NX commands interceptor/middleware

[Bielik20]

Description

It would be amazing if you could introduce workspace wide interceptor for all commands run.

In workspace.json we would add field

{
  "interceptors": ["./tools/interceptors/print-args"]
}

Then print-args file would be something like:

export default async function printArgs(input: Input, next: (input: Input) => Promise<Output>): Promise<Output> {
  console.log(input);
  const output = await next(input);
  console.log(output);
  return output;
}

Input would be Options, plus builder/executor/generator/schematic identificator (should also say if it is builder, executor, generator or schematic).

Output would probably be { success: boolean }.

Calling next invokes next interceptor or actual builder/executor/generator/schematic if there are none left. It would be very similar to Angular's HttpInterceptor but for all NX commands.

Motivation

Ability to modify parameters and output of various commands would be very useful to make workspace more suited for individual teams. Our use case is that we have parameter alias which we use to setup different environments on AWS, frontend builders etc. This parameter needs to be of a specific format, no longer than 10 character, only alpha numeric values etc. Right now, for each builder we use I have to write elaborate modification that parses this param if needed. It would be great to have one alias-interceptor which would listen for that param and modify it if needed for every builder/executor.

Suggested Implementation

I haven't worked on that yet, I would like to hear your opinion first.

Alternate Implementations

Same.

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[Bielik20]

I know it may not be the smallest or simplest change, but I think it deserves conversation. It would add a lot of personalisation capabilities to the workspace. In the future even stuff like dotnet could be moved to such an interceptor allowing executors to be free of that.

[github-actions]

This issue has been automatically marked as stale because it hasn't had any recent activity. It will be closed in 14 days if no further activity occurs.
If we missed this issue please reply to keep it active.
Thanks for being a part of the Nx community! 🙏

[Bielik20]

Keep alive.

[github-actions]

This issue has been automatically marked as stale because it hasn't had any recent activity. It will be closed in 14 days if no further activity occurs.
If we missed this issue please reply to keep it active.
Thanks for being a part of the Nx community! 🙏

[github-actions]

This issue has been closed for more than 30 days. If this issue is still occuring, please open a new issue with more recent context.