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:analyzed.txt
            supplies   file:data.txt
            supplies   file:plan.py
            supplies   step:./plan.py
            supplies   step:cat analyzed.txt
            supplies   step:grep -i foo data.txt > analyzed.txt

step:./plan.py
             workdir = ./
             command = ./plan.py
               state = SUCCEEDED
                 ngm = ['data.txt'] {}
       extended hash = yes
          created by   root:
            consumes   file:./
            consumes   file:plan.py
             creates   file:data.txt
             creates   step:cat analyzed.txt
             creates   step:grep -i foo data.txt > analyzed.txt

file:data.txt
                path = data.txt
               state = STATIC
          created by   step:./plan.py
            consumes   file:./
            supplies   step:grep -i foo data.txt > analyzed.txt

step:grep -i foo data.txt > analyzed.txt
             workdir = ./
             command = grep -i foo data.txt > analyzed.txt
               state = SUCCEEDED
       extended hash = yes
          created by   step:./plan.py
            consumes   file:./
            consumes   file:data.txt
             creates   file:analyzed.txt
            supplies   file:analyzed.txt

file:analyzed.txt
                path = analyzed.txt
               state = BUILT
          created by   step:grep -i foo data.txt > analyzed.txt
            consumes   file:./
            consumes   step:grep -i foo data.txt > analyzed.txt
            supplies   step:cat analyzed.txt

step:cat analyzed.txt
             workdir = ./
             command = cat analyzed.txt
               state = SUCCEEDED
       extended hash = yes
          created by   step:./plan.py
            consumes   file:./
            consumes   file:analyzed.txt
