This repo contains various support-things for null0:

• api definition
• codegen for host
• codegen for cart-headers for every supported language
• example carts for every supported language
• docker definitions for cart builders

to use this repo

• You will need docker installed
• volume-mount your cart in /src
• volume-mount your output-dir in /out
• the first param is the name of the cart
• put any filenames you don't want packaged in your cart, in .cartignore (.gitignore syntax)

available containers

• konsumer/null0-cart-c
• konsumer/null0-cart-quickjs
• konsumer/null0-cart-nelua
• konsumer/null0-cart-assemblyscript
• konsumer/null0-cart-nim

I haven't finished demos/headers/etc for these:

• konsumer/null0-cart-zig
• konsumer/null0-cart-rust
• konsumer/null0-cart-py2wasm

example usage

# build a cart from main.c (and assets) in current dir, output to ~/Desktop/tester.null0
docker run -it -v .:/src -v ~/Desktop:/out konsumer/null0-cart-c tester

usage in Github CI to build your cart for you

you can easily use it in Github Actions:

# github/workflows/publish.yml

on: push

jobs:
  build:
    name: Build & Publish Cart
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - name: Build C Cart
        run: docker run -v .:/src -v .:/out konsumer/null0-cart-c tester
      - name: Upload cart artifact
        uses: actions/upload-artifact@v4
        with:
          name: tester
          path: tester.null0

development

This is really just notes for me:

# 1-time setup
docker buildx create --name multiarch --driver docker-container --bootstrap
docker buildx use multiarch
docker run --privileged --rm tonistiigi/binfmt --install all

# generate headers (needed on API change)
npm i
npm run gen

# just local use (fast, no push)
docker build -t konsumer/null0-cart-c . -f docker/null0-cart-c.Dockerfile
docker build -t konsumer/null0-cart-quickjs . -f docker/null0-cart-quickjs.Dockerfile
docker build -t konsumer/null0-cart-assemblyscript . -f docker/null0-cart-assemblyscript.Dockerfile
docker build -t konsumer/null0-cart-nelua . -f docker/null0-cart-nelua.Dockerfile
docker build -t konsumer/null0-cart-nim . -f docker/null0-cart-nim.Dockerfile

# build & publish (needed on API change)
docker build  --push --platform linux/amd64,linux/arm64 -t konsumer/null0-cart-c . -f docker/null0-cart-c.Dockerfile
docker build  --push --platform linux/amd64,linux/arm64 -t konsumer/null0-cart-quickjs . -f docker/null0-cart-quickjs.Dockerfile
docker build  --push --platform linux/amd64,linux/arm64 -t konsumer/null0-cart-assemblyscript . -f docker/null0-cart-assemblyscript.Dockerfile
docker build  --push --platform linux/amd64,linux/arm64 -t konsumer/null0-cart-nelua . -f docker/null0-cart-nelua.Dockerfile
docker build  --push --platform linux/amd64,linux/arm64 -t konsumer/null0-cart-nim . -f docker/null0-cart-nim.Dockerfile

# test
docker run -it -v ./carts/c/colorbars:/src -v ./out:/out konsumer/null0-cart-c colorbars_c
docker run -it -v ./carts/c/example:/src -v ./out:/out konsumer/null0-cart-c example_c
docker run -it -v ./carts/c/gradient:/src -v ./out:/out konsumer/null0-cart-c gradient_c
docker run -it -v ./carts/c/input:/src -v ./out:/out konsumer/null0-cart-c input_c
docker run -it -v ./carts/c/sfx:/src -v ./out:/out konsumer/null0-cart-c sfx_c
docker run -it -v ./carts/c/speak:/src -v ./out:/out konsumer/null0-cart-c speak_c
docker run -it -v ./carts/c/wasi_demo:/src -v ./out:/out konsumer/null0-cart-c wasi_demo_c

docker run -it -v ./carts/js/demo:/src -v ./out:/out konsumer/null0-cart-quickjs demo_js
docker run -it -v ./carts/js/input:/src -v ./out:/out konsumer/null0-cart-quickjs input_js

docker run -it -v ./carts/as/simple:/src -v ./out:/out konsumer/null0-cart-assemblyscript simple_as

docker run -it -v ./carts/nelua/basic:/src -v ./out:/out konsumer/null0-cart-nelua basic_nelua
docker run -it -v ./carts/nelua/colorbars:/src -v ./out:/out konsumer/null0-cart-nelua colorbars_nelua

docker run -it -v ./carts/nim/simple:/src -v ./out:/out konsumer/null0-cart-nim simple_nim