upkg --help
upkg: a tool to compile Upkg XML specs into bash scripts.
Usage: upkg [options] [package] <output file>

Options:
  --install             Install the specified package.
  --remove              Remove the specified package.
  --bootstrap           Build the specified package in a separate root dir.
  --disable-source      Only install packages available as binaries.
  --disable-binary      Do not use binary packages. Compile them instead.
  --disable-caching     Do not cache XML specs.
  --stdout              Do not write to output file. Use standard output.
  --repos=<repo>,...    Use specified repositories.
  --tag=<name>          Use tag '<name>' within [package].
  --branch=<name>       The branch which will be used.
  --test                Performs a dry-run. Doesn't write anything.
  --help                Print this text.