Files
bearhub/fpakman/core/model.py
Vinícius Moreira f9f47d1429 Downgrade
2019-06-25 18:25:04 -03:00

143 lines
3.7 KiB
Python
Executable File

from threading import Lock, Thread
from typing import List
import requests
from fpakman.core import flatpak
__FLATHUB_URL__ = 'https://flathub.org'
__FLATHUB_API_URL__ = __FLATHUB_URL__ + '/api/v1'
class ImpossibleDowngradeException(Exception):
pass
class FlatpakManager:
def __init__(self):
self.apps = []
self.apps_db = {}
self.http_session = requests.Session()
self.lock_db_read = Lock()
def load_database_async(self):
Thread(target=self.load_database, daemon=True).start()
def load_database(self):
self.lock_db_read.acquire()
try:
res = self.http_session.get(__FLATHUB_API_URL__ + '/apps')
if res.status_code == 200:
for app in res.json():
self.apps_db[app['flatpakAppId']] = app
finally:
self.lock_db_read.release()
def get_version(self):
return flatpak.get_version()
def read_installed(self) -> List[dict]:
installed = flatpak.list_installed()
if installed:
installed.sort(key=lambda p: p['name'].lower())
available_updates = flatpak.list_updates_as_str()
for app in installed:
if not self.apps_db:
self.load_database()
if self.apps_db:
app_data = self.apps_db.get(app['id'], None)
else:
app_data = None
if not app_data:
app['latest_version'] = None
app['icon'] = None
else:
app['latest_version'] = app_data['currentReleaseVersion']
app['icon'] = app_data['iconMobileUrl']
if app['icon'].startswith('/'):
app['icon'] = __FLATHUB_URL__ + app['icon']
app['update'] = app['id'] in available_updates
self.apps = installed
return [*self.apps]
def update_apps(self, refs: List[str]) -> List[dict]:
if self.apps:
for ref in refs:
package_found = [app for app in self.apps if app['ref'] == ref]
if package_found:
package_found = package_found[0]
updated = flatpak.update(ref)
if updated:
package_found['update'] = not updated
return [*self.apps]
return []
def _find_by_ref(self, ref: str):
package_found = [app for app in self.apps if app['ref'] == ref]
if package_found:
return package_found[0]
def update_app(self, ref: str):
"""
:param ref:
:return: the update command stream
"""
if self.apps:
app_found = self._find_by_ref(ref)
if app_found:
return flatpak.update_and_stream(ref)
def remove_app(self, ref: str):
"""
:param ref:
:return: the uninstall command stream
"""
if self.apps:
app_found = self._find_by_ref(ref)
if app_found:
return flatpak.uninstall_and_stream(ref)
def downgrade_app(self, ref: str, root_password: str):
if self.apps:
app_found = self._find_by_ref(ref)
if app_found:
commits = flatpak.get_app_commits(app_found['ref'], app_found['origin'])
commit_idx = commits.index(app_found['commit'])
# downgrade is not possible if the app current commit in the first one:
if commit_idx == len(commits) - 1:
raise ImpossibleDowngradeException()
return flatpak.downgrade_and_stream(app_found['ref'], commits[commit_idx + 1], root_password)