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eslint-plugin-wizardry-fsd

v0.2.0

Published

Plugin for checking imports path in FSD project

Downloads

10

Readme

eslint-plugin-wizardry-fsd

WIP: Use with caution, the project may not be properly tested.

Plugin for checking import paths in FSD project.

Table of Contents:

Installation

npm i -D eslint eslint-plugin-wizardy-fsd

Supported Rules

  • slice-relative-path

    Imports within one slice should be relative.

    // .
    // └── 📂src/
    //     └── 📂features/                   # FSD layer
    //         └── 📂your-cool-feature/      # FSD slice
    //             ├── 📃file1.ts
    //             └── 📃file2.ts
    
    // file: src/features/your-cool-feature/file1
    
    // Examples of incorrect code for this rule:
    import { CoolFeature } from '~/features/your-cool-feature';
    import { CoolFeature } from '@/features/your-cool-feature';
    import { CoolFeature } from '@features/your-cool-feature';
    import { CoolFeature } from '$features/your-cool-feature';
    import { CoolFeature } from 'features/your-cool-feature';
    
    // Examples of correct code for this rule:
    import { CoolFeature } from '.file2';
  • public-api-imports

    Absolute imports should be only from public API.

    // .
    // └── 📂src/
    //     ├── 📂features/                   # FSD layer
    //     │   └── 📂your-cool-feature/      # FSD slice
    //     │       ├── 📃file1.ts
    //     │       └── 📃file2.ts
    //     └── 📂entities/                   # FSD layer
    //         └── 📂your-important-entity/  # FSD slice
    //             ├── 📂model/
    //             │   └── 📃file3.ts
    //             └── 📃index.ts
    
    // file: src/features/your-cool-feature/file1
    
    // Examples of incorrect code for this rule:
    import { ImportantEntity } from 'entities/your-important-entity/model/file3';
    
    // Examples of correct code for this rule:
    import { ImportantEntity } from 'entities/your-important-entity';
    
    // Output
    // Absolute import is allowed only from public API (index.ts) https://feature-sliced.design/docs/reference/public-api
  • layer-imports

    Modules on one layer can only interact with modules from the layers strictly below.

    // .
    // └── 📂src/
    //     ├── 📂features/                   # FSD layer
    //     │   └── 📂your-cool-feature/      # FSD slice
    //     │       ├── 📃file1.ts
    //     │       └── 📃file2.ts
    //     │       └── 📃index.ts
    //     └── 📂entities/                   # FSD layer
    //         └── 📂your-important-entity/  # FSD slice
    //             ├── 📃file3.ts
    //             └── 📃index.ts
    
    // file: src/entities/your-important-entity/file3
    
    // Examples of incorrect code for this rule:
    import { CoolFeature } from 'features/your-cool-feature/model';
    
    // Output:
    // Entities layer can import only below layers: (shared) https://feature-sliced.design/docs/reference/layers
  • complex (recommended)

    All rules above are executed in a single thread, which provides more accurate problem definition.

    // .
    // └── 📂src/
    //     └── 📂features/                   # FSD layer
    //         └── 📂your-cool-feature/      # FSD slice
    //             ├── 📃file1.ts
    //             └── 📃file2.ts
    
    // file: src/features/your-cool-feature/file2
    import { File1 } from 'features/your-cool-feature/file1';
    
    // Output if you use the rules separately:
    
    // Within one slice all paths should be relative                                                                                        wizardry-fsd/slice-relative-path
    // Views layer can import only below layers: (widgets, features, entities, shared) https://feature-sliced.design/docs/reference/layers  wizardry-fsd/layer-imports
    // Absolute import is allowed only from public API (index.ts) https://feature-sliced.design/docs/reference/public-api                   wizardry-fsd/public-api-imports
    
    // Output if you use complex rule:
    // Within one slice all paths should be relative  wizardry-fsd/complex

Rules options

Common options for all rules

  • pagesFolderRename Useful when we can't use the default folder name for example due to framework limitations like in Next.js
    Default: "pages"
    {
      "rules": {
        "wizardry-fsd/layer-imports": [
          "error",
          {
            "pagesFolderRename": "views"
          }
        ]
      }
    }

layer-imports options

  • entitiesCrossImport Allows you to import an entity into another entity.
    Default: false
    {
      "rules": {
        "wizardry-fsd/layer-imports": [
          "error",
          {
            "entitiesCrossImport": true
          }
        ]
      }
    }
  • ignoreImportPatterns Array of glob path templates to ignore of rule.
    Default: [ ]
    {
      "rules": {
        "wizardry-fsd/layer-imports": [
          "error",
          {
            "ignoreImportPatterns": ["**/StoreProvider", "**/*.test.*"]
          }
        ]
      }
    }

public-api-imports options

  • sharedImportFromAny Allows you to import from shared as you want, not just from the public api.
    Default: false
    {
      "rules": {
        "wizardry-fsd/public-api-imports": [
          "error",
          {
            "sharedImportFromAny": true
          }
        ]
      }
    }

⚠️ You can use all above rules without duplications in wizardry-fsd/complex

{
  "rules": {
    "wizardry-fsd/complex": [
      "error",
      {
        "pagesFolderRename": "views",
        "entitiesCrossImport": true,
        "sharedImportFromAny": true,
        "ignoreImportPatterns": ["**/StoreProvider", "**/*.test.*"]
      }
    ]
  }
}

Setup

Automatic

To use pre-built configurations, you need to add one of the following line to extends:

  • default
    {
      "extends": ["plugin:wizardry-fsd/default"]
    }
    which is similar to the following:
    {
      "plugins": ["wizardry-fsd"],
      "rules": {
        "wizardry-fsd/complex": [
          "error",
          {
            "sharedImportFromAny": true
          }
        ]
      }
    }
  • next
    {
      "extends": ["plugin:wizardry-fsd/next"]
    }
    which is similar to the following:
    {
      "plugins": ["wizardry-fsd"],
      "rules": {
        "wizardry-fsd/complex": [
          "error",
          {
            "pagesFolderRename": "views",
            "sharedImportFromAny": true
          }
        ]
      }
    }

Manual

Add wizardy-fsd to the plugins section of your .eslintrc configuration file:

{
  "plugins": ["wizardy-fsd"]
}

Then configure the rules you want to use under the rules section.

{
  "rules": {
    "wizardry-fsd/slice-relative-path": [
      "error",
      {
        "pagesFolderRename": "views"
      }
    ],
    "wizardry-fsd/layer-imports": [
      "error",
      {
        "pagesFolderRename": "views",
        "ignoreImportPatterns": ["**/StoreProvider", "**/*.test.*"],
        "entitiesCrossImport": true
      }
    ],
    "wizardry-fsd/public-api-imports": [
      "error",
      {
        "pagesFolderRename": "views",
        "sharedImportFromAny": true
      }
    ]
  }
}