bungalow

#!/bin/bash

_debug() {

  local readonly msg="$1"

  echo "."
  echo "bungalow >> [Debug] << ${msg}"
  echo "."
}


_error() {

  local readonly msg="$1"

  echo "."
  echo "."
  echo "bungalow >> [Error] << ${msg}"
  echo "."
  echo "."

  return 1
}


_error_fatal() {

  local readonly msg="$1"

  echo "."
  echo "."
  echo "bungalow >> [Fatal Error] << ${msg}"
  echo "."
  echo "."

  exit 1
}


_yield_image_readybake() {

  local readonly outsetdir="$( pwd -P )"
  local readonly scriptdir="$( cd -- "$(dirname "$0")" >/dev/null 2>&1 ; pwd -P )"
  local rc

  cd $(mktemp -d) || return 1

  cp ${scriptdir}/bodega .

  cat > ./Dockerfile <<-__EOF__

	FROM rikorose/gcc-cmake:gcc-10
	COPY ./bodega /usr/local/bin
	RUN set -x \
	  && chmod +x /usr/local/bin/bodega \
	  && mkdir -p /var/bungalow

	WORKDIR /var/bungalow

	__EOF__

  echo; echo "${PWD}"; cat ./Dockerfile ; echo; echo; echo
  DOCKER_BUILDKIT=1 docker build --tag bungalow_readybake .

  rc="$?"

  cd -
  [[ ${OLDPWD} != ${outsetdir} ]] && rm -rf ${OLDPWD}

  return "${rc}"
}


_yield_image_readybake_alpine() {

  local readonly outsetdir="${PWD}"
  cd $(mktemp -d) || _error_fatal "unable to allocate temp dir"

  cat > ./Dockerfile <<-__EOF__

	FROM alpine:3.14.2
	RUN set -x \
	  && apk add --no-cache \
	      cmake gfortran libgfortran netcdf-dev

	__EOF__

  cat > ./.env <<-__EOF__

	FC=gfortran
	CXX=g++
	NETCDF_FLAGS=" -D_NETCDF"
	L_NETCDF=" -L/usr/lib/x86_64-linux-gnu/lib -lnetcdff"
	I_NETCDF=" -I/usr/include"

	__EOF__

  echo; echo "${PWD}"; cat ./*; echo; echo; echo
  docker build --tag bungalow_readybake_alpine .

  cd -
  [[ "${OLDPWD}" != "${outsetdir}" ]] && rm -rf ${OLDPWD}
}


_yield_image_readybake_centos() {

  echo
}


_yield_image_readybake_debian() {

  echo
}


_yield_image_readybake_ubuntu() {

  echo
}


_ready_buildenv() {

  local readonly flavor="$1"
  local readonly readybake_image="bungalow_readybake${flavor:+_}${flavor}:latest"
  #local readonly current_dirname="${PWD##*/}"

  local container_id

  read container_id <<< $(
  	docker create --interactive --tty ${readybake_image}
  )

  [[ -n ${container_id} ]] || return 1

  docker cp . ${container_id}:/var/bungalow
  #docker cp . ${container_id}:/var/bungalow/${current_dirname}

  BUILDENV_CONTAINER_ID="${container_id}"
}


__bungalow_build() {

  local readonly os_id="${1,,}"
  #local readonly current_dirname="${PWD##*/}"

  _yield_image_readybake  || _error_fatal "_yield_image_readybake"
  _ready_buildenv         || _error_fatal "_ready_buildenv"

  docker start  $BUILDENV_CONTAINER_ID

  docker exec \
    --interactive $BUILDENV_CONTAINER_ID \
    /bin/sh -c "bodega build" || _error "build failure"

  docker stop   $BUILDENV_CONTAINER_ID
  docker rm     $BUILDENV_CONTAINER_ID

  echo
}


#__bungalow_trace() {}
__bungalow_debug() {

  echo
}


BUILDENV_CONTAINER_ID=""

[[ -n "$1" ]] && "__bungalow_$1" "$@"