This is a simple example of compiling a proto def to C. The idea is that I need to make a message that looks like 2.1.1.1:string (for getItems calls.)

usage

import createMessage from './protoencoder.mjs'

const msg = createMessage('com.jagex.oldscape.android')

building

I have setup some build-targets that require docker:

npm run gen   # just generate the C source-code
npm run build # just build the wasm (and gen first)
npm test      # test that the lib encodes stuff (gen/build first)

docker

You can use docker, if you don't want to install things on the host:

# generate C bindings
docker run -it --rm -v $(pwd):/src rvolosatovs/protoc --c_out=/src -I/src/ message.proto

# config
docker run --rm -v $(pwd):/src -u $(id -u):$(id -g) emscripten/emsdk emcmake cmake -B build

# build
docker run --rm -v $(pwd):/src -u $(id -u):$(id -g) emscripten/emsdk cmake --build build

bare system

To compile it, you will need emscripten & protoc.

# generate C bindings
protoc --c_out=. message.proto

# config
emcmake cmake -GNinja -B build

# build
cmake --build build