version: '3.4'

services:
  cross-rpi-rust: &cross-rust-env
    image: rust:1.36.0-buster
    container_name: cross-rpi-rust
    environment:
      TARGET_ARCH: 'arm-unknown-linux-gnueabihf'
      LIBCLANG_INCLUDE_PATH: '/usr/include/clang/7/include'
      PKG_CONFIG_PATH: '/usr/lib/arm-linux-gnueabihf/pkgconfig'
      PKG_CONFIG_ALLOW_CROSS: 1
    volumes:
      - .:/tmp/libv4l_sys
      - cargo-cache:/tmp/.cargo
    working_dir: /tmp/libv4l_sys

  # build project for RaspberryPi
  cross-build:
    << : *cross-rust-env
    command: |
      bash -c "
      dpkg --add-architecture armhf
      apt-get update -y
      apt-get install -y libv4l-dev:armhf libclang-common-7-dev:armhf libclang-7-dev:armhf
      apt-get install -y gcc-arm-linux-gnueabihf libclang-7-dev
      rustup target add $${TARGET_ARCH}
      cargo build --target=$${TARGET_ARCH}
      cargo build --target=$${TARGET_ARCH} --example v4l2grab
      "


volumes:
  cargo-cache: