From 985b369b9717cfec1c7c9717804060d4c3754fff Mon Sep 17 00:00:00 2001
From: MustafaJafar <mustafataherzaky@outlook.com>
Date: Wed, 17 Jul 2024 00:14:17 +0300
Subject: [PATCH] Implement ExtractLastPublished

---
 .../plugins/publish/extract_last_published.py | 98 +++++++++++++++++++
 1 file changed, 98 insertions(+)
 create mode 100644 client/ayon_houdini/plugins/publish/extract_last_published.py

diff --git a/client/ayon_houdini/plugins/publish/extract_last_published.py b/client/ayon_houdini/plugins/publish/extract_last_published.py
new file mode 100644
index 0000000000..874e4d7441
--- /dev/null
+++ b/client/ayon_houdini/plugins/publish/extract_last_published.py
@@ -0,0 +1,98 @@
+import os
+import shutil
+import hou
+
+import clique
+import pyblish.api
+
+from ayon_core.lib import collect_frames
+from ayon_houdini.api import plugin, lib
+
+
+class ExtractLastPublished(plugin.HoudiniExtractorPlugin):
+    """
+    Generic Extractor that copies files from last published
+    to staging directory.
+    It works only if instance data includes "last_version_published_files"
+    and there are frames to fix.
+
+    The files from last published are base of files which will be extended/fixed for specific
+    frames.
+    """
+
+    order = pyblish.api.ExtractorOrder - 0.1
+    label = "Extract Last Published"
+    families = ["*"]
+
+    def process(self, instance):
+        frames_to_fix = instance.data.get("frames_to_fix")
+        last_published = instance.data.get("last_version_published_files")
+        if not last_published:
+            self.log.debug("Skipping, No last publish found.")
+            return 
+        if not frames_to_fix :
+            self.log.debug("Skipping, No frames to fix.")
+            return
+
+        # Get a list of expected filenames
+        node = hou.node(instance.data.get("instance_node", ""))
+        if not node:
+            self.log.debug("Skipping, Instance has no instance_node")
+            return
+        output_parm = lib.get_output_parameter(node)
+        if not output_parm:
+            self.log.debug("Skipping, ROP node type '{}' is not supported."
+                           .format(node.type().name()))
+            return
+        filepath = output_parm.eval()
+        if not filepath:
+            self.log.debug("Skipping, No filepath value found.")
+            return
+
+        expected_filenames = []
+        staging_dir, _ = os.path.split(filepath)
+        expectedFiles = instance.data.get("expectedFiles", [])
+
+        # 'expectedFiles' are preferred over 'frames'
+        if expectedFiles:
+            # Products with expected files
+            # This can be Render products or submitted cache to farm.
+            for expected in expectedFiles:
+                # expected.values() is a list of lists
+                expected_filenames.extend(sum(expected.values(), []))
+        else:
+            # Products with frames or single file.
+            frames = instance.data.get("frames", "")
+            if isinstance(frames, str):
+                # single file.
+                expected_filenames.append(filepath)
+            else:
+                # list of frame.
+                expected_filenames.extend(
+                    ["{}/{}".format(staging_dir, f) for f in frames]
+                )
+
+        if not os.path.exists(staging_dir):
+            os.makedirs(staging_dir)
+
+        anatomy = instance.context.data["anatomy"]
+        last_published_and_frames = collect_frames(last_published)
+
+        expected_and_frames = collect_frames(expected_filenames)
+        frames_and_expected = {v: k for k, v in expected_and_frames.items()}
+        frames_to_fix = clique.parse(frames_to_fix, "{ranges}")
+        
+        for file_path, frame in last_published_and_frames.items():
+            file_path = anatomy.fill_root(file_path)
+            if not os.path.exists(file_path):
+                continue
+            target_file_name = frames_and_expected.get(frame)
+            if not target_file_name:
+                continue
+
+            out_path = os.path.join(staging_dir, target_file_name)
+
+            # Copy only the frames that we won't render.
+            if frame and frame not in frames_to_fix:
+                self.log.debug("Copying '{}' -> '{}'".format(file_path, out_path))
+                shutil.copy(file_path, out_path)