Place C bindings behind `ffi` feature flag, add FFI CI #510

	name: CI

	on:
	push:
	branches: [ main ]
	pull_request:
	branches: [ main ]

	env:
	CARGO_TERM_COLOR: always

	jobs:
	lint:
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v3
	- run: cargo fmt --all -- --check
	- run: cargo clippy --all

	docs:
	name: cargo doc
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	- run: RUSTDOCFLAGS="-D warnings --cfg docsrs" cargo doc --workspace --no-deps --all-features

	test:
	name: test
	strategy:
	fail-fast: false
	matrix:
	os:
	- ubuntu-latest
	- macos-latest
	- windows-latest

	runs-on: ${{ matrix.os }}

	steps:
	- uses: actions/checkout@v3
	- name: Build
	run: cargo build --verbose
	- name: Run tests
	run: cargo test --verbose

	ffi:
	name: ffi
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	- name: Install cbindgen
	run: cargo install --force cbindgen
	- name: Build (with feature falg)
	run: cargo build --verbose --features="ffi"
	- name: Generate C header file
	run: cbindgen --config cbindgen.toml --crate rsdd --output rsdd.h
	- name: Compile sample .c file
	run: gcc scripts/main.c -o main -lrsdd -L./target/debug
	- name: Run main file
	run: ./main

	wasm:
	name: wasm
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	- name: Install wasm-pack
	run: curl https://rustwasm.github.io/wasm-pack/installer/init.sh -sSf \| sh
	- name: Build
	run: wasm-pack build

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