# This is the recipe.sh script. It is executed by BPM in a temporary directory when compiling a source package
# BPM Expects the source code to be extracted into the automatically created 'source' directory which can be accessed using $BPM_SOURCE
# BPM Expects the output files to be present in the automatically created 'output' directory which can be accessed using $BPM_OUTPUT

# The build function is executed in the source directory
# This function is used to compile the source code
build() {
  export GOPATH="${BPM_WORKDIR}/go"
  export PATH="$GOPATH/bin:$PATH"
  export CGO_CPPFLAGS="${CPPFLAGS}"
  export CGO_CFLAGS="${CFLAGS}"
  export CGO_CXXFLAGS="${CXXFLAGS}"
  export CGO_LDFLAGS="${LDFLAGS}"
  export LDFLAGS=''
  export GOFLAGS='-buildmode=pie -trimpath -mod=readonly -modcacherw -ldflags=-linkmode=external -ldflags=-compressdwarf=false -ldflags=-B=gobuildid'
  export GO111MODULE=off
  export DOCKER_GITCOMMIT="tag v{BPM_PKG_VERSION}"
  export DOCKER_BUILDTAGS="seccomp"
  export DISABLE_WARN_OUTSIDE_CONTAINER=1

  mkdir -p "$GOPATH"/src/github.com/moby/moby
  ln -rsT "$BPM_SOURCE" "$GOPATH"/src/github.com/moby/moby/v2
  cd "$GOPATH"/src/github.com/moby/moby/v2
  
  VERSION=${BPM_PKG_VERSION} hack/make.sh dynbinary
}

# The package function is executed in the source directory
# This function is used to move the compiled files into the output directory
package() {
  install -Dm755 bundles/dynbinary-daemon/docker{d,-proxy} -t "$BPM_OUTPUT"/usr/bin/

  # Install sysusers
  install  -Dm644 "$BPM_WORKDIR"/sysusers "$BPM_OUTPUT"/usr/lib/sysusers.d/docker.conf

  # Install esvm service
  install -Dm644 "$BPM_WORKDIR"/dockerd.esv "$BPM_OUTPUT"/etc/esvm/services/dockerd.esv

  # Install package license
  install -Dm644 "$BPM_SOURCE"/LICENSE "$BPM_OUTPUT"/usr/share/licenses/moby/LICENSE
}