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Version: 10.x

package.json

パッケージに関する情報を記述したファイルです。 タイトル、作者、依存パッケージなどのメタ情報を含んでいます。 This is a standard preserved across all major Node.js package managers, including pnpm.

engines​

ソフトウェアが（パッケージが）動作するNode.jsとpnpmのバージョンを指定できます。

If you find that your use of a certain package doesn’t require one of its dependencies, you may use - to remove it. For example, if package foo@1.0.0 requires a large package named bar for a function that you don’t use, removing it could reduce install time:

{
  "pnpm": {
    "overrides": {
      "foo@1.0.0>bar": "-"
    }
  }
}

This feature is especially useful with optionalDependencies, where most optional packages can be safely skipped.

pnpm.packageExtensions​

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.

より長い例は次のとおりです。

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

Together with Yarn, we maintain a database of packageExtensions to patch broken packages in the ecosystem. If you use packageExtensions, consider sending a PR upstream and contributing your extension to the @yarnpkg/extensions database.

pnpm.peerDependencyRules​

pnpm.peerDependencyRules.ignoreMissing​

pnpm は、このリストで指定された peerDependencies が存在しなくても警告を出力しません。

For instance, with the following configuration, pnpm will not print warnings if a dependency needs react but react is not installed:

{
  "pnpm": {
    "peerDependencyRules": {
      "ignoreMissing": ["react"]
    }
  }
}

Package name patterns may also be used:

{
  "pnpm": {
    "peerDependencyRules": {
      "ignoreMissing": ["@babel/*", "@eslint/*"]
    }
  }
}

pnpm.peerDependencyRules.allowedVersions​

指定された範囲については peerDependencies が満たされていなくても警告が表示されなくなります。

For instance, if you have some dependencies that need react@16 but you know that they work fine with react@17, then you may use the following configuration:

{
  "pnpm": {
    "peerDependencyRules": {
      "allowedVersions": {
        "react": "17"
      }
    }
  }
}

This will tell pnpm that any dependency that has react in its peer dependencies should allow react v17 to be installed.

It is also possible to suppress the warnings only for peer dependencies of specific packages. For instance, with the following configuration react v17 will be only allowed when it is in the peer dependencies of the button v2 package or in the dependencies of any card package:

{
  "pnpm": {
    "peerDependencyRules": {
      "allowedVersions": {
        "button@2>react": "17",
        "card>react": "17"
      }
    }
  }
}

pnpm.peerDependencyRules.allowAny​

allowAny is an array of package name patterns, any peer dependency matching the pattern will be resolved from any version, regardless of the range specified in peerDependencies. 例：

{
  "pnpm": {
    "peerDependencyRules": {
      "allowAny": ["@babel/*", "eslint"]
    }
  }
}

The above setting will mute any warnings about peer dependency version mismatches related to @babel/ packages or eslint.

pnpm.neverBuiltDependencies​

このフィールドに指定した依存関係のビルドは無視されます。 ここに列挙されたパッケージの「preinstall」、「install」、および「postinstall」スクリプトは、インストール中に実行されません。

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

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

pnpm.onlyBuiltDependencies​

インストール中に実行することを許可されたパッケージのリスト。 このフィールドが存在する場合、列挙されたパッケージのみがインストールスクリプトを実行できます。

例:

{
  "pnpm": {
    "onlyBuiltDependencies": ["fsevents"]
  }
}

pnpm.onlyBuiltDependenciesFile​

This configuration option allows users to specify a JSON file that lists the only packages permitted to run installation scripts during the pnpm install process. By using this, you can enhance security or ensure that only specific dependencies execute scripts during installation.

例:

{
  "dependencies": {
    "@my-org/policy": "1.0.0"
  },
  "pnpm": {
    "onlyBuiltDependenciesFile": "node_modules/@my-org/policy/onlyBuiltDependencies.json"
  }
}

The JSON file itself should contain an array of package names:

node_modules/@my-org/policy/onlyBuiltDependencies.json
[
  "fsevents"
]

pnpm.allowedDeprecatedVersions​

This setting allows muting deprecation warnings of specific packages.

例:

{
  "pnpm": {
    "allowedDeprecatedVersions": {
      "express": "1",
      "request": "*"
    }
  }
}

With the above configuration pnpm will not print deprecation warnings about any version of request and about v1 of express.

pnpm.patchedDependencies​

This field is added/updated automatically when you run pnpm patch-commit. It is a dictionary where the key should be the package name and exact version. The value should be a relative path to a patch file.

例:

{
  "pnpm": {
    "patchedDependencies": {
      "express@4.18.1": "patches/express@4.18.1.patch"
    }
  }
}

pnpm.allowNonAppliedPatches​

When true, installation won't fail if some of the patches from the patchedDependencies field were not applied.

{
  "pnpm": {
    "patchedDependencies": {
      "express@4.18.1": "patches/express@4.18.1.patch"
    },
    "allowNonAppliedPatches": true
}

pnpm.updateConfig​

pnpm.updateConfig.ignoreDependencies​

Sometimes you can't update a dependency. For instance, the latest version of the dependency started to use ESM but your project is not yet in ESM. Annoyingly, such a package will be always printed out by the pnpm outdated command and updated, when running pnpm update --latest. However, you may list packages that you don't want to upgrade in the ignoreDependencies field:

{
  "pnpm": {
    "updateConfig": {
      "ignoreDependencies": ["load-json-file"]
    }
  }
}

Patterns are also supported, so you may ignore any packages from a scope: @babel/*.

pnpm.auditConfig​

pnpm.auditConfig.ignoreCves​

A list of CVE IDs that will be ignored by the pnpm audit command.

{
  "pnpm": {
    "auditConfig": {
      "ignoreCves": [
        "CVE-2022-36313"
      ]
    }
  }
}

pnpm.auditConfig.ignoreGhsas​

A list of GHSA Codes that will be ignored by the pnpm audit command.

{
  "pnpm": {
    "auditConfig": {
      "ignoreGhsas": [
        "GHSA-42xw-2xvc-qx8m",
        "GHSA-4w2v-q235-vp99",
        "GHSA-cph5-m8f7-6c5x",
        "GHSA-vh95-rmgr-6w4m"
      ]
    }
  }
}

pnpm.requiredScripts​

Scripts listed in this array will be required in each project of the workspace. Otherwise, pnpm -r run <script name> will fail.

{
  "pnpm": {
    "requiredScripts": ["build"]
  }
}

pnpm.supportedArchitectures​

You can specify architectures for which you'd like to install optional dependencies, even if they don't match the architecture of the system running the install.

For example, the following configuration tells to install optional dependencies for Windows x64:

{
  "pnpm": {
    "supportedArchitectures": {
      "os": ["win32"],
      "cpu": ["x64"]
    }
  }
}

Whereas this configuration will install optional dependencies for Windows, macOS, and the architecture of the system currently running the install. It includes artifacts for both x64 and arm64 CPUs:

{
  "pnpm": {
    "supportedArchitectures": {
      "os": ["win32", "darwin", "current"],
      "cpu": ["x64", "arm64"]
    }
  }
}

Additionally, supportedArchitectures also supports specifying the libc of the system.

pnpm.ignoredOptionalDependencies​

If an optional dependency has its name included in this array, it will be skipped. 例:

{
  "pnpm": {
    "ignoredOptionalDependencies": ["fsevents", "@esbuild/*"]
  }
}

pnpm.executionEnv.nodeVersion​

Specifies which exact Node.js version should be used for the project's runtime. pnpm will automatically install the specified version of Node.js and use it for running pnpm run commands or the pnpm node command.

例:

{
  "pnpm": {
    "executionEnv": {
      "nodeVersion": "16.16.0"
    }
  }
}

resolutions​

Functionally identical to pnpm.overrides, this field is intended to make it easier to migrate from Yarn.

resolutions and pnpm.overrides get merged before package resolution (with pnpm.overrides taking precedence), which can be useful when you're migrating from Yarn and need to tweak a few packages just for pnpm.