#!/usr/bin/env bash
set -euo pipefail

root="$(cd "$(dirname "${BASH_SOURCE[0]}")/../.." && pwd)"
out="$root/bash/rbashrc"

{
  cat "$root/bash/rbashrc.in"

  shopt -s nullglob

  core_files=( "$root"/bash/core/*.bash )

  if [ "${#core_files[@]}" -eq 0 ]; then
    echo "error: no core files found under bash/core/*.bash" >&2
    exit 1
  fi

  for f in "${core_files[@]}"; do
    rel="${f#$root/}"
    printf '\n\n# ---- rbash: %s ----\n\n' "$rel"
    cat "$f"
  done
} > "$out"

chmod +x "$out"
echo "wrote $out"