Current Behavior:

npm ci doesn't run the postinstall script

Expected Behavior:

npm ci should run the postinstall script

Steps To Reproduce:

1. create a new folder and put the following minimal package.json in it:

{
  "scripts": {
    "postinstall": "echo \"it should echo this\""
  }
}

2. run npm install
3. run npm ci
4. notice how npm ci DOES NOT run the postinstall script

Environment:

ex.

• OS: Kubuntu 20.04
• Node: 14.13.0
• npm: 7.0.0-rc.0