[BUG] preshrinkwrap, shrinkwrap and postshrinkwrap scripts are not executed

[LeSuisse]

Current Behavior:

With a package.json looking like that, preshrinkwrap, shrinkwrap and postshrinkwrap scripts are not executed when running npm install:

{
  "name": "mypackage",
  "version": "1.0.0",
  "dependencies": {
    "somedep": "^1.0.0"
  },
  "devDependencies": {},
  "scripts": {
    "preshrinkwrap": "mypreshrinkwrapscript",
    "shrinkwrap": "myshrinkwrapscript",
    "postshrinkwrap": "mypostshrinkwrapscript"
  }
}

Expected Behavior:

preshrinkwrap, shrinkwrap and postshrinkwrap scripts to be executed when running npm install as described in the documentation https://docs.npmjs.com/cli/v7/configuring-npm/package-locks

Note that this behavior works on npm 6.x.

Environment:

Node: 15.6.0
npm: 7.4.0

[wraithgar]

Those events went away in npm7 because there is no specific shrinkwrap event anymore. The cli command either renames the package-lock, or generates it and saves it with the shrinkwrap name.

[dgreif]

@wraithgar Is there any new hook available to detect general changes to package-lock, regardless of how they happen (install, uninstall, update, etc)? We used to use postshrinkwrap to kick off our license check, but have to do this in a custom npm script with npm@8.

[wraithgar]

No, but we know there is a need for it. It's currently an item in our backlog.