Verantwortungsvoller Umgang mit Software-Paketen

Transcript

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   Verantwortungsvoller Umgang mit So ware-Paketen Ma hias Pigulla – webfactory.de

   SymfonyLive, 4. Mai 2018
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   webfactory.de/uncle- bob-papers

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   Release/Reuse Equivalency Principle (REP) The granule of reuse is the

   granule of release. Only components that are released through a tracking system can effectively be reused. This granule is the package. — Robert C. Martin
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   Release macht Code zum Produkt

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   Zeitliche Entkopplung

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   Schni stelle, nicht Implementierung

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   X.Y.Z 1.2.0, 2.17.47, ... semver.org

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   ! . " .

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   @trigger_error( 'Raider heißt jetzt Twix', E_USER_DEPRECATED );

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    Schni stelle?

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    Transitive Abhängigkeiten

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    $client = $this->fetchAcmeApiClient(); try { $client->addToCart(...); } catch (\GuzzleHttp\Exception\GuzzleException $e)

    { ... }
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    Strategisches Paketdesign

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    Common Reuse Principle (CRP) The classes in a package are

    reused together. If you reuse one of the classes in a package, you reuse them all. — Robert C. Martin
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    None
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    Common Closure Principle (CCP) The classes in a package should

    be closed together against the same kinds of changes. A change that affects a package affects all classes in that package. — Robert C. Martin
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    None
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    Acyclic Dependencies Principle (ADP) The dependency structure between packages must

    be a directed acyclic graph (DAG). That is, there must be no cycles in the dependency structure. — Robert C. Martin
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    None
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    Tools!

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    clue/graph-composer github.com/clue/graph-composer

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    maglnet/ComposerRequireChecker github.com/maglnet/ComposerRequireChecker

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    webfactory/baton github.com/webfactory/baton baton.test.webfactory.de

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    ! "

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    None