I built a monorepo using Lerna and Yarn workspaces.
Everything works fine but everytime I install a new dependency on a package (let's call him A) using:
yarn add <package_name>
Yarn adds it and then triggers the install script of all the packages in the monorepo, even the ones that A doesn't rely on.
It there anyway to avoid this? It takes a few moment to install them for no reason at all.
Try adding to the specific workspace with:-
yarn workspace <workspace_name> add <package_name>
For some docs check here
yarn install in the root to install and make it available to each existing package. Another way can be, but it is not the best way, is cd(ing) to the package you want and run yarn there.
Commented
Jan 21, 2023 at 18:28
Using scope add the package to the particular module.
lerna add some_package_1 --scope=some_module_x
More: https://github.com/lerna/lerna/tree/master/commands/add#readme
You can try Yarn 2 with nodeLinker: node-modules in .yarnrc.yml. Yarn 2 guarantees to trigger rebuild only on packages that have their dependencies changed, this is something that was not guaranteed by Yarn 1. However there will still be a very rare case when seemingly unrelated packages be rebuilt if they are hoisted differently after adding new package, but this will happen very rarely.
