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241 lines (210 loc) · 7.65 KB
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from functools import reduce
import io
import os
from zipfile import ZipFile
import re
from . import files
from .files import File
from .enums import FileType
from .helpers import ImportHelper
from .streams import EndianBinaryReader
from .files import SerializedFile
reSplitFile = re.compile(r"^(.+)\.split(\d+)$")
class Environment:
files: dict
cabs: dict
path: str
def __init__(self, *args):
self.files = {}
self.cabs = {}
self.path = "."
self.out_path = os.path.join(os.getcwd(), "output")
if args:
for arg in args:
if isinstance(arg, str):
if os.path.isfile(arg):
if os.path.splitext(arg)[-1] in [".apk", ".zip"]:
self.load_zip_file(arg)
else:
self.path = os.path.dirname(arg)
self.load_files([arg])
elif os.path.isdir(arg):
self.path = arg
self.load_folder(arg)
else:
self.path = None
self.files[str(len(self.files))] = self.load_file(stream=arg)
if len(self.files) == 1:
self.file = list(self.files.values())[0]
def load_files(self, files: list):
"""Loads all files (list) into the AssetsManager and merges .split files for common usage."""
# filter split files
i = 0
splits = []
while i < len(files):
path = files[i]
splitMatch = reSplitFile.match(path)
if reSplitFile.match(path):
name = splitMatch[1]
if name not in splits:
splits.append(name)
files.remove(path)
else:
i += 1
# merge splits
for basepath in splits:
# merge data
data = io.BytesIO()
for i in range(0, 999):
item = f"{basepath}.split{i}"
if os.path.exists(item):
with open(item, "rb") as f:
data.write(f.read())
elif i:
break
self.files[self.reduce_path(basepath)] = self.load_file(data)
# load all other files
self.load(files)
def load_folder(self, path: str):
"""Loads all files in the given path and its subdirs into the AssetsManager."""
self.load_files(
[
os.path.join(root, f)
for root, dirs, files in os.walk(path)
for f in files
]
)
def reduce_path(self, fp: str) -> str:
return fp[len(self.path) :].lstrip("/\\")
def load(self, files: list):
"""Loads all files into the AssetsManager."""
self.files.update(
{
self.reduce_path(f): self.load_file(open(f, "rb"))
for f in files
if os.path.exists(f)
}
)
def load_file(self, stream, parent=None):
if not parent:
parent = self
typ, reader = ImportHelper.check_file_type(stream)
try:
stream_name = getattr(
stream,
"name",
str(stream.__hash__()) if hasattr(stream, "__hash__") else "",
)
if typ == FileType.AssetsFile:
return files.SerializedFile(reader, parent, name=stream_name)
elif typ == FileType.BundleFile:
return files.BundleFile(reader, parent, name=stream_name)
elif typ == FileType.WebFile:
return files.WebFile(reader, parent, name=stream_name)
elif typ == FileType.ZIP:
self.load_zip_file(stream)
elif typ == FileType.ResourceFile:
return EndianBinaryReader(stream)
except Exception as e:
# just to be sure
# cuz the SerializedFile detection isn't perfect
print("Error loading, reverting to EndianBinaryReader:\n", e)
return EndianBinaryReader(stream)
def load_zip_file(self, value):
buffer = None
if isinstance(value, str) and os.path.exists(value):
buffer = open(value, "rb")
elif isinstance(value, (bytes, bytearray)):
buffer = io.BytesIO(value)
elif isinstance(value, (io.BufferedReader, io.BufferedIOBase)):
buffer = value
z = ZipFile(buffer)
splits = []
for path in z.namelist():
splitMatch = reSplitFile.match(path)
if reSplitFile.match(path):
name = splitMatch[1]
if name not in splits:
splits[name] = []
continue
stream = z.open(path)
if stream._orig_file_size == 0:
continue
*path, name = path.split("/")
cur = self
for d in path:
if d not in cur.files:
cur.files[d] = files.File(self)
cur = cur.files[d]
cur.files[name] = self.load_file(stream, cur)
# merge splits
for basepath in splits:
# merge data
data = io.BytesIO()
for i in range(0, 999):
item = f"{basepath}.split{i}"
if item in z.namelist():
with z.open(item) as f:
data.write(f.read())
elif i:
break
*path, name = basepath.split("/")
cur = self
for d in path:
if d not in cur.files:
cur.files[d] = files.File(self)
cur = cur.files[d]
cur.files[name] = self.load_file(data, cur)
z.close()
def save(self, pack="none"):
"""Saves all changed assets.
Mark assets as changed using `.mark_changed()`.
pack = "none" (default) or "lz4"
"""
for f in self.files:
if self.files[f].is_changed:
with open(
os.path.join(self.out_path, os.path.basename(f)), "wb"
) as out:
out.write(self.files[f].save(packer=pack))
@property
def objects(self) -> list:
def search(item):
ret = []
if not isinstance(item, Environment) and getattr(item, "objects", None):
# serialized file
return [val for val in item.objects.values()]
elif getattr(item, "files", None): # WebBundle and BundleFile
# bundle
for item in item.files.values():
ret.extend(search(item))
return ret
return ret
return search(self)
@property
def container(self):
return {
path: obj
for f in self.files.values()
if isinstance(f, File)
for path, obj in f.container.items()
}
@property
def assets(self) -> list:
"""
Lists all assets / SerializedFiles within this environment.
"""
def gen_all_asset_files(file, ret=[]):
for f in getattr(file, "files", {}).values():
if isinstance(f, SerializedFile):
ret.append(f)
else:
gen_all_asset_files(f, ret)
return ret
return gen_all_asset_files(self)
def get(self, key: str, default=None):
return getattr(self, key, default)
def register_cab(self, name: str, item: object) -> None:
self.cabs[name.lower()] = item
def get_cab(self, name: str) -> object:
return self.cabs.get(name.lower(), None)