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The #[Dependency] Attribute

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This project supplies a Composer plugin that adds a command (why-block) that interprets a PHP #[Dependency] attribute.

How to use the #[Dependency] annotation

Simply include a #[Dependency] attribute on any attributable target in the following format:

#[Navarr\Attribute\Dependency('package', 'versionConstraint', 'reason')]

This FQN may be imported, in which case you can simply use #[Dependency(...)]

All fields except the explanation are mandatory. Adding an explanation is highly recommended, however.

How to process reasons not to upgrade a composer dependency

If you are using the #[Dependency] annotation thoroughly, and you are having issues updating a composer dependency, you can use the command composer why-block composer-package version

This will output a list of files containing a #[Dependency] annotation on composer-package with a version-constraint that cannot be fulfilled by the specified version.

How to install

composer global require navarr/dependency-annotation

Compatibility with v1

For speed, version 2 automatically excludes the legacy @dependency annotation in favor of the PHP8 #[Dependency] attribute. While transitioning, you may specify the -l or --include-legacy-annotations flag to the why-block command to force it to process v1 annotations as well.