gen-fs

Library functions to seamlessly generate directories and files at the specified path using a JavaScript object that maps to the desired filesystem tree. Includes support for the ES Explicit Resource Management spec and using keyword.

Examples

Basic usage of genFs

await genFs({
  "dist/index.html": "<h1>Hello genFs!</h1>",
  "dist/styles.css": "* { font-size: 2rem; }",
  "dist/main.js": "console.log('hello world')",
}, { rootDir: "dist" });

Creates the following:

.
└── dist
    ├── index.html
    ├── main.js
    └── styles.css

Cleanup after using

async function run() {
  await using tmpFs = await genFs({
    "dist": {
      "css/main.css": "",
      "js/main.js": ""
      "index.html": ""
    }
  }, { rootDir: "dist", cleanup: true });

  // ... do something ...

  // Removes `dist/` before returning
}

Generating files/dirs for testing using genTmpFs

This package also exports genTmpFs that automatically creates a temp dir where your filesystem is generated and cleans up afterward via using keyword.

Deno.test("my test", async () => {
  await using tmpFs = await genTmpFs({
    "dist/index.html": "<h1>Hello genFs!</h1>",
    "dist/styles.css": "* { font-size: 2rem; }",
    "dist/main.js": "console.log('hello world')",
  });

  console.log(tmpFs.tmpDir);

  // ACT

  // Removes the tmp dir before returning
});

TODOs

• Add documentation via JSDoc comments
• Add more test cases
• Make package compatible with node/bun
• Publish to JSR and npm
• Chores
  • Add git hooks to fmt/lint check
  • Enforce conventional commits
  • Setup CI for PRs
  • Setup CI/CD for publishing using semantic release (or equivalent)