map, flatMap on single/parallel tasks
dependsOn for side-effect-only dependencies
variants to handle failure- operations similar to catch/finally
fork, join, reduce, ...
initial structure to handle tags, needs to be moved to generic map
per-task streams:
file-backed, named input/output streams and readers
keyed by task name
grab streams of current task or another task's streams
pipe between tasks, ProcessBuilders (partially unify tasks/processes)
access to command line, current State from any task
multi-project aggregation controllable per-task
open issue: overloading #| with multiple type classes does not work
Mark Harrah