nix-closure-rtbt.sh

#! /usr/bin/env nix-shell
#! nix-shell -I nixpkgs=https://github.com/NixOS/nixpkgs/archive/d2c451f967e344df14e63985963e57fb64a6c58d.tar.gz
#! nix-shell -i bash -p xz

# Outputs a xz tarball of all run-time and build-time dependencies
# of the given nix store paths that are provided as arguments.
function fexport()
{
  set -x
  nix-store --export $(nix-store -qR --include-outputs $(nix-store -qd "$@")) \
    | xz -z -c -0
}

# Inputs `fexport`'s output.
function fimport()
{
  set -x
  xz -d -c | nix-store --import
}


case "$1" in
  import) shift; fimport $@;;
  export) shift; fexport $@;;
  *) echo "USAGE: $0 (import|export [NIX-STORE-PATH ...] )"; exit 1 ;;
esac