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:cat.pdf
            supplies   file:doc1.pdf
            supplies   file:doc2.pdf
            supplies   file:plan.py
            supplies   step:./plan.py
            supplies   step:mutool merge -o cat.pdf doc1.pdf doc2.pdf

step:./plan.py
             workdir = ./
             command = ./plan.py
               state = SUCCEEDED
   env_var (amended) = REPREP_MUTOOL
          created by   root:
            consumes   file:./
            consumes   file:plan.py
             creates   file:doc1.pdf
             creates   file:doc2.pdf
             creates   step:mutool merge -o cat.pdf doc1.pdf doc2.pdf

file:doc1.pdf
                path = doc1.pdf
               state = STATIC
          created by   step:./plan.py
            consumes   file:./
            supplies   step:mutool merge -o cat.pdf doc1.pdf doc2.pdf

file:doc2.pdf
                path = doc2.pdf
               state = STATIC
          created by   step:./plan.py
            consumes   file:./
            supplies   step:mutool merge -o cat.pdf doc1.pdf doc2.pdf

step:mutool merge -o cat.pdf doc1.pdf doc2.pdf
             workdir = ./
             command = mutool merge -o cat.pdf doc1.pdf doc2.pdf
               state = SUCCEEDED
          created by   step:./plan.py
            consumes   file:./
            consumes   file:doc1.pdf
            consumes   file:doc2.pdf
             creates   file:cat.pdf
            supplies   file:cat.pdf

file:cat.pdf
                path = cat.pdf
               state = BUILT
          created by   step:mutool merge -o cat.pdf doc1.pdf doc2.pdf
            consumes   file:./
            consumes   step:mutool merge -o cat.pdf doc1.pdf doc2.pdf
