This utility provides quick and easy access to version information of composer dependencies.
This information is derived from the composer.lock
file which is (re)generated during composer install
or composer update
.
$version = \PackageVersions\Versions::getVersion('ocramius/package-versions');
var_dump($version); // 1.0.0@0beec7b5ea3f0fdbc95d0dd47f3c5bc275da8a33
composer require ocramius/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:
Therefore you should use optimize-autoloader: true
in your composer.json:
...
"config": {
"optimize-autoloader": true
},
...
see https://getcomposer.org/doc/06-config.md#optimize-autoloader
In case you manually generate your autoloader via the CLI use the --optimize
flag:
composer dump-autoload --optimize
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.
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.
Professionally supported ocramius/package-versions
is available through Tidelift.
You can also contact the maintainer at ocramius@gmail.com for looking into issues related to this package in your private projects.