Nuke Latest Version

nlv.py

"""
Select read nodes to find latest version.

Initial search range for versions are 50 versions up.
"""
import nuke
import nukescripts


nodes = nuke.selectedNodes()
search_range = [0, 5]
valid_paths = []
for node in nodes:
    if node.Class() != "Read":
        continue
    
    frame = node["frame"].getValue()
    node["frame"].setValue("0")

    for count in range(search_range[0], search_range[1]):
        path = nuke.filename(node, nuke.REPLACE)

        if os.path.exists(path):
            valid_paths.append([node, node["file"].getValue()])

        nukescripts.version_up()

    for count in range(search_range[0], search_range[1]):
        nukescripts.version_down()

    node["frame"].setValue(frame)

for node, path in valid_paths:
    node["file"].setValue(path)