packageName) : string
    {
        if (! isset(self::VERSIONS[$packageName])) {
            throw new \OutOfBoundsException(
                'Required package "' . $packageName . '" is not installed: cannot detect its version'
            );
        }

        return self::VERSIONS[$packageName];
    }
}

PHP;

    /**
     * {@inheritDoc}
     */
    public function activate(Composer $composer, IOInterface $io)
    {
        $composer->getEventDispatcher()->addSubscriber($this);
    }

    /**
     * {@inheritDoc}
     */
    public static function getSubscribedEvents()
    {
        return [
            ScriptEvents::POST_INSTALL_CMD => 'dumpVersionsClass',
            ScriptEvents::POST_UPDATE_CMD  => 'dumpVersionsClass',
        ];
    }

    /**
     * @param Event $composerEvent
     *
     * @return void
     *
     * @throws \RuntimeException
     */
    public static function dumpVersionsClass(Event $composerEvent)
    {
        $io = $composerEvent->getIO();

        $io->write('<info>ocramius/package-versions:</info>  Generating version class...');

        $composer = $composerEvent->getComposer();

        self::writeVersionClassToFile(
            self::generateVersionsClass($composer),
            $composer->getConfig(),
            $composer->getPackage()
        );

        $io->write('<info>ocramius/package-versions:</info> ...done generating version class');
    }

    private static function generateVersionsClass(Composer $composer) : string
    {
        return sprintf(
            self::$generatedClassTemplate,
            var_export(iterator_to_array(self::getVersions($composer->getLocker(), $composer->getPackage())), true)
        );
    }

    /**
     * @param string               $versionClassSource
     * @param Config               $composerConfig
     * @param RootPackageInterface $rootPackage
     *
     * @return void
     *
     * @throws \RuntimeException
     */
    private static function writeVersionClassToFile(
        string $versionClassSource,
        Config $composerConfig,
        RootPackageInterface $rootPackage
    ) {
        file_put_contents(
            self::locateRootPackageInstallPath($composerConfig, $rootPackage)
            . '/src/PackageVersions/Versions.php',
            $versionClassSource,
            0664
        );
    }

    /**
     * @param Config               $composerConfig
     * @param RootPackageInterface $rootPackage
     *
     * @return string
     *
     * @throws \RuntimeException
     */
    private static function locateRootPackageInstallPath(
        Config $composerConfig,
        RootPackageInterface $rootPackage
    ) : string {

        if ('ocramius/package-versions' === self::getRootPackageAlias($rootPackage)->getName()) {
            return dirname($composerConfig->get('vendor-dir'));
        }

        return $composerConfig->get('vendor-dir') . '/ocramius/package-versions';
    }

    private static function getRootPackageAlias(RootPackageInterface $rootPackage) : PackageInterface
    {
        $package = $rootPackage;

        while ($package instanceof AliasPackage) {
            $package = $package->getAliasOf();
        }

        return $package;
    }

    /**
     * @param Locker               $locker
     * @param RootPackageInterface $rootPackage
     *
     * @return \Generator|\string[]
     */
    private static function getVersions(Locker $locker, RootPackageInterface $rootPackage) : \Generator
    {
        $lockData = $locker->getLockData();

        $lockData['packages-dev'] = $lockData['packages-dev'] ?? [];

        foreach (array_merge($lockData['packages'], $lockData['packages-dev'])  as $package) {

            yield $package['name'] => $package['version'] . '@' . (
                $package['source']['reference']?? $package['dist']['reference'] ?? ''
            );
        }

        yield $rootPackage->getName() => $rootPackage->getVersion() . '@' . $rootPackage->getSourceReference();
    }
}

1		<?php
2
3		namespace PackageVersions;
4
5		use Composer\Composer;
6		use Composer\Config;
7		use Composer\EventDispatcher\EventSubscriberInterface;
8		use Composer\IO\IOInterface;
9		use Composer\Package\AliasPackage;
10		use Composer\Package\Locker;
11		use Composer\Package\PackageInterface;
12		use Composer\Package\RootPackageInterface;
13		use Composer\Plugin\PluginInterface;
14		use Composer\Script\Event;
15		use Composer\Script\ScriptEvents;
16
17		final class Installer implements PluginInterface, EventSubscriberInterface
18		{
19		private static $generatedClassTemplate = <<<'PHP'
20		<?php
21
22		namespace PackageVersions;
23
24		/**
25		* This class is generated by ocramius/package-versions, specifically by
26		* @see \PackageVersions\Installer
27		*
28		* This file is overwritten at every run of `composer install` or `composer update`.
29		*/
30		final class Versions
31		{
32		const VERSIONS = %s;
33
34		private function __construct()
35		{
36		}
37
38		/**
39		* @throws \OutOfBoundsException if a version cannot be located
40		*/
41		public static function getVersion(string $packageName) : string
42		{
43		if (! isset(self::VERSIONS[$packageName])) {
44		throw new \OutOfBoundsException(
45		'Required package "' . $packageName . '" is not installed: cannot detect its version'
46		);
47		}
48
49		return self::VERSIONS[$packageName];
50		}
51		}
52
53		PHP;
54
55		/**
56		* {@inheritDoc}
57		*/
58	1	public function activate(Composer $composer, IOInterface $io)
59		{
60	1	$composer->getEventDispatcher()->addSubscriber($this);
61	1	}
62
63		/**
64		* {@inheritDoc}
65		*/
66	1	public static function getSubscribedEvents()
67		{
68		return [
69	1	ScriptEvents::POST_INSTALL_CMD => 'dumpVersionsClass',
70	1	ScriptEvents::POST_UPDATE_CMD => 'dumpVersionsClass',
71		];
72		}
73
74		/**
75		* @param Event $composerEvent
76		*
77		* @return void
78		*
79		* @throws \RuntimeException
80		*/
81	9	public static function dumpVersionsClass(Event $composerEvent)
82		{
83	9	$io = $composerEvent->getIO();
84
85	9	$io->write('<info>ocramius/package-versions:</info> Generating version class...');
86
87	9	$composer = $composerEvent->getComposer();
88
89	9	self::writeVersionClassToFile(
90	9	self::generateVersionsClass($composer),
91	9	$composer->getConfig(),
92	9	$composer->getPackage()
93		);
94
95	9	$io->write('<info>ocramius/package-versions:</info> ...done generating version class');
96	9	}
97
98	9	private static function generateVersionsClass(Composer $composer) : string
99		{
100	9	return sprintf(
101	9	self::$generatedClassTemplate,
102	9	var_export(iterator_to_array(self::getVersions($composer->getLocker(), $composer->getPackage())), true)
103		);
104		}
105
106		/**
107		* @param string $versionClassSource
108		* @param Config $composerConfig
109		* @param RootPackageInterface $rootPackage
110		*
111		* @return void
112		*
113		* @throws \RuntimeException
114		*/
115	9	private static function writeVersionClassToFile(
116		string $versionClassSource,
117		Config $composerConfig,
118		RootPackageInterface $rootPackage
119		) {
120	9	file_put_contents(
121	9	self::locateRootPackageInstallPath($composerConfig, $rootPackage)
122	9	. '/src/PackageVersions/Versions.php',
123		$versionClassSource,
124	9	0664
125		);
126	9	}
127
128		/**
129		* @param Config $composerConfig
130		* @param RootPackageInterface $rootPackage
131		*
132		* @return string
133		*
134		* @throws \RuntimeException
135		*/
136	9	private static function locateRootPackageInstallPath(
137		Config $composerConfig,
138		RootPackageInterface $rootPackage
139		) : string {
		0 ignored issues – show Coding Style introduced 2016-02-02 17:30 UTC by Report Bug Copy Issue Report There must be a single space between the closing parenthesis and the opening brace of a multi-line function declaration Loading history...
140	9	if ('ocramius/package-versions' === self::getRootPackageAlias($rootPackage)->getName()) {
141	3	return dirname($composerConfig->get('vendor-dir'));
142		}
143
144	6	return $composerConfig->get('vendor-dir') . '/ocramius/package-versions';
145		}
146
147	9	private static function getRootPackageAlias(RootPackageInterface $rootPackage) : PackageInterface
148		{
149	9	$package = $rootPackage;
150
151	9	while ($package instanceof AliasPackage) {
152	4	$package = $package->getAliasOf();
153		}
154
155	9	return $package;
156		}
157
158		/**
159		* @param Locker $locker
160		* @param RootPackageInterface $rootPackage
161		*
162		* @return \Generator\|\string[]
163		*/
164	9	private static function getVersions(Locker $locker, RootPackageInterface $rootPackage) : \Generator
165		{
166	9	$lockData = $locker->getLockData();
167
168	9	$lockData['packages-dev'] = $lockData['packages-dev'] ?? [];
169
170	9	foreach (array_merge($lockData['packages'], $lockData['packages-dev']) as $package) {
		0 ignored issues – show Coding Style introduced 2016-01-25 23:23 UTC by Report Bug Copy Issue Report Expected 1 space before "as"; 2 found Loading history...
171	3	yield $package['name'] => $package['version'] . '@' . (
172	3	$package['source']['reference']?? $package['dist']['reference'] ?? ''
173		);
174		}
175
176	9	yield $rootPackage->getName() => $rootPackage->getVersion() . '@' . $rootPackage->getSourceReference();
177		}
178		}

Ocramius / PackageVersions

Pull Request — master (#15)

Installer::getRootPackageAlias() A

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