Npm4nix ======= Npm4nix converts Node.js packages into a single Nix build expression for the [Npm.nix](https://github.com/ip1981/npm.nix) project. Npm4nix is inspired by [Cabal2nix](https://github.com/NixOS/cabal2nix). Unfortunately, [npm2nix](https://github.com/NixOS/npm2nix) is already taken :) Thus, `npm4nix`. It supports local directories and tarballs (e. g. `*.tgz`), remote tarballs, remote [Git](https://git-scm.com/) respositories. Requirements ============ Npm4nix is written in JavaScript with minimum number of depednecies and should be executed by [Node.js](https://nodejs.org). Npm4nix invokes [curl](https://curl.haxx.se/), Git, [GNU Tar](https://www.gnu.org/software/tar/), and [nix-hash](https://nixos.org/nix/manual/#sec-nix-hash), so these tools should be installed. Example ======= ``` $ node cmd/main.js https://github.com/substack/node-mkdirp.git > mkdirp.nix executing git clone 'https://github.com/substack/node-mkdirp.git' '/tmp/npm4nix-Feo4WM' Cloning into '/tmp/npm4nix-Feo4WM'... executing git -C '/tmp/npm4nix-Feo4WM' rev-parse HEAD executing nix-hash --base32 --type sha256 '/tmp/npm4nix-Feo4WM' $ cat mkdirp.nix { fetchgit, buildNpmPackage, minimist, mock-fs, tap }: buildNpmPackage { pname = "mkdirp"; version = "0.5.1"; src = fetchgit { url = "https://github.com/substack/node-mkdirp.git"; rev = "f2003bbcffa80f8c9744579fabab1212fc84545a"; sha256 = "0qc3l6571aknhlmzcyaah3plmf852cl160jihy3l4b05j25qv45a"; }; meta = { description = "Recursively mkdir, like `mkdir -p`"; homepage = ""; license = "MIT"; }; npmInputs = [ minimist mock-fs tap ]; } ``` ``` $ node cmd/main.js https://github.com/cowboy/javascript-sync-async-foreach/archive/v0.1.3.tar.gz > async-foreach.nix executing curl -LsSf -o '/tmp/npm4nix-zwGeOX/v0.1.3.tar.gz' 'https://github.com/cowboy/javascript-sync-async-foreach/archive/v0.1.3.tar.gz' executing nix-hash --flat --base32 --type sha256 '/tmp/npm4nix-zwGeOX/v0.1.3.tar.gz' executing tar -xOf '/tmp/npm4nix-zwGeOX/v0.1.3.tar.gz' --wildcards '*/package.json' $ cat async-foreach.nix { fetchurl, buildNpmPackage }: buildNpmPackage { pname = "async-foreach"; version = "0.1.3"; src = fetchurl { url = "https://github.com/cowboy/javascript-sync-async-foreach/archive/v0.1.3.tar.gz"; sha256 = "1b7h2fgj6rndkviyx1hl0mh72d60a2b2f1sl86ndk8vdvr6mxmj3"; }; meta = { description = "An optionally-asynchronous forEach with an interesting interface."; homepage = "http://github.com/cowboy/javascript-sync-async-foreach"; license = ""; }; npmInputs = [ ]; } ```