How to use "merge: false" in api.extendPackage

[deraw]

Version

4.0.5

Environment info

  System:
    OS: Linux 4.15 Ubuntu 18.04.3 LTS (Bionic Beaver)
    CPU: (8) x64 Intel(R) Core(TM) i7-7700HQ CPU @ 2.80GHz
  Binaries:
    Node: 12.1.0 - /usr/local/bin/node
    Yarn: 1.19.1 - /usr/bin/yarn
    npm: 6.12.0 - /usr/local/bin/npm
  Browsers:
    Chrome: 78.0.3904.70
    Firefox: 70.0
  npmGlobalPackages:
    @vue/cli: 4.0.3

Steps to reproduce

Create a plugin and try to override a field in package.json in a generator.

What is expected?

In the documentation of api.extendPackage(), it is stated that "Nested fields are deep-merged unless { merge: false } is passed."

What is actually happening?

I don't see any part that handles this case in the code, I don't known how to override a field 🙁

[tobyzerner]

Building a preset and was just wondering this exact thing.

[haoqunjiang]

That comment was outdated documentation referring to an option that was removed long before @vue/cli 3 stable release. It will be added back in the next version.