asset_library/tests/test_library_cache.py

271 lines
7.3 KiB
Python

import bpy
from pathlib import Path
from asset_library.common.file_utils import read_file, write_file
from copy import deepcopy
import time
from itertools import groupby
class AssetCache:
def __init__(self, file_cache, data):
self.file_cache = file_cache
self._data = data
self.catalog = data['catalog']
self.author = data.get('author', '')
self.description = data.get('description', '')
self.tags = data.get('tags', [])
self.type = data.get('type')
self.name = data['name']
self._metadata = data.get('metadata', {})
@property
def filepath(self):
return self.file_cache.filepath
@property
def metadata(self):
metadata = {
'.library_id': self.library.id,
'.filepath': self.filepath
}
metadata.update(self.metadata)
return metadata
@property
def norm_name(self):
return self.name.replace(' ', '_').lower()
def to_dict(self):
return dict(
catalog=self.catalog,
author=self.author,
metadata=self.metadata,
description=self.description,
tags=self.tags,
type=self.type,
name=self.name
)
def __str__(self):
return f'AssetCache(name={self.name}, type={self.type}, catalog={self.catalog})'
class FileCache:
def __init__(self, library_cache, data):
self.library_cache = library_cache
self.filepath = data['filepath']
self.modified = data.get('modified', time.time_ns())
self._data = []
for asset_cache_data in data.get('assets', []):
self.add(asset_cache_data)
def add(self, asset_cache_data):
asset_cache = AssetCache(self, asset_cache_data)
self._data.append(asset_cache)
def to_dict(self):
return dict(
filepath=self.filepath.as_posix(),
modified=self.modified,
library_id=self.library_cache.library.id,
assets=[asset_cache.to_dict() for asset_cache in self]
)
def __iter__(self):
return self._data.__iter__()
def __getitem__(self, key):
return self._data[key]
def __str__(self):
return f'FileCache(filepath={self.filepath})'
class AssetCacheDiff:
def __init__(self, library_diff, asset_cache, operation):
self.library_cache = library_cache
self.filepath = data['filepath']
self.operation = operation
class LibraryCacheDiff:
def __init__(self, filepath=None):
self.filepath = filepath
self._data = []
def add(self, asset_diff):
asset_diff = AssetCacheDiff(self, asset_diff)
self._data.append(asset_cache_diff)
def set(self, asset_diffs):
for asset_diff in asset_diffs:
self.add(asset_diff)
def read(self):
print(f'Read cache from {self.filepath}')
for asset_diff_data in read_file(self.filepath):
self.add(asset_diff_data)
return self
def group_by(self, key):
'''Return groups of file cache diff using the key provided'''
data = list(self).sort(key=key)
return groupby(data, key=key)
def __iter__(self):
return iter(self._data)
def __len__(self):
return len(self._data)
def __getitem__(self, key):
return self._data[key]
class LibraryCache:
def __init__(self, directory, id):
self.directory = directory
self.id = id
self._data = []
@classmethod
def from_library(cls, library):
return cls(library.library_path, library.id)
@property
def filename(self):
return f"blender_assets.{self.id}.json"
@property
def filepath(self):
"""Get the filepath of the library json file relative to the library"""
return self.directory / self.filename
@property
def asset_caches(self):
'''Return an iterator to get all asset caches'''
return (asset_cache for file_cache in self for asset_cache in file_cache)
@property
def tmp_filepath(self):
return Path(bpy.app.tempdir) / self.filename
def read(self):
print(f'Read cache from {self.filepath}')
for file_cache_data in read_file(self.filepath):
self.add(file_cache_data)
return self
def write(self, temp=False):
filepath = self.filepath
if temp:
filepath = self.tmp_filepath
print(f'Write cache file to {filepath}')
write_file(filepath, self._data)
return filepath
def add(self, file_cache_data):
file_cache = FileCache(self, file_cache_data)
self._data.append(file_cache)
def unflatten_cache(self, cache):
""" Return a new unflattten list of asset data
grouped by filepath"""
new_cache = []
cache = deepcopy(cache)
cache.sort(key=lambda x : x['filepath'])
groups = groupby(cache, key=lambda x : x['filepath'])
keys = ['filepath', 'modified', 'library_id']
for _, asset_datas in groups:
asset_datas = list(asset_datas)
#print(asset_datas[0])
asset_info = {k:asset_datas[0][k] for k in keys}
asset_info['assets'] = [{k:v for k, v in a.items() if k not in keys+['operation']} for a in asset_datas]
new_cache.append(asset_info)
return new_cache
def diff(self, new_cache):
"""Compare the library cache with it current state and return the cache differential"""
cache = self.read()
cache_dict = {f"{a['filepath']}/{a['name']}": a for a in cache.asset_caches}
new_cache_dict = {f"{a['filepath']}/{a['name']}" : a for a in new_cache.asset_caches}
assets_added = [AssetCacheDiff(v, 'ADD') for k, v in new_cache.items() if k not in cache]
assets_removed = [AssetCacheDiff(v, 'REMOVED') for k, v in cache.items() if k not in new_cache]
assets_modified = [AssetCacheDiff(v, 'MODIFIED') for k, v in cache.items() if v not in assets_removed and v!= new_cache[k]]
if assets_added:
print(f'{len(assets_added)} Assets Added \n{tuple(a.name for a in assets_added[:10])}...\n')
if assets_removed:
print(f'{len(assets_removed)} Assets Removed \n{tuple(a.name for a in assets_removed[:10])}...\n')
if assets_modified:
print(f'{len(assets_modified)} Assets Modified \n{tuple(a.name for a in assets_modified[:10])}...\n')
cache_diff = LibraryCacheDiff()
cache_diff.set(assets_added+assets_removed+assets_modified)
if not len(LibraryCacheDiff):
print('No change in the library')
return cache_diff
def __len__(self):
return len(self._data)
def __iter__(self):
return iter(self._data)
def __getitem__(self, key):
return self._data[key]
def __str__(self):
return f'LibraryCache(library={self.library.name})'
print()
prefs = bpy.context.preferences.addons['asset_library'].preferences
library = prefs.env_libraries[0]
library_cache = LibraryCache.from_library(library).read()
data = library.library_type.fetch()
print(data)
print(library_cache[0][0])
#library_cache.diff(library.library_type.fetch())
#print(library_cache[0])