@semantic-release/npm
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semantic-release plugin to publish a npm package
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# @semantic-release/npm
[**semantic-release**](https://github.com/semantic-release/semantic-release) plugin to publish a [npm](https://www.npmjs.com) package.
[](https://github.com/semantic-release/npm/actions?query=workflow%3ATest+branch%3Amaster) [](https://www.npmjs.com/package/@semantic-release/npm)
[](https://www.npmjs.com/package/@semantic-release/npm)
[](https://www.npmjs.com/package/@semantic-release/npm)
| Step | Description |
| ------------------ | -------------------------------------------------------------------------------------------------------------------------------- |
| `verifyConditions` | Verify the presence of the `NPM_TOKEN` environment variable, or an `.npmrc` file, and verify the authentication method is valid. |
| `prepare` | Update the `package.json` version and [create](https://docs.npmjs.com/cli/pack) the npm package tarball. |
| `addChannel` | [Add a release to a dist-tag](https://docs.npmjs.com/cli/dist-tag). |
| `publish` | [Publish the npm package](https://docs.npmjs.com/cli/publish) to the registry. |
## Install
```bash
$ npm install @semantic-release/npm -D
```
## Usage
The plugin can be configured in the [**semantic-release** configuration file](https://github.com/semantic-release/semantic-release/blob/master/docs/usage/configuration.md#configuration):
```json
{
"plugins": ["@semantic-release/commit-analyzer", "@semantic-release/release-notes-generator", "@semantic-release/npm"]
}
```
## Configuration
### Npm registry authentication
The npm authentication configuration is **required** and can be set via [environment variables](#environment-variables).
Both the [token](https://docs.npmjs.com/getting-started/working_with_tokens) and the legacy (`username`, `password` and `email`) authentication are supported. It is recommended to use the [token](https://docs.npmjs.com/getting-started/working_with_tokens) authentication. The legacy authentication is supported as the alternative npm registries [Artifactory](https://www.jfrog.com/open-source/#os-arti) and [npm-registry-couchapp](https://github.com/npm/npm-registry-couchapp) only supports that form of authentication.
**Notes**:
- Only the `auth-only` [level of npm two-factor authentication](https://docs.npmjs.com/getting-started/using-two-factor-authentication#levels-of-authentication) is supported, **semantic-release** will not work with the default `auth-and-writes` level.
- The presence of an `.npmrc` file will override any specified environment variables.
### Environment variables
| Variable | Description |
| ----------------------- | ----------------------------------------------------------------------------------------------------------------------------- |
| `NPM_TOKEN` | Npm token created via [npm token create](https://docs.npmjs.com/getting-started/working_with_tokens#how-to-create-new-tokens) |
| `NPM_CONFIG_USERCONFIG` | Path to non-default .npmrc file |
### Options
| Options | Description | Default |
| ------------ | ------------------------------------------------------------------------------------------------------------------ | -------------------------------------------------------------------------------------------------------------------------------- |
| `npmPublish` | Whether to publish the `npm` package to the registry. If `false` the `package.json` version will still be updated. | `false` if the `package.json` [private](https://docs.npmjs.com/files/package.json#private) property is `true`, `true` otherwise. |
| `pkgRoot` | Directory path to publish. | `.` |
| `tarballDir` | Directory path in which to write the package tarball. If `false` the tarball is not be kept on the file system. | `false` |
**Note**: The `pkgRoot` directory must contain a `package.json`. The version will be updated only in the `package.json` and `npm-shrinkwrap.json` within the `pkgRoot` directory.
**Note**: If you use a [shareable configuration](https://github.com/semantic-release/semantic-release/blob/master/docs/usage/shareable-configurations.md#shareable-configurations) that defines one of these options you can set it to `false` in your [**semantic-release** configuration](https://github.com/semantic-release/semantic-release/blob/master/docs/usage/configuration.md#configuration) in order to use the default value.
### Npm configuration
The plugin uses the [`npm` CLI](https://github.com/npm/cli) which will read the configuration from [`.npmrc`](https://docs.npmjs.com/files/npmrc). See [`npm config`](https://docs.npmjs.com/misc/config) for the option list.
The [`registry`](https://docs.npmjs.com/misc/registry) can be configured via the npm environment variable `NPM_CONFIG_REGISTRY` and will take precedence over the configuration in `.npmrc`.
The [`registry`](https://docs.npmjs.com/misc/registry) and [`dist-tag`](https://docs.npmjs.com/cli/dist-tag) can be configured in the `package.json` and will take precedence over the configuration in `.npmrc` and `NPM_CONFIG_REGISTRY`:
```json
{
"publishConfig": {
"registry": "https://registry.npmjs.org/",
"tag": "latest"
}
}
```
### Examples
The `npmPublish` and `tarballDir` option can be used to skip the publishing to the `npm` registry and instead, release the package tarball with another plugin. For example with the [@semantic-release/github](https://github.com/semantic-release/github) plugin:
```json
{
"plugins": [
"@semantic-release/commit-analyzer",
"@semantic-release/release-notes-generator",
[
"@semantic-release/npm",
{
"npmPublish": false,
"tarballDir": "dist"
}
],
[
"@semantic-release/github",
{
"assets": "dist/*.tgz"
}
]
]
}
```
When publishing from a sub-directory with the `pkgRoot` option, the `package.json` and `npm-shrinkwrap.json` updated with the new version can be moved to another directory with a `postversion`. For example with the [@semantic-release/git](https://github.com/semantic-release/git) plugin:
```json
{
"plugins": [
"@semantic-release/commit-analyzer",
"@semantic-release/release-notes-generator",
[
"@semantic-release/npm",
{
"pkgRoot": "dist"
}
],
[
"@semantic-release/git",
{
"assets": ["package.json", "npm-shrinkwrap.json"]
}
]
]
}
```
```json
{
"scripts": {
"postversion": "cp -r package.json .. && cp -r npm-shrinkwrap.json .."
}
}
```