VERSION='7.3.9'
PYVER='3.9'

# https://www.pypy.org/checksums.html
aarch64_hash=2e1ae193d98bc51439642a7618d521ea019f45b8fb226940f7e334c548d2b4b9
linux32_hash=0de4b9501cf28524cdedcff5052deee9ea4630176a512bdc408edfa30914bae7
linux64_hash=46818cb3d74b96b34787548343d266e2562b531ddbaf330383ba930ff1930ed5
osx64_hash=59c8852168b2b1ba1f0211ff043c678760380d2f9faf2f95042a8878554dbc25
s390x_hash=774dca83bcb4403fb99b3d155e7bd572ef8c52b9fe87a657109f64e75ad71732
win64_hash=be48ab42f95c402543a7042c999c9433b17e55477c847612c8733a583ca6dff5

### end of manual settings - following lines same for every download

function err_no_binary {
    local archmsg="${1}"
    local ver="pypy${PYVER}-v${VERSION}-src"
    local url="https://downloads.python.org/pypy/${ver}.tar.bz2"
    { echo
      colorize 1 "ERROR"
      echo ": The binary distribution of PyPy is not available for ${archmsg}."
      echo "try '${url}' to build from source."
      echo
    } >&2
    exit 1
}

function pypy_pkg_data {
    # pypy architecture tag
    local ARCH="${1}"

    # defaults
    local cmd='install_package'  # use bz2
    local pkg="${ARCH}" # assume matches
    local ext='tar.bz2' # windows is always diff...
    local hash='' # undefined

    # select the hash, fix pkg if not match ARCH, windows has ext of zip
    case "${ARCH}" in
    'linux-aarch64' )
      hash="${aarch64_hash}"
      pkg='aarch64'
      ;;
    'linux' )
      hash="${linux32_hash}"
      pkg='linux32'
      ;;
    'linux64' )
      hash="${linux64_hash}"
      ;;
    'osx64' )
      if require_osx_version "10.13"; then
        hash="${osx64_hash}"
      else
        err_no_binary "${ARCH}, OS X < 10.13"
      fi
      ;;
    's390x' )
      hash="${s390x_hash}"
      ;;
    'win64' )
      hash="${win64_hash}"
      cmd='install_zip'  # diff command
      ext='zip' # zip rather than bz2
      ;;
    * )
      err_no_binary "${ARCH}"
      ;;
    esac

    local basever="pypy${PYVER}-v${VERSION}"
    local baseurl="https://downloads.python.org/pypy/${basever}"

    # result - command, package dir, url+hash
    echo "${cmd}" "${basever}-${pkg}" "${baseurl}-${pkg}.${ext}#${hash}"
}

# determine command, package directory, url+hash
declare -a pd="$(pypy_pkg_data "$(pypy_architecture 2>/dev/null || true)")"

# install
${pd[0]} "${pd[1]}" "${pd[2]}" 'pypy' "verify_py${PYVER//./}" 'ensurepip'
