Yruba provides a rule system similar to make or ant for the shell. Compared to make there is no hairy mix of syntaxes, because everything is written in shell syntax.
Compared to ant you don’t have to rely on the ant developers to reinvent all the wheels that are so easily available from the shell. Compared to both, there is a clear separation between
- a list of dependencies that must be up-to-date before the current task can be performed,
- an explicit test that checks whether the target is really out-of-date, and
- a command that finally makes the target.
Despite the name I will try to make yruba available in general for POSIX shells. The current version was, however, developed and tested only with bash.