Prefetcher - Code Metrics - hirak/prestissimo - Measure and Improve Code Quality continuously with Scrutinizer

Prefetcher A
last analyzed 2020-10-28 15:58 UTC

↳ Parent: Project

Complexity

Total Complexity

Size/Duplication

Total Lines	96
Duplicated Lines	0 %

Coupling/Cohesion

Components	0
Dependencies	7

Test Coverage

Coverage

86.79%

Importance

Changes

Metric	Value
wmc	17
lcom	0
cbo	7
dl	0
loc	96
ccs	46
cts	53
cp	0.8679
rs	10
c	0
b	0
f	0

3 Methods

Rating	Name	Size	Complexity
B	fetchAllFromOperations()	38	8
A	getUrlFromPackage()	14	4
A	fetchAll()	30	5

<?php
/*
 * hirak/prestissimo
 * @author Hiraku NAKANO
 * @license MIT https://github.com/hirak/prestissimo
 */
namespace Hirak\Prestissimo;

use Composer\IO;
use Composer\Config;
use Composer\Package;
use Composer\DependencyResolver\Operation;

class Prefetcher
{
    /**
     * @param IO\IOInterface $io
     * @param CopyRequest[] $requests
     */
    public function fetchAll(IO\IOInterface $io, array $requests)
    {
        $successCnt = $failureCnt = 0;
        $totalCnt = count($requests);

        $multi = new CurlMulti;
        $multi->setRequests($requests);
        try {
            do {
                $multi->setupEventLoop();
                $multi->wait();

                $result = $multi->getFinishedResults();
                $successCnt += $result['successCnt'];
                $failureCnt += $result['failureCnt'];
                foreach ($result['urls'] as $url) {
                    if (isset($result['errors'][$url])) {
                        $io->writeError("    <warning>{$result['errors'][$url]}</warning>:\t$url", true, IO\IOInterface::NORMAL);
                    } else {
                        $io->writeError("    <comment>$successCnt/$totalCnt</comment>:\t$url", true, IO\IOInterface::NORMAL);
                    }
                }
            } while ($multi->remain());
        } catch (FetchException $e) {
            // do nothing
        }

        $skippedCnt = $totalCnt - $successCnt - $failureCnt;
        $io->writeError("    Finished: <comment>success: $successCnt, skipped: $skippedCnt, failure: $failureCnt, total: $totalCnt</comment>", true, IO\IOInterface::NORMAL);
    }

    /**
     * @param IO\IOInterface $io
     * @param Config $config
     * @param Operation\OperationInterface[] $ops
     */
    public function fetchAllFromOperations(IO\IOInterface $io, Config $config, array $ops)
    {
        $cachedir = rtrim($config->get('cache-files-dir'), '\/');
        $requests = array();
        foreach ($ops as $op) {
            switch ($op->getJobType()) {
                case 'install':
                    $p = $op->getPackage();
interface User
{
    /** @return string */
    public function getPassword();
}

class MyUser implements User
{
    public function getPassword()
    {
        // return something
    }

    public function getDisplayName()
    {
        // return some name.
    }
}

class AuthSystem
{
    public function authenticate(User $user)
    {
        $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName()));
        // do something.
    }
}
                    break;
                case 'update':
                    $p = $op->getTargetPackage();
interface User
{
    /** @return string */
    public function getPassword();
}

class MyUser implements User
{
    public function getPassword()
    {
        // return something
    }

    public function getDisplayName()
    {
        // return some name.
    }
}

class AuthSystem
{
    public function authenticate(User $user)
    {
        $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName()));
        // do something.
    }
}
                    break;
                default:
                    continue 2;
            }

            $url = $this->getUrlFromPackage($p);
            if (!$url) {
                continue;
            }

            $destination = $cachedir . DIRECTORY_SEPARATOR . FileDownloaderDummy::getCacheKeyCompat($p, $url);
            if (file_exists($destination)) {
                continue;
            }
            $useRedirector = (bool)preg_match('%^(?:https|git)://github\.com%', $p->getSourceUrl());
            try {
                $request = new CopyRequest($url, $destination, $useRedirector, $io, $config);
                $requests[] = $request;
            } catch (FetchException $e) {
                // do nothing
            }
        }

        if (count($requests) > 0) {
            $this->fetchAll($io, $requests);
        }
    }

    private static function getUrlFromPackage(Package\PackageInterface $package)
    {
        $url = $package->getDistUrl();
        if (!$url) {
            return false;
        }
        if ($package->getDistMirrors()) {
            $url = current($package->getDistUrls());
        }
        if (!parse_url($url, PHP_URL_HOST)) {
            return false;
        }
        return $url;
    }
}


Prefetcher A
last analyzed 2020-10-28 15:58 UTC

Complexity

Size/Duplication

Coupling/Cohesion

Test Coverage

Importance

3 Methods

Available Fixes

Available Fixes

1		<?php
2		/*
3		* hirak/prestissimo
4		* @author Hiraku NAKANO
5		* @license MIT https://github.com/hirak/prestissimo
6		*/
7		namespace Hirak\Prestissimo;
8
9		use Composer\IO;
10		use Composer\Config;
11		use Composer\Package;
12		use Composer\DependencyResolver\Operation;
13
14		class Prefetcher
15		{
16		/**
17		* @param IO\IOInterface $io
18		* @param CopyRequest[] $requests
19		*/
20	2	public function fetchAll(IO\IOInterface $io, array $requests)
21		{
22	2	$successCnt = $failureCnt = 0;
23	2	$totalCnt = count($requests);
24
25	2	$multi = new CurlMulti;
26	2	$multi->setRequests($requests);
27		try {
28		do {
29	2	$multi->setupEventLoop();
30	2	$multi->wait();
31
32	2	$result = $multi->getFinishedResults();
33	2	$successCnt += $result['successCnt'];
34	2	$failureCnt += $result['failureCnt'];
35	2	foreach ($result['urls'] as $url) {
36	2	if (isset($result['errors'][$url])) {
37	1	$io->writeError(" <warning>{$result['errors'][$url]}</warning>:\t$url", true, IO\IOInterface::NORMAL);
38		} else {
39	1	$io->writeError(" <comment>$successCnt/$totalCnt</comment>:\t$url", true, IO\IOInterface::NORMAL);
40		}
41		}
42	2	} while ($multi->remain());
43		} catch (FetchException $e) {
44		// do nothing
45		}
46
47	2	$skippedCnt = $totalCnt - $successCnt - $failureCnt;
48	2	$io->writeError(" Finished: <comment>success: $successCnt, skipped: $skippedCnt, failure: $failureCnt, total: $totalCnt</comment>", true, IO\IOInterface::NORMAL);
49	2	}
50
51		/**
52		* @param IO\IOInterface $io
53		* @param Config $config
54		* @param Operation\OperationInterface[] $ops
55		*/
56	4	public function fetchAllFromOperations(IO\IOInterface $io, Config $config, array $ops)
57		{
58	4	$cachedir = rtrim($config->get('cache-files-dir'), '\/');
59	4	$requests = array();
60	4	foreach ($ops as $op) {
61	4	switch ($op->getJobType()) {
62	4	case 'install':
63	3	$p = $op->getPackage();
		0 ignored issues – show Bug introduced 2016-05-21 00:20 UTC by Report Bug Copy Issue Report It seems like you code against a concrete implementation and not the interface `Composer\DependencyResol...tion\OperationInterface` as the method `getPackage()` does only exist in the following implementations of said interface: `Composer\DependencyResol...ration\InstallOperation`, `Composer\DependencyResol...AliasInstalledOperation`, `Composer\DependencyResol...iasUninstalledOperation`, `Composer\DependencyResol...tion\UninstallOperation`. Let’s take a look at an example: interface User { /** @return string / public function getPassword(); } class MyUser implements User { public function getPassword() { // return something } public function getDisplayName() { // return some name. } } class AuthSystem { public function authenticate(User $user) { $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName())); // do something. } } In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different implementation of User which does not have a getDisplayName() method, the code will break. Available Fixes Change the type-hint for the parameter: class AuthSystem { public function authenticate(MyUser $user) { / ... / } } Add an additional type-check: class AuthSystem { public function authenticate(User $user) { if ($user instanceof MyUser) { $this->logger->info(/* ... /); } // or alternatively if ( ! $user instanceof MyUser) { throw new \LogicException( '$user must be an instance of MyUser, ' .'other instances are not supported.' ); } } } Note:* PHP Analyzer uses reverse abstract interpretation to narrow down the types inside the if block in such a case. Add the method to the interface: interface User { /** @return string / public function getPassword(); /* @return string */ public function getDisplayName(); } Loading history...
64	3	break;
65	2	case 'update':
66	1	$p = $op->getTargetPackage();
		0 ignored issues – show Bug introduced 2016-05-21 00:20 UTC by Report Bug Copy Issue Report It seems like you code against a concrete implementation and not the interface `Composer\DependencyResol...tion\OperationInterface` as the method `getTargetPackage()` does only exist in the following implementations of said interface: `Composer\DependencyResol...eration\UpdateOperation`. Let’s take a look at an example: interface User { /** @return string / public function getPassword(); } class MyUser implements User { public function getPassword() { // return something } public function getDisplayName() { // return some name. } } class AuthSystem { public function authenticate(User $user) { $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName())); // do something. } } In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different implementation of User which does not have a getDisplayName() method, the code will break. Available Fixes Change the type-hint for the parameter: class AuthSystem { public function authenticate(MyUser $user) { / ... / } } Add an additional type-check: class AuthSystem { public function authenticate(User $user) { if ($user instanceof MyUser) { $this->logger->info(/* ... /); } // or alternatively if ( ! $user instanceof MyUser) { throw new \LogicException( '$user must be an instance of MyUser, ' .'other instances are not supported.' ); } } } Note:* PHP Analyzer uses reverse abstract interpretation to narrow down the types inside the if block in such a case. Add the method to the interface: interface User { /** @return string / public function getPassword(); /* @return string */ public function getDisplayName(); } Loading history...
67	1	break;
68		default:
69	1	continue 2;
70		}
71
72	3	$url = $this->getUrlFromPackage($p);
73	3	if (!$url) {
74	2	continue;
75		}
76
77	1	$destination = $cachedir . DIRECTORY_SEPARATOR . FileDownloaderDummy::getCacheKeyCompat($p, $url);
78	1	if (file_exists($destination)) {
79	1	continue;
80		}
81		$useRedirector = (bool)preg_match('%^(?:https\|git)://github\.com%', $p->getSourceUrl());
82		try {
83		$request = new CopyRequest($url, $destination, $useRedirector, $io, $config);
84		$requests[] = $request;
85		} catch (FetchException $e) {
86		// do nothing
87		}
88		}
89
90	4	if (count($requests) > 0) {
91		$this->fetchAll($io, $requests);
92		}
93	4	}
94
95	3	private static function getUrlFromPackage(Package\PackageInterface $package)
96		{
97	3	$url = $package->getDistUrl();
98	3	if (!$url) {
99	1	return false;
100		}
101	2	if ($package->getDistMirrors()) {
102		$url = current($package->getDistUrls());
103		}
104	2	if (!parse_url($url, PHP_URL_HOST)) {
105	1	return false;
106		}
107	1	return $url;
108		}
109		}
110

hirak / prestissimo

Prefetcher A last analyzed 2020-10-28 15:58 UTC

Complexity

Size/Duplication

Coupling/Cohesion

Test Coverage

Importance

3 Methods

Available Fixes

Available Fixes

Duplication Side-by-Side

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Prefetcher A
last analyzed 2020-10-28 15:58 UTC