Files
OpenCore-Legacy-Patcher/Resources/ioreg.py
2021-06-17 13:18:31 -04:00

84 lines
2.6 KiB
Python

from __future__ import annotations
from dataclasses import dataclass
import plistlib
import subprocess
from typing import Generator
@dataclass
class IORegistryEntry:
name: str
entry_class: str
properties: dict
location: str
children: list[IORegistryEntry]
parent: IORegistryEntry
class IOReg:
def __init__(self):
self.ioreg = plistlib.loads(subprocess.run("ioreg -a -l".split(), stdout=subprocess.PIPE).stdout.strip())
self.tree = self.recurse(self.ioreg, None)
def recurse(self, entry, parent):
converted = IORegistryEntry(
entry["IORegistryEntryName"],
entry["IOObjectClass"],
{
i: v
for i, v in entry.items()
if i
not in [
"IOServiceBusyState",
"IOServiceBusyTime",
"IOServiceState",
"IORegistryEntryLocation",
"IORegistryEntryName",
"IORegistryEntryID",
"IOObjectClass",
"IORegistryEntryChildren",
"IOObjectRetainCount",
]
},
entry.get("IORegistryEntryLocation"),
[],
parent,
)
for i in entry.get("IORegistryEntryChildren", []):
converted.children.append(self.recurse(i, converted))
return converted
def parse_conditions(self, entry: IORegistryEntry, **kwargs):
conditions = []
if "parent" in kwargs:
conditions.append(self.parse_conditions(entry.parent, **kwargs["parent"]))
if "children" in kwargs:
conditions.append(any(self.parse_conditions(i, **kwargs["children"]) for i in entry.children))
if "name" in kwargs:
conditions.append(kwargs["name"] == entry.name)
if "entry_class" in kwargs:
conditions.append(kwargs["entry_class"] == entry.entry_class)
if "key" in kwargs:
conditions.append(kwargs["key"] in entry.properties)
if "property" in kwargs:
conditions.append(kwargs["property"][0] in entry.properties and entry.properties[kwargs["property"][0]] == kwargs["property"][1])
return all(conditions)
def find(self, root: IORegistryEntry = None, **kwargs) -> Generator[IORegistryEntry, None, None]:
if not root:
root = self.tree
if not kwargs:
return
if self.parse_conditions(root, **kwargs):
yield root
for i in root.children:
for j in self.find(i, **kwargs):
yield j