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First draft of backend independent plugins

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This commit is contained in:
Jonas Dellinger
2022-06-16 18:33:43 +02:00
parent a95bf94d87
commit 0a12fe6102
9 changed files with 297 additions and 130 deletions
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backend/loader.py
+13 -15
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@@ -1,4 +1,4 @@
from asyncio import Queue
from asyncio import Queue, get_event_loop, sleep, wait_for
from json.decoder import JSONDecodeError
from logging import getLogger
from os import listdir, path
@@ -16,7 +16,7 @@ except UnsupportedLibc:
from watchdog.observers.fsevents import FSEventsObserver as Observer
from injector import get_tab, inject_to_tab
from plugin import PluginWrapper
from plugin_wrapper import PluginWrapper
class FileChangeHandler(RegexMatchingEventHandler):
@@ -29,7 +29,7 @@ class FileChangeHandler(RegexMatchingEventHandler):
def maybe_reload(self, src_path):
plugin_dir = Path(path.relpath(src_path, self.plugin_path)).parts[0]
if exists(path.join(self.plugin_path, plugin_dir, "plugin.json")):
self.queue.put_nowait((path.join(self.plugin_path, plugin_dir, "main.py"), plugin_dir, True))
self.queue.put_nowait(plugin_dir, True)
def on_created(self, event):
src_path = event.src_path
@@ -102,9 +102,9 @@ class Loader:
with open(path.join(self.plugin_path, plugin.plugin_directory, "dist/index.js"), 'r') as bundle:
return web.Response(text=bundle.read(), content_type="application/javascript")
def import_plugin(self, file, plugin_directory, refresh=False):
def import_plugin(self, plugin_directory, refresh=False):
try:
plugin = PluginWrapper(file, plugin_directory, self.plugin_path)
plugin = PluginWrapper(plugin_directory, self.plugin_path)
if plugin.name in self.plugins:
if not "debug" in plugin.flags and refresh:
self.logger.info(f"Plugin {plugin.name} is already loaded and has requested to not be re-loaded")
@@ -112,13 +112,12 @@ class Loader:
else:
self.plugins[plugin.name].stop()
self.plugins.pop(plugin.name, None)
if plugin.passive:
self.logger.info(f"Plugin {plugin.name} is passive")
self.plugins[plugin.name] = plugin.start()
self.plugins[plugin.name] = plugin
self.loop.create_task(plugin.start())
self.logger.info(f"Loaded {plugin.name}")
self.loop.create_task(self.dispatch_plugin(plugin.name))
except Exception as e:
self.logger.error(f"Could not load {file}. {e}")
self.logger.error(f"Could not load {plugin_directory}. {e}")
print_exc()
async def dispatch_plugin(self, name):
@@ -130,7 +129,7 @@ class Loader:
directories = [i for i in listdir(self.plugin_path) if path.isdir(path.join(self.plugin_path, i)) and path.isfile(path.join(self.plugin_path, i, "plugin.json"))]
for directory in directories:
self.logger.info(f"found plugin: {directory}")
self.import_plugin(path.join(self.plugin_path, directory, "main.py"), directory)
self.import_plugin(directory)
async def handle_reloads(self):
while True:
@@ -143,16 +142,15 @@ class Loader:
method_name = request.match_info["method_name"]
try:
method_info = await request.json()
args = method_info["args"]
method_args = method_info["args"]
except JSONDecodeError:
args = {}
method_args = {}
try:
if method_name.startswith("_"):
raise RuntimeError("Tried to call private method")
res["result"] = await plugin.execute_method(method_name, args)
res["success"] = True
res = await plugin.call_method(method_name, method_args)
except Exception as e:
res["result"] = str(e)
res["result"] = repr(e)
res["success"] = False
return web.json_response(res)