asset_library/collection/build_collection_blends.py
2026-01-07 16:05:47 +01:00

133 lines
4.3 KiB
Python

import argparse
import bpy
import sys
import json
from pathlib import Path
from time import time, sleep
from itertools import groupby
from asset_library.common.bl_utils import load_datablocks, col_as_asset
from asset_library.constants import ASSETLIB_FILENAME
""" blender_assets.libs.json data Structure
[
{
'name': 'chars/main',
'id': '013562-56315-4563156-123',
'children':
[
{
'filepath' : '/z/...',
'name' : 'collection name',
'tags' : ['variation', 'machin', 'chose'],
'metadata' : {'filepath': '$PROJECT/...', 'version' : 'mushable'}
},
{
'filepath' : '/z/...',
},
],
},
]
"""
def build_collection_blends(path, categories=None, clean=True):
t0 = time()
scn = bpy.context.scene
scn.render.resolution_x = scn.render.resolution_y = 1000
json_path = Path(path) / ASSETLIB_FILENAME
if not json_path.exists():
return
# _col_datas = json.loads(json_path.read())[category]
category_datas = json.loads(json_path.read_text())
for category_data in category_datas:
if categories and category_data["name"] not in categories:
continue
bpy.ops.wm.read_homefile(use_empty=True)
# category_data = next(c for c in category_datas if c['name'] == category)
# _col_datas = category_data['children']
cat_name = category_data["name"]
build_path = Path(path) / cat_name / f"{cat_name}.blend"
## re-iterate in grouped filepath
col_datas = sorted(category_data["children"], key=lambda x: x["filepath"])
for filepath, col_data_groups in groupby(
col_datas, key=lambda x: x["filepath"]
):
# f = Path(f)
if not Path(filepath).exists():
print(f"Not exists: {filepath}")
continue
col_data_groups = list(col_data_groups)
col_names = [a["name"] for a in col_data_groups]
linked_cols = load_datablocks(
filepath, col_names, link=True, type="collections"
)
for i, col in enumerate(linked_cols):
# iterate in linked collection and associated data
if not col:
continue
asset_data = col_data_groups[i]
## asset_data -> {'filepath': str, 'tags': list, 'metadata': dict}
## Directly link as collection inside a marked collection with same name
marked_col = col_as_asset(col, verbose=True)
marked_col.asset_data.description = asset_data.get("description", "")
marked_col.asset_data.catalog_id = category_data["id"] # assign catalog
for k, v in asset_data.get("metadata", {}).items():
marked_col.asset_data[k] = v
## exclude collections and generate preview
bpy.ops.ed.lib_id_generate_preview({"id": marked_col}) # preview gen
vcol = bpy.context.view_layer.layer_collection.children[marked_col.name]
vcol.exclude = True
sleep(1.0)
## clear all objects (can be very long with a lot of objects...):
if clean:
print("Removing links...")
for lib in reversed(bpy.data.libraries):
bpy.data.libraries.remove(lib)
# Créer les dossiers intermediaires
build_path.parent.mkdir(parents=True, exist_ok=True)
print("Saving to", build_path)
bpy.ops.wm.save_as_mainfile(filepath=str(build_path), compress=False)
print("build time:", f"{time() - t0:.1f}s")
bpy.ops.wm.quit_blender()
if __name__ == "__main__":
parser = argparse.ArgumentParser(
description="build_collection_blends",
formatter_class=argparse.ArgumentDefaultsHelpFormatter,
)
parser.add_argument(
"-path"
) # Trouve/créer le json assetlib.json en sous-dossier de libdir
parser.add_argument(
"--category"
) # Lit la category dans le json et a link tout dans le blend
if "--" in sys.argv:
index = sys.argv.index("--")
sys.argv = [sys.argv[index - 1], *sys.argv[index + 1 :]]
args = parser.parse_args()
build_collection_blends(**vars(args))