dotfiles/build_hm.sh

#!/usr/bin/env nix-shell
#! nix-shell -i bash
#! nix-shell -p bash nix-output-monitor

set -euo pipefail
SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )

# Parse arguments
function help {
    echo "Usage: $0 [-h|-v|-b] profile"
    echo "Build Home Manager configuration on the local machine."
    echo
    echo "Arguments:"
    echo "  profile: Home Manager profile to use"
    echo
    echo "Options:"
    echo "  -h: Display this help message."
}

while getopts "h" OPTION
do
    case "$OPTION" in
        h)
            help
            exit 0
            ;;
        ?)
            help
            exit 2
            ;;
    esac
done
shift "$(($OPTIND -1))"

if [ "$#" -ne 1 ]
then
    help
    exit 2
fi
profile="$1"

profile_dir="${SCRIPT_DIR}/${profile}"
if [ ! -d "$profile_dir" ]
then
    echo "Profile not found."
fi

home_manager_config="${profile_dir}/hm.nix"
if [ ! -f "$home_manager_config" ]
then
    echo "Home Manager configuration not found."
fi

set -x

nom-build '<home-manager/home-manager/home-manager.nix>' --argstr confPath "${home_manager_config}" -o "${profile_dir}/hm"

set +x

echo 

path="$(readlink -f "${profile_dir}/hm")"

echo "Manual installation instructions:"
echo "- Transfer $path and dependencies to the destination machine (somehow)"
echo "- Run $path/activate as the destination user"
echo "- Log into the user again to make sure everything is sourced"
echo "- Transfer necessary private keys (or use ssh -A for testing)"
echo "- Run git-sync-init"
echo "- Check that the system can build itself"