root:
             creates   file:./
             creates   file:plan.py
             creates   step:runpy ./plan.py

file:./
               state = STATIC
          created by   root:
            supplies   file:data/
            supplies   file:plan.py
            supplies   step:runpy ./plan.py
            supplies   step:runsh cat data/sub/inp.txt > data/sub/out.txt

file:plan.py
               state = STATIC
          created by   root:
            consumes   file:./
            supplies   step:runpy ./plan.py

step:runpy ./plan.py
               state = SUCCEEDED
             env_var = STEPUP_PATH_FILTER [amended]
          created by   root:
            consumes   file:./
            consumes   file:plan.py
             creates   file:data/
             creates   file:data/sub/
             creates   file:data/sub/inp.txt
             creates   step:runsh cat data/sub/inp.txt > data/sub/out.txt

file:data/
               state = MISSING
          created by   step:runpy ./plan.py
            consumes   file:./
            supplies   file:data/sub/

file:data/sub/
               state = MISSING
          created by   step:runpy ./plan.py
            consumes   file:data/
            supplies   file:data/sub/inp.txt
            supplies   file:data/sub/out.txt
            supplies   step:runsh cat data/sub/inp.txt > data/sub/out.txt

file:data/sub/inp.txt
               state = MISSING
          created by   step:runpy ./plan.py
            consumes   file:data/sub/
            supplies   step:runsh cat data/sub/inp.txt > data/sub/out.txt

step:runsh cat data/sub/inp.txt > data/sub/out.txt
               state = PENDING
          created by   step:runpy ./plan.py
            consumes   file:./
            consumes   file:data/sub/
            consumes   file:data/sub/inp.txt
             creates   file:data/sub/out.txt
            supplies   file:data/sub/out.txt

file:data/sub/out.txt
               state = AWAITED
          created by   step:runsh cat data/sub/inp.txt > data/sub/out.txt
            consumes   file:data/sub/
            consumes   step:runsh cat data/sub/inp.txt > data/sub/out.txt
