7a304b17c4
- Rename `installing/core` → `installing/deps-installer` and `installing/headless` → `installing/deps-restorer` for clearer naming
- Rename all `plugin-commands-*` directories to use `-commands` suffix convention
- Merge multiple command packages per domain into a single `commands/` directory (one commands package per domain rule):
- `building/{build-commands,policy-commands}` → `building/commands`
- `deps/compliance/{audit-commands,licenses-commands,sbom-commands}` → `deps/compliance/commands`
- `deps/inspection/{listing-commands,outdated-commands}` → `deps/inspection/commands`
- `store/{store-commands,inspecting-commands}` → `store/commands`
- `releasing/{publish-commands,deploy-commands}` → `releasing/commands`
- `cli/{completion-commands,doctor-commands}` → `cli/commands`
- `engine/pm/{self-updater-commands,setup-commands}` → `engine/pm/commands`
- `engine/runtime/{runtime-commands,env-commands}` → `engine/runtime/commands`
- `cache/cache-commands` → `cache/commands`
- Fix relative paths in merged test files (pnpmBin, __typings__ references)
- Update jest config to ignore `utils/` dirs at any nesting depth under `test/`
- Fix stale package names in changeset files
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Fast, disk space efficient package manager:
- Fast. Up to 2x faster than the alternatives (see benchmark).
- Efficient. Files inside
node_modulesare linked from a single content-addressable storage. - Great for monorepos.
- Strict. A package can access only dependencies that are specified in its
package.json. - Deterministic. Has a lockfile called
pnpm-lock.yaml. - Works as a Node.js version manager. See pnpm env use.
- Works everywhere. Supports Windows, Linux, and macOS.
- Battle-tested. Used in production by teams of all sizes since 2016.
- See the full feature comparison with npm and Yarn.
To quote the Rush team:
Microsoft uses pnpm in Rush repos with hundreds of projects and hundreds of PRs per day, and we’ve found it to be very fast and reliable.
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Background
pnpm uses a content-addressable filesystem to store all files from all module directories on a disk. When using npm, if you have 100 projects using lodash, you will have 100 copies of lodash on disk. With pnpm, lodash will be stored in a content-addressable storage, so:
- If you depend on different versions of lodash, only the files that differ are added to the store.
If lodash has 100 files, and a new version has a change only in one of those files,
pnpm updatewill only add 1 new file to the storage. - All the files are saved in a single place on the disk. When packages are installed, their files are linked from that single place consuming no additional disk space. Linking is performed using either hard-links or reflinks (copy-on-write).
As a result, you save gigabytes of space on your disk and you have a lot faster installations!
If you'd like more details about the unique node_modules structure that pnpm creates and
why it works fine with the Node.js ecosystem, read this small article: Flat node_modules is not the only way.
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Getting Started
Benchmark
pnpm is up to 2x faster than npm and Yarn classic. See all benchmarks here.
Benchmarks on an app with lots of dependencies:
