JSPM

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  • License MIT

Ready-to use bundle of linting tools, containing configurations for ESLint, stylelint and markdownlint.

Package Exports

    This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (linter-bundle) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

    Readme

    linter-bundle

    npm version Dependency Status Known Vulnerabilities npm MIT license

    Ready-to use bundle of linting tools, containing configurations for

    The linting tools are running in parallel, which can improve the performance by more than 20 percent.

    Used plugins

    This setup is using the following additional plugins:

    ESLint

    The linter-bundle is using the Flat Configuration Format which was introduced in ESLint v8.

    Beside that, the following additional rules are part of this bundle:

    stylelint

    Beside that 72 stylistic rules has been forked from stylelint@15.11.0, which have been removed in stylelint@16.0.0, are part of this bundle.

    Previously used, but now unmaintained plugins

    Unfortunately a couple of previously used plugins are not regularly maintained or depend on unmaintained third-party code which blocks them from updating, so they don't provide updates for the major releases of the linters (ESLint and Stylelint). For that reason the following plugins are not used anymore:

    If these plugins are maintained again, the plugins will also be used again.

    Install

    Ensure you are using atleast Node.js version 20.9.0/21.1.0.

    npm install linter-bundle --save-dev

    Usage examples

    package.json

    {
      "scripts": {
        "lint": "lint tsc ts sass md audit",
        "lint-different-configurations": "lint tsc --tsconfig=./path1/tsconfig.json tsc --tsconfig=./path2/tsconfig.json ts sass md audit"
      }
    }

    eslint.config.mjs

    import gatsbyConfig from 'linter-bundle/eslint/gatsby.mjs';
    import javascriptConfig from 'linter-bundle/eslint/javascript.mjs';
    // import javascriptLazyConfig from 'linter-bundle/eslint/javascript-lazy.mjs';
    import jestConfig from 'linter-bundle/eslint/jest.mjs';
    import jsdocConfig from 'linter-bundle/eslint/jsdoc.mjs';
    import reactConfig from 'linter-bundle/eslint/react.mjs';
    import storybookConfig from 'linter-bundle/eslint/storybook.mjs';
    import typeDeclarationsConfig from 'linter-bundle/eslint/type-declarations.mjs';
    import workerConfig from 'linter-bundle/eslint/worker.mjs';
    import eslintConfig from 'linter-bundle/eslint.mjs';
    
    export default [
      ...eslintConfig,
      ...gatsbyConfig,
      ...javascriptConfig,
      // ...javascriptLazyConfig,
      ...jsdocConfig,
      ...reactConfig,
      ...storybookConfig,
      ...typeDeclarationsConfig,
      ...workerConfig
      ...jestConfig,
    ]
    Available extends
    Source Description Rules setup
    linter-bundle/eslint.mjs General rule setup. This is also the base for the following specialized rule sets. View
    linter-bundle/eslint/gatsby.mjs Settings for Gatsby-based projects. View
    linter-bundle/eslint/javascript.mjs Strict settings for JavaScript files, which enforces correct types everywhere. View
    linter-bundle/eslint/javascript-lazy.mjs Can be used instead of javascript. It's less strict and allows the any type. View
    linter-bundle/eslint/jest.mjs Settings for projects using Jest. View
    linter-bundle/eslint/jsdoc.mjs Settings for projects using JSDoc comments. View
    linter-bundle/eslint/react.mjs Settings for projects using React comments. View
    linter-bundle/eslint/storybook.mjs Settings for projects using Storybook comments. View
    linter-bundle/eslint/type-declarations.mjs Settings for type declaration files (.d.ts). View
    linter-bundle/eslint/worker.mjs Settings for projects using Web Workers. View

    stylelint.config.js

    export default {
      extends: 'linter-bundle/stylelint.mjs'
    };
    

    .markdownlint.json

    {
      "extends": "node_modules/linter-bundle/markdownlint/base.json"
    }

    .gitignore / .npmignore

    .eslintcache

    .linter-bundle.json / .linter-bundle.mjs / .linter-bundle.js

    linter-bundle supports a couple of additional options, which can be configured in the configuration file, in the root of your project.
    Some of the options are also available as command line arguments (see below).
    The file itself, and any of the options is optional.

    Minimum example configuration (.linter-bundle.json)

    {
      "verbose": true,
      "timing": true,
      "git": true,
      "tsc": {
        "tsconfig": "./tsconfig.lint.json"
      },
      "ts": {
        "tsconfig": "./tsconfig.lint.json",
        "include": ["./included/*.ts"],
        "exclude": ["./excluded/*.ts"],
        "overrides": {
          "general": {
            "no-restricted-globals": {
              "additionalRestrictions": [
                {
                  "name": "fetch",
                  "message": "Use Utils.fetchWithTimeout() instead."
                }
              ]
            },
            "no-restricted-properties": {
              "additionalRestrictions": [
                {
                  "object": "localStorage",
                  "property": "getItem",
                  "message": "Use StorageHelper.getItem() instead."
                }
              ]
            },
            "no-restricted-syntax": {
              "additionalRestrictions": [
                {
                  "selector": "NewExpression[callee.name=\"Blob\"]",
                  "message": "Use BlobHelper.create() instead of new Blob()."
                }
              ]
            },
            "import/order": {
              "additionalExternalPatterns": ["@sentry/*"]
            },
            "@typescript-eslint/naming-convention": {
              "additionalOptions": [
                {
                  "selector": "variable",
                  "modifiers": ["const"],
                  "format": ["camelCase"]
                }
              ]
            }
          },
          "react": {
            "react/forbid-component-props": {
              "allowClassNameFor": ["Checkbox", "Grid", "GridItem", "Button"],
              "allowStyleFor": ["Grid", "GridItem"]
            }
          }
        }
      },
      "sass": {
        "include": ["./included/*.ts"],
        "patternPrefix": "(my-prefix|another-prefix)"
      },
      "md": {
        "include": ["./included/*.md"],
      },
      "audit": {
        "minSeverity": "high",
        "exclude": ["975", "1751"]
      },
      "files": {
        "restrictions": [
          {
            "basePath": "./src",
            "allow": [
              "components/**/index.tsx",
              "utils/{index.ts,lib/[a-z]+([a-zA-Z])?(.spec).ts}"
            ],
            "disallow": [
              "components/NotAllowed/index.tsx"
            ]
          }
        ]
      }
    }

    Maximum example configuration (.linter-bundle.js)

    Click here to see the example configuration with descriptions
    export default {
      /**
       * Same as `--verbose` command line argument.
       * 
       * @type {boolean}
       */
      verbose: true,
    
      /**
       * Same as `--timing` command line argument.
       * 
       * @type {boolean}
       */
      timing: true,
    
      /**
       * Same as `--git` command line argument.
       * 
       * @type {boolean}
       */
      git: true,
    
      /**
       * Configuration, specific to the `tsc` command.
       */
      tsc: {
        /**
         * Same as `--tsconfig` command line argument.
         * 
         * @type {string}
         */
        tsconfig: './tsconfig.lint.json'
      },
    
      /**
       * Configuration, specific to the `ts` command.
       */
      ts: {
        /**
         * `timing` and `git` are the same as in the root node.
         */
        timing: true,
        git: true,
    
        /**
         * Same as `--tsconfig` command line argument.
         * 
         * @type {string}
         */
        tsconfig: './tsconfig.lint.json',
    
        /**
         * Same as `--include` command line argument.
         * 
         * @type {string[]}
         */
        include: ['./included/*.ts'],
    
        /**
         * Same as `--exclude` command line argument.
         * 
         * @type {string[]}
         */
        exclude: ['./excluded/*.ts'],
    
        /**
         * Overrides and extensions for specific ESLint rules.
         */
        overrides: {
          /**
           * Rules that are applied to `linter-bundle/eslint.mjs`.
           */
          general: {
            'no-restricted-globals': {
              /**
               * Extend the `restrictions` of the `no-restricted-globals` rule.
               * 
               * @type {{ name: string; message: string; }[]}
               */
              additionalRestrictions: [
                {
                  name: 'fetch',
                  message: 'Use Utils.fetchWithTimeout() instead.'
                }
              ]
            },
            'no-restricted-properties': {
              /**
               * Extend the `restrictions` of the `no-restricted-properties` rule.
               * 
               * @type {{ object: string; property: string; message: string; }[]}
               */
              additionalRestrictions: [
                {
                  object: 'localStorage',
                  property: 'getItem',
                  message: 'Use StorageHelper.getItem() instead.'
                }
              ]
            },
            'no-restricted-syntax': {
              /**
               * Extend the `restrictions` of the `no-restricted-syntax` rule.
               * 
               * @type {{ selector: string; message: string; }[]}
               */
              additionalRestrictions: [
                {
                  selector: 'NewExpression[callee.name="Blob"]',
                  message: 'Use BlobHelper.create() instead of new Blob().'
                }
              ]
            },
            'import/order': {
              /**
               * Extend the `externalPatterns` of the `import/order` rule.
               *
               * @type {string[]}
               */
              additionalExternalPatterns: ['@sentry/*']
            }
          },
    
          /**
           * Rules that are applied to `linter-bundle/eslint/react.mjs`.
           */
          react: {
            'react/forbid-component-props': {
              /**
               * Allows the `className` property for the specified components.
               *
               * @type {string[]}
               */
              allowClassNameFor: ['Checkbox', 'Grid', 'GridItem', 'Button'],
    
              /**
               * Allows the `style` property for the specified components.
               *
               * @type {string[]}
               */
              allowStyleFor: ['Grid', 'GridItem']
            }
          }
        }
      },
    
      /**
       * Configuration, specific to the `sass` command.
       */
      sass: {
        /**
         * `verbose`, `timing` and `git` are the same as in the root node.
         */
        verbose: true,
        timing: true,
        git: true,
    
        /**
         * Same as `--include` command line argument.
         * 
         * @type {string[]}
         */
        include: ['./included/*.ts'],
    
        /**
         * The prefix used for the 'custom-media-pattern' (`@media (--my-prefix-foo)`) and 'custom-property-pattern' (`var(--my-prefix-bar)`) rule.
         *
         * If not defined, these rules are disabled.
         */
        patternPrefix: '--my-prefix'
      },
    
      /**
       * Configuration, specific to the `audit` command.
       */
      md: {
        /**
         * `git` is the same as in the root node.
         */
        git: true,
    
        /**
         * Same as `--include` command line argument.
         * 
         * @type {string[]}
         */
        include: ['./included/*.ts']
      },
    
      /**
       * Configuration, specific to the `audit` command.
       */
      audit: {
        /**
         * Same as `--min-severity` command line argument.
         * 
         * @type {'info' | 'low' | 'moderate' | 'high' | 'critical'}
         */
        minSeverity: 'high',
    
        /**
         * Same as `--exclude` command line argument.
         * 
         * @type {string[]}
         */
        exclude: ['975', '1751']
      },
    
      /**
       * Configuration, specific to the `files` command.
       */
      files: {
        /**
         * `git` is the same as in the root node.
         */
        git: true,
    
        /**
         * Same as `--include` command line argument.
         * 
         * @type {string[]}
         */
        include: ['./included/*.ts'],
    
        /**
         * Array of restrictions for different base paths.
         *
         * The configuration is equal to the `restricted-filenames` ESLint plugin.
         * This plugin is using the configuration here, if ESLint is used outside of `linter-bundle` (e.g. in VSCode).
         *
         * @see https://github.com/jens-duttke/linter-bundle/blob/main/eslint/rules/restricted-filenames.md
         */
        restrictions: [
          {
            /**
             * Same as `--exclude` command line argument.
             * 
             * @type {string}
             */
            basePath: './src',
    
            /**
             * Glob pattern Same as `--exclude` command line argument.
             * 
             * @type {string[]}
             */
            allow: [
              'components/**/index.tsx',
              'utils/{index.ts,lib/[a-z]+([a-zA-Z])?(.spec).ts}'
            ],
    
            /**
             * Same as `--exclude` command line argument.
             * 
             * @type {string[]}
             * 
             */
            disallow: [
              'components/NotAllowed/index.tsx'
            ]
          }
        ]
      }
    }

    Available commands

    The command line arguments are separated in groups. Here are some examples:

    # Run File restrictions, TypeScript compiler, ESLint, Stylelint, Markdownlint, and audit in the given order, using the default configuration
    lint files tsc ts sass md audit
    
    # Run ESLint and Audit, and show their terminal output even on success
    lint --verbose ts audit
    
    # Run ESLint and Audit, and show the ESLint terminal output even on success
    lint ts --verbose audit
    
    # Run TypeScript compiler and ESLint, but with different tsconfig.json files
    lint tsc --tsconfig=./cypress/tsconfig.json ts --tsconfig=./.storybook/tsconfig.json
    
    # Run TypeScript compiler twice with different configurations
    lint tsc tsc --tsconfig="./cypress/tsconfig.json"

    Below, you can find the available command line arguments and what they are doing.

    General optional command line arguments

    Argument Description Example
    --verbose By default, the terminal output of linters is only shown if an error occurs. Use this option to show their terminal output even on success. --verbose
    --timing Show information how long each linting process was running. --timing
    --git Experimental Only lint (ESLint, Stylelint and Markdownlint) files which have been detected as changed (compared to the upstream branch) by Git. This can result into massive performance improvements on large code bases, but also lead to undetected issues with cross-file rules. --git

    lint files

    Will check if the files in the project match the restrictions defined in the linter-bundle configuration file.

    lint tsc

    Will execute:

    tsc --skipLibCheck --noEmit

    Optional command line arguments for lint tsc

    Argument Description Example
    --tsconfig Allows to specifiy a different tsconfig.json file. --tsconfig=./cypress/tsconfig.json

    lint ts

    Will execute:

    eslint "./**/*.{js,cjs,mjs,jsx,ts,cts,mts,tsx}" --format unix

    Additionally, the environment variable TIMING is set to 10, to show timing information about the 10 slowest rules.

    Optional command line arguments for lint ts

    Argument Description Example
    --tsconfig Allows to specifiy a different tsconfig.json file. --tsconfig=./cypress/tsconfig.json
    --include Patterns with files which should be considered --include="./cypress/**/*.ts"
    --exclude Patterns with files which should not be considered. Can be used multiple times for different patterns. Used as --ignore-pattern argument for ESLint. --exclude="cypress" --exclude=".storybook"

    lint sass

    Will execute:

    stylelint "src/**/*.scss" --formatter unix --report-needless-disables --report-invalid-scope-disables --report-descriptionless-disables

    lint md

    Will execute:

    markdownlint **/*.md --ignore node_modules

    lint audit

    If a package.json exist, it will execute:

    better-npm-audit audit -l moderate -p

    If a yarn.lock exist, it will execute:

    improved-yarn-audit --min-severity moderate --fail-on-missing-exclusions --ignore-dev-deps

    Optional command line arguments for lint audit

    Argument Description Example
    --min-severity Minimum severity to treat as an error, default is moderate (info, low, moderate, high, critical). Used as -l argument for better-npm-audit, and --min-severity argument for improved-yarn-audit. --min-severity=moderate
    --exclude Comma-separated list of advisory IDs to ignore. Used as -i argument for better-npm-audit, and --exclude argument for improved-yarn-audit. --exclude=118,577

    VSCode setup

    ESLint

    For VSCode I recommend the ESLint extension.

    To ensure the ESLint plugins are correctly loaded, you need to adjust the settings of this plugin.

    This can be done by adding these options to your .vscode/settings.json:

    {
      "eslint.nodePath": "./node_modules/linter-bundle/node_modules/eslint",
      "eslint.options": {
        "overrideConfigFile": "./eslint.config.mjs"
      }
    }

    If the ESLint extension shows the following message on the bottom-right:

    https://cdn.jsdelivr.net/gh/jens-duttke/linter-bundle@f7d514f/vscode-eslint-1.png

    Click on "Select Node Path". A selection popup will appear at the top of the editor:

    https://cdn.jsdelivr.net/gh/jens-duttke/linter-bundle@f7d514f/vscode-eslint-2.png

    Here, choose the option "Use NODE_PATH value defined via setting".

    stylelint

    For VSCode I recommend the stylelint extension.

    To ensure the stylelint plugins are correctly loaded, you need to adjust the settings of this plugin in your .vscode/settings.json:

    {
      "stylelint.enable": true,
      "stylelint.validate": [
        "scss"
      ],
      "css.validate": false,
      "less.validate": false,
      "scss.validate": false
    }

    Auto-fix code on save

    In order to fix the code according to the ESLint/stylelint rules when saving, the following settings can be added to your .vscode/settings.json:

    {
      "editor.codeActionsOnSave": {
        "source.fixAll.eslint": true,
        "source.fixAll.stylelint": true
      }
    }

    Rulers

    To visualize the max line-length rules in VSCode, you can activate rulers, by adding the following settings to your .vscode/settings.json:

    {
      "[javascript]": {
        "editor.rulers": [300]
      },
      "[markdown]": {
        "editor.rulers": [300]
      },
      "[scss]": {
        "editor.rulers": [160]
      },
      "[typescript]": {
        "editor.rulers": [300]
      },
      "[typescriptreact]": {
        "editor.rulers": [300]
      }
    }

    FAQ

    How to solve the problem Parsing error: "parserOptions.project" has been set for @typescript-eslint/parser. ?

    If you get such an error message:

    Parsing error: "parserOptions.project" has been set for @typescript-eslint/parser.
    The file does not match your project config: [any-name].js.
    The file must be included in at least one of the projects provided.

    the problem is most likely, that your tsconfig.json does not cover your JavaScript files and that you don't have a jsconfig.json file in your root directory. This is required by the @typescript-eslint to use TypeScript for linting of JavaScript files.

    To solve this problem, either "include" your JavaScript files in your tsconfig.json (don't forget to set the compiler option "checkJs" to true) or create a jsconfig.json file in your root directory (this can be a copy of your tsconfig.json with an "include" of your JavaScript files).