nix-base64

Base64 encode and decode functions in pure Nix.

Overview

This repository provides two Nix functions.

• lib.toBase64 :: String -> String
• lib.fromBase64 :: String -> String

Additionally, a default overlay is available (see examples below).

Note

The toBase64 function only supports ASCII inputs.

Examples

If you want to use these functions interactively.

nix-repl> :lf github:3nol/nix-base64

If you want to include this lib and/or update <nixpkgs/lib> in your flake.

{
  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
    nix-base64.url = "github:3nol/nix-base64";
  };

  outputs = { self, nixpkgs, nix-base64, ... }:
  let
    system = "x86_64-linux";

    pkgs = import nixpkgs {
      inherit system;
      overlays = [ nix-base64.overlays.default ];
    };
  in
  {
    # You can use your updated `pkgs.lib` here.
  };
}

Credits

The function for encoding to Base64 is heavily inspired by "https://gist.github.com/manveru/74eb41d850bc146b7e78c4cb059507e2". I extracted common functionality from their implementation and added an analogous function for decoding.