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Version: 6.x

package.json

Файл манифеста пакета. Он содержит все метаданные пакета, включая зависимости, заголовок, автора и т.д. Это стандарт для всех основных пакетных менеджеров Node.JS, включая pnpm.

Поля

engines

Вы можете указать версию Node и pnpm, на которой работает ваш программный продукт:

{
"engines": {
"node": ">=10",
"pnpm": ">=3"
}
}

Во время локальной разработки pnpm всегда выдает сообщение об ошибке, если его версия не совпадает с версией, указанной в поле engines.

Если только пользователь не установил флаг конфигурации engine-strict (см. .npmrc), это поле носит исключительно рекомендательный характер и будет выдавать предупреждения только тогда, когда ваш пакет установлен как зависимость.

dependenciesMeta

dependenciesMeta.*.injected

Добавлено в: v6.20.0

If this is set to true for a local dependency, the package will be hard linked to the modules directory, not symlinked.

For instance, the following package.json in a workspace will create a symlink to button in the node_modules directory of card:

{
"name": "card",
"dependencies": {
"button": "workspace:1.0.0"
}
}

But what if button has react in its peer dependencies? If all projects in the monorepo use the same version of react, then no problem. But what if button is required by card that uses react@16 and form with react@17? Without using inject, you'd have to choose a single version of react and install it as dev dependency of button. But using the injected field you can inject button to a package, and button will be installed with the react version of that package.

So this will be the package.json of card:

{
"name": "card",
"dependencies": {
"button": "workspace:1.0.0",
"react": "16"
},
"dependenciesMeta": {
"button": {
"injected": true
}
}
}

button will be hard linked into the dependencies of card, and react@16 will be symlinked to the dependencies of card/node_modules/button.

And this will be the package.json of form:

{
"name": "form",
"dependencies": {
"button": "workspace:1.0.0",
"react": "17"
},
"dependenciesMeta": {
"button": {
"injected": true
}
}
}

button will be hard linked into the dependencies of form, and react@17 will be symlinked to the dependencies of form/node_modules/button.

peerDependenciesMeta

This field lists some extra information related to the dependencies listed in the peerDependencies field.

peerDependenciesMeta.*.optional

If this is set to true, the selected peer dependency will be marked as optional by the package manager. Therefore, the consumer omitting it will no longer be reported as an error.

Например:

{
"peerDependencies": {
"foo": "1"
},
"peerDependenciesMeta": {
"foo": {
"optional": true
},
"bar": {
"optional": true
}
}
}

Note that even though bar was not specified in peerDependencies, it is marked as optional. pnpm will therefore assume that any version of bar is fine. However, foo is optional, but only to the required version specification.

publishConfig

Добавлено в: v3.4.0

It is possible to override some fields in the manifest before the package is packed. The following fields may be overridden:

To override a field, add the publish version of the field to publishConfig.

For instance, the following package.json:

{
"name": "foo",
"version": "1.0.0",
"main": "src/index.ts",
"publishConfig": {
"main": "lib/index.js",
"typings": "lib/index.d.ts"
}
}

Will be published as:

{
"name": "foo",
"version": "1.0.0",
"main": "lib/index.js",
"typings": "lib/index.d.ts"
}

publishConfig.executableFiles

Добавлено в: v6.11.5

По умолчанию из соображений переносимости никакие файлы, кроме перечисленных в поле bin, не будут помечены как исполняемые в итоговом архиве пакетов. Поле executableFiles позволяет вам объявлять дополнительные поля, для которых должен быть установлен флаг исполняемого файла (+x), даже если они не доступны напрямую через поле bin.

{
"publishConfig": {
"executableFiles": [
"./dist/shim.js",
]
}
}

publishConfig.directory

Добавлено в: v6.7.0

You also can use the field publishConfig.directory to customize the published subdirectory relative to the current package.json.

It is expected to have a modified version of the current package in the specified directory (usually using third party build tools).

In this example the "dist" folder must contain a package.json

{
"name": "foo",
"version": "1.0.0",
"publishConfig": {
"directory": "dist"
}
}

pnpm.overrides

Added in: v5.10.1

This field allows you to instruct pnpm to override any dependency in the dependency graph. This is useful to enforce all your packages to use a single version of a dependency, backport a fix, or replace a dependency with a fork.

Note that the overrides field can only be set at the root of the project.

An example of the "pnpm"."overrides" field:

{
"pnpm": {
"overrides": {
"foo": "^1.0.0",
"quux": "npm:@myorg/quux@^1.0.0",
"bar@^2.1.0": "3.0.0",
"qar@1>zoo": "2"
}
}
}

You may specify the package the overriden dependency belongs to by separating the package selector from the dependency selector with a ">", for example qar@1>zoo will only override the zoo dependency of qar@1, not for any other dependencies.

pnpm.packageExtensions

Added in: v6.9.0

The packageExtensions fields offer a way to extend the existing package definitions with additional information. For example, if react-redux should have react-dom in its peerDependencies but it has not, it is possible to patch react-redux using packageExtensions:

{
"pnpm": {
"packageExtensions": {
"react-redux": {
"peerDependencies": {
"react-dom": "*"
}
}
}
}
}

The keys in packageExtensions are package names or package names and semver ranges, so it is possible to patch only some versions of a package:

{
"pnpm": {
"packageExtensions": {
"react-redux@1": {
"peerDependencies": {
"react-dom": "*"
}
}
}
}
}

The following fields may be extended using packageExtensions: dependencies, optionalDependencies, peerDependencies, and peerDependenciesMeta.

A bigger example:

{
"pnpm": {
"packageExtensions": {
"express@1": {
"optionalDependencies": {
"typescript": "2"
}
},
"fork-ts-checker-webpack-plugin": {
"dependencies": {
"@babel/core": "1"
},
"peerDependencies": {
"eslint": ">= 6"
},
"peerDependenciesMeta": {
"eslint": {
"optional": true
}
}
}
}
}
}

pnpm.neverBuiltDependencies

Added in: v5.16.0

This field allows to ignore the builds of specific dependencies. The "preinstall", "install", and "postinstall" scripts of the listed packages will not be executed during installation.

An example of the "pnpm"."neverBuiltDependencies" field:

{
"pnpm": {
"neverBuiltDependencies": ["fsevents", "level"]
}
}