root:
             version = v1
             creates   file:./
             creates   file:plan.py
             creates   step:./plan.py

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

file:./
                path = ./
               state = STATIC
          created by   root:
            supplies   file:README.md
            supplies   file:inventory.txt
            supplies   file:plan.py
            supplies   step:./plan.py
            supplies   step:reprep-make-inventory README.md -o inventory.txt

step:./plan.py
             workdir = ./
             command = ./plan.py
               state = SUCCEEDED
          created by   root:
            consumes   file:./
            consumes   file:plan.py
             creates   file:README.md
             creates   step:reprep-make-inventory README.md -o inventory.txt

file:README.md
                path = README.md
               state = STATIC
          created by   step:./plan.py
            consumes   file:./
            supplies   step:reprep-make-inventory README.md -o inventory.txt

step:reprep-make-inventory README.md -o inventory.txt
             workdir = ./
             command = reprep-make-inventory README.md -o inventory.txt
               state = SUCCEEDED
          created by   step:./plan.py
            consumes   file:./
            consumes   file:README.md
             creates   file:inventory.txt
            supplies   file:inventory.txt

file:inventory.txt
                path = inventory.txt
               state = BUILT
          created by   step:reprep-make-inventory README.md -o inventory.txt
            consumes   file:./
            consumes   step:reprep-make-inventory README.md -o inventory.txt
