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

file:./
               state = STATIC
          created by   root:
            supplies   file:asource1.txt
            supplies   file:asource2.txt
            supplies   file:data1.txt
            supplies   file:data2.txt
            supplies   file:log.txt
            supplies   file:plan.py
            supplies   file:work.py
            supplies   step:copy asource1.txt data1.txt
            supplies   step:copy asource2.txt data2.txt
            supplies   step:runpy ./plan.py
            supplies   step:runsh ./work.py > log.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]
           explained = yes
          created by   root:
            consumes   file:./
            consumes   file:plan.py
             creates   file:asource1.txt
             creates   file:asource2.txt
             creates   file:work.py
             creates   step:copy asource1.txt data1.txt
             creates   step:copy asource2.txt data2.txt
             creates   step:runsh ./work.py > log.txt

step:runsh ./work.py > log.txt
               state = PENDING
           explained = yes
          created by   step:runpy ./plan.py
            consumes   file:./
            consumes   file:data1.txt
            consumes   file:data2.txt [amended]
            consumes   file:work.py
             creates   file:log.txt
            supplies   file:log.txt

file:data1.txt
               state = AWAITED
          created by   step:copy asource1.txt data1.txt
            consumes   file:./
            consumes   step:copy asource1.txt data1.txt
            supplies   step:runsh ./work.py > log.txt

file:work.py
               state = STATIC
          created by   step:runpy ./plan.py
            consumes   file:./
            supplies   step:runsh ./work.py > log.txt

file:log.txt
               state = AWAITED
          created by   step:runsh ./work.py > log.txt
            consumes   file:./
            consumes   step:runsh ./work.py > log.txt

file:asource1.txt
               state = MISSING
          created by   step:runpy ./plan.py
            consumes   file:./
            supplies   step:copy asource1.txt data1.txt

file:asource2.txt
               state = STATIC
          created by   step:runpy ./plan.py
            consumes   file:./
            supplies   step:copy asource2.txt data2.txt

step:copy asource1.txt data1.txt
               state = PENDING
           explained = yes
          created by   step:runpy ./plan.py
            consumes   file:./
            consumes   file:asource1.txt
             creates   file:data1.txt
            supplies   file:data1.txt

step:copy asource2.txt data2.txt
               state = SUCCEEDED
           explained = yes
          created by   step:runpy ./plan.py
            consumes   file:./
            consumes   file:asource2.txt
             creates   file:data2.txt
            supplies   file:data2.txt

file:data2.txt
               state = BUILT
          created by   step:copy asource2.txt data2.txt
            consumes   file:./
            consumes   step:copy asource2.txt data2.txt
            supplies   step:runsh ./work.py > log.txt
