[PROPOSAL] New laminas-servicemanager-inspector package

[zakirullin]

Preface

It's no doubt that static analysis comes in handy in a variety of use cases nowadays.

Both ReflectionBasedAbstractFactory & AutowireFactory are quite well-demanded, even though its overall configuration is quite error prone, especially if one doesn't favour the AoT.

Problem

There are a few runtime defects possible now:

• Circular dependency
• Cyclic alias
• Missing factory
• Factory autoload failure
• Unresolvable service/scalar
• Scalar type/name mismatch
• Many other scenarios of misconfiguration

Solution

Hereby I'm offering a new package, which is capable of addressing all the issues specified above statically.
Basically it's just a tool that uses $config['dependencies'] to tell us whether it's all good or not (with certain degree of confidence). It will also scan AST for all ContainerInterface::get() calls, to see whether all of them can be satisfied.

WIP

Scope of use

It would benefit current end-users of laminas-servicemanager, no matter if used with laminas-di/AoT or not.
Suitable for both laminas/mezzio-based applications.

As @Xerkus and @tux-rampage suggested it can be used by servicemanager as a dev dependency.

Maintaining

I'll be able to maintain the package once it's approved.

[zakirullin]

@Xerkus suggested to write a psalm plugin, and it's actually a better way to go.
We'll lose some flexibility as well as dependency-tree rendering (that we can easily sacrifice), for the sake of better maintainability.

We're back to a separate laminas/cli based command.

[weierophinney]

TSC has voted to accept this as of 2021-03-01!