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Configuration

The following documentation outlines how to work with configuration.

Configuring rules​

npm-package-json-lint rules can either be run as an error, warning, or off.

  • "warning" - run the rule as a warning
  • "error" - run the rule as an error
  • "off" - disables the rule

Ex: "require-author": "error"

.npmpackagejsonlintrc.json file​

Please see .npmpackagejsonlintrc.json file.

Shareable config​

v2+ added support for shareable npm-package-json-lint config! If you would like to use your .npmpackagejsonlintrc.json file in multiple projects you can create a npm module that exports your config.

How to create shared config​

Create a new npm module that exports the desired npm-package-json-lint configuration. The module name must start with npm-package-json-lint-config-. Add the desired configuration to the index.js file.

const config = {
  'rules': {
    'require-name': 'error'
  }
};

module.exports = config;

For a complete example, please see npm-package-json-lint-config-default

How to publish a shared config module​

Follow these instructions for publishing to npm. Please add the following keywords for discoverability, npm-package-json-lint, npm-package-json-lintconfig, and npm-package-json-lint-config.

Please also add a dependency on npm-package-json-lint using peerdependencies. Example

peerDependencies: {
  "npm-package-json-lint": ">= 2"
}

How to use a shared config module​

Add the following to your .npmpackagejsonlintrc.json file.

{
  "extends": "npm-package-json-lint-config-default"
}

npm-package-json-lint-config-default can be replaced by the name of the shared module you are using.

Configuration override​

v4+ added support for configuration overrides. This is great for monorepos. Please see an example below:

{
  "extends": "npm-package-json-lint-config-default",
  "overrides": [
    {
      "patterns": ["modules/module1/**/package.json"],
      "rules": {
        "license-type": "warning"
      }
    },
    {
      "patterns": ["modules/module2/**/package.json"],
      "rules": {
        "valid-values-license": ["error", ["Bob"]]
      }
    }
  ]
}

What is this doing?

  • license-type will be set to warning for all package.json files under modules/module1.
  • valid-values-license will be set to ["error", ["Bob"]] for all package.json files under modules/module2.

Config Sources​

There are multiple ways to provide configuration. They include:

  1. Add a npmpackagejsonlint property in package.json file
  2. Add a npmpackagejsonlint.config.js file that exports a config object in the current working directory.
  3. Add a global .npmpackagejsonlintrc.json file in the root of your user directory
  4. Add a global npmpackagejsonlint.config.js file that exports a config object in the root of your user directory

Config Examples​

Note: this is valid for v2.x.x+. Please see migrating-from-v1-to-v2. Please see .npmpackagejsonlintrc.json if you would like a v1 example.

.npmpackagejsonlintrc / .npmpackagejsonlintrc.json​

{
  "rules": {
    "require-author": "error",
    "require-description": "error",
    "require-engines": "error",
    "require-license": "error",
    "require-name": "error",
    "require-repository": "error",
    "require-version": "error",
    "require-bugs": "error",
    "require-homepage": "error",
    "require-keywords": "error",
    "bin-type": "error",
    "config-type": "error",
    "description-type": "error",
    "devDependencies-type": "error",
    "directories-type": "error",
    "engines-type": "error",
    "files-type": "error",
    "homepage-type": "error",
    "keywords-type": "error",
    "license-type": "error",
    "main-type": "error",
    "man-type": "error",
    "name-type": "error",
    "preferGlobal-type": "error",
    "private-type": "error",
    "repository-type": "error",
    "scripts-type": "error",
    "version-type": "error",
    "valid-values-author": ["error", [
      "Thomas Lindner"
    ]],
    "valid-values-private": ["error", [
      false
    ]],
    "no-restricted-dependencies": ["error", [
      "gulping-npm-package-json-lint"
    ]],
    "no-restricted-pre-release-dependencies": ["error", [
      "gulping-npm-package-json-lint"
    ]],
    "no-restricted-devDependencies": ["error", [
      "gulping-npm-package-json-lint"
    ]],
    "no-restricted-pre-release-devDependencies": ["error", [
      "gulping-npm-package-json-lint"
    ]],
    "name-format": "error",
    "version-format": "error"
  }
}

npmpackagejsonlint package.json property​

Note: Only one rule included to keep the example concise

{
  "name": "npm-package-json-lint",
  "version": "0.1.0",
  "description": "CLI app for linting package.json files.",
  "keywords": [
    "lint"
  ],
  "homepage": "https://github.com/tclindner/npm-package-json-lint",
  "author": "Thomas Lindner",
  "repository": {
    "type": "git",
    "url": "https://github.com/tclindner/npm-package-json-lint"
  },
  "devDependencies": {
    "mocha": "^2.4.5"
  },
  "npmpackagejsonlint": {
    "rules": {
      "require-author": "error"
    }
  }
}

npmpackagejsonlint.config.js​

Note: Only one rule included to keep the example concise

'use strict';

module.exports = {
  rules: {
    'require-author': 'error'
  }
};

Configuration Schema​

A JSON schema is available here to validate your configuration. http://json.schemastore.org/npmpackagejsonlintrc.