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:double.txt
            supplies   file:plan.py
            supplies   file:quadruple.txt
            supplies   file:single.txt
            supplies   step:./plan.py
            supplies   step:cat double.txt double.txt > quadruple.txt
            supplies   step:cat single.txt single.txt > double.txt
            supplies   step:echo something > single.txt

step:./plan.py
             workdir = ./
             command = ./plan.py
               state = SUCCEEDED
       extended hash = yes
          created by   root:
            consumes   file:./
            consumes   file:plan.py
             creates   step:cat double.txt double.txt > quadruple.txt
             creates   step:cat single.txt single.txt > double.txt
             creates   step:echo something > single.txt

step:echo something > single.txt
             workdir = ./
             command = echo something > single.txt
               state = SUCCEEDED
       extended hash = yes
          created by   step:./plan.py
            consumes   file:./
             creates   file:single.txt
            supplies   file:single.txt

file:single.txt
                path = single.txt
               state = BUILT
          created by   step:echo something > single.txt
            consumes   file:./
            consumes   step:echo something > single.txt
            supplies   step:cat single.txt single.txt > double.txt

step:cat single.txt single.txt > double.txt
             workdir = ./
             command = cat single.txt single.txt > double.txt
               state = SUCCEEDED
       extended hash = yes
          created by   step:./plan.py
            consumes   file:./
            consumes   file:single.txt
             creates   file:double.txt
            supplies   file:double.txt

file:double.txt
                path = double.txt
               state = BUILT
          created by   step:cat single.txt single.txt > double.txt
            consumes   file:./
            consumes   step:cat single.txt single.txt > double.txt
            supplies   step:cat double.txt double.txt > quadruple.txt

step:cat double.txt double.txt > quadruple.txt
             workdir = ./
             command = cat double.txt double.txt > quadruple.txt
               state = SUCCEEDED
       extended hash = yes
          created by   step:./plan.py
            consumes   file:./
            consumes   file:double.txt
             creates   file:quadruple.txt
            supplies   file:quadruple.txt

file:quadruple.txt
                path = quadruple.txt
               state = BUILT
          created by   step:cat double.txt double.txt > quadruple.txt
            consumes   file:./
            consumes   step:cat double.txt double.txt > quadruple.txt
