Swiss Knife for Upgrades

Swiss knife in pocket of every upgrade architect!

Install

composer require rector/swiss-knife --dev

Usage

1. Check your Code for Git Merge Conflicts

Do you use Git? Then merge conflicts is not what you want in your code ever to see in pushed code:

<<<<<<< HEAD

Add this command to CI to spot these:

vendor/bin/swiss-knife check-conflicts .

Note: The /vendor directory is excluded by default.

2. Detect Commented Code

Have you ever forgot commented code in your code?

//      foreach ($matches as $match) {
//           $content = str_replace($match[0], $match[2], $content);
//      }

No more! Add this command to CI to spot these:

vendor/bin/swiss-knife check-commented-code <directory>
vendor/bin/swiss-knife check-commented-code packages --line-limit 5

3. Reach full PSR-4

Find multiple classes in single file

To make PSR-4 work properly, each class must be in its own file. This command makes it easy to spot multiple classes in single file:

vendor/bin/swiss-knife find-multi-classes src

Update Namespace to match PSR-4 Root

Is your class in wrong namespace? Make it match your PSR-4 root:

vendor/bin/swiss-knife namespace-to-psr-4 src --namespace-root "App\\"

This will update all files in your /src directory, to starts with App\\ and follow full PSR-4 path:

 # file path: src/Repository/TalkRepository.php

-namespace Model;
+namespace App\Repository;

 ...

4. Finalize classes without children

Do you want to finalize all classes that don't have children?

vendor/bin/swiss-knife finalize-classes src tests

Do you use mocks but not bypass final yet?

vendor/bin/swiss-knife finalize-classes src tests --skip-mocked

This will keep mocked classes non-final, so PHPUnit can extend them internally.

Do you want to skip file or two?

vendor/bin/swiss-knife finalize-classes src tests --skip-file src/SpecialProxy.php

5. Privatize local class constants

PHPStan can report unused private class constants, but it skips all the public ones. Do you have lots of class constants, all of them public but want to narrow scope to privates?

vendor/bin/swiss-knife privatize-constants src test

This command will:

• find all class constant usages
• scans classes and constants
• makes those constant used locally private

That way all the constants not used outside will be made private safely.

6. Mock only constructor param you need with MockWire

Imagine there is a service that has 6 dependencies in __construct():

final class RealClass
{
    public function __construct(
        private readonly FirstService $firstService,
        private readonly SecondService $secondService,
        private readonly ThirdService $thirdService,
        private readonly FourthService $fourthService,
        private readonly FifthService $fifthService,
        private readonly SixthService $sixthService
    ) {
    }
}

But we want to mock only one of them:

use Rector\SwissKnife\Testing\MockWire;

// pass a mock
$thirdDependencyMock = $this->createMock(ThirdDependency::class);
$thirdDependencyMock->method('someMethod')->willReturn('some value');

$realClass = MockWire::create(RealClass::class, [
    $thirdDependencyMock
]);

Or pass direct instance:

$realClass = MockWire::create(RealClass::class, [
    new ThirdDependency()
]);

The rest of argument will be mocked automatically.

This way we:

• can easily change the class constructor, without having burden of changing all the tests.
• see what is really being used in the constructor
• avoid any mock-mess clutter properties all over our test

7. Find unused Behat definitions with static analysis - Behastan

Behat uses @When(), @Then() and @Given() annotations and their PHP 8 attribute alternatives to define method to be called in *.feature files. Sometimes test change and lines from *.feature files are deleted. But what about definitions?

This command helps you to spot definitions that are no longer needed. Just provide test directory (1 or more) and let it statically compare defined and used masks:

vendor/bin/swiss-knife behastan tests

↓

Checking static, named and regex masks from 100 *Feature files
==============================================================

Found 1036 masks:

 * 747 exact
 * 106 /regex/
 * 181 :named

 1036/1036 [▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓] 100%

the product price is :value
tests/Behat/ProductContext.php

/^I submit order form and see payment page$/
tests/Behat/OrderContext.php


 [ERROR] Found 2 unused definitions

You can also add this command to CI, to get instant feedback about unused definitions.

8. Quick search PHP files with regex

Data beats guess. Do you need a quick idea how many files contain $this->get('...') calls? Or another anti-pattern you want to remove?

PhpStorm helps with similar search, but stops counting at 100+. To get exact data about your codebase, use this command:

vendor/bin/swiss-knife search-regex "#this->get\((.*)\)#"

↓

Going through 1053 *.php files
Searching for regex: #this->get\((.*)\)#

 1053/1053 [▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓] 100%

 * src/Controller/ProjectController.php: 15
 * src/Controller/OrderController.php: 5


 [OK] Found 20 cases in 2 files

Happy coding!