For background, see npm#10074.
Detect if we were run as a result of npm publish. This is intended to allow you to
easily have prepublish lifecycle scripts that don't run when you run npm install.
$ npm install --save-dev in-publish
[email protected] node_modules/in-publish
Then edit your package.json to have:
"scripts": {
"prepublish": "in-publish && thing-I-dont-want-on-dev-install || not-in-publish"
}Now when you run:
$ npm install
Then thing-I-dont-want-on-dev-install won't be run, but...
$ npm publish
And thing-I-dont-want-on-dev-install will be run.
It's worth noting that the prepublish lifecycle is ALSO called when you build a tarball, so:
$ npm pack
Will call your prepublish lifecycle, but with the example above,
thing-I-dont-want-on-dev-install won't be run.
If you want this, you can use another helper included here:
"scripts": {
"prepublish": "not-in-install && thing-I-dont-want-on-dev-install || in-install"
}The above will run your thing-I-dont-want-on-dev-install on publish and
on pack but not on install.