Bash: Archive logs older than seven days

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

log_dir="${1:-./logs}"
archive_dir="${2:-./archive}"
mkdir -p "$archive_dir"

find "$log_dir" -type f -name '*.log' -mtime +7 -print0 |
  while IFS= read -r -d '' file; do
    gzip -c "$file" > "$archive_dir/$(basename "$file").gz"
    rm "$file"
  done