omni-file

Omni-file is a comprehensive file information extractor that provides language, icon, type, and MIME information for any file based on its name or extension. With over 1000 icons, support for more than 700 programming languages, and only 79.4 kB gzipped, it's both powerful and lightweight!

It leverages GitHub Linguist data and Material Icon Theme for up-to-date and accurate file type detection and icons. The data is regularly updated to ensure the latest language and icon information.

Table of Contents

• Features
• Installation
• API
• Examples
• Icon Themes
• Development
• Contributing
• License
• Acknowledgments

Features

• Lightweight: only 79.4 kB gzipped
• Over 1000 icons covering a wide range of file types, extensions, and folder names, using Material Icon Theme
• Accurate language detection for over 700 programming languages, using GitHub Linguist
• Comprehensive file information including type, color, aliases, and more
• Smart extraction of filename or extension
• Always up-to-date through automated processes to ensure the latest data

Installation

Install omni-file from npm:

npm install omni-file
pnpm add omni-file
yarn add omni-file

API

Core functions:

• getLanguage(filename: string): Language
• getIcon(filename: string, options?: IconOptions): string

Utility functions:

• getBaseFilenameFromRelativePath(filePath: string): string
• getExtensionsFromRelativePath(filePath: string): string[]

Type definitions:

• LanguageData: Detailed information about a programming language

• LanguageWithIconsData: Extends LanguageData with icon information

• IconOptions: Options for icon retrieval (isFolder, isExpanded, isLight)

• LanguagesJSON: A record of language names to LanguageData objects

• LanguagesWithIconsJSON: A record of language names to LanguageWithIconsData objects

• ExtensionMapJSON: Maps file extensions to language names

• FileNamesMapJSON: Maps specific filenames to language names

• IconsJSON: Defines icon associations for files and folders

Raw data:

• languages: A map of all languages with icons
• extensionMap: Maps file extensions to language names
• fileNamesMap: Maps specific filenames to language names
• icons: Default icon set (dark theme)
• iconsLight: Light theme icon set (has less icons then dark theme)

Examples

Examples of getIcon

import { getIcon } from "omni-file";

console.log(getIcon("example.js")); // Output: 'javascript'
console.log(getIcon("styles.css")); // Output: 'css'
console.log(getIcon("data.json")); // Output: 'json'
console.log(getIcon("package.json")); // Output: 'nodejs'
console.log(getIcon("Dockerfile")); // Output: 'docker'
console.log(getIcon(".gitignore")); // Output: 'git'
console.log(getIcon("src", { isFolder: true })); // Output: 'folder-src'
console.log(getIcon("node_modules", { isFolder: true })); // Output: 'folder-node'
console.log(getIcon("tests", { isFolder: true, isExpanded: true })); // Output: 'folder-test-open'
console.log(getIcon("vercel.json", { isLight: true })); // Output: 'vercel_light'
console.log(getIcon("example.test.js")); // Output: 'test-js'
console.log(getIcon("component.spec.ts")); // Output: 'test-ts'
console.log(getIcon(path.join("src", "components", "Button.tsx"))); // Output: 'react_ts'
console.log(getIcon(path.join("tests", "unit", "utils.test.js"))); // Output: 'test-js'
console.log(getIcon(".eslintrc.json")); // Output: 'eslint'
console.log(getIcon(".prettierrc")); // Output: 'prettier'
console.log(getIcon("tsconfig.json")); // Output: 'tsconfig'
console.log(getIcon("README.md")); // Output: 'readme'
console.log(getIcon("readme.md")); // Output: 'readme'
console.log(getIcon("DockerFile")); // Output: 'docker'
console.log(getIcon("dockerfile")); // Output: 'docker'

Example with language

import { getLanguage } from "omni-file";

console.log(getLanguage("folder/example.ts"));

Output:

{
  "type": "programming",
  "color": "#3178c6",
  "aliases": ["ts"],
  "interpreters": ["deno", "ts-node", "tsx"],
  "extensions": [".ts", ".cts", ".mts"],
  "tm_scope": "source.ts",
  "ace_mode": "typescript",
  "codemirror_mode": "javascript",
  "codemirror_mime_type": "application/typescript",
  "language_id": 378,
  "name": "TypeScript",
  "icons": ["typescript", "javascript"]
}

Note that you can also get icons from getLanguage by using getLanguage(filename)?.icons but the answer may be less accurate. (folder icons are not included this way)

Example implementation of getIcon

import { getIcon } from "omni-file";

const icon = getIcon("folder/example.ts"); // "typescript"
const svgUrl = `node_modules/omni-file/icons/${icon}.svg`;

<img src={svgUrl} alt={icon} />;

Output:

Example using raw data

import { languages, icons } from "omni-file";

console.log(languages["JavaScript"].extensions); // -> [ ".js",".cjs",".es",".jsm", ... ]
console.log(icons.fileExtensions["js"]); // -> "javascript"

Icon Themes

Omni-file provides two icon sets:

1. Dark Theme: Default icon set for dark-themed environments.
2. Light Theme: Optimized icon set for light-themed environments. Note that this set has fewer icons then the dark theme but the function will fallback to the dark theme if the light themed icon is not found.

You can switch between these themes based on your application's needs:

import { getIcon, IconTheme } from "omni-file";

const darkIcon = getIcon("example.ts", { isLight: false });
const lightIcon = getIcon("example.ts", { isLight: true });

Development

To set up the project for development:

1. Clone the repository
2. Install dependencies:

   pnpm install

3. Run the data update script:

   pnpm run update-data

4. Build the project:

   pnpm run build

5. Run tests:

   pnpm test

package.json scripts

• build: Builds the project using tsup
• build:watch: Watches for changes and rebuilds
• test: Runs the test suite
• test:coverage: Runs tests with coverage reporting
• update-data: Updates the Linguist data
• postinstall: Automatically updates data after installation

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

1. Fork the repository
2. Create your feature branch (git checkout -b feature/AmazingFeature)
3. Commit your changes (git commit -m 'Add some AmazingFeature')
4. Push to the branch (git push origin feature/AmazingFeature)
5. Open a Pull Request

License

This project is licensed under the MIT License - see the LICENSE file for details.

Acknowledgments

• This project uses languages data from GitHub Linguist
• Icon data is based on Material Icon Theme