ChefDK installer

install.sh

#!/bin/sh

set -e

# default ChefDK version
chefdk_version="0.10.0-1"

while [ $# -gt 0 ]; do
  case "$1" in
  "-v" )
    chefdk_versoin="$2"
    shift 1
  ;;
  esac
  shift 1
done

tmp_dir="/tmp/chefdk.$$"
rm -fr "${tmp_dir}"
mkdir -p "${tmp_dir}"

unset machine
unset platform_family
unset platform
unset platform_version

machine="$(uname -m 2>/dev/null || true)"

if [ "${machine}" != "x86_64" ]; then
  echo "unsupported architecture: ${machine}" 1>&2
  exit 1
fi

if [ -f "/etc/lsb-release" ]; then
  platform="$(grep DISTRIB_ID /etc/lsb-release | cut -d '=' -f 2 | tr '[A-Z]' '[a-z]')"
  platform_version="$(grep DISTRIB_RELEASE /etc/lsb-release | cut -d '=' -f 2 | tr '[A-Z]' '[a-z]')"
fi

if [ -f "/etc/debian_version" ]; then
  if [ -z "${platform_family}" ]; then
    platform_family="debian"
  fi
  if [ -z "${platform}" ]; then
    platform="debian"
  fi
  if [ -z "${platform_version}" ]; then
    platform_version="$(cat /etc/debian_version | head -1)"
  fi
elif [ -f "/etc/redhat-release" ]; then
  if [ -z "${platform_family}" ]; then
    platform_family="rhel"
  fi
  if [ -z "${platform}" ]; then
    platform="$(head -1 /etc/redhat-release | sed -e 's/^\(.*\) release \([^ ]*\).*$/\1/' | tr '[A-Z]' '[a-z]')"
  fi
  if [ -z "${platform_version}" ]; then
    platform_version="$(head -1 /etc/redhat-release | sed -e 's/^\(.*\) release \([^ ]*\).*$/\2/' | tr '[A-Z]' '[a-z]')"
  fi
fi

unset found_curl
unset found_git

if command -v curl 1>/dev/null 2>&1; then
  found_curl=1
fi

if command -v git 1>/dev/null 2>&1; then
  found_git=1
fi

case "${platform_family}" in
"debian" )
  if [ -z "${found_curl}" ] || [ -z "${found_git}" ]; then
    apt-get update -q -y
    apt-get install -q -y curl git
  fi
  ;;
"rhel" )
  if [ -z "${found_curl}" ] || [ -z "${found_git}" ]; then
    yum check-update -q -y || true
    yum install -q -y curl git
  fi
  ;;
* )
  echo "unknown platform_family: ${platform_family}" 1>&2
  exit 1
  ;;
esac

unset chefdk_url
case "${platform_family}" in
"debian" )
  case "${platform}" in
  "debian" )
    case "${platform_version}" in
      "6" | "6."* | "7" | "7."* )
        chefdk_url="https://opscode-omnibus-packages.s3.amazonaws.com/debian/6/x86_64/chefdk_${chefdk_version}_amd64.deb"
      ;;
    esac
    ;;
  "ubuntu" )
    case "${platform_version}" in
    "12.04" | "12.04."* | "13.10" | "13.10."* | "14.04" | "14.04."* )
      chefdk_url="https://opscode-omnibus-packages.s3.amazonaws.com/ubuntu/12.04/x86_64/chefdk_${chefdk_version}_amd64.deb"
      ;;
    esac
    ;;
  esac
;;
"rhel" )
  case "${platform_version}" in
  "6" | "6."* )
      chefdk_url="https://opscode-omnibus-packages.s3.amazonaws.com/el/6/x86_64/chefdk-${chefdk_version}.el6.x86_64.rpm"
    ;;
  "7" | "7."* )
      chefdk_url="https://opscode-omnibus-packages.s3.amazonaws.com/el/7/x86_64/chefdk-${chefdk_version}.el7.x86_64.rpm"
    ;;
  esac
;;
esac

if [ -z "${chefdk_url}" ]; then
  echo "chefdk not available: platform_family=${platform_family}, platform=${platform}, platform_version=${platform_version}" 1>&2
  exit 1
fi

chefdk="${tmp_dir}/chefdk.${chefdk_url##*.}"

if curl --retry 5 -fsL "${chefdk_url}" > "${chefdk}"; then
  : # FIXME: verify checksum
else
  echo "fail to download chefdk from ${chefdk_url}" 1>&2
  exit 1
fi

case "${platform_family}" in
"debian" )
  dpkg -i "${chefdk}"
  ;;
"rhel" )
  rpm -Uvh --oldpackage --replacepkgs "${chefdk}"
  ;;
* )
  echo "unknown platform_family: ${platform_family}" 1>&2
  exit 1
  ;;
esac