loki/nix/generate-build-vars.sh

#!/bin/bash

current_dir=$(cd "$(dirname "$0")" && pwd)
root_dir=$(cd "${current_dir}/.." && pwd)

pushd "${root_dir}" >/dev/null || exit 1
cat <<NIX >"${current_dir}/build-vars.nix"
# DO NOT EDIT, this file is auto-generated by
# generate-build-vars.sh for purposes of getting around
# the dependency our build has on the .git folder, which is
# not copied to the nix store when building.
# Branch should match the branch you're building on, so 
# changes to this file should not be comitted to main.
# See the README for more details.
{
  gitBranch = "$(git rev-parse --abbrev-ref HEAD)";
}
NIX
popd >/dev/null || exit 1