spack-enable.bash

# This is not an executable! Do not enable execute permissions.
# You need to be running a bash shell, then execute: . spack-enable.bash
# This file is from https://github.com/ACCESS-NRI/spack-config/

# Required layout:
# $prefix/spack
# $prefix/${CONFIGDIR}
# $prefix/spack-packages
# $prefix/release (defined in $prefix/${CONFIGDIR}/*/*/config.yaml)

# https://spack-tutorial.readthedocs.io/en/latest/tutorial_configuration.html#yaml-format
#
# When Spack checks its configuration, the configuration scopes are updated
# as dictionaries in increasing order of precedence, allowing higher precedence
# files to override lower. YAML dictionaries use a colon “:” to specify
# key-value pairs. Spack extends YAML syntax slightly to allow a double-colon
# “::” to specify a key-value pair. When a double-colon is used, instead of
# adding that section, Spack replaces what was in that section with the new
# value.

# TODO: Decide on the version of Python that we approve.
#export SPACK_PYTHON=

CONFIGDIR="$(realpath $(dirname $BASH_SOURCE))"

# NOTE: A lot of ugly code below to avoid setting variables in the
#       user's environment. e.g. Avoid defining functions.

if [ "$#" -eq 0 ]
then
    # Disable ~/.spack because we have seen compiler misconfiguration by
    # users. This also disables /etc/spack .
    export SPACK_DISABLE_LOCAL_CONFIG="true"

    # Setting SPACK_DISABLE_LOCAL_CONFIG ignores the following:
    # export SPACK_SYSTEM_CONFIG_PATH=""
    # export SPACK_USER_CONFIG_PATH=""
    unset SPACK_SYSTEM_CONFIG_PATH
    unset SPACK_USER_CONFIG_PATH
    echo "Using configuration in spack/etc/spack"

    # NOTE: If using symlinks is undesirable, the following commands can
    #       be used to construct the name of the relevant config directory.
    # git -C ${prefix}/spack branch
    # hostname --fqdn

# NOTE: This option is for CI/CD
elif [ "$#" -eq 1 ]
then
    CONFIG="${CONFIGDIR}/${1}"
    if [ ! -d "${CONFIG}" ]
    then
        echo "Directory ${CONFIG} does not exist."
        unset CONFIG
        unset CONFIGDIR
        return 1
    fi

    echo "Using configuration in ${CONFIG}"
    unset SPACK_DISABLE_LOCAL_CONFIG
    export SPACK_USER_CONFIG_PATH="${CONFIG}"
    export SPACK_SYSTEM_CONFIG_PATH="${CONFIG}"
    unset CONFIG

else
    echo "Usage: . ${PROGNAME} [<spack-version>/{ci,gadi}]"
    unset CONFIGDIR
    return 1
fi


# https://github.com/spack/spack/issues/27704
export SPACK_USER_CACHE_PATH="${CONFIGDIR}/../"

. ${CONFIGDIR}/../spack/share/spack/setup-env.sh
unset CONFIGDIR