corepack/CONTRIBUTING.md

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# Contributing to Corepack
If you want to build Corepack yourself, you can build the project like this:
1. Clone this repository. Some restrictions on the cloning location apply to Windows users, read [Contributing on Windows](#contributing-on-windows) for more information.
2. Run `yarn install` (or `corepack yarn install` if the global version of
`yarn` is not provided by Corepack).
3. Run `yarn build` (or `corepack yarn build`).
The `dist/` directory now contains the corepack build and the shims.
Call `node ./dist/corepack --help` and behold.
You can also run the tests with `yarn test`.
## Contributing on Windows
If you are cloning the repo to a directory on a Microsoft Windows operating system, it is recommended to use the same drive as your Windows `HOMEDRIVE` to avoid build and other issues related to a current restriction with Yarn Plug'n'Play caching.
If you are unable to use your `HOMEDRIVE`, you may be able to work around the issue by setting the environment variable `YARN_ENABLE_GLOBAL_CACHE` to `false` before running `yarn install` (or `corepack yarn install`).
# Adding a new package manager
New package managers can be added by editing the following files:
- [`config.json`](./config.json),
- [`.github/workflows/sync.yml`](./.github/workflows/sync.yml) that keeps pinned
versions up-to-date,
- [`package.json`](./package.json) to add the new shims to the list of
`"publishConfig/bin"` and `"executableFiles"`,
- [`sources/types.ts`](./sources/types.ts) to add the package manager to the
`SupportedPackageManagers` enum,
- [`tests/main.test.ts`](./tests/main.test.ts) tests to ensure the added package
manager works as expected.
Once added, the shims pertaining to new package managers won't be automatically
enabled by `corepack enable` when called without arguments - it'll require users
to explicitly install the relevant shims (e.g. `corepack enable mypm`). A
separate PR adding the package manager to the default list can be opened a
couple of months after the new package manager was introduced.
Finally, this repository does not manage which package managers are distributed
with default install of Node.js. This is managed in the
[nodejs/node](https://github.com/nodejs/node) repository, refer to the
[CONTRIBUTING.md](https://github.com/nodejs/node/blob/main/CONTRIBUTING.md) over
there for more information.
## Developer's Certificate of Origin 1.1
By making a contribution to this project, I certify that:
* (a) The contribution was created in whole or in part by me and I
have the right to submit it under the open source license
indicated in the file; or
* (b) The contribution is based upon previous work that, to the best
of my knowledge, is covered under an appropriate open source
license and I have the right under that license to submit that
work with modifications, whether created in whole or in part
by me, under the same open source license (unless I am
permitted to submit under a different license), as indicated
in the file; or
* (c) The contribution was provided directly to me by some other
person who certified (a), (b) or (c) and I have not modified
it.
* (d) I understand and agree that this project and the contribution
are public and that a record of the contribution (including all
personal information I submit with it, including my sign-off) is
maintained indefinitely and may be redistributed consistent with
this project or the open source license(s) involved.
## Moderation Policy
The [Node.js Moderation Policy] applies to this project.
[Node.js Moderation Policy]:
https://github.com/nodejs/admin/blob/master/Moderation-Policy.md