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luabin.py
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luabin.py
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from platform import architecture, system
from json import loads as json_loads, load as json_load, dump as json_dump
from os.path import join
from os import makedirs, getenv
from traceback import print_exception
from requests import get as http_get
from config import LuaBinConfig
from updateable import UpdateableResource
from typing import Any, Mapping
usedDLLs: set[str] = set()
class LuaBin(UpdateableResource):
storage: Any
def __init__(self, folder: str, name: str) -> None:
super().__init__(folder, name)
self.disable_updates = getenv(f"DISABLE_UPDATE_LUABIN_{self.name.upper()}", "") == "true"
self.load()
def load(self):
usedDLLs.add(self.makeBinaryName())
usedDLLs.add(self.makeMetaName())
file = self.formatPath(self.makeMetaName())
try:
with open(file, "r") as f:
self.storage = json_load(f)
except FileNotFoundError as e:
self.storage = {}
except Exception as e:
print_exception(e)
self.storage = {}
def save(self):
makedirs(self.folder, exist_ok=True)
file = self.formatPath(self.makeMetaName())
with open(file, "w") as f:
json_dump(self.storage, f)
def formatPath(self, name: str):
return join(self.folder, name)
def makeBinaryName(self):
arch_suffix = ""
if architecture()[0] == "64bit":
arch_suffix = "64"
system_name = system()
platform_suffix = ""
if system_name == "Windows":
# Windows is the only platform with a 32-bit suffix
# for some reason, thanks GMod
if arch_suffix == "":
arch_suffix = "32"
platform_suffix = "win"
elif system_name == "Linux":
platform_suffix = "linux"
elif system_name == "Darwin":
platform_suffix = "osx"
return f"gmsv_{self.name}_{platform_suffix}{arch_suffix}.dll"
def makeMetaName(self):
return f"{self.makeBinaryName()}.meta"
class GithubReleaseLuaBin(LuaBin):
repo_org: str
repo_name: str
def __init__(self, folder: str, name: str, config: Mapping[str, Any]):
super().__init__(folder, name)
self.repo_org = config["org"]
self.repo_name = config["name"]
if "tag" in config:
self.fixed_tag = config["tag"]
self.release = f"tags/{self.fixed_tag}"
else:
self.fixed_tag = None
self.release = "latest"
def queryReleaseInfo(self, use_release: str | None = None):
if use_release is None:
use_release = self.fixed_tag
if use_release is not None:
release = self.storage.get("release", None)
if release is not None and release["tag_name"] == use_release:
return release
res = http_get(url=f"https://github.com/repos/{self.repo_org}/{self.repo_name}/releases/{self.release}")
res.raise_for_status()
release = json_loads(res.text)
self.storage["release"] = release
self.save()
return release
def isReleaseInstalled(self, release: dict[str, Any]):
return release["tag_name"] == self.storage.get("tag_name", "")
def storeRelease(self, release: dict[str, Any]):
self.storage["tag_name"] = release["tag_name"]
self.save()
def getBinaryURL(self, release: dict[str, Any]):
binary_name = self.makeBinaryName()
for asset in release["assets"]:
if asset["name"] == binary_name:
return asset["browser_download_url"]
return None
def checkUpdate(self, offline: bool = False):
if self.disable_updates:
return False
if offline:
release = self.storage.get("release", None)
if release is None:
return True
else:
release = self.queryReleaseInfo()
if self.isReleaseInstalled(release):
return False
if self.getBinaryURL(release) is None:
print("Found update, but no binary, pointless to update", flush=True)
return False
return True
def update(self):
if self.disable_updates:
return
release = self.storage.get("release", None)
if release is None:
release = self.queryReleaseInfo()
if self.isReleaseInstalled(release):
return
url = self.getBinaryURL(release)
if url is None:
print("LuaBin manifest missing binaries, ignoring", flush=True)
return
resp = http_get(url=url, stream=True)
resp.raise_for_status()
with open(self.formatPath(self.makeBinaryName()), "wb") as f:
_ = f.write(resp.content)
self.storeRelease(release)
def makeLuaBin(folder: str, config: LuaBinConfig):
if config.type == "github_release":
return GithubReleaseLuaBin(folder, config.name, config.config)
else:
raise ValueError(f"{config.type} is an invalid LuaBin type")
def isDLLUsed(dll: str):
return dll in usedDLLs