muglug/package-versions-56

A backport of ocramius/package-versions that supports php ^5.6. Composer plugin that provides efficient querying for installed package versions (no runtime IO)

Package Versions

This is a backport of ocramius/package-versions that support php 5.6, while ocramius/package-versions only support php 7+., _(*1)

It's a more recent version of samsonasik/package-versions, _(*2)

This utility provides quick and easy access to version information of composer dependencies., _(*3)

This information is derived from the composer.lock file which is (re)generated during composer install or composer update., _(*4)

$version = \PackageVersions\Versions::getVersion('muglug/package-versions');
var_dump($version); // 1.0.0@0beec7b5ea3f0fdbc95d0dd47f3c5bc275da8a33

$version = \PackageVersions\Versions::getShortVersion('muglug/package-versions');
var_dump($version); // 1.0.0

$version = \PackageVersions\Versions::getMajorVersion('muglug/package-versions');
var_dump($version); // 1

, _(*5)

Installation

composer require muglug/package-versions

It is suggested that you use a optimized composer autoloader in order to prevent autoload I/O when accessing the PackageVersions\Versions API:, _(*6)

Therefore you should use optimize-autoloader: true in your composer.json:, _(*7)

...
    "config": {
        "optimize-autoloader": true
    },
...

see https://getcomposer.org/doc/06-config.md#optimize-autoloader, _(*8)

In case you manually generate your autoloader via the CLI use the --optimize flag:, _(*9)

composer dump-autoload --optimize

Use-cases

This repository implements PackageVersions\Versions::getVersion() in such a way that no IO happens when calling it, because the list of package versions is compiled during composer installation., _(*10)

This is especially useful when you want to generate assets/code/artifacts that are computed from the current version of a certain dependency. Doing so at runtime by checking the installed version of a package would be too expensive, and this package mitigates that., _(*11)