How to sync `yarn.lock` with `package.json`?
I installed a package with yarn add --dev, run its setup process and during it, the package installed several other packages and added those to package.json (in devDependencies), I assume with npm. Great, but now my yarn.lock is out of sync.
What is the correct, non-manual way of syncing yarn.lock to the current state of package.json?
Edit: yarn check shows the missing packages as:
error Lockfile does not contain pattern: <package>@<version>
But it doesn't add them.
Answer
Run yarn install, or just yarn.
The lock file is updated in its entirety on any change to dependencies, i.e. when you run a yarn command.
From the Yarn docs:
Your yarn.lock file is auto-generated and should be handled entirely by Yarn. As you add/upgrade/remove dependencies with the Yarn CLI, it will automatically update your yarn.lock file. Do not edit this file directly as it is easy to break something.
(Emphasis my own)