[Feature] Configurable location of node_modules/.store with nodeLinker: pnpm

[kirill-konshin]

• I'd be willing to implement this feature (contributing guide)
• This feature is important to have in this repository; a contrib plugin wouldn't do

Describe the user story

It seems that copying directories to node_modules/.store during install takes considerable amount of time, so I was trying to persist this directory between jobs. Obvious solution is to put it in GitLab cache, but zip-unzip and network also takes time.

As a developer it would be convenient to place node_modules/.store somewhere else to be global, especially on CI. The benefit is that on GitLab Runner I can make a mounted volume, put .store there and share it between jobs, thus speeding up the install.

Currently this path

berry/packages/plugin-pnpm/sources/PnpmLinker.ts

Lines 311 to 313 in 8bfe2d5

	function getStoreLocation(project: Project) {
	return ppath.join(getNodeModulesLocation(project), `.store`);
	}

is hardcoded.

PNPM itself has global store by default: ~/.pnpm-store and provides config options pnpm config set store-dir /path/to/.pnpm-store to set it.

Compare the install times:

With node_modules/.store placed before install:

$ find node_modules -mindepth 1 -not -name ".cache" -exec rm -rf {} +
$ yarn install
➤ YN0000: ┌ Fetch step
➤ YN0000: └ Completed in 1s 418ms
➤ YN0000: ┌ Link step
➤ YN0000: └ Completed in 7s 889ms (not more than 10-15s, average arond 7-8s)

Vs when no .store (Yarn's own cache is pre-warmed already):

$ rm -rf node_modules
$ yarn install
➤ YN0000: ┌ Fetch step
➤ YN0000: └ Completed in 1s 418ms
➤ YN0000: ┌ Link step
➤ YN0000: └ Completed in 43s 678ms (average around ~45s)

Describe the solution you'd like

A simple config variable similar to cacheFolder would be enough: storeFolder for example.

Describe the drawbacks of your solution

Since I will be able to control the location and the variable, I don't see any drawbacks, just don't use the var if default behavior is OK.

Describe alternatives you've considered

I tried to symlink /cache/.store (where /cache is a mounted volume) to node_modules/.cache, installation was semi-successful: links were created but install failed with:

➤ YN0000: ┌ Link step
➤ YN0001: │ Error: ENOTDIR: not a directory, rmdir '/Users/dis/Sites/CX/frontend/node_modules/.store'