pyro shelf tools to SOPs

[bunker]

Houdini's pyro shelf tools create 3 nodes on /obj/ level. I really hate that and got tired of copy+paste+renaming nodes...
I wrote a simple shelf tool python script to fix that. It works for PyoFX and Sparse PyoFX shelf tools.
hope someone finds it useful and if anyone can improve that script or make it more generic, please post it here...

import re

# move dopnet to SOPs
def dopnet2sop():
  # find first dopnet (assuming there's only one)
  # replace relative external paths to absolute paths
  dopnet=hou.nodeType("Object/dopnet").instances()[0]

  sourceNode=''
  for dopnode in dopnet.children():
    for parm in dopnode.parms():
      nodepath=parm.evalAsNode()
      if nodepath!=None and len(nodepath.path().split(dopnet.path()))==1:
          # convert to absolute path
          path = parm.evalAsNode().path()
          parm.set(path)
          # find the pyro source's path
          if dopnode.type().name()=='volumesource':
            sourceNode=hou.node(path)

  sopDopnet = sourceNode.parent().createNode("dopnet")
  pos = sourceNode.position()
  sopDopnet.setPosition((pos[0],pos[1]-1))
  
  hou.copyNodesTo(dopnet.children(),sopDopnet)
  dopnet.destroy()
  return sopDopnet

# set dopnet as reference in dopnode's path
def fixdopio(dopnet):
  di=None
  for dopio in hou.nodeType("Sop/dopio").instances():
    dp=dopio.evalParm("doppath")
    dn=dopio.evalParm("dopnode")
    r = '`chsop("doppath")`'
    a = re.sub(dp,r,dn)    
    dopio.parm("dopnode").set(a)
    dopio.parm("doppath").set(dopnet.path())
    di=dopio
  return di    

# move import nodes to SOPs
def moveDopioNodes(sopDopnet,dopio):
  dopIoParent=dopio.parent()

  # find highest node on y axis
  x=0
  y=0
  for i in dopIoParent.children():
    pos=i.position()
    x=min(x,pos[0])
    y=max(y,pos[1])

  ioNodes=hou.copyNodesTo(dopIoParent.children(),sopDopnet.parent())

  diffx=x-sopDopnet.position()[0]
  diffy=y-sopDopnet.position()[1]
  for ioNode in ioNodes:
    pos = ioNode.position()
    ioNode.setPosition((pos[0]-diffx,pos[1]-diffy-1))
  dopIoParent.destroy()

# remove unused Output dop nodes
def removeUnusedOutputnodes():
  for out in hou.nodeType("Dop/output").instances():
    if len(out.inputs())==0:
      out.destroy()
  
# move dopnet and dopio to SOPs
hou.setUpdateMode(hou.updateMode.Manual)
sopDopnet=dopnet2sop()
dopio=fixdopio(sopDopnet)
moveDopioNodes(sopDopnet,dopio)
removeUnusedOutputnodes()
hou.setUpdateMode(hou.updateMode.OnMouseUp)

Edited April 26, 2020 by bunker