build.sh

#!/usr/bin/env bash
set -e
use_sudo=0
image=
pg_version="$(cat pg_version)"

while [[ "$1" != "" ]]; do
    case $1 in
        -s | --sudo )           use_sudo=1
                                ;;
        -pg | --pg-version )    shift
                                pg_version=$1
                                ;;
        -i | --image )          shift
                                image=$1
                                ;;
    esac
    shift
done

if [[ ${use_sudo} == 1 ]]
 then
        sudo_string="sudo "
        else
        sudo_string=""
fi

${sudo_string} docker login -u ${DOCKER_HUB_USER} -p ${DOCKER_HUB_PASSWORD}

build_version (){
  image_version=$1
  pg_version=$2
  sudo_string=$3
  flag="$(echo ${image_version} | cut -d '|' -f1 -s)"
  image_version="$(echo ${image_version} | cut -d '|' -f2)"
  ruby_version="$(echo ${image_version} | cut -d '-' -f1)"
  template=Dockerfile.template

  if [[ ${flag} == "d" ]]
  then
    ruby_version="$ruby_version-debian"
    template=Dockerfile_debian.template
  fi

  sed -e "s/%%FROM%%/$image_version/g" \
      -e "s/%%TAG%%/$ruby_version/g" \
      -e "s/%%POSTGRES%%/$pg_version/g" \
      $template > Dockerfile

  ${sudo_string} docker build .
  ${sudo_string} docker build -t juicymo/drone-ruby:${ruby_version} .
  ${sudo_string} docker push juicymo/drone-ruby:${ruby_version}

  if [[ ${flag} == "g" ]]
  then
      minor_version="$(echo ${ruby_version} | cut -d '.' -f1-2)"
      ${sudo_string} docker build -t juicymo/drone-ruby:${minor_version} .
      ${sudo_string} docker push juicymo/drone-ruby:${minor_version}
  fi

  if [[ ${flag} == "d" ]]
    then
      echo "RUN apt-get update && apt-get install -y chromium" >> Dockerfile
    else
      echo "RUN apk add --no-cache chromium" >> Dockerfile
  fi

  ${sudo_string} docker build .
  ${sudo_string} docker build -t juicymo/drone-ruby:${ruby_version}-chrome .
  ${sudo_string} docker push juicymo/drone-ruby:${ruby_version}-chrome

  if [[ ${flag} == "g" ]]
  then
      minor_version="$(echo ${ruby_version} | cut -d '.' -f1-2)"
      ${sudo_string} docker build -t juicymo/drone-ruby:${minor_version}-chrome .
      ${sudo_string} docker push juicymo/drone-ruby:${minor_version}-chrome
  fi
}

if [[ ${image} == "" ]] ; then
    while read -r line
     do
        build_version ${line} ${pg_version} ${sudo_string}
    done < versions

    else

    build_version ${image} ${pg_version} ${sudo_string}
fi