Files
bearhub/fpakman/core/snap/controller.py
2019-07-25 16:55:49 -03:00

137 lines
5.5 KiB
Python

import os
import shutil
from argparse import Namespace
from datetime import datetime
from typing import Dict, List
from fpakman.core import disk
from fpakman.core.controller import ApplicationManager
from fpakman.core.disk import DiskCacheLoader
from fpakman.core.model import ApplicationData, Application, ApplicationUpdate
from fpakman.core.snap import snap
from fpakman.core.snap.model import SnapApplication
from fpakman.core.snap.worker import SnapAsyncDataLoader
from fpakman.core.system import FpakmanProcess
from fpakman.util.cache import Cache
class SnapManager(ApplicationManager):
def __init__(self, app_args: Namespace, api_cache: Cache, disk_cache: bool, http_session):
super(SnapManager, self).__init__(app_args=app_args)
self.api_cache = api_cache
self.http_session = http_session
self.disk_cache = disk_cache
def map_json(self, app_json: dict, installed: bool, disk_loader: DiskCacheLoader) -> SnapApplication:
app = SnapApplication(publisher=app_json.get('publisher'),
rev=app_json.get('rev'),
notes=app_json.get('notes'),
app_type=app_json.get('type'),
base_data=ApplicationData(id=app_json.get('name'),
name=app_json.get('name'),
version=app_json.get('version'),
latest_version=app_json.get('version'),
description=app_json.get('description')
))
if app.publisher:
app.publisher = app.publisher.replace('*', '')
app.installed = installed
api_data = self.api_cache.get(app_json['name'])
expired_data = api_data and api_data.get('expires_at') and api_data['expires_at'] <= datetime.utcnow()
if (not api_data or expired_data) and not app.is_library():
if disk_loader and app.installed:
disk_loader.add(app)
SnapAsyncDataLoader(app=app, api_cache=self.api_cache, manager=self, http_session=self.http_session, download_icons=self.app_args.download_icons).start()
else:
app.fill_cached_data(api_data)
return app
def search(self, word: str, disk_loader: DiskCacheLoader) -> Dict[str, List[SnapApplication]]:
installed = self.read_installed(disk_loader)
res = {'installed': [], 'new': []}
for app_json in snap.search(word):
already_installed = None
if installed:
already_installed = [i for i in installed if i.base_data.id == app_json.get('name')]
already_installed = already_installed[0] if already_installed else None
if already_installed:
res['installed'].append(already_installed)
else:
res['new'].append(self.map_json(app_json, installed=False, disk_loader=disk_loader))
return res
def read_installed(self, disk_loader: DiskCacheLoader) -> List[SnapApplication]:
res = [self.map_json(app_json, installed=True, disk_loader=disk_loader) for app_json in snap.read_installed()]
return res
def downgrade_app(self, app: Application, root_password: str) -> FpakmanProcess:
return FpakmanProcess(subproc=snap.downgrade_and_stream(app.base_data.name, root_password), wrong_error_phrase=None)
def clean_cache_for(self, app: SnapApplication):
self.api_cache.delete(app.base_data.name)
if app.supports_disk_cache() and os.path.exists(app.get_disk_cache_path()):
shutil.rmtree(app.get_disk_cache_path())
def can_downgrade(self):
return True
def update_and_stream(self, app: SnapApplication) -> FpakmanProcess:
pass
def uninstall_and_stream(self, app: SnapApplication, root_password: str) -> FpakmanProcess:
return FpakmanProcess(subproc=snap.uninstall_and_stream(app.base_data.name, root_password))
def get_app_type(self):
return SnapApplication
def get_info(self, app: SnapApplication) -> dict:
info = snap.get_info(app.base_data.name, attrs=('license', 'contact', 'commands', 'snap-id', 'tracking', 'installed'))
info['description'] = app.base_data.description
info['publisher'] = app.publisher
info['revision'] = app.rev
info['name'] = app.base_data.name
if info.get('commands'):
info['commands'] = ' '.join(info['commands'])
return info
def get_history(self, app: Application) -> List[dict]:
return []
def install_and_stream(self, app: SnapApplication, root_password: str) -> FpakmanProcess:
return FpakmanProcess(subproc=snap.install_and_stream(app.base_data.name, app.confinement, root_password))
def is_enabled(self) -> bool:
return snap.is_installed()
def cache_to_disk(self, app: Application, icon_bytes: bytes, only_icon: bool):
if self.disk_cache and app.supports_disk_cache():
disk.save(app, icon_bytes, only_icon)
def requires_root(self, action: str, app: SnapApplication):
return action != 'search'
def refresh(self, app: SnapApplication, root_password: str) -> FpakmanProcess:
return FpakmanProcess(subproc=snap.refresh_and_stream(app.base_data.name, root_password))
def prepare(self):
pass
def list_updates(self) -> List[ApplicationUpdate]:
return []