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

file:./
               state = STATIC
          created by   root:
            supplies   file:another.txt
            supplies   file:copy.txt
            supplies   file:original.txt
            supplies   file:plan.py
            supplies   step:runpy ./plan.py
            supplies   step:runsh cp copy.txt another.txt
            supplies   step:runsh cp original.txt copy.txt

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

step:runpy ./plan.py
               state = PENDING
             env_var = STEPUP_PATH_FILTER [amended]
          created by   root:
            consumes   file:./
            consumes   file:plan.py
             creates   file:original.txt
             creates   step:runsh cp copy.txt another.txt
             creates   step:runsh cp original.txt copy.txt

step:runsh cp copy.txt another.txt
               state = SUCCEEDED
          created by   step:runpy ./plan.py
            consumes   file:./
            consumes   file:copy.txt
             creates   file:another.txt
            supplies   file:another.txt

file:copy.txt
               state = BUILT
          created by   step:runsh cp original.txt copy.txt
            consumes   file:./
            consumes   step:runsh cp original.txt copy.txt
            supplies   step:runsh cp copy.txt another.txt

file:another.txt
               state = BUILT
          created by   step:runsh cp copy.txt another.txt
            consumes   file:./
            consumes   step:runsh cp copy.txt another.txt

step:runsh cp original.txt copy.txt
               state = SUCCEEDED
          created by   step:runpy ./plan.py
            consumes   file:./
            consumes   file:original.txt
             creates   file:copy.txt
            supplies   file:copy.txt

file:original.txt
               state = STATIC
          created by   step:runpy ./plan.py
            consumes   file:./
            supplies   step:runsh cp original.txt copy.txt
