Got `npm install` Warnings When Use `eslint-config-airbnb-base`

[iFwu]

I got warnings when use eslint-config-airbnb-base (no React support).

npm WARN jest-websocket-mock@1.1.1 requires a peer of mock-socket@~8.0 but none is installed. You must install peer dependencies yourself.
npm WARN eslint-config-airbnb@17.1.0 requires a peer of eslint-plugin-jsx-a11y@^6.1.1 but none is installed. You must install peer dependencies yourself.
npm WARN eslint-config-airbnb@17.1.0 requires a peer of eslint-plugin-react@^7.11.0 but none is installed. You must install peer dependencies yourself.

[iamturns]

Hey @iFwu - thanks for reporting this.

I need to convert this into a monorepo, and publish two npm packages to fix this issue. One package with React plugins, and the other "base" without React plugins (eslint-plugin-jsx-ally and eslint-plugin-react). This change will take some time. I'll post back here when complete and let you know.

Sorry about that. In the meantime, you are safe to ignore the warnings, everything will still operate as expected.

[kripod]

@iamturns Until then, peerDependenciesMeta could be used to mitigate this issue for Yarn users: yarnpkg/rfcs#105

[olivier-blanc-openit]

@iamturns What about defining eslint-config-airbnb as an optionalDependency, since it is a superset of eslint-config-airbnb-base?

[meteorlxy]

optionalDeps will also be installed.

[Zamiell]

@iamturns Sorry for the ping, but it has been one year, are there any update on this?

[mgenware]

@Zamiell You could try my fork of this project with react and jsx deps removed and eslint upgraded to latest version

[kripod]

@mgenware Unfortunately, the upgrade is not that easy to be pulled off correctly. The Airbnb config is still being updated to ESLint v7 as I'm writing this, and your project also depends on it. This means that unexpected errors may pop up during usage.

[wszydlak]

Maybe the best option will be to remove airbnb packages from dependencies. Just in your package describe that it will work only if using airbnb configs. And the You should require from user to install airbnb and set this config in extends before yours package?

[nicholaschiang]

Temporary fix if you're using Yarn v2 is just to use the packageExtensions option in your .yarnrc.yml file (see docs):

packageExtensions:
  eslint-config-airbnb-typescript@8.0.x:
    peerDependencies:
      eslint: "^5.16.0 || ^6.8.0 || ^7.2.0"
      eslint-plugin-import: "^2.21.2"
      eslint-plugin-jsx-a11y: "^6.3.0"
      eslint-plugin-react: "^7.20.0"
      eslint-plugin-react-hooks: "^4 || ^3 || ^2.3.0 || ^1.7.0"

[betaorbust]

A relatively inexpensive change is removing the dependency for eslint-config-airbnb and adding it to the manual install step, similar to all the plugins.
This would be a breaking change though, so ymmv.
Here's the diff: betaorbust@6e8cf53

I can put it in as a PR if that's a path you'd like to go down.

[IGassmann]

Or split this package as eslint-config-airbnb-base-typescript and eslint-config-airbnb-typescript.