pnpm vs npm
npm's flat tree
npm maintains a flattened dependency tree as of version 3. This leads to less disk space bloat, with a messy
node_modules directory as a side effect.
On the other hand, pnpm manages
node_modules by using hard linking and symbolic linking to a global on-disk content-addressable store. This nets you the benefits of far less disk space usage, while also keeping your
node_modules clean. There is documentation on the store layout if you wish to learn more.
The good thing about pnpm's proper
node_modules structure is that it "helps to avoid silly bugs" by making it impossible to use modules that are not specified in the project's
pnpm no permite la instalación de paquetes sin guardarlos en el
package.json. If no parameters are passed to
pnpm add, packages are saved as regular dependencies. Al igual que con npm,
--save-optional pueden usarse para instalar paquetes como dependencias de desarrollo o dependencias opcionales.
As a consequence of this limitation, projects won't have any extraneous packages when they use pnpm unless they remove a dependency and leave it orphaned. That's why pnpm's implementation of the prune command does not allow you to specify packages to prune - it ALWAYS removes all extraneous and orphaned packages.
Directory dependencies start with the
file: prefix and point to a directory in the filesystem. Like npm, pnpm symlinks those dependencies. Unlike npm, pnpm does not perform installation for the file dependencies.
This means that if you have a package called
<root>/foo) that has
bar@file:../bar as a dependency, pnpm won't perform installation for
<root>/bar when you run
pnpm install on
If you need to run installations in several packages at the same time, for instance in the case of a monorepo, you should look at the documentation for