OK I’ve got another idea in addition to what I suggested previously.
What you could do is take over the copy_file.py hook, as this will be called when the file gets copied during the open. Then in this hook you could store an env var with the source and dest paths, something like:
# combine them into one env var or store them as separate env vars.
os.envion["PUBTOWORK"] = os.path.pathsep.join([source_path, target_path])
Then in the scene operations hook you can retrieve the env var, check if the target_path matches the file you’re going to open and then you know which publish it came from.
pub_to_work = os.envion.get("PUBTOWORK")
source, target = combined.split(os.path.pathsep)
if file_path == target:
# The file we are opening matches that which was previously copied,
# now find which publish comes from the source
# We need to grab the publish template settings so we can check the source path against
# the publish template, to ensure it is a publish. We're not using self.parent.get_template
# as we might be in the middle of switching environments and the current settings
# might not be reflective of the environment we are going to into.
app_settings = sgtk.platform.find_app_settings(self.parent.engine.name,
# its possible to have multiple instances of an app in a given environment
# but we are assuming here that there is only one instance of workfiles2,
# so we take the first one.
publish_template_string = app_settings["settings"]["template_publish"]
publish_template = self.sgtk.templates[publish_template_string]
self.logger.info("Publish template found: %s" % publish_template)
publish_template = self.parent.get_template("template_publish")
# we have a published file
I think that would work?