sudo: required
services:
  - docker
language: go
go:
  - "1.10"
env:
  - PROGRAM=frontend    IMAGE_NAME=bird-lg-go       IMAGE_ARCH=i386
  - PROGRAM=frontend    IMAGE_NAME=bird-lg-go       IMAGE_ARCH=amd64
  - PROGRAM=frontend    IMAGE_NAME=bird-lg-go       IMAGE_ARCH=arm32v7
  - PROGRAM=frontend    IMAGE_NAME=bird-lg-go       IMAGE_ARCH=arm64v8
  - PROGRAM=proxy       IMAGE_NAME=bird-lgproxy-go  IMAGE_ARCH=i386
  - PROGRAM=proxy       IMAGE_NAME=bird-lgproxy-go  IMAGE_ARCH=amd64
  - PROGRAM=proxy       IMAGE_NAME=bird-lgproxy-go  IMAGE_ARCH=arm32v7
  - PROGRAM=proxy       IMAGE_NAME=bird-lgproxy-go  IMAGE_ARCH=arm64v8

install:
  - docker run --rm --privileged multiarch/qemu-user-static:register --reset
  - echo "$DOCKER_PASSWORD" | docker login -u "$DOCKER_USERNAME" --password-stdin
  - sudo apt-get install -y upx

script:
  - |
    # Translate to alternative arch names used in multiarch images
    if [ "$IMAGE_ARCH" == "amd64"   ]; then IMAGE_ARCH_ALT=amd64  ; fi
    if [ "$IMAGE_ARCH" == "i386"    ]; then IMAGE_ARCH_ALT=i386   ; fi
    if [ "$IMAGE_ARCH" == "arm32v7" ]; then IMAGE_ARCH_ALT=armhf  ; fi
    if [ "$IMAGE_ARCH" == "arm64v8" ]; then IMAGE_ARCH_ALT=aarch64; fi

    # Translate to alternative arch names used in golang
    if [ "$IMAGE_ARCH" == "amd64"   ]; then IMAGE_ARCH_GO=amd64; fi
    if [ "$IMAGE_ARCH" == "i386"    ]; then IMAGE_ARCH_GO=386  ; fi
    if [ "$IMAGE_ARCH" == "arm32v7" ]; then IMAGE_ARCH_GO=arm  ; fi
    if [ "$IMAGE_ARCH" == "arm64v8" ]; then IMAGE_ARCH_GO=arm64; fi

    # Build Go binary
    mkdir build
    GOOS=linux GOARCH=$IMAGE_ARCH_GO go build -ldflags="-s -w -linkmode external -extldflags \"-static\"" -o build/$PROGRAM $PROGRAM/*.go
    upx --best build/$PROGRAM

    # Build image
    docker build \
      -t $DOCKER_USERNAME/$IMAGE_NAME:$IMAGE_ARCH \
      -f $PROGRAM/Dockerfile \
      --build-arg IMAGE_ARCH=$IMAGE_ARCH \
      --build-arg IMAGE_ARCH_ALT=$IMAGE_ARCH_ALT \
      --build-arg IMAGE_ARCH_GO=$IMAGE_ARCH_GO \
      .

    # Tag image :{arch} and :{arch}-build{build number}
    docker tag $DOCKER_USERNAME/$IMAGE_NAME:$IMAGE_ARCH $DOCKER_USERNAME/$IMAGE_NAME:$IMAGE_ARCH-build$TRAVIS_BUILD_NUMBER
    if [ "$IMAGE_ARCH" = "amd64" ]; then
      # Tag as latest for amd64 images
      docker tag $DOCKER_USERNAME/$IMAGE_NAME:$IMAGE_ARCH $DOCKER_USERNAME/$IMAGE_NAME:latest
      docker tag $DOCKER_USERNAME/$IMAGE_NAME:$IMAGE_ARCH $DOCKER_USERNAME/$IMAGE_NAME:build$TRAVIS_BUILD_NUMBER
    fi
  - docker push $DOCKER_USERNAME/$IMAGE_NAME