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Current Path: /usr/local/lib/node_modules/corepack

usr / local / lib / node_modules / corepack /

📁 ..
📄 CHANGELOG.md(11.97 KB)
📄 LICENSE.md(1.04 KB)
📄 README.md(10.54 KB)
📁 dist
📄 package.json(2.98 KB)
📁 shims

Editing: README.md

# <img src="./icon.svg" height="25" /> corepack

Corepack is a zero-runtime-dependency Node.js script that acts as a bridge
between Node.js projects and the package managers they are intended to be used
with during development. In practical terms, **Corepack lets you use Yarn, npm,
and pnpm without having to install them**.

## How to Install

### Default Installs

Corepack is [distributed by default with all recent Node.js versions](https://nodejs.org/api/corepack.html).
Run `corepack enable` to install the required Yarn and pnpm binaries on your path.

### Manual Installs

<details>
<summary>Install Corepack using npm</summary>

First uninstall your global Yarn and pnpm binaries (just leave npm). In general,
you'd do this by running the following command:

```shell
npm uninstall -g yarn pnpm

# That should be enough, but if you installed Yarn without going through npm it might
# be more tedious - for example, you might need to run `brew uninstall yarn` as well.
```

Then install Corepack:

```shell
npm install -g corepack
```

We do acknowledge the irony and overhead of using npm to install Corepack, which
is at least part of why the preferred option is to use the Corepack version that
is distributed along with Node.js itself.

</details>

<details><summary>Install Corepack from source</summary>

See [`CONTRIBUTING.md`](./CONTRIBUTING.md).

</details>

## Usage

### When Building Packages

Just use your package managers as you usually would. Run `yarn install` in Yarn
projects, `pnpm install` in pnpm projects, and `npm` in npm projects. Corepack
will catch these calls, and depending on the situation:

- **If the local project is configured for the package manager you're using**,
  Corepack will silently download and cache the latest compatible version.

- **If the local project is configured for a different package manager**,
  Corepack will request you to run the command again using the right package
  manager - thus avoiding corruptions of your install artifacts.

- **If the local project isn't configured for any package manager**, Corepack
  will assume that you know what you're doing, and will use whatever package
  manager version has been pinned as "known good release". Check the relevant
  section for more details.

### When Authoring Packages

Set your package's manager with the `packageManager` field in `package.json`:

```json
{
  "packageManager": "yarn@3.2.3+sha224.953c8233f7a92884eee2de69a1b92d1f2ec1655e66d08071ba9a02fa"
}
```

Here, `yarn` is the name of the package manager, specified at version `3.2.3`,
along with the SHA-224 hash of this version for validation.
`packageManager@x.y.z` is required. The hash is optional but strongly
recommended as a security practice. Permitted values for the package manager are
`yarn`, `npm`, and `pnpm`.

## Known Good Releases

When running Corepack within projects that don't list a supported package
manager, it will default to a set of Known Good Releases. In a way, you can
compare this to Node.js, where each version ships with a specific version of
npm.

If there is no Known Good Release for the requested package manager, Corepack
looks up the npm registry for the latest available version and cache it for
future use.

The Known Good Releases can be updated system-wide using the `--activate` flag
from the `corepack prepare` and `corepack hydrate` commands.

## Offline Workflow

The utility commands detailed in the next section.

- Either you can use the network while building your container image, in which
  case you'll simply run `corepack prepare` to make sure that your image
  includes the Last Known Good release for the specified package manager.

- If you want to have _all_ Last Known Good releases for all package managers,
    just use the `--all` flag which will do just that.

- Or you're publishing your project to a system where the network is
  unavailable, in which case you'll preemptively generate a package manager
  archive from your local computer (using `corepack prepare -o`) before storing
  it somewhere your container will be able to access (for example within your
  repository). After that it'll just be a matter of running
  `corepack hydrate <path/to/corepack.tgz>` to setup the cache.

## Utility Commands

### `corepack <binary name>[@<version>] [... args]`

This meta-command runs the specified package manager in the local folder. You
can use it to force an install to run with a given version, which can be useful
when looking for regressions.

Note that those commands still check whether the local project is configured for
the given package manager (ie you won't be able to run `corepack yarn install`
on a project where the `packageManager` field references `pnpm`).

### `corepack enable [... name]`

| Option                | Description                             |
| --------------------- | --------------------------------------- |
| `--install-directory` | Add the shims to the specified location |

This command will detect where Corepack is installed and will create shims next
to it for each of the specified package managers (or all of them if the command
is called without parameters). Note that the npm shims will not be installed
unless explicitly requested, as npm is currently distributed with Node.js
through other means.

If the file system where the `corepack` binary is located is read-only, this
command will fail. A workaround is to add the binaries as alias in your
shell configuration file (e.g. in `~/.bash_aliases`):

```sh
alias yarn="corepack yarn"
alias yarnpkg="corepack yarnpkg"
alias pnpm="corepack pnpm"
alias pnpx="corepack pnpx"
alias npm="corepack npm"
alias npx="corepack npx"
```

On Windows PowerShell, you can add functions using the `$PROFILE` automatic
variable:

```powershell
echo "function yarn { corepack yarn `$args }" >> $PROFILE
echo "function yarnpkg { corepack yarnpkg `$args }" >> $PROFILE
echo "function pnpm { corepack pnpm `$args }" >> $PROFILE
echo "function pnpx { corepack pnpx `$args }" >> $PROFILE
echo "function npm { corepack npm `$args }" >> $PROFILE
echo "function npx { corepack npx `$args }" >> $PROFILE
```

### `corepack disable [... name]`

| Option                | Description                                |
| --------------------- | ------------------------------------------ |
| `--install-directory` | Remove the shims to the specified location |

This command will detect where Node.js is installed and will remove the shims
from there.

### `corepack prepare [... name@version]`

| Option        | Description                                                             |
| ------------- | ----------------------------------------------------------------------- |
| `--all`       | Prepare the "Last Known Good" version of all supported package managers |
| `-o,--output` | Also generate an archive containing the package managers                |
| `--activate`  | Also update the "Last Known Good" release                               |

This command will download the given package managers (or the one configured for
the local project if no argument is passed in parameter) and store it within the
Corepack cache. If the `-o,--output` flag is set (optionally with a path as
parameter), an archive will also be generated that can be used by the
`corepack hydrate` command.

### `corepack hydrate <path/to/corepack.tgz>`

| Option       | Description                               |
| ------------ | ----------------------------------------- |
| `--activate` | Also update the "Last Known Good" release |

This command will retrieve the given package manager from the specified archive
and will install it within the Corepack cache, ready to be used without further
network interaction.

## Environment Variables

- `COREPACK_DEFAULT_TO_LATEST` can be set to `0` in order to instruct Corepack
  not to lookup on the remote registry for the latest version of the selected
  package manager.

- `COREPACK_ENABLE_NETWORK` can be set to `0` to prevent Corepack from accessing
  the network (in which case you'll be responsible for hydrating the package
  manager versions that will be required for the projects you'll run, using
  `corepack hydrate`).

- `COREPACK_ENABLE_STRICT` can be set to `0` to prevent Corepack from throwing
  error if the package manager does not correspond to the one defined for the
  current project. This means that if a user is using the package manager
  specified in the current project, it will use the version specified by the
  project's `packageManager` field. But if the user is using other package
  manager different from the one specified for the current project, it will use
  the system-wide package manager version.

- `COREPACK_ENABLE_PROJECT_SPEC` can be set to `0` to prevent Corepack from
  checking if the package manager corresponds to the one defined for the current
  project. This means that it will always use the system-wide package manager
  regardless of what is being specified in the project's `packageManager` field.

- `COREPACK_HOME` can be set in order to define where Corepack should install
  the package managers. By default it is set to `%LOCALAPPDATA%\node\corepack`
  on Windows, and to `$HOME/.cache/node/corepack` everywhere else.

- `COREPACK_ROOT` has no functional impact on Corepack itself; it's
  automatically being set in your environment by Corepack when it shells out to
  the underlying package managers, so that they can feature-detect its presence
  (useful for commands like `yarn init`).

- `COREPACK_NPM_REGISTRY` sets the registry base url used when retrieving
  package managers from npm. Default value is `https://registry.npmjs.org`

- `COREPACK_NPM_TOKEN` sets a Bearer token authorization header when connecting
  to a npm type registry.

- `COREPACK_NPM_USERNAME` and `COREPACK_NPM_PASSWORD` to set a Basic
  authorization header when connecting to a npm type registry. Note that both
  environment variables are required and as plain text. If you want to send an
  empty password, explicitly set `COREPACK_NPM_PASSWORD` to an empty string.

- `HTTP_PROXY`, `HTTPS_PROXY`, and `NO_PROXY` are supported through
  [`node-proxy-agent`](https://github.com/TooTallNate/node-proxy-agent).

## Troubleshooting

### Networking

There are a wide variety of networking issues that can occur while running `corepack` commands. Things to check:

- Make sure your network connection is active.
- Make sure the host for your request can be resolved by your DNS; try using
  `curl [URL]` (ipv4) and `curl -6 [URL]` (ipv6) from your shell.
- Check your proxy settings (see [Environment Variables](#environment-variables)).

## Contributing

See [`CONTRIBUTING.md`](./CONTRIBUTING.md).

## Design

See [`DESIGN.md`](/DESIGN.md).

## License (MIT)

See [`LICENSE.md`](./LICENSE.md).

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