ducttape sometimes-skip task: cross-product error
问题 I'm trying a variant of sometimes-skip tasks for ducttape, based on the tutorial here: http://nschneid.github.io/ducttape-crash-course/tutorial5.html ([ducttape][1] is a Bash/Scala based workflow management tool.) I'm trying to do a cross-product to execute task1 on "clean" data and "dirty" data. The idea is to traverse the same path, but without preprocessing in some cases. To do this, I need to do a cross-product of tasks. task cleanup < in=(Dirty: a=data/a b=data/b) > out { prefix=$(cat