Leaf

Leaf CI

A fake file system for Deno binaries by Mandarine.

Description

Leaf is a fake file system for Deno binaries. This means, you can save your files along with the binary generated by deno compile, this way, you can put all your files together in a single executable which leads to easier deployments and a more compacted deliverable output.

Usage

To use Leaf in your application, you must use the Leaf File System APIs instead of Deno’s.

compile

The compile method is responsible for creating a binary with your resources in it. compile takes one argument which is the options to include.

import { Leaf } from "https://deno.land/x/leaf@v1.0.1/mod.ts";

Leaf.compile({
    modulePath: "./myEntryPoint.ts",
    contentFolders: ["./resources"]
})

modulePath and contentFolders are necessary.

  • modulePath: File to be compiled into a binary.
  • contentFolders: Folders to be attached to the binary.

readFileSync

Synchronously reads and returns the entire contents of a file as an array of bytes. TextDecoder can be used to transform the bytes to string if required. Reading a directory returns an empty data array.

import { Leaf } from "https://deno.land/x/leaf@v1.0.1/mod.ts";

const decoder = new TextDecoder("utf-8");
const data = Leaf.readFileSync("hello.txt");
console.log(decoder.decode(data));

readFile

Reads and returns the entire contents of a file as an array of bytes. TextDecoder can be used to transform the bytes to string if required. Reading a directory returns an empty data array.

import { Leaf } from "https://deno.land/x/leaf@v1.0.1/mod.ts";

const decoder = new TextDecoder("utf-8");
const data = await Leaf.readFile("hello.txt");
console.log(decoder.decode(data));

readTextFileSync

Synchronously reads and returns the entire contents of a file as utf8 encoded string.

import { Leaf } from "https://deno.land/x/leaf@v1.0.1/mod.ts";

const data = Leaf.readTextFileSync("hello.txt");
console.log(data);

readTextFile

Reads and returns the entire contents of a file as utf8 encoded string.

import { Leaf } from "https://deno.land/x/leaf@v1.0.1/mod.ts";

const data = await Leaf.readTextFile("hello.txt");
console.log(data);

Example

file1.ts:

import { Leaf } from "https://deno.land/x/leaf@v1.0.1/mod.ts";

Leaf.compile({
    modulePath: "./myEntryPoint.ts",
    contentFolders: ["./resources"]
})

./resources/text.txt

Hello World

myEntryPoint.ts:

import { Leaf } from "https://deno.land/x/leaf@v1.0.1/mod.ts";

console.log(Leaf.readTextFileSync("./resources/text.txt"));
deno run --allow-all --unstable _myEntryPoint.ts
./myEntryPoint (.exe if windows)
# output: Hello World

Questions

For questions & community support, please visit our Discord Channel or join us on our twitter.

Want to help?

Interested in coding

In order to submit improvements to the code, open a PR and wait for it to review. We appreciate you doing this.

Not interested in coding

We would love to have you in our community, please submit an issue to provide information about a bug, feature, or improvement you would like.

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