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

file:./
               state = STATIC
          created by   root:
            supplies   (file:copy1.txt)
            supplies   (file:orig.txt)
            supplies   (step:runsh cp orig.txt copy1.txt)
            supplies   file:copy2.txt
            supplies   file:plan.py
            supplies   step:runpy ./plan.py
            supplies   step:runsh cp copy1.txt copy2.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   step:runsh cp copy1.txt copy2.txt

(file:orig.txt)
               state = MISSING
            consumes   file:./
            supplies   (step:runsh cp orig.txt copy1.txt)

(step:runsh cp orig.txt copy1.txt)
               state = PENDING
            consumes   (file:orig.txt)
            consumes   file:./
             creates   (file:copy1.txt)
            supplies   (file:copy1.txt)

(file:copy1.txt)
               state = OUTDATED
          created by   (step:runsh cp orig.txt copy1.txt)
            consumes   (step:runsh cp orig.txt copy1.txt)
            consumes   file:./
            supplies   step:runsh cp copy1.txt copy2.txt

step:runsh cp copy1.txt copy2.txt
               state = PENDING
          created by   step:runpy ./plan.py
            consumes   (file:copy1.txt)
            consumes   file:./
             creates   file:copy2.txt
            supplies   file:copy2.txt

file:copy2.txt
               state = OUTDATED
          created by   step:runsh cp copy1.txt copy2.txt
            consumes   file:./
            consumes   step:runsh cp copy1.txt copy2.txt
