Implement post tasks on project targets

[rpanadero]

• I'd be willing to implement this feature (contributing guide)

Description

I would like to see Nx support post- tasks on project targets. Other tools like npm do implement this feature.

Motivation

It is very usual to need to run a task after running a target, for example after running build target. Maybe not everyone needs this, but it would be really helpful to have it.

For example, I'm working on an Angular project right now where I need to instrument all generated js files after building for production by running a command. Now, to do it, I would need to add an additional target like "build-full", and rename all references of "build" target to the new "build-full"... Or another approach would be to implement a custom builder for my angular app and give it the ability to run a target after building. Both of them are really tedious, from my point of view. Also, please, consider that other tools like NPM do implement this feature (https://docs.npmjs.com/cli/v10/using-npm/scripts#pre--post-scripts). "DependsOn" works well for pre tasks, but we need something similar for post tasks.

I have seen that this feature request was also requested in the past and discarded, but I would appreciate you check it out again. Le me reference a past requests which was closed by inactivity:

#9054

Suggested Implementation

"build": {
  "executor": "@angular-devkit/build-angular:browser",
  "postTargets": ["postbuild", ...],
  "options": {
     ...
   }
},
"postbuild": {
  "executor": "@nrwl/workspace:run-commands",
  "options": {
      "commands": ["echo 'TEST'"],
   }
}

postTargets syntax would be equal to dependsOn.

Alternate Implementations

"build": {
  "executor": "@angular-devkit/build-angular:browser",
  "options": {
     postTargets: ["myapp:postbuild", ...]
   }
},
"postbuild": {
  "executor": "@nrwl/workspace:run-commands",
  "options": {
      "commands": ["echo 'TEST'"],
   }
}

This approach would allow us to have different post targets by configuration. "PostTargets" option would be like a reserved option for an executor.

[AhsanAyaz]

Would love to see this being added 👍🏽

[jahusa02]

I have actually the same usecase. Need to upload sourcemaps to sentry and the esbuild plugin doesnt work with NX/Angular.

[rpanadero]

This feature request seems to have quite support from the community, could you have a look at it?