#!/usr/bin/env bash

# Usage: 
#  ./run_dockers.bsh - Run all the docker images
#  ./run_dockers.bsh lfs_centos_5 lfs_centos_7 - Run only CentOS 5 & 7 image

set -eu

CUR_DIR=$(cd $(dirname "${BASH_SOURCE[0]}"); pwd)
REPO_DIR=$(cd ${CUR_DIR}/..; pwd)
PACKAGE_DIR=${CUR_DIR}/repos
BUILD_LOCAL=1

#If you are not in docker group and you have sudo, default value is sudo
: ${SUDO=`if id -nG | grep -qwv docker && which sudo > /dev/null 2>&1; then echo sudo; fi`}

function split_image_name()
{ #$1 - image directory name or dockerfile
  #sets IMAGE_NAME to the basename of the dir containing the docker file
  #sets IMAGE_INFO to be the array name following my pattern
  IMAGE_NAME=$(basename $1)
  if [ "${IMAGE_NAME,,}" == "dockerfile" ]; then
    IMAGE_NAME=$(basename $(dirname $1))
  fi
  
  local IFS=_
  IMAGE_INFO=(${IMAGE_NAME})
}

IMAGES=()
while [[ $# > 0 ]]; do
  if [ "$1" == "--" ]; then
    shift
    DOCKER_CMD="${@}"
    break
  else
    IMAGES+=("$1")
  fi
  shift
done

if [[ ${#IMAGES} == 0 ]]; then
  IMAGES=($(ls -d ${CUR_DIR}/git-lfs_*/Dockerfile))
fi

mkdir -p "${PACKAGE_DIR}"
#Run docker to build pacakges
for DOCKER_FILE in "${IMAGES[@]}"; do
  split_image_name "${DOCKER_FILE}" #set IMAGE_NAME and IMAGE_INFO
  
  echo Compiling LFS in docker image ${IMAGE_NAME}
  IMAGE_REPO_DIR="${PACKAGE_DIR}"/"${IMAGE_INFO[1]}"/"${IMAGE_INFO[2]}"
  $SUDO docker run --rm ${DOCKER_CMD+-it} \
                   -e BUILD_LOCAL=${BUILD_LOCAL} \
                   -v ${REPO_DIR}:/src \
                   -v ${IMAGE_REPO_DIR}:/repo \
                   --name git-lfs_build_container \
                   ${IMAGE_NAME} ${DOCKER_CMD-}

  #mkdir -p "${IMAGE_REPO_DIR}"
  #$SUDO docker cp git-lfs_build_container:/tmp/docker_run/repo/ ${IMAGE_REPO_DIR}

#  $SUDO docker kill git-lfs_build_container
#  $SUDO docker rm git-lfs_build_container
done