[FEATURE] depadded script hook

[benallfree]

What / Why

I would like the ability to run scripts before and after dependencies are added. The install hook runs after the package is installed as a dependency, but we have no hooks for when a dependency is added/removed from a package.

I'm proposing a depadded hook to run after a package dependency is installed using npm i <package>.

When

When npm i <package> is finished executing

Where

As a final step, it will look for a depadded script in the project package.json and run it if present.

How

"scripts": {
   "depadded": "echo 'A dependency was added.'"
}

Current Behavior

There is no way to hook into a dependency added event.

Expected Behavior

• n/a

Who

• n/a

References

Inspired while trying to find a workaround for npm install breaking npm link. I created a package to help track and restore links, but there is no way to automatically run it after npm install <package> executes.

I know this particular issue will be fixed in npm 7, but perhaps there is some general utility to this feature anyway. I am happy to work on it and submit a PR.

[darcyclarke]

npm v6 is no longer in active development; We will continue to push security releases to v6 at our team's discretion as-per our Support Policy.

If your bug is preproducible on v7, please re-file this issue using our new issue template.

If your issue was a feature request, please consider opening a new RRFC or RFC. If your issue was a question or other idea that was not CLI-specific, consider opening a discussion on our feedback repo

Closing: This is an automated message.

[darcyclarke]

npm v6 is no longer in active development; We will continue to push security releases to v6 at our team's discretion as-per our Support Policy.

If your bug is preproducible on v7, please re-file this issue using our new issue template.

If your issue was a feature request, please consider opening a new RRFC or RFC. If your issue was a question or other idea that was not CLI-specific, consider opening a discussion on our feedback repo

Closing: This is an automated message.