#!/usr/bin/env sh

. $(dirname $0)/util
set -eu

: ${CONTINUOUS_INTEGRATION=}
: ${DOCKER_BUILDKIT=}

progressFlag=""
if [ "$CONTINUOUS_INTEGRATION" = "true" ]; then progressFlag="--progress=plain"; fi

cacheOnlyFlag=""
if ! docker build --help 2>&1 | grep buildx >/dev/null; then cacheOnlyFlag="-o type=cacheonly"; fi

case $buildmode in
  "buildkit")
    buildctl build $progressFlag --frontend=dockerfile.v0 --local context=. --local dockerfile=. \
      --opt target=validate \
      --opt filename=./hack/dockerfiles/shfmt.Dockerfile
    ;;
  "docker-buildkit")
    export DOCKER_BUILDKIT=1
    docker build $progressFlag $cacheOnlyFlag -f ./hack/dockerfiles/shfmt.Dockerfile --target validate .
    ;;
  *)
    echo "Unsupported build mode: $buildmode" >&2
    exit 1
    ;;
esac